WSD plastic processing aid Introduction

  Processing aid  is a substance play a supporting role, typically having filter aid, clarification, adsorption, lubrication, stripping, bleaching, peeling, extraction solvent, with a fermentation nutrient and the like. Some for food, some used in manufacturing, and so on. PVC is a very special thermoplastic resin plastic processing aid  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. Lubricants, heat stabilizers, impact modifiers, processing aids and the like. Depending on the processing aid molecular weight, there are different functions.
  The main role of processing aids are: 1) to accelerate the Processing aid  of PVC plastics. 2) improve the rheological properties of the thermoplastic melt. 3) improve the mechanical properties of the melt under the heat elastic state. 4) improve the appearance of the quality of the products and other integrated functions. Although the addition amount of the processing aid, but the Processing aid  performance is improved PVC is very important. According to the function of the different processing aids can be divided into flux, melt rheology modifiers, lubricants and dispersing accelerator. In fact, each type of processing aids also have more than one effect. Any functionality and application results of a processing aid should depend on its chemical composition, the polymer structure, molecular weight and type of polymer matrix.