PBS/PBAT共混型全生物降解材料的制备及其性能研究  

Preparation and Properties of Fully Biodegradable Poly(butylene succinate)/Poly(butylene adipate terephthalate) Blends

作　　者：吕怀兴[1] 杨彪[1] 许国志[1] 

机构地区：[1]北京工商大学材料科学与工程系,北京100048

出　　处：《中国塑料》2009年第8期18-21,共4页China Plastics

基　　金：国家"863"计划项目(2006AA100216);科技部科研院所技术开发研究专项(NCSTE-2007-JKZX-016)

摘　　要：通过熔融共混法制备了聚丁二酸丁二醇酯(PBS)/聚己二酸对苯二甲酸丁二酯(PBAT)共混物,用熔体流动速率仪、差示扫描量热仪、X射线衍射仪、扫描电镜及力学性能测试等手段研究了PBS/PBAT共混物的熔体流动性、结晶性能、力学性能以及共混物相容性。结果表明,随着PBAT含量的增加,PBS/PBAT共混体系的拉伸强度先升高后降低,断裂伸长率不断提高,冲击强度先降低后提高;当PBAT含量为20%(质量分数,下同)时,与纯PBS相比,断裂伸长率提高了10倍,冲击强度提高了82%,而拉伸强度仅降低6%。Fully biodegradable poly （butylenes succinate）/poly （ butylenes adipate terephthalate） （PBS/ PBAT） blends were prepared via melt mixing. The melt flowability, crystallization behavior, mechanical properties, and compatibility of the blends were studied with MFR, DSC, XRD, SEM, and mechanical property test. With increasing PBAT content, the tensile strength increased first and then decreased slightly, the impact strength decreased first and then increased, the elongation at break kept increase＆ When the loading of PBAT was 20 wt%, impact strength increased by 82 %, elongation at break in- creased by 1 000 %, tensile strength decreased only by 6 %, compared with neat PBS.

关 键 词：全生物降解塑料 聚丁二烯丁二醇酯 聚己二酸对苯二甲酸丁二酯 结晶 性能 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]