The core role of PVC foaming regulator in the processing is mainly reflected in the following aspects:
1. Enhance the strength and stability of the melt
Improve the cohesion and strength of PVC melt, enabling the melt to effectively encapsulate foaming gas, prevent bubble coalescence, collapse or rupture, ensure uniform and dense cell structure, and thereby enhance the density and mechanical properties of the product.
2. Optimize the pore structure
By regulating the viscoelasticity of PVC melt, maintaining the morphological stability of the pores during expansion, reducing gas escape, forming independent and uniform microporous structures, and enhancing the dimensional stability and impact resistance of the product.
3. Promote plasticization and processing fluidity
Accelerate the plasticization process of PVC resin, reduce processing temperature, adjust molecular chain fluidity, reduce intermolecular friction, improve melt ductility, make it easier to fill molds with materials, and enhance surface smoothness.
4. Improve surface quality and glossiness
Promote the uniform dispersion of foaming agents and other additives, reduce surface defects, make the appearance of foam boards, pipes and other products smooth and delicate, and assist in improving overall mechanical properties.
5. Collaborate with other additives to optimize performance
When used in conjunction with heat stabilizers, adjust the decomposition temperature of foaming agents to avoid foam breakage caused by local degradation or uneven plasticization of the melt, ensuring stable production processes.
Post time: Jun-17-2025
