Novel polyether polyurethane/clay nanocomposites synthesized with organicly modified montmorillonite as chain extenders

2005 ◽  
Vol 99 (1) ◽  
pp. 6-13 ◽  
Author(s):  
Ping Ni ◽  
Quanlin Wang ◽  
Jing Li ◽  
Jishuan Suo ◽  
Shuben Li
Keyword(s):  
Clay Nanocomposites ◽  
Modified Montmorillonite ◽  
Chain Extenders

Use of crystal violet to prepare SBR-montmorillonite clay nanocomposites

e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Sugata Chakraborty ◽  
Saptrashi Kar ◽  
Saikat Dasgupta ◽  
Rabindra Mukhopadhyay ◽  
Samar Bandyopadhyay
Keyword(s):  
Crystal Violet ◽  
Montmorillonite Clay ◽  
Styrene Butadiene Rubber ◽  
Clay Nanocomposites ◽  
Butadiene Rubber ◽  
Modified Montmorillonite ◽  
Clay Slurry ◽  
Styrene Butadiene ◽  
Master Batch

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.

Intercalated clay nanocomposites: Morphology, mechanics and fracture behavior

2000 ◽  
Vol 661 ◽  
Author(s):  
Adam S. Zerda ◽  
Alan J. Lesser
Keyword(s):  
Fracture Toughness ◽  
Fracture Surface ◽  
Failure Mechanism ◽  
Fracture Behavior ◽  
Surface Topology ◽  
Clay Nanocomposites ◽  
Compressive Behavior ◽  
Modified Montmorillonite ◽  
Montmorillonite Clays ◽  
Curing Agents

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.

Modification of clays with styrenic ionic liquid by Synthesis of in-situ Polystyrene Nanocomposite

e-Polymers ◽  
2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Mohammad Galehassadi ◽  
Fatemeh Hosseinzadeh ◽  
Mehrdad Mahkam
Keyword(s):  
Electron Microscopy ◽  
Ionic Liquid ◽  
Clay Nanocomposites ◽  
X Ray Diffraction ◽  
X Ray ◽  
Modified Montmorillonite ◽  
Transmission Electron ◽  
Insitu Polymerization ◽  
Thermal Stability Of

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.

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 ◽  
...  
Keyword(s):  
High Performance ◽  
Clay Nanocomposites ◽  
Modified Montmorillonite

Control of thermal degradation of polylactide (PLA)-clay nanocomposites using chain extenders

2012 ◽  
Vol 97 (4) ◽  
pp. 554-565 ◽  
Author(s):  
N. Najafi ◽  
M.C. Heuzey ◽  
P.J. Carreau ◽  
Paula M. Wood-Adams
Keyword(s):  
Thermal Degradation ◽  
Clay Nanocomposites ◽  
Chain Extenders
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