Articles with "pir foams" as a keyword



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Effect of stoichiometry on the thermal stability and flame retardation of polyisocyanurate foams modified with epoxy resin

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Published in 2018 at "Polymer Degradation and Stability"

DOI: 10.1016/j.polymdegradstab.2018.02.015

Abstract: Abstract Epoxy resin modified polyisocyanurate (EP-PIR) foams were successfully prepared by the reaction of polymethylene polyphenylene isocyanate (PAPI) and diglycidyl ether of bisphenol-A (DGEBA). Thermogravimetric analysis coupled with infrared spectrometry (TGA-IR) was performed to investigate… read more here.

Keywords: epoxy resin; flame retardation; pir foams; flame ... See more keywords
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A quantitative study of the allophanate formation reaction in PIR foams by FT-IR spectroscopy

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Published in 2022 at "Journal of Cellular Plastics"

DOI: 10.1177/0021955x221141544

Abstract: The method for determining the concentrations of the main functional groups in rigid polyisocyanurate (PIR) foams was developed using ATR-FTIR spectroscopy. On the example of a series of rigid PIR foams of isocyanate indexes (II)… read more here.

Keywords: pir foams; spectroscopy; study allophanate; quantitative study ... See more keywords