TY - JOUR
T1 - Structural and mechanical properties of cellulose composites made of isolated cellulose nanofibers and poly(vinyl alcohol)
AU - Oishi, Yukako
AU - Nakaya, Masaki
AU - Matsui, Eitaro
AU - Hotta, Atsushi
N1 - Funding Information:
This work was supported in part by a Grant-in-Aid for Scientific Research (B) from the Japan Society for the Promotion of Science (JSPS: “KAKENHI”) (No. 23360294 to A.H.) and a Grant-in-Aid for Scientific Research for Challenging Exploratory Research (No. 24656395 to A.H.). We are deeply grateful to T. Ouchi, R. Tsuji, and R. Akama for fruitful discussions.
Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/6
Y1 - 2015/6
N2 - A composite of cellulose-nanofibers (Cel-F)/polyvinyl alcohol (PVA) was made through a developed water-jet nano-isolation process called the Star Burst processing (SB). The structural and the mechanical properties of the pure Cel-F and the Cel-F/PVA composites were analyzed for comparison. The microstructural analyses revealed the step-by-step nano-isolation procedures of the SB processing, eventually constructing nanofibers with the minimum diameter of ∼23 nm. It was also found that the crystallinity of Cel-F was rapidly increased by 14% at the early stage of the SB process, subsequently becoming almost constant, irrespective of the number of the SB treatments. Additionally, Cel-F were homogenously dispersed in PVA matrix after 40 SB treatments. Young's modulus of the resulting composite was increased by 48%. The results were in good agreement with the outcome of the short-fiber composite theory, indicating a highly potential use of the SB-processed cellulose nanofibers as new reinforcement materials.
AB - A composite of cellulose-nanofibers (Cel-F)/polyvinyl alcohol (PVA) was made through a developed water-jet nano-isolation process called the Star Burst processing (SB). The structural and the mechanical properties of the pure Cel-F and the Cel-F/PVA composites were analyzed for comparison. The microstructural analyses revealed the step-by-step nano-isolation procedures of the SB processing, eventually constructing nanofibers with the minimum diameter of ∼23 nm. It was also found that the crystallinity of Cel-F was rapidly increased by 14% at the early stage of the SB process, subsequently becoming almost constant, irrespective of the number of the SB treatments. Additionally, Cel-F were homogenously dispersed in PVA matrix after 40 SB treatments. Young's modulus of the resulting composite was increased by 48%. The results were in good agreement with the outcome of the short-fiber composite theory, indicating a highly potential use of the SB-processed cellulose nanofibers as new reinforcement materials.
KW - A. Polymer fiber
KW - A. Polymer-matrix composites (PMCs)
KW - B. Mechanical properties
KW - B. Microstructures
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U2 - 10.1016/j.compositesa.2015.02.026
DO - 10.1016/j.compositesa.2015.02.026
M3 - Article
AN - SCOPUS:84925114391
SN - 1359-835X
VL - 73
SP - 72
EP - 79
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
ER -