| Comparison of Effects of Different Organo-montmorillonites on PA 66/Clay Nanocomposites |
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| 作者姓名： | 何素芹 郭建国 康鑫 杜萍 朱诚身 |
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| 作者单位： | [1]College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 [2]College of Materials Science and Engineering, Donghua University, Shanghai 200051 |
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| 基金项目： | 河南省高等学校优秀青年教师教学科研奖励计划;教育部留学回国人员科研启动基金 |
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| 摘 要： | Different organo-montmorillonites （OMMTs） are prepared by modifying montmorillonites （MMTs） with CTAB, PA 1010 salts/CTAB, PEG/CTAB, PVA/CTAB, PVP, PVP/ CTAB and PA 6/CTAB, respectively. These OMMTs were studied by X-ray diffraction and TG. The gallery sizes of them are all larger than that of sodium MMTs. And the decomposition temperatures of them are all much higher than that of MMT and the processing temperature of PA 66, especially OM - 6 and OM - 7, the decomposition temperatures of which are 451.6℃ and 439.1℃, almost the collapse temperature of the native MMT crystal lattice which is more than 5080C. Then PA 66/Clay nanocomposites were synthesized by mixing these OMMTs with PA 66 matrix via melt intercalation. Experimental results indicate that the tensile and flexural properties increase significantly, especially those of PCN - 08. The combination property of PCN- 08 is the best. TEaM photos show that some clay platelets are present in the matrix as exfollated layers, while most of the clay platelets are present as intercalated layers.
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| 关 键 词： | 蒙脱石 PA66 纳米复合材料 熔化插入 粘土 |
| 收稿时间： | 2004-12-24 |
Comparison of Effects of Different Organo-montmorillonites on PA 66/ Clay Nanocomposites |
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| HE Su-qin,GUO Jian-guo,KANG Xin,DU Pin,ZHU Cheng-shen.Comparison of Effects of Different Organo-montmorillonites on PA 66/Clay Nanocomposites[J].Journal of Donghua University,2005,22(5):107-111. |
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| Authors: | HE Su-qin GUO Jian-guo KANG Xin DU Pin ZHU Cheng-shen |
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| Abstract: | Different organo-montmorillonites (OMMTs) are preparedby modifying montmorillonites (MMTs) with CTAB, PA1010 salts/CTAB, PEG/CTAB, PVA/CTAB, PVP, PVP/CTAB and PA 6/CTAB, respectively. These OMMTs were studied by X-ray diffraction and TG. The gallery sizes of them are all larger than that of sodium MMTs. And the decomposition temperatures of them are all much higher than that of MMT and the processing temperature of PA 66,especially OM- 6 and OM- 7, the decomposition temperatures of which are 451.6℃ and 439.1℃, almost the collapse temperature of the native MMT crystal lattice which is more than 500℃. Then PA 66/Clay nanocomposites were synthesized by mixing these OMMTs with PA 66 matrix via melt intercalation. Experimental results indicate that the tensile and flexural properties increase significantly,especially those of PCN - 08. The combination property of PCN- 08 is the best. TEM photos show that some clay platelets are present in the matrix as exfoliated layers, while most of the clay platelets are present as intercalated layers. |
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| Keywords: | montmorillonite PA66 nanocomposites organo-montmorillonite melting intercalation |
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