Title Analiza svojstava materijala za punila Author Ana Krajač Mentor Dragana Kopitar (mentor)Committee member Maja Somogyi Škoc (predsjednik povjerenstva)Committee member Dragana Kopitar (član povjerenstva)Committee member Ivana Schwarz (član povjerenstva)Granter University of Zagreb Defense date and country 2018-09-28, Croatia Scientific / art field, TECHNICAL SCIENCES Abstract Različiti tekstilni materijali pronalaze svoju namjenu prilikom izrade namještaja pa tako i tekstilni materijali za punila. Poliesterska punila i poliuretanske pjene su neki od takvih materijala koji se koriste kao punila za namještaj. Poliesterska i poliuretanska punila razlikuju se po načinu proizvodnje, a time i po svojoj strukturi i svojstvima. Poliesterska vata proizvodi se mehaničkim postupkom na grebenaljci i učvršćenjem termičkim postupkom (vrućim zrakom). Poliuretanska pjene dobiva se lijevanjem iz taline u kalupe. Cilj rada je istraživanje osnovnih fizikalno-mehaničkih svojstava (površinska masa, debljina i vlačna svojstva), stlačivosti, termo-fizioloških svojstava (otpor prolaza topline i vodene pare) i otpornosti na gorenje (cigaret test) poliesterskih i poliuretanskih punila različitih površinskih masa.
Za približno jednake debljine netkanog tekstila i poliuretanske pjene utvrđeno je da netkani tekstil radi svoje strukture ima manje smanjenje debljine uslijed djelovanja utega masa 0,5 kg, 1,0 kg i 1,5 kg s obzirom na poliuretansku pjenu. Porastom površinske mase netkanog tekstila i poliuretanske pjene raste i prekidna sila, gdje obje vrste punila imaju veću prekidnu silu u CD smjeru s obzirom na MD smjer. Rahlija struktura netkanog tekstila, gotovo dvostruko veće površinske mase i manje manja debljina, pruža gotovo jednak otpor prolaza vodene pare kao i PU pjena znatno manje površinske mase i nešto veće debljine. Na otpor prolaza topline i vodene pare utječe debljina uzorka, a time i broj, veličina i tip pora unutar uzoraka. Prilikom ispitivanja punila na gorenje zadovoljeni su uvjeti koje ovi uzorci moraju ispunjavati kako bi se mogli koristiti u javnim prostorima.
Abstract (english) Various textile materials are finding purpose in furniture making, and so does textile paddings. Polyester paddings and polyurethane foams are some of materials used as furniture fillers. Polyester and polyurethane paddings are different in terms of production and therefore in terms of their structure and properties. Polyester wadding is produced by mechanical process on cards, bonded by thermal process (hot air). The polyurethane foam is produced by chemical process, casting from melt in molds. The aim of the thesis is to investigate the basic physical-mechanical properties (surface mass, thickness and tensile properties), compressibility, thermo-physiological properties (thermal and water vapor resistance) and the “cigarette test” of polyester and polyurethane paddings of different surface masses. For almost the same nonwoven fabric and polyurethane foam thickness, nonwoven fabrics have lower thickness reduction due to effect of 0.5 kg, 1.0 kg and 1.5 kg weigh, in relation to polyurethane foam. Increasing the surface mass of nonwoven fabric and polyurethane foam the breaking force increases too, where both types of paddings have a greater breaking force in the CD direction with respect to the MD direction. The loose nonwoven fabric structure, of almost double surface mass and less thickness, provides almost the same water vapor resistance as PU foam of less surface mass and slightly bigger thickness.
The thickness of the samples effects on heat and water vapor resistance, and thus the number, size and type of pore within the samples. The samples gave positive results on the fire resistance test and fulfilled the required conditions for public use.
Keywords
PES vata
PU pjena
vlačna otpornost
otpor prolaza topline i vodene pare
otpornost na gorenje
Keywords (english)
PES wadding
PU foam
tensile strength
thermal and water vapour resistance
fire resistance
Language croatian URN:NBN urn:nbn:hr:201:851511 Study programme Title: Textile Technology and Engineering; specializations in: Clothing Engineering, Textile Design and Management, Industrial Textile Design, Industrial Clothing Design, Textile Chemistry, Materials and Ecology Type of resource Text File origin Born digital Access conditions Access restricted to students and staff of home institution Terms of use Created on 2019-06-07 10:16:59
