섬유

Studies on Hydrolytic Action of Lactic Acid on Cotton Fibres.

  • 출판일2000.09
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 254
A study hydrolyzed cotton fibers using lactic acid treatments with varying times and acid concentrations of 1N, 2.5N, and 10N at the boil. The rate of hydrolysis was rapid shortly after exposure and slowed as the duration of exposure increased. X-ray diffraction and infrared spectroscopy showed that increases in the percentage of crystallinity accompanied weight loss. As acid concentration and treatment duration increased, tensile strength decreased. Electron microscopy revealed appreciable degradation and cracks in the fiber surface morphology. Lactic acid hydrolysis caused 1,4-beta-glycosicid bonds in the cellulose to split, which resulted in recrystallization and extension of the crystallite zones. 25 refs.
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