稻草低温p-TsOH制浆性能研究  

Research on Low-temperature p-TsOH Pulping of Rice Straw

作　　者：尹崇鑫 王敏 卞辉洋[1,2] 吴伟兵 戴红旗[1,2] 程金兰[1,2] YIN Chongxin;WANG Min;BIAN Huiyang;WU Weibing;DAI Hongqi;CHENG Jinlan(Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology,Nanjing Forestry University,Nanjing,Jiangsu Province,210037;Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources,Nanjing Forestry University,Nanjing,Jiangsu Province,210037)

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京210037 [2]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037

出　　处：《中国造纸学报》2022年第1期73-78,共6页Transactions of China Pulp and Paper

基　　金：十三五国家重点研发计划课题(2019YFC1905903);江苏省制浆造纸科学与技术重点实验室开放基金项目(201523)。

摘　　要：对稻草进行对甲苯磺酸(p-TsOH)一步法制浆和两步法制浆,并与碱法制浆进行对比,探讨了p-TsOH法制浆的可行性。结果表明,与碱法稻草浆相比,p-TsOH稻草浆的得率更高,成纸的松厚度及强度更好;p-TsOH两步法制浆可以进一步提高木质素脱除率,且浆料纤维断裂少,平均纤维长度更长。其中,稀碱-p-TsOH两步法制浆(N-P45T70t60)比p-TsOH一步法制浆(P45T70t60)的木质素脱除率高12.7个百分点,成纸的抗张指数和耐破指数分别高4.52 N·m/g和0.653 kPa·m^(2)/g,耐破指数与碱法稻草浆成纸相当。The one-step p-toluenesulfonic acid(p-TsOH)pulping and the two-step p-TsOH pulping were carried out on rice straw,and the feasibility of p-TsOH pulping was discussed by comparing with alkaline pulping.The results showed that compared with the alkaline rice straw pulp,the yield of p-TsOH rice straw pulp was higher,and the paper bulk and strength better.The two-step p-TsOH pulping,compared with its one-step counterpart,could further improve the delignification rate,lessen the fiber breakage with longer average fiber length.Moreover,the lignin removal ratio of dilute alkali-p-TsOH two-step pulping(N-P45T70t60)was 12.7 percentage points higher than that of one-step p-TsOH pulping(P45T70t60),the tensile and bursting index were 4.52 N·m/g and 0.653 kPa·m^(2)/g higher,respectively;and its bursting index was comparable to that of alkaline rice straw pulp.

关 键 词：对甲苯磺酸 稻草 制浆 

分 类 号：TS721.3[轻工技术与工程—制浆造纸工程] TQ352.62[化学工程]