| 简单有效筛选纤维表面改性剂的实验方法 |
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| 引用本文： | 周密,程飞,邓莎.简单有效筛选纤维表面改性剂的实验方法[J].实验技术与管理,2019(3):71-75. |
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| 作者姓名： | 周密 程飞 邓莎 |
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| 作者单位： | 四川大学轻纺与食品学院 |
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| 基金项目： | 国家自然科学基金项目(51603134);四川大学2017年实验技术立项项目(20170099;20170096) |
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| 摘 要： | 通过用不同的表面改性剂(氢氧化钠,硅烷偶联剂,马来酸酐,乙酸酐和多巴胺)处理单根苎麻纤维,然后再通过单纤维断裂实验测出界面剪切强度(IFSS)来评估纤维与聚丁二酸丁二醇酯(PBS)基体之间的界面相互作用。通过这种简单的方法,很容易地筛选出制备PBS/苎麻纤维可生物降解复合材料的有效表面改性剂,即多巴胺。为了进一步验证单纤维断裂实验确实是筛选表面改性剂的有效方法,对未处理、碱处理和多巴胺处理苎麻纤维增强PBS复合材料的力学性能进行了研究,结果表明复合材料力学性能的变化趋势和单纤维断裂实验得到的界面剪切强度的变化趋势是一致的。因此,单纤维断裂实验确实是衡量表面改性与界面增强的一种简单且有效的方法。
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| 关 键 词： | 表面改性剂 多巴胺 聚丁二酸丁二醇酯 单纤维断裂实验 |
Simple and effective method for selection of fiber surface modifiers |
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| ZHOU Mi,CHENG Fei,DENG Sha.Simple and effective method for selection of fiber surface modifiers[J].Experimental Technology and Management,2019(3):71-75. |
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| Authors: | ZHOU Mi CHENG Fei DENG Sha |
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| Institution: | (College of Light Industry,Textile and Food Engineering,Sichuan University,Chengdu 610065,China) |
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| Abstract: | A single ramie fiber is firstly treated by the various surface modification agents (sodium hydroxide,silane coupling agent,maleic anhydride,acetic anhydride and dopamine). Then the single fiber fragmentation is carried out to evaluate the interfacial interaction between the fiber and poly (butylene succinate)(PBS) matrix by means of interfacial shear strength (IFSS). In this simple way,dopamine is easily selected as the good surface modification agent for the preparation of PBS/ramie fibers biocomposites. In order to verify that the single fiber fragmentation is an effective method for the selection of good surface modification agent,mechanical properties of the prepared PBS/ramie fibers,PBS/alkali treated ramie fiber and PBS/dopamine treated ramie fiber composites are investigated. It is found that the trend of mechanical properties of the three composites is well consistent with that of IFSS obtained through the single fiber fragmentation measurement. Therefore,single fiber fragmentation test can be used as an effective and simple method to evaluate surface modification and interfacial enhancement as well. |
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| Keywords: | surface modifier dopamine polybutylene succinate single fiber breaking experiment |
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