Synergistic Effects of Gamma Irradiation,Tensile Stress and Moisture on the Radiolysis of Silicone Foam
作者机构：Institute of Nuclear Physics and ChemistryChina Academy of Engineering PhysicsMianyang 621000China
出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)
年 卷 期：2023年第41卷第12期
页 面：1969-1978,I0011页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：financially supported by Science Challenge Project(No.TZ2018004) National Natural Science Foundation of China(No.52103131)
主 题：Silicone foam Synergistic effect Gamma irradiation Tensile stress Moisture
摘 要：The present work involves the investigation of the synergistic effects of gamma irradiation,tensile stress and absorbed moisture on the radiolysis behaviors of silicone foams by experiments and theoretical *** both the pristine and dehydrated samples,the permanent tensile set increases with the initial tensile *** analysis uncovers that the dehydrated samples exhibit greater permanent tensile sets,lower further elongation and higher Young’s modulus than the counterparts of the pristine samples with the same initial tensile strain and gamma dose,verifying the vital synergistic effects on crosslinking network and aggregation structures caused by moisture and gamma *** synergistic effects unveiled by reactive molecular dynamics at the atomic scale are due to the moisture-induced neutralization and stabilization of the macromolecular *** steric hindrance of moisture located at the interface of silica and polymer chains also conduces to the observed synergistic effects due to the inhibited crosslinking reactions.
维普期刊数据库
同方期刊数据库