Efficiently enhancing thermal conductivity of polymer bonded explosives via the construction of primary-secondary thermal conductivity networks

IF 5 Q1 ENGINEERING, MULTIDISCIPLINARY

Defence Technology(防务技术) Pub Date : 2025-02-02 DOI:10.1016/j.dt.2025.01.018

Xunyi Wang , Peng Wang , Jie Chen , Zhipeng Liu , Yuxin Luo , Wenbin Yang , Guansong He

{"title":"Efficiently enhancing thermal conductivity of polymer bonded explosives via the construction of primary-secondary thermal conductivity networks","authors":"Xunyi Wang , Peng Wang , Jie Chen , Zhipeng Liu , Yuxin Luo , Wenbin Yang , Guansong He","doi":"10.1016/j.dt.2025.01.018","DOIUrl":null,"url":null,"abstract":"<div><div>Realizing effective enhancement in the thermally conductive performance of polymer bonded explosives (PBXs) is vital for improving the resultant environmental adaptabilities of the PBXs composites. Herein, a kind of primary-secondary thermally conductive network was designed by water-suspension granulation, surface coating, and hot-pressing procedures in the graphene-based PBXs composites to greatly increase the thermal conductive performance of the composites. The primary network with a three-dimensional structure provided the heat-conducting skeleton, while the secondary network in the polymer matrix bridged the primary network to increase the network density. The enhancement efficiency in the thermally conductive performance of the composites reached the highest value of 59.70% at a primary-secondary network ratio of 3:1. Finite element analysis confirmed the synergistic enhancement effect of the primary and secondary thermally conductive networks. This study introduces an innovative approach to designing network structures for PBX composites, significantly enhancing their thermal conductivity.</div></div>","PeriodicalId":58209,"journal":{"name":"Defence Technology(防务技术)","volume":"48 ","pages":"Pages 95-103"},"PeriodicalIF":5.0000,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Defence Technology(防务技术)","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214914725000388","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Realizing effective enhancement in the thermally conductive performance of polymer bonded explosives (PBXs) is vital for improving the resultant environmental adaptabilities of the PBXs composites. Herein, a kind of primary-secondary thermally conductive network was designed by water-suspension granulation, surface coating, and hot-pressing procedures in the graphene-based PBXs composites to greatly increase the thermal conductive performance of the composites. The primary network with a three-dimensional structure provided the heat-conducting skeleton, while the secondary network in the polymer matrix bridged the primary network to increase the network density. The enhancement efficiency in the thermally conductive performance of the composites reached the highest value of 59.70% at a primary-secondary network ratio of 3:1. Finite element analysis confirmed the synergistic enhancement effect of the primary and secondary thermally conductive networks. This study introduces an innovative approach to designing network structures for PBX composites, significantly enhancing their thermal conductivity.

Abstract Image

查看原文本刊更多论文

通过构建一次-二次导热网络有效提高聚合物粘结炸药的导热性

有效提高聚合物粘结炸药的导热性能是提高聚合物粘结炸药复合材料环境适应性的关键。在石墨烯基PBXs复合材料中，通过水悬浮造粒、表面涂覆、热压等工艺设计了一种初级-次级导热网络，大大提高了复合材料的导热性能。具有三维结构的初级网络提供了导热骨架，而聚合物基质中的次级网络桥接初级网络以增加网络密度。当主次网络比为3:1时，复合材料导热性能的增强效率最高，达到59.70%。有限元分析证实了主导热网络和次级导热网络的协同增强效应。本研究介绍了一种创新的方法来设计PBX复合材料的网络结构，显著提高其导热性。

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分钟内获得全文求助全文

来源期刊

Defence Technology(防务技术) Mechanical Engineering, Control and Systems Engineering, Industrial and Manufacturing Engineering

CiteScore

8.70

自引率

0.00%

发文量

728

审稿时长

25 days

期刊介绍： Defence Technology, a peer reviewed journal, is published monthly and aims to become the best international academic exchange platform for the research related to defence technology. It publishes original research papers having direct bearing on defence, with a balanced coverage on analytical, experimental, numerical simulation and applied investigations. It covers various disciplines of science, technology and engineering.