| 热塑性聚氨酯中空纤维/SiO2气凝胶隔热材料的制备及性能研究 |
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| 引用本文： | 董永全,王鸣,李明俊,唐星华.热塑性聚氨酯中空纤维/SiO2气凝胶隔热材料的制备及性能研究[J].陶瓷学报,2011,32(1). |
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| 作者姓名： | 董永全 王鸣 李明俊 唐星华 |
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| 作者单位： | 南昌航空大学材料化学系,江西,南昌,330063 |
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| 基金项目： | 国家自然科学基金，航空科学基金，江西省教育厅科技项目，南昌市重点科技攻关项目 |
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| 摘 要： | 以热塑性聚氨酯中空纤维为增韧材料,正硅酸乙酯为硅源,采用溶胶-凝胶技术制备了热塑性聚氨酯中空纤维/SiO2气凝胶隔热材料.考察了纤维类型、中空纤维铺设方式、中空纤维规格对SiO2气凝胶隔热性能的影响.结果表明:中空纤维增韧SiO2气凝胶的隔热性能略低于纯SiO2气凝胶,但其韧性有了显著提高.中空纤维垂直铺设,采用合适的内径及壁厚的中空纤维能获得较好隔热性能的SiO2气凝胶隔热材料.
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| 关 键 词： | SiO2气凝胶 隔热材料 中空纤维 溶胶-凝胶 |
STUDY ON PREPARATION AND PERFORMANCE OF SiO2 AEROGEL INSULATING MATERIALS REINFORCED BY THERMOPLASTIC POLYURETHANE HOLLOW FIBERS |
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| Dong Yongquan,Wang Ming,Li Mingjun,Tang Xinghua.STUDY ON PREPARATION AND PERFORMANCE OF SiO2 AEROGEL INSULATING MATERIALS REINFORCED BY THERMOPLASTIC POLYURETHANE HOLLOW FIBERS[J].Journal of Ceramics,2011,32(1). |
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| Authors: | Dong Yongquan Wang Ming Li Mingjun Tang Xinghua |
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| Affiliation: | Dong Yongquan Wang Ming Li Mingjun Tang Xinghua(Department of materials chemistry Nanchang Hangkong University,Nanchang Jiangxi 330063,China) |
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| Abstract: | SiO2 aerogel insulating materials were prepared by sol-gel process and drying under ambient pressure,using tetraethoxysilane(TEOS) as precursor and thermoplastic polyurethane hollow fiber as phase of reinforcement.The effects of different types of fibers,laying ways of hollow fibers and specifications of hollow fibers on the thermal insulation of SiO2 aerogels were investigated.The results show that the thermal conductivity of the SiO2 aerogels reinforced by TPU hollow fibers decreased slightly,while its st... |
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| Keywords: | SiO2 aerogel insulating material hollow fiber sol-gel |
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