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.