本產(chǎn)品是由經(jīng)化學(xué)處理的電工用無堿玻璃纖維布為基材,以環(huán)氧樹脂作為粘合劑經(jīng)熱壓而成的層壓制品,高溫下機械強度高,高濕下電氣性能穩(wěn)定性好。適用于機械、電氣及電子等領(lǐng)域。
2、技術(shù)要求2.1 外觀
序 號
No.
|
項 目
Item
|
單 位
Unit
|
試驗方法
Testing Method
|
指 標(biāo)
Indication
|
物 理 性 能 Physical Properties | ||||
1 | 密度Density | g/cm3 | GB/T5130 | ≥1.8 |
2 |
玻璃纖維含量
Glass Fibre Content
|
% | —— | ≥60 |
3 |
吸水性(10mm)
Water Obsorption
|
mg | GB/T5130 | ≤34 |
4 |
熱膨脹系數(shù)
Thermal Expansion Coefficient
|
1/℃ | GB/T1036 | 11.1×10-6 |
5 |
導(dǎo)熱系數(shù)
Coefficient of Heat Conductivity
|
w/m.k | —— | 0.46 |
機 械 性 能 Mechanical Properties | ||||||
6 |
垂直層向
彎曲強度
Flexural Strengthat perpendicular to lamination
|
常態(tài)(23+2)℃
Under normal
|
MPa | GB/T5130 | ≥410 | |
熱態(tài)(150+5)℃
At heat
|
MPa | ≥240 | ||||
7 |
彎曲彈性模量
Modulus of Elasticity in Flexure
|
MPa | ≥24900 | |||
8 |
壓縮強度
Compressive strength
|
垂直層向
At perdicular lamination
|
MPa | ≥350 | ||
平行層向
At parallel to lamination
|
MPa | ≥200 | ||||
9 | 拉伸強度Tensile strength | 縱向Lengthwise | MPa | ≥314 | ||
橫向Crosswise | ≥300 | |||||
10 |
沖擊強度
(簡支梁)
Impact strength charp
|
(無缺口)
No notch
|
縱向Lengthwise | kJ/ m2 | ≥160 | |
橫向Crosswise | ≥120 | |||||
(缺口)
Notched
|
縱向Lengthwise | ≥40 | ||||
橫向Crosswise | ||||||
11 | 粘合強度 Bonding strength | N | Q/JBQP51 | ≥7660 | ||
12 |
平行層向剪切強度
Shear strength at parallel to lamination
|
MPa | GB/T5130 | ≥30 | ||
13 | 洛氏硬度 Rochwell strength | HRM | GB/T9342 | ≥115 |
電 氣 性 能 Dielectric Properties | ||||
絕緣電阻
Insulation
Resistance
|
常態(tài)下 Under normal | MΩ | GB/T5130 | ≥1.0×106 |
浸水(24+1)h后
After Immersion for24+1h
|
≥5.0×104 | |||
電氣強度
(于90℃+2℃變壓器油中1min)
Dielectric strength in transformer oil at 90℃ for 1 min
|
kv/mm | ≥14.2 | ||
平行層向耐電壓
(于90℃+2℃變壓器油中1min)
Proof voltage in transformer oil at 90℃ for 1 min
≤194
|
KV | ≥45 | ||
介質(zhì)損耗因數(shù)(于浸水后,1MHz時)
Dielectric loss factor after immersion at 1MHz
|
≤0.04 | |||
介質(zhì)常數(shù)(于浸水后,1MHz時)
Dielectric loss Constant after immersion at 1MHz
|
≤5.5 | |||
表面電阻率
Surface Resistivity
|
常態(tài)Under normal | MΩ | GB/T1410 | ≥1.0×107 |
浸水(23+2℃/24h)
After Immersion of 23+2℃ for 24th
|
≥1.0×105 | |||
體積電阻率
Volume Resistivity
|
常態(tài) Under normal | MΩ.m | ≥1.0×105 | |
浸水(23+2℃/24h)
After Immersion of 23+2℃ for 24th
|
≥1.0×103 | |||
相比電痕化指數(shù)
Comparative Trackling Index
|
GB/T4207 | ≥200 |
耐 熱 性 能 Thermal Properties | |||
玻璃化轉(zhuǎn)變溫度Tg
Glass Transition Temperature
|
℃ | IEC61006 | ≥172 |
熱壓收縮率
Reduction rate of Heat press
|
% | 參考ASTMD621 | ≤0.40 |
溫度指數(shù) Thermal Index | GB/T11026.1 |
≥155
|
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