6051 聚酰亚胺薄膜（带）
标准号：JB/T2726-1996
适用范围：该聚酰亚胺薄膜是采用“流涎法”生产的，它具有耐高温，耐辐射和优良的介电性能。适用于H级电机、电器绝缘以及其它用途的电工绝缘材料。
一、技术要求：
1、外观：薄膜表面平整光洁，不应有折皱、撕裂、颗粒、气泡、针孔和外来杂质等缺陷，边缘整齐无破损。薄膜成卷供应。
2、尺寸：
2.1 厚度与允许偏差：推荐厚度，也可根据用户要求供应
| 标准厚度 | 25μm | 40μm | 50μm | 75μm | 100μm | 125μm | 175μm | 200μm |
| 允许偏差 | 2.5 | 4 | 5 | 7.5 | 8 | 8 | 8 | 8 |
| -2.5 | -4 | -5 | -7.5 | -7 | -8 | -8 | -8 |
2.2 宽度：薄膜宽度不小于250毫米，偏差±1.6[毫米。根据用户的需要可栽制不同规格的带。
2.3 长度：根据用户要求供应。
3、性能要求
序号 | 项目 | 单位 | 指标值 |
| 25μm | 40μm | 50μm | 75μm | 100μm | 125μm | 175μm | 200μm |
1 | 密度 | kg/m3 | 1420±20 |
2 | 抗张 | 纵向横向 | MPa | ≥150 ≥130 | ≥135≥115 |
3 | 延伸 | 纵向横向 | % | ≥60 |
4 | 热收缩率, 150℃ 400℃ | % | ≤1.0 ≤3.0 |
5 | 介电强度 | 平均值 | MV/m | ≥150 | ≥120 |
| 特别值 | ≥100 | ≥80 |
6 | 表面电阻 ,200℃ | Ω | ≥1.0X1013 |
7 | 体积电阻 ,200℃ | Ω·m | ≥1.0X1010 |
8 | 相对介电常数,48-62Hz | — | 3.5±0.4 |
9 | 介电损耗因数 48-62Hz | — | ≤4.0X10-3 |
10 | 长期耐热温度 | — | ≥180 |
Polyimide film (tape) 6051
Voluntary standard: JB/T2726-1996
Applicable Range: The polyimide film is manufactured with the raw materials of pyromellitic dianhydride and 4,4-diaminodiphenyl ether synthetic resin, and adopted with 'doctor-blading process'. It can resist high temperature and radiation as well as possess excellent dielectric performance and physical performance. It is applicable to motor Grade H, electric appliance insulation, and the electric insulating materials for other purposes.
1. Technological requirement:
1.1 Appearance: Film surface is smooth, bright and clean. It shall have no defects, such as folding, tearing, particulate, air bubble, pinhole and any external impurity. Its edges shall be orderly and have no breakage. And the film is provided in rolls.
1.2 Dimension
1) Thickness and allowable deviation: see the recommended thickness in Table One. The products with other thickness can be supplied according to the requirements of customer.
Table One
| Standard Thickness | 25μm | 40μm | 50μm | 75μm | 100μm | 125μm | 175μm | 200μm |
| Allowable Deviation | 2.5 | 4 | 5 | 7.5 | 8 | 8 | 8 | 8 |
| -2.5 | -4 | -5 | -7.5 | -7 | -8 | -8 | -8 |
2) Width and length: supplied according to requirements of customer.
3) Performances shall conform to the stipulations in Table Two.
Table Two
No | Index Description | Unit | Index Value |
| 25μm | 40μm | 50μm | 75μm | 100μm | 125μm | 175μm | 200μm |
1 | Density | kg/m3 | 1420±20 |
2 | Tensile strength | Longitudinal
Transverse | MPa | ≥150 ≥130 | ≥135≥115 |
3 | Elongation | Longitudinal
Transverse | % | ≥60 |
4 | Heat contraction rate, 150℃ 400℃ | % | ≤1.0 ≤3.0 |
5 | Electrical operating
Frequency intensity | Average Value | MV/m | ≥150 | ≥120 |
| Specific Value | ≥100 | ≥80 |
6 | Surface resistivity at ,200℃ | Ω | ≥1.0X1013 |
7 | Volume resistivity at ,200℃ | Ω·m | ≥1.0X1010 |
8 | Relative Dielectric Constant,48-62Hz | — | 3.5±0.4 |
9 | Dielectric Loss Factor 48-62Hz | — | ≤4.0X10-3 |
10 | Long-term Heat-resistance Temperature Index | — | ≥180 |
2. Packing, mark, storage and transportation
2.1 The film shall be provided in rolls and wound around pipe core, each roll is well packed and sealed with plastic bag to be placed into dry and clean box.
