Carbomer 940
Carbomer 940, identified by CAS 76050-42-5, is a high molecular weight cross-linked polyacrylate polymer widely utilized as a rheology modifier in various industrial and laboratory settings. It typically appears as a fine, white, and fluffy powder that exhibits significant hygroscopic properties. When dispersed in water and subsequently neutralized with an appropriate alkaline agent, it forms highly transparent gels with exceptional clarity and high viscosity. This chemical is valued for its ability to provide permanent suspensions and maintain the stability of complex formulations.
In a research and development context, Carbomer 940 is appreciated for its predictable thickening efficiency and short-flow rheological behavior. It functions effectively at low concentrations, making it a cost-efficient choice for controlling the flow properties of aqueous and hydroalcoholic systems. Proper handling is essential, as the material is sensitive to UV light and high shear rates once neutralized, which can lead to a reduction in viscosity.
• It serves as a primary thickening agent in the formulation of clear aqueous and hydroalcoholic gels, providing a crisp, non-tacky skin feel and excellent clarity. This makes it a staple in the production of hand sanitizers, styling gels, and various topical applications where visual transparency is a critical requirement for the end product.
• The polymer acts as an effective stabilizing and suspending agent for insoluble ingredients, such as beads, pigments, or oil droplets, within a liquid matrix. By creating a high yield value, it prevents the sedimentation or flotation of suspended particles, ensuring a uniform distribution and consistent performance throughout the shelf life of the formulation.
• Carbomer 940 is extensively used to modify the rheological profile of emulsions, including oil-in-water creams and lotions. It enhances the structural integrity of these systems, providing the desired consistency and spreadability while preventing phase separation under varying temperature conditions.
• In industrial cleaning and specialty chemical sectors, it is employed to control the drip and flow characteristics of vertical surface cleaners and heavy-duty detergents. Its ability to maintain high viscosity in the presence of various surfactants allows for targeted application and prolonged contact time on treated surfaces.
Product Name: Carbomer 940
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