Propylene glycol is actually a kind of chemical reagent. This kind of reagent is very strange to many people. In fact, its use is very wide. For example, it can be found in cosmetics. Women who love beauty can’t do without cosmetics. Because people are now healthy. The consciousness is very strong, so generally do not use some cosmetics that are not effective or harmful to the skin, so what are the functions and effects of propylene glycol?
First, what are the effects and effects of propylene glycol? Humectants. The moisturizing mechanism is the same as glycerin, but it is not as sticky as glycerin. Antifreeze. Lowering the crystallization point of water makes it less prone to freezing when the product is at sub-zero temperatures to avoid stability problems. Permeation enhancer. Propylene glycol is used as a penetration enhancer to enable better transdermal absorption of the active ingredients in the product. It is usually used in combination with oleic acid or azone, and it is widely used.
Second, propylene glycol is used as a raw material for resins, plasticizers, surfactants, emulsifiers, and demulsifiers, and propylene glycol can also be used as an antifreeze and a heat carrier. Propylene glycol is an important raw material for unsaturated polyester, epoxy resin and polyurethane resin. The amount of this is about 45% of the total consumption of propylene glycol. This unsaturated polyester is widely used in surface coatings and reinforced plastics. Propylene glycol used as carrier solvent; wetting agent; humectant; anti-caking agent; antioxidant; tissue improver; surfactant; stabilizer; thickener; dough conditioner; emulsifier; flavoring agent; Agent. GB2760～96 are listed as food processing aids.
What are the functions and effects of propylene glycol? Propylene glycol is mainly used as a solvent for various spices, pigments, preservatives, extraction solvents for vanilla beans, roasted coffee grains, natural flavors, etc. Moisturizing and softening agents for candy, bread, packaged meat, cheese, etc. It can also be used as a mold inhibitor for noodles and stuffing cores. Adding 0.006% to the soymilk can make the flavor unchanged during heating, and make a white and shiny packaged tofu, which is bulky when fried. Propylene glycol is an intermediate of the fungicide difenoconazole. Propylene glycol is used as a solvent to dissolve food additives such as preservatives, pigments, antioxidants and other water-insoluble food additives, and then added to foods; it has strong hygroscopicity and has moisturizing and anti-freezing effects on foods. China’s regulations can be used for pastry, the maximum use is 3.0g / kg.