新型车用材料聚(丁二酸-co-己二酸丁二醇)共聚酯酶促降解性能研究  

Study on Enzymatic Degradation of Poly(Succinic Acid-co-Butylene Adipate)Copolyester as A New Vehicle Material

作　　者：马莹[1] 侯微 苏婷婷[3] MA Ying;HOU Wei;SU Ting-ting(Dalian Ocean University,Dalian 116023,China;Fushun Special Equipment Supervision and Inspection Institute of Liaoning Province,Fushun 113001,China;School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]大连海洋大学,辽宁大连116023 [2]辽宁省抚顺市特种设备监督检验所,辽宁抚顺113001 [3]辽宁石油化工大学石油化工学院,辽宁抚顺113001

出　　处：《塑料科技》2023年第1期95-100,共6页Plastics Science and Technology

基　　金：大连市社科联2022年第二批立项课题(2022dlskzd319)。

摘　　要：通过酯化和缩聚反应制备聚丁二酸丁二醇酯(PBS)、聚己二酸丁二醇酯(PBA)和聚(丁二酸-co-己二酸丁二醇)共聚酯(P(BS-co-BA)),对PBS、PBA和P(BS-co-BA)进行酶促降解研究。结果表明:与PBS和PBA相比,共聚酯具有良好的生物降解性能。6种聚酯酶水解速率依次为P(BS-co-40%BA)>P(BS-co-60%BA)>P(BS-co-80%BA)>P(BS-co-20%BA)>PBA>PBS。P(BS-co-40%BA)在10 h内基本完全降解,比PBS快26 h。与PBA相比,共聚酯的热稳定性得到提高,P(BS-co-40%BA)热分解50%的温度比PBA高22.3℃。随着降解时间的增加,共聚酯的化学结构、晶体结构和热稳定性基本不变,有利于其在新能源汽车设计中的应用。Poly(butylene succinate)(PBS),poly(butylene adipate)(PBA)and poly(butylene succinate-co-butylene adipate)(P(BS-co-BA))were prepared by esterification and polycondensation.The enzymatic degradation of PBS,PBA and P(BS-co-BA)was studied.The results show that the copolyester has good biodegradability compared with PBS and PBA.The hydrolysis rates of the six polyesterases are P(BS-co-40%BA)>P(BS-co-60%BA)>P(BS-co-80%BA)>P(BS-co-20%BA)>PBA>PBS.P(BS-co-40%BA)is almost completely degraded within 10 h,26 h faster than PBS.Compared with PBA,the thermal stability of the copolyester is improved,and the temperature of 50%thermal decomposition of P(BS-co-40%BA)is 22.3℃higher than that of PBA.With the increase of degradation time,the chemical structure,crystal structure and thermal stability of copolyester are basically unchanged,which is conducive to its application in the design of new energy vehicles.

关 键 词：生物塑料 聚丁二酸丁二醇酯 聚(丁二酸-co-己二酸丁二醇)共聚酯 酶水解 

分 类 号：TB332[一般工业技术—材料科学与工程]