Polyamide 6/clay nanocomposites using a cointercalation organophilic clay via melt compounding

2003 ◽  
Vol 88 (4) ◽  
pp. 953-958 ◽  
Author(s):  
Xiaohui Liu ◽  
Qiuju Wu ◽  
Lars A. Berglund ◽  
H. Lindberg ◽  
Jiaqi Fan ◽  
...  
Keyword(s):  
Polyamide 6 ◽  
Clay Nanocomposites ◽  
Melt Compounding ◽  
Organophilic Clay

One-step water-assisted melt-compounding of polyamide 6/pristine clay nanocomposites: An efficient way to prevent matrix degradation

2011 ◽  
Vol 96 (10) ◽  
pp. 1890-1900 ◽  
Author(s):  
F. Touchaleaume ◽  
J. Soulestin ◽  
M. Sclavons ◽  
J. Devaux ◽  
M.F. Lacrampe ◽  
...  
Keyword(s):  
Polyamide 6 ◽  
Clay Nanocomposites ◽  
Matrix Degradation ◽  
Melt Compounding ◽  
One Step

Spectroscopic and Diffractional Characteristics of Membranes and Polyamide 6/Regional Bentonite Clay Nanocomposites

2014 ◽  
Vol 775-776 ◽  
pp. 168-172 ◽  
Author(s):  
Larissa Fernandes Maia ◽  
A.M.D. Leite ◽  
E.M. Araújo ◽  
H.L. Lira ◽  
R. A. da Paz
Keyword(s):  
Bentonite Clay ◽  
Polyamide 6 ◽  
Polymeric Membranes ◽  
Mechanical Resistance ◽  
Clay Nanocomposites ◽  
X Ray Diffraction ◽  
Polymer Properties ◽  
Organically Modified ◽  
Organophilic Clay ◽  
Processed Form

Polymeric membranes are attracting attention of researchers and industries due to their lower costs. However, they also have lower mechanical resistance and chemical solvents, when compared with other materials. An improvement of polymer properties can be obtained by adding an inorganic nanoload in the structure. This study produced polyamide 6 / bentonite clay nanocomposites with a nominal content of 3%, and this was used in the processed form and in the organically modified form by cation exchange. The nanocomposites were produced by melt intercalation, and then, the membranes were obtained by the technique of immersion-precipitation. Bentonite, organophilic clay, the material processed in the extruder and the membranes were submitted to the x-ray diffraction (XRD) and infrared spectroscopy (ATR-FTIR). By both techniques, it was possible to prove the organic modification of clay and the change in the crystallinity of the nanocomposites and of the membranes.

scholarly journals Thermal and Quasi-Static Mechanical Characterization of Polyamide 6-Graphene Nanoplatelets Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1454
Author(s):  
Pietro Russo ◽  
Francesca Cimino ◽  
Antonio Tufano ◽  
Francesco Fabbrocino
Keyword(s):  
Chemical Resistance ◽  
Experimental Tests ◽  
Polyamide 6 ◽  
Graphene Nanoplatelets ◽  
Strength Parameter ◽  
Melt Compounding ◽  
Static Mechanical ◽  
Thermal And Electrical Properties ◽  
Multifunctional Products

The growing demand for lightweight and multifunctional products in numerous industrial fields has recently fuelled a growing interest in the development of materials based on polymer matrices including graphene-like particles, intrinsically characterized by outstanding mechanical, thermal, and electrical properties. Specifically, with regard to one of the main mass sectors, which is the automotive, there has been a significant increase in the use of reinforced polyamides for underhood applications and fuel systems thanks to their thermal and chemical resistance. In this frame, polyamide 6 (PA6) composites filled with graphene nanoplatelets (GNPs) were obtained by melt-compounding and compared in terms of thermal and mechanical properties with the neat matrix processed under the same condition. The results of the experimental tests have shown that the formulations studied so far offer slight improvements in terms of thermal stability but much more appreciable benefits regarding both tensile and flexural parameters with respect to the reference material. Among these effects, the influence of the filler content on the strength parameter is noteworthy. However, the predictable worsening of the graphene sheet dispersion for GNPs contents greater than 3%, as witnessed by scanning electron images of the tensile fractured sections of specimens, affected the ultimate performance of the more concentrated formulation.

Properties of polyamide 6/clay nanocomposites processed by low cost bentonite and different organic modifiers

2009 ◽  
Vol 62 (6) ◽  
pp. 791-800 ◽  
Author(s):  
D. García-López ◽  
I. Gobernado-Mitre ◽  
J. F. Fernández ◽  
J. C. Merino ◽  
J. M. Pastor
Keyword(s):  
Low Cost ◽  
Polyamide 6 ◽  
Clay Nanocomposites ◽  
Organic Modifiers

Morphology and mechanical properties of polypropylene/polyamide 6 nanocomposites prepared by a two-step melt-compounding process

2006 ◽  
Vol 100 (1) ◽  
pp. 283-291 ◽  
Author(s):  
Markus Gahleitner ◽  
Bernd Kretzschmar ◽  
Doris Pospiech ◽  
Elisabeth Ingolic ◽  
Norbert Reichelt ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyamide 6 ◽  
Melt Compounding ◽  
Morphology And Mechanical Properties

scholarly journals Polymeric Nanocomposites: Compounding and Performance

2008 ◽  
Vol 8 (4) ◽  
pp. 1582-1596 ◽  
Author(s):  
L. A. Utracki
Keyword(s):  
Mechanical Performance ◽  
Extensional Flow ◽  
Polyamide 6 ◽  
Nano Particles ◽  
Polymeric Nanocomposites ◽  
Organic Salts ◽  
Melt Compounding ◽  
Twin Screw ◽  
And Performance ◽  
Kinetics Of

Polymeric nanocomposites (PNC) are binary mixtures of strongly interacting, inorganic platelets dispersed in a polymeric matrix. For full exfoliation, the thermodynamic miscibility is required. There are three basic methods of organically-modified clay dispersion that might result in PNC: (1) in polymer solution (followed by solvent removal), (2) in a monomer (followed by polymerization), and (3) in molten polymer (compounding). Most commercial PNC are produced by the second method, but it is the third one that has the greatest promise for the plastics industry. Similarly as during the manufacture of polymer blends, the layered silicates must be compatibilized by intercalation with organic salts and/or addition of functionalized macromolecules. Compounding affects the kinetics of dispersion process, but rarely the miscibility. Melt compounding is carried out either in a single-screw (SSE) or a twin-screw extruder (TSE). Furthermore, an extensional flow mixer (EFM) might be attached to an extruder. Two versions of EFM were evaluated: (1) designed for polymer homogenization and blending, and (2) designed for dispersing nano-particles. In this review, the dispersion of organoclay in polystyrene (PS), polyamide-6 (PA-6) or in polypropylene (PP) is discussed. The PNC based on PS or PA-6 contained two components (polymer and organoclay), whereas those based on PP in addition had a compatibilizer mixture of two maleated polypropylenes. Better dispersion was found compounding PNC's in a SSE + EFM than in TSE with or without EFM. The mechanical performance (tensile, flexural and impact) was examined.

Preparation and characterization of PET/clay nanocomposites by melt compounding

2011 ◽  
Vol 51 (6) ◽  
pp. 1178-1187 ◽  
Author(s):  
Hesam Ghasemi ◽  
Pierre J. Carreau ◽  
Musa R. Kamal ◽  
Jorge Uribe-Calderon
Keyword(s):  
Clay Nanocomposites ◽  
Melt Compounding

Effect of interfacial interaction on the structure and rheological properties of polyamide-6/clay nanocomposites

2006 ◽  
Vol 13 (8-9) ◽  
pp. 773-782 ◽  
Author(s):  
J. S. Choi ◽  
S. T. Lim ◽  
H. J. Choi ◽  
A. Pozsgay ◽  
L. Százdi
Keyword(s):  
Rheological Properties ◽  
Polyamide 6 ◽  
Interfacial Interaction ◽  
Clay Nanocomposites

Preparation and Characterization of Natural Rubber/Organophilic Clay Nanocomposites

2015 ◽  
pp. 131-138
Author(s):  
M. Gonzales-Fernandes ◽  
F. J. Esper ◽  
M. G. Silva-Valenzuela ◽  
G. R. Martín-Cortés ◽  
F. R. Valenzuela-Diaz ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Clay Nanocomposites ◽  
Organophilic Clay
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