What is calcium stearate?
Calcium stearate, a chemical compound of stearic acid and calcium, finds broad applications in various industries. It serves as a mould release agent, lubricant, stabilizer, and thermal stabilizer.
Key industries utilizing calcium stearate include pharmaceuticals, food, paints, plastics, rubber, cosmetics, textiles, and construction.
Calcium stearate application
Calcium stearate can be used as a heat stabilizer for polyvinyl chloride, a lubricant for a variety of plastic processing, and a mold release agent. In hard products, mixing with basic lead salt and lead soap can increase the speed of gelation.
Calcium stearate is also used in non-toxic soft films and appliances such as food packaging and medical appliances. Calcium stearate can also be used as a halogen absorbent for polyethylene and polypropylene to eliminate the adverse effects of residual catalyst on color and stability.
In rubber processing, calcium stearate is used as a plasticizer, which can soften natural rubber and synthetic rubber, but has almost no effect on vulcanization. It is also used as a lubricant for polyolefin fibers and molding compounds, a thickening agent for grease, a waterproofing agent for textiles, a flattening agent for paints, and a plasticizer in the manufacture of plastic records. Used as halogen absorbent in polyethylene and polypropylene; lubricant and release agent for thermosetting plastics such as phenolic and amino; thickening agent for grease; waterproofing agent for waterproof fabric; flattening agent for paint and lubricant for pencil lead. Food-grade calcium stearate is used as an anticaking agent.
Calcium stearate is also used in pencil lead production, medicine, and the perfume industry.
In these applications, it enhances processing efficiency, improves product consistency, and offers valuable properties such as anti-caking, emulsification, and water-repellency.