复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (1): 86-90.DOI: 10.19936/j.cnki.2096-8000.20220128.013

• 应用研究 • 上一篇    下一篇

二氧化硅气凝胶/三元乙丙橡胶复合隔热材料的制备与性能研究

王振豪1, 陈勃2, 高飞3, 汪书苹4, 李向梅2, 刘晶冰1*   

  1. 1.北京工业大学 材料与制造学部,北京100124;
    2.北京理工大学 材料学院国家阻燃材料工程技术研究中心,北京100081;
    3.中国电力科学研究院有限公司 新能源与储能运行控制国家重点实验室,北京100192;
    4.国网安徽省电力有限公司 电力科学研究院电力火灾与安全防护安徽省重点实验室,合肥230022
  • 收稿日期:2021-03-24 出版日期:2022-01-28 发布日期:2022-02-10
  • 通讯作者: 刘晶冰(1978-),女,博士,副教授,主要从事锂离子储能电池材料以及碳纳米材料方面的研究,liujingbing@bjut.edu.cn。
  • 作者简介:王振豪(1996-),男,硕士研究生,主要从事储能安全、储能防护材料设计制备方面的研究。
  • 基金资助:
    国家电网有限公司总部科技项目“锂离子电池储能系统主动协同安全防护技术开发与应用研究”(DG71-20-025)

Study on preparation and performance of silica aerogel/EPDM composite thermal insulation material

WANG Zhen-hao1, CHEN Bo2, GAO Fei3, WANG Shu-ping4, LI Xiang-mei2, LIU Jing-bing1*   

  1. 1. Department of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China;
    2. Beijing Institute of Technology, School of Materials Science and Engineering, National Engineering Research Center of Flame Retardant Materials, Beijing 100081, China;
    3. China Electric Power Research Institute State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, Beijing 100192, China;
    4. Anhui Province Key Laboratory for Electric Fire and Safety Protection of State Grid Anhui Electric Power Research Institute, Hefei 230022, China
  • Received:2021-03-24 Online:2022-01-28 Published:2022-02-10

摘要: 本文合成制备了SA/EPDM隔热复合材料,研究了不同SA/EPDM含量比例以及添加阻燃剂后的复合材料的隔热性能、热稳定性能以及力学性能。当火源温度为300 ℃和500 ℃时,SA含量为70%的复合材料背面温度维持在130 ℃和250 ℃,导热系数为0.2253 W/m·K。热失重分析结果表明,SA含量的升高虽然没有延缓材料的高温降解速率,但是SA含量的加入减小了复合材料玻璃化转变放热量,在促进材料成炭中起到了积极作用,残碳量最高为50.67%,并且复合材料力学性能表现优秀,拉伸强度可达22.45 MPa,断裂伸长率可达661.90%。

关键词: 二氧化硅气凝胶, 三元乙丙橡胶, 隔热, 复合材料

Abstract: In this paper, SA/EPDM thermal insulation composite materials were synthesized and prepared, and the thermal insulation performance, thermal stability performance and mechanical properties of the composite materials with different SA/EPDM content ratios and the addition of flame retardants were studied. When the fire source temperature is 300 ℃ and 500 ℃, the back surface temperature of the composite material with 70% SA content is maintained at 130 ℃ and 250 ℃, and the thermal conductivity is 0.2253 W/m·K. The thermal weight loss analysis shows that although the increase of SA content does not delay the high-temperature degradation rate of the material, the addition of SA content reduces the heat of glass transition of the composite material, and plays a positive role in promoting the carbon formation of the material. The highest is 50.67%, and the mechanical properties of the composite material are excellent, the tensile strength can reach 22.45 MPa, and the elongation at break can reach 661.90%.

Key words: silica aerogel, EPDM rubber, insulation, composites

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