可生物降解塑料PBAT改性进展  

Research Progress of Modification of Biodegradable Plastic PBAT

作　　者：王志文 刘湘怡 代希阳 罗耀威 卢翠红 张跃飞[1] WANG Zhiwen;LIU Xiangyi;DAI Xiyang;LUO Yaowei;LU Cuihong;ZHANG Yuefei(School of Chemistry and Chemical Engineering,Changsha University of Science and Technology,Changsha,Hunan 410114,China)

机构地区：[1]长沙理工大学,化学化工学院,湖南长沙410114

出　　处：《塑料》2023年第4期178-182,共5页Plastics

基　　金：国家级大学生创新创业训练计划支持项目(2021105360016)。

摘　　要：聚己二酸对苯二甲酸丁二酯(PBAT)是一种极具应用前景的可生物降解塑料,但是,由于PBAT存在的结晶性能较低、黏度较大、价格高昂等问题,限制了其在工业生产中的进一步应用。熔融共混是解决上述问题的重要方法,因此,通常在PBAT中引入CaCO_(3)、聚乳酸(PLA)、聚碳酸亚丙酯(PPC)、改性淀粉等合适的填料和可降解高分子材料进行熔融共混,制备PBAT复合材料,改善PBAT的综合性能、降低生产成本,从而满足工业应用的要求。综述了近年来通过填充填料对PBAT进行改性研究的进展,主要包含共混改性对PBAT力学性能、流变性能、熔融和结晶性能的影响,为新型、高效的可生物降解塑料复合材料的设计和开发奠定理论基础。Poly(butylene adipate terephthalate)(PBAT) is a biodegradable plastic with great application prospect.However,its low crystallization performance,high viscosity and high price limit its further application in industrial production.Melt blending is an important method to solve the above problems.Therefore,suitable fillers and polymers such as CaCO_3,polylactic acid(PLA),polypropyl carbonate(PPC) and modified starch are usually introduced into PBAT for melt blending to prepare PBAT composite materials to improve the comprehensive performance of PBAT,reduce production costs and meet the requirements of industrial applications.The research progress of PBAT modified by fillers in recent years was reviewed,mainly including the influence of fillers modification on mechanical properties,rheological properties,melting and crystallization properties of PBAT,in order to lay a theoretical foundation for the design and development of new and efficient biodegradable plastic composite.

关 键 词：可生物降解塑料 PBAT 填料 熔融共混 性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]