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Jatorri berriztagarridun polioletan oinarritutako poliuretanoak: poliuretano termoplastikoak, espuma malgu eta zurrunak eta espuma nanokonpositeak

Authors: Ugarte Soraluce, Lorena;

Jatorri berriztagarridun polioletan oinarritutako poliuretanoak: poliuretano termoplastikoak, espuma malgu eta zurrunak eta espuma nanokonpositeak

Abstract

Lan honek poliuretano termoplastiko, espuma malgu nahiz zurrun eta poliuretanozko espuma nanokonpositeen sintesi eta karakterizazioa ditu ardatz, sintesirako jatorri berriztagarridun produktuak erabiliz. Konkretuki, biomasan oinarrituriko poliolak nahiz kate luzatzailea eta zelulosa nanokristalak erabili dira. Era honetan materialaren karbono berriztagarri kantitatea igoaz, sintetizaturiko poliuretano materialen jasangarritasuna hobetzen da. Poliuretano termoplastikoak % 100 karbono berriztagarridun poliola erabiliz sintetizatu dira, fase zurrun eta malguen proportzio ezberdinak eta izaera ezberdineko diisozianatoak erabiliz. Fase zurrun kantitatea eta diisozianatoaren linealtasuna igoaz fase banaketa handiagoko material zurrunagoak lortu dira. Espumen kasuan, funtzionalitate ezberdineko poliol nahiz poliol nahasteak erabiliz zurruntasun ezberdineko materialak prestatu dira, beti ere poliol nahastearen karbono berriztagarri kantitatea igotzea bilatuz. Poliuretanozko espuma nanokonpositeak prestatu dira zelulosa nanokristalak eta grafenoa erabiliz. Zelulosa nanokristalek espumaren nano/mikroegituran nahiz gelaxka egituran eragiten dutela ikusi da, propietate mekaniko nahiz biskoelastiko hobetudun materialak prestatzea ahalbidetuz. Grafenoaren erabileraren bidez espuma eroankorrak prestatu dira.

221 p.

Country
Spain
Keywords

materiales compuestos, análisis de macromoléculas, polyurethanes, poliuretanos, composites, polymer analysis

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
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