Back to Search
Start Over
Novel Cast Polyurethanes Obtained by Using Reactive Phosphorus-Containing Polyol: Synthesis, Thermal Analysis and Combustion Behaviors
- Source :
- Materials, Volume 14, Issue 11, Materials, Vol 14, Iss 2699, p 2699 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Phosphorus-containing polyol applications in polyurethane synthesis can prevent volatilization of flame retardants and their migration on the surface of a material. In this work, novel cast polyurethanes were prepared by a one-step method with the use of different amounts of phosphorus-containing polyol, 4,4′–diphenylmethane diisocyanate and 1,4-butanediol. The chemical structure, thermal, physicochemical and mechanical properties and flame resistance of the prepared materials were investigated. The results obtained for cast flame-retarded polyurethanes were compared with cast polyurethane synthesized with commonly known polyether polyol. It has been shown that with an increasing amount of phosphorus content to polyurethane’s chemical structure, an increased flame resistance and char yield were found during combustion tests. Phosphorus polyol worked in both the condensed (reduced heat and mass exchange) and gas phase (inhibition of flame propagation during burning). The obtained materials contained phosphorus polyol, indicating higher thermal stability in an oxidative environment than an inert atmosphere.
- Subjects :
- Technology
combustion behaviors
Materials science
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
Combustion
01 natural sciences
Article
chemistry.chemical_compound
Polyol
General Materials Science
Thermal stability
Char
Thermal analysis
Inert gas
Polyurethane
chemistry.chemical_classification
Microscopy
QC120-168.85
flame retardants
Phosphorus
QH201-278.5
cast polyurethanes
thermal properties
phosphorus-containing polyol
Engineering (General). Civil engineering (General)
021001 nanoscience & nanotechnology
TK1-9971
0104 chemical sciences
Descriptive and experimental mechanics
Chemical engineering
chemistry
Electrical engineering. Electronics. Nuclear engineering
TA1-2040
0210 nano-technology
Subjects
Details
- ISSN :
- 19961944
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....7f7416412bf4644505c04d36c793e5e2