ST-6051聚酰亞胺薄膜（帶）
ST-6051聚酰亞胺薄膜（帶）標準號：JB/T2726-1996
適用范圍：該聚酰亞胺薄膜是采用“流涎法”生產的,，它具有耐高溫,，耐輻射和優(yōu)良的介電性能。適用于H級電機,、電器絕緣以及其它用途的電工絕緣材料,。
一,、技術要求：
1,、外觀：薄膜表面平整光潔，不應有折皺,、撕裂,、顆粒、氣泡,、針孔和外來雜質等缺陷,，邊緣整齊無破損。薄膜成卷供應,。
2,、尺寸：
2.1 厚度與允許偏差：推薦厚度,，也可根據用戶要求供應
| 標準厚度 | 25μm | 40μm | 50μm | 75μm | 100μm | 125μm | 175μm | 200μm |
| 允許偏差 | 2.5 | 4 | 5 | 7.5 | 8 | 8 | 8 | 8 |
| -2.5 | -4 | -5 | -7.5 | -7 | -8 | -8 | -8 |
2.2 寬度：薄膜寬度不小于250毫米，偏差±1.6[毫米,。根據用戶的需要可栽制不同規(guī)格的帶,。
2.3 長度：根據用戶要求供應。
3,、性能要求
| 序號 | 項目 | 單位 | 指標值 |
| 25μm | 40μm | 50μm | 75μm | 100μm | 125μm | 175μm | 200μm |
| 1 | 密度 | kg/m3 | 1420±20 |
| 2 | 抗張 | 縱向橫向 | MPa | ≥150 ≥130 | ≥135≥115 |
| 3 | 延伸 | 縱向橫向 | % | ≥60 |
| 4 | 熱收縮率, 150℃ 400℃ | % | ≤1.0 ≤3.0 |
| 5 | 介電強度 | 平均值 | MV/m | ≥150 | ≥120 |
| 特別值 | ≥100 | ≥80 |
| 6 | 表面電阻 ,200℃ | Ω | ≥1.0X1013 |
| 7 | 體積電阻 ,200℃ | Ω·m | ≥1.0X1010 |
| 8 | 相對介電常數,48-62Hz | — | 3.5±0.4 |
| 9 | 介電損耗因數 48-62Hz | — | ≤4.0X10-3 |
| 10 | 長期耐熱溫度 | — | ≥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.
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