| 萨日娜,王文才,王磊,宋季,田明.对位芳纶纤维的表面修饰及其与橡胶粘合性能的研究[J].橡胶科技,2018,16(6):10-18. |
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| 对位芳纶纤维的表面修饰及其与橡胶粘合性能的研究 |
| Surface Modification of Para-aramid Fiber and Its Adhesion to Rubber |
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| DOI： |
| 中文关键词: 对位芳纶纤维 表面修饰 粘合性能 多巴胺 偶联剂 乙二醇二缩水甘油醚 |
| 英文关键词: para-aramid fiber surface modification adhesion dopamine coupling agent ethylene glycol diglycidyl ether |
| 基金项目: |
| 中图分类号:TQ330.38＋9 |
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| 摘要点击次数: 748 |
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| 中文摘要: |
| 采用多巴胺仿生修饰及二次功能化处理方法，对对位芳纶（PPTA）纤维进行表面改性，研究改性前后PPTA纤维与橡胶的粘合性能。结果表明：经多巴胺溶液浸泡4 h后，PPTA纤维表面沉积了聚多巴胺层；用偶联剂KH570和乙二醇二缩水甘油醚（EGDE）二次功能化处理后，在PPTA纤维表面分别引入C=C和环氧官能团；多巴胺仿生修饰、偶联剂KH570二次功能化处理的PPTA纤维经间苯二酚-甲醛-胶乳（RFL）浸渍液浸渍处理后，其抽出力比未改性PPTA纤维提高83.6%；PPTA纤维用多巴胺仿生修饰、EGDE二次功能化处理和RFL浸渍液浸渍的效果优于传统二浴法浸渍的效果。 |
| 英文摘要: |
| The surface modification of para-aramid fiber（PPTA） was carried out by using dopamine biomimetic modification and secondary functionalization and the adhesion between PPTA fiber and rubber was studied. The results showed that the polydopamine layer was deposited on the surface of PPTA fibers after soaking with dopamine solution for 4 h. After secondary functionalization with coupling agent KH570 and ethylene glycol diglycidyl ether（EGDE），C=C and epoxy functional groups were introduced on the fiber surface，respectively. The PPTA fibers modified by dopamine and secondary functionalized by coupling agent KH570 were then impregnated by using RFL impregnation solution，and it was found that the pull-out force of the surface modified PPTA fiber was increased by 83.6% compared with that of unmodified fiber. It was demonstrated that the surface modification by dopamine and EGDE and then impregnation by RFL solution provided better effect on the adhesion than the traditional two-bath impregnation process. |
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