The efficiency and quality of PVC extrusion processes are heavily influenced by the choice of processing aids. Acrylic processing aids (ACR) are indispensable in this regard, offering enhanced plasticization, improved melt flow, and better surface finish. NINGBO INNO PHARMCHEM CO.,LTD. offers a range of ACR processing aids tailored for various PVC applications, and understanding how to select the right one is crucial for optimal results.

When it comes to PVC extrusion, particularly for profiles with complex cavity designs, the processing aid must ensure good flow and appropriate melt strength. Lower viscosity ACRs, typically in the range of 6-10, are often recommended as they facilitate faster plasticization and better melt flow, essential for filling intricate mold shapes. NINGBO INNO PHARMCHEM CO.,LTD. provides ACR products that meet these specifications, ensuring that manufacturers can achieve seamless extrusion of complex PVC profiles.

For PVC pipes, where a specific degree of plasticization, often around 60-70%, is required, ACRs with a low to moderate viscosity (4-10) and a moderate plasticization speed are ideal. This balance ensures thorough plasticization without causing excessive softening that could compromise the pipe's structural integrity during production or use. NINGBO INNO PHARMCHEM CO.,LTD.'s product portfolio includes options that cater to these precise requirements, supporting the production of reliable PVC piping systems.

The selection criteria extend to other PVC applications as well. For pipe fittings, which often undergo injection molding, ACRs with faster plasticizing capabilities are preferred to meet the demands of the molding cycle. Transparent PVC sheets require ACRs with low viscosity (ideally not exceeding 3.0) to maintain clarity, prevent precipitation, and ensure excellent flow. For wood-plastic composite profiles, ACRs that offer fast plasticization and good metal stripping are essential for efficient processing and high-quality finishes.

The role of ACR processing aids in improving melt strength is particularly vital for preventing issues such as melt fracture and surface imperfections like shark skin. By carefully selecting an ACR processing aid that optimizes melt strength, manufacturers can ensure smoother surfaces and better internal quality in their extruded PVC products. NINGBO INNO PHARMCHEM CO.,LTD. emphasizes the importance of this factor, offering solutions designed to improve melt strength of PVC.

Ultimately, choosing the right ACR processing aid involves matching the additive's properties – viscosity, plasticization speed, and impact modification capabilities – to the specific demands of the PVC product and processing method. NINGBO INNO PHARMCHEM CO.,LTD. stands ready to assist manufacturers in this selection process, ensuring they achieve optimal outcomes and enhance PVC plasticization for superior PVC extrusion products.