Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 144, Issue -, Pages 185-192Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2017.03.027
Keywords
Polymer-matrix composites (PMCs); Thermal properties; Mechanical testing; Compression molding
Categories
Funding
- Foundation of National Natural Science Foundation of China [51403175]
- Foundation of Space Supporting Fund from CASIC [2014-HT-XGD]
- Foundation of Aeronautics Science Fund [2015ZF53071, 2015ZF53074, 2016ZF53010]
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In this paper, a novel interfacial compatibilizer of soluble epoxy-terminated poly (p-phenylene-2, 6-benzobisoxazole) precursor (epoxy-prePBO) was synthesized to modify bisphenol A cyanate ester (BADCy) resin via copolymerization. Compared to PBO fibers/BADCy wave-transparent composites, the obtained PBO fibers/epoxy-prePBO modified BADCy (PBO fibers/PBO-co-BADCy) wave-transparent composite with 7 wt epoxy-prePBO showed ultra-low dielectric constant (epsilon, 2.68) and dielectric loss tangent (tans, 0.0061) values, excellent mechanical properties (flexural strength, 658.5 MPa) and interlaminar shear strength (48.4 MPa), and outstanding thermal stability (THeat-resistance (index), 262.9 degrees C). These properties proved its potential in applications, such as in radomes and antenna system of aircrafts. (C) 2017 Elsevier Ltd. All rights reserved.
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