Abstract:
Disclosed are a hybrid tire cord, which can be easily manufactured and has more uniform physical properties, and improved strength and fatigue resistance, and a method for manufacturing the same. The hybrid tire cord includes a nylon primarily twisted yarn and an aramid primarily twisted yarn, wherein the nylon primarily twisted yarn and the aramid primarily twisted yarn are secondarily twisted together, and after untwisting of the secondary twisting of the hybrid tire cord having a predetermined length, a length of the aramid primarily twisted yarn is 1.005 to 1.025 times a length of the nylon primarily twisted yarn.
Abstract:
Disclosed are a hollow fiber membrane module, a filtration apparatus based on the same, and a method for manufacturing the filtration apparatus. The hollow fiber membrane module includes two headers respectively provided with a permeate collecting unit therein, wherein each of the headers has grooves on its two sides, the grooves being extended in a length direction of the hollow fiber membrane. Since one slide rod can simultaneously be inserted into grooves of two adjacent hollow fiber membrane modules, the hollow fiber membrane modules can mutually serve as guides for insertion/ejection thereof. Also, since the grooves formed on the header can serve as insertion holes into which a clamp is inserted, the clamp can be used for coupling between the hollow fiber membrane module and another element and reinforcement of the coupling.
Abstract:
Provided are a polyester film that is usable for protecting a surface of a metal plate of a construction material, a decorative material, an interior material, an electronic product, etc., and a manufacturing method therefor, and a polyester mold product using the same and a manufacturing method therefor, wherein the polyester film has low orientation and low modulus to have excellent moldability.
Abstract:
This invention relates to a polyimide and a film using the same and, more particularly, to a polyimide, which can exhibit a low dielectric constant while retaining the superior properties thereof, and can thus be utilized as electronic materials such as protective materials or insulating materials for liquid crystal displays or semiconductors, and optical communication materials such as optical waveguide materials, and to a polyimide film including the same.
Abstract:
Disclosed is a smart bag having a function of notifying a reception of a mobile communication terminal, the smart bag including: a notifying device including a label attached onto one surface of an external side of the smart bag and a backlight combined with one surface of the label; a Bluetooth chip, which is electrically connected with the notifying device and pairs the mobile communication terminal and the notifying device; and a near field communication (NFC) chip, which is attached to one surface of an inner side of the smart bag and activates a Bluetooth function of the mobile communication terminal, in which the Bluetooth chip receives a signal from the mobile communication terminal, so that the backlight is turned on, so that it is possible to confirm a received signal of the mobile communication terminal even outside of the smart bag.
Abstract:
This invention relates to a lyocell material for a cigarette filter and a method of manufacturing the same, wherein the lyocell material which is biodegradable and eco-friendly can be manufactured by crimping lyocell multifilaments to thus obtain a crimped tow.
Abstract:
Disclosed are a high strength fiber composite material, which satisfies bulletproof performance to the level as required in the industry and has greatly improved lightweight properties, a manufacturing method thereof, and a helmet manufactured by using the same. The high strength fiber composite material includes: a high strength fiber material; and a resin film laminated on one surface of the high strength fiber material, wherein an amount of the resin film is 10 to 18 wt. % to a total weight of the high strength fiber material and the resin film, the resin film includes 20 to 70 wt. % of phenolic resin, 20 to 70 wt. % of polyvinyl butyral (PVB) resin, and the polyvinyl butyral (PVB) resin has a molecular weight of 30,000 to 120,000.
Abstract:
The present invention provides a polyimide film which is both outstandingly transparent and highly heat resistance, and which can be usefully employed as a transparent electrically conductive film, a TFT substrate, a flexible printed circuit substrate, and the like.
Abstract:
Provided are a polymer electrolyte membrane used in fuel cells, and a method for producing the same, the method including a step of filling a crosslinkable ion conductor in the pores of a porous nanoweb support; and a step of crosslinking the ion conductor filled in the pores of the porous nanoweb support. The method for producing a polymer electrolyte membrane uses a relatively smaller amount of an organic solvent, can ameliorate defects of the support caused by solvent evaporation, and can enhance the impregnability of the ion conductor to the support and the convenience of the process.
Abstract:
Disclosed are a method for manufacturing a drawn fiber, which is suitable for manufacturing a poly(ethylene terephthalate) drawn fiber showing superior strength and dimensional stability and having a high fineness of 2000 denier or more without breakage or reduction in physical properties during the manufacturing process, and a poly(ethylene terephthalate) drawn fiber and a tire-cord obtained therefrom.