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PVC, PC, PET stretch film as the difference between the membrane switch
2017-06-26 11:01:56

 PVC, PC, PET stretch film as the difference between the membrane switch

 
PVC stretch film(polyvinyl chloride)
Advantages: low price, resistance to chemical corrosion and excellent insulation performance
Disadvantages: low temperature (60 ℃ or so), poor tensile resistance, wear resistance is poor
Application: plate type panel, should not be used in thin film switch and touch panel applications: plate type panels, should not be used in thin film switch and touch panel type.
PC stretch film(polycarbonate)
Advantages: ① high temperature (-30 ℃ ~ 130 ℃ temperature range) when the temperature or temperature changes suddenly PC film changes little
② good mechanical properties, PC film has a high impact resistance and high elasticity, the yield point force of about 60N / mm2, is the strongest impact of today's plastic
③ processing adaptability, in its surface can suppress a different texture, improve the appearance of the material state.
④ chemical resistance of weak acid weak alkali alcohols and alcohol ethers, in addition, PC film also has high dielectric strength, non-directional, high degree of clarity and low degree of atomization.
Application: PC film for all kinds of signs film panels and other occasions, affordable, is the most common application of the material.
PET stretch film(polyester) film
Advantages: PET film has a good switch key life and excellent corrosion resistance wear resistance, excellent insulation performance.
Disadvantages: price slightly higher than the PC panel, not anti-ultraviolet.
Applications: Requires higher instrumentation and home appliances panels.