Comparison of the Dynamic Mechanical Properties of Two Styrene‐Butadiene‐Styrene Triblock Copolymers with 1,2‐ and 1,4‐Polybutadiene Center Blocks

1976 ◽  
Vol 20 (1) ◽  
pp. 153-169 ◽  
Author(s):  
R. E. Cohen ◽  
N. W. Tschoegl
Keyword(s):  
Mechanical Properties ◽  
Triblock Copolymers ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Butadiene Styrene

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

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.

Flammability and mechanical properties of poly(styrene–butadiene–styrene) copolymer–containing intumescent flame retardants

2015 ◽  
Vol 30 (6) ◽  
pp. 816-826 ◽  
Author(s):  
Yiren Huang ◽  
Jianwei Yang ◽  
Zhengzhou Wang
Keyword(s):  
Mechanical Properties ◽  
Flame Retardant ◽  
Flame Retardants ◽  
Oxygen Index ◽  
Limiting Oxygen Index ◽  
Styrene Butadiene Styrene ◽  
Flame Retardant Properties ◽  
Intumescent Flame Retardants ◽  
Styrene Butadiene ◽  
Butadiene Styrene

Flame-retardant properties of ammonium polyphosphate (APP) and its two microcapsules, APP with a shell of melamine–formaldehyde (MF) resin (MFAPP) and APP with a shell of epoxy resin (EPAPP), were studied in styrene–butadiene–styrene (SBS). The results indicate that APP after the microencapsulation leads to an increase in limiting oxygen index in SBS compared with APP. When dipentaerythritol is incorporated into the SBS composites containing the APP microcapsules, a further improvement in flame retardancy of the composites is observed. The microencapsulation does not result in much improvement of mechanical properties. Moreover, the effect of a compatibilizer (SBS grafted with maleic anhydride) on flame-retardant and mechanical properties of SBS/APP composites was investigated.

Mechanical and thermal behaviours of graphite flake-reinforced acrylonitrile–butadiene–styrene composites and their correlation with entanglement density, adhesion, reinforcement and C factor

RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 50559-50571 ◽  
Author(s):  
Alok Kumar Pandey ◽  
Ravindra Kumar ◽  
Vashu Singh Kachhavah ◽  
Kamal K. Kar
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Acrylonitrile Butadiene Styrene ◽  
Dynamic Mechanical Properties ◽  
Graphite Flake ◽  
Entanglement Density ◽  
Dynamic Mechanical ◽  
Melt Compounding ◽  
Butadiene Styrene

Dynamic mechanical properties of the polymer composites prepared by melt compounding of acrylonitrile–butadiene–styrene (ABS) and graphite flakes (GFs).

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