| 溶液共混法制备TiO_2/PBO纳米复合材料 |
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| 引用本文： | 谢众,庄启昕,毛晓阳,刘小云,钱军,韩哲文. 溶液共混法制备TiO_2/PBO纳米复合材料[J]. 中国有色金属学报, 2011, 21(3) |
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| 作者姓名： | 谢众 庄启昕 毛晓阳 刘小云 钱军 韩哲文 |
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| 作者单位： | 华东理工大学特种功能高分子材料及相关技术教育部重点实验室,上海200237;华东理工大学材料科学与工程学院,上海200237 |
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| 基金项目： | 国家自然科学基金资助项目(50973028,50703010) |
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| 摘 要： | 以甲基磺酸(MSA)作为溶剂,采用溶液共混法制备二氧化钛/聚亚苯基苯并二噁唑(TiO2/PBO)纳米复合材料;研究超声功率和超声时间对纳米TiO2/MSA悬浮液分散性的影响;并通过傅立叶红外光谱(FTIR)、热重分析(TGA)、扫描电镜(SEM)和紫外吸收光谱(UV)方法表征复合材料的结构特性。结果表明:当超声功率为250 W和超声时间为15 min时,纳米粒子在MSA中的分散性最佳;在红外图谱中,当TiO2的质量分数达到5%时,TiO2/PBO纳米复合材料与纯PBO的红外光谱无明显差别,说明纳米TiO2和PBO基体是通过物理作用连接起来的;与纯PBO相比,复合材料具有更优异的耐热性能,表现为热分解温度从PBO的689℃依次增高到690℃(1%TiO2)、694℃(5%TiO2)和698℃(10%TiO2)。由于纳米TiO2优异的紫外屏蔽性能,复合材料的吸光度在200~400 nm波段显著增大,因此,复合材料的抗老化性能也得到了极大的提高。
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| 关 键 词： | 纳米二氧化钛 分散性 溶液共混 紫外线屏蔽 |
Preparation of TiO_2/PBO nano-composites by solution blending method |
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| XIE Zhong,ZHUANG Qi-xin,MAO Xiao-yang,LIU Xiao-yun,QIAN Jun,HAN Zhe-wen. Preparation of TiO_2/PBO nano-composites by solution blending method[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(3) |
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| Authors: | XIE Zhong ZHUANG Qi-xin MAO Xiao-yang LIU Xiao-yun QIAN Jun HAN Zhe-wen |
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| Affiliation: | XIE Zhong1,2,ZHUANG Qi-xin1,MAO Xiao-yang1,LIU Xiao-yun1,QIAN Jun1,HAN Zhe-wen1,2(1.Key Laboratory for Specially Functional Polymeric Materials and Related Technology,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China,2.School of Materials Science and Engineering,China) |
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| Abstract: | TiO2/PBO(poly-p-phenylene benzobiythiazole) nano-composites were prepared by solution blending in MSA solvent.The effects of the ultrasonic power and ultrasonic time on the dispersion of nano TiO2 in MSA were studied.The structure and properties of composites were characterized by FTIR,TGA,SEM and UV.The results show that when the suspension ultrasonic power is 250 W with ultrasonic time of 15 min,the dispersion of nanoparticles in MSA is optimal.In the FTIR spectra,nano-composites display no distinguishabl... |
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| Keywords: | nano TiO2 dispersion solution blending ultraviolet shielding |
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