A relative study of the effect of static and dynamic vulcanization upon shape memory nature of thermally actuated peroxide crosslinked polyolefinic blends,Polymer Engineering and Science

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A relative study of the effect of static and dynamic vulcanization upon shape memory nature of thermally actuated peroxide crosslinked polyolefinic blends
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-12-01 , DOI: 10.1002/pen.25600
Tuhin Chatterjee _{1,

2} , Asit Baran Bhattacharya ₁ , Sanjay Pal ₁ , Kinsuk Naskar ₁

Affiliation

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.

中文翻译：

静态和动态硫化对热活化过氧化物交联聚烯烃共混物形状记忆特性影响的相对研究

已经开发了EOC和EPDM的热驱动过氧化物交联的形状记忆聚烯烃共混物。静态和动态硫化过程对形状记忆特性的影响已被详细研究。在60°C下进行的形状记忆性能研究表明，静态硫化的混合物和动态硫化的混合物在形状固定性和形状恢复行为方面分别优越。较低百分比的晶体结构破裂会给静态硫化的共混物带来较高的形状固定率。以平行的方式，静态硫化的混合物也显示出更好的应力-应变性能。另一方面，较高程度的交联网络结构导致动态硫化共混物的形状恢复百分比较高。与形状恢复特性相似，

更新日期：2021-02-08

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