Izbrane tehnološke lastnosti talnih oblog iz kokosove palme

Perko, Boštjan (author), Straže, Aleš (mentor), Merela, Maks (comentor)

Proučevali smo tehnološke lastnosti talnih oblog iz kokosove palme. Raziskave smo opravili na naključno izbranih elementih, ki smo jih dobili na skladišču komercialnega ponudnika. Preizkušance dimenzij 900 mm × 95 mm × 15 mm smo vizualno po barvi razvrstili v 3 skupine, od svetlih, srednje svetlih do temnih. V normalni klimi smo določali barvo, gostoto in trdoto po Brinellu, ter izdelali vzorce za mikroskopijo. Dimenzijsko stabilnost in higroskopnost pa smo določali z uravnovešanjem v suhi (20 °C / 35 %) in vlažni klimi (20 °C / 87 %). Gostota kokosovine je variirala med 468 in 1086 kg/m3 in je naraščala z deležem skupkov vaskularnih vlaken. Z naraščanjem gostote se je izboljševala tudi trdota in higroskopnost kokosovine, slabšala pa se je njena dimenzijska stabilnost. Z določanjem barve kokosovine v RGB prostoru, lahko s parametrom B (blue) uspešno napovemo gostoto tega materiala.

• Language: Slovenian
• Keywords: talne obloge, kokosovina, fizikalne lastnosti, dimenzijska stabilnost
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [B. Perko]
• Year: 2020
• PID: 20.500.12556/RUL-120293
• UDC: 634.616:684.77
• COBISS.SI-ID: 28826115
• Publication date in RUL: 18.09.2020

Secondary language

• Language: English
• Title: Selected technological properties of coconut flooring

Abstract

The technological properties of coconut palm flooring were studied on randomly selected elements obtained from a commercial supplier's warehouse. Test specimens, having dimensions of 900 mm × 95 mm × 15 mm, were visually divided into three groups by colour, from light, medium light to dark. Under normal climate the colour, density, and Brinell hardness of cocowood were determined and the structure analysed by microscopy. Dimensional stability and hygroscopicity were determined by conditioning of cocowood in both dry (20°C / 35 %) and humid climate (20°C / 87 %). The density of cocowood varied between 468 and 1086 kg/m3 and increased with the proportion of bundles of vascular fibres. As the density increased, the hardness and hygroscopicity of the cocowood also improved, and its dimensional stability reduced. By determining the colour of cocowood in RGB space, we can successfully predict the density of this material with parameter B (blue).

• Keywords: coconut flooring, physical properties, dimensional stability