polydimetylisiloksaani

Polydimethylsiloxane, often abbreviated as PDMS, is a synthetic silicone polymer with the chemical formula [((CH3)2SiO)n] where n is the degree of polymerization. It is the most common type of silicone fluid and is characterized by its silicon-oxygen backbone and methyl groups attached to the silicon atoms. PDMS is known for its excellent thermal stability, chemical inertness, low surface tension, and biocompatibility. These properties make it a versatile material used in a wide array of applications.

In industrial settings, PDMS is utilized as a lubricant, a release agent, and an antifoaming agent in various processes. Its non-stick properties are exploited in cookware, food processing, and mold making. In the medical field, PDMS is employed in medical devices, contact lenses, and as a component in certain drug delivery systems due to its low toxicity and inertness within the body. It is also a common ingredient in cosmetics and personal care products, contributing to smoothness and spreadability in lotions, shampoos, and conditioners.

PDMS can exist in various forms, including liquids, gels, elastomers, and resins, depending on its molecular weight and cross-linking. Its transparency and resistance to weathering further contribute to its widespread use in sealants, adhesives, and coatings. The manufacturing process typically involves the hydrolysis of dimethyldichlorosilane, followed by polymerization.