| Titre : |
Thermo-responsive shape memory behavior of methyl vinyl silicone rubber-olefin block copolymer blends via co-crosslinking |
| Type de document : |
texte imprimé |
| Auteurs : |
Q. Ren, Auteur ; X. J. Wang, Auteur ; Y. Q. Zhao, Auteur ; L. Q. Xu, Auteur ; H. W. Yu, Auteur ; A. J. Ma, Auteur ; W. G. Zheng, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 26-34 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alliages polymères -- Propriétés thermiques
Copolymères séquencés
Effet mémoire de forme
Elastomères silicones vulcanisables à chaud
Matériaux thermosensibles
Morphologie (matériaux)
Polymérisation
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Shape memory polymers (SMPs) are developed by blending and cross-linking polymers which include crystalline domains and cross-linked networks. In this paper, we describe the morphology, thermal and shape memory behavior of methyl vinyl silicone rubber (MVMQ)/olefin block copolymer (OBC) blends prepared by a melt-blending and chemical cross-linking method. MVMQ without crystalline domains could not hold its temporary shape. After introducing the OBC, the obtained blends exhibited excellent dual shape memory properties. The cross-linking networks of MVMQ acted as reversible domains, while crystalline regions of OBC worked as fixed domains. When the blending ratio of MVMQ/OBC was 50/ 50, the blend had both a high shape fixity ratio and shape recovery ratio. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of the MVMQ/OBC blends - Cure characteristics of the unvulcanized MVMQ/OBC blends - Characterization of the vulcanized MVMQ/OBC blends
- RESULTS AND DISCUSSION : Cure characteristics - 3.2 Thermal properties - 3.3 Morphology analysis - 3.4 Shape memory performance
- Table 1 : Formulation of the MVMQ/OBC blends
- Table 2 : Cure characteristics of the MVMQ/OBC blends with different blending ratios
- Table 3 : Melting temperature and crystallinity of the MVMQ/OBC blends with different blending ratios
- Table 4 : Shape memory results of the MVMQ/OBC blends with different blending ratios
- Table 5 : Shape memory cycle results of the MVMQ/OBC blend with blending ratio of 50/50 |
| DOI : |
https://doi.org/10.1515/ipp-2020-3927 |
| En ligne : |
https://drive.google.com/file/d/1hA7eDO23WCB9c-oLjNWytJsFFDLgVyvf/view?usp=shari [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36343 |
in INTERNATIONAL POLYMER PROCESSING > Vol. 36, N° 1 (2021) . - p. 26-34
Aller sur edunet
Accueil
Thermo-responsive shape memory behavior of methyl vinyl silicone rubber-olefin block copolymer blends via co-crosslinking in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 1 (2021)
