Tiskovna forma za visoki tisak od biorazgradivih polimera

Priselac, Dino (2017) Tiskovna forma za visoki tisak od biorazgradivih polimera. Master's thesis - Graduate Programme. Grafički fakultet. [Mentor: Mahović Poljaček, Sanja].

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Abstract

Prateći trend razvoja ekološki povoljnijih postupaka u grafičkoj tehnologiji gdje su izbačeni pojedini postupci i kemikalije, svrha ovog rada jest napraviti ekološki prihvatljivu tiskovnu formu za visoki tisak od biorazgradivih materijala. Osnovni materijali koji će se primjenjivati u izradi ovih tiskovnih formi su biorazgradivi PLA (polilaktična kiselina), PCL (polikaprolakton) te kokosova vlakna. PLA ili polilaktična kiselina je biorazgradivi i bioaktivni termoplastični alifatski poliester dobiven iz obnovljivih izvora poput kukuruznog škroba, korijena tapioke ili šećerne trske. PCL je biorazgradivi poliester niske temperature tališta (oko 60 °C).Na dobivenim polimerima vršena su razna ispitivanja poput diferencijalne pretražne kalorimetrije, termogravimetrijske analize, mjerenja tvrdoće polimera, ispitivanje prekidne čvrstoće te određivanje slobodne površinske energije. Primarna primjena dobivenog materijala jest tiskovna forma za slijepi tisak.

Item Type:	Master's thesis - Graduate Programme
Mentor name:	Mahović Poljaček, Sanja
Thesis Committee:	Lozo, Branka and Mahović Poljaček, Sanja and Poljičak, Ante
Defence date:	5 July 2017
Abstract in english:	Following the trend of environmentlly friendly processes in the graphic technology where certain processes and chemicals are excluded, the aim of this work is to invent environmentally friendly printing plate for letterpress made from biodegradable materials. The essential materials that will be used for making these printing plates are biodegradable PLA (polylactic acid), PCL (polycaprolactone) and coconut fibers. PLA is biodegradable and bioactive thermoplastic aliphatic polyester made from renewable sources such as corn starch, tapioca root and sugar cane. PCL is biodegradable polyester with low melting point (around 60 °C). Various tests were made on the created polimers, for example differential scanning calorimetry, thermogravimetric analysis, measuring hardness of polymer, tensile strength test and determinating the surface free energy. The primary use of this material is printing plate for blind embossing.
Uncontrolled Keywords:	biorazgradivost, PLA, PCL, tiskovna forma
Keywords in english:	biodegrability, PLA, PCL, printing plate
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakultet
City:	Zagreb
Number of Pages:	81
Callnumber:	MAH 2017 PRI
Inventory number:	DB631
Depositing User:	Nina Jelača
Status:	Unpublished
Date Deposited:	27 Jul 2017 08:07
Last Modified:	27 Jul 2017 08:07
URI:	http://eprints.grf.unizg.hr/id/eprint/2708

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