Abstract
The current manuscript experimentally investigates the mechanical and wears properties of three different phenolic polymer nanocomposites. Samples are made of 1, 2 and 3wt.% of well-dispersed silica nanoparticles in a phenolic resin. Firstly, it was found that for the phenolic polymer, the Young’s modulus steadily increased as the weight percent of silica nanoparticles was increased except for 3wt.% nanoparticle filled samples. For the phenolic polymer with 1 and 2wt.% nano silica, Young’s modulus was increased 7% and 12.5%, respectively in comparison with the neat phenolic resin. However, for samples with 3% nanosilica this value showed a reduction about 13.5% and 2.7% in comparison to 2% nanoparticle filled samples and pure samples, respectively. Secondly, the presence of 2wt.% nano silica particles increased the hardness of the phenolic polymer by 27.3% compared with the pure phenolic resin. Also, it was shown by the results of scratch tests that nano silica has almost no effect on the coefficient of the friction and wear rates.
Published Version
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