| 王婕,崔惠泽,顾雯雯,赵哲惠,钱丽颖,李军荣.打浆和热压对绝缘纸孔隙结构及性能的影响[J].中国造纸,2026,45(7):101-111 |
二维码（扫一下试试看！） |
| 打浆和热压对绝缘纸孔隙结构及性能的影响 |
| Effects of Beating and Hot-pressing Effects on the Pore Structure and Performance of Insulating Paper |
| 收稿日期：2026-01-16 修订日期：2026-03-19 |
| DOI：10.11980/j.issn.0254-508X.2026.07.011 |
| 关键词: 绝缘纸 打浆 热压 孔隙结构 电气性能 |
| Key Words:insulating paper beating hot-pressing pore structure electrical performance |
| 基金项目:国家电网有限公司总部科技项目（5216A0250024-423-ZN）。 |
| 作者 | 单位 | 邮编 | | 王婕* | 1华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 崔惠泽 | 2中国电力科学研究院 有限公司,北京,100192 | 100192 | | 顾雯雯 | 2中国电力科学研究院 有限公司,北京,100192 | 100192 | | 赵哲惠 | 2中国电力科学研究院 有限公司,北京,100192 | 100192 | | 钱丽颖 | 1华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 | | 李军荣* | 1华南理工大学轻工科学与工程学院,广东广州,510640 | 510640 |
|
| 摘要点击次数: 260 |
| 全文下载次数: 42 |
| 摘要:本研究以针叶木浆为原料，在不同打浆度（13~66 °SR）和热压工艺下制得系列绝缘纸，探究了不同工艺条件对绝缘纸孔隙结构的影响，并分析了孔隙结构变化对绝缘纸机械性能、浸渍特性及电气性能的影响。结果表明，随着打浆度由13 °SR（未打浆）提高至66 °SR，未热压绝缘纸的平均孔径从7.31 µm降至1.13 µm，最大孔径从18.43 µm降至1.78 µm。热压处理进一步使绝缘纸的孔径向更小尺度区间变化，打浆度66 °SR时，热压绝缘纸的平均孔径与最大孔径分别减至0.45 µm与0.99 µm，且热压对低打浆度绝缘纸的孔径改变效果更为显著。打浆和热压处理后，绝缘纸的孔径尺寸减小与分布收窄，其机械性能与电气性能均得到提升，但因绝缘油传输与存储受限，其吸油性能有所下降。打浆度66 °SR时，热压油浸后绝缘纸的直流与交流击穿场强分别达125.2和65.8 kV/mm，相较于未打浆分别提升了52.1%和86.4%。 |
| Abstract:In this study, a series of insulating paper was prepared from softwood pulp under different beating degrees (13~66 °SR) and hot-pressing processes. The effects of different process conditions on the pore structure of insulating paper were explored, and the effects of pore structure changes on the mechanical, impregnation and electrical properties of insulating paper were analyzed. The results showed that with the increase of beating degree from 13 °SR (unbeated) to 66 °SR, the average pore size of unhot-pressed insulating paper decreased from 7.31 µm to 1.13 µm, and the maximum pore size decreased from 18.43 µm to 1.78 µm. The hot-pressing treatment further changed the pore size of the insulating paper to a smaller scale interval. When the beating degree was 66 °SR, the average and maximum pore sizes of the hot-pressed insulating paper were reduced to 0.45 and 0.99 μm, respectively. And the hot-pressing had a more significant effect on changing the pore size of the insulating paper with a low beating degree. After beating and hot-pressing treatment, the pore size of the insulating paper decreased and the distribution narrowed, and the mechanical and electrical properties were improved. However, due to the limited transmission and storage of insulating oil, its oil absorption performance decreased. When the beating degree was 66 °SR, the direct current and alternating current breakdown field strengths of the hot-pressed insulating paper after oil immersion reached 125.2 and 65.8 kV/mm, compared to the paper without beating increased 52.1% and 86.4%, respectively. |
| 查看全文
HTML
查看/发表评论 下载PDF阅读器 |
|
|
|