Development of high-performance epoxy/clay nanocomposites by incorporating novel phosphonium modified montmorillonite

2011 ◽  
Vol 122 (1) ◽  
pp. 666-675 ◽  
Author(s):  
Keiji Saitoh ◽  
Kenji Ohashi ◽  
Toshiyuki Oyama ◽  
Akio Takahashi ◽  
Joji Kadota ◽  
...  
e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Sugata Chakraborty ◽  
Saptrashi Kar ◽  
Saikat Dasgupta ◽  
Rabindra Mukhopadhyay ◽  
Samar Bandyopadhyay

AbstractPresent study describes the preparation and characterization of crystal violet modified-montmorillonite clay nanocomposites by latex blending technique. Coagulation of the latex-clay slurry produced nanocomposites master batch. The master batch was compounded with Styrene Butadiene rubber (SBR). WAXD and TEM provided the evidences of formation of nanocomposite. Remarkable improvements in the mechanical properties were found by addition of small amount of modified clay.


2000 ◽  
Vol 661 ◽  
Author(s):  
Adam S. Zerda ◽  
Alan J. Lesser

ABSTRACTIntercalated nanocomposites of modified montmorillonite clays in a glassy epoxy were prepared by crosslinking with commercially available aliphatic diamine curing agents. These materials are shown to have improved Young's modulus but corresponding reductions in ultimate strength and strain to failure. These results are consistent with most particulate filled systems, The macroscopic compressive behavior is unchanged, although the failure mechanism in compression varies from the unmodified samples. The fracture toughness of these materials is investigated and improvements in toughness values of 200% over unmodified resis are demonstrated. The fracture surface topology is examined using SEM and tappin-mode AFM and showm to be related to the clay morphology of the system.


2005 ◽  
Vol 46 (2) ◽  
pp. 215-221 ◽  
Author(s):  
Lei Wang ◽  
Ke Wang ◽  
Ling Chen ◽  
Chaobin He ◽  
Yongwei Zhang

e-Polymers ◽  
2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Mohammad Galehassadi ◽  
Fatemeh Hosseinzadeh ◽  
Mehrdad Mahkam

Abstract Nanocomposites of polystyrene (PS) was prepared with new styrenic ionic liquid, N-(4-vinyl benzyl)-(N,N-dimethylamino) pyridinium chloride[VBMAP], surfactants used as organic modifications for the clays. Sodium montmorillonite (Na-MMT) was successfully modified by [VBMAP] to become OMMT through cation exchange technique which is shown by the increase of basalspacing of clay by XRD. The composite material based on polystyrene and organo-modified montmorillonite (OMMT) was prepared by insitu polymerization and characterized. The morphology of the polymer/clay hybrids was evaluated by X-ray diffraction (XRD) ,transmission electron microscopy (TEM) and scanning electron microscopy (SEM), showing good overall dispersion of the clay. The thermal stability of the polymer/clay nanocomposites were enhanced, as evaluated by thermogravimetric analysis.


RSC Advances ◽  
2017 ◽  
Vol 7 (45) ◽  
pp. 28358-28365 ◽  
Author(s):  
Sun Hwa Lee ◽  
Won Jun Lee ◽  
Tae Kyoung Kim ◽  
Mustafa K. Bayazit ◽  
Sang Ouk Kim ◽  
...  

UV-crosslinked sulfonated poly(arylene sulfone)/clay nanocomposites are fabricated by incorporating UV-crosslinkable monomers, bridge molecules, and clay nanofillers for high performance proton exchange membrane fuel cells.


RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34288-34296 ◽  
Author(s):  
Hao Zhang ◽  
Jun Zhang ◽  
Rongping Yun ◽  
Zhiguo Jiang ◽  
Haimei Liu ◽  
...  

The construction of high-performance polymer–clay nanocomposites plays an important role in developing new types of organic–inorganic hybrids.


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