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聚脂薄膜纸(青壳纸)
聚脂薄膜经高温青壳纸,表面颜色青黑色,有较强的拉伸强度,纵向及横向弯曲,耐温于130℃,耐电压4000伏,不起泡,不流胶,适用于电器、漆包线、变压器绝缘保护。
详细介绍:
聚酯薄膜绝缘柔软复合材料的耐热等级E B级。
是一种二层的柔软绝缘材料,由青色电绝缘纸板,聚酯薄膜组成,使用的粘合剂不含酸,耐热,具有良好的机械及电气性能,
可用于低压电机、电器中作槽绝缘、衬垫绝缘和匝间绝缘.
青壳纸是一种柔软复合材料,由聚酯薄膜涂以胶粘剂,一面粘合木浆绝缘纸而成的二层绝缘纸。
青壳纸集合了木浆绝缘纸良好的绝缘性能和聚酯薄膜良好的介电强度,广泛适用电气设备,适用于B级电机的槽间绝缘、匝间绝缘和衬垫绝缘。
外观Appearance
表面应均匀、无起毛、和无气泡、针孔、皱折及瑕疵之类缺陷
表1青壳纸性能要求
序号 NO. | 指称名称 Properties | 单位 Units | 指标值 Values |
1 | 标称厚度 Nominal thickness | mm | 0.15 | 0.17 | 0.20 | 0.25 | 0.30 | 0.5 |
2 | 厚度允差 Thicknessallowed tolerance | mm | ±0.02 | ±0.02 | ±0.03 | ±0.03 | ±0.03 | ±0.03 |
3 | 标称定量 Nominal grammage | g/m2 | 155 | 180 | 210 | 255 | 300 | 600 |
5 | 薄膜标称厚度 Film nominal thickness | um | 25 | 25 | 25 | 25 | 25 | 25 |
6 | 拉伸强度(纵向) Tensile strength(MD) | N/10mm | ≥100 | ≥110 | ≥120 | ≥120 | ≥150 | ≥150 |
7 | 拉伸强度(横向) Tensile strength(XD) | N/10mm | ≥70 | ≥75 | ≥80 | ≥95 | ≥105 | ≥105 |
8 | 伸长率(纵向) Elongation(MD) | % | ≥2 | ≥2 | ≥2 | ≥2 | ≥2 | ≥2 |
9 | 伸长率(横向) Elongation(XD) | % | ≥8 | ≥8 | ≥8 | ≥8 | ≥8 | ≥8 |
10 | 击穿电压 Electric breakdown voltage | KV | ≥2 | ≥3 | ≥4 | ≥5 | ≥5.5 | ≥6 |
11 | 热态粘结120±2℃ 10Min Bond strength at 120±2℃ |
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