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  • Schaumstoffe

Mondur® 1488

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  • PMDI

Material

Schaumstoffe
viscoelastisch

Allgemeine Charakterisierung

Mondur 1488 is a low-functionality polymeric diphenylmethane diisocyanate (pMDI) with a moderately high 2,4’-MDI isomer content.

Lagerungsbedingungen

Mondur 1488 isocyanate must be stored in tightly closed containers and protected from contamination with moisture and foreign materials, which can adversely affect processing. It will react with water to form ureas and carbon dioxide gas, which may cause sealed containers to expand and rupture. Storage temperatures should be maintained at 18° to 30°C (64° to 86°F). Under these conditions, Mondur 1488 will remain clear for up to six months. Within this range, lower storage temperatures will maximize the storage life of the product. Mondur 1488 isocyanate must not be allowed to freeze. Exposure to temperatures less than 18°C (64°F), can result in the formation of solid material. During the winter months, appropriate precautions must be taken during shipment and storage.
If solids form because of exposure of Mondur 1488 isocyanate to low temperatures, it may be possible to reliquify the product by heating. Use a well-ventilated oven for the minimum time necessary to render it clear. The temperature of the product should not exceed 60°C (140°F).
Agitation or drum rollers are recommended to avoid excessive local heating, which will degrade the product. The use of drum heaters is not recommended since the excessive heating causes dimerization, loss of NCO, and an increase in viscosity. As a result, the re-melted product may be cloudy, and the processing behavior and/or properties of the final product may be affected. Prolonged storage of solid or partially solid Mondur 1488 isocyanate may result in the formation of MDI dimer in amounts that exceed its solubility in the product at normal storage temperatures. This can make the product unusable.
The shelf life is six months after receipt of material by customer, when stored in sealed original containers under conditions stated above.

Probenahme

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Verpackungsart

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Technische Eigenschaften & Datenblätter

Name der Eigenschaft Prüfverfahren Einheit Wert
Appearance Brown/grey liquid
Specific gravity at 25°C 1.24
Flash point PMCC °C > 93

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Technisches Datenblatt
Sicherheitsdatenblatt
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