Abstract:
PURPOSE: A manufacturing method of a highly efficient regenerated board using waste parts is provided to increase a strength of the board, but to reduce a whole weight thereof as well as a production cost. CONSTITUTION: The manufacturing method of a regenerated board comprises the steps of; crushing waste carpet into a size of 5 to 10 mm by using a high speed crusher of 1000 to 1500rpm; repeatedly crushing the pieces by melting them partially; and adding rubber powder, glass fiber and plastic solid to the crushed pieces before injecting the mixture into a calendering machine to manufacture regenerated materials.
Abstract:
PURPOSE: Provided is a method for modifying the surface of waste rubber by using a corona discharging treatment, by which the surface of the waste rubber is activated and the waste rubber has an excellent mixing-ability with other material, therefore, the recycled rubber is obtained by mixing the waste rubber with pure rubber. CONSTITUTION: The surface of the waste rubber is modified by moving the waste rubber powder at a uniform velocity of 10-15cm/sec and simultaneously performing the corona discharging treatment with an output of 10-12KV for 300-400 seconds. And the recycled rubber is produced by mixing 100pts.wt. of the pure rubber with 10phr pts.wt. of the surface-modified waste rubber powder having a particle size of 10-400 micrometer.
Abstract:
본 발명은 폐카페트를 이용한 재생재료의 제조방법에 관한 것으로서, 더욱 상세하게는 카페트 스크랩을 분쇄하고, 고속재료 혼합기 및 텀블믹서(tumble mixer)를 이용하여 혼화한 후 이축압출기로 압출함으로써 압출공정을 단축시켜 원가를 절감하고 공정수를 감소시키면서 카페트 스크랩을 분쇄상태로 그대로 사용할 수 있도록 하는 폐카페트 스크랩을 이용한 재생재료의 제조방법에 관한 것이다.
Abstract:
PURPOSE: A bio-degradable acrylonitrile-butadiene-styrene composition is provided to maintain flexibility, chemical resistance and heat resistance of an acrylonitrile-butadiene-styrene resin and to improve mechanical properties of interior materials of vehicles, especially, impact strength. CONSTITUTION: A bio-degradable acrylonitrile-butadiene-styrene composition comprises: a polymer mixed resin consisting of an acrylonitrile-butadiene-styrene composition resin and single or two kinds of bio-degradable copolymer resins selected from polylactic acid and polyhydroxy butyrate; and poIycaprolactone. The polymer mixed resin includes 50~90 weight% of the acrylonitrile-butadiene-styrene resin and 10~50 weight% of a biodegradable polymer resin.
Abstract:
PURPOSE: A refrigerant injection unit for a refrigerant treatment facility is provided to increase the evaporating speed of refrigerant gas and accurately measure the amount of refrigerant by employing a pressure-reducing unit. CONSTITUTION: A refrigerant injection unit for a refrigerant treatment facility comprises a refrigerant container(100), a pressure-reducing unit(110), a flow meter, an oil filter(130), a mist filter(131), a drain box(120), and a sampling port(123). The pressure-reducing unit is connected to the refrigerant container and evaporates refrigerant to activate the evaporation of refrigerant. The flow meter measures the flow rate of the refrigerant depressurized by the pressure-reducing unit. The oil filter and the mist filter eliminate the oil and mist contained in the refrigerant depressurized by the pressure-reducing unit. The drain box stores the oil and the mist filtered through the oil filter and the mist filter. The sampling port is formed in order to analyze the purity of the refrigerant.
Abstract:
본 발명은 재활용 폴리에틸렌테레프탈레이트(PET) 복합소재 및 이의 제조방법에 관한 것으로서, 재활용 폴리에틸렌테레프탈레이트 칩을 제조하고, 상기 폴리에틸렌테레프탈레이트 칩과 유리섬유, 커플링제, 쇄연장제, 탈크 및 유기핵제 중에서 선택된 단독 또는 2 종 이상의 핵제, 및 충격보강제를 포함하는 재활용 PET 복합소재 및 이의 제조방법에 관한 것이다. 폴리에틸렌테레프탈레이트, 플레이크, 칩, 유리섬유
Abstract:
Provided is a resin composition using a waste nylon resin, which has excellent heat resistance and mechanical strength, realizes excellent molded articles, and is useful for the production of an end tank of a car radiator. The resin composition using a waste nylon resin comprises: 50-80 wt% of crushed waste nylon; 10-30 wt% of a nylon resin; 4-20 wt% of glass fiber; 5-20 wt% of inorganic fillers; and 1-5 wt% of at least one additive selected from the group consisting of a dispersant, an anti-oxidant, a flame retardant, a heat stabilizer and a ceramic UV stabilizer. The nylon resin is at least one resin selected from nylon 6, nylon 66 and other modified polyamide resins.
Abstract:
PURPOSE: A recycling method and apparatus comprising a coating-removing method and apparatus of a waste bumper cover are provided, which save a coating-removing solution substantially and shorten the removing efficiency and time. CONSTITUTION: The apparatus of a waste bumper cover for car includes a medium or high speed grinder to grind the waste bumper cover to a size of 5 to 10 centimeters; a body of revolution(20) with a rotary wing(10) rotating in the opposite direction therein to release a coating film of the grinded material using the friction force through a rotation; a vessel(30) to flow the grinded material and the coating material in a flow rate using the density difference; a methylene chloride storage tank(40), a methylene chloride fraction/recovery tank(50) for supplying and cycling a mixture solution of water/methylene chloride into the vessel(30), and each pipe(60); and a means for washing, drying and extruding the coating-released ground material to produce the recycling materials.