High Performance Long Chain Polyamide/Calcium Silicate Whisker Nanocomposites and the Effective Reinforcement Mechanism

Li-li Wang; Xia Dong; Xing-rui Wang; Gan-yu Zhu; Hui-quan Li; Du-jin Wang

doi:10.1007/s10118-016-1812-6

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High Performance Long Chain Polyamide/Calcium Silicate Whisker Nanocomposites and the Effective Reinforcement Mechanism

PAPERS | Updated：2021-05-12

- High Performance Long Chain Polyamide/Calcium Silicate Whisker Nanocomposites and the Effective Reinforcement Mechanism
- Chinese Journal of Polymer Science Vol. 34, Issue 8, Pages: 991-1000(2016)
- Affiliations：
  
  a. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  b. Key Laboratory of Green Process and Engineering and National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- Author bio：
  
  Xia Dong (董侠), E-mail: xiadong@iccas.ac.cn
- Funds：
- DOI：10.1007/s10118-016-1812-6
  CLC：
- Received：25 January 2016，
  
  Revised：2016-2-16，
  
  Accepted：16 February 2016，
  
  Published：2016-08
- Accepted：
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Li-li Wang, Xia Dong, Xing-rui Wang, et al. High Performance Long Chain Polyamide/Calcium Silicate Whisker Nanocomposites and the Effective Reinforcement Mechanism[J]. Chinese Journal of Polymer Science, 2016, 34(8): 991-1000.
DOI：

Li-li Wang, Xia Dong, Xing-rui Wang, et al. High Performance Long Chain Polyamide/Calcium Silicate Whisker Nanocomposites and the Effective Reinforcement Mechanism[J]. Chinese Journal of Polymer Science, 2016, 34(8): 991-1000. DOI： 10.1007/s10118-016-1812-6.

摘要

Abstract

PA1012/calcium silicate whisker nanocomposites with contents of whisker ranging from 10 wt% to 40 wt%

are prepared by twin screw extruder without any additions of coupling agent. The effect of whisker on the matrix is analyzed by the studies of morphology

the mechanical properties

water absorption and thermal stabilities. SEM micrographs obviously demonstrate

even under the high filler content of 40 wt% and without surface treatment

calcium silicate whisker can be homogeneously dispersed in polyamide

directly leading to the enhanced mechanical properties. The mechanism of higher efficiency of reinforcement is needle-like shape whisker

having access to be intercalated

and mutual affinity caused by hydrogen bonding interaction between carbonyl group in polyamide chain and hydroxyl group in whisker surface. Both aspects attach matrix with excellent stress-transfer properties. In addition

with the assistance of whisker

the nanocomposite favors an improved water absorption as well as thermal stability

which is intimately associated with physical performance.

关键词

Keywords

references

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