Lightweight particleboards - manufacturing modification using a blowing agent from the group of bicarbonates

• Autorzy: Bednarczyk Dominika , Boruszewski Piotr

Identyfikatory

DOI

10.5604/01.3001.0015.8935

• Języki publikacji: EN

Abstrakty

EN

Lightweight particleboards - manufacturing modification using a blowing agent from the group of bicarbonates. Although the low-density particleboards have grown in popularity, due to their facilitated transportation and a lower mass in the assembled finished products, there is still certain constraints in their use caused by limited mechanical properties. These obstacles may be overcome by the mechanism of foaming the polymers that bind wood particles in the boards’ structure. The aim of this study was to determine the possibility of using sodium bicarbonate as a blowing agent of phenolic resin used for bonding wood particles in the technology of lightweight particleboards. It was found that the addition of sodium bicarbonate in the amount of 5% in relation to the dry weight of the phenolic resin significantly increase the internal bond strength of the manufactured particleboards.

PL

łyty wiórowe o obniżonej gęstości - modyfikacja wytwarzania przy użyciu poroforu z grupy wodorowęglanów. Pomimo tego, że płyty wiórowe o obniżonej gęstości zyskują na popularności, ze względu na ułatwiony transport i niższą masę gotowych produktów, nadal istnieją pewne utrudnienia w ich zastosowaniu, spowodowane niedostatecznymi właściwościami mechanicznymi. Ograniczenia te mogą zostać zminimalizowane dzięki zastosowaniu mechanizmu spieniania żywicy wiążącej cząstki drewna w płytach wiórowych. Celem pracy było określenie możliwości zastosowania wodorowęglanu sodu jako poroforu żywicy fenolowej stosowanej do zaklejenia cząstek drewna w technologii lekkich płyt wiórowych. Stwierdzono, że dodatek wodorowęglanu sodu w ilości 5% w stosunku do suchej masy żywicy fenolowej istotnie zwiększa wytrzymałość na rozciąganie prostopadle do płaszczyzny płyty w wytworzonym materiale.

Słowa kluczowe

EN

low density; lightweight particleboard; blowing agent; sodium bicarbonate; phenolic resin

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2022
• Tom: No. 117
• Strony: 55--62
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Bednarczyk Dominika

• Faculty of Wood Technology, Warsaw University of Life Sciences-SGGW

autor

Boruszewski Piotr

• Department of Technology and Entrepreneurship in Wood Industry, Institute of Wood Science and Furniture, Warsaw University of Life Science-SGGW

Bibliografia

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