PVC should be added with 1% to 5% processing aids of PVC resin in the process of processing. ACR is the most widely used processing aid. The processing method has been widely used. Regarding the mechanism of action of ACR as a processing aid to modify PVC, the general view is that ACR adheres to the PVC resin particles through longer molecular chains, transfers external heat and shear force to the resin, and promotes its melting and plasticization. , Reduce the temperature of the processing process, increase the melt strength, improve the appearance quality of the product, and at the same time do not reduce the rigidity of rigid PVC.

1. It has good compatibility with PVC, good dispersibility, and is entangled with the PVC molecular chain, which promotes the melting and plasticization of PVC, effectively reduces the melting temperature of PVC, and improves the product on the basis of small energy saving. weather resistance;

2. It can change the melt rheological behavior of PVC materials, improve the fluidity of PVC materials, so as to make it easier to form and extrude, and to ensure the stability of long-term processing and forming;

3. It can improve the melt strength of PVC materials, avoid melt fracture, solve surface problems such as shark skin, and improve the internal quality and surface gloss of products;

4. It can effectively prevent pressure fluctuations and flow scars caused by extrusion during extrusion and injection molding, and effectively avoid surface problems such as ripples and zebra crossings;

5. It can improve the surface gloss of the product. Due to the uniform plasticization, it can help to improve the mechanical properties of the product such as tensile strength, impact strength, elongation at break and so on;

6. It can significantly reduce the deposition of various additives in PVC products such as stabilizers, pigments, calcium powder, etc. on the surface of the products.

7. The foaming regulator can effectively adjust the cell density and size, and can greatly improve the melt strength of the PVC material, thereby effectively wrapping the foaming gas, forming a uniform honeycomb structure, preventing the gas from escaping, and increasing the density of the product. decline;

8. Good metal peelability, because it is a polymer material, it will not cause problems such as precipitation like lubricants.

9. Improve the consistency of the quality of PVC products, such as appearance gloss, tensile strength, impact strength and elongation at break, etc.

10. Effectively prevent surface defects such as silver wires due to pressure fluctuations and flow scars caused by extrusion during extrusion and injection molding.

11. Significantly reduce the deposition of various additive components such as stabilizers and pigments on the surface of processing machinery.