| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자가공/복합재료/재활용 |
| 제목 |
Rheological Properties of Cellulose Nanocrystal Suspensions Dispersed in Anionic and Neutral Polymer Solution |
| 초록 |
Physical gelation and aggregation occur when rod-like cellulose nanocrystal (CNC) particles are dispersed in hydrophilic matrix due to their short-range van der Waals attraction. Furthermore, CNC aqueous suspensions show phase transition behavior with increasing particle concentration such as isotropic to nematic phase transition. CNC particles were dispersed in anionic polymer solution to reach the physical gelation at low CNC concentration because of the polymer adsorption via charge attraction between anionic polymer and CNC particles compared to neutral polymer. In this study, we used carboxymethyl cellulose (CMC) and polyethylene oxide (PEO) as anionic and neutral polymer solution, respectively and dynamic oscillatory shear tests were conducted to characterize microstructural differences by polymer adsorption and charge effect of polymer matrix. |
| 저자 |
김시윤, 현규
|
| 소속 |
부산대 |
| 키워드 |
Cellulose nanocrystal; Polymer adsorption; Rheology
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| E-Mail |
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