Abstract:
PURPOSE: A multi-axis geocomposite and a method for manufacturing the same are provided to predict exterior change as well mechanical property change of the multi-axis geocomposite. CONSTITUTION: A multi-axis geocomposite is fabricated by stitching a woven fabric layer(30) which are alternately arranged with a non-woven fabric layer at angles of 0, 90, and +/- theta degrees. The non-woven fabric layer is fabricated by integrating a first non-woven fabric layer(10) of a melt blown method and a second non-woven fabric(20) of a needle punching method.
Abstract:
PURPOSE: A method for fabricating organic nanocomposite fiber of high strength sea-island type is provided to optimize spinning nozzle and spinning speed in case of welding and spinning and to use the fiber as a reinforcing material. CONSTITUTION: An organic nanocomposite fiber of high strength sea-island has 30 or more island ingredients made of thermoplastic polymer resin materials of less than 500 nm of fiber diameter. The nanocomposite fiber contains 5-95 wt% of island ingredients. The nanocomposite fiber has circular cross section or multi-lobal cross-section selected from the group consisting of triangle, square, polygonal, ellipse, - shape, Y shape, + shape, # shape, and * shape. A method for fabricating the nanocomposite fiber comprises: a step of welding organic polymers of thermoplastic polymer resin and inputting into welding composite spinning machine of a sea-island type; and a step of spinning the island ingredients at 500-3,000 m/min of spinning rate.
Abstract:
A material using plasma surface treatment and an oil/water separating filter comprising the oil/water separating material are provided to have excellent separating properties of separating water and oil, excellent durability properties and to be used for diesel engine, gasoline engine and so on. An oil/water separating material includes a plasma coating layer which has a surface tension of 3.0x10^-2 J/m^2 to 7.2x10^-2 J/m^2, and which is formed on a surface of a fabric comprising a polymer fiber. The plasma coating layer is formed by performing a plasma vapor deposition process of a mixed gas comprising a fluorocarbon gas with 1 to 3 carbon atoms and hydrogen carbon gas with 1 to 3 carbon atoms at a volume ratio of 50:50 to 90:10. The polymer fiber is selected from the group consisting of a polyamide fiber, and a polyester fiber. The fabric is a woven or knitted fabric including a polymer fiber with an average diameter of 5 to 200 mum. The polymer fiber has depressions and prominences formed thereon. The oil/water separating material has a contact angle relative to water of 120 degrees or more.
Abstract translation:使用等离子体表面处理的材料和包含油/水分离材料的油/水分离过滤器被提供以具有优异的分离水和油的分离性能,优异的耐久性,并且用于柴油发动机,汽油发动机等。 油/水分离材料包括具有3.0×10 ^ -2J / m 2至7.2×10 -2 -2 / m 2的表面张力的等离子体涂覆层,并且其形成在织物的表面上,其包含 聚合物纤维。 等离子体涂覆层是通过以含有1至3个碳原子的碳氟化合物气体和1至3个碳原子的碳氢气体积比为50:50至90:10的混合气体进行等离子体气相沉积工艺而形成的。 聚合物纤维选自聚酰胺纤维和聚酯纤维。 织物是包含平均直径为5至200μm的聚合物纤维的机织或针织物。 聚合物纤维在其上形成有凹陷和凸起。 油/水分离材料相对于水的接触角为120度以上。