Abstract:
본 발명은 폴리아크릴로나이트릴(Polyacrylonitrile)과 망간전구체의 혼합 고분자 용액을 전기방사하여 나노섬유를 제조하고 이를 산화안정화, 탄화, 활성화한 나노사이즈의 포어를 갖는 흡착제에 관한 것이다. 보다 상세하게는 벤젠(Benzene), 톨루엔(Toluene), 크실렌(Xylene)등의 휘발성유기화합물(VOCs)을 효과적으로 흡착시킬 수 있는 섬유상 흡착제에 관한 것으로, 본 발명의 섬유상 흡착제는 평균직경이 200 ~ 400 nm이며, 비표면적이 853 내지 1300 m 2 /g, 미세세공의 직경인 약 5.6 내지 6.0 Å, 중대기공의 직경이 59 내지 91 Å이며, 종래 입상활성탄에 비하여 휘발성유기화합물의 흡착력이 매우 우수하다. 섬유상 흡착제, 휘발성유기화합물, 폴리아크릴로나이트릴, 망간전구체, 흡착, 혼합 전기방사
Abstract:
A fibrous adsorbent for VOC absorption using a fiber precursor composition and a manufacturing method thereof are provided to offer excellent adsorption capacity of volatile organic compounds rapidly. A manufacturing method of a fibrous adsorbent for VOC absorption using a fiber precursor composition includes the following steps of: producing a fiber precursor compound by adding a fibrous adsorbent for VOC absorption using a fiber precursor composition 0.1 ~ 5 weight% in polyacrylo nitrile resin dissolved liquid after dissolving polyacrylo nitrile resin in a solvent; producing the fiber by adding voltage of 20 ~ 30kV with the fiber precursor compound; stabilizing the fiber in air atmosphere for 0.5 ~ 3 hours; carbonizing the oxidized and stabilized fiber in the inert atmosphere or a vacuum state to temperature of 800 ~ 1000°C; and activating the carbonized fiber in the steam atmosphere.
Abstract:
본 발명은 공업용 플라스틱으로서 물성, 내열성, 성형성, 내후성, 내화학성 등의 면에서 우수한 성질을 갖는 폴리 부틸렌 테레프탈레이트(PBT)를 전기방사법을 이용하여 기존의 용융방사법에 비해 초극세의 부직포 웹을 제조할 수 있는 방법을 제공한다. 또한 섬유 제조시 방사용액에 각종 염료 및 안료를 혼합방사함으로써 방사단계에서 염색을 동시에 하여 유효이용 가치가 높은 선염 폴리부틸렌 테레프탈레이트 나노 섬유의 제조방법을 제공한다. 이와 같은 구성의 본 발명에 의하면, PBT 초극세사의 부직포를 방사단계에서 획득할 수 있어 고부가가치를 갖는 각종 복합재료의 필러 등으로 사용할 수 있으며, 방사단계에서의 염색에 의해 염착율과 염색 견뢰도를 높임과 동시에 염색 공정시 발생하는 환경부하를 획기적으로 저감시킬 수 있게 된다. 전기방사, 폴리부틸렌 테레프탈레이트 나노섬유, 염료, 안료
Abstract:
본 발명은 폴리아크릴로나이트릴(Polyacrylonitrile)과 셀룰로오스계수지의 혼합 고분자 용액을 전기방사하여 나노섬유를 제조하고 이를 산화안정화, 탄화, 활성화한 나노사이즈의 포어를 갖는 흡착제에 관한 것이다. 보다 상세하게는 벤젠(Benzene), 톨루엔(Toluene), 크실렌(Xylene)등의 휘발성유기화합물(VOCs)을 효과적으로 흡착시킬 수 있는 섬유상 흡착제에 관한 것으로, 평균직경이 150 ~ 500 nm이며, 비표면적이 1403 ~ 1566 ㎡/g, 세공의 직경이 6.0 ~ 6.8 Å, 중기공의 직경이 40 ~ 65Å으로 종래 입상활성탄에 비하여 휘발성유기화합물의 흡착력이 3배 이상 우수하다. 섬유상 흡착제, 휘발성유기화합물, 폴리아크릴로나이트릴, 셀룰로오스아세테이트, 흡착, 혼합 전기방사
Abstract:
A spinning syringe is provided to make it possible to manufacture a dual fiber when a nanofiber is manufactured through electro-spinning, by constituting the spinning syringe in a dual type so as to spin two types of material simultaneously. A spinning syringe is composed of a small syringe(10), a large syringe(20), and a piston(30). A nozzle(11) is inserted into a front side of the small syringe. A rear side of the small syringe is opened, and a first solution is put into the small syringe through the rear side of the small syringe. The small syringe is inserted into the large syringe through an opened rear side of the large syringe. A dual nozzle(23) has a first spinning groove and a second spinning groove at an outer circumference of the first spinning groove. The nozzle of the small syringe is contacted with the first groove of the dual nozzle. The dual nozzle is filled with a second solution. The piston is inserted into the large syringe, and a joining pole(32) is extended from a front side of the piston in a longitudinal direction of the piston. The joining pole is screw-joined to a small syringe pressing body(31), wherein the small syringe pressing body presses an inside of the small syringe to spin the first solution. The piston is screw-joined to a large syringe pressing body(33), wherein the large syringe pressing body presses the second solution within the large syringe.
Abstract:
A manufacturing method of a fibrous adsorbent for VOC absorption is provided to absorb volatile organic compounds effectively and easily such as Benzene, Toluene, Xylene etc. A manufacturing method of a fibrous adsorbent for VOC absorption includes the following steps of: producing a fiber precursor compound by dissolving polyacrylo nitrile resin and cellulose based resin with a weight ratio of 70 ~ 90:10 ~ 30; producing the fiber through electrospinning by adding voltage of 20 ~ 30kV to the fiber precursor compound; stabilizing the fiber for 0.5 ~ 3 hours; carbonizing the stabilized fiber in inert atmosphere or a vacuum condition at the temperature of 800 ~ 1000°C; and activating the carbonized fiber in the temperature of 800 ~ 1000°C.
Abstract:
A manufacturing method of dye-embedded PBT(Poly Buthylene Terephthalate) nano fibers by electro-spinning is provided to manufacture the ultra-fine non-woven cloth web compared with the conventional melting spinning manner. In the first process, the PBT polymer is manufactured through the esterification of terephthalic acid and buthandiol and the ester exchange manner of terephthalic methyl and buthandiol. In the second process, the PBT polymer is dissolved into the commercial solvent so that the electro spinning solution is manufactured. In the third process, the manufactured spinning solution is spun by the electro-spinning manner so that the web of the ultra-fine PBT fiber is manufactured. In the second process, the dye or pigment is dispersed and mixed into the spinning solution.