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Nitrile Rubber (NBR, Acrylonitrile-Butadiene Rubber)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Nitrile Rubber (NBR, Acrylonitrile-Butadiene Rubber).pdf
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Material Notes:
Nitrile Rubbers are copolymers of butadiene and acrylonitrile. The term has also been applied to copolymers of other dienes and/or nitriles. Acrylonitrile content may range from 18-50%. 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.
Physical Properties Metric English Comments
Density 1.00 g/cc
0.0361 lb/in³
Base Elastomer
1.15 - 1.35 g/cc
0.0415 - 0.0488 lb/in³
Compounded
Mechanical Properties Metric English Comments
Hardness, Shore D 30 - 95
30 - 95
Depends on compounding
Tensile Strength, Ultimate 6.89 - 24.1 MPa
1000 - 3500 psi
Reinforced
0.896 MPa

@Temperature 204 °C
130 psi

@Temperature 400 °F
4.83 MPa

@Temperature 121 °C
700 psi

@Temperature 250 °F
Elongation at Break 400 - 600 %
400 - 600 %
Reinforced
20 %

@Temperature 204 °C
20 %

@Temperature 400 °F
120 %

@Temperature 121 °C
120 %

@Temperature 250 °F
100% Modulus 0.00300 GPa
0.435 ksi
200 mm/min
Compression Set 5.0 %
5.0 %
Thermal Properties Metric English Comments
CTE, linear 702 µm/m-°C

@Temperature 20.0 °C
390 µin/in-°F

@Temperature 68.0 °F
Maximum Service Temperature, Air 120 °C
248 °F
Minimum Service Temperature, Air -30.0 °C
-22.0 °F
Brittleness Temperature -51.1 °C
-60.0 °F
Glass Transition Temp, Tg -38.0 °C
-36.4 °F
Typical of rubber with 18% ACN content
-2.00 °C
28.4 °F
Typical of rubber with 50% ACN content
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