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基于含环三磷腈的环氧聚合物的复合材料的流变学与电学研究

Rheological and Electrical Study of a Composite Material Based on an Epoxy Polymer Containing Cyclotriphosphazene.

作者信息

Dagdag O, El Gouri M, El Mansouri A, Outzourhit A, El Harfi A, Cherkaoui O, El Bachiri A, Hamed O, Jodeh S, Hanbali G, Khalaf B

机构信息

Laboratory of Industrial Technologies and Services (LITS), Department of Process Engineering, Height School of Technology, Sidi Mohammed Ben Abdallah University, P.O. Box 2427, Fez 30000, Morocco.

LPSCM, Department of physics, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakech PB 2390, Morocco.

出版信息

Polymers (Basel). 2020 Apr 16;12(4):921. doi: 10.3390/polym12040921.

DOI:10.3390/polym12040921
PMID:32316145
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7240388/
Abstract

In this work, we have studied, formulated, prepared, and characterized the rheological and electrical behavior of a composite material based on an epoxy resin Diglycidyl Ether of Bisphenol A (DGEBA) reinforced with hexaglycidyl cyclotriphosphazene (HGCP). The epoxy system was cured with 4,4'-methylene dianiline (MDA). DGEBA-HGCP-MDA epoxy composite materials with reinforced HGCP which varied from 5% to 10% by weight were prepared by mixing in the molten state. The morphology was evaluated by SEM. The rheological behavior was studied using small deformation rheology. The electrical characterization was carried out with a frequency variation range from 1 Hz to 100 KHz at room temperature. These measurements revealed that the rheological and electrical behaviors strongly depend on the quantity of HGCP in the DGEBA matrix. The linear viscoelastic properties study reveals that the modulus of elasticity G' is dependent on the amount of HGCP present in the epoxy resin DGEBA. The capacitance-frequency measurements suggest a distribution of localized states in the band gap of the blends.

摘要

在这项工作中，我们研究、制定、制备并表征了一种基于双酚A二缩水甘油醚（DGEBA）环氧树脂并以六缩水甘油基环三磷腈（HGCP）增强的复合材料的流变学和电学行为。该环氧体系用4,4'-亚甲基二苯胺（MDA）固化。通过在熔融状态下混合制备了HGCP增强量为5%至10%（重量）的DGEBA-HGCP-MDA环氧复合材料。通过扫描电子显微镜（SEM）评估其形态。使用小变形流变学研究流变行为。在室温下，在1Hz至100kHz的频率变化范围内进行电学表征。这些测量结果表明，流变学和电学行为强烈依赖于DGEBA基体中HGCP的含量。线性粘弹性性能研究表明，弹性模量G'取决于环氧树脂DGEBA中HGCP的含量。电容-频率测量表明共混物的带隙中存在局域态分布。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/661e70341057/polymers-12-00921-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/1ec9090c5085/polymers-12-00921-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/2a448174a6d2/polymers-12-00921-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/3f504d54e629/polymers-12-00921-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/9e57fc0bd9aa/polymers-12-00921-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/a6e7dddff76c/polymers-12-00921-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/d551f79a0403/polymers-12-00921-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/ae7a75543e82/polymers-12-00921-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/661e70341057/polymers-12-00921-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/1ec9090c5085/polymers-12-00921-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/2a448174a6d2/polymers-12-00921-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/3f504d54e629/polymers-12-00921-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/9e57fc0bd9aa/polymers-12-00921-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/a6e7dddff76c/polymers-12-00921-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/d551f79a0403/polymers-12-00921-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/ae7a75543e82/polymers-12-00921-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d9b3/7240388/661e70341057/polymers-12-00921-g008.jpg

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