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Method of neutralizing the corrosive surface of amine-cured epoxy resins
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1982 |
| Description | The corrosive alkaline surface layer of an epoxy resin product formed by the curing of the epoxy with an aliphatic amine is eliminated by first applying a non-solvent to remove most or all of the free unreacted amine and then applying a layer of a chemical reagent to neutralize the unused amine or amine functional groups by forming a substituted urea. The surface then may be rinsed with acetone and then with alcohol. The non-solvent may be an alcohol. The neutralizing chemical reagent is a mono-isocyanate or a mono-isothiocyanate. Preferred is an aromatic mono-isocyanate such as phenyl isocyanate, nitrophenyl isocyanate and naplthyl isocyanate. |
| File Size | 295953 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830025768 |
| Archival Resource Key | ark:/13960/t1zd2rd61 |
| Language | English |
| Publisher Date | 1982-12-07 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Isocyanates Amines Washing Aliphatic Compounds Alcohols Ph Factor Neutralizers Corrosion Epoxy Resins Curing Ureas Surface Layers Acetone Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |