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Precautions for use of Carbomer 940

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Precautions for use of Carbomer 940

Carbomer is also known as acrylic resin, polyacrylic acid, carbomer resin, carbopol or carbopol. The appearance is white loose powder with a slight special smell. This product is very easy to absorb moisture, so it is placed in a ventilated The warehouse is protected from light and dry to ensure product quality.

 

Carbomer 940 uses: short rheology, high viscosity, high clarity, low ion resistance and shear resistance, suitable for skin care lotions, creams, alcohol-containing transparent gel products, transparent skin care gels, hair Use styling gel, traveling wave, shower gel, recommended dosage: 0.2-1.0%. Carbo 940 has short rheological properties, and the viscosity reaches 63000MPA.S at 0.5%, which is suitable for products with high viscosity.

 

latest company news about Precautions for use of Carbomer 940  0

 

Precautions for use of Carbomer 940: Long-term stirring or high-shear stirring after carbomer neutralization will cause viscosity loss;
The presence of electrolyte will reduce the thickening efficiency of carbo resin;
Long-term ultraviolet radiation will reduce the viscosity of carbomer.

 

Finally, Carbomer is soluble in water, glycerol and ethanol, and has the characteristics of colloidal solution. The usual concentration is 0.1% ~ 3%. Because its molecular structure contains 52% ~ 68% acidic groups, it has certain acidity. The pH value of 1% water dispersions is 2.5 to 3, and the viscosity is relatively low. When neutralizing with alkali, the viscosity gradually increases with the gradual dissolution of macromolecules, forming a clear solution at low concentration, forming a semitransparent gel at a high concentration. The gel has the greatest viscosity and consistency at pH6 ~ 12, and the viscosity decreases when pH < 3 or pH > 12. Commonly used neutralizers include triethanolamine, ethylenediamine, laurylamine, sodium bicarbonate, sodium hydroxide, etc. generally, 1 g carbomer needs 1.35g triethanolamine or 400mg sodium hydroxide to neutralize. Strong electrolytes and sunlight can reduce the viscosity of the gel. The temperature also has some effect on the viscosity, but the relative change is not great. The gel is best preserved in the refrigerator.

Pub Time : 2021-05-21 20:35:30 >> News list
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