Selection of plastic materials

In today's society, there are tens of thousands of types of resins that have been reported, and no fewer than a thousand types have been industrialized. The selection of plastic materials is to choose a suitable one among the many resin varieties. It seems that there are many types of plastics for us to choose from, but in fact, not all resin varieties have obtained specific applications. The selection of plastic materials we are referring to is not an endless choice, but among the commonly used resin varieties. Optional.

Principles for the selection of plastic materials:

1. Adaptability of plastic materials

A, performance comparison of various materials

B, Conditions for not choosing plastic

C, and suitable conditions for the selection of plastics.

2. Use performance of plastic products

Suitable conditions for plastic products

A, the force of plastic products

B, electrical properties of plastic products

C, dimensional accuracy requirements of plastic products

D, the permeability requirements of plastic products

E, the transparency requirements of plastic products

F, the appearance requirements of plastic products

The use environment of plastic products

A, ambient temperature

B, environmental humidity

C, contact medium

D, ambient light, oxygen and radiation

3. Processing performance of plastics

A, the processability of plastics

B, the processing cost of plastics

C, plastic processing waste

4. The cost of plastic products

The price of plastic raw materials

The service life of plastic products

Maintenance cost of plastic products

Source of plastic raw materials

In the actual selection process, some resins are very close in performance.

The choice of which is more appropriate requires consideration of multiple factors and repeated weighings before it can be determined. Therefore, the selection of plastic materials is a very complicated task, and the rules that can be followed are not very obvious. One thing needs to remind everyone to pay special attention. The performance data of plastic materials quoted from various books and periodicals are measured under specific conditions. These conditions may be quite different from the actual working conditions. If they do not match, the index data should be replaced with performance under actual usage conditions or re-measured according to actual conditions.