PMID- 34192678
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210716
IS  - 1361-6528 (Electronic)
IS  - 0957-4484 (Linking)
VI  - 32
IP  - 40
DP  - 2021 Jul 15
TI  - Development of novel TPI/HDPE/CNTs ternary hybrid shape memory nanocomposites.
LID - 10.1088/1361-6528/ac1018 [doi]
AB  - In order to make up for the defects of trans-1,4-polyisoprene (TPI) shape memory 
      polymer, TPI/high density polyethylene (HDPE) hybrid shape memory matrix was 
      prepared from the perspective of matrix composition. The carbon nanotubes (CNTs) 
      with excellent mechanical properties were introduced into the hybrid shape memory 
      matrix. Due to the difference of the inherent properties and geometry of 
      nano-fillers, the change of the content of nano-fillers directly affects the 
      bonding state within the composites. Therefore, it is very important to choose 
      the appropriate content. In order to give full play to the potential of 
      thermodynamics of nano-filler, the TPI/HDPE/CNTs ternary hybrid shape memory 
      nanocomposites were prepared by mechanical melt blending technology combined with 
      dynamic vulcanization and hot-pressing forming technology. The addition of CNTs 
      promotes the formation of the crystal structure of TPI and HDPE, and facilitates 
      the energy transfer between different interface, which greatly improves the 
      thermal conductivity and mechanical properties of the nanocomposites at the same 
      time. The effect of the changes of filler content on the thermodynamic properties 
      of the composite materials were revealed by series of tests. The results show 
      that the CNTs act as nucleating agents in the crystallization region of TPI and 
      HDPE. However, the excessive addition of CNTs can inhibit the formation of HDPE 
      crystal structure. Meanwhile, the crystallinity of nanocomposites is also an 
      important factor affecting its thermal conductivity. The specimens with the CNTs 
      content of 0.5 wt% have excellent tensile resistance and cyclic recovery ability, 
      and it can improve the shape recovery properties. Therefore, the nanocomposite 
      with the CNTs content of 0.5 wt% has the best thermodynamic and shape memory 
      properties.
CI  - (c) 2021 IOP Publishing Ltd.
FAU - Wang, Zhenqing
AU  - Wang Z
AUID- ORCID: 0000-0001-5471-0196
AD  - College of Aerospace and Civil Engineering, Harbin Engineering University, 
      Harbin, People's Republic of China.
FAU - Teng, Jianxin
AU  - Teng J
AUID- ORCID: 0000-0002-7340-129X
AD  - College of Aerospace and Civil Engineering, Harbin Engineering University, 
      Harbin, People's Republic of China.
FAU - Sun, Xiaoyu
AU  - Sun X
AD  - College of Aerospace and Civil Engineering, Harbin Engineering University, 
      Harbin, People's Republic of China.
FAU - Min, Benzhi
AU  - Min B
AD  - College of Aerospace and Civil Engineering, Harbin Engineering University, 
      Harbin, People's Republic of China.
LA  - eng
PT  - Journal Article
DEP - 20210715
PL  - England
TA  - Nanotechnology
JT  - Nanotechnology
JID - 101241272
SB  - IM
OTO - NOTNLM
OT  - 4-polyisoprene
OT  - CNTs
OT  - polyethylene
OT  - polymer nanocomposite
OT  - shape memory properties
OT  - thermodynamics properties
OT  - trans-1
EDAT- 2021/07/01 06:00
MHDA- 2021/07/01 06:01
CRDT- 2021/06/30 20:26
PHST- 2021/04/19 00:00 [received]
PHST- 2021/06/30 00:00 [accepted]
PHST- 2021/07/01 06:00 [pubmed]
PHST- 2021/07/01 06:01 [medline]
PHST- 2021/06/30 20:26 [entrez]
AID - 10.1088/1361-6528/ac1018 [doi]
PST - epublish
SO  - Nanotechnology. 2021 Jul 15;32(40). doi: 10.1088/1361-6528/ac1018.