Taiwan Textile Research Institute | Date: 2014-12-29
A composite membrane includes a hydrophobic porous membrane and a high water content hydrogel layer disposed on the surface of the hydrophobic porous membrane facing the hot end. The surface active agents contained in the wastewater at the hot end are blocked by the high water content hydrogel layer, thus the problem of pore wetting of the hydrophobic porous membrane can be prevented. Therefore, the membrane distillation technique can be utilized for processing wastewater containing surface active agents.
Taiwan Textile Research Institute | Date: 2014-10-28
An ion-exchange membrane is provided, and the fibers of the ion-exchange membrane are obtained by electrospinning. The electrospinning solution contains 100 parts by weight of polyvinyl alcohol (PVA), 10-100 parts by weight of a modifier, 10-100 parts by weight of an ion exchanger, and 100-2,500 parts by weight of water. The modifier has a reactive group that can react with the hydroxyl groups of the PVA. The ion exchanger has a polar functional group that can form hydrogen bonds with the hydroxyl groups of the PVA, and has an anion group that can provide ion-exchange ability.
Taiwan Textile Research Institute | Date: 2015-08-14
The present disclosure relates to a polymer composite material and preparation method thereof. The polymer composite material includes a polyol and a phase changed cross-linking polymer. The phase changed cross-linking polymer has at least one ionic group, a hydrogen bond is formed between the ionic group and the hydroxyl group of the polyol, the polyol is encapsulated and dispersed within the phase changed cross-linking polymer, and a weight percentage of the polyol is 20-60%, a weight percentage of the phase changed cross-linking polymer is 40-80%.
Taiwan Textile Research Institute | Date: 2013-03-15
A method for fabricating an aligned graphene sheet-polymer composite is provided, which includes the steps below. A mixture is prepared with the dispersed graphene sheets in the polymer fluid. The graphene filament bundles substantially paralleled to each other are formed by a sequence of aligned graphene sheets in the polymer fluids when a field was applied. Finally, the mixture is solidified. An anisotropic index in a range of 1.00 to 2.00 is obtained in an aligned graphene sheet-polymer composite by calculating the ratio of the coefficient of thermal conductivity in a parallel direction and the one in perpendicular direction. The aligned graphene sheet-polymer composite is also provided.
Taiwan Textile Research Institute | Date: 2014-04-07
A dinitro compound I, a diamine compound II and polyimides are provided. The diamine compound II is a reduction product of the dinitro compound I. The polyimides using the diamine compound II as one of the monomers can increase the solubility of the polyimides in various organic solvents and make the color of the polyimides to be transparent and colorless.