文章摘要
Shape Memory Performance of Organic Small Molecule Hybrid PNB
Received:March 29, 2020  Revised:April 08, 2020
DOI：10.12136/j.issn.1000-890X.2021.01.0003
Key Words: polynorbornene；plasticizer；organic small molecule；hybrid；shape memory performance
Author NameAffiliationE-mail
PANG Jianguang Xi’an Aerospace Propulsion Institute 1710370807@qq.com 
YANG Xiaodong Xi’an Aerospace Propulsion Institute  
XUE Haien Xi’an Aerospace Propulsion Institute  
LI Hongchun* Xi’an Aerospace Propulsion Institute 1710370807@qq. com 
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Abstract:
      Polynorbornene（PNB） was used to study the effects of plasticizers[plastic T and treaded distillate aromatic extract（TDAE）] and organic small molecules（microcrystalline wax，starch and alkali lignin） on the shape memory performance of PNB.The results showed that the glass transition temperature of PNB with TDAE was about room temperature（20 ℃），the plastic T had little effect on the glass transition temperature of PNB，which was conducive to the deformation fixation of PNB at room temperature.When stretching at the initial temperature of glass transition temperature，the PNB filled with several kinds of fillers showed yield phenomenon and exhibited the characteristics of hard and tough stress-strain.All of the filled PNB had excellent traditional shape memory performance，its shape fixation rate were more than 98% and shape recovery rate were more than 70%，the reversible plastic shape memory performance of PNB was lower than traditional shape memory performance，and the reversible plastic shape fixation rate was 49%～77%.The microcrystalline wax hybrid PNB had excellent shape memory performance.
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