聚2,5-呋喃二甲酸乙二醇酯/聚丁二酸丁二醇酯共混物的制备与表征  

Preparation and Characterization of Poly(ethylene2,5-furandicarboxylate)/Poly(butylene succinate) Blends

作　　者：陈英[1,2] 姜敏[2] 孙长江[3] 张强[2] 付志鹏[2] 徐蕾[1] 周光远[2] 

机构地区：[1]长春理工大学化学与环境工程系,长春130022 [2]中国科学院长春应用化学研究所,生态环境高分子材料重点实验室,长春130022 [3]吉林大学中日联谊医院,长春130022

出　　处：《应用化学》2015年第9期1022-1027,共6页Chinese Journal of Applied Chemistry

基　　金：国家自然科学(51103152)资助项目

摘　　要：通过熔融共混制备了聚2,5-呋喃二甲酸乙二醇酯(PEF)/聚丁二酸丁二醇酯(PBS)共混物,探究了制备PEF/PBS共混物的影响因素,考察了共混温度、共混时间、螺杆转速、共混比例对PEF/PBS共混物力学性能的影响因素,并用示差扫描量热仪、热失重、扫描电子显微镜等技术手段对其热性能和相容性进行了表征。结果表明,当PBS的含量为15%、共混温度为230℃,共混时间为90 s、螺杆转速为150 r/min时,为最佳共混制备条件,此时相容性最好,热性能良好,冲击强度和拉伸强度最大,冲击强度相对纯PEF提高了6倍,拉伸强度提高了近20%,从而大幅提高了PEF的冲击强度,有效地增强了PEF的抗冲击韧性。这些工作为这一生物基聚酯材料的应用提供了可能。Poly（ethylene 2,5-furandicarboxylate）（PEF）/poly（butylene succinate）（PBS） blends were obtained via melt blending, and the factors, such as the blending temperature, blending time, the screw speed and blending ratio on mechanical properties of PEF/PBS blends were studied in details. Their compatibility, thermal property, and mechanical property were investigated by scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis, and tensile testing and impact testing. When the content of PBS is 15%, the optimal blending processing conditions are mixing the blends at 230 ℃ for 90 s under the screw rotation speed of 150 r/min. Under the optimal conditions, the compatibility and thermal performance are good, the impact strength and tensile strength are the largest. Compared to PEF, the impact strength and the tensile strength of the blend increase 6 times and approximate 20%, respectively. The results in this work provide a new possibility for the application of biobased polymers.

关 键 词：聚呋喃二甲酸乙二醇酯 聚丁二酸丁二醇酯 共混 增韧 

分 类 号：O633.1[理学—高分子化学]