Crystallization and Rheological Behaviors of Amino-functionalized Multiwalled Carbon Nanotubes Filled Polyamide 6 Composites
Crystallization and Rheological Behaviors of Amino-functionalized Multiwalled Carbon Nanotubes Filled Polyamide 6 Composites
复制标题
氨基功能化多壁碳纳米管填充聚酰胺6复合材料的结晶和流变行为
DOI：
10.1080/00222340903343632
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发表时间：
2010-04
影响因子：
1.4
通讯作者：
Fan, Xinyu
中科院分区：
文献类型：
--
作者：
Fang, Keyi;Ke, Chenhao;Fang, Zhengping;Guo, Zhenghong;Li, Juan;Fan, Xinyu
以原始碳纳米管（p-MWNTs）和氨基功能化碳纳米管（f-MWNTs）为原料，通过熔融共混制备了多壁碳纳米管/聚酰胺6 （MWNTs）复合材料。研究了MWNTs/PA6复合材料的结晶和流变行为。结果表明：所有mwnt均可作为非均相成核位点；然而，它们阻碍了生长过程。结果表明，p-MWNT含量较低时，复合材料的表观粘度低于PA6， p-MWNT含量较高时，复合材料的表观粘度高于PA6。这是由于mwnt的加强作用和大量mwnt导致PA6链之间的物理交联断裂所致。f-MWNT /PA6复合材料的存储模量随着f-MWNT含量的增加先增大后减小，主要是由于f-MWNT的结晶和强化作用。然而，所有复合材料的玻璃化转变温度（Tg）（以tan δ峰为特征）都低于纯PA6。氨基功能化改善了MWNTs与PA6的相互作用，减弱了MWNTs对结晶和流变行为的影响。
Multiwalled carbon nanotubes/polyamide 6 (MWNTs/PA6) composites were fabricated by melt blending with both pristine MWNTs (p-MWNTs) and amino-functionalized MWNTs (f-MWNTs). The crystallization and rheological behavior of MWNTs/PA6 composites were investigated. The results showed that all the MWNTs can act as heterogeneous nucleation sites; however, they retard the growth process. It was found that the apparent viscosity of the composites was lower than PA6 at lower p-MWNT content, but was higher than PA6 at higher p-MWNT content. This was attributed to the stiffening effect of MWNTs and the broken physical crosslinks between PA6 chains caused by a large amount of MWNTs. The storage modulus of the f-MWNTs/PA6 composites was first increased and then decreased with the increase of f-MWNT content because of the crystallization and the stiffening effect of f-MWNTs. However the glass transition temperatures (Tg ), characterized by the tan δ peak, for all composites were lower than that of neat PA6. Amino-functionalization of MWNTs improved the interaction between MWNTs and PA6, and weakened the effect of MWNTs on crystallization and rheological behavior.
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影响因子：
5.5
作者：
Mitchell, CA;Bahr, JL;Krishnamoorti, R
通讯作者：
Krishnamoorti, R
DOI：
10.1002/polb.20808
发表时间：
2006-05
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
Juan Li;Zhengping Fang;L. Tong;A. Gu;Fu Liu
通讯作者：
Juan Li;Zhengping Fang;L. Tong;A. Gu;Fu Liu
影响因子：
3
作者：
Li, Juan;Fang, Zhengping;Uu, Fu
通讯作者：
Uu, Fu
影响因子：
10.9
作者：
Mei Yang;Yong Gao;Hua-ming Li;A. Adronov
通讯作者：
Mei Yang;Yong Gao;Hua-ming Li;A. Adronov
影响因子：
3.4
作者：
Thostenson, ET;Chou, TW
通讯作者：
Chou, TW