TPU/PLA nanocomposites with improved mechanical and shape memory properties fabricated via phase morphology control and incorporation of multi‐walled carbon nanotubes nanofillers

2020 ◽  
Vol 60 (6) ◽  
pp. 1118-1128 ◽  
Author(s):  
Yi Guo ◽  
Lei Yan ◽  
Zhu Zeng ◽  
Lin Chen ◽  
Mingxue Ma ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Shape Memory ◽  
Morphology Control ◽  
Phase Morphology ◽  
Shape Memory Properties ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

CNT and Graphene Filled Shape Memory Foams by Solid State Foaming

2015 ◽  
Vol 651-653 ◽  
pp. 719-725
Author(s):  
Loredana Santo ◽  
Giovanni Matteo Tedde ◽  
Fabrizio Quadrini ◽  
Ibrahim Mutlay
Keyword(s):  
Carbon Nanotubes ◽  
Transition Temperature ◽  
Solid State ◽  
Shape Memory ◽  
Composite Foams ◽  
Epoxy Foam ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Positive Effect ◽  
Foaming Technology

Epoxy-based shape memory (SM) foams have been produced by solid state foaming. According to this foaming technology, precursors are made by cold compaction of thermosetting powders. Subsequently, precursors foam by heating in an oven. In this study, the SM epoxy powder was mixed with multi-walled carbon nanotubes (MWCNTs) and graphene so as to produce SM composite foams. Two different filling contents were used (0.5 and 1 wt%). In order to study the effect of nano-fillers on SM properties of the epoxy foams, foam compressibility was measured at a temperature higher than the transition temperature of the SM epoxy foam (i.e. the glass transition temperature). Moreover, recovery load was measured after a 50% of memorized strain. Results show the positive effect of the fillers in functional and structural terms.

Facile fabrication of ternary nanocomposites with selective dispersion of multi-walled carbon nanotubes to access multi-stimuli-responsive shape-memory effects

2017 ◽  
Vol 1 (2) ◽  
pp. 343-353 ◽  
Author(s):  
Man-Jie He ◽  
Wen-Xia Xiao ◽  
Hui Xie ◽  
Cheng-Jie Fan ◽  
Lan Du ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Shape Memory ◽  
Memory Effects ◽  
Stimuli Responsive ◽  
Multiblock Copolymer ◽  
Shape Memory Effects ◽  
Multi Walled Carbon Nanotubes ◽  
Facile Fabrication ◽  
Walled Carbon Nanotubes

A multi-stimuli-responsive shape-memory ternary nanocomposites with selective dispersion of MWCNTs was developed by introducing MWCNTs into a PBS-PCL multiblock copolymer matrix (PBSPCL) by a facile approach.

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