| PBO纤维表面超声化学处理工艺及作用机理 |
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| 引用本文： | 栾燕燕,刘雪峰,谢建新.PBO纤维表面超声化学处理工艺及作用机理[J].高分子材料科学与工程,2009(9). |
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| 作者姓名： | 栾燕燕 刘雪峰 谢建新 |
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| 作者单位： | 北京科技大学材料科学与工程学院; |
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| 基金项目： | 教育部“新世纪优秀人才支持计划”资助项目(NCET-06-0083) |
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| 摘 要： | 研究了多聚磷酸无水乙醇溶液和超声波附加作用处理聚对苯撑苯并双口恶唑(PBO)纤维表面的工艺。利用扫描电镜和纤维电子强力仪等评价了表面处理后PBO纤维的表面形貌、拉伸强度以及与环氧树脂的界面结合性能等,探讨了PBO纤维超声化学表面作用机理。结果表明,当多聚磷酸与无水乙醇体积比为1∶1、超声设备功率54W、反应时间4min时,PBO纤维的表面处理均匀,与原丝相比,单丝拉伸强度只降低了5.7%,而单丝拔出强度则提高了67.2%。超声波的空化作用导致溶液中多聚磷酸分子分散均匀性提高、羟基自由基含量增加,以及纤维表面粗糙度提高,是PBO纤维表面处理质量改善的主要原因。
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| 关 键 词： | 聚对苯撑苯并双口恶唑纤维 超声化学 表面处理 |
Process and Action Mechanism of Sonochemical Surface Treatment of PBO Fibers |
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| LUAN Yan-yan,LIU Xue-feng,XIE Jian-xin.Process and Action Mechanism of Sonochemical Surface Treatment of PBO Fibers[J].Polymer Materials Science & Engineering,2009(9). |
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| Authors: | LUAN Yan-yan LIU Xue-feng XIE Jian-xin |
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| Affiliation: | LUAN Yan-yan,LIU Xue-feng,XIE Jian-xin(School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | The process and action mechanism of surface treatment of p-phenylene-2,6-benzobisoxazole (PBO) fibers had been investigated under the conditions of ultrasonic wave and the mixed solution of polyphosphoric acid (PPA) and ethanol. The surface morphology,tensile property and interfacial adhesion between fiber and resins were characterized by scanning electron microscope (SEM) and electronic tester of tensile strength for fibers after treatment. The results show that the surface morphology of PBO fibers had bee... |
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| Keywords: | PBO fiber sonochemistry surface treatment |
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