Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites

Polymers

Bin Xu¹  Yong Qing Fu¹  Wei Min Huang¹  Yu Tao Pei¹  Zhen Guo Chen¹  Jeff T.M. De Hosson¹  Arno Kraft¹ 

[1] ¹Department of Mechanical Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK

关键词: shape memory;    nanocomposites;    polyurethane;    nano-clay;    Vickers indentation;    microhardness;   

DOI  :  10.3390/polym2020031

来源: mdpi

【 摘 要 】

Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is attributed to the enhanced nanoclay–polymer interactions. Thermal mechanical experiments demonstrated good mechanical and shape memory effects of the nanocomposites. Full shape memory recovery was displayed by both the pure PU and PU-clay nanocomposites.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.