Vpliv vsebnosti ogljikovih vlaken kompozita in utrjevanje epoksi matrice v avtoklavu na kakovost kompozita po vakuumski infuziji

zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program

Jakob Šturm (Author), Zoran Bergant (Mentor)

Abstract

V okviru zaključne naloge smo se seznanili s procesom vakuumske infuzije, ki ji sledi še obdelava v avtoklavu. Naš namen je bil določiti čim boljše izdelovalne parametre za doseganje dobrih mehanskih lastnosti kompozita. Glavni cilj naloge je bil določiti optimalno razmerje ogljikovih vlaken in epoksi smole ter opredeliti prispevek avtoklava na izboljšanje upogibne trdnosti tako izdelanega kompozitnega vzorca. Poleg tega smo z analizo mikroskopskih slik določili vpliv avtoklava na poroznost kompozita, tako na površini kot po preseku. Mehanske lastnosti smo preverjali s tritočkovnim upogibnim preizkusom. Z večanjem količine smole do določenega volumskega razmerja se po postopku vakuumske infuzije mehanske lastnosti kompozita izboljšujejo. Ob dodatni uporabi avtoklava pa je bila za doseg enakih mehanskih lastnosti kompozita potrebna manjša količina smole. Avtoklav je pozitivno vplival tudi na stopnjo poroznosti v kompozitu, saj jo je v primerjavi z vzorci, izdelanimi brez avtoklava, zmanjšal v vseh vzorcih.

Keywords

diplomske naloge;vakuumska infuzija;kompozit;ogljikova vlakna;epoksi smola;avtoklav;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[J. Šturm]
UDC:	621.9.04:678.058.4(043.2)
COBISS:	72916227
Views:	621
Downloads:	77
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Influence of content of carbon fiber of composite and hardening of epoxy matrix within autoclave on quality of composite of vacuum infusion
Secondary abstract:	As part of the final task, we became acquainted with the process of vacuum infusion, followed by processing in autoclave. Our intention was to determine the best production parameters for the achievement of good mechanical properties of composite. The main objective of the task was to determine the optimal ratio of carbon fibre and epoxy resin and to define the contribution of the autoclave to improving the bending strength of the composite sample thus produced. In addition, microscopy was used to determine the impact of the autoclave on the porosity of composite, both on the surface and after the cross-section. Mechanical properties were checked by a three-point bending test. We found that by increasing the resin volume to a certain volume ratio after the vacuum infusion process, the mechanical properties of composite improved. However, when the autoclave was used, smaller amount of resin was required to achieve the same mechanical properties of the composite. Autoclave also had a positive effect on the porosity rate in the composite, as it decreased in all samples compared to samples manufactured without autoclave.
Secondary keywords:	thesis;vacuum infusion;composite;carbon fibre;epoxy resin;autoclave;
Type (COBISS):	Final paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XIV, 31 f.
ID:	13123204