Abstract:
A method for manufacturing a continuous mat by using an electro-spinning and a mat manufactured by the same are provided to arrange alternately nano fibers manufactured by two or more kinds of micro-molecule substances. The high voltage is applied to a nozzle block(2). The nozzle block includes two or more unit blocks vertically or horizontally arranged and has a C-shaped combination structure. The nozzle block also includes two or more spinning solution storage plates, so that the nozzles distribute and supply alternately two kinds of high polymer spinning solutions. The spinning solution storage plates are divided into the nozzle plate. A collector(3) is a cylindrical conductor and rotated by the nozzle block.
Abstract:
본 발명은 전기방사를 이용한 연속상 필라멘트의 제조방법 및 이로 제조된 연속상 필라멘트에 관한 것으로서, 고분자 방사용액 주탱크(1)내의 고분자 방사용액을 고전압이 걸려있는 노즐(2)들을 통해 고전압이 걸려 있으며 5m/초 이상의 회전선속도로 회전하는 원판상 전도체인 컬렉터(7)에 전기방사하여 상기 컬렉터(7)에 전기방사된 나노섬유(4)를 집적한 다음, 집속 로울러(11)를 이용하여 상기 컬렉터(7)로 부터 집적된 나노섬유(4)를 연속적인 필라멘트 형태로 제조한 다음, 이를 (ⅰ)트래버스(13)를 통해 캔버스(14)에 담거나, (ⅱ)계속해서 건조, 연신 및 권취하여 연속상 필라멘트를 구성하는 나노섬유들이 연속상 필라멘트의 축 방향으로 10ㅀ이하의 각도로 배열되어 있어 응력이 100MPa 이상인 연속상 필라멘트를 제조한다. 본 발명은 필라멘트 축 방향으로 나노섬유들이 잘 배열되어 연신성이 우수하며 나노섬유로 구성된 연속상 필라멘트를 연속공정으로 제조할 수 있고, 제조된 연속상 필라멘트는 물성이 뛰어나 인조피혁, 필터등의 다양한 산업분야 소재로 유용하다. 연속상, 전기방사, 필라멘트, 나노섬유, 회전선속도, 컬렉터, 연속공정
Abstract:
The present invention relates to a method for manufacturing nanofibers, comprising the steps of: supplying a spinning dope composed of one kind selected from polymer solution and polymer melt into a spinning tube that (i) has one kind of shape selected from a spherical shape, a conic shape, combined two conic shapes and combined four conic shapes, (ii) is connected to a motor by a connection bar, and (iii) has, on the surface of an inner part, one kind of formation selected from a groove and a protrusion; spinning the spinning dope, which has been supplied to the spinning tube, in the shape of nanofibers via centrifugal force by rotating the spinning tube with the rotation of a motor at 3,000 rpm or more; and accumulating the nanofibers spun from the spinning tube on a collector placed at the upper part of the spinning tube via centrifugal force generated by the rotation of the spinning tube and an air current generated by the rotation of a blade for air generation by rotating the blade for air generation, which is installed on one selected from the outer surface of the spinning tube and the connection bar, at 3,000 rpm or more together with the spinning tube. The present invention can manufacture nanofibers at high productivity (discharge amount) from not only polymer solution but also polymer melt as the viscosity of the polymer melt can be decreased without decomposing polymer via high shearing force using only a pure air current without static electricity. In addition, the present invention can evade operation danger as high voltage does not need to be applied to the collector etc.