: 198-205
Lviv Polytechnic National University
Lviv Polytechnic National University
Lviv Polytechnic National University
Lviv Polytechnic National University
Lviv Polytechnic National University

The physical modification of poly(lactiс acid) materials suitable for use in the form of films for the packaging industry and paper lamination has been studied. Modification of poly(lactiс acids) of different degrees of crystallinity with glycerol was performed. The peculiarities of the formation of film materials on the basis of poly(lactiс acids) and their mixtures with glycerin are investigated, the choice of the optimal solvent (chloroform) for the formation of films by irrigation is substantiated and carried out. Concentration and temperature-time characteristics of formation of modified poly(lactiс acid) films are determined. On the basis of the performed researches the main stages of manufacturing of modified poly(lactiс acid) films are substantiated and their physical and mechanical properties are investigated. 

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