电源线路板绝缘垫片

特性property
测试方法 test method
单位 units
测试值value
比重 specific gravity
astm d792
g/cm3
1.2
平均吸水率water absorption equilibrium,24hrs
astm d570
%
0.35
伸张强度 tensile strength
astm d882
psi
8,800
极限延伸率 elongation ultimate
astm d882
%
>90
冲击强度 impact strength @ 10mils
jis-k6745
in-ibs
120
撕裂强度 tear strength propagation
astm d1922
g/mil
>30
维卡软化点 vicat softening temperature
astm d1525
℃
110
热收缩率 heat shrinkage rate
astm d1204
%
<1.0
介电强度 dielectric strength(@ 10 mils)
astm d149
v/mil
1700
体积绝缘 volume resistivity @25℃,50%rh
astm d257
ohm.m
1016
表面绝缘 surface resistivity @25℃,50%rh
astm d257
ohm
1015
ul 防火等级 ul flammability @ ≥ 10 mils
　ul bulletin94
ul94
v0
ul 防火等级 ul flammability @ ＜ 10 mils
　ul bulletin94
ul94
vtm-0
厚度公差 gaute variation
%
＞0.5 ±0.006mm
≦0.5 ±0.004mm