Bright Yellow Color Polyurethane Chain Extender MOCA
Bright Yellow Color Polyurethane Chain Extender MOCA is a high-performance aromatic diamine chain extender and curing agent designed for polyurethane systems with exceptional color stability and thermal resistance.
Product Attributes
| Attribute |
Value |
| Product name |
Bright Yellow Color Polyurethane Chain Extender MOCA |
| Appearance |
Yellow Flake |
| Storage |
Be airtight in a dry area and away from sunlight |
| Melting point |
97℃ |
| Molecular Weight |
267.16 |
Chemical Information
| Chemical Name |
3,3' dichloro 4,4' diaminodiphenylmethane |
| Molecular Formula |
C13H12N2Cl2 |
| Molecular Weight |
267.16 |
Specifications
| Parameter |
Specification |
| Appearance |
Pale yellow granule |
| Melting point |
≥97 |
| Moisture |
< 0.30 |
| Solid density (24 ℃)g*cm³ |
1.44 |
| Liquid density (107 ℃)g* ml⁻¹ |
1.26 |
| Amine equivalent |
131-136 |
| Free amine, % |
< 1.00 |
| Color (Gardner) |
< 4 |
| Aceton insoluble matter, % |
< 0.04 |
| Hygroscopicity |
None |
| Storage |
Be airtight in a dry area and away from sunlight |
Solubility
Easily soluble in Aceton DMF, DMSO, MEK and THF. Soluble in ethanol, and benzene. Insoluble in water.
Safety
LD50 (rats) 5000 mg/kg. Wear mask, gloves and goggles when handling.
Advantages
MOCA-HR features outstanding high-temperature resistance and color stability. When repeatedly heated to temperatures as high as 150 °C, its molten state stays pale yellow, clear and transparent with no visible changes in appearance.
Applications
MOCA-HR functions as an effective aromatic diamine chain extender and curing agent in polyurethane systems. It is applicable to the fabrication of multiple light-colored cast polyurethane elastomer components with casting machines, and can also be used as a stable curing agent for epoxy resins.
Packaging
50kg net weight in carton drum with black polyethylene liner.