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Technical Information elastomer

Use in elastomer applications Use of DURANOL™ allows you to obtain thermoplastic and thermosetting elastomer and resin with excellent chemical resistance, abrasion resistance, and flexibility. DURANOL™ is used in a wide range of fields such as various rollers, rolls, belts, sealing, and gaskets.

Flexibility of DURANOL™

Generally, although PCD polyurethane tends to lack flexibility, use of liquid type DURANOL™ allows improvement of flexibility.

Tensile test of polyurethane
Tensile test of polyurethane
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[Measurement condition]
Polyurethane formulation: MDI / Polyol / 1, 4 - BDO = 2 / 1 / 1
Condition: According to JIS K7311
Test piece: 2 mm × 60 mm strip
Measuring instrument: TENSILON tensile testing machine

Heat resistance of DURANOL™

PCD polyurethanes show high strength retention even after storage at a high temperature.

Change in the property of a polyurethane film stored at 120°C
Change in the property of a polyurethane film stored at 120°C
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[Polyurethane formulation] H12MDI/Polyol/IPDA=2/1/1

Hydrolysis resistance of DURANOL™

It can be seen that PCD polyurethanes are hard to decompose when compared to polyether urethanes and polyester urethanes.

Change in the molecular weight of a polyurethane film immersed in hot water at a temperature of 100°C
Change in the molecular weight of a polyurethane film immersed in hot water at a temperature of 100°C
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[Polyurethane formulation] MDI/Polyol/1,4-BDO=2/1/1

Compatibility of DURANOL™ and other polyols

Generally, DURANOL™ has a good compatibility with polyester polyols.
In the case of acrylic polyols, the compatibility depends on their types.

Polyol PCD Polyol:PCD
9 : 1 7 : 3 5 : 5 3 : 7 1 : 9
Polybutylene adipate
(Polyester polyol)
T5650J good good good good good
T5652 good good good good good
G4672 good good good good good
G3452 good good good good good
T4692 good good good good good
Acrylic polyol T5650J good good goodfair fair fair
T5652 fair poor poor poor fairpoor
G4672 fair poor poor poor fairpoor
Polytetramethylene glycol
(Polyether polyol)
T5650J goodfair poor poor poor good
T5652 poor poor poor poor fair
G4672 fairpoor poor poor poor fair
[Judgment] good: Transparent, fair: Uniform but with turbidity, poor: Separation (Temperature: 60±3°C)


Temperature dependence of the viscosity of DURANOL™

T6002•T6001T6002•T6001 Temperature dependence of the viscosity of DURANOL™
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T5652•T5651•T5650JT5652•T5651•T5650J Temperature dependence of the viscosity of DURANOL™
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T4672•T4671T4672•T4671 Temperature dependence of the viscosity of DURANOL™
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G3452•G3450JG3452•G3450J Temperature dependence of the viscosity of DURANOL™
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[Viscometric measurement] Type B viscometer: HM2

旭化成 アルミペーストAsahi KASEI DURANATE™Asahi KASEI SB latex

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