High-performance elastomer

An extremely durable, high-performance elastomer that exhibits superior wear performance characteristics, particularly for heavy vehicle tread and tracks. This composition consists mainly of hydrogenated nitrile butadiene rubber (HNBR) polymers and optional polymer blends.


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HNBR Elastomeric Compound Applications

ARL’s high performance elastomer provides superior wear performance for vehicle treads and tracks

The US Army Research Laboratory (ARL) performs fundamental interdisciplinary research in materials and manufacturing science, ensuring, for example, that military tracked vehicles produce low noise, wear well, have improved traction, and reduce damage to road surfaces. Historically, field performance of the rubber tracked products has been poor. When the Abrams M1 Main Battle Tank was introduced in the 1980’s, the lifespan of the rubber track pads used was only 900 miles. ARL initiated an effort to develop improved rubber compounds for the track pads on military tracked vehicles which resulted in a higher performance elastomer based on HNBR. This material improved wear distance to more than 2000 miles.

This elastomer provides outstanding wear properties compared to other traditional elastomers. More specifically, the material provides improved resistance to tearing, blow-out, heat aging, chunking/chipping, cutting, and flexural fatigue. In fact, it has up to five times more abrasion resistance than comparable materials like SBR (styrene butadiene rubber). It retains superior mechanical and dynamic properties at high-temperatures and is resistant to petroleum-based materials (fuels, oils, detergents) and military decontamination chemicals, such as DS-2. In addition, it has shown resistance to combustion and actually exhibits some self-extinguishing capabilities.

Given the improved wear resistance and service life, the patented Army material could benefit numerous commercial applications such as: tracked construction and mining equipment, as a “rubber-like” coating to prevent industrial metal-on-metal abrasion, engine belts, and mounts.

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