期刊
MATERIALS RESEARCH INNOVATIONS
卷 16, 期 1, 页码 19-24出版社
MANEY PUBLISHING
DOI: 10.1179/1433075X11Y.0000000019
关键词
Polymer reinforcement; Boehmite; Surface modification; Polystyrene; Styrene/butadiene/styrene; Vickers hardness; Nanoindentation hardness
The effectiveness of reinforcement of a polymer is known to depend on the strength of the interfaces between the reinforcement and the matrix. We have used polystyrene and a styrene-butadiene-styrene (SBS) copolymer as matrixes and ceramic boehmite gamma-AlO(OH) as reinforcement. We have applied boehmite both untreated and treated with sulphonic acid based surfactants with different alkyl groups. As expected, the coupling agents improve the adhesion between the polymers and the ceramic filler. The presence of boehmite and treatments affect the glass transition temperatures determined by dynamic mechanical analysis, nanoindentation hardness h(nanoindent) as well as Vickers microhardness h(Vickers). For SBS and SBS containing composites, the h(nanoindent/hVickers) ratio is a constant.
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