Formulation application of polyester plasticizer in PVC plastic products

Polyester plasticizer is a polar polymer with good compatibility with PVC. It can be used in PVC formulations to make PVC plasticization time different in advance. As a formula and auxiliary agent, It is often used in combination with DOP and epoxidized soybean oil. Due to the strong polarity of polyester plasticizer, the affinity with DOP in the formulation is also related to the properties of other liquid plasticizer products. The agent can be used in the PVC product to attract and fix other plasticizers without migrating to the surface of the PVC product. Therefore, the polyester plasticizer has the name of permanent plasticizer, and the polyester plasticizer can be used for all kinds of PVC. An indispensable processing aid in products, especially in PVC high-grade products.

Polyester plasticizer can be used in PVC products, especially as high-grade PVC additives, widely used in oil-resistant cables, gas pipes, waterproof coils, artificial leather, shoe materials, high temperature resistant wire coatings, water tank sealing strips, various equipments. (including refrigeration equipment, motor vehicles) gaskets, moldings; indoor high-grade decorations; electrical tape; oil-resistant and gasoline-resistant special products. In the case of food contact, packaging films, beverage hoses, dairy machinery and cap gaskets are included.

Polyester plasticizer is used in rubber products, which can impart heat resistance, oil resistance, swelling resistance and migration resistance to rubber. It can improve the processing performance of rubber compound, such as reducing the viscosity of rubber compound and improving the resilience of vulcanization. And elongation, the tensile strength and tear strength of the rubber decreased 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 for PVC door, window and other profile formulations, adding 6~10 parts of polyester plasticizer as an auxiliary agent. After that, the weather resistance and impact of the product are excellent; the polyester plasticizer can be added in the soft PVC product by 20% to 70%. It uses polyester plasticizer to produce special nitrile rubber powder, which can be used as a modifier for PVC, aBS resin, phenolic resin, etc., which can increase material toughness and improve cold impact.

The nitrile powder produced by the polyester plasticizer is an ideal raw material for the manufacture of oil-resistant products. The polyester plasticizer is used for the PVC modifier, and the PVC modifier produced is used in the rigid PVC formulation to improve the PVC. The brittleness of the resin provides excellent toughening effect. Polyester plasticizer is used in PVC materials and has excellent processing properties and scratch resistance. It is especially suitable for various plastic products resistant to oil and water.

In the process of using PVC, the polyester plasticizer must completely absorb the PVC resin and the liquid plasticizer (DOP) and then add the polymer polyester plasticizer. The specific operation method is to completely absorb the PVC in the mixer. When the plasticizer is in the form of a dry powder, a 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 result in incomplete PVC plasticization, product processing properties and PVC products. The characteristics will drop.

The effect of adding DOP to the formulation is to synergize with the polyester to enhance the performance of the PVC product. The polyester plasticizer can play an irreplaceable role in improving the quality of the product. When the amount is more than 15 parts in the formulation, the polyester plasticizer can greatly improve the properties of the product.

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