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| Place of Origin: | China |
| Brand Name: | Wanhua |
| Certification: | ISO90001:2008 |
| Model Number: | wannate PM-400 |
| Minimum Order Quantity: | 20mt |
|---|---|
| Price: | Contact us for latest price |
| Packaging Details: | 250KG/DRUM |
| Delivery Time: | around three weeks after confirming the order |
| Payment Terms: | TT; LC at sight |
| Supply Ability: | 1000tons per month |
| NCO Content: | 30.5-32% | Viscosity (25℃): | 350-500mPas |
|---|---|---|---|
| Packaging: | 250KG/DRUM | Application: | Used In The Production Of Rigid PU Foam And Polyisocyanurate Foams |
| Appearance: | Brown Liquid At Room Temperature | Product Name: | Wannate PM-400 Polymeric MDI Used In The Production Of Rigid PU Foam |
Wannate PM-400 Polymeric MDI Used in The Production Of Rigid PU Foam
1. Product Introduction
WANNATE® PM-400 is high functionality, high viscosity isocyanate which has a functionality of 2.8~2.9. WANNATE® PM-400 can improve cell homogeneity and dimensional stability of foams and the compressive strength vertical to the foaming direction. The flame retardancy of polyurethane and polyisocyanurate foams also shows some improvement.
2. Product Application
WANNATE® PM-400 can be used in the production of rigid PU foam and polyisocyanurate foams; particularly fit for continuous production of laminated polyisocyanurate slabstock foams.
3. Physical and Chemical Properties
|
Item |
Index |
|
Appearance |
Brown liquid |
|
Viscosity (25℃), mPas |
350-500 |
|
NCO content, % |
30.5-32.0 |
|
Specific gravity at 25℃ |
1.220-1.250 |
|
Acidity (as HCL) , % |
＜0.05 |
*These values provide general information and are not part of the product specification.
4. Packing Specifications
210L iron drum; 250kg/drum
5. Storage
Since WANNATE® PM-400 is a reactive chemical, reaction with atmospheric moisture happens easily and leads to the formation of insoluble ureas and carbon dioxide gas, which can result in pressure build-up in closed containers and viscosity increase of the product. Containers must therefore be absolutely dry and carefully sealed after congested with nitrogen.
Containers of WANNATE® PM-400 should be kept properly closed and stored indoors at ambient temperature (15~35ºC) in a well-ventilated area. Storage at low temperature (below 0ºC) may lead to some crystallization; this material must, therefore, be protected from frost. If crystallization does occur, the material should be heated to 70-80ºC to melt it out, and should then be thoroughly agitated before use.
Extended storage at temperatures above 50ºC is not recommended to prevent from the formation of insoluble solids and viscosity increase.
6. Shelf Life
Under recommended storage conditions, the shelf life of WANNATE® PM-400 is one year since the date of production.
