Sinteza cenovno ugodne nenasičene poliestrske smole za abrazijsko odporne poliestrske kompozite

Poles, Peter (author), Šebenik, Urška (mentor)

V tem magistrskem delu je bila raziskana možnost sintetiziranja cenovno ugodne nenasičene poliestrske smole z uporabo diciklopentadiena prek Diels-Alderjeve reakcije za abrazijsko odporne poliestrske kompozite. Ta smola je bila primerjana s smolo s tetrahidroftalnim anhidridom in smolo z izoftalno kislino. Smole so bile okaraterizirane s FT-IR in NMR spektroskopijo. Termične lastnosti so bile določene z DSC-analizo. Mehanske lastnosti so bile določene s tritočkovnim upogibnim testom in HDT-testom. Abrazijska odpornosti je bila testirana s Taber abraserjem. Ugotovljeno je bilo, da je rezultat abrazijske odpornosti smole s diciklopentadienom boljši od smole z izoftalno kislino, a slabši od rezultata smole s tetrahidroftalnim anhidridom. Z ekonomskega vidika je smola z diciklopentadienom cenejša od smole s tetrahidroftalnim anhidridom zaradi cene surovin. Proces sinteze se bistveno ne razlikuje, zato ne vpliva na ceno končnega proizvoda.

• Language: Slovenian
• Keywords: nenasičena poliestrska smola, abrazija, kompozit, cena
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Year: 2020
• PID: 20.500.12556/RUL-122895
• COBISS.SI-ID: 43444483
• Publication date in RUL: 15.12.2020

Secondary language

• Language: English
• Title: Synthesis of a cost efficient unsaturated polyester resin for abrasion resistance polyester composites

Abstract

The synthesis of a cost efficient unsaturated polyester resin via Diels Alder reaction with dicyclopentadiene for abrasion resistant composites was examined. Resin with dicyclopentadiene was compared to a resin with tethrahydrophthalic anhydride and a resin with isophthalic acid. Resins were characterised by FT-IR and NMR spectroscopy. Thermal properties were determined by DSC analysis. Mechanical properties were determined by three-point flexular test and HDT test. Abrasion resistance was tested by Taber abrasion test. Results suggested that the resin with dicyclopentadiene has better abrasion resistance in comparison with the resin with isophthalic acid. However, it has worse abrasion resistance than the resin with tethrahydrophthalic anhydride. From economic point of view it can be stated that the resin with dicyclopentadiene is cheaper than the resin with tethrahydrophthalic anhydride. This is due to lower prices of raw materials. Process of synthesis of the two resins is very similar and thus does not affect the price of the resin.

• Keywords: Unsaturated polyester resin, abrasion, composite, price