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The preparation and properties of PVA-TiO 2 hydrogel composites have been studied in this research. The results show that tensile strength and compression modulus of PVA-TiO 2 hydrogel composites increased significantly, but the elongation did not changed obviously compared with the PVA hydrogel, indicating the good interaction between inorganic nanoparticles and organic polymer. Friction performance of the hydrogels was discussed, the friction of PVA-TiO 2 hydrogel composites decrease than thedoi:10.1016/j.proeng.2011.12.612 fatcat:zxzkrntkhjarbnvqgg4jjbbqnm