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Help CenterCarbopol Acrylates Copolymer Carbomer 940 For Cosmetics 9003-01-4
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Carbomer, also known as Carbomer, is an acrylic acid cross-linked resin obtained by cross-linking pentaerythritol and acrylic acid. It is a very important rheology modifier. After neutralization, Carbomer is an excellent gel matrix. It has important uses such as thickening and suspension, and has simple process and good stability. It is widely used in emulsion, cream and gel.
Chinese name: Carbomer
Chinese synonyms: Carbomer series; carboxy ethylene copolymer; carbomer; polyacrylic acid; polyacrylic acid resin.
English name: POLY(ACRYLIC ACID)
CAS number: 9003-01-4
Molecular formula: (C3H4O2)n
INCI Name: Carbomer
This product is a polymer of acrylic acid bonded with allyl sucrose or pentaerythritol allyl ether. Calculated on the dry basis, the carboxylic acid group (-COOH) should be 56.0% to 68.0%.
Carbomer 940 is a white loose powder. It has thickening properties, high transparency, high viscosity, strong suspension ability, short rheology and thixotropy, and low resistance to ion shear stress. The main characteristics are as follows: Swellable and slightly acidic. Widely used in transparent gel, essence and cream products, especially suitable for high transparent products.
Function and use:
Carbomer 940 has the characteristics of short rheology, high viscosity, high clarity, low ion resistance and shear resistance. Its role in the product is mainly reflected in three aspects: thickening, suspension and emulsification. Carbo 940 can produce higher viscosity in the case of very low content (normal dosage 0.25-0.5%). Carboresin can be used as an excellent suspending agent to suspend insoluble components in the system, and can also be used as an emulsifier to emulsify and stabilize the oil-water phase. In addition, it is also a transparent base for cosmetics and an effective water-soluble thickener.
Technical indicators:
Appearance: loose white, slightly acidic powder
Performance index parameters: rheological properties, relative viscosity, suspension properties, ion resistance, shear resistance.
Test items Indicators
Appearance: fluffy, wet white powder, slightly smelly, 1% dispersed in water with a pH value of 3
Solubility: When dissolved in water, alcohol or glycerin, it can be neutralized with alkaline solutions of hydroxides or amines
Identification method:
1. To neutralize the dispersion into a gel
2. Use 1% dispersion liquid to react with thymol blue solution to show orange color
3. Use 1% dispersion liquid to react with cresol red liquid to show yellow
Viscosity (0.5% aqueous solution): 40,000—60,000mPas
Dehydration weight loss rate (1 hour at 80°C): ≤2.0%
Heavy metal: ≤0.002%
Benzene content: ≤0.5%
Carboxylic acid group content: 56.0%—68.0%
Performances:
①It has the functions of thickening, suspending and stabilizing
②Short flow
③High transparency
④The viscosity of Carbomer resin is not affected by temperature
⑤Topical drug delivery system, crystal clear gel, water or alcohol solvent
Application field
①Skin care lotion, cream
②Transparent gel products containing ethanol
③Transparent skin care gel, hair styling gel
④Wave, body soap
⑤Mud rubbing treasure
The advantages of Boermy Carbomer are as follows:
1. Efficient thickening and suspending performance
As a water-soluble rheology-modified thickener, carbomer products can provide high-efficiency thickening and suspending properties and excellent transparency
2. A wide range of pH values and electrolyte resistance to meet different formulation systems
3. Different viscosities and rheologies for unique skin feel
4. It is easy to disperse and handle during use, reducing dust pollution and making the operation safer.
【Recommended dosage】
0.2-1.5%
【Packaging and storage】
20KG/box, store in a cool, dry and ventilated place.
Note:
After the carbomer is completely dissolved in water, it needs to be neutralized by adding alkaline substances, such as triethanolamine and sodium hydroxide, to achieve good results. After carbomer is neutralized, long-term stirring or high-shear stirring will cause viscosity loss; the presence of electrolyte will reduce the thickening efficiency of carbomer resin, and long-term ultraviolet radiation will reduce the viscosity of carbomer.
Kind tips:
The dispersion time of various types of Kabo in water is related to the water temperature and quality. It is recommended to use deionized water. U20 needs to be soaked for about 4 hours, and the specific dissolution time is related to the dissolved amount.
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