Application Of Polyester Plasticizer In PVC Plastic Products
Polyester plasticizer is a polar high-molecular polymer, which has good compatibility with PVC. Adding it to the PVC formula can make the PVC plasticization time advance to varying degrees.As a formula raw material and auxiliary agent, It is often used in combination with DOP and epoxy soybean oil. Due to the strong polarity of polyester plasticizers, the affinity of DOP in the formulation is also related to the characteristics of other liquid plasticizer products. When polyester plasticizes Used in PVC products, it can attract and fix other plasticizers to the surface of PVC products, so polyester plasticizers are known as plasticizers for a long time, and polyester plasticizers can be used in various types. An indispensable processing aid in PVC products, especially in high-grade PVC products.
Polyester plasticizer can be used in PVC products, especially as an auxiliary for high-grade PVC products. It is widely used in oil resistant cables, gas pipes, waterproof coiled materials, artificial leather, shoe materials, high temperature resistant wire coatings, water tank seals, various equipment Gaskets and moldings (including refrigeration equipment and motor vehicles); high-end interior decorations; electrical tape; special products resistant to oil and gasoline. In terms of food contact, it includes packaging films, beverage hoses, dairy machinery and bottle cap gaskets. Polyester plasticizers are used in rubber products to give rubber vulcanization heat resistance, oil resistance, swelling resistance and migration resistance. It can improve the processing performance of rubber compounds, such as reducing the viscosity of rubber compounds and improving the resilience of vulcanization. And elongation, the tensile strength and tear strength of the rubber compound drop less, commonly used in styrene-butadiene rubber and nitrile rubber products.
In the EVA-VC graft copolymer resin, the polyester plasticizer can be used as a hard modifier. It is used in the formulation of profiled materials such as PVC doors and windows. Add 6-10 parts of the polyester plasticizer as an auxiliary. After that, its products have excellent weather resistance and impact resistance; polyester plasticizer in soft PVC products can be added in an amount of 20% to 70%. Specialty nitrile rubber powder is produced with polyester plasticizer, which can be used as modifier for PVC, ABS resin, phenolic resin, etc., which can increase the toughness of the material and improve the cold impact resistance. Nitrile powder produced by polyester plasticizer is an ideal raw material for the manufacture of oil-resistant products. Polyester plasticizer is used for PVC modifier, and the produced PVC modifier is used in hard PVC formula to improve PVC The brittleness of the resin plays an excellent toughening effect. Polyester plasticizers are used in PVC materials and have excellent processing properties and scratch resistance, especially suitable for various plastic products resistant to oil and water.
Polyester plasticizers must be fully absorbed by PVC resin and liquid plasticizer (DOP) during the use of PVC before adding high molecular polyester plasticizer. The specific operation method is to completely absorb PVC in the mixer When the plasticizer is dry powder, polyester plasticizer is added. If PVC resin, DOP and polyester plasticizer are added at the same time, the polyester plasticizer will first absorb DOP and other plasticizers before PVC, which will lead to incomplete PVC plasticization, product processing performance and PVC products The characteristics will be reduced. The role of adding DOP in the formula is to play a synergistic role with plasticization of polyester and improve the performance of PVC products. Polyester plasticizers can play an irreplaceable role in improving the quality of products. Adding more than 15 parts in the formula, polyester plasticizer can greatly improve the characteristics of the product.