Studies on the effect of titanate coupling agent (2.0%) on the mechanical properties of flyash-filled polybutadiene rubber

2004 ◽  
Vol 93 (3) ◽  
pp. 1293-1298 ◽  
Author(s):  
Nabil A. N. Alkadasi ◽  
Bhimrao D. Sarwade ◽  
D. G. Hundiwale ◽  
U. R. Kapadi
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Polybutadiene Rubber

scholarly journals Effect of Modified Sepiolite Nanofibers on Properties ofcis-Polybutadiene Rubber Composite Nanomaterials

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Fei Wang ◽  
Lei Feng ◽  
Qingguo Tang ◽  
Jinsheng Liang ◽  
Haifeng Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Rubber Matrix ◽  
Composite Nanomaterials ◽  
Polybutadiene Rubber ◽  
Rubber Composite ◽  
Hydrophilic Character ◽  
The Relationship ◽  
Sepiolite Nanofibers ◽  
Tearing Strength

In order to use sepiolite nanofibers ascis-polybutadiene rubber fillers, the hydrophilic character of sepiolite nanofibers should be modified by grafting organic group and controlling surface free energy for improving compatibility of sepiolite nanofibers in rubber matrix. The relationship between the performance of thecis-polybutadiene rubber filled with sepiolite and the coupling modification was investigated, and the influence of coupling agentγ-(2,3-epoxypropoxy)propyltrimethoxysilane dosage on mechanical properties ofcis-polybutadiene rubber materials was also studied. The results showed that the mechanical properties could be improved obviously after reinforcement by modified sepiolite nanofibers. The optimum dosage of coupling agentγ-(2,3-epoxypropoxy)propyltrimethoxysilane was 7%, and the tensile strength and tearing strength increased by 108.3% and 74.1%, respectively. On this basis, the reinforcement mechanism of the composite rubber materials was also discussed.

Effect of coupling agent on the mechanical properties of fly ash-filled polybutadiene rubber

2003 ◽  
Vol 91 (2) ◽  
pp. 1322-1328 ◽  
Author(s):  
Nabil A. N. Alkadasi ◽  
D. G. Hundiwale ◽  
U. R. Kapadi
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Coupling Agent ◽  
Polybutadiene Rubber

Effect of titanate coupling agent on the mechanical properties of clay-filled polybutadiene rubber

2004 ◽  
Vol 93 (3) ◽  
pp. 1299-1304 ◽  
Author(s):  
Nabil A. N. Alkadasi ◽  
U. R. Kapadi ◽  
D. G. Hundiwale
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Polybutadiene Rubber

scholarly journals Monitoring morphology and properties of hybrid organicinorganic materials from in situ polymerization of tetraethoxysilane in polyimide polymer: 1. Effect of the coupling agent on the microstructure and interfacial interaction

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Hamid Kaddami ◽  
Carsten Becker-Willinger ◽  
Helmut Schmid
Keyword(s):  
Mechanical Properties ◽  
Hybrid Materials ◽  
Coupling Agent ◽  
In Situ Polymerization ◽  
Interfacial Interaction ◽  
Inorganic Materials ◽  
Hybrid Films ◽  
Morphological Transformation ◽  
Temperature Relaxation ◽  
Saxs Analysis

AbstractTransmission electron microscopy (TEM), small angle X-ray (SAXS) and dynamical mechanical thermal analysis (DMTA) were used to characterize the morphology and thermo-mechanical properties of hybrid organic inorganic materials. These materials were based on polyimide (PI) and tetraethoxysilane (TEOS). Polyimide polymer is prepared from 4,4’-oxydianiline (ODA) 2,2-Bis(3- amino-4-hydroxyphenyl) hexafluoro-propane (6F-OHDA) pyromellitic dianhydride (PMDA) polyamic polymer. In one family of hybrid materials 3- isocyanatopropyltriethoxysilane (ICTS) is used as coupling agent in order to enhance the interfacial interaction between polyimide and silica. It was possible to modulate the morphology as well as the optical and thermo-mechanical properties of these hybrid materials depending on the formulation used. TEM and SAXS analysis indicated that silica domains on the nanoscale level are obtained when coupling agent is used in the formulation. Additionally the TEM and SAXS analysis indicated that miscibility of the organic and the inorganic phases on the molecular scale is obtained in the hybrid films when ICTS as coupling agent is added to the polyamic acid. These techniques show a fractal structure of the hybrid materials with coupling agent. This was confirmed with DMTA analysis which shows very high temperature relaxation (more than 450°C). From this result it could be derived that the addition of ICTS causes a morphological transformation from discrete particulate microstructure to fine interpenetrated or co-continuous phases. The intimate miscibility of the phases is accompanied at the same time by the amelioration of thermo-mechanical properties of the hybrid films.

Development of Banana/Coir Natural Fibers Reinforced Polypropylene Hybrid Composites: The Effect of MA-g-PP (Maleic Anhydride Grafted Polypropylene) on Mechanical Properties and Thermal Properties

2021 ◽  
Vol 32 ◽  
pp. 85-97
Author(s):  
Gunturu Bujjibabu ◽  
Vemulapalli Chittaranjan Das ◽  
Malkapuram Ramakrishna ◽  
Konduru Nagarjuna
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Coupling Agent ◽  
Mechanical Performance ◽  
Hybrid Composites ◽  
Natural Fibers ◽  
Mechanical Tests ◽  
Coir Fiber ◽  
Banana Fiber ◽  
C Fibers

Banana/Coir fiber reinforced polypropylene hybrid composites was formulated by using twin screw extruder and injection molding machine. Specimens were prepared untreated and treated B/C Hybrid composites with 4% and 8% of MA-g-PP to increase its compatibility with the polypropylene matrix. Both the without MA-g-PP and with MA-g-PP B/C hybrid composites was utilized and three levels of B/C fiber loadings 15/5, 10/10 and 5/15 % were used during manufacturing of B/C reinforced polypropylene hybrid composites. In this work mechanical performance (tensile, flexural and impact strengths) of untreated and treated (coupling agent) with 4% and 8% of MA-g-PP B/C fibers reinforced polypropylene hybrid composite have been investigated. Treated with MA-g-PP B/C fibers reinforced specimens explored better mechanical properties compared to untreated B/C fibers reinforced polypropylene hybrid composites. Mechanical tests represents that tensile, flexural and impact strength increases with increase in concentration of coupling agent compared to without coupling agent MA-g-PP hybrid composites . B/C fibers reinforced polymer composites exhibited higher tensile, flexural and impact strength at 5% of Banana fiber, 15% of fiber Coir in the presence of 8% of MA-g-PP compared to 4% of MA-g-PP and untreated hybrid composites. The percentage of water absorption in the B/C fibers reinforced polypropylene hybrid composites resisted due to the presence of coupling agent MA-g-PP and thermogravimetry analysis (TGA) also has done.

Effect of SEBS-MA and MAPP as coupling agent on the thermal and mechanical properties in highly filled composites of oil palm fiber/PP

2018 ◽  
Vol 26 (8) ◽  
pp. 699-709 ◽  
Author(s):  
José Alexandre Simão ◽  
José Manoel Marconcini ◽  
Luiz Henrique Capparelli Mattoso ◽  
Anand Ramesh Sanadi
Keyword(s):  
Mechanical Properties ◽  
Oil Palm ◽  
Coupling Agent ◽  
Thermal And Mechanical Properties ◽  
Palm Fiber
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