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Things to say about Carbomer 940



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Ezhou city,Hubei province,china


20 Kilogram

20kg/paper package

4-10 days

1000 Kilogram

T/T, L/C


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Product Specification

Other Names : Carbomer 940;Carbomer 980 MF : C3H4O2 Purity (%) : 99 Classification : General Reagents Brand Name : Desheng CAS No. : - EINECS No. : -
M.W. : 72.06270 PH : 2-3.5 Color : White Appearance : Powder Viscosity 1 : 0.2% Aqueous Solution:13000~30000mPa.s Viscosity 2 : 0.5% Aqueous Solution:40000~60000mPa.s

Product Description

Carbomer 940 overview
The English name of Carbomer 940 is Carbomer 940. It is a white fluffy powder; it has a characteristic slightly odor; it has strong hygroscopicity. It is copolymerized with acrylic acid as the monomer, acrylic acid sucrose ether or pentaerythritol allyl ether as the crosslinking agent. The resulting polymer often exists in water in an acidic form, and is easy to swell in water and polar organic solvents (such as ethanol, glycerin, etc.).
Carbomer 940 technical indicators
Brand Capo: 940
Appearance: loose white powder, slightly acidic
pH value (0.5% aqueous solution): 2.7-3.5
Viscosity (in 0.5% aqueous solution): 13000-60000
Apparent density :0.21g/cm3
Residual solvent :<0.45
Loss on drying: <2%
Residual acrylic :<0.25
Bulk density: 21.0-27.0
Carbomer 940 performance
1. Carbo 940 is white and loose; it is acidic, hygroscopic and slightly smelly. It is soluble in water, ethanol, and glycerin. The usual concentration is 0.1%3.0%. Since its molecule contains a large number of carboxyl groups, the aqueous solution should be used after neutralization with alkali to reduce the irritation to the skin and mucous membranes. The neutralizer of Carbo 940 can be sodium hydroxide, potassium hydroxide, potassium bicarbonate, and borax. , Amino acids, polar organic amines such as triethanolamine.
2. The water swellability of carbomer mainly depends on the cross-linking density of the polymer. If the cross-linking density is too high, it will cause water molecules to not smoothly diffuse into the inside of the polymer particles, and the carbomer cannot swell completely and cannot be uniform. If the cross-linking density is too low, although its water swellability is excellent, it will reduce its gel degree, resulting in a decrease in the thickening effect.
3. The light transmittance of carbomer is also closely related to its water swellability. Generally, the better its water swellability, the higher the light transmittance. The level of cross-linking density is generally measured by measuring the water absorption of carbomer. Generally, the higher the water absorption, the lower the cross-linking density. As the amount of crosslinking agent increases, the wetting time gradually increases, the light transmittance gradually decreases, and the water absorption rate gradually decreases.

Application of Carbomer 940
1. Application in external gels: ophthalmic gels, skin gels, dental gels, oral gels, and disposable disinfectant gels.
2. Application in bioadhesive preparations: bioadhesive preparations for nasal cavity, oral or oral bioadhesive preparations, bioadhesive preparations for vagina;
3. Application in oral protein and peptide drug delivery system;
4. Application in sustained and controlled release preparations;
5. Application in transdermal drug delivery formulations;
6. Application in other preparations.
Desheng is a professional carbomer manufacturer. At present, the company sells carbomer 940, carbomer 980 and other models, with sufficient supply and an average daily mass production of about 3 tons. The delivery is fast, the quality is guaranteed, and a professional after-sales team will answer your questions. Now you can apply for a free sample online for trial. Please feel free to contact us if you need it. Things to say about Carbomer 940 Things to say about Carbomer 940 Things to say about Carbomer 940 Things to say about Carbomer 940 Things to say about Carbomer 940

Contact Us

Contact Person : jing zhao

Company:Hubei xindesheng Material Technology Co., Ltd

Address:Los Angeles, California, China,


jing zhao < Hubei xindesheng Material Technology Co., Ltd >
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