Carbomer 940
Carbomer 940 is a cross-linked acrylic polymer. It is a water-soluble rheology-modified thickener with high-efficiency thickening and suspending properties. It has short rheological (no drip) characteristics and is widely used in transparent gel , Hydroalcoholic gel and cream system, and can form a bright and transparent water-based or hydroalcoholic gel.
Chinese name:
Chinese alias: polyacrylic acid; carboxyvinyl copolymer
English name: Carbomer
English alias: POLY (ACRYLIC ACID)
CAS number: 9007-20-9
Molecular formula: C3H4O2
Molecular weight: 72.06270
Accurate quality: 72.02110
PSA: 37.30000
LogP: 0.25700
Physical and chemical properties
Density: 1.063g / cm3
Melting point: 12.5ºC
Boiling point: 141ºC
Flash point: 61.6ºC
Refractive index: n20 / D 1.442 [1]
【Character】 This product is white loose powder; characteristic slight odor; hygroscopic.
[Identification] Take 0.1g of this product, disperse it in 20ml of water, add 0.4ml of 10% sodium hydroxide solution to form a gel.
Performance and advantages
Short rheological properties
High viscosity
Higher thickening, suspension and stability performance
High transparency
Application field
Personal care and home care products
Hair styling gel
Hydroalcoholic gel
Moisturizing gel
shower gel
Hand, body and facial lotion
Cream
2. Pharmaceutical field:
①Carbon resin as a pharmaceutical excipient was included in the pharmacopoeia of the United States and other countries in 1957, and has been widely used in the pharmaceutical industry and other related industries.
Industry
②It is mainly used as thickening agent, suspending agent and adhesive in pharmaceuticals, as a matrix material for slow-release preparations, as a retarder, and as a film for solid preparations
Clothing materials, such as the commonly used lotion in color Doppler
3. Industrial field
Rheology modifier in water-based paint, negative electrode gel agent for alkaline batteries, gel agent in solid fuel glue, etc.
Suggest
The recommended usage is 0.2 ~ 1.0 wt%
Spread the polymer evenly in the medium while stirring, but avoid agglomeration, stir well to disperse
Neutralization to pH 5.0 ~ 10 polymer has ideal thickening performance; in a system with hydroalcohol, the neutralizer should be selected correctly;
After neutralization, avoid high-speed shearing or stirring to reduce viscosity loss