Describe the selection conditions of plastic processing modifiers

1. It has moderate compatibility with PVC, the compatibility is too small, it can not be evenly dispersed, it is difficult to improve the processing performance and improve the impact strength. If the compatibility is too large, it will play the role of plasticizer, it is difficult to improve the impact strength. ;

2. The glassing temperature (Ta) of the processing modifier is low, which can improve the low temperature impact strength of the polyvinyl chloride;

3, high molecular weight and mild cross-linking, can enhance the enhancement effect;

4. No significant effect on the apparent properties and physical and mechanical properties of PVC;

5, good weather resistance, small expansion of the die;

6, easy to blend with the resin, preferably with PVC and similar shape and viscosity.