Quantitative measurement of physisorbed silane on a silica particle surface treated with silane coupling agents by thermogravimetric analysis

2015 ◽  
Vol 133 (14) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ryota Yamazaki ◽  
Nozomi Karyu ◽  
Masayo Noda ◽  
Syuji Fujii ◽  
Yoshinobu Nakamura
2007 ◽  
Vol 555 ◽  
pp. 479-484 ◽  
Author(s):  
D. Stojanović ◽  
P. S. Uskoković ◽  
I. Balać ◽  
V.J. Radojević ◽  
R. Aleksić

Composites with nano-SiO2 particles and high density polyethylene (HDPE) matrix were produced by hot pressing with various particle contents and particle surface treatment using commercially available silane coupling agents: γ-methacryloxypropyltrimethoxy silane and γ- glycidyloxypropyltrimethoxysilane. The influence of the particle treatment on the mechanical properties of composites was determined by compression and indentation tests. Additionally, numerical analysis was performed in order to calculate Young’s modulus and stress concentrations for various particle contents in order to provide reference data by simulating micro- and macro particle composites with perfect bonding to the matrix.


2014 ◽  
Vol 28 (19) ◽  
pp. 1895-1906 ◽  
Author(s):  
Yoshinobu Nakamura ◽  
Ryota Yamazaki ◽  
Tomoyoshi Fukuda ◽  
Kohei Shitajima ◽  
Syuji Fujii ◽  
...  

2017 ◽  
Vol 54 (2) ◽  
pp. 341-344
Author(s):  
Anda Ionelia Mihai (Voicu) ◽  
Sorina Alexandra Garea ◽  
Eugeniu Vasile ◽  
Cristina Lavinia Nistor ◽  
Horia Iovu

The goal of this paper was to study the modification of porous clay heterostructures (PCHs) with various silane coupling agents. Two commercial coupling agents (3-aminopropyl-triethoxysilane (APTES) and 3-glycidoxypropyl-trimethoxysilane (GPTMS)) with different functional groups (amine and epoxy groups) were used as modifying agents for the PCHs functionalization. The functionalization of PCH with APTES and GPTMS was evaluated by Fourier transform infrared (FTIR) spectrometry, thermogravimetric analysis (TGA), X-Ray Diffractions (XRD) and BET Analysis. FTIR spectra of modified PCHs confirmed the presence of characteristic peaks of silane coupling agents. TGA results highlighted an increase of weight loss for the modified PCHs that was assigned to the degradation of silane coupling agents (APTES and GPTMS) attached to the PCHs. The XRD results showed that the structure of modified PCHs was influenced by the type of the silane coupling agent. The functionalization of PCHs with silane coupling agents was also confirmed by BET analysis. Textural parameters (specific surface area (SBET), total pore volume (Vt )) suggested that the modified PCHs exhibit lower values of SBET and a significant decrease of total pore volume than unmodified PCHs.


2021 ◽  
Vol 22 (1) ◽  
pp. 109-122
Author(s):  
S. Riaz ◽  
M. Ashraf ◽  
T. Hussain ◽  
M. T. Hussain ◽  
A. Younus ◽  
...  

Author(s):  
Xiaowei Zhang ◽  
Zilong Wang ◽  
Tianhao Li ◽  
Shengjie Zhu ◽  
Dunbo Yu ◽  
...  

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