Description
Calcium stearate is a calcium salt of stearic acid, which is a saturated fatty acid. It is commonly used as a stabilizer and lubricant in the plastics and rubber industries. Some key points about calcium stearate include:
- Stabilizer: Calcium stearate is used as a stabilizer in PVC (polyvinyl chloride) and other polymers to prevent degradation during processing. It helps to improve the thermal stability of the polymer and reduce discoloration.
- Lubricant: Calcium stearate is used as a lubricant in the production of plastics, rubber, and other materials. It helps to reduce friction between the polymer chains and improve flow properties.
- Release Agent: Calcium stearate is used as a release agent in the production of rubber and plastic parts. It helps to prevent the parts from sticking to molds and facilitates their removal.
- Waterproofing Agent: Calcium stearate is used as a waterproofing agent in various applications, including in the production of paper and textiles. It helps to improve the water resistance of these materials.
- Emulsifier: Calcium stearate is used as an emulsifier in the food industry to stabilize emulsions and prevent separation of ingredients.
- Pharmaceuticals: Calcium stearate is used as a tablet lubricant in the pharmaceutical industry. It helps to improve the flow properties of powders and prevent them from sticking to the tablet press.