| 학회 | 한국공업화학회 |
| 학술대회 | 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 | 21권 1호 |
| 발표분야 | (펄프제지) 펄프제지산업에서 기능성소재의 기술 동향 |
| 제목 | Fundamental mechanisms of drying hydrophilic polymers such as cellulose fibers |
| 초록 | Hydrophilic polymers are characterized by their capability to form hydrogen bonds with water molecules. Cellulose fibers are well-known examples of hydrophilic polymers, and are porous with an internal surfac area of 1000 m2/g –pulp prior to drying. During drying, however, they lose most of their internal surface area and become essentially non-porous with a surface area of only 1 m2/g-pulp. Once dry, the lost pores will not fully recover to their original state when immersed in water. Nano- or micro-cellulose particles are characterized by their small sizes ranging from submicron- to micron-sizes when they are produced from cellulose fibers. Their surface area is estimated to be approximately 100 m2/g in an aqueous solution. These fine particles are agglomerated during drying, resulting in the generation of large particles of several hundred microns. Once they are agglomerated, mechanical means such as grinding should be applied to reduce the size of the particles. |
| 저자 | 고영찬, 김형진 |
| 소속 | 국민대 |
| 키워드 | hydrophilic polymers; cellulose fibers; drying |
