BOPET film for membrane switch 6027

BOPET film for membrane switch 6027 Type: 6027Item:PET film for membrane switchThermal class:EGauge(μm):75-250Characteristics:Low shrinkage,flat,strong adhesion Usage:Membrane switch and flexible printed circuit board base ItemUnitIndexTest methodThicknessµm75100125175GB12802.2-2004Deviation of thickness%±3±3±3±4Tensile strengthMDMpa≥150≥150≥140≥140GB12802.2-2004TDElongation at breakMD%≥80≥80≥80≥80GB12802.2-2004TDHeat shrinkage 150,30minMD%≤0.8≤0.8≤0.8≤0.8GB12802.2-2004TD≤0.6≤0.6≤0.6≤0.6Modulus of elasticityMDMpa≥4000GB/T 2658-1995TD≥4500Wetting tensionmN/m≥52GB/T 13541-1992Electrical strengthV/µm≥105≥90≥80≥69GB12802.2-2004Volume resistivityΩ.m≥1×1014GB12802.2-2004Relative dielectric constant 50Hz2.9 3.4GB12802.2-2004Dielectric loss tangent 50Hz≤3×10-3GB12802.2-2004