NMMO法竹纤维拉伸强度的影响因素探讨  

Influential factors on tensile strength of bamboo fiber prepared by NMMO method

作　　者：黄锦锋 HUANG Jinfeng(0x09Fujian Hongyuan Group Co.,Ltd.,Quanzhou 362000;Fujian Provincial Key Laboratory of Regenerated Cellulose Fiber,Quanzhou 362000;Fujian Cellulose Fiber Engineering Technology Research Center,Quanzhou 362000)

机构地区：[1]福建宏远集团有限公司,福建泉州362000 [2]福建省再生纤维素纤维重点实验室,福建泉州362000 [3]福建省纤维素纤维工程技术研究中心,福建泉州362000

出　　处：《合成纤维工业》2020年第2期37-39,共3页China Synthetic Fiber Industry

摘　　要：以竹浆粕为原料,N-甲基吗啉-N-氧化物(NMMO)水溶液为溶剂,没食子酸正丙酯为抗氧剂,采用湿法纺丝工艺制备竹纤维,讨论了竹浆粕的聚合度、纺丝原液的竹纤维素含量以及抗氧化剂添加量等因素对竹纤维拉伸强度的影响,并通过场发射扫描电子显微镜(FE-SEM)对竹纤维的表面微观形貌进行观察。结果表明:在竹纤维素质量分数为11%~15%、竹浆粕聚合度为450~950、抗氧剂质量分数0~0.5%的条件下,随着竹纤维素含量的增加、竹浆粕聚合度的增大和抗氧化剂添加量的增加,竹纤维的拉伸强度均呈上升趋势;FE-SEM观察发现竹纤维原纤化明显,表面出现明显的表面缺陷。A bamboo fiber was prepared by using bamboo slurry as raw material, N-methylmorpholine-N-oxide(NMMO) aqueous solution as solvent and N-propyl gallate as antioxidant by wet spinning process. The influential factors including the polymerization degree of bamboo slurry and the bamboo cellulose content and antioxidant amount of spinning dope on the tensile strength of bamboo fiber were discussed. The surface micromorphology of bamboo fiber was observed by field emission scanning electron microscope(FE-SEM). The results showed that the tensile strength of bamboo fibers increased with the increase of bamboo cellulose content, polymerization degree of bamboo slurry and the antioxidant addition when the mass fraction of bamboo cellulose was 11%-15%, the polymerization degree of bamboo slurry 450-950, and the mass fraction of the antioxidant 0-0.5%;and bamboo fiber showed obvious fibrillation and surface defects.

关 键 词：再生纤维素纤维 竹纤维 拉伸强度 N-甲基吗啉-N-氧化物 抗氧剂 

分 类 号：TQ341.9[化学工程—化纤工业]