
Carbomer 940 is a high-performance crosslinked polyacrylic polymer synthesized through the crosspolymerization of acrylic monomers with allyl sucrose allyl ether. Its molecular structure contains a large number of carboxyl groups (-COOH), endowing it with core functions of highly effective thickening, stable emulsification, and suspension dispersion.
| Item | Specification |
| Viscosity (20 rpm, 25°C, mPa·s) | 19,000–35,000 (0.2% aqueous solution) 40,000–70,000 (0.5% aqueous solution) |
| Solution clarity (420 nm) % | ≥85 (0.2% aqueous solution) |
| Solubility | Easily soluble in polar solvents such as water, ethanol, and glycerin; insoluble in non-polar solvents like petroleum ether and chloroform. |
| Thickening Mechanism | Intrinsically weakly acidic; requires alkaline neutralization to pH 6–8. |
| Thermal Stability | Stable at conventional processing temperatures (≤80°C). Viscosity temporarily decreases at high temperatures but recovers upon cooling. |
| Electrolyte Sensitivity | High salt concentrations disrupt molecular chain charge balance. |
| Chemical Compatibility | Compatible with most cosmetic and pharmaceutical ingredients (e.g., preservatives, vitamins), but avoid direct mixing with strongly acidic or alkaline substances. |
Cosmetics and Skincare:
– Core matrix for gel-based products like serums, masks, and acne gels.
– Stabilizes O/W emulsions in lotions and creams, adjusting texture and viscosity.
– Suspends sunscreen particles (e.g., titanium dioxide) in sunscreens, improving dispersion uniformity and enhancing protection.
Pharmaceutical Applications:
– Serves as a base for topical formulations like analgesic gels and hemorrhoid ointments.
– Functions as a humectant and adhesion enhancer in eye drops.
– Used in oral suspensions to stabilize poorly soluble drugs.
Personal Care:
– Used in toothpaste and mouthwash to regulate viscosity, improve glide during use, and stabilize active ingredients (e.g., fluoride).
– Used in air fresheners and gel cleaners to prolong active ingredient release and enhance lasting effects.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
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