2020 (3) 3
https://doi.org/10.15407/polymerj.42.03.183
INVESTIGATION OF THE PROPERTIES OF POLYMER COATINGS BASED ON MELAMINE ALKYD RESIN AND OLIGOMERIC URETHANE MALEATES
N.V. Hudzenko,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine
E-mail: n.hudzenko@gmail.com
ORCID: 0000-0003-2363-4527
V.G. Sisyuk,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine
E-mail: sisyk.valentina@gmail.com
ORCID: 0000-0003-4371-337X
V.K. Grishchenko,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine
E-mail: oligomer8@gmail.com
ORCID: 0000-0002-4951-936Х
N.G. Ugro,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine
ORCID: 0000-0003-4729-4512
L.I. Zel,
Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine
ORCID: 0000-0002-0663-8262
Polym. J., 2020, 42, no. 3: 183-190.
Section: Polymer synthesis.
Language: Ukrainian.
Abstract:
To form a network polymer structure of melamine-formaldehyde alkyd paints and varnishes (APV) oligomeric film formers modified with vegetable oils or their fatty acids, alkyd resins and varnishes, as well as materials based on amino formaldehyde resins plasticized with polyethers (alkyd resins) are used. The main disadvantage of APV is the long drying time in the air (it takes more than a day to dry one layer), unsatisfactory decorative and protective performance of coatings, their unstable resistance to atmospheric and environmental influences.
Melamine alkyd APV can withstand longer and aggressive weathering, but the process of hardening occurs at high temperatures with significant energy consumption, the process is time consuming and unsuitable for modern technologies for assembling devices, machines, engineering structures in combination with different materials. The aim of our research was to improve existing APV based on amino formaldehyde resins and creating new film formers using oligomeric cyclic carbonates and oligomeric amines in order to improve the properties of materials. The modification of melamine-alkyd paints and varnishes with compounds contained high content of polar groups and capable to form chemical and physical bonds with active groups of functionalized plant oligomers is a promising way to improve the properties.
A three-step method of synthesis urethane-containing modifier based on carbonized vegetable oil, aminoethyl piperazine, maleic anhydride and melamine alkyd resin was developed to obtain new polymer coatings. The synthesized modifier – amido urethane maleate based on vegetable oil is characterized by the presence of numerous active groups that interact with melamine alkyd resin K-421 and PF-060 to form a branched polymer structure that is stable during storage.
Modified APV samples with 10% and 15% of oligoamidurethane maleate have been developed, which are characterized by enhanced physico-mechanical, adhesive and processing properties and can be recommended for practical application in various coating technologies. The structural features of the initial reagents and the obtained products were studied by FTIR spectroscopy.
Key words: block copolymers, oligomeric photoinitiators, сastor oil, acrylate, vinylpyrrolidone, radical photopolymerization.
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