棉秆韧皮浆粕的制备与性能测试  

Preparation and property test of cotton stalk phloem pulp

作　　者：汪烨 林燕萍[1] 杨陈[1] WANG Ye;LIN Yanping;YANG Chen(Jiangxi Centre for Modern Apparel Engineering and Technology,Jiangxi Institute of Fashion Technology,Nanchang 330201,China;Department of Art Design,Changzhou Art Vocational College of Jiangsu Province,Changzhou 213147,China)

机构地区：[1]江西服装学院江西省现代服装工程技术研究中心,江西南昌330201 [2]常州艺术高等职业学校艺术设计系,江苏常州213147

出　　处：《河南工程学院学报（自然科学版）》2024年第1期7-11,共5页Journal of Henan University of Engineering：Natural Science Edition

基　　金：江西省教育厅科学技术重点研究项目(GJJ2202802);江西省教育厅科学技术研究项目(GJJ202417)。

摘　　要：通过高温蒸煮和有机酸与乙醇组合溶解方式对棉秆韧皮进行制浆,并以浆粕得率为依据进行工艺优化。用核磁共振、红外光谱和热重分析等技术对制浆前棉秆韧皮和制浆所得浆粕的聚合度、相对分子量、Iα纤维素含量、分子结构和热学性能等指标进行表征。结果表明:棉秆韧皮制浆的最佳工艺为温度100℃、处理时间120 min、过氧化氢质量分数10%、乙醇质量分数60%;经制浆处理,棉秆韧皮中的木质素和半纤维素发生了部分酯化和酰化,使得其中的Iβ纤维素和微纤维结构受到破坏,热学性能下降,Iα纤维素含量增加。High temperature cooking and dissolution of organic acid and ethanol were used to optimize the pulping process.The polymerization degree,relative molecular weight,Iαcellulose content,molecular structure and thermal properties of bast and pulping pulp were characterized by NMR,IR and thermogravimetric analysis.The results show that the optimum process of cotton stalk pulping was 100℃,120 min,10%hydrogen peroxide concentration,60%ethanol concentration.The properties test showed that after the pulping process,the lignin and hemicellulose in the cotton stalk were partially esterified and acylated,which destroyed the structure of the Iβcellulose and microfiber,decreased the thermal properties,and increased the content of Iαcellulose.

关 键 词：棉秆韧皮 浆粕 聚合度 分子量 红外光谱 核磁共振 热学性能 

分 类 号：TS119[轻工技术与工程—纺织材料与纺织品设计]