TY - JOUR
T1 - Preparation of stable biopolymer composite suspension with metal/metal-oxide nanoparticles
AU - Shi, Shih Chen
AU - Yang, Jason Hsiao Chun
N1 - Funding Information:
The authors gratefully acknowledge the financial supports for this project from the Ministry of Science and Technology in Taiwan under Grant 106-2221-E-006-092-MY3.
Publisher Copyright:
© 2020 World Scientific Publishing Company.
PY - 2020/3/30
Y1 - 2020/3/30
N2 - Hydroxypropyl methylcellulose (HPMC) is a kind of biopolymer that is biodegradable, environmentally friendly and possesses exceptional mechanical and tribological properties. Therefore, it could be used as a suitable alternative to plastic. However, HPMC deforms easily when subjected to loads, causing higher real contact area and adhesive force between HPMC and grinding counter. Therefore, HPMC films are easily damaged because of adhesive wear, which negatively affects wear resistance. Hence, nanoparticles (NPs) of Al, Cu, Al2O3 and CuO have been used as fillers to increase the wear resistance of the HPMC composite films. The uniform dispersion of NPs in the suspension is the most important factor, which is greatly related to the wear resistance after film formation. Nanosuspensions with various dispersant concentrations were prepared, and mixed with the HPMC solution to prepare composite solutions and composite films. The results showed that Span 80 could provide steric stabilization, and that it dispersed the NPs effectively in suspension. After mixing the suspension with the HPMC solution, the solution became more stable.
AB - Hydroxypropyl methylcellulose (HPMC) is a kind of biopolymer that is biodegradable, environmentally friendly and possesses exceptional mechanical and tribological properties. Therefore, it could be used as a suitable alternative to plastic. However, HPMC deforms easily when subjected to loads, causing higher real contact area and adhesive force between HPMC and grinding counter. Therefore, HPMC films are easily damaged because of adhesive wear, which negatively affects wear resistance. Hence, nanoparticles (NPs) of Al, Cu, Al2O3 and CuO have been used as fillers to increase the wear resistance of the HPMC composite films. The uniform dispersion of NPs in the suspension is the most important factor, which is greatly related to the wear resistance after film formation. Nanosuspensions with various dispersant concentrations were prepared, and mixed with the HPMC solution to prepare composite solutions and composite films. The results showed that Span 80 could provide steric stabilization, and that it dispersed the NPs effectively in suspension. After mixing the suspension with the HPMC solution, the solution became more stable.
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U2 - 10.1142/S021798492040028X
DO - 10.1142/S021798492040028X
M3 - Article
AN - SCOPUS:85082560388
VL - 34
JO - Modern Physics Letters B
JF - Modern Physics Letters B
SN - 0217-9849
IS - 7-9
M1 - 2040028
ER -