G-7139/7131 Technical Data Sheet
PRODUCT DESCRIPTION产品描述
G-7139/7131is a hot cure, prefilled, toughened, epoxy casting system for severe outdoor applications in medium voltage and heavy power electrical industry.Application includes outdoor electrical insulating components, bushing, insulators, all components for humid indoor medium and high voltage environments, etc., with following advantages.G-7139/7131是一种适用于严格的户外中高电压工业领域的热固化，预填充，加固型环氧灌封胶。该产品的应用范围包括户外电绝缘元件，套管，绝缘体以及各种于户外中高电压潮湿环境的元件并具有以下优点。
ü Hydrophobic transfer and recovery in outdoor casting epoxy厌水型户外浇注环氧材料
ü High toughness and crack resistance even at low temperatures即使在低温下也具有高强度和抗电压性能
ü Easy handling and long pot life at moderate temperature在中等温度下具有容易手工操作和长的操作时间
ü High stability of dielectric property even in humid condition即使在潮湿环境下也具有高的电解质稳定性
ü Excellent resistance to erosion by UV radiation对紫外辐射的优异抗腐蚀性
ü Outstanding outdoor insulating behaviour突出的户外绝缘性能
PROPERTIES OF UNCURED MATERIAL固化前材料性能
Properties性能 | Test Method 测试方法 | Resin-6029 树脂-6029 | Hardener-6020 固化剂-6-20
|
Color/Appearance 颜色/外观 | Visual 目视 | Natural viscous Liquid 自然色粘性液体 | Beige viscous Liquid 米黄色粘性液体 |
Specific Gravity比重 | ASTM D-792 | 1.75
| 1.85 |
Viscosity粘度@ 40°C, cps | ASTM D-2393 | 12,000 | 3, 000 |
Shelf life储存期, 25°C, month |
| 12 | 12 |
TYPICAL PROPERTIES OF CURED MATERIAL固化后材料典型物理性能
Property性能 | Test Method 测试方法 | Value数值 |
Specific gravity比重, g/cc |
| 1.8 |
Hardness (shore D)邵氏硬度 | shore D | 80 |
Elongation at break断裂延长率, % |
| 2 |
Tensile strength拉伸强度, MPa |
| 90 |
Tensile modulus拉伸模量, MPa |
| 10,000 |
Flexural strength绕曲强度, MPa | ASTM D790 | 160 |
Flexural modulus绕曲模量, MPa | ASTM D790 | 10,000 |
Critical stress intensity factor 临界应力强度因子, K1C, Mpa.m1/2 |
| 2.8 |
Impact strength冲击应力, kJ/m2 |
| 12 |
Glass transition temperature玻璃化转变温度, ºC |
| 110 |
Decomposition temperature分解温度, ºC |
| 350 |
Thermal conductivity热导率,w/m-k |
| 0.85 |
Coefficient of thermal expansion热膨胀系数, CTE | ASTM D3386 | 35 E-06 |
Water absorption水吸收率, % weight, 1 hour @ 100 ºC |
| 0.11 |
Flammability rating易燃等级 | UL94 | V-1 (12mm), HB (4mm) |
Dielectric constant介电常数, 50Hz, 25 -140 ºC | ASTM D150 | 4 - 4.5 |
Dissipation factor损耗因子, 50Hz, 25 -140 ºC |
| 0.01-0.11 |
Volume resistivity体电阻, ?.cm, 25 -170 ºC |
| 9.0E+15 – 1.0E+11 |
Arc resistance弧抗, seconds | ASTM D945 | 190 |
Breakdown strength失效强度, 1mm, kV/mm |
| 38 |
Track resistance抗漏电性能, CTI |
| > 600M-0.0 |
Electrolytic corrosion, Grade电解腐蚀等级 |
| A-1 |
DIRECTIONS FOR USE使用指南
Mix Ratioby Weight重量比
Resin-6029 100
Hardener-6020 100
VISCOSITY CONTRAST TABLE粘度对照表
Time时间, hours小时 | Viscosity 粘度, 25ºC, cps | Viscosity 粘度, 60ºC, cps | Viscosity 粘度, 80ºC, cps |
Initial mixed viscosity 初始混合粘度 | 10,000 | 4,000 | 2,000 |
Gel Time凝胶化时间
1 to 2 days @ 25ºC
500minutes @ 60ºC
150minutes @ 80ºC
40 minutes @ 100ºC
10 minutes @ 120ºC
6 minutes @ 140ºC
Automatic Pressure Gelation Process自动压力凝胶工艺(APG)
ü Pre-heat mold at 140-160 °C将模体预热到140-160 °C
ü Pre-heat casting components at50- 60 °C 将浇注料预热到50- 60 °C
ü Mix the casting material (resin + hardener) under vacuum for 30 minutes将浇注料（树脂和固化剂）混合并抽真空30分钟
ü Fill mold in 2 – 5 minutes填入模体2-5分钟
ü Gel in mold for 20-50 minutes @ pressure 1-3 atm在1-3大气压下在模体中凝胶20-50分钟
ü Post cure 7 hrs @130 °C or 5 hrs @140 °C在130 °C下固化7小时或在140 °C下固化5小时
Conventional Gravity Casting Process Under Vacuum常规重力真空浇注工艺
ü Pre-heat mold(treated with mold release agent)to 80- 100 °C and all casting components separately at 60- 80 °C将模体预热到80- 100 °C，各个浇注组分分别预热到60-80°C
ü Mix the casting material (resin + hardener) under vacuum for 30 minutes在真空下将浇注材料（树脂和固化剂）混合30分钟
ü Fill mold under vacuum and gel for 6-8 hrs将浇注料填入模体并凝胶6-8小时
ü Post cure 16 hrs@130°Cor 12 hrs@140°C后固化16 hrs@130°C或12 hrs@140°C
SHELF LIFE保存方法
Store at 21 - 30 ºC in a dry place. Hardener-6020 is moisture sensitive, after each partial use, purge with dry nitrogen and tightly reseal. Before use, mix and stir all components at warm in case of filler settling.保存于21- 30 ºC的干燥地方。Hardener-6020容易受潮，每次用完后应用干氮气清理干净并密封保存。在使用前，在温暖环境下搅拌混合各浇注组分以防止填充料下沉。
