Effects of Nano TiO2 Content on Properties of PVC/Rice Husk Powder Wood-Plastic Composites
Nano TiO2,rice husk powder,poly(vinyl chloride) (PVC) and stabilizer and so on were blended according to certain proportion to prepare PVC/rice husk powder wood plastic composites with the extrusion. The effects of nano TiO2 content on the properties of the wood plastic composites were examined. The experimental results show that the mechanical properties,waterproof performance and thermal stability ofthe wood plastic composites first increase then decrease,but surface colors become shallow gradually along with nano TiO2 content increasing. The wood plastic composite which the content of nano TiO2 is 1.00 phr has best comprehensive properties,compared with non-adding nano TiO2 wood plastic composite,the tensile strength,impact strength,and bending strength are increased by 40.6%,62.2% and 19.7% respectively,the water absorption rate for 8 days is reduced from 2.5% to 1.6%,the contact angle is increased from 78.5°to 82.1°,and the content of remaining carbon at 800℃ is increased from 21.1% to 29.5%. The surface color of the wood plastic composites become shallow gradually along with nano TiO2 content increasing.
NETL
NSTL
万方数据
维普
