| 高萌,彭磊,卓然,付强,赵林杰.细纤维化针叶木浆及其筛分短级分对绝缘皱纹纸基纸性能的影响[J].中国造纸,2026,45(7):122-130 |
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| 细纤维化针叶木浆及其筛分短级分对绝缘皱纹纸基纸性能的影响 |
| Effects of Fibrillated Softwood Pulp and Its Sieved Short Fractions on the Insulating Crepe Base Paper Properties |
| 收稿日期：2026-01-19 修订日期：2026-02-10 |
| DOI：10.11980/j.issn.0254-508X.2026.07.013 |
| 关键词: 绝缘皱纹纸基纸 微纤维 筛选分级 纸张微结构 强度性能 |
| Key Words:insulating crepe base paper microfibrillated fiber sieving and grading paper microstructure strength property |
| 基金项目:中国南方电网有限责任公司科技项目（GDKJXM2022 2222）。 |
| 作者 | 单位 | 邮编 | | 高萌* | 1南方电网科学研究院有限责任公司,广东广州,510530 | 510530 | | 彭磊 | 2广东电网有限责任公司 电力科学研究院,广东广州,510062 | 510062 | | 卓然 | 1南方电网科学研究院有限责任公司,广东广州,510530 | 510530 | | 付强 | 2广东电网有限责任公司 电力科学研究院,广东广州,510062 | 510062 | | 赵林杰 | 1南方电网科学研究院有限责任公司,广东广州,510530 | 510530 |
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| 摘要:本研究首先对商品绝缘皱纹纸的基本性能和纤维形态进行分析。进一步，将针叶木浆打浆到95 °SR形成细纤维化针叶木浆（微纤维），然后用200目筛对其进行筛分，得到粒径<75 μm的级分（微纤维-短）；将微纤维或微纤维-短与未打浆针叶木浆进行混合抄纸，研究微纤维及微纤维-短添加量对抄纸过程、纸张微结构和纸张强度性能的影响。结果表明，微纤维及微纤维-短的添加量会对纸张微结构及性能产生重要影响，其中微纤维-短的影响程度更大；当微纤维-短添加量为10%时，纸张紧度为0.57 g/m3，透气度为5 μm/(Pa·s)，平均孔径为1.9 μm，最大孔径为4.7 μm；纸张的抗张强度和撕裂度分别可达4.62 kN/m和1 403 mN，所制油纸绝缘材料的直流击穿强度为136 kV/mm。 |
| Abstract:In this study， the basic properties and fiber morphology of commercial insulating crepe paper were analyzed firstly. Softwood pulp was refined to 95 °SR as fibrillated softwood pulp (microfibrillated fiber)， and then sieved with a 200-mesh sieve to obtain the fractions with pore size 75 μm (microfibrillated fiber-short). The microfibrillated fiber and microfibrillated fiber-short were mixed with unbeaten softwood pulp for papermaking， and the effects of the addition amount on the papermaking process， microstructure and strength properties of paper were studied. The results showed that the addition amount of microfibrillated fiber and the microfibrillated fiber-short showed a significant impact on the microstructure and related properties of paper， with the microfibrillated fiber-short having a greater influence. When the addition amount of the microfibrillated fiber-short was 10%， the density of the paper was 0.57 g/m3， the air permeability was 5 μm/(Pa·s)， the average and maximum pore sizes of the paper were 1.9 μm and 4.7 μm， respectively. The tensile strength and tear strength could reach 4.62 kN/m and 1 403 mN， respectively， and the DC breakdown strength of the prepared oil-paper insulating material was 136 kV/mm. |
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