Enhanced oil resistance and mechanical properties of nitrile butadiene rubber/lignin composites modified by epoxy resin

The results of study of the influence of hollow corundum microspheres HCM-S (5–100 µm) and HCM-L (70–180 µm) on the properties of nitrile butadiene rubber BNKS-18 are presented. The dependence of elastomer resistance to abrasion impact and physic and mechanical properties on the dispersion and concentration of hollow corundum microspheres is shown. The process of hollow corundum microspheres exfoliation of the elastomeric matrix, which largely determines the change of physic and mechanical properties, has been studied by specially developed stretching device compatible with an atomic force microscope. The paper describes microspheres exfoliation which is conventionally divided into 3 stages.

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A study on mechanical properties of equal wall thickness rubber bushing of positive displacement motor based on hydrogenated nitrile butadiene rubber aging test

Petroleum ◽

10.1016/j.petlm.2021.04.008 ◽

2021 ◽

Author(s):

Changshuai Shi ◽

Xiaofeng Wan ◽

Xiaohua Zhu ◽

Kailin Chen

Keyword(s):

Mechanical Properties ◽

Wall Thickness ◽

Butadiene Rubber ◽

Nitrile Butadiene Rubber ◽

Positive Displacement ◽

Aging Test ◽

Rubber Bushing

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S4-Containing hyperbranched polymer modified graphene oxide as strong linker for both rubber and carbon black to enhance the crosslinking and mechanical properties of nitrile butadiene rubber

Chemical Engineering Journal ◽

10.1016/j.cej.2021.129336 ◽

2021 ◽

Vol 417 ◽

pp. 129336

Author(s):

Jun Qiu ◽

Hongfei Wang ◽

Jingwen Shao ◽

Kefu Zhang ◽

Juan Wu ◽

...

Keyword(s):

Mechanical Properties ◽

Graphene Oxide ◽

Carbon Black ◽

Hyperbranched Polymer ◽

Butadiene Rubber ◽

Nitrile Butadiene Rubber ◽

Modified Graphene Oxide ◽

Modified Graphene

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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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