
Functions of ACR processing aids
ACR is the most commonly used processing aid in PVC processing, and it has been widely used in the main processing methods of PVC, such as extrusion, injection molding, blow molding, blistering, and rolling.
ACR has significant efficacy. Firstly, it has good compatibility and dispersibility with PVC, and is entangled with PVC molecular chains to promote PVC melting and plasticization. Secondly, ACR can change the melt rheological behavior of PVC materials, improve their flowability, and make it easier to form and extrude, ensuring the stability of long-term processing and molding. Once again, it can improve the melt strength of PVC materials, avoid melt rupture, solve surface problems such as shark skin, and improve the internal quality and surface glossiness of products. It can also effectively prevent pressure fluctuations and flow scars caused by extrusion and injection molding. It can also improve the surface glossiness of the product, due to uniform plasticization, and can also assist in improving the mechanical properties of the product such as tensile strength, impact strength, and elongation at break; Significantly reduce the deposition of various additives such as stabilizers, pigments, calcium powder, etc. on the surface of PVC products. Improve the consistency of PVC product quality, such as appearance gloss, tensile strength, impact strength, and elongation at break. Effectively preventing surface defects such as silver wire caused by pressure fluctuations and flow scars during extrusion and injection molding. Finally, it can significantly reduce the deposition of various additive components such as stabilizers and pigments on the surface of processing machinery.
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