재생셀룰로오스 제조에 미치는 산화방지제의 영향에 관한 연구

• 영문명: The effect of antioxidants on the properties of regenerated cellulose
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 이 수(Soo Lee) 이상원(Sang Won Lee)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제27권 제3호, 378~384쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2009.09.30

영문 초록

Regenerated cellulose was prepared from Buckeye wood pulp V60 via dissolution in N-methylmorpholin N-oxide (NMMO) solvent system. The effect of antioxidants such as, n-propylgallate (PG), tris(nonylphenyl) phosphite (TRIS), ethylenediamine tetraacetic acid disodium salt (EDTA), and magnesium sulfate on the properties of regenerated cellulose was studied using X-ray diffraction, copper index calculation, and viscometry. Only addition of more than 0.01% of PG into NMMO solvent was effective to avoid the reduction of the degree of polymerization(DP) of regenerated cellulose during dissolution at 110oC. However, the early stage(within 0.5h of dissolution process) degradation of cellulose was not prevented eventhough up to 0.5% PG was appled to hot NMMO system. In addition, to recover the expensive NMMO after cellulose regenerating process, the washing filtrate was studied using simple techniques, such as refractive index, pH, and conductivity measurements. Through conductivity measurement result, 4-time of washing was enough to remove the NMMO completely from regenerated cellulose.

목차

1. 서 론

2. 실험 방법

3. 결과 및 고찰

4. 결 론

참고문헌

키워드

regenerated cellulose pulp EDTA viscometry NMMO conductivity