通过石墨改性技术制备高性能耐辐射三元乙丙橡胶复合材料的简便途径

IF 3.1 4区工程技术 Q2 POLYMER SCIENCE

Polymers for Advanced Technologies Pub Date : 2024-08-05 DOI:10.1002/pat.6525

Shengnan Jiang, Runqi Zhang, Shuqiang Ding, Shangyi Yang, Hongzhen Wang

{"title":"通过石墨改性技术制备高性能耐辐射三元乙丙橡胶复合材料的简便途径","authors":"Shengnan Jiang, Runqi Zhang, Shuqiang Ding, Shangyi Yang, Hongzhen Wang","doi":"10.1002/pat.6525","DOIUrl":null,"url":null,"abstract":"Modification and improvement of aging resistance in nuclear power environment for the ethylene‐propylene‐diene (EPDM) rubber has been attracting the attention of scientists. In this article, graphite modified EPDM composites (ultrafine graphite [UG]/EPDM) were prepared, and effect of graphite with sizes of 13, 2.6, and 1.3 μm on the processability, vulcanization parameters, mechanical properties, stability of radiation aging of EPDM composites were investigated, respectively. The results showed that EPDM rubber was an irradiated crosslinked polymer. The Mooney viscosity and crosslinking density of EPDM gradually increased with increasing graphite content under the effect of physical and chemical cross‐linking of graphite. The lamellar structure of graphite particles in the rubber matrix is beneficial to improvement of the mechanical properties and aging resistance of the EPDM composites and play a reinforcing role, and the sp2 hybrid structure of graphite can trap and quench free radicals, delayed the irradiation aging of EPDM. UG/EPDM composites irradiation stability was improved with increasing graphite dispersion in EPDM matrix. Under the cumulative irradiation dose of 1000 kGy, the tensile strength of blank sample and UG‐2.6 μm−10 decreased by 51.1% and 17.7%, respectively, and the hardness increased by 8.7% and 4.9%, respectively. The energy storage modulus and the corresponding glass transition temperature (Tg) of UG/EPDM composites enhanced with graphite, while the thermal stability of the composites was improved.","PeriodicalId":20382,"journal":{"name":"Polymers for Advanced Technologies","volume":"36 1","pages":""},"PeriodicalIF":3.1000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"One facile route to prepare high‐performance radiation resistant EPDM rubber composites through graphite modification technology\",\"authors\":\"Shengnan Jiang, Runqi Zhang, Shuqiang Ding, Shangyi Yang, Hongzhen Wang\",\"doi\":\"10.1002/pat.6525\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Modification and improvement of aging resistance in nuclear power environment for the ethylene‐propylene‐diene (EPDM) rubber has been attracting the attention of scientists. In this article, graphite modified EPDM composites (ultrafine graphite [UG]/EPDM) were prepared, and effect of graphite with sizes of 13, 2.6, and 1.3 μm on the processability, vulcanization parameters, mechanical properties, stability of radiation aging of EPDM composites were investigated, respectively. The results showed that EPDM rubber was an irradiated crosslinked polymer. The Mooney viscosity and crosslinking density of EPDM gradually increased with increasing graphite content under the effect of physical and chemical cross‐linking of graphite. The lamellar structure of graphite particles in the rubber matrix is beneficial to improvement of the mechanical properties and aging resistance of the EPDM composites and play a reinforcing role, and the sp2 hybrid structure of graphite can trap and quench free radicals, delayed the irradiation aging of EPDM. UG/EPDM composites irradiation stability was improved with increasing graphite dispersion in EPDM matrix. Under the cumulative irradiation dose of 1000 kGy, the tensile strength of blank sample and UG‐2.6 μm−10 decreased by 51.1% and 17.7%, respectively, and the hardness increased by 8.7% and 4.9%, respectively. The energy storage modulus and the corresponding glass transition temperature (Tg) of UG/EPDM composites enhanced with graphite, while the thermal stability of the composites was improved.\",\"PeriodicalId\":20382,\"journal\":{\"name\":\"Polymers for Advanced Technologies\",\"volume\":\"36 1\",\"pages\":\"\"},\"PeriodicalIF\":3.1000,\"publicationDate\":\"2024-08-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Polymers for Advanced Technologies\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1002/pat.6525\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymers for Advanced Technologies","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/pat.6525","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

摘要

改性乙丙橡胶（EPDM）并提高其在核电环境中的耐老化性一直受到科学家们的关注。本文制备了石墨改性三元乙丙橡胶（EPDM）复合材料（超细石墨[UG]/EPDM），分别研究了 13、2.6 和 1.3 μm 尺寸的石墨对三元乙丙橡胶复合材料的加工性、硫化参数、力学性能和辐照老化稳定性的影响。结果表明，三元乙丙橡胶是一种辐照交联聚合物。在石墨的物理和化学交联作用下，随着石墨含量的增加，三元乙丙橡胶的门尼粘度和交联密度逐渐增大。石墨颗粒在橡胶基体中的层状结构有利于改善三元乙丙橡胶复合材料的力学性能和耐老化性能，起到补强作用，石墨的sp2杂化结构可以捕获和淬灭自由基，延缓三元乙丙橡胶的辐照老化。UG/EPDM复合材料的辐照稳定性随着石墨在EPDM基体中分散度的增加而提高。在 1000 kGy 的累积辐照剂量下，空白样品和 UG-2.6 μm-10 的拉伸强度分别降低了 51.1%和 17.7%，硬度分别提高了 8.7%和 4.9%。加入石墨后，UG/EPDM 复合材料的储能模量和相应的玻璃化转变温度（Tg）均有所提高，同时复合材料的热稳定性也得到了改善。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

One facile route to prepare high‐performance radiation resistant EPDM rubber composites through graphite modification technology

Modification and improvement of aging resistance in nuclear power environment for the ethylene‐propylene‐diene (EPDM) rubber has been attracting the attention of scientists. In this article, graphite modified EPDM composites (ultrafine graphite [UG]/EPDM) were prepared, and effect of graphite with sizes of 13, 2.6, and 1.3 μm on the processability, vulcanization parameters, mechanical properties, stability of radiation aging of EPDM composites were investigated, respectively. The results showed that EPDM rubber was an irradiated crosslinked polymer. The Mooney viscosity and crosslinking density of EPDM gradually increased with increasing graphite content under the effect of physical and chemical cross‐linking of graphite. The lamellar structure of graphite particles in the rubber matrix is beneficial to improvement of the mechanical properties and aging resistance of the EPDM composites and play a reinforcing role, and the sp2 hybrid structure of graphite can trap and quench free radicals, delayed the irradiation aging of EPDM. UG/EPDM composites irradiation stability was improved with increasing graphite dispersion in EPDM matrix. Under the cumulative irradiation dose of 1000 kGy, the tensile strength of blank sample and UG‐2.6 μm−10 decreased by 51.1% and 17.7%, respectively, and the hardness increased by 8.7% and 4.9%, respectively. The energy storage modulus and the corresponding glass transition temperature (Tg) of UG/EPDM composites enhanced with graphite, while the thermal stability of the composites was improved.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Polymers for Advanced Technologies 工程技术-高分子科学

CiteScore

6.20

自引率

5.90%

发文量

337

审稿时长

2.1 months

期刊介绍： Polymers for Advanced Technologies is published in response to recent significant changes in the patterns of materials research and development. Worldwide attention has been focused on the critical importance of materials in the creation of new devices and systems. It is now recognized that materials are often the limiting factor in bringing a new technical concept to fruition and that polymers are often the materials of choice in these demanding applications. A significant portion of the polymer research ongoing in the world is directly or indirectly related to the solution of complex, interdisciplinary problems whose successful resolution is necessary for achievement of broad system objectives. Polymers for Advanced Technologies is focused to the interest of scientists and engineers from academia and industry who are participating in these new areas of polymer research and development. It is the intent of this journal to impact the polymer related advanced technologies to meet the challenge of the twenty-first century. Polymers for Advanced Technologies aims at encouraging innovation, invention, imagination and creativity by providing a broad interdisciplinary platform for the presentation of new research and development concepts, theories and results which reflect the changing image and pace of modern polymer science and technology. Polymers for Advanced Technologies aims at becoming the central organ of the new multi-disciplinary polymer oriented materials science of the highest scientific standards. It will publish original research papers on finished studies; communications limited to five typewritten pages plus three illustrations, containing experimental details; review articles of up to 40 pages; letters to the editor and book reviews. Review articles will normally be published by invitation. The Editor-in-Chief welcomes suggestions for reviews.