Application of propanediol in jinhao chemical industry co

use

1. Propanediol is an important raw material of unsaturated polyester, epoxy resin, polyurethane resin, plasticizer, surfactant, which accounts for about 45% of the total consumption of propanediol. This unsaturated polyester is widely used in surface coatings and reinforced plastics. Propanediol has good viscosity and hygroscopicity, and is non-toxic, so it is widely used as hygroscopicity agent, antifreeze agent, lubricant and solvent in food, medicine and cosmetics industry. In the food industry, propylene glycol and fatty acid reaction to produce propylene glycol fatty acid ester, mainly used as food emulsifier; Propanediol is a good solvent for flavoring and pigment. Because of its low toxicity, it is used in food industry as solvent for flavor and food pigment. Propanediol is often used in the pharmaceutical industry as a solvent, softener and excipient for making various kinds of ointments and ointments, and as a solvent for mixing agents, preservatives, ointments, vitamins and penicillin in the pharmaceutical industry. Because propanediol and all kinds of spices have good compatibility, so it is also used as cosmetics solvent and softener and so on. Propylene glycol is also used as tobacco humidifier, fungicide, food processing equipment lubricating oil and food labeling ink solvent. The aqueous solution of propanediol is an effective antifreeze agent. It is also used as tobacco wetting agent, mildewproof agent, fruit ripening preservative, antifreeze and heat carrier.

2. Used in organic synthesis, as solvent, dehydrating agent, plasticizer, antifreeze, gas chromatographic fixative.

3. Common organic synthetic raw materials used in the manufacture of unsaturated polyester resin. It can also be used as emulsifier, preservative and antifreeze. It is also used to manufacture alkyd resin, polypropanediol, plasticizer, surfactant and lubricant. Due to its good hygroscopicity and low toxicity, it has been used in the pharmaceutical industry as a solvent for blending agents, preservatives, ointments, ointments, pills and vitamins, as well as as a softener and excipient. Used in the food industry as a solvent for spices, condiments and food pigments. It is also used as tobacco humidifier, mildew inhibitor, fruit ripening preservative, coating film forming agent, antifreeze and heat transfer medium. It is often used as a substitute for ethanol and glycerin, and can be used as a wetting agent with glycerin or sorbitol in toothpaste and cosmetics.