Učinkovitost premazov za lesena plovila proti usidranju morskih organizmov

diplomski projekt

Jan Adamek (Author), Franc Pohleven (Reviewer), Marko Petrič (Mentor), Miha Humar (Co-mentor)

Abstract

Na trgu se pojavlja različna paleta novih, okolju prijaznejših premazov za zaščito plovil proti obraščanju morskih organizmov (antifouling premazi), pri čemer se pojavlja vprašanje o njihovi učinkovitosti oz. skladnosti le-teh z zagotovili proizvajalcev. Za zaščito trupov plovil so že dolgo zelo priljubljeni in močno razširjeni klasični antifouling premazi, ki vsebujejo biocide. V zadnjem času pa na trg prodirajo tudi zaščitni premazi proti obraščanju morskih organizmov z dodanimi nanodelci. Proučevali smo, katera vrsta premazov ima boljše zaščitne lastnosti ter uporaba katerih biocidov je v mediteranskem morju, glede na prisotne organizme, primernejša. Potopitev vzorcev je potekala v Luki Koper in zajemala izpostavitev nezaščitenih vzorcev naravno odpornejših lesnih vrst kot tudi impregnirane in premazane beljave rdečega bora (Pinus sylvestris). Uporabili smo biocide; zaščitna sredstva in sredstva proti pripenjanju organizmov v vodi z različnimi mehanizmi delovanja. Po obdelavi podatkov smo izbrali najprimernejša zaščitna sredstva za lesena plovila v našem morju. Za izbiro najučinkovitejšega sta se izkazala mehki oziroma klasični in trdi tip premaza, medtem ko nanopremaz ni pokazal zaščitne funkcije. Nezaščiten les je v morju propadel že po manj kot letu dni. Globinsko zaščiten s Silvanolinom pa je nad mejno koncentracijo cu > 0,31 % dobro ščitil les pred morskimi škodljivci in deloval tudi kot sredstvo proti pripenjanju morskih organizmov v vodi.

Keywords

zaščita lesa;premaz proti obraščanju;morski organizmi;

Data

Language:	Slovenian
Year of publishing:	2012
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[J. Adamek]
UDC:	630*841.2
COBISS:	2049417
Views:	1130
Downloads:	237
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Protective effectiveness of antifouling coatings for wooden boats
Secondary abstract:	While nowadays the market offers different types of antifouling coatings, the question of their performance in accordance with the manufacturersʼ statements or guaranties arises. As an alternative to polluting biocide based coatings, other environmentally friendly antifouling coatings have been developed, based on copper and polishing copolymers, as also on the controlled depletion systems and nano technology. To define the type of antifouling coating exhibiting better effectiveness against fouling organisms in the Mediterranean Sea, the selected naturally durable wood species were exposed to sea water in the Port of Koper, including impregnated and coated specimens of Scots pine wood (Pinus sylvestris), treated with different types of antifouling coatings. On the basis of the processed data, the most effective ones for preservation of wooden boats in our sea were selected, namely the soft and the hard type of antifouling coatings. On the other hand, the nano-based formulation did not protect wood from fouling. The untreated wood was completely degraded after less than one year of exposure, while the pine wood treated with the Silvanolin preservative in concentrations of biocide greater than cu > 0,31 % did not show any signs of biological damage and it could be also used as an antifouling.
Secondary keywords:	wood protection;antifouling coating;marine organisms;
Type (COBISS):	Diploma project paper
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	VIII, 50 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest products and their utilization;gozdni proizvodi in njihova uporaba;
ID:	22215