二恶唑啉改性剑麻纤维增强聚乳酸复合材料的制备及性能研究  

Research on the Preparation and Properties of Bisoxazoline Modified Sisal Fibers Reinforced Polylactide Biocomposites

作　　者：兰碧 王烨烨 左成莉 吴宏武[1] LAN Bi WANG Ye-ye ZUO Cheng-li WU Hong-wu(The Key Laboratory of Polymer Processing Engineering of Ministry of Education, South China University of Technology, National Engineering Research Center of Novel Equipment for Polymer Processing, Guangzhou 510640, China)

机构地区：[1]聚合物成型加工工程教育部重点实验室华南理工大学聚合物新型成型装备国家工程研究中心,广东广州510640

出　　处：《塑料工业》2017年第10期37-42,59,共7页China Plastics Industry

摘　　要：以二恶唑啉(BO)为扩链剂,通过反应加工的方法对剑麻纤维进行界面改性,然后通过热压成型的方法制备了在不同的BO含量下,纤维质量分数分别为10%、20%、30%和40%的短剑麻纤维增强聚乳酸复合材料。研究了BO含量和剑麻纤维含量对短剑麻纤维增强聚乳酸复合材料力学性能的影响。研究结果表明,当纤维质量分数为30%、BO质量分数为1.0%时,所制备的复合材料力学性能最佳。其拉伸强度、弯曲强度以及冲击强度分别为66.76、117.09 MPa和4.61 kJ/m^2,比同样质量分数下,未加BO时剑麻纤维增强聚乳酸复合材料分别提高了34.4%、23.3%和19.1%。The sisal fibers were modified by bisoxazoline through the method of reaction processing, then at different levels of bisoxazoline, short sisal fiber reinforced laminated polylactide composites with different sisal fiber （SF） contents （10wt%, 20wt%, 30wt% and 40wt% ） were prepared by using compression molding technique. The effects of bisoxazoline and fiber contents on the mechanical properties of short sisal fiber reinforced polylactide composites were studied. The results show that when fiber content is 30wt% and bisoxazoline content is 1.0wt%, the mechanical properties of the composites are the best. And the tensile strength, flexural strength and impact strength of the composites reach 66.76 MPa, 117.09 MPa and 4. 61 kJ/m2, respectively, which are higher 34. 4%, 23.3% and 19. 1% than those of the sisal fiber reinforced polylactide composites without bisoxazoline.

关 键 词：二恶唑啉 剑麻纤维 聚乳酸 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]