Engineering plastics can be used as engineering materials and substitute for metals to make machine parts. Engineering plastics have excellent comprehensive properties, such as high rigidity, small creep, high mechanical strength, good heat resistance, good electrical insulation, which can be used in harsh chemical and physical environment for a long time, and can replace metal as engineering structure data, but the price is expensive and the output is small.
How to choose suitable engineering plastics
So how can we choose the right engineering plastics for ourselves?
Step 1: understand the classification of engineering plastics
Engineering plastics are divided into high-temperature high-grade engineering plastics and medium temperature general engineering plastics. First of all, we need to determine what type of engineering plastics we need, and then we need to select the engineering plastics that are suitable for us from a large category of engineering plastics
Step 2: understand the varieties of engineering plastics
High temperature advanced engineering plastics include: PBI, PI, Pai, PPS, peek, Pei, PPSU, PSU, PVDF, PTFE, semitron ESD, MC antistatic nylon, FR4 / Stone
Medium temperature general engineering plastics include: PA, POM, pet, PC, PE-UHMW, polyurethane
Step 3: analysis of engineering plastics performance
PBI is the engineering thermoplastic with the best performance at present. It can be used as the final processing plan when other plastic materials can not meet the requirements
PI has good comprehensive performance, which can meet the application requirements of low wear and short life in harsh environment.
PPS, which fills the gap between the specification of thermoplastic materials (such as PA, POM, pet, etc.) and the price and performance of high-end advanced engineering plastics
Different environments have different demands for engineering plastics. Generally speaking, PBI is the best choice, of course, the best is not necessarily the most suitable, the most suitable is the best. Therefore, we should stop the corresponding choice according to the characteristics of each engineering plastics. PPS should be a better choice!
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