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Dispex AA 4040 = Dispersing Agents = Ammonium Polyacrylate
CAS NO: 9003-03-6
EC NO: 618-348-2
Formula : C3H4O2
Dispex AA 4040 is dispersing agent with excellent dispersing efficiency for inorganic fillers and pigments. Reduced water sensitivity due to ammonia neutralization. Broad application range. Low molecular weight, advantageous for very fine filler particles
DISPEX AA 4040 is a derivative of a family of highly effective, low viscosity dispersing agents for waterborne coating systems. The product is especially suited for the dispersion of inorganic pigments.
DISPEX AA 4040 is a solution of an ammonium salt of an acrylic polymer in water. The neutralizing alkali used in conjunction with the acrylic polymer can significantly impact the properties of the final coating.
solvent water
density at 20 °C (68 °F) ~ 1.30 g/cm3
solid content ~ 45 %
active content ~ 40 %
viscosity at 20 °C (68 °F) ~ 400 mPa.
pH ~ 7.5
Dispex AA 4040 preparations are ideal dispersing agents for a wide range of water-based coatings.
Dispex AA 4040 can be used as supplied. The neutralizing alkali used in conjunction with the acrylic polymer can significantly impact the properties of the final coating.
Dispex AA 4040 releases ammonia during the drying process and therefore has little impact on the resistances to water and alkali of the dry film.
The use of Dispex AA 4040 should be limited to pH 5 – 10.5 and temperatures lower than 70 °C (158 °F) due to potential loss of volatile ammonia.
Dispex® AA 4040 is based on an organic polymer and provides improved storage stability of both pigment dispersion and formulated paint when compared with inorganic dispersing agents, e.g., polyphosphate products. There is little or no adverse reaction to high
temperatures or pH changes as indicated in the graphs below (examples showing the accelerated effects).
Dispex® AA 4040 (Old name: Dispex® A 40) is an ammonium polyacrylate polymer. It is a standard dispersing agent. It has low polydispersity leading to most efficient dispersing properties and liquefying effect. Suitable for inorganic fillers and pigments. Dispex® AA 4040 is recommended for low-VOC systems. Used in high PVC paints, matt / interior, silk / semi-gloss, wood paints and stains, gloss paints as well as in plasters, exterior and elastic paints.
Description:
Dispersant for inorganic pigments and fillers. Dispex AA 4040 is a dispersing agent for the production of a wide range of water-borne.paints and varnishes, especially for dispersions of inorganic pigments.
Properties:
Appearance: pale yellow liquid.
CHEMICAL NAME
aqueous solution of ammonium salt of acrylic copolymer, ammonium polyacrylate
Description:
Dispersant for inorganic pigments and fillers. Dispex AA 4040 is a dispersing agent for the production of a wide range of water-borne
paints and varnishes, especially for dispersions of inorganic pigments.
Application:
The product can be used in the supplied form. The alkaline neutralizing agent used in conjunction with the acrylic polymer can greatly affect the properties of the final coating. When using Dispex 4040, ammonia is volatilized during the drying process and as a result, only slight changes in the water and alkalinity of the coating occur.
Dispex AA 4040 is effective in the pH range 5-10.5 and temperatures up to 70 ° C due to the potential for loss of volatile ammonia. Compared to dispersants for inorganic pigments such as polyphosphates,
Dispex AA 4040 is based on an organic polymer and improves the storage stability of both pigment pastes and finished coatings. There is only a slight effect of high temperature or pH changes.
GENERIC NAME: Dispersing Agents, Ammonium polyacrylate
Dispex AA 4040 by BASF is a solution of an ammonium salt of an acrylic polymer in water. Dispex AA 4040 is used as a highly effective, low viscosity dispersing agent for water-borne adhesive systems.
Molecular Weight. : 72.0627
Dispex AA 4040 - ammonium salt water solution acrylic copolymer.
Application
Dispex AA 4040 is universal dispersing agents for the production of a wide range of high pressure paintwork materials.
Dispex AA 4040 is recommended for use in the supplied form. The alkaline neutralizing agent used to stabilize the acrylic polymer can greatly affect the properties of the final coating.
When using Dispex AA 4040, ammonia is volatilized during the drying process and as a result, only slight changes in the water and alkali resistance of the coating occur.
Dispex AA 4040 should be used at pH 5 - 10.5 and temperatures up to 70 ° C due to the potential for loss of volatile ammonia.
Compared to dispersants for non-organic pigments such as eg. polyphosphates based on organic polymers Dispex AA4040 improve the storage stability of both pigment pastes and finished coatings. There is only a slight effect of high temperature or changes in pH on the viscosity of the system.
General requirements
Normal chemical handling requirements and local industrial hygiene regulations must be observed. Effective ventilation should be provided during processing, as well as personal skin protection and safety goggles.
Storage
Dispex AA 4040 must not come into contact with corrosive metals or their alloys without protective coatings during storage and processing. Product containers should be tightly closed during storage and the free air space above the product should be saturated with moisture. The product should not be exposed to strong heat and freezing.
IUPAC names
2-Propenoic acid, homopolymer, ammonium salt
Ammonium Polyacrylate
POLYACRYLIC ACID AMMONIUM SALT
POLYACRYLIC ACID, HOMOPOLYMER, AMMONIUM SALT
Other names
ammonium polyacrylate
Dispex AA 4040 is classified as :
Film forming
Stabilising
Surfactant
Boiling Point 141°C
CAS Number 9003-03-6
Density 1.063g/cm3
Molecular Formula C3H4O2
Description
Dispex AA 4040 is used as a dispersant for all inorganic pigments and fillers in paints being compatible with all common synthetic emulsions.
Dispex AA 4040 has low foaming properties.
Dispex AA 4040 is also used in coatings, adhesives.
Technical Names:
2-Propenoic Acid, Homopolymer, Ammonium Salt
Acrylic Acid Polymer Ammonium Salt
Ammonium Polyacrylate (INCI)
Poly(Acrylic Acid), Ammonium Salt
Product Categories:
Cleaning Products
Industrial and Automotive Chemicals
Polishes and Floor Maintenance Products
Major Uses
1, Typical applications
Dispex AA 4040 use as film-forming agent.
Dispex AA 4040 use as dispersing agent, emulsifying agent.
Dispex AA 4040 use as thickening agent.
2, Personal care products
Film-forming agent, light stabilizer in personal care products.
3, Water treatment
Scale inhibitor, dispersant in water treatment.
4, Building materials
Dispersing agent in ceramics, paints.
Properties
Appearance (1), solid; or colorless to pale yellow liquid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system.Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
SYNONYMS:
Ammonium acrylate
2-Propenoic acid, homopolymer, ammonium salt
9003-03-6
2-Propenoic acid, ammonium salt, homopolymer
Ammonium polyacrylate
Acrylic acid homopolymer ammonium salt
azanium;prop-2-enoate
2-Propenoic acid, ammonium salt (1:1), homopolymer
DTXSID1051220
Poly(acrylic acid), ammonium salt
28214-57-5
67339-90-6
2-Propenoic acid, ammonium salt [ACD/Index Name]
Acide acrylique, ammoniate (1:1) [French] [ACD/IUPAC Name]
Acrylic acid ammoniate (1:1) [ACD/IUPAC Name]
Acrylsäureammoniat (1:1)
