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What Are The Types Of Membrane Switch Materials



What are the types of membrane switch materials?

PVC PVC \ 60 ℃ \ 0.175 ~ 0.5 / smooth \ room temperature on the acid, alkali and salt stability. Good wear resistance, fire self-extinguishing, muffler shock, electrical insulation is good. Thermal stability is poor. Low common signage, panel.

Polycarbonate PC \ -60 ~ 120 ℃ \ 0.175 ~ 1.0 \ high light transmittance, low water absorption, good dimensional stability, bending, tensile, compressive strength is very superior, heat resistance cold, electricity Insulation and resistance to atmospheric aging. Poor resistance to chemical resistance, fatigue resistance is poor, easy to produce stress cracking, the output interface terminal circuit is generally made of carbon material, and there is no protective coating, by the gradual oxidation of air to form a layer, to the final lead to open circuit End of life, which is the most vulnerable to the membrane switch failure, mainly the environment decided, regardless of use or not, physical damage time is 3 to 10 years. Generally applicable to the most extensive range, in addition to meet the requirements of most of the membrane switch panel, which glossy PC high transmittance can meet the requirements with a liquid crystal display window.

Sand surface polyester (PET) \ - 30 ~ 120 ℃ \ 0.1 ~ 0.2 smooth surface good chemical resistance, insoluble in general organic solvents, alkali. With excellent mechanical properties, electrical properties, rigidity, hardness and thermoplastic plastic in the largest strength and toughness, low water absorption, wear resistance, excellent friction resistance, high dimensional stability. Tensile strength comparable to aluminum, much higher than PC, PVC. Low because the surface is difficult to process into matte type, it is more expensive texture PET film circuit is the ideal substrate. Which has a texture PET suitable for the surface requirements of a higher or have a liquid crystal display window products.

Hangzhou Kaike Electronics Co., Ltd.

Address: No. 2. Dadi Road, Haining Agricultural External Development Zone 314408,

Zhejiang, China

Contact Person: May Wong

Telephone: 86-571-86830690     Fax: 86-571-86687367

Cell Phone: 86-15158112598

Email: May@hzkaike.cn

Website:www.hzkkelec.com          

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