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Studium vztahu mezi vnitřní strukturou HDPE a odolností vůči rychlosti šíření trhliny SCG (Slow Crack Growth) / Study of Relation between HDPE Internal Structure and Its Cut Growth Resistance SCG (Slow Crack Growth)

This thesis deals with the relation between structure and resistance to failure by the mechanism of slow crack growth (SCG) in HDPE. In the theoretical part there are summarized previously acquired knowledge about the production of PE and about the relation between structure and resistance to failure by the SCG mechanism. In the experimental part, three samples of HDPE with the same melt index MI and the same content of copolymer 1- hexene were synthesized by using three chromium catalysts commonly used for polymerization in industry. There samples were analyzed by GPC-IR-MALS and TREF in order to determine the distribution of side chain branches. The results were discussed with respect to the time to failure FNCT.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:217108
Date January 2015
CreatorsChladil, Martin
ContributorsŽídek, Jan, Petrůj, Jaroslav
PublisherVysoké učení technické v Brně. Fakulta chemická
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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