Polymer MDI
Delivery term:The date of payment from buyers deliver within days-
Price:
Negotiable
- minimum:
- Total supply:
-
Delivery term:
The date of payment from buyers deliver within days
-
seat:
Jiangsu
-
Validity to:
Long-term effective
-
Last update:
2021-07-18 23:35
-
Browse the number:
463
+
- Contactaixin:
Contactaixin:
mcnjkj(Mr.)
-
Email:
telephone:
phone:
-
Area:
Jiangsu
Address:Room 1903, Floor 19, Building 1, No.2 XingZhi Road, Nanjing Free Trade Zone, Jiangsu, China.
- Website:
+
Polymeric MDI, also known as crude MDI or polyurethane black material, is a mixture containing a certain proportion of pure MDI and polyphenyl polymethylene polyisocyanate. It is used to produce polyurethane foam insulation materials, floor materials, various adhesives and other polyurethane products.
Technical Specification
ITEM |
STANDARD |
Appearance |
Dark brown liquid |
NCO % |
30.5~32 |
Viscosity (25 ℃, mPas) |
170 ~ 250 |
Gravity (25 ℃) |
1.23 |
Vapor pressure |
<0.01 |
Flash point |
>200 ℃ |
Product Information
In the polyurethane rigid ester foam raw material system, the isocyanate component is commonly known as polyurethane black material; it is a mixture containing a certain amount of higher energy isocyanate and diphenylmethane diisocyanate (MDI), with a functionality of about 2.6 to 2.7, at room temperature It is a dark brown liquid with a higher viscosity than polyurethane white material (combined polyether). Polyurethane black material and white material are stirred and mixed in proportion, and then polymerized to form rigid polyurethane foam with independent closed-cell structure. It is an ideal organic low-temperature thermal insulation material with low thermal conductivity, energy saving, shockproof, and strong adaptability. specialty. It can be prefabricated, and it can also be sprayed and cast on site. It is widely used in oil refineries, chemical plants, ethylene chemical industry, cold storage, single refrigeration central air-conditioning, refrigerators and thermal insulation in the construction industry. With the promotion of the country in the field of building energy conservation, polyurethane foam insulation system has been widely used in the domestic insulation field due to its good insulation performance, rapid construction, and reliable performance.
Packing & Shipping
 |
 |
Our Service
-We listen patiently to your concerns and needs. Actively help you solve your concerns, give adjustment plans, and take the initiative to propose perfect suggestions to give you the best service experience.
-We have a professional post-service team to solve and process your orders.
-We provide 24-hour online after-sales service to solve your order concerns in a timely manner.
http://www.gvchem.com/
