TEAH-Urea 용제 및 드롭핑 기술에 의한 셀룰로오스 비즈 제조 : 주사기 바늘 내경의 영향

HwBKP was dissolved with TEAH (tetraethylammonium hydroxide)-urea solvent at room temperature and cellulose beads were prepared by the dropping technology. Cellulose beads within the size range of 800 µm-2000 µm in diameter were prepared by varying the size of the inner diameter of a syringe needle. It was found that there was a lower limit in average particle size to prepare cellulose beads by a dropping technique. Cellulose structure was varied to cellulose II and crystallinity of cellulose was decreased during the dissolution of cellulose fiber with TEAH and urea and regeneration in acetic acid. Cellulose beads exhibited a lower onset temperature for thermal decomposition than HwBKP. KCI Citation Count: 0