本产品是由经化学处理的电工用无碱玻璃纤维布为基材,以环氧树脂作为粘合剂经热压而成的层压制品,高温下机械强度高,高湿下电气性能稳定性好。适用于机械、电气及电子等领域。
2、技术要求2.1 外观
序 号
No.
|
项 目
Item
|
单 位
Unit
|
试验方法
Testing Method
|
指 标
Indication
|
物 理 性 能 Physical Properties | ||||
1 | 密度Density | g/cm3 | GB/T5130 | ≥1.8 |
2 |
玻璃纤维含量
Glass Fibre Content
|
% | —— | ≥60 |
3 |
吸水性(10mm)
Water Obsorption
|
mg | GB/T5130 | ≤34 |
4 |
热膨胀系数
Thermal Expansion Coefficient
|
1/℃ | GB/T1036 | 11.1×10-6 |
5 |
导热系数
Coefficient of Heat Conductivity
|
w/m.k | —— | 0.46 |
机 械 性 能 Mechanical Properties | ||||||
6 |
垂直层向
弯曲强度
Flexural Strengthat perpendicular to lamination
|
常态(23+2)℃
Under normal
|
MPa | GB/T5130 | ≥410 | |
热态(150+5)℃
At heat
|
MPa | ≥240 | ||||
7 |
弯曲弹性模量
Modulus of Elasticity in Flexure
|
MPa | ≥24900 | |||
8 |
压缩强度
Compressive strength
|
垂直层向
At perdicular lamination
|
MPa | ≥350 | ||
平行层向
At parallel to lamination
|
MPa | ≥200 | ||||
9 | 拉伸强度Tensile strength | 纵向Lengthwise | MPa | ≥314 | ||
横向Crosswise | ≥300 | |||||
10 |
冲击强度
(简支梁)
Impact strength charp
|
(无缺口)
No notch
|
纵向Lengthwise | kJ/ m2 | ≥160 | |
横向Crosswise | ≥120 | |||||
(缺口)
Notched
|
纵向Lengthwise | ≥40 | ||||
横向Crosswise | ||||||
11 | 粘合强度 Bonding strength | N | Q/JBQP51 | ≥7660 | ||
12 |
平行层向剪切强度
Shear strength at parallel to lamination
|
MPa | GB/T5130 | ≥30 | ||
13 | 洛氏硬度 Rochwell strength | HRM | GB/T9342 | ≥115 |
电 气 性 能 Dielectric Properties | ||||
绝缘电阻
Insulation
Resistance
|
常态下 Under normal | MΩ | GB/T5130 | ≥1.0×106 |
浸水(24+1)h后
After Immersion for24+1h
|
≥5.0×104 | |||
电气强度
(于90℃+2℃变压器油中1min)
Dielectric strength in transformer oil at 90℃ for 1 min
|
kv/mm | ≥14.2 | ||
平行层向耐电压
(于90℃+2℃变压器油中1min)
Proof voltage in transformer oil at 90℃ for 1 min
≤194
|
KV | ≥45 | ||
介质损耗因数(于浸水后,1MHz时)
Dielectric loss factor after immersion at 1MHz
|
≤0.04 | |||
介质常数(于浸水后,1MHz时)
Dielectric loss Constant after immersion at 1MHz
|
≤5.5 | |||
表面电阻率
Surface Resistivity
|
常态Under normal | MΩ | GB/T1410 | ≥1.0×107 |
浸水(23+2℃/24h)
After Immersion of 23+2℃ for 24th
|
≥1.0×105 | |||
体积电阻率
Volume Resistivity
|
常态 Under normal | MΩ.m | ≥1.0×105 | |
浸水(23+2℃/24h)
After Immersion of 23+2℃ for 24th
|
≥1.0×103 | |||
相比电痕化指数
Comparative Trackling Index
|
GB/T4207 | ≥200 |
耐 热 性 能 Thermal Properties | |||
玻璃化转变温度Tg
Glass Transition Temperature
|
℃ | IEC61006 | ≥172 |
热压收缩率
Reduction rate of Heat press
|
% | 参考ASTMD621 | ≤0.40 |
温度指数 Thermal Index | GB/T11026.1 |
≥155
|
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