耐温400℃、低损耗改性氰酸酯载体胶膜的制备及性能
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

O633.4

基金项目:


Preparation and Properties of High Temperature Resistant(400℃) and Low Dielectric Loss Modified Cyanate Ester Resin Based Adhesive Film
Author:
Affiliation:

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:

    采用双酚E型氰酸酯树脂(BECE)和端羟基聚醚砜(Mx)共改性酚醛型氰酸酯树脂(Novolac-CE),并将其与石英布复合制备出了一种耐温400℃、低损耗的改性氰酸酯载体胶膜。结果表明,适量的BECE和Mx热混合加入Novolac-CE树脂中,改善了Novolac-CE的浸润性和韧性,其与石英纤维的接触角降至72.8°,冲击韧性提高到13 kJ/m2。相比于没经过处理的石英布,经过0.5% KH550/乙醇溶液处理的石英布与Novolac-CE树脂间的粘接强度最大提高70%,但是过多的KH550加入影响胶膜的耐热性。胶膜经200℃/4 h固化后,400℃时剪切强度大于5 MPa,且连续使用60 min后强度保持率大于80%,介电损耗为0.014。胶膜具有良好的自黏性并且室温适用期大于15 d,可作为耐高温(400℃)透波粘接材料应用。

    Abstract:

    Using the bisphenol E cyanate ester (BECE) and hydroxyl-terminated polyether sulfone (Mx) to co-modify novolac-cyanate ester (Novolac-CE) resin, and laminating with quartz cloth, a 400℃ temperature resistant and low dielectric loss supported structural adhesive film for bonding advanced radar radomes is developed. The results show that the impact toughness of Novolac-CE can be increased to 13 kJ/m2, and the contact angel decrease to 72.8°with the addition of suitable amount of BECE and Mx in Novolac-CE resin. The adhesion strength between the disposed quartz cloth by the KH550/ethonal solution and Novolac-CE can be 70% higher than original quartz cloth, but the excessive KH550 is negative for the thermal resistance of film. The lap shear strength of the film is measured to be more than 5 MPa at 400℃, where it can be continuously used for 60 min, the dielectric loss is 0.014 (10 GHz). The adhesive film has a shelf life of more than 15 days at ambient temperature and suitable tackiness, which can be applied as high temperature transparent materials.

    参考文献
    相似文献
    引证文献
引用本文

王冠,高堂铃,付刚,吴健伟,匡弘.耐温400℃、低损耗改性氰酸酯载体胶膜的制备及性能[J].宇航材料工艺,2018,48(1):49-53,75.

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:2017-09-14
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2018-02-01
  • 出版日期:
第十一届航天复合材料成形与加工工艺技术中心交流会 征文通知

关闭