1. Propylene glycol is an important raw material for the synthesis of unsaturated polyester, epoxy resin, polyurethane resin, plasticizer and surfactant. Propylene glycol accounts for about 45% of the total consumption. This unsaturated polyester is widely used in surface coatings and reinforced plastics.
2. Propylene glycol has good viscosity, hygroscopicity and non toxicity, and is widely used as hygroscopic agent, antifreeze agent, lubricant and solvent in food, medicine, cosmetics and other industries.
3. In the food industry, propylene glycol reacts with fatty acids to form propylene glycol fatty acid esters, which are mainly used as food emulsifiers; Propylene glycol is an excellent solvent for condiments and pigments.
4. Used in organic synthesis, solvents, dehydrators, plasticizers, antifreezes and gas chromatography stationary solutions.
5. Common organic synthetic raw materials are used to produce unsaturated polyester resin. It can also be used as emulsifier, preservative and antifreeze. It can also be used to prepare alkyd resin, propylene glycol, plasticizer, surfactant and lubricant.
