Polyethylene glycol and polyethylene glycol fatty acid ester are widely used in cosmetics and pharmaceutical industries. Because of the good properties of polyethylene glycol, water solubility, non-volatile, physiological inertia, mild, lubricity and wetting, soft skin, pleasant post use feeling, etc. The viscosity, moisture absorption and structure of the products can be changed by using polyethylene glycol with different molecular weight grades. Polyethylene glycol (Mr<2000) with relatively low molecular weight is suitable for wetting agents and consistency regulators. It is used in cream, lotion, toothpaste and shaving cream. It also applies to hair products that are not washed, giving hair a filamentous luster. Polyethylene glycol (Mr>2000) with relatively high molecular weight is suitable for lipstick, deodorant stick, soap, shaving soap, foundation and cosmetics. In the cleaning agent, polyethylene glycol is also used as suspension and thickener. In the pharmaceutical industry, it is used as a matrix for ointment, emulsion, ointment, lotion and suppository. Polyethylene glycol (such as polyethylene glycol NF, do Chemical Co.) that is commercially available for food and drug use is more suitable for cosmetic use. The application of methoxy polyethylene glycol and polypropylene glycol is similar to that of polyethylene glycol.
Polyethylene glycol is a non-ionic water-soluble polymer. It can be compatible with many substances with high polarity. It has poor compatibility with low polar substances and good compatibility with polyethylene glycol with low molecular weight. Peg can be compatible with protein, oxidized starch, nitrocellulose, polyvinyl acetate and zein. It is insoluble with beeswax, castor oil, gelatin, Arabic gum, mineral oil, olive oil and paraffin.
|Specifications||Appearance（25℃）||ColorandlustrePt-Co||HydroxylvaluemgKOH/g||Molecular weight||Solidification point℃||Water content（%）||PH value1%Aqueous solution）|
|PEG-300||Colorless transparent liquid||≤20||340~416||270~330||—||≤0.5||5.0～7.0|
Remarks: our company also provides various types of PEG series products.