Dielectric and microwave properties of elastomer composites loaded with carbon-silica hybrid fillers

2015 ◽  
Vol 133 (7) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ahmed A. Al-Ghamdi ◽  
Omar A. Al-Hartomy ◽  
Falleh R. Al-Solamy ◽  
Nikolay Dishovsky ◽  
Mihail Mihaylov ◽  
...  
Keyword(s):  
Microwave Properties ◽  
Hybrid Fillers ◽  
Elastomer Composites ◽  
Silica Hybrid

Microwave properties of natural rubber based composites comprising conductive carbon black/silica hybrid fillers

2016 ◽  
Vol 23 (9) ◽  
Author(s):  
Ahmed A. Al-Ghamdi ◽  
Omar A. Al-Hartomy ◽  
Falleh R. Al-Solamy ◽  
Nikolay Dishovsky ◽  
Mihail Mihaylov ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Microwave Properties ◽  
Conductive Carbon Black ◽  
Hybrid Fillers ◽  
Silica Hybrid

scholarly journals Functionalized Halloysite Nanotubes–Silica Hybrid for Enhanced Curing and Mechanical Properties of Elastomers

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 883 ◽  
Author(s):  
Jing Lin ◽  
Dechao Hu ◽  
Yuanfang Luo ◽  
Bangchao Zhong ◽  
Yongjun Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Crosslinking Density ◽  
Halloysite Nanotubes ◽  
Styrene Butadiene Rubber ◽  
Positive Contribution ◽  
Butadiene Rubber ◽  
Practical Applications ◽  
Elastomer Composites ◽  
Styrene Butadiene ◽  
Silica Hybrid

Vulcanization and reinforcement are critical factors in governing the ultimate practical applications of elastomer composites. Here we achieved a simultaneous improvement of curing and mechanical properties of elastomer composites by the incorporation of a functionalized halloysite nanotubes–silica hybrid (HS-s-M). Typically, HS-s-M was synthesized by 2-mercapto benzothiazole (M) immobilized on the surface of halloysite nanotubes–silica hybrid (HS). It was found that the HS-s-M uniformly dispersed in the styrene-butadiene rubber (SBR) matrix, offering more opportunity for M molecules to communicate with rubber. In addition, the physical loss of accelerator M from migration and volatilization was efficiently suspended. Therefore, SBR/HS-s-M composites showed a lower curing activation energy and a higher crosslinking density than SBR/HS composites. Moreover, a stronger interfacial interaction between HS-s-M and SBR was formed by the cross-linking reaction, giving a positive contribution to the eventual mechanical properties. The possible vulcanization and reinforcement mechanisms of SBR/HS-s-M composites were also analyzed in detail.

Characterization of carbon silica hybrid fillers obtained by pyrolysis of waste green tires by the STEM–EDX method

2015 ◽  
Vol 101 ◽  
pp. 90-96 ◽  
Author(s):  
Omar A. Al-Hartomy ◽  
Ahmed A. Al-Ghamdi ◽  
Said A. Farha Al Said ◽  
Nikolay Dishovsky ◽  
Michael B. Ward ◽  
...  
Keyword(s):  
Hybrid Fillers ◽  
Silica Hybrid

scholarly journals A Comparative Study of the Phase Distribution in Carbon-Silica Hybrid Fillers for Rubber Obtained by Different Methods

2014 ◽  
Vol 05 (10) ◽  
pp. 685-697 ◽  
Author(s):  
Omar A. Al-Hartomy ◽  
Ahmed A. Al-Ghamdi ◽  
Said A. Farha Al-Said ◽  
Nikolay Dishovsky ◽  
Michael B. Ward ◽  
...  
Keyword(s):  
Comparative Study ◽  
Phase Distribution ◽  
Hybrid Fillers ◽  
Silica Hybrid

scholarly journals Physicochemical Characterization of Functional Lignin–Silica Hybrid Fillers for Potential Application in Abrasive Tools

Materials ◽  
2016 ◽  
Vol 9 (7) ◽  
pp. 517 ◽  
Author(s):  
Beata Strzemiecka ◽  
Łukasz Klapiszewski ◽  
Artur Jamrozik ◽  
Tadeusz Szalaty ◽  
Danuta Matykiewicz ◽  
...  
Keyword(s):  
Potential Application ◽  
Physicochemical Characterization ◽  
Hybrid Fillers ◽  
Abrasive Tools ◽  
Silica Hybrid

scholarly journals The Effect of Clay/Multiwall Carbon Nanotube Hybrid Fillers on the Properties of Elastomer Nanocomposites

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Sung Ho Song
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Chemical Properties ◽  
Styrene Butadiene Rubber ◽  
Multiwall Carbon Nanotube ◽  
Butadiene Rubber ◽  
Multiwalled Carbon ◽  
Hybrid Fillers ◽  
Elastomer Composites ◽  
Physical And Chemical

The hybrid fillers of 1D multiwalled carbon nanotubes (MWNT) and 2D montmorillonite (MMT) have led to excellent physical and chemical properties in high performance elastomer nanocomposites. In this study, the hybridization of PDDA (polydiallyldimethylammonium chloride) functionalized MWNT (P-MWNT) and hydroxyl-functionalized MMT (H-MMT) was prepared by the electrostatic interaction between the positive charge on the MWNT and the negative charge on the MMT using a simple solution mixing process. Also, a styrene-butadiene rubber (SBR) nanocomposite containing the hybrid nanofillers was prepared to improve the dispersion of nanofillers with SBR latex. The SBR nanocomposites with the hybrid nanofillers exhibited outstanding mechanical properties including modulus, tensile strength, and elongation at break, due to the enhanced interfacial bonding with the elastomer matrix. Furthermore, the hybrid nanofillers in the SBR matrix showed superior thermal and electrical properties and gas barrier performance at low loadings. The synergistic effects of the SBR produced by the hybridized nanofillers will open up new opportunities for elastomer composites with high performance.

Microwave properties of natural rubber based composites containing carbon black-magnetite hybrid fillers

2018 ◽  
Vol 25 (3) ◽  
pp. 611-620 ◽  
Author(s):  
Ahmed A. Al-Ghamdi ◽  
Omar A. Al-Hartomy ◽  
Falleh Al-Solamy ◽  
Nikolay Dishovsky ◽  
Petrunka Malinova ◽  
...  
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Microwave Properties ◽  
Synthesis And Characterization ◽  
Hybrid Filler ◽  
Hybrid Fillers ◽  
True Hybrid ◽  
Magnetite Phase ◽  
Microwave Characteristics

Abstract The paper presents the synthesis and characterization of a carbon black-magnetite hybrid filler. The complex study on the structure of the filler has shown the magnetite phase to be distributed both over the surface (inter-aggregately) and inside (intra-aggregately) the carbon black particles, thus forming a true hybrid material. The results from the investigations on the mechanical and microwave properties of natural rubber-based composites filled with the new hybrid filler have been also reported. They have been compared to those of a composite comprising the physical mixture of carbon black and magnetite (at the same ratio as in the hybrid filler). The determined microwave characteristics of the composite comprising the hybrid filler obtained reveal the possibility for its use in manufacturing elastomer-based microwave absorbers.

Novel organomodified kaolin/silica hybrid fillers in natural rubber and its blend with polybutadiene rubber

2016 ◽  
Vol 74 (3) ◽  
pp. 783-801 ◽  
Author(s):  
R. V. Sreelekshmi ◽  
J. D. Sudha ◽  
A. R. Ravindranatha Menon
Keyword(s):  
Natural Rubber ◽  
Hybrid Fillers ◽  
Polybutadiene Rubber ◽  
Silica Hybrid
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