• Title/Summary/Keyword: Polymer Staple Fiber

Search Result 4, Processing Time 0.021 seconds

Improvement of mechanical properties of interior fabric using soluble micro-fiber and low melting PET (용출형 극세사와 저온 융착사를 이용한 인테리어 직물의 기계적 물성 개선)

  • Kwon, Yoon-Jung;Ahn, Young-Moo
    • Journal of Fashion Business
    • /
    • v.13 no.1
    • /
    • pp.82-90
    • /
    • 2009
  • This research was made to manufacture the fabric for interior uses by spinning a low melting mono 4 denier PET staple fiber with a soluble 1.4 denier fine PET fiber. The blended yarn has a thickness ranging from 10's to 14's, and the soluble PET fine fiber was dissolved to make a pore in the polymer. Thereby a snap property was decreased and a resilience property was improved to be suitable for a functional synthetic leather. In order to attain the optimum condition, a mechanical property according to fineness, and mixing ratio of low melting polymer, warp density, weft density and blending ratio, and a heat contraction ratio according to blending ratio were experimented. The warp density, 220 T/inch of fine denier PET and the weft density, 64 T/inch of thick denier PET were generated to 4/4 both twill weave fabric having constant tensile property and thickness.

Synthesis of ion Exchange Fiber Containing Amidoxime and Phosphoric Acid Groups and Its Uranium Adsorption Properties (아미드옥심기와 인산기가 함유된 이온 교환 섬유의 합성 및 우라늄 흡착 특성)

  • 황택성;박진원
    • Polymer(Korea)
    • /
    • v.27 no.3
    • /
    • pp.242-248
    • /
    • 2003
  • PP-g-(AN/Sty) was synthesized by grafting with acrylonitrile (AN) and styrene (Sty) onto PP staple fiber using an electron beam accelerator and followed by amidoximination and phosphorylation. Mole fraction of AN in the graft chain increased with the increase of the AN content in the monomer mixture. The highest AN grafting yield of 45% was obtained at a monomer ratio of 40 vol% AN/60 vol% Sty. Mole fraction of AN in the graft chain decreased with the increase of methanol amount used its solvent. As reaction temperature increased, the grafting yield of copolymer increased and reached equilibrium at 50$^{\circ}C$. Amount of amidoxime group in fibrous ion exchanger was increased as increasing amount of hydroxylamine, and the maximum content of amidoxime group was observed at 5.8 mmol/g with the 9 wt% hydroxylamine concentration. Content of phosphorous group in fibrous ion exchanger increased up to 0.5 N phosphoric acid concentration, and then leveled off. The adsorption ability of the copolymer for uranyl ion by the chelating adsorbents was in the following order : bifunctional PP-g-(AN/sty) > amidoximated PP-g-(AN/Sty) > phosphorylated PP-g-(AN/Sty).

Synthesis of Aminated PP-g-styrene Fibrous Ion-Exchanger for Separation of Boron from Ground-Water (지하수로부터 붕소이온 분리를 위한 아민화 PP-g-styrene 이온교환체 섬유의 합성과 붕소 음이온 흡착에 관한 연구)

  • Hwang, Taek-Sung;Lee, Jin-Hyok;Lee, Myun-Joo
    • Polymer(Korea)
    • /
    • v.25 no.4
    • /
    • pp.451-459
    • /
    • 2001
  • Fabric ion-exchanger, aminated PP-g-styrene was synthesized with styrene monomer onto PP staple fiber by pre-irradiational grafting with E-beam and subsequent chloromethylation and amination. Degree of grafting was increased with increasing the styrene monomer concentration and the highest degree of grafting was obtained 118% at a monomer concentration of 80% styrene. Optimum condition of Mohr's salt and sulphuric acid were 1.0 ${\times}\;10^{-3}$ M and 0.1 M. Amount of amination was increased with increasing degree of grafting. Swelling ratio of aminated PP-g styrene was higher than that of trunk polymer. Ion-exchange capacity was 6.7 meq/g, which was three times greater than commercial ion-exchanger. Optimum condition of baron ion adsorption was pH 4 and amount of adsorption were increased with increasing the amount of amination.

  • PDF