期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 107, 期 -, 页码 570-578出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2018.02.006
关键词
Polymer-matrix composites (PMCs); Thermal properties; Mechanical testing; Casting
资金
- Foundation of National Natural Science Foundation of China [51773169, 51403175]
- China Aerospace Science and Industry Corporation [2017-HT-XG]
- Aeronautics Science Fund [2016ZF03010, 2015ZF53074]
- State Key Laboratory of Solid Lubrication of Lanzhou Institute of Chemical Physics [LSL-1715]
- Fundamental Research Funds for the Central Universities [3102017jg02003]
- Undergraduate Innovation & Business Program in NPU [201710699268, 201710699382]
DCPDCE/BADCy hybrid resin and BN fillers were performed to fabricate the thermally conductive BN/DCPDCE/BADCy composites. When the molar ratio of DCPDCE/BADCy was 0.4/0.6, the dielectric constant (epsilon) and dielectric loss tangent (tg delta) value of the DCPDCE/BADCy hybrid resin was decreased to 2.92 and 5.08 x 10(-3), respectively. Impact and flexural strength was increased to 10.7 kJ/m(2) and 100.7 MPa, respectively. And the heat-resistance index (T-HRI) was 201.6 degrees C. Furthermore, the thermally conductive coefficient (lambda) of the BN/DCPDCE/BADCy composite with 30 wt% BN fillers was improved to 0.64 W/mK, about 3 times in comparison to that of pristine DCPDCE/BADCy hybrid resin. Compared to that of Maxwell and Russell models, our proposed thermally conductive model could predict the experimental lambda values more precisely. T-HRI value was enhanced from 201.6 degrees C (Pristine DCPDCE/BADCy hybrid resin) to 206.6 degrees C. Moreover, the BN/DCPDCE/BADCy composite with 10 wt% BN presented the optimal impact strength (11.7 kJ/m(2)) and flexural strength (108.4 MPa).
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