2 Thermoplast
Thermoplast means the plastic which can be hard repeated after heated within specific temperature arrange, such as PE, PTFE. Thermoplast also will be classified into HC, vinyl, engineer and texture. They will be solid object after hot working moulding and its linear structure of molecule will connect as net. The molecule will dissolve after being heated again. Main thermoplast include Phonelic, oxygon, polymer, silicon, etc and recent PET. The can tolerate high temperature, won't transform after hot temperature. It's disadvantages are that the mechanical strenth is not so high,but we can strenthen it by adding filler.
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