The density and crystallinity properties of PPO-silica mixed-matrix membranes produced via the in situ sol-gel method for H2/CO2 separation. II: Effect of thermal annealing treatment

2015 ◽  
Vol 104 ◽  
pp. 319-332 ◽  
Author(s):  
Guo-Liang Zhuang ◽  
Ming-Yen Wey ◽  
Hui-Hsin Tseng
2018 ◽  
Vol 12 (2) ◽  
pp. 180-185 ◽  
Author(s):  
S. M. Li ◽  
T. W. Xu ◽  
Z. X. Jia ◽  
B. C. Zhong ◽  
Y. F. Luo ◽  
...  

2013 ◽  
Vol 445 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Bin Zhu ◽  
Chengtao Yang ◽  
Quntiao Xie ◽  
Yalei Zhang ◽  
Ping Li

2006 ◽  
Vol 89 (11) ◽  
pp. 3536-3540 ◽  
Author(s):  
Hiroshi Koyama ◽  
Masayuki Fujimoto ◽  
Tomoya Ohno ◽  
Hisao Suzuki ◽  
Junzo Tanaka

2015 ◽  
Vol 213 ◽  
pp. 1-7 ◽  
Author(s):  
Fei Tong ◽  
Jie Gong ◽  
Ming Li ◽  
Changfeng Zeng ◽  
Lixiong Zhang

2021 ◽  
Vol 891 ◽  
pp. 37-42
Author(s):  
Sheila Shahidi ◽  
Hakimeh Mohammadbagherloo ◽  
Seyedmohammad Elahi ◽  
Sanaz Dalalsharifi ◽  
Rattanaphol Mongkholrattanasit

In this paper, the sol-gel method was used for in-situ synthesis of SiO2 nanoparticles (NPs) on cotton fabrics with tetraethyl orthosilicate (TEOS) in the presence of acid and alkaline indicators. The samples were characterized using by (X-ray diffraction) XRD, (scanning electron Microscopy) SEM, (Inductively coupled plasma) ICP, water drop test and also the flame retardant properties were studied by char yield. The SEM images showed that the nanoparticles are spherical in shape and the acidity or alkalinity of the medium has an effect on the formation of particles. The XRD patterns showed the typical diffraction of amorphous SiO2 (Si-O short-order structure), also ICP analysis showed that by washing the fabrics, the nanoparticles are still present on the fabric, and this indicated the stability of the washing of the fabrics impregnated with the nanoparticles. By in-situ synthesis of SiO2 nanoparticles, the flame retardant properties have been improved significantly and the amount of residual char was increased and samples were observed to be hydrophilic.


2012 ◽  
Vol 70 (3) ◽  
pp. 1037-1048 ◽  
Author(s):  
Emrah Çakmakçı ◽  
Yusuf Mülazim ◽  
Memet Vezir Kahraman

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