Effect of Mechanochemical Treatment of Cellulose on Characteristics of Nanocellulose Films

Author(s):  
V. A. Barbash ◽  
O. V. Yaschenko ◽  
S. V. Alushkin ◽  
A. S. Kondratyuk ◽  
O. Yu. Posudievsky ◽  
...  
2013 ◽  
Vol 78 (4) ◽  
pp. 579-590 ◽  
Author(s):  
Aleksandra Mitrovic ◽  
Miodrag Zdujic

Mechanochemical treatment of Serbian kaolin clay was carried out in a planetary ball mill using two different milling media, hardened steel or zirconia vials and balls. The samples obtained with various milling times were characterized by the particle size laser diffraction (PSLD), X-ray diffraction (XRD), differential scanning calorimetry/thermogravimetry (DTA/TGA) and Fourier-transform infrared (FTIR) analyses. Mechanochemical treatment induced amorphization of the kaolinite phase accompanied by dehydroxylation. It was found that for the given milling parameters, amorphization mainly took place in the milling period up to 15 min, and was completed after about 30 min of milling for both milling media used. The pozzolanic activities were determined by the Chapelle method. Milling in the hardened steel milling medium had no significant influence on pozzolanic activity, even though there was accumulated iron contamination. For both milling media, pozzolanic activity of 0.79 was obtained for the samples milled for 15 min and it remained almost unchanged with prolonged milling. The determined pozzolanic activity values are close to these of commercial metakaolinite or metakaolinite obtained by the calcination of the same clay, therefore, indicating possibility for obtaining high reactive pozzolana by mechanochemical treatment of Serbian kaoline clay.


2016 ◽  
Vol 47 (6) ◽  
pp. 575-588 ◽  
Author(s):  
I. V. Kolbanev ◽  
E. N. Degtyarev ◽  
A. N. Streletskii ◽  
A. I. Kokorin

2014 ◽  
Vol 126 (4) ◽  
pp. 912-915
Author(s):  
Z. Cherkezova-Zheleva ◽  
K. Zaharieva ◽  
K. Buchkov ◽  
B. Blagoev ◽  
I. Mitov

2006 ◽  
Vol 84 (4) ◽  
pp. 309-312 ◽  
Author(s):  
J. Kano ◽  
Q. Zhang ◽  
F. Saito ◽  
M. Baron ◽  
A. Nzihou

2002 ◽  
Vol 97 (1-3) ◽  
pp. 179-203 ◽  
Author(s):  
V Roucoules ◽  
F Gaillard ◽  
T.G Mathia ◽  
P Lanteri

Author(s):  
E.Yu. KRUPENYA ◽  
A.A. CHEREPENKO ◽  
E.M. MINAEVA ◽  
A.V. SIMUSHKIN ◽  
L.V. MORGUNOV

The article is devoted to the mechanical activation of the metal surface in vibrating machines. Various cases of surface activation are considered. A combined method of processing is considered, in particular, vibration mechanochemical treatment (VIMHO) and vibration mechanochemical coatings (VIMHP).


CrystEngComm ◽  
2021 ◽  
Author(s):  
Richard Fernando D'Vries ◽  
Valentina Renza-Diaz ◽  
Martin emilio Gonzalez ◽  
Kriss Dayhana Pantoja

Quercetin and curcumin are well-known natural antioxidant molecules used to prevent the malignant effect caused by free radicals on biological systems. This work addressed the creation of eutectic mixtures from...


2008 ◽  
Vol 34 (5) ◽  
pp. 539-544 ◽  
Author(s):  
Masayuki Shintani ◽  
Yuta Naito ◽  
Shingo Yamada ◽  
Yugo Nomura ◽  
Sheng Zhou ◽  
...  

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