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Nitrile butadiene rubber NBR-3305E

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Application

In line with the requirements of the European Union environmental protection butadiene rubber, used for automotive, drilling, engineering hydraulic hose in the rubber layer, the inner layer, textile rubber appearance, printing rubber,fitness material and translucent business material protection control materials and other insulation foaming materials, oil tank lining, oil resistant seal and miscellany.



Analysis Item

Quality Iandex


Test Results


Experiment method

Superior

product

Qualified product

Volatile matter, % (mass fraction)

≤0.50

≤0.70

0.18

GB/T 24131.1-2018  Hot roller method B2

Ash content, % (mass fraction)

≤0.75

≤0.75

0.71

GB/T 4498.1-2013 A

Bound acrylonitrile, % (mass fraction)

32.5~34.5

31.5~34.5

34.4

SH/T 1157.2-2015,

Method A

Mooney viscosity, ML (1+4) 100°C

50~60

50~60

55

GB/T 15340-2008 Over

Roll Method GB/T1232.1

300% modulus stress (145℃, 50min

type 1 sample, speed 500mm/min), MPa


10.6~14.6


10.3~14.9


12.7



GB/T 34685-2017

ASTM IRB No 8 carbon black GB/T 528-2009

Type I cutter

Tensile strength (145°C, 50min type I sample, speed 500mm/min), MPa

≥25

≥24

30.4

Elongation at break (145°C, 50min Type I sample, speed 500mm/min), %

≥470

≥440

595


3305 1

3305 2

3305 4



22

12

33


2222_副本





1111_副本




3333_副本


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