基于3D打印PLA/PBS/山茶籽粉复合材料的制备及其吸附应用性能研究  

The Study of the Preparation and Adsorption Application of PLA/PBS/Camellia Seed Powder Composites Based on 3D Printing

作　　者：郑荧炼 肖荔人[2] 夏新曙[1] 曹长林 刘欣萍[1] 钱庆荣[1,3,4] 陈庆华 ZHENG Ying-lian;XIAO Li-ren;XIA Xin-shu;CAO Chang-lin;LIU Xin-pin;QIAN Qing-rong;CHEN Qing-hua(College of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,China;College of Chemistry and Materials,Fujian Normal University,Fuzhou 350007,China;Engineering Research Center of Polymer Green Recycling of Ministry of Education,Fujian Normal University,Fuzhou 350007,China;Fujian Key Laboratory of Pollution Control&Resource Reuse,Fuzhou 350007,China)

机构地区：[1]福建师范大学环境科学与工程学院,福建福州350007 [2]福建师范大学化学与材料学院,福建福州350007 [3]福建师范大学聚合物资源绿色循环利用教育部工程研究中心,福建福州350007 [4]福建省污染控制与资源循环利用重点实验室,福建福州350007

出　　处：《塑料工业》2021年第6期153-158,共6页China Plastics Industry

基　　金：国家重点研发计划资助(2019YFC1908200);福建省科技资助项目(2018Y4002)。

摘　　要：采用聚乳酸(PLA)、聚丁二酸丁二醇酯(PBS)及山茶籽粉(CSP)制备熔融沉积成型(FDM)三维(3D)打印线材并打印成制品。采用扫描电子显微镜(SEM)、万能拉伸试验机、差示扫描量热仪(DSC)、旋转流变仪和接触角测试仪等分析手段分别研究了PLA/PBS/CSP复合材料结构和性能的变化,并以亚甲基蓝(MB)为模拟污染物,研究其3D制品的吸附能力。结果表明,少量CSP(5 phr)可起到异相成核作用,增大结晶度;且复合材料的拉伸强度略有提升。当CSP含量为30 phr时,复合材料实现"类液"向"类固"转变,形成网络结构。该网络结构的形成有利于提高PLA/PBS/CSP复合材料的亲水性,促进了MB分子在材料中的传递,明显加快了吸附速率。该3D打印材料具有用做废水处理吸附剂的潜力。Polylactic acid(PLA),polybutylene succinate(PBS)and camellia seed powder(CSP)blends were employed for preparing three dimensional(3 D)printing filament of fused deposition molding(FDM)and then manufactured as 3 D printing products.The structure-properties changes of PLA/PBS/CSP composites were investigated through scanning electron microscope(SEM),universal tensile testing machine,differential scanning calorimeter(DSC),rotational rheometer and contact angle tester.And the adsorption performance for methylene blue(MB)on the 3 D-printed model was also carried out.The results show that crystallinity of PLA is enhanced by adding a few CSP(5 phr),due to the heterogeneous nucleation effect of CSP for PLA.Meanwhile,the tensile strength is also improved a little.When the content of CSP is 30 phr,the composites transform from"liquid-like"to"solid-like",revealing the formation of network structure.The formed network structure could enhance the hydrophilicity of PLA/PBS/CSP composites,thus accelerating the transmission of MB molecules in the composites.Consequently,the adsorption efficiency of the composites is improved,which could be a candidate for effluent treatment.

关 键 词：山茶籽粉 聚乳酸 聚丁二酸丁二醇酯 3D打印 亚甲基蓝 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]