Novi napredni materijali inspirirani prirodom

undergraduate thesis

• Title (english): New advanced materials inspired by nature
• Author: Katarina Grlić-Radman
• Mentor: Mirela Leskovac (mentor)
• Committee member: Mirela Leskovac (predsjednik povjerenstva)
• Committee member: Emi Govorčin Bajsić (član povjerenstva)
• Committee member: Vladimir Dananić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2024-09-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Razvoj biomimetičkih materijala inspiriranih prirodom postaje sve važniji zbog svojih inovativnih primjena. Paukova mreža pokazala se kao jedan od najzanimljivih materijala zbog svojih izvrsnih mehaničkih karakteristika, biokompatibilnosti, adhezijskih i superhidrofobnih svojstava te izvrsne toplinske stabilnosti. Cilj ovog rada je ispitati strukturna i toplinska svojstva paukove svile dobivene sakupljanjem paukovih mreža. Toplinska svojstva određena su diferencijalnom pretražnom kalorimetrijom (DSC) i termogravimetrijskom analizom (TGA), dok su površinske karakteristike analizirane mjerenjem kontaktnog kuta. Sastav i karakteristične skupine prisutne u paukovoj svili (mreži) određene su infracrvenom spektroskopijom s Fourierovom transformacijom (FTIR). Za svaku metodu opisane su teorijske značajke, eksperimentalni uvjeti i rezultati mjerenja. Eksperimentalna analiza pokazala je da je paukova svila izuzetno zanimljiva zbog svoje kompleksne strukture kao i jedinstvenih svojstava, što je čini vrlo zanimljivim materijalom za istraživanje za različite primjene.

Abstract (english)

The development of biomimetic materials inspired by nature is becoming increasingly important due to their innovative applications. Spider silk has proven to be one of the most intriguing materials because of its excellent mechanical properties, biocompatibility, adhesive and superhydrophobic properties, as well as its remarkable thermal stability. The aim of this work is to examine the structural and thermal properties of spider silk obtained by collecting spider webs. Thermal properties were determined using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), while surface characteristics were analyzed by measuring the contact angle. The composition and characteristic groups present in spider silk (web) were determined using Fourier transform infrared spectroscopy (FTIR). For each method, theoretical features, experimental conditions, and measurement results were described. The experimental analysis showed that spider silk is highly interesting due to its complex structure and unique properties, making it a very attractive material for research in various applications.

• Keywords: biomimetički materijali; paukova mreža; DSC; TGA; FTIR; kontaktni kut
• Keywords (english): biomimetic materials; spider net; DSC analysis; TGA analysis; FTIR analysis; contact angle
• Language: croatian
• URN:NBN: urn:nbn:hr:149:804620
• 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: 2024-11-14 14:20:44