氢氧化钠-硫脲水溶液对纤维素纤维松厚性能的影响研究  

The effect on the bulk property of cellulose fiber of the treatment with NaOH-thiourea aqueous solution

作　　者：翟睿 张学金[1] 周小凡[2] ZHAI Rui;ZHANG Xue-jin;ZHOU Xiao-fan(Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejing Province,Zhejiang University of Science and Technology,Hangzhou 310023,China;Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]浙江科技学院,浙江省废弃生物质循环利用与生态处理技术重点实验室,杭州310023 [2]南京林业大学,江苏省制浆造纸重点实验室,南京210037

出　　处：《中华纸业》2020年第12期17-21,共5页China Pulp & Paper Industry

基　　金：2019年浙江省自然科学基金/青年基金项目(LQ19C160001)。

摘　　要：利用氢氧化钠-硫脲水溶液处理漂白竹材硫酸盐化学浆(低温条件下),以求在保证纤维素纤维成纸强度性能的前提下改善其松厚性能,通过单因素试验探究最佳处理工艺。结果表明:在用碱量8%(以氢氧化钠计)、处理浓度15%、浸渍时间10min、冷冻时间70min的条件下,该体系对纤维素纤维松厚性能的改善效果最佳。处理后纤维成纸松厚度提高21.7%,抗张指数和耐破指数分别降低7.30%和8.16%,而纤维形态和成纸断面形态的变化更为明显。In this paper,NaOH-thiourea aqueous solution was used to treat cellulose fiber at low temperature for the modification on the bulk property without significant variation on the strength property,and the effect was evaluated by single factor tests.The results showed that the alkali dosage of 8%(based on NaOH),fiber concentration of 15%,soaking time of 10min and freezing time of 70min were chosen as the optimal conditions.Compared with those of the original cellulose fiber,the bulk of the treated cellulose fiber was increased by 21.7%,and the tensile index and burst index were decreased by 7.30%and 8.16%respectively.Besides,the variations on the fiber morphology and paper cross-section morphology were more significant.

关 键 词：氢氧化钠-硫脲水溶液 纤维素纤维 松厚性能 强度性能 

分 类 号：TS727+.1[轻工技术与工程—制浆造纸工程] TS743+.12