A comparative study of nanofibrillated cellulose and microcrystalline cellulose as reinforcements in all-cellulose composites
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Author list: Tanpichai S.
Publication year: 2018
Journal: Journal of Metals, Materials and Minerals (0857-6149)
Volume number: 28
Issue number: 1
Start page: 10
End page: 15
Number of pages: 6
ISSN: 0857-6149
Languages: English-Great Britain (EN-GB)
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Abstract
The reinforcing abilities of nanofibrillated cellulose (NFC) and microcrystalline cellulose (MCC)in composites were investigated and compared. All-cellulose composites wereprepared using the dissolved MCC as the matrix, and NFC and MCC were introduced asthe reinforcing phase. With the addition of MCC, tensile strength of the compositesdecreased; on the other hand, the higher tensile strength of the composites with NFC wasfound with increasing a NFC content. Strong interfacial interaction between the matrix and reinforcing phase could be obtained at a low content of the reinforcement was observed. At a higher content of the reinforcement the fiber pull-out was found from the fracture surface of the composites after tensile deformation. The reinforcing abilities of NFC and MCC were also confirmed by the comparison between values of the Young's moduli of the composites obtained from the experiments and calculations using the rule of mixtures equation. Fromthese results it could be summarized that NFC had the higher reinforcing ability than MCC. ฉ 2018 Chulalognkorn University.
Keywords
Cellulose composites, Mechanical properties films, Rule of mixtures
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