首页> 美国政府科技报告 >Chemical Degradation of Siloxane Stress Cushions (M97 and S5370) by Thermal, Mechanical and Spectroscopic Investigations

【24h】

Chemical Degradation of Siloxane Stress Cushions (M97 and S5370) by Thermal, Mechanical and Spectroscopic Investigations

机译：通过热，机械和光谱研究化学降解硅氧烷应力垫（m97和s5370）

获取原文

页面导航

摘要
著录项
相似文献
相关主题

摘要

We are currently investigating the long term aging of weapon organics in an effort to develop predictive capabilities for hctional service life. As part of this effort, we have been studying multimechanism aging of M97 and S5370 stress cushions. Ionizing radiation, thermal degradation, and desiccation all affect the crosslink density and motional dynamics and thus the engineering performance of these materials. Our approach has been to develop molecular level understanding of the effects of such aging mechanisms on polymer properties by a combined approach utilizing solvent swelling, thermal, DMA, molecular modeling, and solid state NMR. This presentation will offer a survey of our current work, concentrating on the application of solid state NMR for correlating structure and polymer dynamics. An overview of the relationships between crosslink density, NMR relaxation times, polymer chain dynamics, and storage modulus measurements will be presented and the advantages of NMR will be discussed.

著录项

作者
Maxwell, R. S.; Gee, R.; Balazs, B.;
展开▼
作者单位

展开▼
年度 2002
页码 p.1-12
总页数 12
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Degradation; Weapons; Siloxanes; Service life; Crosslinking(Chemistry); Stresses; Molecular structures; Polymers; Organic compounds; Thermal degradation; Mechanical properties;

机译：降解;武器;硅氧烷;使用寿命;交联（化学）;应力;分子结构;聚合物;有机化合物;热降解;机械性能;

相似文献

外文文献
中文文献
专利

1. Moessbauer, NMR and ATR-FTIR spectroscopic investigation of degradation in RTV siloxane foams [J] . Andrea Labouriau, Jonathan D. Cox, Jon R. Schoonover, Polymer Degradation and Stability . 2007,第3期

机译：Moessbauer，NMR和ATR-FTIR光谱研究RTV硅氧烷泡沫中的降解
2. Monitoring Oxidative Degradation of Thermally Stressed Palm Olein Shortening by Spectroscopic and Chromatographic Techniques [J] . Adnan Mujahid, Saba Nazir, Muhammad Hamid Raza, Open Journal of Applied Sciences . 2018,第12期

机译：光谱和色谱技术监测热应力棕榈油缩短的氧化降解
3. Investigation and analysis of thermo-mechanical degradation of fingers in a photovoltaic module under thermal cyclic stress conditions [J] . Kumar Sagarika, Gupta Rajesh Solar Energy . 2018,第NOVa期

机译：热循环应力条件下光伏组件中指状物的热机械降解研究与分析
4. Degradation mechanisms of siloxane-based thermal interface materials under reliability stress conditions [C] . Dal, S.L.B. Reliability Physics Symposium Proceedings, 2004. 42nd Annual . 2004

机译：可靠性应力条件下硅氧烷基热界面材料的降解机理
5. The relation of material properties, residual stresses, and thermal and mechanical loadings to coating degradation in thermal barrier coatings and tungsten carbide thermal spray coatings. [D] . McGrann, Roy Thomas Rumsey. 1997

机译：在隔热涂层和碳化钨热喷涂涂层中，材料性能，残余应力以及热载荷和机械载荷与涂层降解之间的关系。
6. Investigation on Hydration and Mechanical Properties of Mortar Containing Limestone Powder and Fly Ash Based on the Coupled Chemical–Thermal–Mechanical Method [O] . Wei Zhou, Wenxiang Tian, Tianqi Qi, 2020

机译：基于耦合化学热机械方法的砂浆水合和力学性能研究
7. The thermal degradation behaviour of a series of siloxane copolymers - a study by thermal volatilisation analysis [O] . Allan D., Radzinski S. C., Tapsak M. A., 2016

机译：一系列硅氧烷共聚物的热降解行为-通过热挥发分析进行的研究

Chemical Degradation of Siloxane Stress Cushions (M97 and S5370) by Thermal, Mechanical and Spectroscopic Investigations

摘要

著录项

相似文献

相关主题

期刊订阅