Citation: Tianxi Liu, Hongdan Peng, Yue-E Miao, Weng Weei Tjiu, Lu Shen, Chun Wei. Synergistic Effect of Carbon Nanotubes and Layered Double Hydroxides on the Mechanical Reinforcement of Nylon-6 Nanocomposites[J]. Chinese Journal of Polymer Science, ;2014, 32(10): 1276-1285. doi: 10.1007/s10118-014-1521-y shu

Synergistic Effect of Carbon Nanotubes and Layered Double Hydroxides on the Mechanical Reinforcement of Nylon-6 Nanocomposites

Tianxi Liu ^1,2,3 ,
Hongdan Peng ⁴ ,
Yue-E Miao ⁴ ,
Weng Weei Tjiu ⁵ ,
Lu Shen ⁵ ,
Chun Wei ⁶

1.
1. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
2.
2. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
3.
4.
State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
5.
Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602
6.
Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China

Received Date: 22 April 2014
Revised Date: 11 June 2014

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 51125011), Guangxi Small Highland Innovation Team of Talents in Colleges and Universities, Guangxi Funds for Specially-appointed Experts, and Guangxi Natural Science Foundation of China (No. 2014GXNSFAA118321).

Synergistic effect in network formation of nylon-6 (PA6) nanocomposites containing one dimensional (1D) multi-walled carbon nanotubes (CNTs) and two dimensional (2D) layered double hydroxide (LDH) platelets on improving the mechanical properties has been studied. Mechanical tests show that, with incorporation of 1 wt% LDHs and 0.5 wt% CNTs, the tensile modulus, the yield strength as well as the hardness of the ternary composite are greatly improved by about 230%, 128% and 110% respectively, as compared with neat PA6. This is mainly attributed to the unique, strong interactions between the CNTs and the LDHs as well as the jammed network-like structure thus formed between the nanofillers, as confirmed by the morphological observations. As compared with the binary nanocomposites, a much enhanced solid-like behavior in the terminal region of the rheological curves can clearly be observed for the ternary system, which also indicates the formation of a percolating filler network.
- Nylon 6,
- Nanocomposites,
- Carbon nanotubes,
- Layered double hydroxide,
- Mechanical properties
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