An overview on development of environmental friendly medium density fibreboard

Lee, T.C.; Pu'ad, N.A.S. Mohd; Selimin, Mohamad Ali; Manap, Norpadzlihatun; Abdullah, Hasan Zuhudi; Idris, Maizlinda Izwana

doi:10.1016/j.matpr.2020.05.679

Cited by 15 publications

(10 citation statements)

References 34 publications

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“…The value of the pressure in the first stage was chosen given the possibility of removing the vapour from the material, and in the second stage because of its densification. These pressure values are in line with those commonly used in the industry for that purpose [1,81].…”

Section: Experimental Plansupporting

confidence: 86%

Optimization of the Hot-Pressing Regime in the Production of Eco-Friendly Fibreboards Bonded with Hydrolysis Lignin

Valchev

Yordanov

Savov

et al. 2021

Period. Polytech. Chem. Eng.

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This research was aimed at studying the potential of using residual lignin from acid hydrolysis as a binder in manufacturing eco-friendly, dry-process fibreboards. For that purpose, a modification of the adhesive system and hot-pressing regime was conducted. The adhesive system applied was composed of 2 % phenol-formaldehyde (PF) resin and 10 % hydrolysis lignin (based on the dry fibres). The PF resin does not only act as a binder but generally contributes to the even distribution and good retention of the main binder – hydrolysis lignin. A specific hot-pressing cycle was used. In the first stage, the pressure was 1.0 MPa, followed by an increased pressure of 4.0 MPa, and subsequent cooling. The purpose of the initial lower pressure was softening the lignin and reduction of the material moisture content. The effect of the second stage of hot-pressing on the properties of eco-friendly fibreboards was investigated. It was determined that the fibreboards produced with 2 % PF resin and 10 % hydrolysis lignin have similar physical and mechanical properties to those of the control panels, produced with 10 % PF resin at a standard hot-pressing cycle. The findings of this work demonstrate that residual hydrolysis lignin can be effectively utilized as a binder in the production of eco-friendly, dry-process fibreboards with acceptable physical and mechanical properties.

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Section: Experimental Plansupporting

confidence: 86%

Optimization of the Hot-Pressing Regime in the Production of Eco-Friendly Fibreboards Bonded with Hydrolysis Lignin

Valchev

Yordanov

Savov

et al. 2021

Period. Polytech. Chem. Eng.

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show abstract

“…A four-stage pressing regime with the following pressure values was used: (i) 4.5 MPa for 15 s, (ii) 1.2 MPa for 15 s, (iii) 0.6 MPa for 30 s, and (iv) 1.8 MPa for 30 s. Following the hot pressing, the manufactured panels were conditioned for 7 days at a temperature of 20 ± 2 °C and 65% relative humidity. The pressing regime was selected in accordance with the common industrial practice for production of HDF panels [ 90 ].…”

Section: Methodsmentioning

confidence: 99%

Properties of High-Density Fiberboard Bonded with Urea–Formaldehyde Resin and Ammonium Lignosulfonate as a Bio-Based Additive

et al. 2021

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The potential of ammonium lignosulfonate (ALS) as an eco-friendly additive to urea–formaldehyde (UF) resin for manufacturing high-density fiberboard (HDF) panels with acceptable properties and low free formaldehyde emission was investigated in this work. The HDF panels were manufactured in the laboratory with very low UF resin content (4%) and ALS addition levels varying from 4% to 8% based on the mass of the dry wood fibers. The press factor applied was 15 s·mm−1. The physical properties (water absorption and thickness swelling), mechanical properties (bending strength, modulus of elasticity, and internal bond strength), and free formaldehyde emission were evaluated in accordance with the European standards. In general, the developed HDF panels exhibited acceptable physical and mechanical properties, fulfilling the standard requirements for HDF panels for use in load-bearing applications. Markedly, the laboratory-produced panels had low free formaldehyde emission ranging from 2.0 to 1.4 mg/100 g, thus fulfilling the requirements of the E0 and super E0 emission grades and confirming the positive effect of ALS as a formaldehyde scavenger. The thermal analyses performed, i.e., differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), and derivative thermogravimetry (DTG), also confirmed the main findings of the research. It was concluded that ALS as a bio-based, formaldehyde-free adhesive can be efficiently utilized as an eco-friendly additive to UF adhesive formulations for manufacturing wood-based panels under industrial conditions.

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“…Saat ini, tren perkembangan material komposit telah mulai beralih dari komposit S 24321-135 dengan unsur penyusun sintetik ke komposit dengan bahan penyusun alami. Salah satu tren komposit saat ini, terutama kayu sebagai bahan bangunan untuk konstruksi, dekorasi, dan furnitur, terus berkembang seiring dengan meningkatnya populasi dunia [6][7][8] [9]. Komposit memiliki massa jenis lebih kecil dan harga yang lebih ekonomis dibandingkan dengan material lain seperti baja, beton, keramik, kaca, dan lain sebagainya.…”

Section: Pendahuluanunclassified

Analisis Sifat Fisis dan Mekanik Fiberboard Pada HDF, MDF, dan MLDF dengan Variasi Density Profile Menggunakan Alat Density Profile Analyzer Meter DPX200 IMAL

Rahmawati

Lafira

Sari³

et al. 2022

JPS

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Telah dilakukan penelitian analisis sifat fisis dan mekanik tentang perbandingan produk HDF, MDF, dan, MLDF yang ditinjau dari density profile. Tujuan penelitian ini untuk mengetahui pengaruh densitas pada sifat fisis dan mekanik fibreboard. Produk yang digunakan sebagai bahan perbandingan adalah HDF, MDF, dan MLDF sesuai dengan tingkat densitasnya. Penelitian ini dimulai dengan melihat density profile menggunakan alat density profile meter analyzer DPX200 IMAL yang menggunakan sinar X-Ray. Sampel diurutkan sesuai dengan posisi saat board dipotong di line pabrik. left, center left, center, center right, dan right dengan diberi plat aluminium antar sampel baru dimasukkan ke dalam alat density profile meter analyzer dengan hasil pada MLDF, puncak maksimum encapai 908 kg/m 3 dan 881 kg/m 3 . Pada MDF, puncak maksimum mencapai 935 kg/m 3 dan 946 kg/m 3 , serta HDF puncak maksimum mencapai 1085 kg/m 3 dan 1032 kg/m 3 . Sampel yang telah diuji density profile kemudian dilakukan pengujian Internal boanding, MOE/MOR, dan surface weight. Hasil dari pengukuran densitas diperoleh bahwa semakin tinggi densitas yang diperoleh, maka semakin besar pula nilai dari internal boanding, MOE/MOR, dan surface weight. Hal ini berarti, densitas berbanding lurus dengan ketiga pengujian mekanik yang telah dilakukan.

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An overview on development of environmental friendly medium density fibreboard

Cited by 15 publications

References 34 publications

Optimization of the Hot-Pressing Regime in the Production of Eco-Friendly Fibreboards Bonded with Hydrolysis Lignin

Optimization of the Hot-Pressing Regime in the Production of Eco-Friendly Fibreboards Bonded with Hydrolysis Lignin

Properties of High-Density Fiberboard Bonded with Urea–Formaldehyde Resin and Ammonium Lignosulfonate as a Bio-Based Additive

Analisis Sifat Fisis dan Mekanik Fiberboard Pada HDF, MDF, dan MLDF dengan Variasi Density Profile Menggunakan Alat Density Profile Analyzer Meter DPX200 IMAL

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