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Preparation and characterization of shape memory composite foams based on solid foaming method
Author(s) -
Yao Y.,
Zhou T.,
Xu Y.,
Liu Y.,
Leng J.
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46767
Subject(s) - materials science , composite number , composite material , shape memory alloy , porosity , biocompatible material , foaming agent , microporous material , filler (materials) , biomedical engineering , medicine
As we know, shape‐memory foams with porous feature are better suited for a certain application compared with their solid counterparts, especially in tissue engineering, drug delivery, filtration, etc. In this study, a type of biocompatible composite foam with shape‐memory property has been developed on the basis of biocompatible materials cross‐linked poly(ε‐caprolactone) (PCL) and silk fibrin (SF). Solid‐state foaming method was used to fabricate the composite shape‐memory foam. Hierarchical cellular foam with micropore on the cellular wall was observed. To optimize pore morphology, the relationship between cross‐linking agent content/reinforcement filler content and PCL matrix was investigated. Excellent shape‐recovery property (>97.6%) and shape‐fixing property (>98%) have been achieved for PCL foam. For composite foams, SF addition is not too much effective on their shape‐memory property by varying SF content. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46767.