The role of DOTP (dioctyl terephthalate) in PVC film

The role of DOTP (dioctyl terephthalate) in PVC film mainly includes improving the flexibility and durability of the material, enhancing processing performance, and reducing volatilization losses. ‌

As a plasticizer, DOTP can reduce the intermolecular forces between PVC molecular chains, lower the glass transition temperature, flow temperature, and melting point of the microcrystals contained in PVC plastic, thereby improving the plasticity of the resin, making the product softer and more resistant to low temperatures. Compared with traditional phthalates (such as DOP), DOTP has the advantages of heat resistance, cold resistance, non-volatile, anti extraction, good flexibility, and electrical insulation performance, showing excellent durability, soap water resistance, and low softness. These characteristics enable DOTP to significantly improve the quality and performance of PVC films in production. In addition, the environmental advantages of DOTP cannot be ignored. Due to the absence of phthalates, DOTP is not within the scope of the 16 phthalates containing plasticizers restricted for use in the European Union and other countries. Therefore, it is considered an excellent environmentally friendly plasticizer, which gives DOTP greater market competitiveness in today's increasingly strict environmental requirements.

In addition, the application of DOTP environmentally friendly plasticizer in PVC film also has the following specific advantages:

1、Environmental Characteristics: DOTP is a bio based plasticizer made from oil and fat, with natural environmental characteristics. It does not contain phthalates and is not within the range of 16 phthalate containing plasticizers restricted for use in the European Union and other countries
2、Thermal stability: DOTP has excellent thermal stability and can maintain stable performance in high temperature environments, making it suitable for PVC products that require high temperature resistance
3、Low tenderness and softness: DOTP can maintain excellent softness even in low temperature environments, suitable for PVC products that require cold resistance
4、Durability: DOTP exhibits excellent durability in products, able to maintain the softness and other properties of the product for a long time
5、Electrical insulation performance: DOTP has good electrical insulation performance and is suitable for electronic products and wires and cables that require high insulation.These advantages make DOTP perform well in the application of PVC film, meeting various special needs and having good market prospects.

DOTP  plasticizer