沉析纤维长度对间位芳纶纸性能的影响

Effects of Fibrid Length on the Performances of Meta-aramid Paper

关键词:  沉析纤维  纤维长度  间位芳纶纸  性能

Key Words:fibrid  fiber length  meta-aramid paper  performance

摘要:本研究采用槽式打浆机得到不同长度的间位芳纶沉析纤维（简称沉析纤维），与间位芳纶短切纤维混合，通过湿法成形工艺制备间位芳纶配抄纸（简称配抄纸），并探究沉析纤维长度对配抄纸性能的影响。结果表明，随着沉析纤维长度的降低，配抄纸的透气度先下降后上升，抗张强度、断裂伸长率及电气强度则先上升后下降。当沉析纤维长度为0.9 mm时，配抄纸的各项性能最佳：透气度为2.59 μm/(Pa·s)，抗张强度为863 N/m，断裂伸长率为2.54%，电气强度为6.82 kV/mm。

Abstract:In this study， the meta-aramid fibrids （referred to as fibrids） with different length were obtained by trough beater， the meta-aramid blended papers （referred to as blended papers） were prepared by wet-laid process after mixing with the meta-aramid chopped fibers， and the effects of fibrid length on the performances of blended papers were investigated. The results showed that with the decrease of the fibrid length， the air permeability of the blended paper first decreased and then increased， the tensile strength， the elongation at break， and the electrical strength first increased and then decreased. When the fibrid length was 0.9 mm， the performances of the blended paper were the best： the air permeability of 2.59 μm/（Pa·s）， the tensile strength of 863 N/m， the elongation at break of 2.54%， and the electrical strength of 6.82 kV/mm.