| PLA/MWNTs/HA复合材料的制备和性能研究 |
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| 引用本文： | 龚华俊,杨小平,隋刚,陈国强,唐劲天,邓旭亮,胡晓阳.PLA/MWNTs/HA复合材料的制备和性能研究[J].功能高分子学报,2005,18(1):99-104. |
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| 作者姓名： | 龚华俊 杨小平 隋刚 陈国强 唐劲天 邓旭亮 胡晓阳 |
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| 作者单位： | 北京化工大学国家碳纤维工程技术研究中心,北京,100029;中日友好医院,北京,100029;北京大学口腔医学院,北京,100081 |
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| 基金项目： | 国家863项目(2003AA302220)，国家自然科学基金资助项目(30471907) |
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| 摘 要： | 采用超声辅助原位湿法合成多壁碳纳米管／羟基磷灰石纳米复合材料(MWNTs／HA)，并通过溶液浇铸法制备了PLA／MWNTs／HA复合材料薄膜。考察了MWNTs／HA纳米粒子含量对复合膜性能的影响，并通过力学性能、SEM、FTIR、以及DMTA对复合膜性能进行了表征，结果表明：随着纳米粒子质量分数的增加，复合膜的拉伸强度呈下降趋势；拉伸模量和储能模量呈现先下降后上升的趋势；玻璃化转变温度则呈现不断上升趋势。
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| 关 键 词： | 多壁碳纳米管/羟基磷灰石 聚乳酸 溶液浇铸法 力学性能 |
| 文章编号： | 1008-9357(2005)01-0099-06 |
| 修稿时间： | 2004年8月6日 |
Preparation and Characterization of PLA/MWNTs/HA Composite Membranes |
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| GONG Hua-jun,YANG Xiao-ping,SUI Gang,CHEN Guo-qiang,TANG Jing-tian,DENG Xu-liang,HU Xiao-yang.Preparation and Characterization of PLA/MWNTs/HA Composite Membranes[J].Journal of Functional Polymers,2005,18(1):99-104. |
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| Authors: | GONG Hua-jun YANG Xiao-ping SUI Gang CHEN Guo-qiang TANG Jing-tian DENG Xu-liang HU Xiao-yang |
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| Institution: | GONG Hua-jun~1,YANG Xiao-ping~1,SUI Gang~1,CHEN Guo-qiang~2,TANG Jing-tian~2,DENG Xu-liang~3,HU Xiao-yang~3 |
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| Abstract: | MWNTs/HA composites were in situ synthesized by wet method with the help of ultrasonic, and PLA/MWNTs/HA composite membranes were prepared by solution casting method. The properties of PLA/MWNTs/HA composite membranes were characterized by SEM, FTIR, Tensile testing and DMTA. As the MWNTs/HA nano-composites content increased, the tensile strength of composite membranes decreased because of the agglomeration of MWNTs/HA nano-particles, tensile modulus and storage modulus first increased then decreased, and the glass transition temperature increased duo to polymer chain adsorption and immobilization onto the MWNTs/HA nano-particles. |
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| Keywords: | MWNTs/HA PLA solution casting method mechanical properties |
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