Metode za izdelavo mikropretočnih sistemov

diplomsko delo

Simon Pavlič (Author), Nataša Gros (Mentor)

Abstract

Mikropretočni sistemi izdelani s tehnologijo nalaganja s spajanjem imajo slabo resolucijo. Ker se plasti zaradi mehanske omejitev tiskalnika ne morajo poravnati, pride do tako imenovanega stopničastega vzorca pri poševnih površinah, med samimi plastmi pa nastanejo vrzeli. Hrapavost površine lahko zmanjšamo z izbiro pravih parametrov tiskanja, ali z obdelavo s primernim topilom. Topilo raztopi vrhnjo plast materiala. Zmes polimera in topila pa zapolni vrzeli med plastmi. Ta koncept smo uporabil za glajenje površine enostavnega Y čipa, narejenega iz polimera mlečne kisline (PLA). Uporabili smo pare etil acetata. Obdelava je trajala 5 minut. Primerjali smo razmerje mešanja barvil pred obdelavo in to na razdalji 3 mm od stičišča. Ugotovili smo, da takšen način obdelave ni primeren za mikropretočne sisteme.

Keywords

mikropretočni sistemi;3D tisk;nalaganje s spajanjem;polimer mlečne kisline;obdelava;diplomska dela;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[S. Pavlič]
UDC:	66.023(043.2)
COBISS:	81972995
Views:	243
Downloads:	30
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Methods for fabrication of microfluidic systems
Secondary abstract:	Microfluidic systems made with fused deposition modeling printer have poor resolution. Because the layers are not aligned due to the mechanical limitations of the printer, a so-called ridge pattern occurs on inclined surfaces and (ridge pattern) between the layers. However surface roughness can be reduced with right parameters or post processing. Suitable solvent can melt top layer of material. Slurry than fills the gaps between the layers. we used this concept to treat a simple Y chip made from polylactic acid (PLA) with ethyl acetate vapor for 5 minutes. We compared dye mixing ratios before and after processing 5 mm away from intersection. Flow in chip was observed with digital camera. We found out that this method is not suited for microfluidic devices.
Secondary keywords:	microfluidic systems;fused deposition modelling;polylactic acid;post treatment;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000373
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemija
Pages:	30 str.
ID:	13359954