In the field of PVC processing, film, pipe, and profile are the three core product categories. Due to differences in their molding processes, usage scenarios, and performance requirements, there are refined requirements for the adaptability of processing aids. Acrylic Processing Aid (APA) has become an indispensable key material in the production of three types of products due to its core advantages of optimizing melt flowability, improving product surface quality, and enhancing processing stability.

However, the processing characteristics and performance requirements of different products vary significantly. If the wrong choice is made, it can lead to low processing efficiency, frequent product defects, and other problems. Therefore, the correct choice is very important.

For thin films, low molecular weight and high fluidity grade models should be selected. This type of ACR additive can quickly integrate into polymer melts, effectively reducing melt viscosity and minimizing film thickness deviation caused by uneven melt flow during extrusion

For the application of pipes, the core direction of selection is the use of ACR processing aids with medium to high molecular weight and melt strength enhancement. This type of additive can effectively enhance the elasticity and strength of polymer melts, avoiding problems such as uneven wall thickness and inner wall collapse caused by the weight of the melt during extrusion.

For profiles, ACR processing aids with medium molecular weight, fluidity, and melt strength should be selected.

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