动态纸页成形器模拟多层斜网成形器生产水溶性PVA纤维高强纸工艺探讨  

Optimization of PVA Fiber Enhancement Paper Process with Dynamic Sheet Former Simulating Multilayer Inclined Wire Formers

作　　者：王彪[1] 李群[1] 李菲[1] 薛涵[1] 程登智 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室,天津300457 [2]陕西华特玻纤材料集团有限公司,陕西兴平712000

出　　处：《纸和造纸》2014年第9期27-31,共5页Paper and Paper Making

基　　金：2014年国家级大学生创新创业训练计划项目"纳米纤维素高浓/高剪切原位阳离子化改性反应工艺设计";项目编号:201410057050

摘　　要：采用动态纸页成形器（DSF）模拟实际生产中多层斜网成形器实现纸张的分层抄造,分析讨论水溶性PVA纤维在纸张结构中不同位置对成纸强度性能的影响;探讨纸张成形、干燥过程对PVA纤维结合状况、成纸纵横向强度等主要物理性能的影响;通过优化DSF运行参数,在针叶木长纤维（NBSK）浆料中添加0.8%~1.0%的PVA 70纤维（即温度在70℃左右时就能完全溶解的PVA纤维）,压榨气控箱压力在0.2~0.3 MPa之间,干燥温度在95℃情况下,可获得最优增强作用。Dynamic Sheet Former （DSF） was adopted to simulate the multilayer inclined wire formers to implement papermaking for layers. The effects of soluble PVA fiber on paper strength properties in different positions of paper structure were analyzed, meanwhile, the effects of forming and drying process were discussed on the combination of PVA fiber and the machine direction and cross machine direction strength properties. The optimal efficiency can be acquired by optimizing the parameters of DSF, adding PVA 70 fiber （ which could be dissolved completely at 70℃ ） with dosage of 0.80,6 to 1.0% in the Northern Bleached Softwood Kraft （NBSK）, keeping the pneumatic control value at 0.2 MPa to 0.3 MPa and drying temperature at about 95℃ in this produce.

关 键 词：聚乙烯醇纤维 纸页成形 斜网成形器 纸张强度 

分 类 号：TS75[轻工技术与工程—制浆造纸工程]