生物基聚呋喃二甲酸戊二醇酯及柔性薄膜的制备与性能  

Preparation and Properties of Bio-Based Polypentyl Furanodicarboxylate and Its Flexible Films

作　　者：唐瑞敏 尹琪琦 任彦 袁明龙[1] 袁明伟[1] 李宏利[1] TANG Ruimin;YIN Qiqi;REN Yan;YUAN Minglong;YUAN Mingwei;LI Hongli(National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials,Yunnan Minzu University,Kunming 650500,China)

机构地区：[1]云南民族大学生物基材料绿色制备技术国家地方联合工程中心,云南昆明650500

出　　处：《塑料工业》2024年第6期115-120,共6页China Plastics Industry

基　　金：云南省万人计划青年拔尖人才专项(YNWR-QNBJ-2019-094);云南省科技厅科技计划项目(基础研究专项-202301AT070018);云南民族大学2022年硕士研究生科研创新基金项目(2022SKY035)。

摘　　要：随着全球生物经济的发展,生物基材料由于其绿色低碳、环境友好和资源节约等特点成为了新的研究焦点。本文以同一生物基来源的2,5-呋喃二甲酸和1,5-戊二醇为基础,通过熔融聚合制备了一系列无规的韧性聚酯材料——聚呋喃二甲酸戊二醇酯(PPeF)。利用1 H NMR和FTIR确定其分子结构后,通过溶剂铺膜的方式得到薄膜材料。GPC的结果表明,PPeF的数均分子量均在2万以上,且多分散性指数为2.0~2.4,分子量分布较窄。TG的结果表明,PPeF的初始热分解温度约为370℃,具有良好的耐热性及加工性。XRD的结果表明,PPeF处于非结晶状态。力学测试结果表明,PPeF薄膜具备较好的延展性,其最大的断裂伸长率可达1764%。PPeF作为一种可生物降解的材料,可将其应用于脆性生物基材料的改性。With the developments of global bioeconomy,bio-based materials have become the new research focus because of their green,low-carbon,environment-friendly and resource-saving characteristics.In this paper,a series of random and flexible polyester materials[polypentyl furanodicarboxylate(PPeF)]were prepared by the melting polymerization.2,5-furanodicarboxylic acid and 1,5-pentanediol from the same biological source were monomers.After the molecular structures were determined by 1 H NMR and FTIR,the film was prepared by the solvent coating method.GPC results show that the number-average molecular weight of PPeF is more than 20000,and the polydispersity index is 2.0-2.4,indicating the narrow distribution.The TG results show that the initial thermal degradation temperature of PPeF is about 370℃,showing that PPeF has good heat resistance and processability.The XRD results show that PPeF is amorphous.The mechanical test results show that the PPeF film has good gluten extensibility,and its maximum elongation at break can reach 1764%.As a biodegradable material,PPeF could be applied to modify the brittle bio-based materials.

关 键 词：聚呋喃二甲酸戊二醇酯 聚酯薄膜 柔性材料 耐热性 生物基材料 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]