Introduction and role of the principle of processing aid

PVC is a very special thermoplastic resin processing its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the process to improve its performance. Such as: lubricants, heat stabilizers, impact modifiers, processing aids and the like. Processing aids in the development and application process, according to the product ingredients be plastic processing aid  into the following broad categories: methyl methacrylate acrylate copolymer, styrene copolymer, acrylonitrile styrene, at present use the largest, the best is acrylate copolymer. The main role of processing aids are: to accelerate the process of PVC plastics. Improve the rheological properties of thermoplastic melt. Improve the mechanical properties of melt under the heat elastic state. Integrated functions such as improving the appearance of Processing aid  products. Although the addition amount of the processing aid, but the processing performance is improved PVC is very important. Role of the principle of processing aids: PVC melt due to poor ductility, easily lead to melt broken; PVC melt relaxation slow, easily lead to the product surface rough, dull and shark skin and so on. Therefore, it often requires the addition of PVC processing when processing aids to improve its melt these defects. Processing aids to improve the performance of resin processing aids, and its main role in three ways: to promote the molten resin to improve the rheological properties of melt and give the lubrication function.

Introduction and main role of plastic processing aid

plastic processing aid is a substance play a supporting role, generally have a filter aid, clarification, adsorption, lubrication, stripping, bleaching, peeling, solvent extraction, fermentation with nutrients like. Some for food, some used in manufacturing, and so on. PVC Processing aid  a very special thermoplastic resin processing its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the process to improve its performance. plastic processing aid according to the different Processing aid  weight, there are different functions. The main role of plastic processing aid are: to accelerate the process of PVC plastics; improve the rheological properties of the thermoplastic melt; improve the mechanical properties of the melt under the heat elastic state; despite add less plastic processing aid, but to improve the processing performance but PVC is very important. Pure PVC impact due to poor performance, particularly low-temperature impact performance is poor, poor weather, the application is limited in many areas. Therefore, the need to improve the impact modifier added to its toughness and weatherability.

PVC processing aid Introduction

PVC is a very special thermoplastic resin processing its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the Processing aid to improve its performance. With the rapid growth of PVC products, PVC processing aid has been widely used. The main role of PVC processing aid are: to accelerate the process of PVC plastics. Improve the rheological properties of thermoplastic melt. Improve the mechanical properties of melt under the heat elastic state. Integrated functions such as improving the appearance of quality plastic processing aid . Although the addition of a small amount of the PVC processing aid, but the performance is to improve the processing of PVC is very important due to the difference between the pure PVC impact properties, in particular poor low temperature impact properties, weather resistance is poor, the application is limited in many areas. Therefore, the need to improve the impact modifier added to its toughness and weatherability.