Vpliv modifikacije poliakrilatnega veziva na lastnosti utrjenega premaza

diplomsko delo

Simon Drlink (Author), Rok Marolt (Author), Ida Poljanšek (Reviewer), Marko Petrič (Mentor), Matjaž Pavlič (Co-mentor)

Abstract

Namen diplomskega dela je bil razvoj cenovno ugodnega poliakrilatnega veziva in lesnih premazov, ki imajo visoko zaščitno učinkovitost. Raziskovali smo tudi lastnosti obstoječih vodoodbojnih premazov, ki vsebujejo silane. Modificirane smole na osnovi poliakrilata bi predstavljale cenovno ugodnejše izhodišče za osnovno surovino za vezivo, ki bi bila kakovostnejša. Raziskovali smo modifikacijo nizkocenovnih surovin, ki vsebujejo silane, vključno z ovrednotenjem pogojev modifikacije ter kemičnih in reoloških sprememb silaniziranih smol. Dokazali smo, da je modifikacija poliakrilatnih smol s silani možna in da jih lahko uporabljamo kot veziva za izdelavo površinskih premazov, ki so dovolj kvalitetni za zaščito lesa v zunanjih pogojih. V okviru laboratorijskega dela smo izvedli meritve, na osnovi katerih smo primerjali testirane površinske premaze pred umetnim pospešenim staranjem in po njem. Vzorcem smo po standardnih in nestandardnih metodah določili izbrane lastnosti. Ugotovili smo, da je silaniziranje možno, najboljše lastnosti pa smo dosegli s smolo 98, s katero smo tudi izvedli večino meritev. Dokazali smo, da dodajanje silana v večini primerov pomeni boljšo kvaliteto premaza.

Keywords

poliakrilatno vezivo;modifikacija s silani;premazi za les;lastnosti premazov;umetno pospešeno staranje;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[S. Drlink, R. Marolt]
UDC:	674.07
COBISS:	2698377
Views:	379
Downloads:	102
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Effect of modification of a polyacrylate binder on properties of a cured coating
Secondary abstract:	The aim of this project was the development of a cheap polyacrylate binder and wood coatings with a high protective efficiency. We also researched the properties of existing water repellent coatings, which contain silanes. Modified resins, based on a polyacrylate, would represent a more affordable starting point for the basic raw material for a binder, which would be of a higher quality. We also studied modification of low-cost raw materials which contain silanes, including evaluation of modification conditions, as well as chemical and rheological changes of the silanised resins. We have shown that the modification of the polyacrylate resin with silanes is possible and that such resins could be used as binders for the production of surface coatings, which are of a sufficient quality to protect wood in outdoor conditions. In the laboratory we carried out the measurements, with the purpose of the comparison of the tested surface coatings before and after artificial accelerated ageing. The properties of the samples were determined in accordance with the standard and non-standard methods. We found out, that it is possible to silanise the resins. We achieved the best results with the resin 98, with the majority of measurements was carried out. We demonstrated that the addition of a silane in most cases leads to the higher quality of the coating.
Secondary keywords:	polyacrylate binder;modification with silanes;wood coatings;properties of coatings;artificial accelerated weathering;
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	IX, 47 f.
ID:	11928328