| 竹纤维/聚乳酸复合材料界面调控 |
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| 引用本文： | 李新功,郑霞,吴义强. 竹纤维/聚乳酸复合材料界面调控[J]. 复合材料学报, 2012, 29(4): 94-98 |
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| 作者姓名： | 李新功 郑霞 吴义强 |
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| 作者单位： | 中南林业科技大学 材料科学与工程学院, 长沙 410004 |
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| 基金项目： | 湖南省科技重大专项，市校产学研合作产业化培育项目，国家林业局948项目 |
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| 摘 要： | 分别采用碱(NaOH)处理、 异氰酸酯(MDI)处理以及NaOH+MDI处理的界面调控方法对竹纤维/聚乳酸复合材料界面进行调控。结果表明, NaOH处理可以进一步细化竹纤维, 增加比表面积, 实现对竹纤维/聚乳酸复合材料界面的物理调控; MDI处理能够实现对复合材料界面的化学调控; 三种界面调控方法均可以改善竹纤维/聚乳酸复合材料的力学性能, 而NaOH+MDI界面调控效果最佳, 调控处理后复合材料拉伸强度和冲击强度分别增加了36.9%和36.5%。
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| 关 键 词： | 竹纤维(BF) 聚乳酸 复合材料 界面调控 力学性能 |
| 收稿时间： | 2011-07-23 |
Interface control of bamboo fibers/polylactic acid composites |
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| LI Xingong,ZHENG Xia,WU Yiqiang. Interface control of bamboo fibers/polylactic acid composites[J]. Acta Materiae Compositae Sinica, 2012, 29(4): 94-98 |
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| Authors: | LI Xingong ZHENG Xia WU Yiqiang |
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| Affiliation: | College of Materials Science & Engineering, Central South University of Forestry & Technology, Changsha 410004, China |
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| Abstract: | The interface of the bamboo fibers/polylactic acid was controlled by alkali(NaOH) treatment,isocyanate(MDI) treatment and NaOH+MDI treatment,respectively.The results show that the NaOH treatment could further refine bamboo fibers and increase specific surface area,realizing the physical control of bamboo fibers/polylactic acid composites interface;MDI treatment could realize the chemical control of bamboo fibers/polylactic acid composites interface.All of the three kinds of the interface control methods could improve the mechanical properties of bamboo fibers/polylactic acid composites,among which NaOH+MDI treatment has the best positive effects on the interface properties of the composites,the tensile strength and impact strength of the bamboofibers/polylactic acid composites with interface control are increased 36.9% and 36.5%,respectively. |
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| Keywords: | bamboo fibers(BF) polylactic acid composites interface control mechanical properties |
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