TY - JOUR
T1 - Self-healing, recoverable epoxy elastomers and their composites with desirable thermal conductivities by incorporating BN fillers via in-situ polymerization
AU - Yang, Xutong
AU - Guo, Yongqiang
AU - Luo, Xian
AU - Zheng, Nan
AU - Ma, Tengbo
AU - Tan, Jiaojun
AU - Li, Chunmei
AU - Zhang, Qiuyu
AU - Gu, Junwei
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/8/18
Y1 - 2018/8/18
N2 - 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 (λ 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, THRI of 149.9 °C). And the improvement in λ value of the mBN/thiol-epoxy elastomer composites was beneficial to the promotion of the self-healing systems relying on thermal response.
AB - 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 (λ 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, THRI of 149.9 °C). And the improvement in λ value of the mBN/thiol-epoxy elastomer composites was beneficial to the promotion of the self-healing systems relying on thermal response.
KW - A. Polymer-matrix composites (PMCs)
KW - B. Thermal properties
KW - C. Mechanical testing
KW - D. Compression molding
UR - http://www.scopus.com/inward/record.url?scp=85047309532&partnerID=8YFLogxK
U2 - 10.1016/j.compscitech.2018.05.038
DO - 10.1016/j.compscitech.2018.05.038
M3 - 文章
AN - SCOPUS:85047309532
SN - 0266-3538
VL - 164
SP - 59
EP - 64
JO - Composites Science and Technology
JF - Composites Science and Technology
ER -