丙二醇别名是丙烯甘醇, 1,2丙二醇。丙二醇在常态下为无色粘稠液体，近乎无味，细闻微甜。丙二醇可的应用很广泛，能够用作不饱和聚酯树脂的原料，在化妆品、牙膏和香皂中可与甘油或山梨醇配合用作润湿剂。在染发剂中用作调湿、匀发剂，也用作防冻剂，还用于玻璃纸、增塑剂和制药工业。

Propylene glycol, also known as propylene glycol, is 1,2-propanediol. Propylene glycol is a colorless viscous liquid under normal conditions, almost odorless, and slightly sweet upon closer inspection. Propylene glycol has a wide range of applications and can be used as a raw material for unsaturated polyester resins. It can be used in cosmetics, toothpaste, and soap as a wetting agent in combination with glycerol or sorbitol. It is used as a moisture regulator and hair stabilizer in hair dyes, as well as an antifreeze. It is also used in glass paper, plasticizers, and the pharmaceutical industry.

丙二醇是不饱和聚酯、环氧树脂、聚氨酯树脂、增塑剂、表面活性剂的重要原料，这方面的用量约占丙二醇总消费量的45%左右，这种不饱和聚酯大量用于表面涂料和增强塑料。

Propylene glycol is an important raw material for unsaturated polyester, epoxy resin, polyurethane resin, plasticizer, and surfactant, accounting for about 45% of the total consumption of propylene glycol. This unsaturated polyester is widely used in surface coatings and reinforced plastics.

丙二醇的粘性和吸湿性好，在食品、医药和化妆品工业中广泛用作吸湿剂、抗冻剂、润滑剂和溶剂。在食品工业中，丙二醇和脂肪酸反应生成丙二醇脂肪酸酯，主要用作食品乳化剂；丙二醇是调味品和色素的优良溶剂。

Propylene glycol has good viscosity and moisture absorption, and is widely used as a hygroscopic agent, antifreeze, lubricant, and solvent in the food, pharmaceutical, and cosmetics industries. 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 seasoning and coloring.

由于毒性低，在食品工业中用作香料、食用色素的溶剂。丙二醇在医药工业中常用作制造各类软膏、油膏的溶剂、软化剂和赋形剂等，在医药工业中用作调合剂、防腐剂、软膏、维生素、青霉素等的溶剂。由于丙二醇与各类香料具有较好互溶性，因而也用作化妆品的溶剂和软化剂等等。

Due to its low toxicity, it is used as a solvent for spices and food coloring in the food industry. Propylene glycol is commonly used in the pharmaceutical industry as a solvent, softener, and excipient in the manufacture of various ointments and ointments. It is also used as a solvent for adjuvants, preservatives, ointments, vitamins, penicillin, and other substances in the pharmaceutical industry. Due to its good solubility with various spices, propylene glycol is also used as a solvent and softener in cosmetics.

丙二醇还用作烟草增湿剂、防霉剂，食品加工设备润滑油和食品标记油墨的溶剂。丙二醇的水溶液是有效的抗冻剂。也用作烟草润湿剂、防霉剂、水果催熟防腐剂、防冻液和热载体等。

Propylene glycol is also used as a humidifier and mold inhibitor for tobacco, as well as a solvent for lubricating oil in food processing equipment and food labeling inks. The aqueous solution of propylene glycol is an effective antifreeze. It is also used as a tobacco wetting agent, mold inhibitor, fruit ripening preservative, antifreeze, and heat carrier.