Carbomer 980
Brief Introduction:
Carbomer is a high molecular polymer cross-linked with acrylic acid and allyl sucrose or allyl pentaerythritol, also known as carbopol. The product is loose white powder, acidic, hygroscopic and special slightly odorous, soluble in water, ethanol and glycerin. The molecule contains 56%~58% of carboxyl groups, therefore it is weakly acidic. When carbomer is dispersed in water, due to the repulsion between the negative charges generated by the ionization of the carboxyl group, the curly polymer stretches and expands in volume. The pH value of the 0.5% aqueous dispersion is 2.7-3.5. The 1% aqueous dispersion can be neutralized by alkaline substances to form a gel. Commonly used aqueous dispersions have a concentration of 0.1% to 3.0%.
Specifications of our Carbomer 980:
| Test Items | Specifications | Test Methods |
| 0.5% aqueous solution viscosity | 40000mPa·s - 60000mPa·s | Rotary viscometer |
| 0.2% aqueous solution viscosity | 13000mPa·s - 30000mPa·s | Rotary viscometer |
| 0.5% aqueous solution transmittance(420nm) | Not less than 92% | UV |
| 0.2% aqueous solution transmittance(420nm) | Not less than 92% | UV |
| Residual ethyl acetate | Not more than 0.5% | Gas chromatography |
| Residual cyclohexane | Not more than 0.3% | Gas chromatograph |
| Acrylic acid | Not more than 0.25% | HPLC |
| Loss on drying | Not more than 2.0% | Oven |
Packaging:
20kg carton boxes lined with PE bags.
Storage Conditions:
Preserved in unopened original containers in a cool dry place before using; kept away from direct sunlight, heat, moisture and oxygen.
Shelf Life:
This product may be stored for 24 months in the unopened original containers below 25℃.
