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NMA 48% = N-Methylolacrylamide 48%
CAS NUMBER: 924-42-5
EC: 213-103-2
MF:C4H7NO2
N-Methylolacrylamide 48% solution is a colorless liquid.
N-Methylolacrylamide 48% solution creates a post-crosslinking region in polymers.
N-methylolacrylamide 48% solution complies with TSCA regulation, mixture of N-methylolacrylamide, water, acrylamide and formaldehyde.
Since N-methylolacrylamide 48% solution has excellent co-solubility with divalent and trivalent cations and quaternary ammonium surfactants, the solubility, compatibility, lime soap dispersibility and other properties of N-methylolacrylamide 48% solutions are greatly improved.
N-methylolacrylamide 48% solution can be used not only alone, but also together with other anionic, nonionic and even multivalent cationic surfactants as the main emulsifier.
N-methylolacrylamide 48% solution is widely used in the emulsion synthesis industry, especially in foam cement, leather, paints, coatings, adhesives.
N-Methylolacrylamide 48% is worth noting that N-Methylolacrylamide 48% solution is especially suitable for the synthesis of vinyl acetate emulsion, vinegar emulsion, vinegar and acrylic emulsion and pure acrylic emulsion when the emulsion is polymerized.
N-Methylolacrylamide 48% solution can give smaller particles to the emulsion, producing high solids low viscosity emulsion.
N-methylolacrylamide 48% solution is a very important and effective latex particle size improver; and can be used as a post-addition stabilizer for latex production, and is also a very important and effective latex particle size improver.
For self-crosslinking emulsions, HT A-103 does not affect the crosslinking of cross-linked monomers such as N-methylol acrylamide, as some Emulsifiers do not contain any organic volatile components.
N-Methylolacrylamide 48% is a chemical compound with the chemical formula C3H5NO.
The IUPAC name is prop-2-enamide.
N-Methylolacrylamide 48% is a white odorless crystalline solid, soluble in water, ethanol, ether and chloroform.
N-Methylolacrylamide 48% decomposes in the presence of acids, bases, oxidizing agents, iron and iron salts.
Non-thermal decomposition produces ammonia and thermal decomposition produces carbon monoxide, carbon dioxide and nitrogen oxides.
N-Methylolacrylamide is a difunctional monomer with reactive vinyl and hydroxymethyl groups.
Thermoplastic polymers can be formed by copolymerization of N-methylolacrylamide with various vinyl monomers by emulsion, solution and suspension techniques.
End products with pendant hydroxymethyl groups can undergo crosslinking under moderate conditions, allowing the conversion of thermoplastic backbone polymers to thermoset materials at the point of use in the absence of an external crosslinking agent.
Conversely, the hydroxymethyl group can be reacted with a substrate such as cellulose and subsequently cross-linked by free radical polymerization.
The uses of N-methylolacrylamide 48% range from adhesives and binders in papermaking and textiles to various surface coatings and resins for varnishes, films and sizing agents.
N-methylolacrylamide 48% can be used in wet and dry strength agents for paper, in textile finishing agents for anti-crease, antistatic agents, dispersing agents, crosslinking agents and emulsion polymers.
N-methylolacrylamide is rapidly absorbed by 48% and metabolized slowly.
N-methylolacrylamide 48% is eliminated by glutathione conjugation followed by renal excretion, which excludes bioaccumulation.
The mercapturate N-acetyl-S-(3-hydroxymethylamino-3-oxopropyl) cysteine, resulting from direct conjugation of NMA with glutathione and subsequent metabolism, is the principal urinary metabolite.
In addition to conjugation with GSH, other potential metabolic pathways are unknown, for example, by the P450 system.
QSAR analysis by the OECD toolbox supports the hypothesis of conversion of NMA to AA.
N-Methylolacrylamide 48% can be prepared by hydrolysis of 48% acrylonitrile by nitrile hydratase.
In industry, most of N-Methylolacrylamide 48% is used in the synthesis of polyNMA 48%, which is used as a water-soluble condenser.
These include wastewater treatment, gel Electrophoresis (SDS-PAGE), paper manufacturing, mineral processing, tertiary oil recovery and non-iron fabric manufacturing.
N-Methylolacrylamide 48% is used in the manufacture of paints and other monomers.
The discovery of N-Methylolacrylamide 48% in some starchy foods in 2002 raised questions about whether these foods are carcinogenic.
As of 2006, N-Methylolacrylamide 48% is not clear whether consumption of N-Methylolacrylamide 48% triggers the development of cancer in humans.
N-Methylolacrylamide 48% In the USA, Emergency Planning and the Community Right-To-Know Act (42 U. S. C. 11002) is classified as a very hazardous substance in section 302, and facilities that manufacture, store, and use significant amounts are subject to strict reporting requirements.
N-Methylolacrylamide 48% has many other uses in molecular biology laboratories; linear polyacrylamide (LPA) is used as a carrier to precipitate small amounts of DNA.
Many laboratory supply companies sell LPA for this use.
Most of the N-Methylolacrylamide 48% is used to produce a variety of polymers.
In the 1970s and 1980s, the polymers with the largest proportional use were used for water treatment.
Additionally, uses include binder, thickener and flocculant in the manufacture of mortar, grout, cement, sewage/wastewater treatment, pesticide formulation, cosmetics, sugar production, soil erosion prevention, ore processing, food packaging, plastic products and paper.
N-Methylolacrylamide 48% is used in some potting soils.
Another usage area is as a chemical medium in the production of N-methylol acrylamide (NMA 48%) and N-butoxyacrylamide.
N-methylol acrylamide) alone or in combination chemically modified jute has been found to improve or modify important textile-related properties such as moisture recovery, tensile properties, fabric stiffness, wrinkle recovery angle, shrinkage parameters, and thermal behavior.
This leads to a reduction in warp path stiffness.
Polymerization and condensation reaction of N-methylolacrylamide in cotton fabrics where K2S2O8, (NH4)2S2O8 or H2O2 can be used as initiator and NH4Cl or (NH4)2HPO4 is used as acid condensation catalyst.
The crease recovery and abrasion resistance (plain) of the treated fabric increased with the higher value of the resin content; tear strength. The effect of the addition of acid catalysts such as NH4Cl on the degree of wrinkling resistance is remarkable, but some significant improvements have been achieved with neutral catalysts such as K2S2O8 alone.
N-Methylolacrylamide 48% is a special monomer with two functional groups, they are ethenyl and methylol.
Through emulsion polymerization or solution polymerization, thermoplastic polymer may be obtained by comining NMA with many kinds of ethenyl monomer.
Because there are functional groups of methylol in the branch chain, this thermoplastic polymer can self cross-link into cross-linked polymer under certain condition.
N-Methylolacrylamide 48% polymer can cross-link in the room temperature, the reaction will quicken if adding acid catalyst or heating it, and many matters in it can promote cross-linking efficaciously.
The methylol in the N-Methylolacrylamide 48% can react with many matters under certain condition, such as Acrylamide, Alcohol, Phenol, Hydroquinone and Phosphoric acid, etc., somerections have been used efficaciously.
It contains N-Methylol Acryl amide (48% solution), N-Methyl Acryl amide with ultra low free formaldehyole.
N-Methylolacrylamide 48% is a kind of well chemical cross-linking agent.
N-Methylolacrylamide 48% is mainly used for modification of fiber, resin manufacture, synthesis of adhesive, leather, paper-making, textile sizing agent, dope, cohesion of wood, petroleum exploitation, etc.
N-Methylolacrylamide 48% is a bifunctional monomer with reactive vinyl and hydroxyethyl groups.
Thermoplastic polymers can be formed by copolymerization of N-Methylolacrylamide 48% with a variety of vinyl monomers by emulsion, solution and suspension techniques.
The resulting products, which have pendant hydroxyethyl groups, can undergo cross-linking under moderate conditions, permitting conversion of thermoplastic backbone polymers to thermoset materials at the point of use in the absence of an external cross-linking agent.
Conversely, the hydroxyethyl group can be reacted with a substrate like cellulose and subsequently cross-linked by free-radical polymerization.
N-Methylolacrylamide 48% either individually or in combination is chemically modified jute is found to improve or alter the important textile related properties like moisture regain, tensile properties, fabric stiffness, crease recovery angle, shrinkage parameters, and thermal behavior.
This leads to reduction in warp-way tenacity.
The uses of N-Methylolacrylamide 48% range from adhesives and binders in papermaking and textiles to a variety of surface coatings and resins for varnishes, films and sizing agents.
N-Methylolacrylamide 48% can be used in wet-strength and dry-strength agents for paper, in textile finishing agents for crease resistance, in antistatic agents, in dispersing agents, in cross-linking agents and in emulsion polymers.
N-Methylolacrylamide 48% is manufactured and used at industrial sites only.
This substance is used in the polymer products. This substance has an industrial use resulting in manufacture of another substance (use of intermediates).
The sectors of uses are agriculture, forestry and fishing and formulation of mixtures and/or re-packaging.
N-Methylolacrylamide 48% is used for the manufacture are chemicals and plastic products.
The physico - chemical properties are reported for a 48% aqueous solution of NMA containing formaldehyde and acrylamide as impurities.
N-Methylolacrylamide 48% is commercially available as a 48% aqueous solution with the following properties:
-assay, 48%
-water, 51-54% (typically 52%)
-pH, 5.5-6.5
-free formaldehyde, 1.5- 0: 3% by weight
-acrylamide, 0: 5.0 wt%
-copper, maximum 2 ppm.
-methylether hydroquinone (inhibitor), 30 ppm
Specific gravity at -25 °C, 1.10
Other physicochemical properties:
-N-Methylolacrylamide 48% is also available as powder and aqueous solution (48%).
-The aqueous solution also contains acrylamide (< 5%) and formaldehyde (< 2% or < 0.5%).
Applications:
-NMA, coating, adhesive, papermaking aid, etc.
-N-Methylolacrylamide 48% is an important chemical raw material, widely used for various high polymers.
-N-Methylolacrylamide 48% has great applicability potential in chemical industry and science study.
Binders used in the textile industry are mostly water-based acrylic dispersions.
These binders provide strength, elastic recovery, soft touch, flexibility, color retention, as well as resistance to washing and aging, to textiles and nonwovens.
However, linkers without reactive functional monomers are not very successful in conferring these properties.
Self-crosslinking monomers are used to improve the properties of textile and non-woven end products.
N-methylolacrylamide 48% (NMA) is one of these monomers with functional groups for self-crosslinking.
However, N-methylolacrylamide 48% used in textile binders emits formaldehyde during crosslinking at high temperatures.
This formaldehyde either remains in the final product or is released into the air.
The U.S. Department of Health and Human Services has released its 12th Report on Carcinogens, and formaldehyde is listed in the category known to be carcinogenic to humans.
Textile industry researchers focus on formaldehyde emissions due to its harmful effects on both humans and the environment.
In this study, a new monomer that does not emit formaldehyde and has self-crosslinking ability was investigated for the replacement of N-Methylolacrylamide 48% and its performance results were compared with NMA.
N-Methylolacrylamide 48% is a widely used cross-linking monomer for fiber modification, resin processing, adhesives and paper, leather, metal surface treatment agents, and soil improvers.
N-Methylolacrylamide 48% is used as an organic synthesis monomer.
N-Methylolacrylamide 48% can be used to prepare a variety of copolymers.
Properties:
-Appearance: White crystalline powder.
-Melting point: 74-75 oC;
-Relative density: 1.074.
-Dissolving in water very easily and having good solubility in hydrophilic solvents such as ethanol, ethyl acetate, acrylic acid or acrylates, etc. but almost undissolving in hydrophobic solvents such as hydrocarbon, halo hydrocarbon, etc.
Use:
Organic synthetic monomer to produce copolymer, including thermosetting resin, optical curing epoxy resin coating oil-proof coating for canvas, baking coating for automobile, boat & machine.
N-Methylolacrylamide 48%'s emulsion can be used in the coating and base layer of fabrics, fiber finishing, leather coating, paper coating and spray cotton or used as adhesive
N-Methylolacrylamide 48% reacts readily with formaldehyde to form N-methylolacrylamide.
Applications:
N-Methylolacrylamide 48% is an important chemical raw material, which is used to various high polymers widely, such as coating, adhesive, papermaking aid, etc.
N-Methylolacrylamide 48% has huge applicability potential in chemical industry and science study.
Package:
The solution is packed in 200kg plastic barrel and the crystal is in 10kg carton.
Storage and usage of NMA 48%:
N-Methylolacrylamide 48% must be kept in cool place, far away heat source and avoid exposure to forceful rays, because heat and rays can lead to polymerize N-Methylolacrylamide 48%, in the presence of acid or foreign metals especially.Avoid the temperature exceed 28℃.
Even N-Methylolacrylamide 48% is kept in good condition, the storage would be best less than 3 months.
The solution will be made crystal under -10℃, you can dissolve N-Methylolacrylamide 48% by heating slowly with warm water bathe, the quality and capacity won’t be affected.
N-Methylolacrylamide 48% is forbidden to open lid if the products in the barrel may be polluted.
The utensil which is used to get it out and the container must be clean, tweak the lid quickly after get it out every time.
Safety and healthy:
Non-burning and non-burst, toxicity, forbidden to swallow and inhale, wash skin with run water if contact it.
Physical state at 20°C and 101,3 kPa: Liquid, clear, colourless to lightyellow, odour: formaldehyde
Melting/freezing point: -10°C at 1 atm
Boiling point: At temperatures above 50°C, polymerisation could be initiated over time. Substance will polymerise before reaching its boiling point.
Relative density: 1.07-1.10 at 25°C
IUPAC NAME:
2-Propenamide,N-(hydroxymethyl)-
N-(hydroxymethyl)acrylamide
n-(hydroxymethyl)acrylamide
N-(Hydroxymethyl)acrylamide
N-(hydroxymethyl)acrylamide
N-(hydroxymethyl)prop-2-enamide
N-Methylolacrylamide
Cylink NMA Monomer, 48% Aqueous, inhibited
FLOCRYL NMA
Flocryl NMA
