doktorska disertacija
Miha Steinbücher (Avtor), Peter Venturini (Mentor), Željko Knez (Komentor)

Povzetek

Sončna toplotna energija se v južni Evropi in Sredozemlju kaže kot najbolj sprejemljiv vir obnovljive energije. Za njeno množično uporabo je potrebno razviti visoko zmogljive, trajne in cenovno ugodne materiale. To delo obravnava organske polimerne premaze, namenjene sončnim toplotnim zbiralnikom, ki izpolnjujejo zgoraj naštete pogoje. Črne od debeline odvisno spektralno selektivne premaze (thickness sensitive spectrally selective (TSSS)) in od debeline neodvisno spektralno selektivne premaze (thickness insensitive spectrally selective (TISS)) smo zasnovali na tehnologiji silanskega oplaščenja anorganskih pigmentov. Razvili in optimizirali smo TSSS premaz, ki izpolnjuje vse zastavljene zahteve in ga je mogoče nanašati z uveljavljenimi industrijskimi metodami nanosa premazov. Njegovo trajnost je potrdil neodvisni zunanji laboratorij. Povezali smo površinske lastnosti utrjenega filma premaza z njegovo selektivnostjo in tako nadgradili predhodno vedenje o spektralno selektivnih premazih. Optimizirali smo črne in barvne TISS premaze. Pokazali smo povezavo med kemizmom poliola v poliuretanskih spektralno selektivnih premazih in njihovo selektivnostjo. V TISS premazih smo kot prvi uporabili organske pigmente za dosego višje barvne jakosti. Razvili smo fluoropolimerne TSSS premaze. Fluoropoliuretanski TSSS premazi so zaradi visoke selektivnosti in nižje temperaturne odpornosti primerni le za nišne aplikacije, kot so fasadni sončni toplotni sprejemniki. V te namene smo, spet kot prvi z uporabo organskih pigmentov v TSSS premazih, razvili visoko zmogljive modre premaze. Pokazali smo možnost razvoja termoplastičnih fluoropolimernih TSSS premazov. Z uporabo silansko oplaščenih črnih in organskih modrih pigmentov ter posledično optimizacijo faktorja polnjenja premaza smo razvili visoko zmogljive in trajne modre silikonpoliestrske TSSS premaze. Razviti premazi, ki so primerni za industrijsko uporabo, omogočajo izdelavo cenovno ugodnih, zmogljivih in trajnih sončnih toplotnih zbiralnikov. Znanje, pridobljeno pri njihovem razvoju, pa omogoča razlago predhodno neznanih ali nepojasnjenih lastnosti spektralno selektivnih premazov.

Ključne besede

spektralna selektivnost;premazi;pigmenti;veziva;sončni toplotni zbiralniki;toplotne tehnologije;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.08 - Doktorska disertacija
Organizacija: UM FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Založnik: [M. Steinbücher]
UDK: 667.61:667.622.3(043.3)
COBISS: 18824982 Povezava se bo odprla v novem oknu
Št. ogledov: 1733
Št. prenosov: 247
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Industrially applicable organic polymeric spectrally selective coatings for solar thermal collectors
Sekundarni povzetek: Solar thermal technology is the most likely source of renewable energy in Southern Europe and the Mediterranean. To enable its mass use, new high-performance, durable and economical materials should be developed. This work deals with organic polymeric coatings intended for solar thermal collectors that fulfill the above criteria. Black thickness sensitive spectrally selective (TSSS) and thickness insensitive spectrally selective (TISS) coatings were based on the technology of silane pigment treatment. We developed and optimized a TSSS coating that fulfills all set demands and can be applied with established industrial methods of paint application. Its durability was confirmed by an independent laboratory. We linked the surface properties of the coating's cured film to its selectivity and thus improved upon prior knowledge on spectrally selective coatings. Black and non-black TISS coatings were optimized. We pointed to a correlation between spectral selectivity of polyurethane spectrally selective coatings and the chemism of polyol used in its preparation. To increase the chroma value of TISS coatings an organic pigment was used for the first time in a TISS coatings successfully. Fluoropolymeric TSSS coatings were developed. Fluoropolyurethanic TSSS coatings are only suitable for niche applications such as facade collectors due to their high selectivity and low thermal durability. For such applications we developed high performance blue coatings based on organic pigments, the first use of an organic pigment in a TSSS coating. We demonstrated the possibility of development of thermoplastic fluoropolymeric TSSS coatings. By the use of silane treated black pigment and blue organic pigments and by subsequent fill factor optimization we developed high-performing and durable silicon polyester TSSS coatings. The coatings we developed are suitable for industrial use. They allow for production of economical, high-performing and durable solar thermal collectors. The knowledge gained in their development offers explanation of previously unknown or unexplained properties of spectrally selective coatings
Sekundarne ključne besede: spectral selectivity;coating;pigments;binders;solar thermal collerctor;thermal technologies;Premazi;Disertacije;
URN: URN:SI:UM:
Vrsta dela (COBISS): Doktorsko delo/naloga
Komentar na gradivo: Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Strani: XV, 148 str.
ID: 8772698