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MicroFibrillated Cellulose (MFC) 제조를 위한 전처리 팽윤제의 종류와 농도에 따른 펄프의 고해 특성
안은별(Eun-Byeol Ahn),정진동(Jin-Dong Jung),정수은(Soo-Eune Jung),김강재(Kang-Jae Kim),엄태진(Tae-Jin Eom) 한국펄프·종이공학회 2015 펄프.종이기술 Vol.47 No.3
In this study, we evaluated properties of pulp treated with swelling agent and swelling concentration. We used swelling agent, such as NaOH, DMSO, urea. One of them, pulps treated with NaOH from 0 to 5% measured WRV, beating efficiency, crystallinity and aspect ratio. We identified that NaOH when freeness reaches 100mL CSF was the shortest, on the other hand, WRV didn’t change. Because NaOH is good beating efficiency, when pulp treated with various concentration of NaOH from 0 to 5%, pulp treated 1% NaOH was best beating efficiency. However, WRV, crystalline structure and crystallinity didn’t change. The more NaOH concentration increased, the more aspect ratio increased, but when NaOH concentration exceeds 3%, aspect ratio decreased. As a result, pulp treated with 1% NaOH was the greatest beating efficiency and WRV, chemical structure didn’t change.