Priprava i karakterizacija nanofluida sa svojstvima tekućeg oklopa

undergraduate thesis

• Title (english): Preparation and characterization of nanofluids with liquid armor properties
• Author: Tina Zubović
• Mentor: Ante Jukić (mentor)
• Committee member: Ante Jukić (predsjednik povjerenstva)
• Committee member: Fabio Faraguna (član povjerenstva)
• Committee member: Marijana Kraljić Roković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2019-09-11, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

U svijetu u kojem se uvijek teži ka boljim načinima obrane, proizvodnja zaštitnih prsluka je jedna od profitabilnijih industrija. Uz stalnu potrebu za poboljšanjem proizvoda razvijen je novi oblik zaštitnog prsluka temeljen na tehnologiji tekućeg oklopa. U ovom se radu provela priprava tekućeg oklopa na osnovi aramidne tkanine impregnirane sa smično ugušćenim fluidom. Smično ugušćeni fluid je pripremljen iz polietilen glikola i različitih udjela silicijevog dioksida u obliku nanočestica. Namješavanje se provodilo upotrebom ultrazvučne sonde do oslobađanja energije od 15 000 kJ. Nanofluidima su određeni toplinska vodljivost i reološka svojstva. Na pripravljenim impregniranim sustavima provest će se balističko testiranje.

Abstract (english)

In a world that always strives for better defense systems, the production of protective vests is one of the most profitable industries. With the constant need for product improvement a new form of protective vest was developed based on liquid armor technology. In this paper, the preparation of liquid armor based on aramid fabric impregnated with shear thickening fluid was carried out. The shear thickening fluid was prepared from polyethylene glycol and different amounts of silica in the form of nanoparticles. Mixing was performed using an ultrasonic probe to release energy of 15,000 kJ. Thermal conductivity and rheological properties were determined for nanonfluids. Ballistic testing will be carried out on prepared impregnated systems.

• Keywords: tekući oklop; smično ugušćeni fluid; impregnacija; nanofluid
• Keywords (english): liquid armor; shear thickening fluid; impregnation; nanofluid
• Language: croatian
• URN:NBN: urn:nbn:hr:149:919465
• Study programme: Title: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry; Course: Advanced materials and technologies; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-05-29 13:04:12