柠檬酸改性苎麻纤维增强聚丁二酸丁二醇酯的性能研究  

Study on performance of ramie fiber⁃reinforced polybutylene succinate through treatment with citric acid

作　　者：孟承翰 罗皓文 刘昊 费继龙 杨健飞 杨振 贾良元 MENG Chenghan;LUO Haowen;LIU Hao;FEI Jilong;YANG Jianfei;YANG Zhen;JIA Liangyuan(School of Chemistry&Chemical Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学化学化工学院,合肥230009

出　　处：《中国塑料》2024年第12期54-59,共6页China Plastics

基　　金：中央高校基本科研业务费资助项目(S202310359127)。

摘　　要：采用柠檬酸(CA)对苎麻纤维(RF)进行改性制备苎麻纤维/聚丁二酸丁二醇酯(RF/PBS)生物复合材料。研究了CA处理后RF的热稳定性、结晶度和形貌的变化。讨论了CA处理对RF与PBS界面相互作用的机理。此外,制备了不同比例的CA-RF/PBS生物复合材料,根据其拉伸性能确定了CA-RF/PBS生物复合材料中CA-RF的最佳质量分数配比为8%,其拉伸强度和拉伸模量分别为44.1、563.3 MPa。同时还将CA-RF/PBS与醋酸(AA)和氢氧化钠(SH)改性的RF/PBS的力学性能进行了比较。结果表明,AA-和SH-RF/PBS生物复合材料拉伸强度分别为40.2 MPa和41.0 MPa,均逊于CA-RF/PBS生物复合材料的力学性能。In this study,citric acid(CA)was used to modify ramie fiber(RF),and then the polybutadiene succinate(PBS)/modified RF bio-composites were prepared.Changes in the thermal stability,crystallinity,and morphology of CA-modified RF were investigated.The mechanism for the interface interaction between the CA-modified RF and PBS was analyzed.The optimal content of CA-modified RF for the bio-composites was determined to be 8 wt%according to their tensile properties.The bio-composites obtained tensile strength and modulus of 44.1 and 563.3 MPa,respective-ly.Meanwhile,the mechanical properties were compared between the PBS/CA-modified RF bio-composites and the corresponding bio-composites with the acetic acid(AA)-and sodium hydroxide(SH)-modified RF.The results indicat-ed that PBS/AA-and SH-modified RF bio-composites presented tensile strength of 40.2 MPa and 41.0 MPa,respec-tively,both of which were lower than those of the PBS/CA-modified RF bio-composites.

关 键 词：柠檬酸 苎麻纤维 聚丁二酸丁二醇酯 生物复合材料 力学性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]