纳米Al<sub>2</sub>O<sub>3</sub>/聚醚砜-环氧树脂复合材料的介电性能及热稳定性能

doi:10.11896/j.issn.1005-023X.2017.020.005

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Abstract The nano-Al₂O₃/polyether sulfone-epoxy resin (EP/5PES/1Al₂O₃) composites were fabricated and the effects of different nano-Al₂O₃ and PES addition on the mechanical, dielectric and thermal stability properties of composite were also investigated. The results shows that the tensile strength, elongation at break and impact strength of EP/5PES/1Al₂O₃ composite arrive at 58 MPa, 13% and 16.2 kJ/m², respectively, which increase by 61.1%, 20.3% and 8.0% compared to the pure epoxy resin. Additio-nally, the EP/5PES/1Al₂O₃ composite show higher dielectric constant and dielectric loss of 7.6 and 0.016 (100 Hz) compared with the pure epoxy resin. The thermogravimetric analysis (TG) results shows that the thermal stability of EP/5PES/1Al₂O₃ composites has been improved and its initial decomposition temperature is improved to 358 ℃, which is 14 ℃ higher than that of the pure epoxy resin, indicating a great improvement to thermal stability of composites.

Key words： nano-Al₂O₃ polyether sulfone epoxy resin dielectric properties thermal stability

Published: 05 May 2018

CLC number:

TB332

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	Articles by authors
	WU Wei
	CHEN Shiying
	ZONG Mengjingzi

Cite this article:

WU Wei,CHEN Shiying,ZONG Mengjingzi. Dielectric Properties and Thermal Stability of Nano-Al₂O₃/Polyether Sulfone-epoxy Resin Composites[J]. Materials Reports, 2017, 31(20): 21-24.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.020.005 OR http://www.mater-rep.com/EN/Y2017/V31/I20/21

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