Preparation and thermal properties of flame retardant phthalonitrile/epoxy blends

Zhao Xin; Lei Yajie; Zhao Rui; Liu Xiaobo

doi:10.1515/secm-2011-0123

Science and Engineering of Composite Materials (Mar 2012)

Preparation and thermal properties of flame retardant phthalonitrile/epoxy blends

Zhao Xin,
Lei Yajie,
Zhao Rui,
Liu Xiaobo

Affiliations

Zhao Xin: Research Branch of Advanced Functional Materials, Institute of Microelectronic and Solid State Electronic, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
Lei Yajie: Research Branch of Advanced Functional Materials, Institute of Microelectronic and Solid State Electronic, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
Zhao Rui: Research Branch of Advanced Functional Materials, Institute of Microelectronic and Solid State Electronic, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China
Liu Xiaobo: Research Branch of Advanced Functional Materials, Institute of Microelectronic and Solid State Electronic, University of Electronic Science and Technology of China, Chengdu 610054, P.R. China

DOI: https://doi.org/10.1515/secm-2011-0123
Journal volume & issue: Vol. 19, no. 1
pp. 89 – 92

Abstract

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The blends were successfully prepared by the copolymerization of 2,2-bis [4-(3, 4-dicyanophenoxy) phenyl] propane (BAPh) and epoxy resins E-44 (EP) in the presence of 4,4′-diaminodiphenyl sulfone (DDS) as curing additive. With the loading of BAPh in blends increasing from 10% to 50%, the excellent flame retardancy properties of the copolymers with the weight ratio of 20:80 of BAPh/EP achieved over 30 according to the limiting oxygen index test (LOI) values and V-0 grade of UL-94 measurement compared with the pure EP. The temperatures at weight loss 5% (T5%) of the pure EP were improved 16.4°C in nitrogen and 64.6°C in air when the ratio was 20:80. In addition, the gelation time was shortened to 3 min when the prepolymerization temperature was 190°C.

Published in Science and Engineering of Composite Materials

ISSN: 0792-1233 (Print); 2191-0359 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.degruyter.com/view/j/secm

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