Radiation effects on room temperature epoxy adhesive molecular structure: Mechanical tests and correlation with calorimetric and outgassing analyses
Radiation effects on room temperature epoxy adhesive molecular structure: Mechanical tests and correlation with calorimetric and outgassing analyses
复制标题
辐射对室温环氧粘合剂分子结构的影响：机械测试以及与量热和排气分析的相关性
DOI：
10.1080/00222349908248126
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
J. Kenny
中科院分区：
文献类型：
--
作者：
F. Guarino;C. Hauviller;J. Kenny
在空间卫星、高能物理实验、核电站等应用中，环氧结构胶粘剂通常在电离辐射环境中使用。为了检查γ-辐照对室温环氧粘合剂的影响，对三种不同的树脂进行了高达3 MGy剂量的机械测量。哑铃和单搭接剪切试验进行。为了将测得的辐射对这些机械性能的影响与树脂的分子改性相关联，对测试的粘合剂之一进行了除气和量热测试。作为这些测试的结果，机械改性与网状化、网络断裂和由于辐射而产生的低重量分子的组合相关。剪切和拉伸强度行为的差异与粘合剂-被粘物界面的存在有关。
In applications like space satellites, high-energy physics experiments, and nuclear power stations, epoxy structural adhesives are normally used in an ionizing radiation environment. To check the effects of γ-irradiation on room temperature epoxy adhesives, mechanical measurements were undertaken for three different resins up to the dose of 3 MGy. Both dumbbell and single-lap shear tests were performed. To correlate the measured radiation effects on these mechanical properties with the molecular modifications of the resins, outgassing and calorimetric tests were performed on one of the tested adhesives. As a result of these tests, the mechanical modifications were associated with the combination of reticulation, network scission, and production of low-weight molecules due to radiation. Differences in shear and tensile strength behaviors were associated with the presence of the adhesive-adherend interface.