Carbomer 940 9007-20-9

CAS:  9007-20-9
molecular formula: C15H17C103
molecular weight: 280.74668
EINECS number: 618-435-5

 abbreviated as PAA, also known  homopolymer, acrylic resin coating, acrylic resin, acrylic monomer polymer, acrylic modified resin, acrylic resin emulsion, is a water-soluble polymer of . It is also soluble in some polar solvents such as  ethylene glycol. The ionization constant is 4.75. Due to the large number of carboxyl groups in the molecule, it can react with bases, alcohols and amines. It can also undergo dehydration, degradation and complexation reactions. It can be used as thickener, dispersant, flocculant, adhesive and film former, etc., and is widely used in industries such as coatings, plastics, papermaking, textiles, rubber, food,cosmetics and water treatment.

Usage: 
1. Used as a scale inhibitor and dispersant in industrial water treatment. Good compatibility. Can also be used as pre-drinking water treatment. Used in the preparation of alumina to separate red mud. Used in chlor-alkali plants to refine brine is mostly used in the manufacture of cosmetics. It can be used as an ointment to promote the absorption of Botrytis cinerea and can also be used for controlled release. Used in the preparation of leather and some high-grade commodity finishing agents, acrylic resin paint used for fixing chromium salts, tanning, reducing chromium pollution, etc. used to improve the processing properties of polyvinyl chloride used as corrosion inhibitor and scale inhibitor, water stabilizer, quenching agent, thickening agent, etc. used as leather coating filler, textile paste and water stabilizer used in the manufacture of acrylic resin paint can be used as a film-forming agent and adhesive in leather finishing agents, also used in the production of polyacrylic resin emulsion paint widely used in face leather, clothing leather, glove leather and other light leather decoration, can enhance the leather's bending resistance, elongation, light resistance, aging resistance, cold resistance, heat resistance, with pigment paste modified granular leather is the main modified film-forming agent.
2. It can be used as an excellent suspending agent, emulsifier, transparent matrix for advanced cosmetics,  excipients. It is also the most effective water-soluble thickener. It is also used in toothpaste, as a thickener and binder, and can be used in combination with other polymers.
3. It is a commonly used dispersant that can disperse calcium carbonate, calcium sulfate and other salts of microcrystals or sediment in water without precipitation, so as to achieve the purpose of scale inhibition. In addition to being used as scale inhibition and dispersant in circulating cooling water systems, it is also widely used in papermaking and textile, printing and dyeing, ceramics, coatings and other industries.
4. It is used in water treatment of chemical industry, fertilizer, printing and dyeing, power generation, etc.