稻草低温p-TsOH制浆性能研究

尹崇鑫; 王敏; 卞辉洋; 吴伟兵; 戴红旗; 程金兰

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

Received:June 09, 2021

DOI：10.11981/j.issn.1000-6842.2022.01.73

Key Words:p-toluenesulfonic acid;rice straw;pulping

Fund Project: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）。

Author Name	Affiliation	Postcode
YIN Chongxin^*	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	210037
WANG Min	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	210037
BIAN Huiyang	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	210037
WU Weibing	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	210037
DAI Hongqi	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	210037
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	210037

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Abstract:

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·m²/g higher， respectively； and its bursting index was comparable to that of alkaline rice straw pulp.

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