Reinforcing Polyamide 1212 with Oxidized Carbon Nanotubes

DOI

10.2991/ap3er-15.2015.29How to use a DOI?

Keywords

Polyamide 1212; carbon nanotubes; mechanical properties; composites; reinforcement.

Abstract

The polymer composites based on carbon nanotubes are of particular interests because of their excellent performance. In this work, carbon nanotubes (CNTs) were modified by concentrated acid solution which resulted in CNTs grafted with carboxylic acid (–COOH) and hydroxyl (–OH) groups (i.e. a-CNTs). The polyamide 1212 (PA1212)/a-CNTs composites with a series of CNT contents were prepared by melt-compounding process. The mechanical properties of the PA1212/a-CNTs composites were reinforced efficiently with the addition of a-CNTs. The tensile strength, Young’s modulus and yield strength of the composites were improved compared with these of pure PA1212. The dynamic modulus and Tg of the composites were improved with the addition of a-CNTs. And it indicated that there existed obvious interfacial adhesion between CNTs and PA1212 matrix. The melt point, crystallization temperatures and crystallinities of the composites were improved due to the heterogeneous nucleation effect of a-CNTs in PA1212 matrix. The a-CNTs induced the formation of -crystal form in PA1212 composites from WAXD results.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ziqing Cai
AU  - Xiaoyu Meng
AU  - Lishan Cui
AU  - Qiong Zhou
PY  - 2015/06
DA  - 2015/06
TI  - Reinforcing Polyamide 1212 with Oxidized Carbon Nanotubes
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 119
EP  - 122
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.29
DO  - 10.2991/ap3er-15.2015.29
ID  - Cai2015/06
ER  -