Thermoplastic composites of polyamide-12 reinforced by cellulose nanofibers with cationic surface modification

2014 ◽  
Vol 131 (20) ◽  
pp. n/a-n/a ◽  
Author(s):  
Takeshi Semba ◽  
Akihiro Ito ◽  
Kazuo Kitagawa ◽  
Takeshi Nakatani ◽  
Hiroyuki Yano ◽  
...  

2007 ◽  
Vol 8 (6) ◽  
pp. 1973-1978 ◽  
Author(s):  
Shinsuke Ifuku ◽  
Masaya Nogi ◽  
Kentaro Abe ◽  
Keishin Handa ◽  
Fumiaki Nakatsubo ◽  
...  


2018 ◽  
Vol 15 (7) ◽  
pp. 1800032 ◽  
Author(s):  
Alaa Almansoori ◽  
Robert Masters ◽  
Kerry Abrams ◽  
Jan Schäfer ◽  
Torsten Gerling ◽  
...  


Author(s):  
Akihiro Sato ◽  
Daisuke Kabusaki ◽  
Hiroaki Okumura ◽  
Takeshi Nakatani ◽  
Fumiaki Nakatsubo ◽  
...  


2019 ◽  
Vol 21 (17) ◽  
pp. 4619-4624 ◽  
Author(s):  
Xianpeng Yang ◽  
Ting-Hsuan Ku ◽  
Subir K. Biswas ◽  
Hiroyuki Yano ◽  
Kentaro Abe

Polymers were grafted from the surfaces of cellulose nanofibers by UV irradiation with an organic solvent-free process.



Author(s):  
K. D. H. N. Kahavita ◽  
A. M. P. B. Samarasekara ◽  
D.A.S. Amarasinghe ◽  
L. Karunanayake


Langmuir ◽  
2002 ◽  
Vol 18 (26) ◽  
pp. 10411-10420 ◽  
Author(s):  
F. Dreux ◽  
S. Marais ◽  
F. Poncin-Epaillard ◽  
M. Métayer ◽  
M. Labbé




MRS Advances ◽  
2019 ◽  
Vol 4 (07) ◽  
pp. 385-391
Author(s):  
Hiroki Ichimura ◽  
Naruki Kurokawa ◽  
Atsushi Hotta

AbstractPoly(ε-caprolactone) (PCL) is one of the leading biocompatible and biodegradable polymers. However, the mechanical property of PCL is relatively poor as compared with that of polyolefins, which has limited the active applications of PCL as an industrial material. In this study, to enhance the mechanical property of PCL, cellulose nanofibers (C-NF) with high mechanical property, were employed as reinforcement materials for PCL. The C-NF were fabricated via the electrospinning of cellulose acetate (CA) followed by the subsequent saponification of the CA nanofibers. For the enhancement of the mechanical property of the PCL composite, the compatibility of C-NF and PCL was investigated: the surface modification of the C-NF was introduced by the ring-opening polymerization of the ε-caprolactone on the C-NF surface (C-NF-g-PCL). The polymerization was confirmed by the Fourier transform infrared (FTIR) spectroscopy. Tensile testing was performed to examine the mechanical properties of the C-NF/PCL and the C-NF-g-PCL/PCL. At the fiber concentration of 10 wt%, the Young’s modulus of PCL compounded with neat C-NF increased by 85% as compared with that of pure PCL, while, compounded with C-NF-g-PCL, the increase was 114%. The fracture surface of the composites was analyzed by scanning electron microscopy (SEM). From the SEM images, it was confirmed that the interfacial compatibility between PCL and C-NF was improved by the surface modification. The results demonstrated that the effective surface modification of C-NF contributed to the enhancement of the mechanical property of PCL.



Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 139 ◽  
Author(s):  
Chenning Zhang ◽  
Tetsuo Uchikoshi ◽  
Izumi Ichinose ◽  
Lihong Liu

Cellulose nanofibers were modified by TiO2 gel layer (~25 nm in thickness) via hydrolysis reaction on the surface of the cellulose nanofibers. After the TiO2 coating, the surface charge of the nanofiber dramatically changed from negative to positive. A high efficiency (~100%) of capturing negatively charged Au nanoparticles (5 nm) was successfully obtained by effectively utilizing the electrostatic interaction of surface charge between the TiO2-coated cellulose nanofibers and Au nanoparticles. Therefore, this technique of surface modification will be potentially used in improving filtration efficiency for membrane applications.



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