Desmodur® DN
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Allgemeine Charakterisierung
Aliphatic polyisocyanate of low volatility.
Desmodur® DN is a solvent-free liquid polyisocyanate that is emulsifiable in water. Any occasional turbidity or precipitation visible is caused by very small amounts of processing aids These have no adverse effect on the processing and final properties of the cured adhesives. It can be used as the crosslinker for largely pH-neutral aqueous polymer dispersions including polyurethane, polyvinyl acetate, polyacrylate and synthetic rubber dispersions. Crosslinking increases the resistance of the bonds to heat, water, plasticisers and many solvents. Compared with Desmodur® DA, Desmodur® DN is characterised by its much lower viscosity and is not prone to turbidity at low storage temperatures.
Desmodur® DN is a solvent-free liquid polyisocyanate that is emulsifiable in water. Any occasional turbidity or precipitation visible is caused by very small amounts of processing aids These have no adverse effect on the processing and final properties of the cured adhesives. It can be used as the crosslinker for largely pH-neutral aqueous polymer dispersions including polyurethane, polyvinyl acetate, polyacrylate and synthetic rubber dispersions. Crosslinking increases the resistance of the bonds to heat, water, plasticisers and many solvents. Compared with Desmodur® DA, Desmodur® DN is characterised by its much lower viscosity and is not prone to turbidity at low storage temperatures.
Lagerungsbedingungen
- Storage in original sealed Covestro container.
- Recommended storage temperature: 0 - 30 °C.
- Protect from moisture, heat and foreign material.
General information: The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.
- Recommended storage temperature: 0 - 30 °C.
- Protect from moisture, heat and foreign material.
General information: The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.
Probenahme
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Verpackungsart
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Technische Eigenschaften & Datenblätter
| Name der Eigenschaft | Prüfverfahren | Einheit | Wert |
|---|---|---|---|
| Viscosity at 23 °C, Rotation | DIN EN ISO 3219/A.3 | mPa*s | 1,250 ± 300 |
| NCO content | DIN EN ISO 11 909, Annex A | % | 21.8 ± 0.5 |
| HDI monomer content | DIN EN ISO 10283 | % | ≤ 0.25 |
| Name der Eigenschaft | Prüfverfahren | Einheit | Wert |
|---|---|---|---|
| Flash point | DIN 51 755 | °C | approx. 218 |
| Solids content | % | 100 | |
| Density at 20 °C | DIN 51 757 | g/cm3 | approx. 1.15 |
Downloads
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Technisches Datenblatt
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