生物基呋喃聚酯纤维的制备与表征  

Preparation and characterization of bio-based furan polyester fiber

作　　者：苏坤梅[1] 张祥辉 刘成志 李振环[2] SU Kunmei;ZHANG Xianghui;LIU Chengzhi;LI Zhenhuan(School of Chemical Engineering and Technology,Tiangong University,Tianjin 300387,China;School of Material Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学化学工程与技术学院,天津300387 [2]天津工业大学材料科学与工程学院,天津300387

出　　处：《天津工业大学学报》2024年第6期15-21,共7页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(21878231,21676202);天津市自然科学基金重点资助项目(22JCZDJC00100)。

摘　　要：为了解决传统石油基聚酯纤维生产带来的资源短缺和环境问题,以2,5-呋喃二甲酸二甲酯(DMFD)、碳酸二丁酯(DBC)和1,4-丁二醇(BDO)为原料,采用熔融聚合和熔融纺丝制备了聚2,5-呋喃二甲酸丁二醇酯(PBF)纤维和聚(2,5-呋喃二甲酸-碳酸-1,4丁二醇)酯(PBCF)纤维;利用乌氏黏度计测试制备的聚酯切片与纤维的特性黏度以及纺丝过程的黏度损失;利用声速取向度仪、DSC和XRD来分析纤维的取向度以及结晶性能;利用沸水收缩率测试来比较2种纤维的尺寸稳定性;利用TG分析纤维的热稳定性;利用纤维线密度测试和纤维强伸测试来表征纤维的力学性能。结果表明:PBF聚酯切片特性黏度为0.88 dL/g,与PBCF的特性黏度1.01 dL/g相比偏低;在2倍牵伸下,与PBF纤维相比,PBCF纤维的取向度(fs=0.27)、结晶性能、尺寸稳定性(沸水收缩率=37.42%)、力学性能(断裂强度=5.88 cN/dtex,断裂伸长率=110.34%)略低;但PBCF纤维的热稳定性(T_(d,0)=363.4℃,T_(d,max)=383.3℃)优于PBF纤维,能满足在纺织品领域的应用。In order to address the resource shortage and environmental issues caused by the production of traditional petroleum-based polyester fibers,poly(2,5-furandimethyleneoxyterephthalate)(PBF)fibers and poly(2,5-furandimethyleneoxyterephthalate-co-cyclohexanedimethanol-co-dibutyl carbonate)(PBCF)fibers were prepared by melt polymerization and melt spinning using dimethyl 2,5-furandicarboxylate(DMFD),dibutyl carbonate(DBC),and 1,4-butanediol(BDO)as raw materials.The characteristics viscosity of the prepared polyester chips and fibers,as well as the viscosity loss during the spinning process,were measured using an Ubbelohde viscometer.The fiber orientation and crystallinity were analyzed using a sonic velocity orientator,DSC and XRD.The size stability of the two fibers was compared using a boiling water shrinkage tester,while the thermal stability was tested using TG analysis.The mechanical properties of the fibers were characterized by fiber linear density and tensile properties test.The results show that the characteristic viscosity of PBF is 0.88 dL/g,lower than that of PBCF(1.01 dL/g).Under stretching for 2 times,PBCF fibers exhibites slightly lower orientation(fs=0.27),crystallization properties,dimensional stability(boiling water shrinkage=37.42%),and mechanical properties(breaking strength=5.88 cN/dtex,elongation at break=110.34%)compared with PBF fibers.However,the thermal stability of PBCF fibers(T_(d,0)=363.4℃,T_(d,max)=383.3℃)is superior to that of PBF fibers,demonstrating potential for applications in the textile industry.

关 键 词：生物基 2 5-呋喃二甲酸二甲酯 呋喃基聚酯 熔融纺丝 熔融聚合 聚酯纤维 

分 类 号：TS102.511[轻工技术与工程—纺织工程] TS102.522[轻工技术与工程—纺织科学与工程]