We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Improvements of Thermal, Mechanical, and Water-Resistance Properties of Polybenzoxazine/Boron Carbide Nanocomposites.
- Authors
Ramdani, Noureddine; Derradji, Mehdi; Wang, Jun; Mokhnache, El-Oualid; Liu, Wen-Bin
- Abstract
Novel kinds of nanocomposites based on bisphenol A-aniline based polybenzoxazine matrix P(BA-a) and 0 wt.%-20 wt.% boron carbide (BC) nanoparticles were produced and their properties were evaluated in terms of the nano-BC content. The thermal conductivity of the P(BA-a) matrix was improved approximately three times from 0.18 W/m K to 0.86 W/m K at 20 wt.% nano-BC loading, while its coefficient of thermal expansion (CTE) was deceased by 47% with the same nanofiller content. The microhardness properties were significantly improved by adding the BC nanoparticles. At 20 wt.% of nano-BC content, dynamic mechanical analysis (DMA) revealed a marked increase in the storage modulus and the glass transition temperature ( T ) of the nanocomposites, reaching 3.9 GPa and 204°C, respectively. Hot water uptake tests showed that the water-resistance of the polybenzoxazine matrix was increased by filling with nano-BC nano-filler. The morphological analysis reflected that the improvements obtained in the mechanical and thermal properties are related to the uniform dispersion of the nano-BC particles and their strong adhesion to the P(BA-a) matrix.
- Subjects
NANOCOMPOSITE materials; BISPHENOL A; ANILINE; BORON carbides; BENZENE compound synthesis
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2016, Vol 68, Issue 9, p2533
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-016-2040-9