| 抗紫外老化聚对苯撑苯并二噁唑(PBO)纤维的制备与表征 |
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| 引用本文： | 张涛,金俊弘,杨胜林,李光,江建明. 抗紫外老化聚对苯撑苯并二噁唑(PBO)纤维的制备与表征[J]. 化学学报, 2010, 68(2): 199-204 |
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| 作者姓名： | 张涛 金俊弘 杨胜林 李光 江建明 |
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| 作者单位： | 纤维材料改性国家重点实验室东华大学材料科学与工程学院,上海,201620 |
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| 基金项目： | 国家自然科学基金(No.50673017);;上海市重点学科建设项目(No.B603);;高等学校学科创新引智计划培育(No.111-2-04)资助项目 |
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| 摘 要： | 通过化学添加2,5-二羟基对苯二甲酸(DHTA)共聚,以及添加金红石型纳米TiO2物理共混的方法,制备了聚对苯撑苯并二噁唑(PBO)的抗紫外改性纤维.考察了纤维的力学性能、特性粘度及表面形貌在紫外老化过程中的变化,并结合PBO纤维紫外加速老化后的红外分析,对PBO纤维的光老化机理进行了初步研究.结果表明,本实验所制备的DHPBO纤维以及DHPBO/n-TiO2纤维的抗紫外老化能力明显高于PBO纤维,并且金红石型纳米TiO2对PBO的抗紫外改性效果要优于有机紫外吸收剂(2,2'-(1,2-乙烷二基)双(4,1-亚苯基)双苯并噁唑).
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| 关 键 词： | PBO纤维 抗紫外老化 力学性能 降解机理 |
| 收稿时间： | 2009-06-06 |
| 修稿时间： | 2009-07-24 |
Preparation and Characterization of Poly(p-phenylene benzobisoxazole) (PBO) Fiber with Anti-ultraviolet Aging |
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| Zhang,Tao,Jin,Junhong,Yang,Shenglin,Li,Guang,Jiang,Jianming. Preparation and Characterization of Poly(p-phenylene benzobisoxazole) (PBO) Fiber with Anti-ultraviolet Aging[J]. Acta Chimica Sinica, 2010, 68(2): 199-204 |
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| Authors: | Zhang Tao Jin Junhong Yang Shenglin Li Guang Jiang Jianming |
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| Affiliation: | State Key Laboratory for Modification of Chemical Fibers and Polymer Materials;College of Material Science & Engineer-ing;Donghua University;Shanghai 201620 |
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| Abstract: | The modified poly(p-phenylene benzobisoxazole)(PBO) fibers,which exhibit anti-ultraviolet properties,were prepared by chemical copolymerization and physical blend methods.Mechanical property,intrinsic viscosity,SEM and ATR-FTIR techniques were used to characterize the fiber change before and after UV accelerated aging.Based on ATR-FTIR of PBO fibers before and after UV exposure,the UV aging degradation mechanism of PBO fiber was proposed.The results indicate that the DHPBO and DHPBO/n-TiO2 fibers show signi... |
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| Keywords: | PBO fiber anti-UV aging mechanical property degradation mechanism |
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