提高芳纶原纸强度的工艺研究  

Technical study of improving strength of aramid base paper

作　　者：吴雪丹[1] 赵会芳[1] 林盈盈[1] 聂胜丽[1] 

机构地区：[1]浙江科技学院轻工学院,杭州310023

出　　处：《浙江科技学院学报》2011年第3期199-202,共4页Journal of Zhejiang University of Science and Technology

基　　金：浙江省大学生科技创新活动计划(新苗人才计划)项目资助(2010R415028)

摘　　要：通过实验研究了芳纶浆粕的性质、芳纶浆粕与芳纶短切纤维配比、分散剂的用量及成形方法对芳纶原纸强度的影响,从而确定较为合适的芳纶原纸抄造工艺。结果显示:高打浆度、表面起毛程度较好的浆粕有利于提高芳纶浆粕与纤维之间的结合力,从而提高芳纶原纸的强度;浆粕与纤维质量比为1.5∶1时芳纶原纸强度最好;抄纸时适量加入PEO分散剂可提高芳纶原纸的匀度和强度,最佳PEO质量分数为0.15%;分层成形比一次成形所得芳纶原纸强度更高。Effect of the properties of aramid fibrid, the fiber furnish of aramid fibrid and aramid fiber, the dosage of PEO dispersant and the forming ways on the strength of aramid base sheet were studied by means of experiments, and the suitable papermaking technologies of aramid base sheet were determined. The results showed that higher beating degree and more fluffy surface of aramid fibrid are helpful to improve the binding force between fibrid and fiber, thus improving the strength of aramid base sheet; the optimum ratio of fibrid and fiber is 1.5 ：1. Adding proper PEO dispersant to papermaking pulp can increase the formation and strength of aramid base sheet and the optimum PEO dosage is 0.15 0%. Layered forming is better than forming at a time.

关 键 词：芳纶纤维 芳纶浆粕 芳纶原纸 分散剂 分层成形 

分 类 号：TS761.2[轻工技术与工程—制浆造纸工程]