TY - JOUR
T1 - A relative study of the effect of static and dynamic vulcanization upon shape memory nature of thermally actuated peroxide crosslinked polyolefinic blends
AU - Chatterjee, Tuhin
AU - Bhattacharya, Asit Baran
AU - Pal, Sanjay
AU - Naskar, Kinsuk
N1 - Funding Information:
The authors would like to acknowledge IPF Dresden, Germany, for their kind help. Thanks to Mrs. Sabine Krause (IPF Dresden) for the thermal analysis study. Author is also thankful to Mr. Syed Mushtaq, Mr. Partheban M., Mr. Syed Mohammad Reffai, Mr. Amal Sarbagya, Mr. Arun Chanda for their kind help.
Publisher Copyright:
© 2020 Society of Plastics Engineers
PY - 2021/2
Y1 - 2021/2
N2 - Thermally actuated peroxide crosslinked shape memory polyolefinic blends of EOC and EPDM has been developed. Effect of static and dynamic vulcanization process on the shape memory character has been pursued in detail. Shape memory properties study at 60°C reveals that statically vulcanized blend and dynamically vulcanized blend are superior in terms of shape fixity character and shape recovery behavior, respectively. Breakage of lower percentage of crystalline structure gives higher percentage of shape fixity for the statically vulcanized blend. In a parallel way, statically vulcanized blend shows better stress–strain properties also. On the other hand, higher degree of crosslinked network structure results higher shape recovery percentage for the dynamically vulcanized blend. Similar to shape recovery characteristics, dynamically vulcanized blend shows better thermal stability and higher percentage of gel content.
AB - Thermally actuated peroxide crosslinked shape memory polyolefinic blends of EOC and EPDM has been developed. Effect of static and dynamic vulcanization process on the shape memory character has been pursued in detail. Shape memory properties study at 60°C reveals that statically vulcanized blend and dynamically vulcanized blend are superior in terms of shape fixity character and shape recovery behavior, respectively. Breakage of lower percentage of crystalline structure gives higher percentage of shape fixity for the statically vulcanized blend. In a parallel way, statically vulcanized blend shows better stress–strain properties also. On the other hand, higher degree of crosslinked network structure results higher shape recovery percentage for the dynamically vulcanized blend. Similar to shape recovery characteristics, dynamically vulcanized blend shows better thermal stability and higher percentage of gel content.
KW - peroxide crosslinking
KW - shape fixity
KW - shape memory polymer
KW - shape recovery ratio
KW - static and dynamic vulcanization
UR - https://www.scopus.com/pages/publications/85096941370
U2 - 10.1002/pen.25600
DO - 10.1002/pen.25600
M3 - Article
AN - SCOPUS:85096941370
SN - 0032-3888
VL - 61
SP - 562
EP - 575
JO - Polymer Engineering and Science
JF - Polymer Engineering and Science
IS - 2
ER -