Biologically degradable polymeric composition with improved qualities
Biologically degradable composition comprises 5 to 95 % by weight of polyhydroxyalcanoate and 95 to 5 % by weight of polylactic acid or lactide, 2 to 67 parts of plastificator or mixture of plastificator in 100 parts of the polymeric composition. There is described a composition containing 0.05 to 5...
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Sprache: | eng ; slo |
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Zusammenfassung: | Biologically degradable composition comprises 5 to 95 % by weight of polyhydroxyalcanoate and 95 to 5 % by weight of polylactic acid or lactide, 2 to 67 parts of plastificator or mixture of plastificator in 100 parts of the polymeric composition. There is described a composition containing 0.05 to 5 % by weight of reactive additive too. Esters of citric acid, glycine, phosphoric acid, sebacic acid and other liquid organic low molecular polyesters are used as plastificators. The reactive additive is selected from group of chemicals comprising for example acrylic polymers, epoxidated acrylic polymers, diisocyanates and derivatives thereof, epoxidated oils, oligomeric copolymers of various monomers with glycidyl methacrylate or acrylate and others.
Biologicky degradovateľná kompozícia obsahuje 5 až 95 hmotn. % polyhydroxyalkanoátu a 95 až 5 hmotn. % kyseliny polymliečnej alebo laktidu, 2 až 67 dielov plastifikátora alebo zmesi plastifikátorov na 100 dielov polymérnej zmesi. Opísaná je aj kompozícia obsahujúca 0,05 až 5 hmotn. % reaktívneho aditíva. Ako plastifikátory sa použijú estery kyseliny citrónovej, estery glycerínu, estery kyseliny fosforečnej, estery kyseliny sebakovej a iné kvapalné organické nízkomolekulové polyestery. Reaktívne aditívum je vybrané zo skupiny chemikálií, ako sú napríklad akrylové polyméry, epoxidované akrylové polyméry, diizokyanáty a ich deriváty, epoxidované oleje, oligomérne kopolyméry rôznych monomérov s glycidylmetakrylátom alebo akrylátom a ďalšie. |
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