Nitrile rubber, also known as nitrile butadiene rubber, NBR, Buna-N, and acrylonitrile butadiene rubber, is a synthetic rubber derived from acrylonitrile (ACN) and butadiene. [1] Trade names include Perbunan, Nipol, Krynac and Europrene. This rubber is unusual in being resistant to oil, fuel, and other chemicals.

Increasing acrylonitrile content leads to higher hardness, strength, abrasion resistance, heat resistance, and oil/fuel resistance and lower resilience and low temperature flexibility. NBR is generally damaged by ozone, chlorinated solvents, ketones, aldehydes, esters, and nitrogen-containing solvents.

Sep 7, 2016 · NBR is the polymerization of Acrylonitrile (CH 2=CHCN) and Butadiene (CH2CH-CH=CH2) into one large multiple-unit chains. The amount of Acrylonitrile is varied to provide different range of oil resistance the base polymer will have. Typical ranges are between 14 to 50 percent acrylonitrile.

The NER Class T (LNER Class Q5) was a class of 0-8-0 steam locomotives of the North Eastern Railway. [1][2] There were two NER sub-classes. Class T had piston valves, while class T1 had slide valves. The London and North Eastern Railway classified both types as Q5.

Need help solving a tough engineering problem? NBR, Buna-N, and nitrile all represent the same elastomer based on a butadiene and acrylonitrile copolymer. Learn more about materials.

NBR rubber is a synthetic rubber compound made from acrylonitrile and butadiene, known for its natural resistance to oils, fuels, water and many chemicals. Generally speaking, it is a great, versatile product in the world of hydraulics and pneumatics.

May 30, 2020 · NBR rubber is a thermoset elastomer or rubber material. It has the highest thermal conductivity and a moderately high tensile strength among rubber materials. The graph bars on the material properties cards below compare NBR rubber to other rubber materials (top) and the entire database (bottom).

Nitrile (NBR), Hydrogenated Nitrile (HNBR/HSN) and Carboxylated Nitrile (XNBR) Product Information Units 1 & 2, London Road Business Park, Retford, Nottinghamshire, DN22 6HG, United Kingdom tel: +44 (0) 1777 712400 fax: +44 (0) …

Apr 11, 2023 · The ASTM D2000 type designation consists of two letters that identify the basic polymer type, such as “AA” for ethylene propylene diene (EPDM) rubber or “BA” for nitrile (NBR) rubber.

The following table provides a comprehensive list of nitrile rubber (NBR) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP). Click on the icon to switch between Metric and Imperial units.