摘要
采用连续式蒸汽爆破法对棉皮纤维进行预处理,将其与聚丁二酸丁二醇酯(PBS)进行共混,制备了PBS/棉皮纤维复合材料。利用扫描电镜对棉皮纤维及PBS/棉皮纤维复合材料的微观形貌进行了分析,并研究了棉皮纤维含量对PBS/棉皮纤维复合材料熔融及结晶行为、热降解性能、热变形温度以及力学性能的影响。结果表明:经蒸汽爆破处理后,棉皮纤维直径变小,比表面积变大,在PBS基体中分散均匀;棉皮纤维的存在改变了PBS的熔融峰值温度,提高了其结晶度;与纯PBS相比,PBS/棉皮纤维复合材料在高温条件下的热稳定性得到改善维,卡软化温度和弯曲强度提高。
The cotton stalk bast fiber（CSBF） was modified by continuous steam explosion,and then was used to prepare poly（butylene succinate）（PBS） /CSBF composite.The microstructures of CSBF and PBS/CSBF composite were studied by SEM.The effects of CSBF content on the melting and crystallization behavior,thermal degradation property,heat deflection temperature,and mechanical properties of PBS/CSBF composite were investigated.The results show that the diameter of CSBF decreases,the specific surface area increases,and the dispersion in PBS matrix becomes uniform after contious steam explosion;the addition of CSBF changes the melting peak temperature of PBS and increases its crystallinity;compared with neat PBS,the thermal stability of PBS/CSBF composite under higher temperature range is improved,and both Vicat softening temperature and flexural strength increase.
出处
《塑料科技》
CAS
北大核心
2011年第10期74-78,共5页
Plastics Science and Technology
基金
国家自然科学基金资助项目(50903033
10872071
50973035)
国家科技支撑计划项目(2009BAI84B05
2009BAI84B06)
关键词
连续式蒸汽爆破
棉皮纤维
聚丁二酸丁二醇酯
热性能
力学性能
Continuous steam explosion
Cotton stalk bast fibers
PBS
Thermal properties
Mechanical properties
