Nitrile butadiene rubber (NBR) 2255

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Description

NBR 2255 is a copolymer of butadiene and acrylonitrile to be manufactured by cold emulsion polymerization through the advanced technology and process of LG Chem.

NBR 2255 is a non staining, medium mooney, and low acrylonitrile polymer designed to aid in processing operations such as extrusion and press molding. And also, this grade offers excellent flexibility and elasticityin low temperature by the minimized block structure and low acrylonitrile content on polymer chain.

This material data has been provided by LG Chem.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyValue

Bound AN Content

22.0 %

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Density

0.95 g/cm³

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Volatile share

0.2 %

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Mechanical

PropertyValueTesting StandardComment

Elongation

465 %

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ASTM D412

145°C×50min. Cured

Modulus at 300% elongation

0.0155 GPa

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ASTM D412

145°C×50min. Cured

Tensile strength

265 MPa

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ASTM D412

145°C×50min. Cured

Thermal

PropertyValue

Ash content

0.4 %

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Rheological Properties

PropertyValueComment

Mooney viscosity

55 MU

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ML1+4 and 100°C (milled)

Technological properties

Property
Application areas

NBR 2255 is preferably uesd for industrial belt, hoses, and many rubber parts such as seal and gasket. And also, it can be used for the industrial roller and low hardness roller of office printer due to good dynamic elasticity.

Color

Light Tan

Other

Shelf Life : 18 months from date of production atb room temperatures not exceeding 30°C under belowed storage condition (Retest critical parameters like MV and others after the expiry of shelf life).

Storage condition: NBR should be stored in warehouse to be protected from sunlight, heat, moisture and foreign materials.

Packaging size

Bale Weight: 35kg

Bale wrapping film: LDPE

Processing history

Polymerization: Cold Emulsion

Processing methods

Recipe (ASTM D3187):

NBR 2255: 100 phr

HAF(IRB #8): 40

ZnO: 3.0

Stearic Acid: 1.0

TBBS: 0.7

Sulfur: 1.5

Total: 146.2

Stabilizer

Non-Staining