Use of basalt scrim to enhance mechanical properties of particleboards

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F20%3A43917097" target="_blank" >RIV/62156489:43410/20:43917097 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.conbuildmat.2019.117769" target="_blank" >https://doi.org/10.1016/j.conbuildmat.2019.117769</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2019.117769" target="_blank" >10.1016/j.conbuildmat.2019.117769</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Use of basalt scrim to enhance mechanical properties of particleboards

Popis výsledku v původním jazyce

The particleboard (PB) industry faces a high demand for light, low-cost panels of specific mechanical properties. This may be hard to fulfil because the density and strength of wood are linearly correlated. Use of proper materials and composition, however, may result in panels of a high strength-to-weight-ratio. This allows saving raw wood and energy as the strengthened PB is useful for high-load-bearing application. A promising reinforcing material are basalt fibres. In this study, basalt fibres in the form of a scrim provided reinforcement inside the PB panel. The scrim used had an area weight of 360 g.mMINUS SIGN 2. Four compositions of 18 mm thick PBs and 640 kg.mMINUS SIGN 3 target density were produced using melamine-urea-formaldehyde (MUF) resin as the binder. Basalt scrims were positioned in the core, between the core and surface and in between both surface layers. The scrim used was either dry or additionally impregnated with MUF resin. The best variant proved to be the impregnated scrim placed in the middle of both surface layers. Its modulus of rupture (MOR) and modulus of elasticity (MOE) increased by 119 and 85% compared to the control panels, respectively. The setup also improved internal bond strength, screw withdrawal resistance and thickness swelling. Thus, basalt scrims at the outer positions significantly enhance the strength-to-weight-ratio of PBs.

Název v anglickém jazyce

Use of basalt scrim to enhance mechanical properties of particleboards

Popis výsledku anglicky

The particleboard (PB) industry faces a high demand for light, low-cost panels of specific mechanical properties. This may be hard to fulfil because the density and strength of wood are linearly correlated. Use of proper materials and composition, however, may result in panels of a high strength-to-weight-ratio. This allows saving raw wood and energy as the strengthened PB is useful for high-load-bearing application. A promising reinforcing material are basalt fibres. In this study, basalt fibres in the form of a scrim provided reinforcement inside the PB panel. The scrim used had an area weight of 360 g.mMINUS SIGN 2. Four compositions of 18 mm thick PBs and 640 kg.mMINUS SIGN 3 target density were produced using melamine-urea-formaldehyde (MUF) resin as the binder. Basalt scrims were positioned in the core, between the core and surface and in between both surface layers. The scrim used was either dry or additionally impregnated with MUF resin. The best variant proved to be the impregnated scrim placed in the middle of both surface layers. Its modulus of rupture (MOR) and modulus of elasticity (MOE) increased by 119 and 85% compared to the control panels, respectively. The setup also improved internal bond strength, screw withdrawal resistance and thickness swelling. Thus, basalt scrims at the outer positions significantly enhance the strength-to-weight-ratio of PBs.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Construction and Building Materials

ISSN

0950-0618

e-ISSN

—

Svazek periodika

238

Číslo periodika v rámci svazku

30 March

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

117769

Kód UT WoS článku

000527331900081

EID výsledku v databázi Scopus

2-s2.0-85076057083