Abstract
As a result of the determination of the chemical, physical-chemical and physical and mechanical properties of individual styrene-acrylic polymers and their compositions with crosslinking agents, it has been found that the formation of a strong three-dimensional spatial structure of films provides the styrene-acrylic polymer Lacrytex 430. It is possible to use this polymer without crosslinking agents. The additional introduction of Laproxide and Appretta ECO into the composition lowers the degree of structuring of polymer films. It was established that for the Lacrytex 640 preparation, which has a low structuring index, the introduction of the glycidyl ester of the Laproxide 703 trade mark leads to an increase in the degree of crosslinking to 7.9 % and, as a result, to an increase in the resistance to organic solvents, to a reduction of hydrolytic degradation at high temperatures and to an increase in the physical-mechanical indicators. Taking into account the need to obtain low-content compositions that provide a complex of necessary properties to the final product, the use of individual styrene-acrylic polymer Lacrytex 430 and Lacrytex 640/Laproxide 703 composition, which provides obtaining elastic coatings, is actual and economically sound.
Highlights
There is at present a rapid growth in consumption of packaging made from combined film materials
Combined film materials are divided into the following three groups: 1) multilayer films composed of polymers only; 2) metallized multilayer films and multilayer films made of aluminum foil; 3) films made on a textile, paper or cardboard base [1]
We should not mix up combined packaging and combined packaging materials
Summary
There is at present a rapid growth in consumption (and, in production) of packaging made from combined film materials. Such packaging fulfills its functional purpose ‒ preserves quality and quantity of packaged goods, as well as contributes to their fast selling. Combined material is a single, non-separable system with different nature of components. A market of combined film materials is practically non-existent in Ukraine while materials produced with rubber and monopolymeric coating (mainly polyvinylchloride) do not meet modern requirements to product quality. The necessity to resolve problems of supplying Ukrainian market with products of its own production is intensified by an inadequate assortment of component compositions for the creation of polymeric coatings on a surface of packaging materials. Studies aimed at the development of new economically and environmentally beneficial polymeric coatings for textile packaging materials are relevant
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