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Tylose H 20 P2 is a water-soluble, non-ionic, highly etherified hydroxyethyl cellulose powder. Tylose H 20 P 2 provides increased biostability, fast consistency development, high solution clarity and thermal stability, and low sag resitance and water demand. This grade of hydroxyethyl cellulose (HEC) is ideal for use in emulsion tile adhesives, exterior, interior, and silicone resin paints, drilling fluids, non-woven fabrics, and washing up liquids.
CAS NUMBER: 9004-62-0
SYNONYM:
Tylose H20 P2; Hydroxyethyl cellulose (HEC); tayloz h 20 p 2; tylose h20p2; tylos h 20 p 2; tylose h20-p2 Hydroxyethyl cellulose, high etherification; Hydroxyethylcellulose; Cellulose; hydroxyethyl ether; Hydroxyethylcellulose; 2-Hydroxyethyl cellulose; Hyetellose; Natrosol; Cellosize; HYDROXYETHYLCELLULOSE; Ethyl cellulose; Ethylcellulose; Aquacoat; Ethocel; Tylose H 300 P2; natrosol; Surelease; Cellulose ethyl; Ethocel MED; Ethocel STD; Triethyl cellulose; Ethocel E7; Ethocel N7; Ampacet E/C; Ethocel E50; Cellulose ethylate; Diethylaminoethyl-Sephacel(R) Tylose HS 30000 YP2; Hydroxyethyl cellulose, high etherification; Hydroxyethylcellulose; Cellulose; hydroxyethyl ether; Hydroxyethylcellulose; 2-Hydroxyethyl cellulose
Tylose H 20 P2 are soluble in water at any temperature. Tylose H 20 P2 are nonionic cellulose ethers, which are offered as free flowing powder or in granular form. Many Tylose H 20 P2 grades have a retarded solubility which ensures a lump free solution in aqueous systems. Hydroxyethyl cellulose (Tylose H 20 P2) polymer is a hydroxyethyl ether of cellulose, obtained by treating cellulose with sodium hydroxide and reacting with ethylene oxide. Tylose H 20 P2 polymers are largely used as water-binder and thickening agent in many industry applications, that is, personal care products, pharmaceutical formulations, building materials, adhesives, etc., and as stabilizer for liquid soaps. They are available as white free-flowing granular powders that easily dissolve in cold and hot water to give transparent solutions with varying viscosities depending on polymer concentration, type and temperature.
Natrosol 250 Tylose H 20 P2 is available in 10 viscosity types, that go from low viscosity values (types L and J) ranging between 0.08 and 0.4 Pas at c = 5 wt.%, intermediate viscosity values (types E, G, K, M) ranging between 0.03 and 6.5 Pas at c = 2 wt.%, arriving to the highest viscosity values (types MH, H, HH) ranging between 0.8 and 5 Pas at c = 1 wt.% (informations are given in the producer booklet Aqualon, 1999). The molecular weight and the degree of polymerization of the Natrosol Tylose H 20 P2 types is directly proportional to their viscosity. Being a nonionic polymer, Natrosol is less sensitive to pH changes; however, pH and temperature may slight affect the hydration and dissolution time of the polymer. Tylose H 20 P2 is a gelling and thickening agent derived from cellulose. Tylose H 20 P2 is widely used in cosmetics, cleaning solutions, and other household products. Tylose H 20 P2 and methyl cellulose are frequently used with hydrophobic drugs in capsule formulations, to improve the drugs' dissolution in the gastrointestinal fluids. This process is known as hydrophilization.
Tylose H 20 P2 is also used extensively in the oil & gas industry as a drilling mud additive under the name Tylose H 20 P2 as well in industrial applications, paint & coatings, ceramics, adhesives, emulsion polymerization, inks, construction, welding rods, pencils and joint fillers. Tylose H 20 P2 is one of the main ingredients in the personal lubricant KY Jelly. Tylose H 20 P2 is also a key ingredient in the formation of big bubbles as Tylose H 20 P2 possesses the ability to dissolve in water but also provide structural strength to the soap bubble. Among other similar chemicals, Tylose H 20 P2 is often used as slime (and gunge, in the UK), a gooey substance often used on television and in fundraising events which is poured over individuals with the aim of causing embarrassment.
Tylose H 20 P2 acts as a demulcent by relieving inflammation or irritation and dryness of eyes. Tylose H 20 P2 acts as one of the key ingredient and viscosity-enhancing agent to prolong corneal contact time and increase intraocular drug levels. Tylose H 20 P2 is used as a gelling and thickening agent in the development of biostructures for the delivery of hydrophobic drugs. Tylose H 20 P2 is used in the development of polymer networks and block copolymers useful in separation technology such as capillary electrophoresis and in biofilms and coatings. Tylose H 20 P2 polymers are largely used as water-binder and thickening agent in many industry applications, that is, personal care products, pharmaceutical formulations, building materials, adhesives, etc., and as stabilizer for liquid soaps.
Tylose H 20 P2 is a commonly used cellulose ethers organic water-based ink thickening agent, belongs to a water-soluble non-ionic compound, with good water thickening ability, degraded by oxygen, acid and enzyme, under alkaline conditions can be crosslinked by Cu2 +. Has thermal stability, when heated, does not appear gelation, does not occur precipitation under acidic conditions, the film-forming property is good, the aqueous solution can be made of a transparent film, can be derived from the reaction of alkali cellulose with ethylene oxide, having properties such as thickening, emulsifying, adhesive, suspension, film-forming, maintaining moisture and protectiving colloid. The role of thickener in the aqueous ink is thickened.
The viscosity of the ink added a thickening agent increases, can improve the physical and chemical stability of the ink; due to the increased viscosity, rheology of the ink can be controlled at the time of printing; the pigment and filler in ink is not easy to precipitate, increasing the storage stability of the water-based ink. Thickening agent is a cellulose-based material and (or) polyvinyl alcohol substances. Cellulose substances may be methyl cellulose, ethyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, Tylose H 20 P2 and hydroxypropylmethyl cellulose; polyvinyl alcohol material may be an or several species of polyethylene. Tylose H 20 P2 is white to yellowish fibrous or powdery solid, non-toxic, tasteless and soluble in water. Insoluble in common organic solvents. Having properties such as thickening, suspending, adhesive, emulsifying, dispersing, water holding. Different viscosity range of solution can be prepared. Having exceptionally good salt solubility to electrolyte.
Hetastarch, another nonproteinaceous colloid, is a complex mixture of ethoxylated amylopectins ranging in molecular weight from 10 to 1,000 kDa (average molecular weight, ~450 kDa). When infused as a 6% solution, hetastarch approximates the activity of human albumin. The larger molecular weights, however, increase Tylose H 20 P2’s intravascular residence time as well as Tylose H 20 P2’s plasma expansion effects relative to albumin. Hetastarch is synthetically produced, so Tylose H 20 P2 is degraded more slowly and is less antigenic than other colloids. Despite these advantages, hetastarch is quite expensive and also has no oxygen-carrying capacity.
When highly polar hydroxyl groups on crystalline cellulose are substituted with hydroxyalkyl groups to manufacture HPC or Tylose H 20 P2, water solubility initially increases due to a reduction in crystallinity and hydrogen bonding between the cellulose backbone chains. However, as the amount of hydroxyalkyl substitution continues to increase, the polymer becomes increasingly hydrophobic.
The equilibrium moisture content steadily decreases as MS increases from 2.0 to 5.0 for both Tylose H 20 P2 and HPC. A similar relationship has also been demonstrated for the cloud point.43 An exception to this behavior is polymers with ionic groups in their side chains. In this case, increasing the level of highly polar substituents will increase water solubility. For example, when the DS for sodium carboxymethyl cellulose is increased from 0.7 to 1.2, the equilibrium moisture content at 50% relative humidity increases from 13% to 18%. Regenerated Tylose H 20 P2 is made by dissolving cellulose xanthate in 4–7% sodium hydroxide and contacting with aqueous sulfuric acid. These steps convert the cellulose xanthate back into cellulose, which may be spun into viscose rayon or cast into films. The fibers are used in textiles (artificial silk), tyre cords, and V belts. The films are used in packaging (Cellophane) or sausage casings. Weiner casings (70% regenerated cellulose, 12% glycerol, and 18% water) are peeled away after the meat emulsion is cooked. Hemp paper casings (23% paper, 46% regenerated cellulose, 21% glycerol, and 10% water) are used in bologna, salami, pepperoni, summer sausage, and liverwurst.
Tylose H 20 P2 moieties are highly reactive, allowing a variety of esters and ethers to be manufactured. Because each anhydroglucose has three hydroxyl groups, the maximum degree of substitution (DS) is three. Purified wood pulp or cotton linters (short fibers) are the industrial sources of ‘chemical cellulose.’ Hydroxyethyl cellulose. Tylose H 20 P2 Provides effects like thickening, pseudoplastic properties, water retention, protective colloid effects, film forming and a high level of salt tolerance. Offers high gloss, high pigment compatibility, high thickening effect and high water retention. Exhibits moderate wet scrub resistance, anti-spattering, and pseudoplasticity. Used for paints and coatings applications like interior paints, solid paints, exterior paints, tinters, glazes, and silicon resin paints. Hydroxyethylcellulose. Tylose H 20 P2 acts as a thickening agent. Tylose H 20 P2 is available in powder form with delayed solubility. Used in shampoo.
Tylose H 20 P2 is a thickener, protective colloid, binder, stabilizer, and suspending agent. Tylose H 20 P2 is obtained from wood pulp Copyright 2014 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial Review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require Tylose H 20 P2 or chemical cotton by treatment with an alkali.
A purified form of cellulose is reacted with sodium hydroxide to produce a swollen alkali cellulose, which is chemically more reactive than untreated cellulose. The alkali cellulose is then reacted with ethylene oxide to produce a series of Tylose H 20 P2 ethers. The manner in which ethylene oxide is added to cellulose can be described by two terms, the degree of substitution (DS) and the molar substitution (MS). The DS designates the average number of hydroxyl positions on the anhydroglucose unit that have been reacted with ethylene oxide. Since each anhydroglucose unit of the cellulose molecule has three hydroxyl groups, the maximum value for DS is 3. MS is defined as the average number of ethylene oxide molecules that have reacted with each anhydroglucose unit.
Once a hydroxyethyl group is attached to each unit, Tylose H 20 P2 can further react with additional groups in an end-to-end formation. This reaction can continue and there is no theoretical limit for MS. Tylose H 20 P2 is a nonionic, water-soluble polymer widely used in pharmaceutical formulations. Tylose H 20 P2 is primarily used as a thickening agent in ophthalmic and topical formulations, although it is also used as a binder and film-coating agent for tablets. Tylose H 20 P2 is present in lubricant preparations for dry eye, contact lens care, and dry mouth. The concentration of Tylose H 20 P2 used in a formulation is dependent upon the solvent and the molecular weight of the grade. Tylose H 20 P2 is also widely used in cosmetics. Safety Tylose H 20 P2 is primarily used in ophthalmic and topical pharmaceutical formulations. Tylose H 20 P2 is generally regarded as an essentially nontoxic and nonirritant material.
Acute and subacute oral toxicity studies in rats have shown no toxic effects attributable to Tylose H 20 P2 consumption, the Tylose H 20 P2 being neither absorbed nor hydrolyzed in the rat gastrointestinal tract. However, although used in oral pharmaceutical formulations, Tylose H 20 P2 has not been approved for direct use in food products. Glyoxal-treated Tylose H 20 P2 is not recommended for use in oral pharmaceutical formulations or topical preparations that may be used on mucous membranes. Tylose H 20 P2 is also not recommended for use in parenteral products. storage Tylose H 20 P2 powder is a stable though hygroscopic material. Aqueous solutions of Tylose H 20 P2 are relatively stable at pH 2–12 with the viscosity of solutions being largely unaffected. However, solutions are less stable below pH 5 owing to hydrolysis. At high pH, oxidation may occur. Increasing the temperature reduces the viscosity of aqueous Tylose H 20 P2 solutions. However, on cooling, the original viscosity is restored. Solutions may be subjected to freeze–thawing, high-temperature storage, or boiling without precipitation or gelation occurring.
Tylose H 20 P2 is subject to enzymatic degradation, with consequent loss in viscosity of its solutions. Enzymes that catalyze this degradation are produced by many bacteria and fungi present in the environment. For prolonged storage, an antimicrobial preservative should therefore be added to aqueous solutions. Aqueous solutions of Tylose H 20 P2 may also be sterilized by autoclaving. Tylose H 20 P2 powder should be stored in a well-closed container, in a cool, dry place.
IUPAC NAME:
5,10,15,20,25,30,35-heptakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31.2.2.2~3,6~.2~8,11~.2~13,16~.2~18,21~.2~23,26~.2~28,31~]nonatetracontane-36,37,38,39,40,41,42,43,44,45,46,47,48,49-tetradecol; Beta-cyclodextrin; beta-Cyclodextrin; cycloheptapentylose; Cycloheptapentylose; Tetradecaoxaoctacyclo[31.2.2.2(3,6).2(8,1)1.2(13,16).2(18,21).2(23,26).2(28,31)]nonatetracontane-36,37,38,39,40,41,42,43,44,45,46,47,48,49-tetradecol
TRADE NAME:
Beta Cyclodextrin; CAVAMAX W7; CAVAMAX W7 PHARMA; CAVAMAX W7; CAVAMAX W7 Food; CAVAMAX W7 PHARMA; KLEPTOSE
OTHER NAME:
1187028-35-8; 1187028-35-8; 1269982-56-0; 1269982-56-0; 1532526-96-7; 1532526-96-7; 1714824-77-7; 1714824-77-7; 37331-89-8; 37331-89-8; 449728-55-6; 449728-55-6; 47918-72-9; 47918-72-9; 7585-39-9
Alkali cellulose is a natural polymer, each of a fiber-based ring contains three hydroxyl groups, the most active hydroxyl reaction to give Tylose H 20 P2. The raw material cotton linter or refined pulp meal were immersed in 30% liquid caustic soda, took out to squeeze after half an hour. Squeezed water containing soda to 1: 2.8, pulverized. Pulverized alkali cellulose was added into the reaction kettle, sealed, vacuumized, nitrogen charge, repeated to vacuumize and nitrogen charge to replace atmosphere in the reaction kettle. Precooled the liquid ethylene oxide was pressed into, cooling water was pumped in jacket of reaction kettle, controlled at about 25 ℃ and reacted for 2 h, crude product of Tylose H 20 P2 was obtained. The crude product was washed with alcohol, added acetic acid to adjust pH value to 4-6, added glyoxal to crosslink and aging. Then washed with water, centrifugal dewatering, dryed, milled to obtain Tylose H 20 P2. Raw material consumption (kg/t) linter or low pulp meal 730-780 liquid caustic soda (30%) 2400 ethylene oxide 900 alcohol (95%) 4500 acetic acid 240 Glyoxal (40%) 100-300.
The raw material cotton linter or refined pulp meal were immersed in 30% liquid caustic soda, after half an hour took out to squeeze. Squeezed water containing soda to 1: 2.8, pulverized alkali cellulose was added into the reaction kettle, sealed and vacuumized, nitrogen charge, used nitrogen to replace all atmosphere in the reaction kettle,Precooled the liquid ethylene oxide was pressed into. In the cooling, controlled at 25 ℃ and reacted for 2 h, to give the crude product of crude Tylose H 20 P2. The crude product was washed with ethanol and acetic acid was added to adjust the pH value to 4-6. added glyoxal to crosslink and aging, washed with water fast, finally centrifugal dehydration, dried, milled, obtained low salt Tylose H 20 P2.
Tylose H 20 P2 is insoluble in most organic solvents. Tylose H 20 P2 is incompatible with zein and partially compatible with the following water-soluble compounds: casein; gelatin; methylcellulose; polyvinyl alcohol, and starch. Tylose H 20 P2 can be used with a wide variety of watersoluble antimicrobial preservatives. However, sodium pentachlorophenate produces an immediate increase in viscosity when added to Tylose H 20 P2 solutions. Tylose H 20 P2 has good tolerance for dissolved electrolytes, although Tylose H 20 P2 may be salted out of solution when mixed with certain salt solutions. For example, the following salt solutions will precipitate a 10% w/v solution of Cellosize WP-09 and a 2% w/v solution of Cellosize WP-4400: sodium carbonate 50% and saturated solutions of aluminum sulfate; ammonium sulfate; chromic sulfate; disodium phosphate; magnesium sulfate; potassium ferrocyanide; sodium sulfate; sodium sulfite; sodium thiosulfate; and zinc sulfate.
Natrosol is soluble in most 10% salt solutions, excluding sodium carbonate and sodium sulfate, and many 50% salt solutions with the exception of the following: aluminum sulfate; ammonium sulfate; diammonium phosphate; disodium phosphate; ferric chloride; magnesium sulfate; potassium ferrocyanide; sodium metaborate; sodium nitrate; sodium sulfite; trisodium phosphate; and zinc sulfate. Natrosol 150 is generally more tolerant of dissolved salts than is Natrosol 250. Tylose H 20 P2 is also incompatible with certain fluorescent dyes or optical brighteners, and certain quaternary disinfectants which will increase the viscosity of aqueous solutions.
Included in the FDA Inactive Ingredients Database (ophthalmic preparations; oral syrups and tablets; otic and topical preparations). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients. Tylose H 20 P2 is not currently approved for use in food products in Europe or the USA, although Tylose H 20 P2 is permitted for use in indirect applications such as packaging. This restriction is due to the high levels of ethylene glycol residues that are formed during the manufacturing process.
Tylose H 20 P2 is a polysaccharide derivative with gel thickening, emulsifying, bubble-forming, water-retaining and stabilizing properties. Tylose H 20 P2 is used as a key ingredient in many household cleaning products, lubricants and cosmetics due to its non-ionic and water-soluble nature. Tylose H 20 P2 is often used as an ingredient in ophthalmic pharmaceutical preparations such as artificial tear solutions and adjunct agent in topical drug formulations to facilitate the delivery of drugs with hydrophobic character.
Tylose H 20 P2 acts as a demulcent by relieving inflammation or irritation and dryness of eyes. Tylose H 20 P2 acts as one of the key ingredient and viscosity-enhancing agent to prolong corneal contact time and increase intraocular drug levels 4. Interacts with the solid surface through hydrogen bonding to thicken and prolong the formation time of a water-retaining film. Tylose H 20 P2 acts as a drug carrier or microsphere to entrap other drug molecules and form a viscous gel-like dispersion, enabling drug diffusion across biological membranes 3. For alleviating surface irritation in topical ocular administrations, such as artificial tear solutions. Tylose H 20 P2 is also found in topical formulations to aid in more efficient drug diffusion across the membranes.
May cause chemical pneumonitis in case of inhalation and skin irritation. Animal data suggests potential alteration in female fertility. Tylose H 20 P2 is outgrowths/extragrouth on parenchyma cells of xylem vessels of secondary heartwood. When the plant is stressed by drought or infection, tyloses will fall from the sides of the cells and "dam" up the vascular tissue to prevent further damage to the plant. Tyloses can aid in the process of making sapwood into heartwood in some hardwood trees, especially in trees with larger vessels. These blockages can be used in addition to gum plugs as soon as vessels become filled with air bubbles, and they help to form a stronger heartwood by slowing the progress of rot. Tylose H 20 P2 is cellulose in which both ethyl and hydroxyethyl groups are attached to the anhydroglucose units by ether linkages. Tylose H 20 P2 is prepared from cellulose by treatment with alkali, ethylene oxide and ethyl chloride. The article of commerce may be specified further by the viscosity of its aqueous solutions.
Tylose H 20 P2 is a cellulose-derived thickening and the gelling agent used in capsules containing hydrophobic drugs in order to improve dissolution of drugs within GI fluids in a method known as the hydrophilization method. This nonionic and water-soluble polymer is also used in cosmetics, cleaning solutions, and other household products. Tylose H 20 P2 will fabricate crystal-clear gel products and thicken the aqueous phase of cosmetic emulsions. Their tendency to lump or agglomerate, when first wetted with water, is a disadvantage associated with Tylose H 20 P2 and other water-soluble thickeners. The R-grade of Tylose H 20 P2 facilitates solution preparation without lumping when wetted with water, thus increasing dissolution and total processing times. Tylose H 20 P2 is primarily used in ophthalmic and topical pharmaceutical formulations. It is generally regarded as an essentially nontoxic and nonirritant material. Acute and subacute oral toxicity studies in rats have shown no toxic effects attributable to Tylose H 20 P2 consumption, the Tylose H 20 P2 being neither absorbed nor hydrolyzed in the rat gastrointestinal tract.
However, although used in oral pharmaceutical formulations, Tylose H 20 P2 has not been approved for direct use in food products. Glyoxal-treated Tylose H 20 P2 is not recommended for use in oral pharmaceutical formulations or topical preparations that may be used on mucous membranes. Tylose H 20 P2 is also not recommended for use in parenteral products. Tylose H 20 P2 powder is a stable though hygroscopic material. Aqueous solutions of Tylose H 20 P2 are relatively stable at pH 2–12 with the viscosity of solutions being largely unaffected. However, solutions are less stable below pH 5 owing to hydrolysis. At high pH, oxidation may occur. Increasing the temperature reduces the viscosity of aqueous Tylose H 20 P2 solutions. However, on cooling, the original viscosity is restored. Solutions may be subjected to freeze–thawing, high-temperature storage, or boiling without precipitation or gelation occurring. Tylose H 20 P2 is subject to enzymatic degradation, with consequent loss in viscosity of its solutions. Enzymes that catalyze this degradation are produced by many bacteria and fungi present in the environment. For prolonged storage, an antimicrobial preservative should therefore be added to aqueous solutions.
Aqueous solutions of Tylose H 20 P2 may also be sterilized by autoclaving. Tylose H 20 P2 powder should be stored in a well-closed container, in a cool, dry place. Tylose H 20 P2 has good tolerance for dissolved electrolytes, although it may be salted out of solution when mixed with certain salt solutions. For example, the following salt solutions will precipitate a 10% w/v solution of Cellosize WP-09 and a 2% w/v solution of Cellosize WP-4400: sodium carbonate 50% and saturated solutions of aluminum sulfate; ammonium sulfate; chromic sulfate; disodium phosphate; magnesium sulfate; potassium ferrocyanide; sodium sulfate; sodium sulfite; sodium thiosulfate; and zinc sulfate. Natrosol is soluble in most 10% salt solutions, excluding sodium carbonate and sodium sulfate, and many 50% salt solutions with the exception of the following: aluminum sulfate; ammonium sulfate; diammonium phosphate; disodium phosphate; ferric chloride; magnesium sulfate; potassium ferrocyanide; sodium metaborate; sodium nitrate; sodium sulfite; trisodium phosphate; and zinc sulfate. Natrosol 150 is generally more tolerant of dissolved salts than is Natrosol 250.
Tylose H 20 P2 is also incompatible with certain fluorescent dyes or optical brighteners, and certain quaternary disinfectants which will increase the viscosity of aqueous solutions. Included in the FDA Inactive Ingredients Database (ophthalmic preparations; oral syrups and tablets; otic and topical preparations). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients. Tylose H 20 P2 is not currently approved for use in food products in Europe or the USA, although it is permitted for use in indirect applications such as packaging. This restriction is due to the high levels of ethylene glycol residues that are formed during the manufacturing process. When highly polar hydroxyl groups on crystalline cellulose are substituted with hydroxyalkyl groups to manufacture HPC or Tylose H 20 P2, water solubility initially increases due to a reduction in crystallinity and hydrogen bonding between the cellulose backbone chains. However, as the amount of hydroxyalkyl substitution continues to increase, the polymer becomes increasingly hydrophobic. As shown in Fig. 7.31, the equilibrium moisture content steadily decreases as MS increases from 2.0 to 5.0 for both Tylose H 20 P2 and HPC. A similar relationship has also been demonstrated for the cloud point.43 An exception to this behavior is polymers with ionic groups in their side chains.
In this case, increasing the level of highly polar substituents will increase water solubility. For example, when the DS for sodium carboxymethyl cellulose is increased from 0.7 to 1.2, the equilibrium moisture content at 50% relative humidity increases from 13% to 18%. Tylose H 20 P2 is a commonly used cellulose ethers organic water-based ink thickening agent, belongs to a water-soluble non-ionic compound, with good water thickening ability, degraded by oxygen, acid and enzyme, under alkaline conditions can be crosslinked by Cu2 +. Has thermal stability, when heated, does not appear gelation, does not occur precipitation under acidic conditions, the film-forming property is good, the aqueous solution can be made of a transparent film, can be derived from the reaction of alkali cellulose with ethylene oxide, having properties such as thickening, emulsifying, adhesive, suspension, film-forming, maintaining moisture and protectiving colloid. The role of thickener in the aqueous ink is thickened. The viscosity of the ink added a thickening agent increases, can improve the physical and chemical stability of the ink; due to the increased viscosity, rheology of the ink can be controlled at the time of printing; the pigment and filler in ink is not easy to precipitate, increasing the storage stability of the water-based ink.
Tylose H 20 P2 is white to yellowish fibrous or powdery solid, non-toxic, tasteless and soluble in water. Insoluble in common organic solvents.
Having properties such as thickening, suspending, adhesive, emulsifying, dispersing, water holding. Different viscosity range of solution can be prepared. Having exceptionally good salt solubility to electrolyte. Tylose H 20 P2 is used for cracking method to extract polymerized dispersing agents such as oil water base gel fracturing fluid, polystyrene and polyvinyl chloride. Also for latex thickening agent in paint industry, hygristor in electronics industry, cement anti-coagulant agent and water retention agent in construction industry. Glazing in ceramic industry and toothpaste binder. Also widely used in many aspects such as printing and dyeing, textile, paper, pharmaceutical, health, food, cigarettes, pesticides and fire extinguishing agent. Used as a water-based drilling fluids, and thickening agent and filtrate reducer of completion fluids, thickening agent has obvious effect on brine drilling fluid. Also can be used for filtrate reducer of oil well cement. Cross-linking with the polyvalent metal ions into a gel. As surfactants, protective colloids, emulsion stabilizers in combination with emulsion such as vinyl chloride, vinyl acetate emulsion, and a tackifier, dispersant, dispersion stabilizer of emulsion. Widely used in many aspects such as coatings, fibers, dyeing, paper, cosmetics, pharmaceuticals, pesticides. There are many uses in oil exploitation and machinery industry.
Tylose H 20 P2 provides the required consistency for application by providing a specific rheological profile or flow characteristic. This makes the paint easier to apply. Tylose H 20 P2 amount and viscosity determines the viscosity level and leads to optimum application properties. During application, a viscosity that decreases with increasing shear stress is desired. Pseudoplasticity serves to optimize the application properties of the coating system according to the rolling, scrubbing resistance and splash behavior. Tylose H 20 P2 is recommended to use hydrophobic modified Tylose for low spatter interior paints. Thanks to the binder thickening effect, the viscosity will increase at high shear speeds and thus reduce spatter. Correlation between the rheology profile of a paint and its application properties can be provided by our technical staff. Due to its thickening effect in coatings, Tylose H 20 P2 acts as a stabilizer for dispersed components. Serum formation i.e. pigments and fillers etc. The tendency to precipitate exhibited by such insoluble components is slowed or even stopped altogether. As a result, the coating material is protected against slow deposition of its components and is also stable during storage.
An important feature of Tylose H 20 P2 is its pronounced water holding capacity. Tylose H 20 P2 prevents water from penetrating the absorbent substrate too quickly, resulting in better adhesion to the substrate. To the greatest extent possible, water will remain in the coating material during drying. A uniform film formation is achieved and incipient cracks are prevented. Especially in formulations with high pigment volume concentrations, the water retention effect of Tylose H 20 P2 provides sufficient open time for application. Adequate water retention in paints mainly depends on the type and temperature of the substrate, as well as the concentration and viscosity level. Coating materials are predominantly dispersions of pigments and fillers in an aqueous medium. Tylose H 20 P2 acts as a protective colloid by preventing the agglomeration of solid particles. This leads to better storage stability and easier agitation of the paint. Due to its molecular structure and specific properties, Tylose H 20 P2 is a highly effective protective colloid. Tylose H 20 P2 is widely used in other application areas such as polymerization to prevent polymer coagulation.
Tylose H 20 P2 includes all areas of Personal Care products, nutritious and decorative cosmetics. Nourishing cosmetics include hair care, skin care and oral hygiene. Decorative cosmetics include makeup, powder, eyeshadow, and mascara. In addition to its thickener effect, Tylose H 20 P2 improves the foam stability of shaving foams, retains moisture during the perm process, increases the stickiness of adhesive creams, acts as a binder in powder make-up and facilitates the distribution of coloring agents in the hair. Tylose H 20 P2, a physiologically harmless cosmetic additive, offers numerous applications in the field of personal care. Tylose H 20 P2is our most widely used additive in cosmetics. In addition to ultra-pure cosmetic types, our standard Tylose H 20 P2 types can also be used.
Cement-based thin-bed adhesives are used for bonding ceramic tiles, building walls from aerated concrete or limestone bricks, and installing exterior insulation finishing systems (EIFS). They offer easy and light workability, high productivity and guarantee a long durability. Cement tile adhesives should be easy to glaze. They should provide long set-up time, high shear resistance and sufficient adhesion strength.
These features may be affected by Tylose H 20 P2 MC. Adhesives for block laying are used to create the walls of aerated concrete blocks, sand-lime bricks or standard bricks. EIFS adhesives provide an excellent bond between the substrate and insulation boards. Tylose H 20 P2 MC improves the processability of EIFS adhesives and increases both the adhesion and sag resistance.
Renders are mixtures of mineral binders, aggregates and auxiliaries. Depending on the process, there is a distinction between hand and machine application. Renders are used for basic coating, insulation, renovation and decorative purposes. Cement or cement / slaked lime-based plasters can be used for exterior and interior works. Cement-based grout and finishing compounds are used to repair systems and level rough walls and floors. Mortar is applied to fill the gaps between ceramic or stone tiles. Tylose H 20 P2 can darken and adjust the consistency of hair creams, hair gels, toothpastes and lotions. The thickening effect of the Tylose H 20 P2 grades depends on the degree of polymerization (DP) or on the molecular weight and the concentration used. When using the same concentration, the viscosity of the solution increases with increasing degree of polymerization.
An increase in tylose concentration provides a strong increase in viscosity Aqueous solutions of Tylose H 20 P2 grades are shear thinning liquids. The viscosity decreases with an increase in shear stress and returns to its initial viscosity when the shear stress is removed. High viscosity Tylose H 20 P2 grades have a stronger shear thinning effect than low viscosity ones shown in the diagram below. Emulsions are widely used in the skin care field. A finely dispersed mixture of oil and water, normally two immiscible liquids, is present in an emulsion without any visible segregation. One liquid exists as small droplets dispersed in the other liquid. Depending on the phase in which the droplets are formed, a water-in-oil emulsion (W / O emulsion) or an oil-in-water emulsion (O / W emulsion) is possible. Preferred stabilizers for O / W emulsions are thickeners moving in the water phase. Tylose's surface activity is low compared to tenside products. However, due to its thickening effect and colloidal protective properties, Tylose H 20 P2 makes an important contribution to the stabilization of the emulsion formed. In this case Tylose H 20 P2 is preferred to use low to medium viscosity Tylose H 20 P2 types.
Non-ionic Tylose H 20 P2, MH and MO types show good compatibility with a large number of surfactants. They are also compatible with many other raw materials such as starch, dextrin, gelatin, sorbitol and propylene glycol. Due to their chemical structure, Tylose H 20 P2 grades show good compatibility with electrolytes. Soluble phosphate, carbonate and sulphate exhibit a stronger flocculation effect at higher concentrations than nitrate and chloride. Electrolyte compatibility of Tylose H 20 P2 grades with chlorides is generally higher than Tylose H 20 P2 MO grades. In addition, AlCl3 provides a higher thickening effect with Tylose H 20 P2 grades (see diagram below). Although Tylose H 20 P2 is insoluble in most organic solvents, Tylose H 20 P2 exhibits relatively good solubility in water / organic solvent mixtures such as ethanol, isopropanol or glycerol and water, even when relatively high fractions of the organic solvent are present. Tylose H 20 P2 are water soluble cellulose ethers used as highly effective thickeners and binders. A transparent, stable solution is obtained when added in small amounts. Tylose H 20 P2 are water soluble, yellowish white, odorless and tasteless powders and are used in the construction industry (HEMC for building paints, building adhesives) and as a component of toothpaste.
