Abstract:
PURPOSE: An environmentally-friendly elastic paving material with heat insulation and slip prevention functions is provided to prevent the temperature rise of road surface and heat accumulated in the road. CONSTITUTION: An environmentally-friendly elastic paving material with heat insulation and slip prevention functions comprises a reinforcement layer, an elastic layer-A, and an environmental layer that are successively laminated on a road paved with concrete, ascon or permeable cement concrete. The reinforcement layer comprises skeleton former, a bonding activator, and a performance additive. The elastic layer-A is manufactured by mixing a main material and a hardener at a weight ratio of 1:0.05~0.3, where the main material comprises modified acrylic resin, a performance additive including elastic chip, and an admixture and the hardener comprises a hardening initiator, a hardening terminator, and a diluent. The environmental layer is manufactured by mixing a main material and a hardener at a weight ratio of 1:0.05~0.3, wherein the main material includes modified acrylic resin, a performance additive, and an admixture and the hardener comprises a hardening initiator, a hardening terminator, and a diluent.
Abstract:
PURPOSE: A stencil paving method being applied to a bicycle road is provided to be used for asphalt, concrete road or floor pavement because of excellent adhesive and a rapid curing time and maintain life without damage due to fatigue load and impact by pedestrian or vehicles. CONSTITUTION: A stencil paving method being applied to a bicycle road is as follows. The damaged parts of concrete or asphalt surface are corrected and pollution is removed. Swelling resin emulsion comprising antibacterial factors is stacked on the concrete or asphalt to form a reinforcing layer. A base layer is stacked on the reinforcing layer. A cover layer with antibacterial, solar protecting and slipping preventing functions is stacked on the base layer.
Abstract:
PURPOSE: An antibacterial agent containing Pt-Ag-CyD(Ag-swelling resin) nano alloy for paving is provided to basically block bacteria propagation and to enhance anti-corrosion and durability. CONSTITUTION: A Pt-Ag-CyD(Ag-swelling resin) antibacterial agent comprises: a core having nano alloy having platinum(Pt) and silver(Ag) in cyclodextrin(CyD); and a shell containing swelling resin and silver. The swelling resin is polyvinyl alcohol(PVA) or poly(n-vinylpyrrolidon)(PVP). The Pt-Ag-CyD(Ag-swelling resin) antibacterial agent is colloide or powder. A method for manufacturing the Pt-Ag-CyD(Ag-swelling resin) antibacterial agent comprise: a step of mixing platinum precursor, stabilizing agent, derivative solution, and silver precursor solution; a step of adding mixture solution and stirring; a step of adding organic solvent, stabilizer, and remover; a step of stabilizer and silver precursor solution, Pt-Ag-CyD nanoalloy, and dispersing agent; and a step of adding mixture solution.
Abstract:
PURPOSE: An environment-friendly pavement material using stencil is provided to prevent damage due to shock and fatigue load due to walk or the transit of vehicles and to improve adhesive force as floor packing material. CONSTITUTION: An environment-friendly pavement material using stencil comprises a base layer and a cover layer. The base layer is laminated on the upper part of cured asphalt or concrete. The cover layer is laminated on the upper part after curing the base layer. The base layer is composed of composition manufactured by mixing main material and hardener. The cover layer is composed of modified acryl resin and performance additive.
Abstract:
PURPOSE: An Ag-Cu-CyD(Zn-polymer) antimicrobial agent for paving road and bottom is provided to release active oxygen and to basically block bacteria breeding. CONSTITUTION: An Ag-Cu-CyD(Zn-polymer) antimicrobial agent comprises a shell layer formed of binder polymers and zinc nanoparticles; and a core in which Ag-Cu alloy nanoparticles are encapsulated in a hole inside cyclodextrin. The binder polymer is silicon polymers, acryl polymers, or urethane polymers. The Ag-Cu contains silver and copper in a ratio of 1 : 0.2-5 mole. The cyclodextrin(CyD) is alpha-cyclodextrin, beta-cyclodextrin, gamma-cyclodextrin, sulfoalkyl beta-cyclodextrin, hydroxy propoyl beta-cyclodextrin(HPCD), hydroxyl ethyl beta-cyclodextrin, 2-hydroxy propyl beta-cyclodextrin, ether beta-cyclodextrin, methyl beta-cyclodextrin, dimethyl beta-cyclodextrin, trimethyl beta-cyclodextrin, or sulfobutyl ether beta-cyclodextrin.
Abstract:
PURPOSE: A method of manufacturing a metal mold is provided to produce metal molds promptly as much as a user wants by applying rapid/vacuum molding technologies. CONSTITUTION: A couple of insert metal molds(90,90') are made by forming gates on the side of reverse metal molds, covering with a mold frame and injecting metal-mixed powder resin. Herein, the metal-mixed powder resin consists of an epoxy as a thermosetting resin and 7% of Ni-Fe powder having average density of 2000 mesh. The metal-mixed powder resin is injected into the mold frame and then hardened at a specific temperature. Finally, the insert metal molds(90,90') are obtained by removing the reverse metal molds.