17 KB198 KB15 KB200020242001Freitas Liane, LuccaMalavašič, TatjanaUlčnik-Krump, Manicaštevilka:3/4letnik:354 stranistr. 139-142ISSN:1580-2949COBISSID:4558107URN:URN:NBN:SI:doc-J3FHE7IWenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijelastnosti reološkemešanicemešanice polimerovmetode eksperimentalnepolimerireološke lastnostistrukturastrukturePrediction of polymer blends structure| Napovedovanje strukture mešanic polimerov|Many everyday engineering applications of polymers depend on their structure-property relationship, which strongly influences polymer procesability. In order to obtain a satisfactory understanding of polymers behavior their structure should be investigated and correlated with their properties. That is particularly in the case of complicated polymer systems, e.g. block copolymers, polymer blends or compatibilized polymer blends, very difficult and time-consuming procedure. In the present study it is shown how the investigations of rheological properties can be directly used for predicting the structure of polymer blends. Rheological properties of polymer blends were investigated with tests performed in static and dynamics mode. In spite of the fact that polymer blends are thermorheologicaly complex materials, master curves mechanical response were constructed. It was shown that mechanical spectroscopy might be used as a tool for predicting structure even in such complicated polymer systems as polymer blendsVsakodnevna uporaba polimerov je odvisna od medsebojnega vpliva njihove strukture in lastnosti, kar močno vpliva na predelovalne lastnosti polimerov. Da bi razumeli vedenje polimerov je treba poznati njihovo strukturo in jo primerjati z njihovimi lastnostmi. To je posebej v primeru zapletenih polimernih sistemov, kot so blokkopolimeri, mešanice polimerov ali kompatibilizirane mešanice polimerov, zahteven in dolgotrajen proces. V naših raziskavah smo pokazali, kako lahko rezultate reoloških raziskav direktno uporabimo za napovedovanje strukture mešanic polimerov. Kljub dejstvu, da so mešanice polimerov termoreološko kompleksni materiali, smo narisali t. i. sestavljene krivulje mehanskega odziva. Ugotovili smo, da lahko mehansko spektroskopijo uporabimo kot dodatno orodje za napovedovanje strukture celo v tako zapletenih polimernih sistemih, kot so mešanice polimerovTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije