排序方式: 共有2条查询结果,搜索用时 20 毫秒
1
1.
Masturi Mikrajuddin Abdullah Khairurrijal 《Journal of Material Cycles and Waste Management》2011,13(3):225-231
Simple mixing and hot pressing methods were used to make composites from home waste—in particular, paper and dry leaves—using
polyvinyl acetate (PVAc) as an adhesive and silica nanoparticles as filler. The optimum composition for the strongest composites,
in terms of compressive strength, had a mass ratio of silica nanoparticles/PVAc/(paper + dry leaves) of 3:80:280. With this
mass ratio, a compressive strength of 68.50 MPa was obtained for samples prepared at a pressing temperature of 150°C, pressing
pressure of 100 MPa, and pressing time of 20 min. The addition of silica nanoparticles increased the compressive strength
by about 50%, compared with composites made without the addition of nanosilica (45.60 MPa). Higher compressive strength was
obtained at a higher pressing pressure. At a pressing pressure of 120 MPa, pressing temperature of 150°C, and pressing time
of 20 min, a compressive strength of 69.10 MPa was obtained. When the pressing time was increased to 45 min at a pressing
pressure of 120 MPa, a compressive strength of 84.37 MPa was measured. A model was also proposed to explain the effects of
pressing pressure and pressing time on compressive strength. The model predictions were in good agreement with the experimental
data. 相似文献
2.
Haruno Subianto Bebeh W. Nuryadin Khairurrijal Hernawan Mahfudz Nur Dananjaya Mikrajuddin Abdullah 《Journal of Material Cycles and Waste Management》2013,15(2):210-217
A new method for decomposing organic pollutants in water is proposed. First, we used less pure titanium dioxide (TiO2) particles as a photocatalyst material to achieve an absorption band that would be as wide as the spectrum for visible sunlight. The TiO2 particles were coated onto the surface of transparent plastic fibers and used to decompose test solutions of rhodamine that were placed in open sunlight for several days. We observed an effective decomposition, and after completing the decomposition process, the fibers could be removed easily from the cleaned water leaving no TiO2 in the water. Because there was no significant change in the elemental composition of the fiber surface after being used for cleaning the water, the coated fiber can be used repeatedly. 相似文献
1