Facile and rapid synthesis of core-shell structured MXene@Ag@PA hybrids for enhanced fire safety and radiation cross-linking in EVA/MH composites

IF 6.3 2区化学 Q1 POLYMER SCIENCE Polymer Degradation and Stability Pub Date : 2024-06-27 DOI:10.1016/j.polymdegradstab.2024.110905

Huijie Qin , Tongwei Zhang , Lihong Bao , Bo Dang , Jianxi Li

{"title":"Facile and rapid synthesis of core-shell structured MXene@Ag@PA hybrids for enhanced fire safety and radiation cross-linking in EVA/MH composites","authors":"Huijie Qin , Tongwei Zhang , Lihong Bao , Bo Dang , Jianxi Li","doi":"10.1016/j.polymdegradstab.2024.110905","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, MXene@Ag@PA hybrids were synthesized using radiation methods and chelation, aiming to enhance the key properties of EVA/MH composites, particularly their flame retardancy. The test results demonstrated that the addition of MXene@Ag@PA hybrids effectively reduced the amount of heat and smoke released during the combustion process of EVA composites. When 2 parts of MXene@Ag@PA hybrids were added, the peak heat release rate (pHRR) of the EVA/MH/2.0MXene@Ag@PA composite was reduced to 233 kW/m², representing a decrease of 78.5% and 63.3% compared to pure EVA and EVA/MH composites, respectively. Additionally, the time to reach the peak heat release rate was delayed to 300–400 s. Moreover, the MXene@Ag@PA hybrids further reduced the total smoke production (TSP) of the EVA composites to 3 m², which is 50% and 38.7% lower than that of pure EVA and EVA/MH composites, respectively. Besides providing significant flame-retardant enhancement to EVA/MH composites, the MXene@Ag@PA hybrids also acted as a radiation sensitizer. At an irradiation dose of 100 kGy, the addition of MXene@Ag@PA hybrids enhanced the cross-linking effect of EVA composites, thereby strengthening their mechanical properties.</p></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":null,"pages":null},"PeriodicalIF":6.3000,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Degradation and Stability","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141391024002490","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, MXene@Ag@PA hybrids were synthesized using radiation methods and chelation, aiming to enhance the key properties of EVA/MH composites, particularly their flame retardancy. The test results demonstrated that the addition of MXene@Ag@PA hybrids effectively reduced the amount of heat and smoke released during the combustion process of EVA composites. When 2 parts of MXene@Ag@PA hybrids were added, the peak heat release rate (pHRR) of the EVA/MH/2.0MXene@Ag@PA composite was reduced to 233 kW/m², representing a decrease of 78.5% and 63.3% compared to pure EVA and EVA/MH composites, respectively. Additionally, the time to reach the peak heat release rate was delayed to 300–400 s. Moreover, the MXene@Ag@PA hybrids further reduced the total smoke production (TSP) of the EVA composites to 3 m², which is 50% and 38.7% lower than that of pure EVA and EVA/MH composites, respectively. Besides providing significant flame-retardant enhancement to EVA/MH composites, the MXene@Ag@PA hybrids also acted as a radiation sensitizer. At an irradiation dose of 100 kGy, the addition of MXene@Ag@PA hybrids enhanced the cross-linking effect of EVA composites, thereby strengthening their mechanical properties.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

方便快捷地合成核壳结构 MXene@Ag@PA 混合物，增强 EVA/MH 复合材料的防火安全性和辐射交联性能

本研究采用辐射法和螯合法合成了MXene@Ag@PA杂化物，旨在提高EVA/MH复合材料的主要性能，尤其是阻燃性能。测试结果表明，添加 MXene@Ag@PA 混合物可有效降低 EVA 复合材料燃烧过程中释放的热量和烟雾量。当添加 2 份 MXene@Ag@PA 混合物时，EVA/MH/2.0MXene@Ag@PA 复合材料的峰值热释放率（pHRR）降低到 233 kW/m²，与纯 EVA 和 EVA/MH 复合材料相比，分别降低了 78.5% 和 63.3%。此外，MXene@Ag@PA 混合材料还进一步将 EVA 复合材料的总产烟量（TSP）降至 3 m²，比纯 EVA 和 EVA/MH 复合材料分别降低了 50%和 38.7%。MXene@Ag@PA 混合物除了能显著增强 EVA/MH 复合材料的阻燃性能外，还能起到辐射敏化剂的作用。在 100 kGy 的辐照剂量下，添加 MXene@Ag@PA 混合物可增强 EVA 复合材料的交联效果，从而提高其机械性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Polymer Degradation and Stability 化学-高分子科学

CiteScore

10.10

自引率

10.20%

发文量

325

审稿时长

23 days

期刊介绍： Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology. Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen and sunlight are the most important degradative agencies. In more specialised applications, degradation may be induced by high energy radiation, ozone, atmospheric pollutants, mechanical stress, biological action, hydrolysis and many other influences. The mechanisms of these reactions and stabilisation processes must be understood if the technology and application of polymers are to continue to advance. The reporting of investigations of this kind is therefore a major function of this journal. However there are also new developments in polymer technology in which degradation processes find positive applications. For example, photodegradable plastics are now available, the recycling of polymeric products will become increasingly important, degradation and combustion studies are involved in the definition of the fire hazards which are associated with polymeric materials and the microelectronics industry is vitally dependent upon polymer degradation in the manufacture of its circuitry. Polymer properties may also be improved by processes like curing and grafting, the chemistry of which can be closely related to that which causes physical deterioration in other circumstances.