Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 164, Issue -, Pages 59-64Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2018.05.038
Keywords
Polymer-matrix composites (PMCs); Thermal properties; Mechanical testing; Compression molding
Categories
Funding
- National Natural Science Foundation of China [51773169]
- Fundamental Research Funds for the Central Universities [3102017jg02003]
- State Key Laboratory of Solidification Processing in NPU [SKLSP201713]
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Thiol-epoxy elastomers were firstly prepared by thiol-epoxide nucleophilic ring-opening reaction, and the micron boron nitride (mBN) fillers were then introduced into the above system via in-situ polymerization, finally to prepare the highly thermally conductive, self-healing and recoverable mBN/thiol-epoxy elastomer composites by hot-pressing method. Results revealed that the thiol-epoxide reaction was highly efficient and stable. The obtained mBN/thiol-epoxy elastomer composite with 60 wt% mBN fillers presented the optimal thermal conductivity (lambda of 1.058 W/mK), excellent self-healing effect & efficiency which is achieved via transesterification reaction (Tensile strength after self-healing could maintain at more than 85% compared to that of original composites), wonderful recoverable performance (Tensile strength after post forming could maintain over 70% compared to that of original composites) and good thermal stability (Theat-resistance index, T-HRI of 149.9 degrees C). And the improvement in lambda value of the rnBN/thiol-epoxy elastomer composites was beneficial to the promotion of the self-healing systems relying on thermal response.
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