Vlakna brnistre kao ojačavajući materijal za kompozite na osnovi polipropilena

undergraduate thesis

• Title (english): Broom fibers as reinforcing materials for polypropylene-based composites
• Author: Maja Ranogajec
• Mentor: Emi Govorčin Bajsić (mentor)
• Committee member: Emi Govorčin Bajsić (predsjednik povjerenstva)
• Committee member: Ljerka Kratofil Krehula (član povjerenstva)
• Committee member: Igor Sutlović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2023-09-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

U današnje vrijeme, proizvodnja prirodnih kompozitnih materijala u velikom je usponu, a njihova primjena zastupljena je u raznim industrijama. U prvom dijelu ovog rada navedene su osnovne informacije i povijesni pregled o polimerima i polimernim materijalima, o kompozitima, kao i o kompozitima polipropilena i vlaknima brnistre čija su svojstva u ovom radu ispitivana. Drugi dio rada obuhvaća eksperimentalni dio, pripremu kompozita ojačanih vlaknima brnistre, analizu tako pripremljenih kompozita diferencijalnom pretražnom kalorimetrijom, termogravimetrijskom analizom, i stupanj bubrenja. Dobiveni rezultati uspoređuju se sa svojstvima čistog polipropilena te se donose zaključci o utjecaju vlakana brnistre na svojstva kompozita na osnovi polipropilena.

Abstract (english)

Nowadays, the production of natural composite materials is on the rise. Also, their application is becoming more common every day in different industries due to the profitability of their production, but also crucially, due to the better modified properties that can be achieved in combination with plant fibers. In the first part of this paper, basic information and a historical overview about polymers and polymer materials, about composites, as well as polypropylene and Spanish broom, whose properties were examined in this paper, are given. The second part of this paper includes the experimental part, the preparation of composites reinforced with broom fibers, the analysis of the composites prepared in this way by differential search calorimetry, thermogravimetric analysis, but also the examination of their behavior in contact with water. The obtained results are compared with the properties of pure polypropylene, and conclusions are drawn about the influence of broom fibers on the properties of polypropylenebased composites.

• Keywords: polipropilen; vlakna brnistre; kompoziti; DSC; TGA; apsorpcija vode
• Keywords (english): polypropylene; broom fibers; composites; DSC; TGA; water absorption
• Language: croatian
• URN:NBN: urn:nbn:hr:149:652551
• Study programme: Title: Materials Science and Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-09-06 08:44:44