Naslov
Intumescence in fire retardancy of wood-HDPE/PVC composites

Autori
Katančić, Zvonimir ; Kratofil Krehula, Ljerka ; Ptiček Siročić, Anita ; Hrnjak-Murgić, Zlata

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
The 8th International Conference on Modification, Degradation and Stabilization of Polymers, Book of Abstracts / Aulova, Alexandra ; Rogelj, Alenka ; Emri, Igor - Ljubljana : SSEM, Slovene Society of Experimental Mechanics, 2014, 177-177

ISBN
978-961-281-511-0

Skup
The 8th International Conference on Modification, Degradation and Stabilization of Polymers

Mjesto i datum
Portorož, Slovenija, 31.08.2014. - 04.09.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Flammability; Intumescence; Polyethylene; Wood-plastic composites

Sažetak
The production of wood-plastic composites (WPCs) in the thermoplastic industry has gained much acceptance in recent years and is expected to keep growing. The main application area of wood-plastic composites is in the building and automotive industries, but they are also applied for packaging, for the preparation of various household articles with increasing usage in interior as office appliances and furniture [1]. Therefore fire retardancy of the WPCs is important key point because modern safety demands require fire resistant materials. The goal of this research was to investigate effect of intumescent [2] ammonium polyphosphate/pentaerythritol (APP/PER) system on fire retardancy and thermal stability of wood-plastic composites based on HDPE/PVC blend. Fumed silica nanoparticles were added to some samples to examine possible further improvement of fire and thermal. Thermal stability was characterized by thermogravimetric analysis (TGA) while fire performance was evaluated by UL-94 test. Tensile properties were also measured to determine effect of fillers loadings on mechanical properties of WPCs. TGA results showed that there is no significant improvement of degradation temperatures, but char yield increased for 50 % in samples that contained PER. It was found that with addition of APP alone it is not possible to achieve any classification in UL-94 test while APP/PER samples self-extinguished in less than 5 seconds without burning drops thus obtaining highest V-0 rating in UL-94 test. No improvement of thermal and fire properties was noticed in samples containing silica nanoparticles and at the same time those samples had degraded mechanical properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Drvna tehnologija

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