CAS 28182-81-2 | HDI trimer Poly(Hexamethylene Diisocyanate)
Application: Polyurethane coatings hardener
Molecular Formula: C8H12N2O2
Molecular Weight: 168.2
Package: 20 kg / 220 kg Metal Drum
Worldwide Delivery
Made in China
- Worldwide Delivery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Introduction
Polyhexamethylene diisocyanate is a solvent free aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI), colorless to slightly yellowish clear liquid.
Application
It can be used as the hardener component for lightfast two-component polyurethane coatings with high resistance to chemicals and weathering, very good gloss retention and outstanding mechanical properties.
Preferred co-reactants are polyacrylates or polyester polyols.
The main applications for coatings used in automotive OEM, automotive refinishing, transportation, industrial finishing and plastics.
Specification of CAS 28182-81-2 | HDI trimer Poly(Hexamethylene Diisocyanate)
ITEMS | SPECIFICATION |
Equivalent weight | Approx. 193 |
Density at 25 ℃ | Approx. 1.16 g/ml |
Flash point | Approx. 158 ℃ |
| NCO Content | 21.8 ± 0.3% |
| Viscosity at 25 °C | 2500 ± 750 mPa· |
| Color value (Hazen) | ≤40 |
| Monomeric HDI | ≤0.20% |
Storage / Solubility
Storage in original container. Protect from moisture, heat and foreign material.
Polyhexamethylene diisocyanate is sensitive to moisture. Storage at higher temperatures will result in increasing of color and viscosity. Recommended storage temperature is -20 ~ 40 °C.
It can be thinned with esters, ketones and aromatic hydrocarbons such as ethyl acetate, butyl acetate, methoxypropylacetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, toluene, xylene, solvent naphtha 100 and mixtures thereof. Generally speaking, it has good compatibility with the solvents listed. However, the solutions formed must be tested for their storage stability. Only PU grade solvents should be used (max.0.05% water, absence of reactive groups such as hydroxyl or amino groups). Aliphatic hydrocarbons are unsuitable as solvents.
It is not recommended to thin to a lower solid content. Prolonged storage of a solution with a lower content may result in turbidity and sedimentation, even condensation.
Compatibility
Polyhexamethylene diisocyanate can be mixed with the following products: aliphatic polyisocyanates, polyester polyols, aromatic polyisocyanates and polyacrylates.
Related Articles of CAS 28182-81-2 | Poly(Hexamethylene Diisocyanate
Quasi-solid-state dye-sensitized solar cell from polyaniline integrated poly (hexamethylene diisocyanate tripolymer/polyethylene glycol) gel electrolyte
Q Li, H Chen, L Lin, P Li, Y Qin, M Li, B He… - Journal of Materials …, 2013 - pubs.rsc.org
Adhesion properties of poly (hexamethylene diisocyanate) obtained by organotin catalysis
S Cinnamon, S Freireich, A Zilkha - European Polymer Journal, 1980 - Elsevier
Hot Tags: CAS 28182-81-2 | HDI trimer Poly(Hexamethylene Diisocyanate), price, quotation, discount, in stock, for sale, Material Science
