Mechanical and thermal behavior of hybrid composite medium density fiberboard reinforced with phenol formaldehyde

Abstract

The world was in demand of wood products mainly for interior design, furniture making and household utilizes and at the same time agricultural residue usage was increased for making Engineering woods. Coconut is an abundant crop in Asia and coir fiber was extracted from coconut husk, as by-products. MDF was one of the by-products produced from coir reinforced with resin. In this work, the coconut coir was used to produce hybrid MDF with basalt fiber and phenol-formaldehyde resin hybridization. The panel was prepared with different coir and basalt fiber combinations by keeping a fixed resin percentage. The coir and basalt fiber percentage ranges from 40 to 75 % and 5–40 % respectively. SEM studied the morphological characteristic of the panel whereas thermal stability of the panel was evaluated through Thermo-gravimetric Analysis. The fire resistance was observed through a flammability test. The physical properties and mechanical properties were evaluated by ASTM Standards. From the investigations, the MoR and MoE have a higher value for Panel 3 with 29.14 N/mm 2 and 3143 N/mm 2 respectively and the internal bonding strength shows of 2.1 N/mm 2 maximum values of mechanical properties. The result shows for panel 3 has 15 % and 18 % more strength for MoE and MoR respectively and IB also shows 35 % of increased value.

Physical and Mechanical Properties of Fiberboard Made of MDF Residues and Phase Change Materials

“…Researchers are exploring alternative lignocellulosic materials to address this supply constraint. Some of the fibers being considered are soybean straw [3][4][5], rice straw [6][7][8], and coconut fiber [9][10][11]. Nonetheless, these fibers pose challenges when it comes to their suitability for large-scale industrial production.…”

Physical and Mechanical Analysis of Fiberboard Made Of MDF Residues and Phase Change Materials

“…Researchers are exploring alternative lignocellulosic materials to address this supply constraint. Some of the fibers being considered are soybean straw [3][4][5], rice straw [6][7][8], and coconut fiber [9][10][11]. Nonetheless, these fibers pose challenges when it comes to their suitability for large-scale 2 industrial production.…”

Análise do efeito da incorporação de nanopartículas de ZnO nas propriedades físicas e mecânicas de painéis MDF

“…O uso de produtos engenheirados à base de madeira ganhou força com o incremento nas aplicações na indústria da construção civil, moveleira e de embalagens, sendo um alternativa ao uso de madeira serrada, com destaque ao painel de fibras de média densidade (MDF) (AKGÜL et al, 2017;BERTOLINI et al, 2014;CHIROMITO et al, 2016;NASCIMENTO et al, 2016;PINCHEVSKA et al, 2021;PUGAZHENTHI;ANAND, 2021).…”

“…Alabduljabbar et al (2020) estudaram os efeitos da adição de nanopartículas de alumina em painéis MDF e verificaram melhora nas propriedades físicas. Com base nos estudos recentes, não se verifica prejuízo no processo produtivo pela adição de nanopartículas, tendo em vista que em todos os estudos a mistura ocorre na etapa de preparação dos aditivos para a colagem (VALLE et al, 2020;PUGAZHENTHI;ANAND, 2021;CHIROMITO et al, 2016). Kumar et al (2013) analisaram a influência da incorporação de micropartículas de óxido de alumínio (Al2O3), também conhecido como alumina, nas propriedades físicas e mecânicas de painéis MDF feitos com ureiaformaldeído (UF), adicionando teores de 1,0%, 2,5% e 5,0% de óxido em relação à massa de adesivo UF.…”