| 학회 | 한국공업화학회 |
| 학술대회 | 2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 | 19권 1호 |
| 발표분야 | 펄프제지_포스터 |
| 제목 | Flocculation of Precipitated Calcium Carbonate by nanocellulose |
| 초록 | Recently, an intense research activity is ongoing within the field of cellulose nanofibrils (NFC) and cellulose microfibrils (MFC). The widespread interest can be explained by a few advantageous basic properties, i.e. high availability as a renewable material, high mechanical strength, large specific surface area and high aspect ratios, barrier properties, dimensional stability, biodegradability and biocompatibility (Eichhorn et al. 2010). This paper aims to use nanofibrillated cellulose as strength enhancement additives and examine the effect of flocculation and the retention of precipitated calcium carbonate (PCC),in order to find the way to achieve a higher filler content whilst maintaining the same paper strength. In this study, bleached kraft pulp from softwood were used as raw materials for the preparation of nanofibrillated cellulose(NFC).The flocculation of fillers was studied with a photometric dispersion analyser(PDA).We explored the effect these parameters had on the flocculation rate and final floc size. The stirring speed varied between 300, 900 rpm, and the flowrate through the tubing was set to 100 mL/min. And the dosage of NFC on PCC soild varied from 0.1% to 10%. Data was obtained as the RATIO of the RMS/DC signal over time. The RATIO signal is an indirect measure of the level of flocculation. |
| 저자 | 허밍, 원종명, 조병욱, 이승환 |
| 소속 | 강원대 |
| 키워드 | Nanofibrillar cellulose; Flocculation; PCC |
