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Modifiche chimiche dei compositi di polipropilene/chitosano

Modifiche chimiche dei compositi di polipropilene/chitosano

Faisal Tanjung

98,62 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química industrial
ISBN:
9786208859596
98,62 €
IVA incluido
Disponible
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La produzione di materiali ecocompatibili è innescata principalmente dal problema ambientale dei compositi a base di petrolio e dalla necessità di ottenere materiali con le proprietà desiderate. Una delle strategie più efficaci per migliorare le proprietà e la biodegradabilità dei materiali compositi è la sostituzione del riempimento sintetico con fibre naturali. Il chitosano è una fibra naturale che possiede eccellenti proprietà meccaniche e termiche. È stato utilizzato come rinforzo nei compositi plastici, anche se non è così diffuso come le fibre sintetiche. In generale, l’incompatibilità tra matrice polimerica e fibra è uno dei principali inconvenienti nella produzione di compositi polimerici, a causa della diversa polarità tra fibre naturali e matrici polimeriche. Per mitigare il problema dell’adesione, si ottiene un miglioramento dell’adesione dell’interfaccia matrice-riempitivo attraverso la modifica chimica, per mezzo di un trattamento superficiale del riempitivo o di un agente di accoppiamento.

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