Stearates Used As A Stabilizer In PVC Formulations

Calcium stearate is the most commonly used stearate in the plastics industry. It is a white, odorless powder that is highly effective as a lubricant and mold release agent. It is also used as a stabilizer in PVC formulations, where it helps to prevent degradation and discoloration of the material. Stearates are stearic acid salts or esters. Stearates are typically created during the saponification processes, in which soaps are made by processing fats with strong bases. Stearates feature both hydrophilic and hydrophobic areas, allowing them to function as surfactants. Most frequently, sodium hydroxide or potassium hydroxide is utilized as the base, which results in the synthesis of sodium or potassium stearates. Many deodorants, rubbers, paints, and inks include sodium stearate.

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