Polyuerthane Tyre material

Polyurethane tire material is microcellular urethane elastomer which consist of DHR-A(blend polyol) and DHR-B(isocyanate).Microc

Polyuerthane Tyre material

DHR-A/B

Introduction:

        Polyurethane tire material is microcellular urethane elastomer which consist of DHR-A(blend polyol) and DHR-B(isocyanate).Microcellular urethane elastomer is a new materials between polyurethane foam and polyurethane elastomer which enjoys the good mechanical properties of elstomers and the comfort ability of polyurethane foam. With high strength, good toughness, small weight, compression stress transfer smoothly, oil resistance, hydroxyl resistance and excellent fatigue resistance, polyurethane tire material is gradually replace traditional rubber material. PU tire material is of good vibration reduction ability, this material is widely used in auto soft parts field

        The polyurethane tire materials of Dongda INOV is not only has good wear resistance and tensile properties but also has good hydrolysis resistance, anti fungus property and dynamic bending ability. The final products can be used under damp, hot, low temperature and other bad environment for long time.

Typical performance

	DHR-A	DHR-B
appearance	Ivory viscous liquid	Colorless or light yellow transparent liquid
hydroxyl value    mgKOH/g	225±10	/
dynamic viscosity(25°C)  mpa.s	1000±200	10±5
Specific gravity(20°C)      g/ml	1.1±0.05	1.2±0.05
Storage temperature     °C	15-25	15-25
Storage time * month	6	12

*please store at the recommended temperature,please store in dry original drums.

Recommended  Ratio

	Weight(ratio)
DHR—A DHR-B	100 50-100

*      The ratio can be adjusted according to the production requirements

 

 

Reaction performance(mixing temperature is 20°C)

Data maybe changed by operation conditions and customer requirement

	By manual	By machine
Cream time            s Rise time             s Gel time              s Mold temperature     °C Demould time         min Free density        kg/m3	10—30 10—35 35—55 35—65 3—10 300—1000	8—28 8—30 35—55 35—65 3—10 300—1000

 

Materials typical Property

	Unit	Data	Data
Molding specific gravity Tensile strength Rebound Tear strength Elongation	Kg/m3 MPa % N/cm %	440 3.75 45 15.50 180	500 4.55 43 20.65          200

These above data is typical performance tested by our Company. Data listed above is not constraints by any law.

Polyuerthane Tyre material