Modifikacija polimerov s fizikalnimi metodami : tematski sklop : poročilo o delu za leto 1986. D. 1, Proizvodnja filmov iz modificiranih polietilenov nizke gostote
Musil, Vojko
Raziskovali smo barvne in mehanske lastnosti cevnih filmov iz LDPE, modificiranih z različnimi barvnimi koncentrati ter z različnimi količinami kopolimerov etilenvinilacetata (EVA). Vzorce smo ...pripravili v Brabenderjevem Plasticord sistemu z enoto za pihanje. Izvajali smo spektrofotometrične meritve beline in na podlagi dobljenih vrednsti za svetlost, a, b, celokupno barvno razliko in kontrastni indeks, ugotavljali njihovo ujemanje s primerjalnim vzorcem. Rezultati potrjujejo primernost izbire receptur. Dodatek EVA k LDPE in barvnemu koncentratu vpliva na zvišanje pretržne trdnosti in raztezka pri pretrgu v smeri ekstrudiranja filmov ter raztržne sile pravokotno na smer ekstrudiranja filmov, kakor tudi na zmanjšanje raztržne sile v smeri ekstrudiranja filmov.
Type of material - research report
Publication and manufacture - Maribor : Visoka ekonomsko-komercialna šola, 1986
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