摘要
采用碱处理法、接枝法对蔗渣纤维表面进行改性,并用正交试验优化蔗渣与氨基三乙酸接枝共聚反应的工艺条件。利用傅里叶变换红外光谱、扫描电子显微镜、电子式万能试验机表征了处理前后蔗渣纤维的表面结构和表面形貌、聚乙烯醇(PVA)/淀粉复合材料断面形貌及拉伸强度。结果表明:碱处理法和接枝法改性有效提高了蔗渣纤维的表面活性,碱处理和接枝处理蔗渣与PVA/淀粉复合材料的拉伸强度分别提高了30.7%和96.7%。
Using alkaline treatment and grafting method, the bagasse fiber surface were modified, and the reaction conditions for graft copolymerization of bagasse and aminotriacetic acid were optimized by orthogonal test. The surface structure and surface morphology, section morphology and tensile strength of PVA/starch composite filled with bagasse fiber before and after treatment were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and electronic universal testing machine. The results show that alkali treatment and grafting modification can effectively improve the surface activity of bagasse fiber, and the tensile strength of PVA/starch/bagasse fiber composites increases by 30.7% and 96.7% through alkali treatment and graft copolymerization respectively.
出处
《塑料科技》
CAS
北大核心
2015年第11期60-64,共5页
Plastics Science and Technology
基金
广东省部产学研合作专项资金项目(2013B090500085)
广东省公益研究与能力建设专项项目(2014B030303004)
广州市海珠区科技计划项目(2013-cg-10)
关键词
聚乙烯醇
淀粉
蔗渣纤维
碱处理
接枝共聚
复合材料
PVA
Starch
Bagasse fiber
Alkali treatment
Graft copolymerization
Composites
