化工学报 ›› 2018, Vol. 69 ›› Issue (S1): 148-154.DOI: 10.11949/j.issn.0438-1157.20180197

• 材料化学工程与纳米技术 • 上一篇    下一篇

蒙脱土/聚醚砜-双马来酰亚胺复合材料微观形貌及性能

陈宇飞1,2, 耿成宝1, 楚洪月1, 汪波涛1, 郭红缘1, 岳春艳1   

  1. 1 哈尔滨理工大学材料科学与工程学院, 黑龙江 哈尔滨 150040;
    2 哈尔滨理工大学工程电介质及应用技术教育部重点实验室, 黑龙江 哈尔滨 150080
  • 收稿日期:2018-02-12 修回日期:2018-03-01 出版日期:2018-09-30 发布日期:2018-09-30
  • 通讯作者: 陈宇飞(1963-),女,教授,E-mail:chenyufei@hrbust.edu.cn
  • 基金资助:

    哈尔滨创新人才专项(2015RAXXJ029)。

Micro-morphology and properties of modified MMT/PES-MBAE composite

CHEN Yufei1,2, GENG Chengbao1, CHU Hongyue1, WANG Botao1, GUO Hongyuan1, YUE Chunyan1   

  1. 1 College of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, Heilongjiang, China;
    2 Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China
  • Received:2018-02-12 Revised:2018-03-01 Online:2018-09-30 Published:2018-09-30
  • Supported by:

    supported by the Harbin Innovation Talent Project (2015RAXXJ029).

摘要:

采用十八烷基三甲基氯化铵(OTAC)作为改性剂、通过离子交换法制备了改性蒙脱土(OTAC-MMT);以4,4'-二氨基二苯甲烷双马来酰亚胺(MBMI)、3,3'-二烯丙基双酚A(BBA)及双酚A双烯丙基醚(BBE)为原料制备了复合材料基体(MBAE);利用原位聚合法将OTAC-MMT和聚醚砜(PES)掺杂基体中制备OTAC-MMT/PES-MBAE复合材料。XRD结果分析表明:OTAC-MMT层间距相对于Na-MMT有明显增大。SEM微观形貌显示:OTAC-MMT片层结构更加明显且分散均匀;复合材料的表面更加粗糙,改性蒙脱土分散均匀,PES与基体树脂呈两相结构,出现了向不同方向发展的银纹和微裂纹,呈韧性断裂。当OMMT质量分数为2%、PES为3%时,OTAC-MMT/PES-MBAE复合材料的冲击强度和弯曲强度分别为14.54 kJ·m-2和149.12 MPa,较MBAE树脂分别提高了55.5%和47.2%。介电性能测试表明:OTAC-MMT/PES-MBAE复合材料介电常数和损耗略有上升,但仍满足材料的使用要求。

关键词: 4,4'-二氨基二苯甲烷双马来酰亚胺, 蒙脱土, 十八烷基三甲基氯化铵, 微观形貌, 性能

Abstract:

Cetyltrimethyl ammonium chloride(OTAC) as modifier, modified montmorillonite(OTAC-MMT) was prepared via cation exchange. 4,4'-diamino diphenyl methane bismaleimide(MBMI), 3,3'-diallyl bisphenol A(BBA) and bisphenol-A diallyl ether(BBE) were used to synthesize MBAE matrix, OTAC-MMT/PES-MBAE composites were prepared from MBAE, OTAC-MMT and PES by in-situ polymerization method, respectively. The XRD result revealed that the interlayer spacing of OTAC-MMT increase obviously, which compared with Na-MMT. The SEM micro-morphology displayed that the layer structure of OTAC-MMT was more apparent and dispersed uniformly, the surface of composites were more rough than that of MBAE, PES and MBAE matrix presented two-phase, crazing and microcrack which direct in different directions were appeared, exhibited ductile fracture. When the mass fraction of OTAC-MMT was 2%, PES content was 4%, the impact strength and the bending strength of OTAC-MMT/PES-MBAE were 14.54 kJ·m-2 and 143.12 MPa, enhance 55.5% and 47.2% than that of MBAE matrix, respectively. The dielectric constant and loss of the composite material showed a little increase while OTAC-MMT and PES exist, but OTAC-MMT could reduce the negative impacts of PES.

Key words: 4,4'-diamino diphenyl methane bismaleimide, montmorillonite, cetyltrimethyl ammonium chloride, microstructure, properties

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