| 학회 |
한국공업화학회 |
| 학술대회 |
2014년 봄 (04/30 ~ 05/02, 제주국제컨벤션센터) |
| 권호 |
18권 1호 |
| 발표분야 |
포스터-펄프.제지.피혁 |
| 제목 |
Carboxyl Charge Measurement of Cellulose Nanofibrils Isolated by TEMPO-Mediated Oxidation Using Conductometric Titration |
| 초록 |
This study discuss the measuring method of carboxyl charge on the surface of cellulose materials isolated by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation followed by three different ultrasonication times such as 20, 40 and 60 min. TEMPO-mediated oxidation provided two fractions of cellulose materials: cellulose micro-fibrils (CMFs) as sediment and cellulose nanofibrils (CNFs) as supernatant. The carboxyl surface charge of CNFs was greater than those of CMFs, but it did not change with the sonication time. These results indicates that the sonication treatment renders new carboxyl charge on the surface of CNFs. |
| 저자 |
박병대1, Nanang Masruchin2, Valerio Causin3
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| 소속 |
1경북대, 2Dept. of Wood and Paper Sci., 3Myungpook National Univ. |
| 키워드 |
cellulose nanofibril; carboxyl charge; conductometry
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| E-Mail |
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