TY - JOUR
T1 - Improved dielectric properties, mechanical properties, and thermal conductivity properties of polymer composites via controlling interfacial compatibility with bio-inspired method
AU - Ruan, Mengnan
AU - Yang, Dan
AU - Guo, Wenli
AU - Zhang, Liqun
AU - Li, Shuxin
AU - Shang, Yuwei
AU - Wu, Yibo
AU - Zhang, Min
AU - Wang, Hao
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/5/1
Y1 - 2018/5/1
N2 - Surface functionalization of Al 2 O 3 nano-particles by mussel-inspired poly(dopamine) (PDA) was developed to improve the dielectric properties, mechanical properties, and thermal conductivity properties of nitrile rubber (NBR) matrix. As strong adhesion of PDA to Al 2 O 3 nano-particles and hydrogen bonds formed by the catechol groups of PDA and the polar acrylonitrile groups of NBR, the dispersion of Al 2 O 3 -PDA/NBR composites was improved and the interfacial force between Al 2 O 3 -PDA and NBR matrix was enhanced. Thus, the Al 2 O 3 -PDA/NBR composites exhibited higher dielectric constant, better mechanical properties, and larger thermal conductivity comparing with Al 2 O 3 /NBR composites at the same filler content. The largest thermal conductivity of Al 2 O 3 -PDA/NBR composite filled with 30 phr Al 2 O 3 -PDA was 0.21 W/m K, which was 122% times of pure NBR. In addition, the Al 2 O 3 -PDA/NBR composite filled with 30 phr Al 2 O 3 -PDA displayed a high tensile strength about 2.61 MPa, which was about 255% of pure NBR. This procedure is eco-friendly and easy handling, which provides a promising route to polymer composites in application of thermal conductivity field.
AB - Surface functionalization of Al 2 O 3 nano-particles by mussel-inspired poly(dopamine) (PDA) was developed to improve the dielectric properties, mechanical properties, and thermal conductivity properties of nitrile rubber (NBR) matrix. As strong adhesion of PDA to Al 2 O 3 nano-particles and hydrogen bonds formed by the catechol groups of PDA and the polar acrylonitrile groups of NBR, the dispersion of Al 2 O 3 -PDA/NBR composites was improved and the interfacial force between Al 2 O 3 -PDA and NBR matrix was enhanced. Thus, the Al 2 O 3 -PDA/NBR composites exhibited higher dielectric constant, better mechanical properties, and larger thermal conductivity comparing with Al 2 O 3 /NBR composites at the same filler content. The largest thermal conductivity of Al 2 O 3 -PDA/NBR composite filled with 30 phr Al 2 O 3 -PDA was 0.21 W/m K, which was 122% times of pure NBR. In addition, the Al 2 O 3 -PDA/NBR composite filled with 30 phr Al 2 O 3 -PDA displayed a high tensile strength about 2.61 MPa, which was about 255% of pure NBR. This procedure is eco-friendly and easy handling, which provides a promising route to polymer composites in application of thermal conductivity field.
KW - Al O particles
KW - Dielectric properties
KW - Mechanical properties
KW - Nitrile rubber
KW - Thermal conductivity
UR - https://www.scopus.com/pages/publications/85040360844
U2 - 10.1016/j.apsusc.2017.12.250
DO - 10.1016/j.apsusc.2017.12.250
M3 - 文章
AN - SCOPUS:85040360844
SN - 0169-4332
VL - 439
SP - 186
EP - 195
JO - Applied Surface Science
JF - Applied Surface Science
ER -