聚乙烯醇纤维对纸纱原纸性能的影响

Study on the Effects of Polyvinyl Alcohol Fiber on the Properties of Paper Yarn

关键词:  纸纱原纸  PVA纤维  物理性能

Key Words:paper yarn  PVA fiber  physical properties

摘要:在麻浆中加入聚乙烯醇（PVA）纤维制备纸纱原纸，探究了抄造工艺条件对纸纱原纸性能的影响。结果表明，较优的抄造工艺条件为：PVA纤维添加量2.0%，聚酰胺环氧氯丙烷（PAE）添加量2.4%，两性聚丙烯酰胺（AmPAM）添加量0.05%，烷基烯酮二聚体（AKD）添加量0.18%，打浆度75°SR，压光线压力15 N/mm，经过湿压榨后，干燥温度为80℃。在此条件下所抄纸纱原纸的抗张指数为80.0 N·m/g，湿抗张指数为32.8 N·m/g，撕裂指数为14.7 mN·m²/g，耐折度为1498次，平滑度为41 s，柔软度TS7值为53.8，伸长率为3.37%。

Abstract:In this study， polyvinyl alcohol （PVA） fiber was added into the hemp pulp to explore the influence of the processing conditions on the performance of the paper yarn.The results showed that the better processing conditions were as follows： PVA fiber addition amount 2.0%，beating degree hemp pulp of 75°SR， dosage of PAE， AmPAM， and AKD were 2.4%， 0.05% and 0.18%， respectively， pressure of calendering 15 N/mm， and drying temperature of 80℃ after wet pressing. Under these conditions， the dry tensile index， wet tensile index and tear index of the paper were 80.0 N·m/g， 32.8 N·m/g， 14.7 mN·m²/g， folding endurance 1498 times， smoothness 41 s， softness TS7 value 53.8， elongation rate 3.37%.