全生物基聚呋喃二甲酸丙二醇酯及其纤维制备与性能  

Synthesis and fiber fabrication of fully biobased polytrimethylene furandicarboxylate

作　　者：赫爽 孙莉娜 胡红梅 朱瑞淑 俞建勇 王学利 HE Shuang;SUN Li′na;HU Hongmei;ZHU Ruishu;YU Jianyong;WANG Xueli(College of Textiles,Donghua University,Shanghai 201620,China;Innovation Center for Textile Science and Technology,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学纺织学院,上海201620 [2]东华大学纺织科技创新中心,上海201620

出　　处：《纺织学报》2023年第5期63-69,共7页Journal of Textile Research

摘　　要：为促进生物基聚酯在纺织领域的应用,采取酯交换-熔融缩聚法,使用醋酸锌-钛酸四丁酯为组合催化剂,制备了全生物基聚呋喃二甲酸丙二醇酯(PTF)。借助红外光谱仪、核磁共振波谱仪、差示扫描量热仪、热重分析仪等表征了PTF的化学结构和热性能;通过二步法纺丝工艺制备了PTF纤维,并研究了不同牵伸倍数对纤维的力学性能影响。结果表明:成功合成的目标产物PTF的数均分子质量达到35 000 g/mol,玻璃化转变温度为60~62℃,熔点约为171℃,起始热分解温度高于370℃,具有良好的热稳定性;初生纤维牵伸至2.5倍时,PTF纤维的断裂伸长率为34.2%左右,断裂强度为0.48 cN/dtex。Objective Polyester industry is an important industry relating to the national economy and the people′s livelihood.Most polyesters are prepared from petroleum and other fossil resources as raw materials.The combustion process of polyester will produce a large amount of carbon dioxide and sulfur dioxide,which not only pollute the environment,but also lead to global warming,climate change and other serious problems.In order to further implement the sustainable development and the promote China′s″double carbon″strategic goal,it is urgent to minimise the dependence on fossil energy.In 2004,the US Department of Energy released 12 platform compounds derived from biomass that can be converted into high value-added biobased materials.Among them,the chemical structure of 2,5-furanedicarboxylic acid(FDCA)is similar to petroleum based terephthalic acid(PTA),which can be used as an ideal biobased substitute for PTA.With the maturity of the synthesis and purification technology of FDCA,furan based polyester has attracted attention in various fields,becoming a key research direction of biobased high molecular materials.This research focus is on the study of furan based homopolymers and copolymers.Method In this research,the use conditions of zinc acetate tetrabutyl titanate composite catalyst were optimized using 1,3-PDO and DMFD as raw materials.The full biological PTF with high molecular weight was synthesized by transesterification melt polycondensation.The chemical structure and thermal properties of the PTF were characterized by infrared spectroscopy,nuclear magnetic resonance hydrogen spectroscopy,differential scanning calorimetry and thermogravimetry,the biobased PTF fibers were prepared by two-step spinning process(UDY-DT),and the influences of different drafting ratios on the mechanical properties of the fibers were studied.Results In the process of adjusting the reaction process,it was found that only zinc acetate was added in the esterification stage,and tetrabutyl titanate was added in the polycondensation

关 键 词：生物基材料 聚呋喃二甲酸丙二醇酯 合成工艺 熔融纺丝 酯交换-熔融缩聚法 热性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业] TS102.5[轻工技术与工程—纺织工程]