Number of the records: 1
Development and characterization of “green open-cell polyurethane foams” with reduced flammability
- 1.
SYSNO ASEP 0535540 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Development and characterization of “green open-cell polyurethane foams” with reduced flammability Author(s) Kurańska, M. (PL)
Beneš, Hynek (UMCH-V) RID, ORCID
Salasińska, K. (PL)
Prociak, A. (PL)
Malewska, E. (PL)
Polaczek, K. (PL)Article number 5459 Source Title Materials. - : MDPI
Roč. 13, č. 23 (2020), s. 1-17Number of pages 17 s. Language eng - English Country CH - Switzerland Keywords open-cell polyurethane foams ; bio-polyol ; spray foams Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GA19-08549S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UMCH-V - RVO:61389013 UT WOS 000597470100001 EID SCOPUS 85097004823 DOI 10.3390/ma13235459 Annotation This work presents the cell structure and selected properties of polyurethane (PUR) foams, based on two types of hydroxylated used cooking oil and additionally modified with three different flame retardants. Bio-polyols from municipal waste oil with different chemical structures were obtained by transesterification with triethanolamine (UCO_TEA) and diethylene glycol (UCO_DEG). Next, these bio-polyols were used to prepare open-cell polyurethane foams of very low apparent densities for thermal insulation applications. In order to obtain foams with reduced flammability, the PUR systems were modified with different amounts (10–30 parts per hundred polyol by weight—php) of flame retardants: TCPP (tris(1-chloro-2-propyl)phosphate), TEP (triethyl phosphate), and DMPP (dimethyl propylphosphonate). The flame retardants caused a decrease of the PUR formulations reactivity. The apparent densities of all the foams were comparable in the range 12–15 kg/m3. The lowest coefficients of thermal conductivity were measured for the open-cell PUR foams modified with DMPP. The lowest values of heat release rate were found for the foams based on the UCO_TEA and UCO_DEG bio-polyols that were modified with 30 php of DMPP. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2021 Electronic address https://www.mdpi.com/1996-1944/13/23/5459
Number of the records: 1