2018 (3) 3
https://doi.org/10.15407/polymerj.40.03.160
Development and investigation of photopolymerization nanocomposites with controlled properties for technological processes of polygraphy
V.G. Sisyk, V.M. Granchak, P.M. Daviskiba, N.G.Ugro, L.I. Zel‘
1Institute of Macromolecular Chemistry NAS of Ukraine
Ukraine, 02160 Kyiv-160, Kharkiv highway, 48, E-mail: sisyk.valentina@gmail.com
2L. V. Pisarzhevskii Institute of Physical Chemistry NAS of Ukraine
31, Nauki Ave., Kyiv, 03028, Ukraine
Polym. J., 2018, 40, no. 3: 160-165
Section: Structure and properties.
Language: Ukrainian.
Abstract:
The development of organosilicon oligomeric modifiers, which are used to create photopolymerization nanocomposite materials (PPC), has been carried out. The features of industrial methyl-functional silane, as well as the synthesized epoxy-aminosiloxane oligomer, have been studied. The synthesis process was monitored and investigated by IR spectroscopy. The passage of the oligomeric product formation reaction was evaluated by changing of the epoxy groups characteristic bands and the formation of hydroxyl groups characteristic bands. The formation of the final product is characterized by the disappearance of epoxy groups and the increase of hydroxyl groups.
Composite materials were constructed based on oligourethane acrylate, which is a product of the interaction of isophorone diisocyanate, trimethylolpropane, laprol and monomethacrylic ester of ethylene glycol, followed by the addition of reactive oligoether acrylates, photoinitiators, photosensitizers and organosilicon modifiers. The modification of the compositions have provided an opportunity to regulate the photochemical and physico-mechanical properties in accordance with the technology of application in the printing industry, allowed to replace imported materials, expand the scope of materials application. The main technological and operational characteristics of PPC and its coatings were explored, the optimum concentration of modifiers in the constitution of the compositions was determined. The performed work provides the application of modified nanocomposites in various technological processes for the production of labels, packaging, photo-adhesives, printing varnishes, stencil forms, photopolymer laser engraving stamps, relief-dot Braille images. Production tests at Kyiv and Lviv printing enterprises were conducted.
Key words: photopolymerization, oligomeric modifiers, photo-adhesives, nanocomposite, organosilicon, polymer matrix, adhesion.
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