Blocked isocyanates as alternative curing agents for epoxy-polyurethane resins based on modified vegetable oils
Authors:
- A. Sienkiewicz,
- P. Czub
Abstract
Presented research shows the results of a study on the synthesis and mechanical properties of materials obtained by crosslinking polyaddition bio-products with blocked isocyanate based on toluene diisocyanate (TDI) as curing agent. Bio-resins, polyaddition product of epoxidized soybean oil and bisphenol A or hydroxylated soybean oil and low molecular weight epoxy resin, were synthesized via modern and pro-ecological modification of the synthesis of epoxies, namely, the epoxy fusion process. The obtained polyaddition product contains free epoxy and hydroxyl groups, which are suitable for the curing purposes. Material cured with Desmodur BL 1265/MPA/X in the presence of organometallic or amine catalyst (respectively: Dabco T9 and Dabco 33-LV) is characterized by mechanical properties better than the composition crosslinked without the catalyst. Additionally, there is a possibility of the synthesis of two-layer materials by chemical bonding of two different compositions via the previously unused oxirane groups of the cured ESBO_BPA or SMEG_EPR products.
- Record ID
- CUT4860a7f920e54e37995dd8bc91cebf2f
- Publication categories
- ;
- Author
- Journal series
- Express Polymer Letters, ISSN 1788-618X
- Issue year
- 2019
- Vol
- 13
- No
- 7
- Pages
- 642-655
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 654-655; Bibliografia (liczba pozycji) - 29; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, No. 7
- Keywords in English
- biopolymers, soybean oil, epoxy resin, epoxy fusion process, blocked isocyanates
- DOI
- DOI:10.3144/expresspolymlett.2019.54 Opening in a new tab
- URL
- http://www.expresspolymlett.com/ Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT4860a7f920e54e37995dd8bc91cebf2f/
- URN
urn:pkr-prod:CUT4860a7f920e54e37995dd8bc91cebf2f
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.