PET纤维截面形状对过滤纸结构和性能的影响

Influence of PET Fibers’ Cross-sectional Shape on Structure and Properties of Filter Paper

关键词:  PET纤维截面形状  过滤纸  结构  性能

Key Words:fibers′ cross-sectional shape  filter paper  structure  performance

摘要:采用5种截面形状（圆形、三角形、三叶形、十字形、丰字形）的PET纤维与植物纤维配抄过滤纸，探究PET纤维截面形状对过滤纸结构和性能的影响。结果表明，与圆形纤维相比，三角形、三叶形、十字形以及丰字形纤维对过滤纸的过滤效率没有显著影响，但容尘量都有不同程度的提高。PET纤维添加量为40%时，与圆形纤维相比，含三角形、三叶形、十字形和丰字形纤维过滤纸的容尘量分别增加了8.2 g/m²、11.7 g/m²、9.9 g/m²、13.8 g/m²。其中，三叶形纤维和丰字形纤维对过滤纸的厚度和容尘量的影响较大，丰字形纤维比三角形、三叶形和十字形纤维对过滤纸的孔径和透气度具有更显著的影响。

Abstract:In this paper， the influence of PET fibers’cross-sectional shape on structure and properties of filter paper was extensively studied by preparing handsheets using cellulose fibers and PET fibers with different cross-sectional shapes. The result showed that compared with the same amount of the round fiber，the triangular，trilobal， cruciform and “丰” fibers had no significant effect on the filtration efficiency of the filter paper. However， the dust holding capacity of the paper increased to some extent. When the PET fibers content was 40%， the dust holding capacity of filter paper containing triangular， trilobal， cruciform and “丰” fibers increased by 8.2 g/m²， 11.7 g/m²， 9.9 g/m² and 13.8 g/m² respectively. Furthermore， the trilobal and “丰” fibers had a greater impact on the thickness and dust holding capacity of the papers. The “丰” fiber had more significant influence on the pore size and air permeability of the papers than the triangular， trilobal and cruciform fibers．