Improvement of thermal conductivity and mechanical properties for polybenzoxazine composites via incorporation of epoxy resin and segregated structure
Wang Y, Wu W, Drummer D, Liu C, Tomiak F, Schneider K (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 7
Journal Issue: 9
Abstract
Developing tendency of increasing integration in electronic components filed led to the demand for thermally conductive polymer materials. Forming a segregated structure with thermally conductive fillers in the matrix has been proven to be a promising technique. However, the mechanical properties of the material prepared via this technique are commonly sacrificed because the interaction between fillers and matrix are weak. We present a simple method to improve the mechanical properties while maintaining the segregated structure via the collaboration of epoxy and polybenzoxazine(PBz). The fillers, epoxy resin, and benzoxazine(BOZ) were mixed and then hot pressed under 12 MPa of pressure with a certain heating strategy. The thermal conductivity, density, mechanical properties, morphology, and thermal stability of the composites were investigated. With 25 wt% filler, the value of thermal conductivity coefficient of EP/PBz composites reached 0.811 W mK(-1), while that of PBz composites was 0.762 W mK(-1). The tensile strength of the matrix improved from 58.3 MPa to 99.7 MPa.
Authors with CRIS profile
Dietmar Drummer
Lehrstuhl für Kunststofftechnik
Florian Tomiak
Lehrstuhl für Kunststofftechnik
Kevin Schneider
Lehrstuhl für Kunststofftechnik
Involved external institutions
China (CN)How to cite
APA:
Wang, Y., Wu, W., Drummer, D., Liu, C., Tomiak, F., & Schneider, K. (2020). Improvement of thermal conductivity and mechanical properties for polybenzoxazine composites via incorporation of epoxy resin and segregated structure. Materials Research Express, 7(9). https://dx.doi.org/10.1088/2053-1591/abb263
MLA:
Wang, Yi, et al. "Improvement of thermal conductivity and mechanical properties for polybenzoxazine composites via incorporation of epoxy resin and segregated structure." Materials Research Express 7.9 (2020).
BibTeX: Download