抄造工艺参数对ASA施胶性能的影响  

Effect of Papermaking Process Parameters on Sizing Performance of ASA

作　　者：刘建杰[1] 李群[1] 牛立平[1] 丁文慧[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津市制浆造纸重点实验室,天津300457

出　　处：《造纸化学品》2010年第2期5-9,67,共6页Paper Chemicals

基　　金：浙江省自然科学基金"纤维素非匀相酯醚化反应性与纸页施胶时的物理化学原理"项目(编号:Y406226)的资助

摘　　要：以杨木APMP为原料,重点考察了抄纸浆浓、浆料pH、湿部助剂添加顺序、湿部停留时间、压榨力、压榨时间、干燥温度和干燥时间等抄造过程中的工艺参数对ASA施胶性能的影响。研究结果表明:抄纸浆浓过高会使手抄片的施胶度下降;浆料的pH对施胶度有很大影响,当浆料pH在6～8之间时可以得到较好的施胶效果;湿部助剂添加顺序的不同导致施胶度有较大的差异;施胶度随着ASA乳液在湿部停留时间的增长而下降;施胶度随压榨压力和压榨时间的增加而上升,但是上升幅度并不大;手抄片完全干燥后即可得到稳定的施胶度,而施胶度受干燥温度影响很大,温度越低,施胶度也越低。The influences of papermaking process parameters, which included paper furnish concentration, pH, adding sequence of wet end additives, residence time of ASA in wet end, press nip pressure, pressing time, drying temperature and drying time, on the sizing performance of ASA were investigated in this paper. The results showed that high paper furnish concentration resulted in the reduction of ASA sizing performance. The pH showed significant influence on the ASA sizing： the sizing degree was higher when the pH value was in the range of 6 to 8. The different adding sequence of wet end additives gave different sizing responds. Increasing the residence time of ASA in wet end.lowered the sizing performance of ASA. As the nip pressure and pressing time increased, the sizing degree of ASA sized paper also increased, but the range of variation was not large. After being dried, a paper with stable sizing degree could be obtained. The drying temperature also had a great impact on ASA sizing. Lower drying temperature resulted in paper with lower sizing degree.

关 键 词：烯基琥珀酸酐 中性施胶 抄造工艺 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程]