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Priprema i karakterizacija kompozita polilaktid/klinoptilolit : završni rad ; Preparation and characterization of polylactide/clinoptilolite composites : bachelor thesis

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  • معلومة اضافية
    • Contributors:
      Andričić, Branka
    • بيانات النشر:
      Sveučilište u Splitu. Kemijsko-tehnološki fakultet. Odsjek za inženjerstvo i tehnologije.
      University of Split. Faculty of Chemistry and Technology. Division of Engineering and Chemistry.
    • الموضوع:
      2020
    • Collection:
      Croatian Digital Theses Repository (National and University Library in Zagreb)
    • نبذة مختصرة :
      Svrha ovog rada je pripremiti kompozite polilaktid/klinoptililot metodom izlijevanja filma i istražiti utjecaj klinoptilolita na svojstva polilaktida (ponašanje u vodi i toplinska razgadnja). Pripremljeni su filmovi kompozita PLA/klinoptilolit u kloroformu s 0, 2, 4, 6, 8 i 10 % klinoptilolita. Analizom FT-IR spektara potvrđen je zaostatak otapala u kompozitima. Primjenom neizotermne termogravimetrije istraživan je utjecaj klinoptilolita na toplinsku postojanost PLA. Rezultati su pokazali da dodatak klinoptilolita poboljšava toplinsku postojanost polilaktida. Kompoziti PLA/klinoptilolit su držani u vodi 5 dana kako bi se utvrdilo dolazi li do procesa apsorpcije vode ili hidrolize polilaktida. Pretpostavlja se da je kod svih kompozita došlo do hidrolize polilaktida, a kod kompozita sa 6 i 8 % klinoptilolita došlo je i do apsorpcije vode. ; The purpose of this thesis is to prepare polylactide/clinoptilolite composites by the film casting method and to investigate the influence of clinoptilolite on the properties of polylactide (water behavior and thermal decomposition). Films of PLA/clinoptilolite composites in chloroform with 0, 2, 4, 6, 8 and 10 % clinoptilolite were prepared. Solvent residue in the composites was confirmed by FT-IR spectrum analysis. The influence of clinoptilolite on thermal stability of PLA was investigated using non-isothermal thermogravimetry. The results showed that the addition of clinoptilolite improves the thermal stability of polylactide. PLA/clinoptilolite composites were kept in water for 5 days to determine whether a process of water absorption or hydrolysis of the polylactide occurred. It is assumed that polylactide hydrolysis occurred in all composites, and water absorption occurred in composites with 6 and 8 % clinoptilolite.
    • File Description:
      application/pdf
    • Relation:
      https://zir.nsk.hr/islandora/object/ktfst:793; https://urn.nsk.hr/urn:nbn:hr:167:946371; https://repozitorij.svkst.unist.hr/islandora/object/ktfst:793; https://repozitorij.svkst.unist.hr/islandora/object/ktfst:793/datastream/PDF
    • الدخول الالكتروني :
      https://zir.nsk.hr/islandora/object/ktfst:793
      https://urn.nsk.hr/urn:nbn:hr:167:946371
      https://repozitorij.svkst.unist.hr/islandora/object/ktfst:793
      https://repozitorij.svkst.unist.hr/islandora/object/ktfst:793/datastream/PDF
    • Rights:
      http://rightsstatements.org/vocab/InC/1.0/ ; info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsbas.E419B75C