Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/ijms23179725
Keywords
fly ash; thermal insulation materials; polyurethane composite; rigid polyurethane foam; circular economy
Funding
- Ministry of Science and Higher Education, Poland [grant AGH-UST] [16.16.110.663]
Ask authors/readers for more resources
The aim of this article is to compare the effects of two types of fly ash as fillers for rigid polyurethane foam, and analyze the foaming process, physical properties, morphologies and thermal degradation. The research shows that fly ash enhances foam synthesis without deteriorating the physical parameters of polyurethane foam.
The aim of the article is to compare two types of fly ash (from the fluidized and pulverized coal combustion process) as a filler for rigid polyurethane foam. Pulverized fly ash (PFA) is widely used in building materials, while fluidized fly ash (FFA) is not currently recycled, but landfilled. The produced rigid polyurethane foams were reinforced with 5 and 10% by weight addition of fly ash from two different types of boilers. The foaming process, physical properties, morphologies and thermal degradation were subject to comparative analysis. The research indicated that fly ash intensifies the reactions of foam synthesis, most commonly, polyurethane (PU) foam with an addition of 10% PFA. What is interesting is that both ashes can be used in PU foam technology as they do not cause deterioration of the physical parameters. As shown, the addition of filler affects the morphology and impairs the brittleness. Additionally, the use of fly ash from coal combustion in the technology of polyurethane materials complies with the guidelines of the circular economy stated in the European Union legislation. Partial replacement of petrochemical components with waste filler also reduces the total energy consumption in the production of PU composites.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available