| Document ID (ISN) | 50180 |
| CIS number |
88-1259 |
| ISSN - Serial title |
0355-9831 - Työterveyslaitoksen tutkimuksia |
| Year |
1986 |
| Convention or series no. |
TTL 8-1986
|
| Author(s) |
Henriks-Eckerman M.L., Laijoki T. |
| Title |
Aliphatic polyamines and epoxy oligomers in cold-cured epoxy products |
| Original title |
Alifaattisten polyamiinien ja epoksioligomeerien sitoutuminen kylmäkovettumisessa [in Finnish] |
| Bibliographic information |
1986, Vol.4, No.1, p.37-40. Illus. 5 ref. |
| Abstract |
The aim of this study was to follow the cold cure of the epoxy resin-hardener system. The amount of unreacted epoxy oligomer of molecular weight (MW) 340 and aliphatic polyamine hardener (diethylenetriamine) was analysed as a function of curing time (5h to 2 months). Six different compounds were extracted into acetone and determined by liquid chromatography. The amount of unreacted compounds decreased rapidly within 1-2 days. After 2-3 days curing the amount of unreacted compounds decreased only slowly as a function of curing time. After 1 week of cure the products contained 0.02-12% unreacted oligomer and 0.01-1% unreacted polyamine. Results show that it is important to protect skin and lungs from the dust of freshly cured epoxy resin products in order to minimise sensitisation risks. |
| Descriptors (primary) |
epoxy resins; epoxy compounds; hardeners; amines |
| Descriptors (secondary) |
diethylenetriamine; bisphenol A diglycidyl ether polymer; dust |
| Document type |
D - Periodical articles |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Ethers
Ethylene oxide
|
