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2021-10
Brief Introduction of Blister Raw Materials
Polyvinyl chloride PVC, molding temperature 65-70 ℃, cooling time 24-30 seconds, thermal distortion temperature 80-180 ℃ began to melt, amorphous polymer, shrinkage 0.2-0.6 after molding, low density characteristics make the output greater than 20%-30% of the general material. Not fragile, good toughness, high transparency, turnover, adjustable other colors.
Polyethylene terephthalate (PET): molding temperature 70-80 ° C, cooling time 14-20 seconds, thermal distortion temperature 80-180 ° C began to melt, highly crystalline polymer, smooth and glossy surface, fatigue resistance, friction resistance, dimensional stability is very good. High transparency, not easy to break the edge, is an environmentally friendly material, can be used.
Polystyrene plastic (PS): molding temperature 75-85 ℃, cooling time 14-20 seconds, thermal distortion temperature 90-150 ℃ starts to melt, tensile strength can reach more than 60Mqa, impact strength is small, wear resistance is poor, creep resistance is general, mechanical properties change greatly with temperature rise, shrinkage rate is 0.4-0.7%. Easy molding, molding baking time is relatively short, is an environmentally friendly material, can be used.
Polypropylene (PP): molding temperature 140 ℃, cooling time 24-30 seconds, thermal distortion temperature 150-220 ℃ began to melt, semi-crystalline material, it is harder than PE and has a higher melting point. The Vicat softening temperature of PP is 150 °. Due to the high crystallinity, the rigidity and scratch resistance of the surface are very good, and the shrinkage is 1.8-2.5%. Rigid toughness, high bending strength, fatigue resistance, stress cracking resistance, light weight, at high temperature 100 °-150 ° to maintain its mechanical properties.
Polyethylene terephthalate (PETG): molding temperature 70-80 ℃, cooling time 14-20 seconds, thermal distortion temperature 120-225 ℃ began to melt, highly crystalline polymer, smooth and glossy surface, fatigue resistance, friction resistance, dimensional stability is very good, high pressure wave can be directly tearing edge. High transparency, not easy to break the edge, is an environmentally friendly material, can be used.
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