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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…
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Keywords:
epoxy resin;
flame retardation;
pir foams;
flame ... See more keywords
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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)…
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Keywords:
pir foams;
spectroscopy;
study allophanate;
quantitative study ... See more keywords