Polyester plasticizers have strong polarity, affinity and the characteristics of other liquid plasticizers, when polyester plasticizers can attract and fix the surface migration of other plasticizers to PVC products, so, Polyester plasticizers are considered as permanent plasticizers. Polyester plasticizers can be used in various PVC products, especially as indispensable processing aids for high-grade PVC products. So what role can polyester plasticizers play in PVC materials?
1. Used in rubber products, it can endow rubber with heat resistance, oil resistance, swelling resistance and migration resistance, and can improve the processing performance of rubber compounds. Such as reducing the viscosity of the rubber compound, improving the resilience and elongation of vulcanization, and reducing the tensile strength and tear strength of the rubber compound, it is often used in styrene-butadiene rubber and nitrile rubber products.
2. In the EVA-VC graft copolymer resin, polyester plasticizer can be used as a hard modifier, used in the formulation of PVC doors, windows and other profiles, adding 6~10 parts of polyester plasticizer as a After additives, its products have excellent weather resistance and impact resistance;
3. In soft PVC products, the added amount can reach 20%~70%. Using polyester plasticizer to produce special nitrile rubber powder can be used as a modifier for PVC, ABS resin, phenolic resin, etc., which can increase material toughness and improve cold shock resistance. Nitrile powder produced by polyester plasticizer is an ideal raw material for making oil-resistant products.
4. For PVC modifier, the produced PVC modifier can be used in rigid PVC formulations, which can improve the brittleness of PVC resin and have an excellent toughening effect. Polyester plasticizers are used in PVC materials, with excellent processing performance and scratch resistance, especially suitable for various plastic products that are resistant to oil and water.