Radiation effects of epoxy resin and h-BN/epoxy resin composites
Epoxy resin (EP) and its composites have extensive applications in the nuclear industry. The study of their radiation effects can provide critical guidance in developing radiation-resistant epoxy resin materials. In this study, an epoxy resin was synthesized from tetrahydrophthalic acid diglycidyl e...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Science Press
2023-10-01
|
| Series: | Fushe yanjiu yu fushe gongyi xuebao |
| Subjects: | |
| Online Access: | http://www.fs.sinap.ac.cn/thesisDetails#10.11889/j.1000-3436.2023-0040&lang=zh |
| _version_ | 1797524305101193216 |
|---|---|
| author | PAN Zuxiong WANG Jiajian GE Zhiqing WANG Mozhen GE Xuewu |
| author_facet | PAN Zuxiong WANG Jiajian GE Zhiqing WANG Mozhen GE Xuewu |
| author_sort | PAN Zuxiong |
| collection | DOAJ |
| description | Epoxy resin (EP) and its composites have extensive applications in the nuclear industry. The study of their radiation effects can provide critical guidance in developing radiation-resistant epoxy resin materials. In this study, an epoxy resin was synthesized from tetrahydrophthalic acid diglycidyl ester and methylhexahydrophthalic anhydride. Boron nitride (BN) particles with two average particle sizes (7.5 μm and 757 nm) were used as filler to prepare two BN/epoxy resin composites. The possible bond cleavage of the crosslinking structural units of epoxy resin was investigated through density functional theory. The mechanical and thermal stability properties of the two BN/epoxy resin composites before and after gamma-ray irradiation under different absorbed doses were studied. The results showed that of all the chemical bonds consisting of a crosslinking structural unit, the C-C of the isopropyl unit had the minimum bond energy, making it easily breakable and leading to a breakdown of the polymer crosslinking network. When the absorbed dose exceeded 250 kGy, the tensile strength and thermal decomposition temperature of the epoxy resin and its composites noticeably decreased. The mechanical strength of the composite epoxy resins after irradiation depended on the combined effects of the BN particle size and the amount of added BN. When the absorbed dose reached 1 100 kGy, n-BN/EP with a mass fraction of 3% exhibited the highest tensile strength and thermal decomposition temperature. Therefore, adding a small amount of submicron-sized h-BN can improve the radiation resistance of epoxy resin. This work has theoretical and practical significance for the development of radiation-resistant epoxy resin composites. |
| first_indexed | 2024-03-10T08:55:27Z |
| format | Article |
| id | doaj.art-4c55baadb06d459984c3e44a9673eb36 |
| institution | Directory Open Access Journal |
| issn | 1000-3436 |
| language | zho |
| last_indexed | 2024-03-10T08:55:27Z |
| publishDate | 2023-10-01 |
| publisher | Science Press |
| record_format | Article |
| series | Fushe yanjiu yu fushe gongyi xuebao |
| spelling | doaj.art-4c55baadb06d459984c3e44a9673eb362023-11-22T07:09:08ZzhoScience PressFushe yanjiu yu fushe gongyi xuebao1000-34362023-10-0141505020205020210.11889/j.1000-3436.2023-00401000-3436（2023）05-0011-10Radiation effects of epoxy resin and h-BN/epoxy resin compositesPAN ZuxiongWANG JiajianGE ZhiqingWANG MozhenGE XuewuEpoxy resin (EP) and its composites have extensive applications in the nuclear industry. The study of their radiation effects can provide critical guidance in developing radiation-resistant epoxy resin materials. In this study, an epoxy resin was synthesized from tetrahydrophthalic acid diglycidyl ester and methylhexahydrophthalic anhydride. Boron nitride (BN) particles with two average particle sizes (7.5 μm and 757 nm) were used as filler to prepare two BN/epoxy resin composites. The possible bond cleavage of the crosslinking structural units of epoxy resin was investigated through density functional theory. The mechanical and thermal stability properties of the two BN/epoxy resin composites before and after gamma-ray irradiation under different absorbed doses were studied. The results showed that of all the chemical bonds consisting of a crosslinking structural unit, the C-C of the isopropyl unit had the minimum bond energy, making it easily breakable and leading to a breakdown of the polymer crosslinking network. When the absorbed dose exceeded 250 kGy, the tensile strength and thermal decomposition temperature of the epoxy resin and its composites noticeably decreased. The mechanical strength of the composite epoxy resins after irradiation depended on the combined effects of the BN particle size and the amount of added BN. When the absorbed dose reached 1 100 kGy, n-BN/EP with a mass fraction of 3% exhibited the highest tensile strength and thermal decomposition temperature. Therefore, adding a small amount of submicron-sized h-BN can improve the radiation resistance of epoxy resin. This work has theoretical and practical significance for the development of radiation-resistant epoxy resin composites.http://www.fs.sinap.ac.cn/thesisDetails#10.11889/j.1000-3436.2023-0040&lang=zhepoxy resinhexagonal boron nitrideradiation effectdensity functional theorybond cleavage |
| spellingShingle | PAN Zuxiong WANG Jiajian GE Zhiqing WANG Mozhen GE Xuewu Radiation effects of epoxy resin and h-BN/epoxy resin composites Fushe yanjiu yu fushe gongyi xuebao epoxy resin hexagonal boron nitride radiation effect density functional theory bond cleavage |
| title | Radiation effects of epoxy resin and h-BN/epoxy resin composites |
| title_full | Radiation effects of epoxy resin and h-BN/epoxy resin composites |
| title_fullStr | Radiation effects of epoxy resin and h-BN/epoxy resin composites |
| title_full_unstemmed | Radiation effects of epoxy resin and h-BN/epoxy resin composites |
| title_short | Radiation effects of epoxy resin and h-BN/epoxy resin composites |
| title_sort | radiation effects of epoxy resin and h bn epoxy resin composites |
| topic | epoxy resin hexagonal boron nitride radiation effect density functional theory bond cleavage |
| url | http://www.fs.sinap.ac.cn/thesisDetails#10.11889/j.1000-3436.2023-0040&lang=zh |
| work_keys_str_mv | AT panzuxiong radiationeffectsofepoxyresinandhbnepoxyresincomposites AT wangjiajian radiationeffectsofepoxyresinandhbnepoxyresincomposites AT gezhiqing radiationeffectsofepoxyresinandhbnepoxyresincomposites AT wangmozhen radiationeffectsofepoxyresinandhbnepoxyresincomposites AT gexuewu radiationeffectsofepoxyresinandhbnepoxyresincomposites |