Poliurea zaštitni premazi

undergraduate thesis

• Title (english): Polyurea coatings
• Author: Ivan-Pavao Boras
• Mentor: Ivan Stojanović (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-03-02, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Završni rad se sastoji od dva dijela, od teorijskog i eksperimentalnog rada.
U teorijskom dijelu je obrađena korozija i uzroci korozije. Pobliže su opisane komponente premaza, načine zaštita površine i vrste premaza s obzirom na vezivo. Dodatno se spominju procesi nanošenja premaza i njihova kemijska struktura. Detaljnije je opisan poliurea zaštitni premaz, njegova kemijska struktura i mehanička svojstva. Poliurea premazi svoju svestranost dokazuju kroz široku primjenu u modernom gospodarstvu.

U eksperimentalnom djelu provedena su ispitivanja debljine premaza, ispitivanja u slanoj i vlažnoj komori, ispitivanja prionjivosti i ispitivanje tvrdoće. Ispitivana je postojanost na korozijske uvjete C3-M. Cilj ispitivanja bio je utvrditi otpornost poliurea zaštitnog premaza na korozijsko djelovanje. Ispitivanja su se provela na 3 vrste uzoraka, epoksi temelj i poliuretan, poliurea, epoksi temelj i poliurea, kako bi usporedili njihova svojstva.

Abstract (english)

The graduet thesis consists of two parts, theoretical and experimental.
The theoretical part deals with corrosion and the causes of corrosion. The components of the coating, the methods of surface protection and the types of coatings with respect to the binder are described in more detail. Additionally, coating processes and their chemical structure are mentioned. Polyurea protective coating, its chemical structure and mechanical properties are described in more detail. Polyurea coatings prove their versatility through wide application in the modern economy.

In the experimental part, coating thickness tests, salt and wet chamber tests, adhesion tests and hardness tests were performed. Resistance to C3-M corrosion conditions was tested. The aim of the study was to determine the resistance of polyurea protective coating to corrosion. Tests were performed on 3 types of samples, epoxy foundation and polyurethane, polyurea, epoxy foundation and polyurea, to compare their properties.

• Keywords: poliurea; zaštitni premazi; korozija; zaštita od korozije
• Keywords (english): polyurea; protective coatings; corrosion; corrosion protection
• Language: croatian
• URN:NBN: urn:nbn:hr:235:586549
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-02-27 13:51:18