Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber
The influence of the molecular structure of monophenyl and diphenyl silicone rubber on the high temperature resistance was studied by combining experiment and molecular simulation. The results showed that hardness, mechanical properties and high temperature resistance of the diphenyl silicone rubber...
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| Format: | Article |
| Language: | zho |
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Editorial Office of China Synthetic Rubber Industry
2022-06-01
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| Series: | Hecheng xiangjiao gongye |
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| Online Access: | http://hcxjgy.paperopen.com/oa/DArticle.aspx?type=view&id=202206002 |
| _version_ | 1797976525386022912 |
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| author | YANG Rui-ning, DOU Peng, WANG Rui-xin, XU Jing |
| author_facet | YANG Rui-ning, DOU Peng, WANG Rui-xin, XU Jing |
| author_sort | YANG Rui-ning, DOU Peng, WANG Rui-xin, XU Jing |
| collection | DOAJ |
| description | The influence of the molecular structure of monophenyl and diphenyl silicone rubber on the high temperature resistance was studied by combining experiment and molecular simulation. The results showed that hardness, mechanical properties and high temperature resistance of the diphenyl silicone rubber system were not significantly different from those of the monophenyl silicone rubber system at the early aging stage of high temperature of 400 ℃, but after 10 aging cycles of high temperature of 400℃, mechanical properties and mass retention rate of the diphenyl silicone rubber system were higher, and high temperature resistance was better. In addition, the results of molecular simulation confirmed that Si—O of diphenyl silicone rubber has higher dissociation energy at 675 K, and the diphenyl silicone rubber system has stronger steric effect, smaller free volume fraction, lower probability of contact with oxygen, and higher thermal stability in long-term high temperature environment.
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| first_indexed | 2024-04-11T04:52:17Z |
| format | Article |
| id | doaj.art-82c6d659e2584816958560e8c2d5692b |
| institution | Directory Open Access Journal |
| issn | 1000-1255 |
| language | zho |
| last_indexed | 2024-04-11T04:52:17Z |
| publishDate | 2022-06-01 |
| publisher | Editorial Office of China Synthetic Rubber Industry |
| record_format | Article |
| series | Hecheng xiangjiao gongye |
| spelling | doaj.art-82c6d659e2584816958560e8c2d5692b2022-12-27T03:06:45ZzhoEditorial Office of China Synthetic Rubber IndustryHecheng xiangjiao gongye1000-12552022-06-0145644945510.19908/j.cnki.ISSN1000-1255.2022.06.0449Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubberYANG Rui-ning, DOU Peng, WANG Rui-xin, XU Jing0China Institute of Aeronautical Manufacturing Technology, Beijing 100024, ChinaThe influence of the molecular structure of monophenyl and diphenyl silicone rubber on the high temperature resistance was studied by combining experiment and molecular simulation. The results showed that hardness, mechanical properties and high temperature resistance of the diphenyl silicone rubber system were not significantly different from those of the monophenyl silicone rubber system at the early aging stage of high temperature of 400 ℃, but after 10 aging cycles of high temperature of 400℃, mechanical properties and mass retention rate of the diphenyl silicone rubber system were higher, and high temperature resistance was better. In addition, the results of molecular simulation confirmed that Si—O of diphenyl silicone rubber has higher dissociation energy at 675 K, and the diphenyl silicone rubber system has stronger steric effect, smaller free volume fraction, lower probability of contact with oxygen, and higher thermal stability in long-term high temperature environment. http://hcxjgy.paperopen.com/oa/DArticle.aspx?type=view&id=202206002monophenyl silicone rubberdiphenyl silicone rubbermolecular simulationmolecular structurehigh temperature resistancemechanical property |
| spellingShingle | YANG Rui-ning, DOU Peng, WANG Rui-xin, XU Jing Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber Hecheng xiangjiao gongye monophenyl silicone rubber diphenyl silicone rubber molecular simulation molecular structure high temperature resistance mechanical property |
| title | Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber |
| title_full | Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber |
| title_fullStr | Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber |
| title_full_unstemmed | Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber |
| title_short | Experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber |
| title_sort | experiment and simulation of the relationship between molecular structure and high temperature resistance of phenyl silicone rubber |
| topic | monophenyl silicone rubber diphenyl silicone rubber molecular simulation molecular structure high temperature resistance mechanical property |
| url | http://hcxjgy.paperopen.com/oa/DArticle.aspx?type=view&id=202206002 |
| work_keys_str_mv | AT yangruiningdoupengwangruixinxujing experimentandsimulationoftherelationshipbetweenmolecularstructureandhightemperatureresistanceofphenylsiliconerubber |