期刊
CELLULOSE
卷 25, 期 7, 页码 3853-3859出版社
SPRINGER
DOI: 10.1007/s10570-018-1859-3
关键词
Microfibrillated cellulose; Hemicellulose; Superheated steam; Electrospinning
资金
- Ministry of Higher Education Malaysia (MOHE)
- MyBrain 15 scholarship
In this study, oil palm mesocarp fiber (OPMF) was pretreated with (1) superheated steam (SHS) and (2) potassium hydroxide (KOH) to remove hemicellulose. Both SHS-OPMF and KOH-OPMF underwent delignification step to isolate the cellulose and dissolved in selected ionic liquid and its co-solvent before being electrospun to obtain microfibrillated cellulose (MFC). FE-SEM images showed that SHS-OPMF cellulose produced discontinuous MFC fiber with diameter ranging from 100 to 500 nm, of which 15.5% were in the range of 100-200 nm; while KOH-OPMF cellulose produced continuous MFC with sizes larger than 200 nm. The differences in fiber size and continuity of fiber produced were due to incomplete removal of hemicellulose from SHS-OPMF sample that inhibited fiber re-coalescence and resulted in interruption in fiber formation.
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