Analysis of the Impact on the Mechanical Properties of Modification of Oligohydroxyethers in Organic Solvent Solution with Rubbers

This paper proposes and presents the chemical modification of linear hydroxyethers (LHE) with different molecular weights (380, 640, and 1830 g/mol) with the addition of three types of rubbers (polysulfide rubber (PSR), polychloroprene rubber (PCR), and styrene-butadiene rubber (SBR)). The main purpose of choosing this type of modification and the materials used was the possibility to use it in industrial settings. The modification process was conducted for a very wide range of modifier additions (rubber) per 100 g LHE. The materials obtained in the study were subjected to strength tests in order to determine the effect of the modification on functional properties. Mechanical properties of the modified materials were improved after the application of the modifier (rubber) to polyhydroxyether (up to certain modifier content). The most favorable changes in the tested materials were registered in the modification of LHE-1830 with PSR. In the case of LHE-380 and LHE-640 modified in cyclohexanol (CH) and chloroform (CF) solutions, an increase in the values of the tested properties was also obtained, but to a lesser extent than for LHE-1830. The largest changes were registered for LHE-1830 with PSR in CH solution: from 12.1 to 15.3 MPa for compressive strength tests, from 0.8 to 1.5 MPa for tensile testing, from 0.8 to 14.7 MPa for shear strength, and from 1% to 6.5% for the maximum elongation. The analysis of the available literature showed that the modification proposed by the authors has not yet been presented in any previous scientific paper.

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Hybrid Interface in Sepiolite Rubber Nanocomposites: Role of Self-Assembled Nanostructure in Controlling Dissipative Phenomena

Nanomaterials ◽

10.3390/nano9040486 ◽

2019 ◽

Vol 9 (4) ◽

pp. 486 ◽

Cited By ~ 4

Author(s):

Elkid Cobani ◽

Irene Tagliaro ◽

Marco Geppi ◽

Luca Giannini ◽

Philippe Leclère ◽

...

Keyword(s):

Mechanical Properties ◽

Rubber Matrix ◽

Styrene Butadiene Rubber ◽

Nuclear Magnetic Resonance Analysis ◽

Butadiene Rubber ◽

Resonance Analysis ◽

Self Assembled ◽

Styrene Butadiene ◽

The Impact

Sepiolite (Sep)–styrene butadiene rubber (SBR) nanocomposites were prepared by using nano-sized sepiolite (NS-SepS9) fibers, obtained by applying a controlled surface acid treatment, also in the presence of a silane coupling agent (NS-SilSepS9). Sep/SBR nanocomposites were used as a model to study the influence of the modified sepiolite filler on the formation of immobilized rubber at the clay-rubber interface and the role of a self-assembled nanostructure in tuning the mechanical properties. A detailed investigation at the macro and nanoscale of such self-assembled structures was performed in terms of the organization and networking of Sep fibers in the rubber matrix, the nature of both the filler–filler and filler–rubber interactions, and the impact of these features on the reduced dissipative phenomena. An integrated multi-technique approach, based on dynamic measurements, nuclear magnetic resonance analysis, and morphological investigation, assessed that the macroscopic mechanical properties of clay nanocomposites can be remarkably enhanced by self-assembled filler structures, whose formation can be favored by manipulating the chemistry at the hybrid interfaces between the clay particles and the polymers.

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Improvement The Mechanical Properties of Styrene Butadiene Rubber By Using Silica Fume

European Journal of Engineering Research and Science ◽

10.24018/ejers.2017.2.12.568 ◽

2017 ◽

Vol 2 (12) ◽

pp. 31

Author(s):

Ali Abed Salman

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Flexural Strength ◽

Silica Fume ◽

Polymeric Materials ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Materials Used ◽

Styrene Butadiene

Styrene butadiene rubber (SBR) is considered to be one of the greatest important polymeric materials used as a bond, so we discussed in this study to improve its properties .This study covers the effect of silica fume on mechanical properties of styrene butadiene rubber reinforced with silica fume. The composites were prepared with (1 to 3 wt. %) of silica fume particles .The results had indicated that the tensile strength and flexural strength are improved by (11.6% and 13.5%) respectively at 2 wt% and the hardness is improved by (9.3%) at 3wt%.

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Mechanical properties and morphologies of polypropylene composites synergistically reinforced-toughened by styrene–butadiene rubber and graphene oxide nanosheets

Journal of Thermoplastic Composite Materials ◽

10.1177/0892705719843965 ◽

2019 ◽

Vol 33 (3) ◽

pp. 413-431

Author(s):

Zhengjun Wang ◽

Yi Guo ◽

Lei Yan ◽

Jun Bian ◽

Hongcai Liu ◽

...

Keyword(s):

Mechanical Properties ◽

Graphene Oxide ◽

Impact Strength ◽

Mechanical Analysis ◽

Styrene Butadiene Rubber ◽

Differential Scanning Calorimetric ◽

Butadiene Rubber ◽

Β Phase ◽

Styrene Butadiene ◽

The Impact

Chemically reduced graphene (C- rGO) nanosheets were first prepared from graphene oxide (GO), and then the polypropylene (PP) composites synergistically reinforced–toughened by styrene–butadiene rubber (SBR), and C- rGO nanosheets were fabricated via melt blending. The mechanical properties of PP can be considerably improved by synergistically filling with C- rGO nanosheets and SBR, especially for the notched Izod impact strength (IS). The results from the X-ray diffraction, polarizing optical micrographs, scanning electron microscope, differential scanning calorimetric, dynamic mechanical analysis, and thermogravimetric analysis measurements reveal that: (1) the β-phase crystal structure of the PP is formed when the C- rGO and SBR are synergistically filled with PP and its formation plays a role for the enhancement of the impact strength for PP/SBR/C- rGO composites; (2) the dispersion of the C- rGO and SBR in the PP/SBR/C- rGO composites is homogeneous, indicating that synergistic incorporating method decreases the aggregation of nanosheets and thus increases the sites for dissipation of shock for impact energy in the PP/SBR/C- rGO composites; and (3) the thermal analysis shows high thermal stability for the PP/SBR/C- rGO composites.

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Insulation Materials for Wire and Cable Applications

Rubber Chemistry and Technology ◽

10.5254/1.3544996 ◽

2002 ◽

Vol 75 (4) ◽

pp. 701-712 ◽

Cited By ~ 12

Author(s):

J. L. Mead ◽

Z. Tao ◽

H. S. Liu

Keyword(s):

Material Selection ◽

Polymeric Materials ◽

Dielectric Strength ◽

Thermoplastic Elastomers ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Flame Resistance ◽

Wide Range ◽

Materials Used ◽

Styrene Butadiene

Abstract A wide range of polymers has been used for wire and cable insulation. Older materials include natural, butyl, and styrene-butadiene rubber. Newer materials include crosslinked polyethylene, silicone rubber, ethylene-propylene elastomers, and thermoplastic elastomers. Properties of importance to electrical insulation ability include dielectric constant, resistivity, dielectric loss, and dielectric strength. Flame resistance is also important in certain applications. This paper reviews the different polymeric materials used in cable constructions and the important electrical properties for material selection.

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Study on structures, dynamics and mechanical properties of styrene butadiene rubber (SBR)/silica interfaces: A fully atomistic molecular dynamics

Polymer ◽

10.1016/j.polymer.2021.123523 ◽

2021 ◽

Vol 218 ◽

pp. 123523

Author(s):

Mengyu Zhou ◽

Jun Liu ◽

Guanyi Hou ◽

Haibo Yang ◽

Liqun Zhang

Keyword(s):

Mechanical Properties ◽

Molecular Dynamics ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Styrene Butadiene

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Hybrid Silica-Based Fillers in Nanocomposites: Influence of Isotropic/Isotropic and Isotropic/Anisotropic Fillers on Mechanical Properties of Styrene-Butadiene (SBR)-Based Rubber

Polymers ◽

10.3390/polym13152413 ◽

2021 ◽

Vol 13 (15) ◽

pp. 2413

Author(s):

Mariapaola Staropoli ◽

Vincent Rogé ◽

Enzo Moretto ◽

Joffrey Didierjean ◽

Marc Michel ◽

...

Keyword(s):

Mechanical Properties ◽

Silica Nanoparticles ◽

Synergetic Effect ◽

Mechanical Analysis ◽

Rubber Matrix ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Precipitated Silica ◽

Scanning Transmission ◽

Styrene Butadiene

The improvement of mechanical properties of polymer-based nanocomposites is usually obtained through a strong polymer–silica interaction. Most often, precipitated silica nanoparticles are used as filler. In this work, we study the synergetic effect occurring between dual silica-based fillers in a styrene-butadiene rubber (SBR)/polybutadiene (PBD) rubber matrix. Precipitated Highly Dispersed Silica (HDS) nanoparticles (10 nm) have been associated with spherical Stöber silica nanoparticles (250 nm) and anisotropic nano-Sepiolite. By imaging filler at nano scale through Scanning Transmission Electron Microscopy, we have shown that anisotropic fillers align only in presence of a critical amount of HDS. The dynamic mechanical analysis of rubber compounds confirms that this alignment leads to a stiffer nanocomposite when compared to Sepiolite alone. On the contrary, spherical 250 nm nanoparticles inhibit percolation network and reduce the nanocomposite stiffness.

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Graft copolymerization of acrylic acid on to styrene butadiene rubber (SBR) to improve morphology and mechanical properties of SBR/polyurethane blend

Journal of Applied Polymer Science ◽

10.1002/app.43699 ◽

2016 ◽

Vol 133 (29) ◽

Cited By ~ 4

Author(s):

Shahed Taheri ◽

Yones Hassani ◽

Gity Mir Mohamad Sadeghi ◽

Fathollah Moztarzadeh ◽

Mei-Chun Li

Keyword(s):

Mechanical Properties ◽

Acrylic Acid ◽

Graft Copolymerization ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Styrene Butadiene ◽

Morphology And Mechanical Properties

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Novel modification of styrene butadiene rubber/acrylic rubber blends to improve mechanical, dynamic mechanical, and swelling behavior for oil sealing applications

Polymers and Polymer Composites ◽

10.1177/09673911211031351 ◽

2021 ◽

pp. 096739112110313

Author(s):

Ahmed Abdel-Hakim ◽

Soma A el-Mogy ◽

Ahmed I Abou-Kandil

Keyword(s):

Mechanical Properties ◽

Crosslink Density ◽

Physical And Mechanical Properties ◽

Dynamic Mechanical Properties ◽

Styrene Butadiene Rubber ◽

Butadiene Rubber ◽

Rubber Blends ◽

Dynamic Mechanical ◽

Oil Resistance ◽

Styrene Butadiene

Blending of rubber is an important route to modify properties of individual elastomeric components in order to obtain optimum chemical, physical, and mechanical properties. In this study, a novel modification of styrene butadiene rubber (SBR) is made by employing acrylic rubber (ACM) to obtain blends of outstanding mechanical, dynamic, and oil resistance properties. In order to achieve those properties, we used a unique vulcanizing system that improves the crosslink density between both polymers and enhances the dynamic mechanical properties as well as its resistance to both motor and break oils. Static mechanical measurements, tensile strength, elongation at break, and hardness are improved together with dynamic mechanical properties investigated using dynamic mechanical analyses. We also proposed a mechanism for the improvement of crosslink density and consequently oil resistance properties. This opens new opportunities for using SBR/ACM blends in oil sealing applications that requires rigorous mechanical and dynamic mechanical properties.

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