PBAT/PPC/nano-CaCO_(3)复合薄膜的制备与性能研究  

Preparation and Properties of PBAT/PPC/Nano-CaCO_(3) Composite Films

作　　者：庞启耀 赵阳 姜红 赖锦清 洪浩群[1] 谢东 PANG Qi-yao;ZHAO Yang;JIANG Hong;LAI Jin-qing;HONG Hao-qun;XIE Dong(School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China;Guangdong Biomaterials Engineering Technology Research Center,Institute of Biological and Medical Engineering,Guangdong Academy of Sciences,Guangzhou 510316,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510006 [2]广东省科学院生物与医学工程研究所,广东省生物材料工程技术研究中心,广东广州510316

出　　处：《塑料科技》2022年第2期1-5,共5页Plastics Science and Technology

基　　金：广东省甘蔗剑麻产业体系创新团队项目(2021KJ104);广东省高性能与功能高分子材料重点实验室开放基金项目(20170004);广东省科学院科技创新专项项目(2020GDASYL-20200103063);2021广东省乡村振兴战略专项资金项目。

摘　　要：通过挤出吹膜制备聚己二酸-对苯二甲酸丁二醇酯/聚碳酸亚丙酯/纳米碳酸钙(PBAT/PPC/nano-CaCO_(3))复合薄膜,研究nano-CaCO_(3)的填充量对复合薄膜的结构、热学性能、力学性能和阻隔性能的影响。结果表明:nano-CaCO_(3)优先分布在PBAT相,并提高PBAT的结晶温度。nano-CaCO_(3)可以提高复合薄膜的初始降解温度。随着nano-CaCO_(3)填充量的增加,复合薄膜的拉伸强度和断裂伸长率先增加后降低,当nano-CaCO_(3)填充量为15%,复合薄膜的力学性能最佳,纵向(MD)、横向(TD)拉伸强度分别为20.4 MPa、17.3 MPa,断裂伸长率分别为579%、519%。nano-CaCO_(3)的加入能够提升复合薄膜的水蒸气和氧气阻隔性能。Poly(adipic acid-butylene terephthalate)/poly(propylene carbonate)/nano calcium carbonate(PBAT/PPC/nano-CaCO_(3)) composite films were prepared by extrusion blowing.The effects of nano-CaCO_(3)content on the structure,thermal properties,mechanical properties and barrier properties of composite films were studied.The results show that nano-CaCO_(3) preferentially distributes in PBAT phase and increases crystallization temperature of PBAT.Nano-CaCO_(3) can improve initial degradation temperature of composite films.With the increasing of nano-CaCO_(3) content,the tensile strength and elongation at break of composite films first increase and then decrease.When nano-CaCO_(3) content is 15%,the mechanical properties of composite films are the best.The tensile strength of longitudinal(MD)and transverse(TD)are 20.4 MPa and 17.3 MPa,and the elongation at break are 579%and 519%,respectively.The addition of nano-CaCO_(3) can improve water vapor and oxygen barrier properties of composite films.

关 键 词：聚己二酸-对苯二甲酸丁二醇酯 聚碳酸亚丙酯 纳米碳酸钙 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]