On the conventional PVC foam board extrusion line, the gas generated by the decomposition of the foaming agent will rapidly expand. If the strength of PVC melt is not sufficient, the cell walls will be pulled apart, gas will escape, causing the board to collapse and the density to remain high. The foaming regulator of HTX CHEMICAL not only has high viscosity, but also has stronger melt strength.

The core of foaming regulators (ACR class) is a long chain of highly entangled acrylic ester. During the extrusion process, it forms physical cross-linking with PVC molecular chains to improve melt elasticity; By utilizing the buffering effect of the viscosity temperature curve, the foaming window is extended to reduce collapse caused by rapid cooling shrinkage.

Choosing the right foaming regulator (Acrylic processing aid)can improve the effectiveness of the produced products. If you have any questions, please do not hesitate to contact us

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Email:Lau@htxchemical.com