pet 脱模剂是介于模具与制品之间的功能性物质，在橡胶、塑料制造工业中， 制造模型产品时， 为了脱模、提高生产效率、延长模具使用寿命， 同时使产品光洁、尺寸合格、减少废品， 而需使用的必不可少的一种助剂。其主要功能是使脱模操作轻而易举，防止强行取出对产品造成的损伤。
Pet demoulding agent is a functional substance between the mould and the product. in the rubber and plastic manufacturing industry, it is necessary to use an auxiliary agent in order to demould, improve production efficiency, prolong the service life of the mould, at the same time make the product clean, qualified and reduce waste products. Its main function is to make the demoulding operation easy and to prevent the damage caused by forcible removal of the product.
脱模剂的隔离性取决于其表面性质，其显著特点就是临界表面张力小，很难被液体润湿，正因如此，才能达到脱模的作用。PET脱模剂指用于防止PET产品与模具表面粘连，并能使之顺利出模而不致撕裂的一类物质。
The isolation of release agent depends on its surface properties. Its remarkable feature is that the critical surface tension is small, and it is difficult to be wetted by liquid. Therefore, the release effect can be achieved. PET demoulding agent is a kind of material used to prevent the adhesion of PET products to the surface of the die and to make it smooth without tearing.