4 Disadvantages for the PA6 Nylon Plastics

 

1. Easy to absorb water for the PA6 Nylon Plastic. The water absorption is large, and the saturated water can reach more than 3%. To a certain extent, the dimensional stability and electrical performance are affected, especially the thickening of thin-walled parts has a greater impact; water absorption will also greatly reduce the mechanical strength of the plastic. When selecting materials, consideration should be given to the influence of the use environment and the accuracy of coordination with other components.

 

 

 

Fiber reinforcement can reduce the water absorption rate of the resin, so that it can work under high temperature and high humidity. Nylon Plastic has a very good affinity with glass fiber. It is commonly used to make combs, toothbrushes, clothes hooks, fan bones, mesh bags, fruit outer packaging bags, and so on. Non-toxic, but not long-term contact with acid and alkali. It is worth noting that after adding glass fiber, the tensile strength of nylon can be increased by about 2 times, and the temperature resistance can be improved accordingly.

 

 

2. The light fastness is poor. In a long-term high temperature environment, it will oxidize with oxygen in the air, and the color will turn brown at the beginning, and then the surface will be broken and cracked.

 

 

3. The Plastic Injection Molding Technology requirements are strict: the presence of trace moisture will cause great damage to the molding quality; the dimensional stability of the product is difficult to control due to thermal expansion; the existence of sharp corners in the product will cause stress concentration and reduce the mechanical strength; wall thickness If it is not uniform, it will cause distortion and deformation of the part; the equipment requires high precision during post-processing of the part.

 

 

4. It will swell by absorbing water and alcohol. It is not resistant to strong acids and oxidants, and cannot be used as acid-resistant materials.