三元乙丙橡胶绝热层混炼胶贮存老化性能研究
CSTR:
作者:
作者单位:

湖北航天化学技术研究所,襄阳 441003

作者简介:

通讯作者:

中图分类号:

V435

基金项目:


Research on Storage Aging Performance of Rubber Compound of EPDM Insulation Layer
Author:
Affiliation:

Hubei Institute of Aerospace Chemical Technology,Xiangyang 441003

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    绝热层混炼胶老化性能决定了绝热层使用前的贮存时间,为了掌握绝热层混炼胶贮存时间对绝热层后续使用性能的影响,以控制绝热层混炼胶贮存时间,采用热氧老化试验研究绝热层混炼胶老化不同时间后性能的变化。结果表明,随着老化时间延长,硫化剂(DCP)在高温条件下发生分解、三元乙丙橡胶(EPDM)分子链发生断裂,绝热层力学性能、硫化性能、粘接性能及凝胶分数逐渐降低,其他理化性能无明显变化。由此说明为有效提高绝热层高温贮存有效期,延长使用寿命,应严格关注贮存温度同时远离光照及紫外线照射。

    Abstract:

    The aging property of the rubber compound of insulation layer determined the storage time before the use of the insulation layer. In order to grasp the influence of the storage time of the rubber compound of insulation layer on the subsequent performance of the insulation layer, the storage time of the rubber compound of insulation layer was controlled.The thermal oxygen aging test was used to study the change of properties of the rubber compound of insulation layer after different aging time. The results show that, with the extension of the aging time, the DCP decomposes and the molecular chain of EPDM breaks at high temperature, the mechanical properties, vulcanization properties, adhesive properties and gel content of the rubber compound of insulation layer decreases, while other physicochemical properties do not change significantly. Therefore, in order to effectively improve the storage period of the insulation layer at high temperature and extend the service life, the strict attention should be paid to storage temperature and keeping away from light and ultraviolet radiation.

    参考文献
    相似文献
    引证文献
引用本文

陈雯,陈馨,吴磊,王明超,强福智.三元乙丙橡胶绝热层混炼胶贮存老化性能研究[J].宇航材料工艺,2024,54(2):136-142.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-12-12
  • 最后修改日期:2024-04-20
  • 录用日期:2023-06-20
  • 在线发布日期: 2024-04-29
  • 出版日期:
文章二维码