Propylene glycol: The concept is miscible edit several substances mixed together, can be integrated with each other phenomenon. Two phenomena, for example edit oil substances added - emulsifier - after glycol polyester resin, can be miscible with water in any proportion, such as toluene. . The emulsifiers used benzene glycol manufacturers, is the simplest level of emulsified oil and oil in order to achieve a water-miscible glycol is also easy: the physical properties of the unsaturated polyester resin editing relative density of about 1.11 to 1.20, large volume shrinkage during curing, some of the physical properties of the cured resin are as follows: ⑴ heat resistance. The vast majority of the unsaturated polyester resin in a heat distortion temperature 50 ~ 60 ℃ glycol, some heat-resistant resin is up to 120 ℃. Red thermal expansion coefficient α1 of (130 ~ 150) × 10-6 ℃. ⑵ mechanical properties. Unsaturated polyester resin having a high tensile, bending, compression strength. ⑶ chemical resistance. Unsaturated polyester resin water, dilute acid, dilute alkali better performance, the performance difference between the propylene glycol fermentation resistant to organic solvents, while the chemical resistance of the resin can be with their chemical structure and geometry of the different switches, can be very differences. ⑷ dielectric properties. Unsaturated polyester resin acids good dielectric properties. Industrial grade propylene glycol | sunshine glycol | Wei Wei Connaught Chemical provided by Qingdao Sino Chemical Co. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) strong, credible, in Qingdao, Shandong and other chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wei Connaught Chemical and you hand into the brilliant, for a better future!