UBE UBEPOL VCR® 800 Synthetic Polybutadiene Rubber

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UBE UBEPOL VCR® 800 Synthetic Polybutadiene Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Characteristics: Broad molecular weight distribution type (Matrix BR). Improve extrusion characteristics of VCR450. Applications: Tires for passenger cars, trucks, buses, construction machinery, motorcycles and bicycles. Various industrial products such as polystyrene modifier, conveyor belts, hoses, rubber isolators and casters. Commodities such as shoe soles and golf balls. UBEPOL VCR® consists of high-cis BR and high-crystalline syndiotactic polybutadiene resin which is a special type of polymer alloy. UBEPOL VCR® can contribute to produce various advantages: to increase hardness, modulus of rubber product without adding filler. To reduce the volume or weight of rubber product by utilizing its reinforcing effect. To improve extrusion properties (extrusion output and dimensional stability) and roll mill shrinkage. Information provided by UBE Industries, LTD
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Physical Properties	Original Value	Comments

Specific Gravity	0.910 g/cc
Mooney Viscosity	40 @Temperature 100 °C	ML1+4
	61 @Temperature 100 °C	Compound. ML1+4. ASTM D3189

Mechanical Properties	Original Value	Comments
Hardness, Shore A	66	Curing time: 50 min
Tensile Strength	16.7 MPa
Elongation at Break	380 %
100% Modulus	2.90 MPa	Curing time: 50 min
200% Modulus	7.40 MPa	Curing time: 50 min
300% Modulus	13.1 MPa	Curing time: 50 min
Rebound	49 %	BS. Curing Time: 50 min
Tear Strength	61.0 kN/m	Curing time: 50 min
Abrasion	88	Lambourn. Index. Slip rate 60%. Curing time: 50 min
	90	Lambourn. Index. Slip rate 20%. Curing time: 50 min
	230	Pico. Index. Curing time: 50min
Compression Set	25 %	Curing time: 50 min

Descriptive Properties
Anti-Oxidant	Non-staining
Curing Characteristics	10.1	MH (dN*m). ASTM D3189
	12.6	Tc(90) min. ASTM D3189
	2.1	ML (dN*m). ASTM D3189
	3	Ts1 min. ASTM D3189
	8.8	Tc(50) min. ASTM D3189
Cut Generation (cycles)	>30 e4	Curing time: 50 min
Cut Growth Resistance (cycles)	14000	Cut length ; from 2mm to 15mm. Curng time: 50 min
Heat Build Up	30°C	Delta T
Heat Build Up (%)	9	P.S
Microstructure	1	Trans. % wt. Microstructure of matrix polymer.
	1	Vinyl. % wt. Microstructure of matrix polymer.
	98	Cis. %wt. Microstructure of matrix polymer.
n-Hexane Insoluble (%wt)	5.3	SPB content in VCR
Package	35 kg bale

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