PEG-12 dimethicone/PPG-20 crosspolymer is a chemical compound, silicone elastomer with characteristics of high heat resistance and elasticity adaptable to both high and low temperatures, consisting of crosslinked dimethicone copolymers with a bifunctional agent.
It is produced by hydroxylation by adding silicon hydride bonds with a catalyst, usually platinum. Cross-linked polymer containing dimethicone, PEG-12 and PPG-20.
PEG is an acronym for Polyethylene glycol.
PPG is an acronym for Polypropylene glycol.
The term 'eth' refers to the ethoxylation reaction with ethylene oxide after which residues of ethylene oxide and 1,4-dioxane, chemical compounds considered carcinogenic, may remain. The degree of safety therefore depends on the degree of purity of the compound obtained. At present, no manufacturer is known to provide this information on the label.
The name describes the structure of the molecule:
- PEG-12 indicates a polyethylene glycol with a specific average molecular weight. "Dimethicone" is a type of silicone used in cosmetics for its emollient and lubricating properties. Together, PEG-12 dimethicone is an ingredient that enhances the texture of cosmetic products, making them smoother and more pleasant on the skin.
- PPG-20 refers to a polypropylene glycol with a specific molecular weight. "
- Crosspolymer indicates that the PPG molecules are linked in a crosslinked structure, which can increase the stability and viscosity of the product. This ingredient is used to improve the texture and stability of cosmetic formulations.
Raw Materials Used in Production.
PEG-12 Dimethicone/PPG-20 Crosspolymer is a crosslinked polymer formed by combining PEG-12 Dimethicone and PPG-20. PEG-12 Dimethicone is an ethoxylated silicone derivative, while PPG-20 is a polypropylene glycol.
Step-by-step Summary of Industrial Production Process.
- Synthesis of PEG-12 Dimethicone through the reaction of dimethicone with ethylene oxide.
- Production of PPG-20 by polymerization of propylene glycol.
- Crosslinking of the two polymers (PEG-12 Dimethicone and PPG-20) to form a three-dimensional polymer network.
- Purification of the crosslinked polymer to remove impurities and reaction residues.
- Quality control to ensure the polymer meets technical specifications.
Form and Color.
Typically appears as a clear, viscous liquid, colorless or slightly yellow.
What it is used for and where
Cosmetics
Skin conditioning agent - Emollient. Emollients have the characteristic of enhancing the skin barrier through a source of exogenous lipids that adhere to the skin, improving barrier properties by filling gaps in intercorneocyte clusters to improve hydration while protecting against inflammation. In practice, they have the ability to create a barrier that prevents transepidermal water loss. Emollients are described as degreasing or refreshing additives that improve the lipid content of the upper layers of the skin by preventing degreasing and drying of the skin. The problem with emollients is that many have a strong lipophilic character and are identified as occlusive ingredients; they are oily and fatty materials that remain on the skin surface and reduce transepidermal water loss. In cosmetics, emollients and moisturisers are often considered synonymous with humectants and occlusives.
Commercial Applications.
Used in cosmetic and skincare products as a thickening and stabilizing agent. It enhances the texture and stability of cosmetic formulations, such as creams and lotions.