KKPC KOSYN KNB 35LL Acrylonitrile Butadiene Rubber (NBR)

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KKPC KOSYN KNB 35LL Acrylonitrile Butadiene Rubber (NBR)
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Acrylonitrile Butadiene Rubber (NBR) Characteristics: KOSYN KNB is copolymer of high oil resistance and chemical resistance made from acrylonitrile and butadiene by the cold emulsion polymerization. Our NBR has superior working properties such as roll winding properties, compounding dispersibility and extrusion properties. Also, it is easily processed on account of the excellent vulcanization properties. Applications: General oil-resistant Rubber Products such as packing, gasket, hose, rolls, and shoe soles Additional Notes: Bound Acrylonitrile: 34% Compound Properties: NBR 100, ZnO 3, Stearic Acid 1, HAF Black (IRB#7) 40, Accelerator TBBS 1, Sulfur 1.5, Total: 146.5 Volume Change: -1% This product is so sensitive to sunlight and humidity that it can be tarnished and caused deterioration of quality if exposed. It is recommended to store it in cool and shady area lest it should be exposed to direct sunlight. Do not expose to incompatible materials or contaminants. Data provided by Korea Kumho Petrochemical Co., Ltd.
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Physical Properties	Original Value	Comments

Density	0.940 g/cc	Not Compounded
Mooney Viscosity	33 @Temperature 100 °C	Raw; ML1+4
	58 @Temperature 100 °C	Compounded; ML1+4

Mechanical Properties	Original Value	Comments
Hardness, Shore A	73	150°C, 40 min., Pressure Vulcanization. 0% Change after 100°C, 70 hrs, Oil Immersion
Tensile Strength, Ultimate	300 kg(f)/cm²	150°C, 40 min., Pressure Vulcanization. -8% Change after 100°C, 70 hrs, Oil Immersion
Elongation at Break	590 %	150°C, 40 min., Pressure Vulcanization. -29% Change after 100°C, 70 hrs, Oil Immersion
300% Modulus	130 kg(f)/cm² @Strain 300 %	150°C, 40 min., Pressure Vulcanization. 42% Change after 100°C, 70 hrs, Oil Immersion

Thermal Properties	Original Value	Comments
Shrinkage	0.00 % @Time 252000 sec	after Oil Immersion

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PKKPC38 / 48769

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