Effects of acidity of the particles and amount of hardener on the physical and mechanical properties of particleboard composite bonded with urea formaldehyde

Akyüz, Kadri Cemil; Nemli, Gökay; Baharoğlu, Mehmet; Zekoviç, Emir

doi:10.1016/j.ijadhadh.2009.12.006

Cited by 29 publications

(15 citation statements)

References 10 publications

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“…It has found typical applications as furniture, cabinets, flooring, table, counter and desktops, office dividers, wall and ceiling, stair treads, home constructions, sliding doors, kitchen worktops, interior signs, bulletin boards, and other industrial products (Nemli and Aydin 2007, Wang et al 2008, Akyuz et al 2010, Marzbani et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the mechanical and physical properties of particleboard manufactured from Canola (Brassica napus) straws

Kord¹,

Zare

Hosseinzadeh

2016

Maderas, Cienc. tecnol.

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This study examined possible feasibility of canola (Brassica napus) straws in the production of particleboard. Three-layer experimental particleboards with density 0,7 g/cm 3 were manufactured using different canola straws particle ratios (0%, 25%, 50%, 75% and 100%) and urea formaldehyde (UF) adhesive. Modulus of elasticity (MOE), modulus of rupture (MOR), internal bond strength (IB), water absorption (WA) and thickness swelling (TS) properties of the boards were evaluated and a statistical analysis was performed in order to examine possible feasibility of these straws in commercial particleboard manufacturing. The results indicated that, the addition of canola straws particle significantly improved modulus of rupture and modulus of elasticity of the panels and greatly reduced their internal bonding. Overall findings showed that most panels made from above-mentioned materials exceed the EN Standards for MOR, MOE and IB. Also, the water absorption and thickness swelling increased with increasing canola straws content in the panels. The experimental results have shown that production of general purpose and furniture grade particleboard used in dry conditions using canola straws is technically viable. The results of the study demonstrate that canola straws can be an alternative raw material source for particleboard industry.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the mechanical and physical properties of particleboard manufactured from Canola (Brassica napus) straws

Kord¹,

Zare

Hosseinzadeh

2016

Maderas, Cienc. tecnol.

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“…The good adhesion between the particles and successful curing occur at pH 4-5 (Lynam, 1969). Decreasing pH of the particles to the admissible levels for good adhesion and effective curing of urea formaldehyde adhesive caused better strength properties (Akyuz et al, 2010). Fig.…”

Section: Discussionmentioning

confidence: 97%

Effects of Ammonium Nitrate on Physico-mechanical Properties and Formaldehyde Contents of Particleboard

Aras

Kalaycıoğlu

Yel

et al. 2015

Procedia - Social and Behavioral Sciences

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In this study, the effects of hardener type (ammonium chloride and ammonium nitrate) and board thickness on the physical (density, thickness swelling and water absorption), mechanical (modulus of rupture, modulus of elasticity, internal bond strength, screw withdrawal resistance and surface durability) and formaldehyde content of particleboard were investigated. Three types panels were produced using 11-9% urea-formaldehyde adhesive (core and surface, respectively), with 650 kg/m 3 target density, 150°C pressing temperature, 20-24 kg/cm 2 pressure, and 6 min of pressing time. The analyses revealed that use of ammonium nitrate for particleboard manufacturing resulted in improved water absorption and thickness swelling properties after 24 h of immersion in water. In addition, the using ammonium nitrate has no significant effect by Modulus of rupture (MOR) and modulus of elasticity (MOE). However, internal bond strength, screw withdrawal resistance and surface durability properties were positively affected by using ammonium nitrate. Formaldehyde content value was decreased by about 5%. The study demonstrated that the boards made of ammonium nitrate meet the requirements for general standard and building materials.

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“…A fabricação de painéis é ecologicamente correta, pois os resíduos irão transformar-se em produtos úteis, assim conservando os recursos naturais [3] .…”

Section: Zau M D L Et Al -Avaliação Das Propriedades Química Fíunclassified

Avaliação das propriedades química, física e mecânica de painéis aglomerados produzidos com resíduo de madeira da Amazônia - Cumaru (Dipteryx Odorata) e resina poliuretana à base de óleo de mamona

et al. 2014

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Resumo: O beneficiamento de toras de madeira produz uma grande quantidade de resíduos, em torno de 60%, os quais em geral são aproveitados na geração de energia com a produção de cinzas e fuligem, ou dispostos em locais inadequados, gerando um problema ambiental sério. Nesse sentido, o presente estudo tem como objetivo principal produzir e avaliar física e mecanicamente painéis produzidos com resíduos do beneficiamento de madeira de Dipteryx odorata (Cumaru), espécie tropical cuja caracterização química e física também foi realizada. Para a produção dos painéis fez-se uso de um planejamento fatorial (2 2 +1) no qual foram analisadas as quantidades de resíduo e resina. Para a análise físico-mecânica, foram produzidos 24 painéis em diferentes condições de quantidade de resíduo (1000; 1300; 1500 g) e teor de resina (10; 12,5 e 15%). Os painéis foram cortados para obtenção dos corpos-de-prova para determinação de densidade, razão de compactação, inchamento e absorção (2 e 24 h); módulo de ruptura e de elasticidade em flexão estática, adesão interna e arrancamento de parafuso. Os painéis a 1500 g (10 e 15%) foram os que apresentaram os melhores resultados mecânicos, superiores ao mínimo especificado pela norma NBR 14810-3 (2006), evidenciando seu potencial na produção desses painéis. Palavras-chave: Resíduos de madeira, painéis aglomerados, resina poliuretana à base de óleo de mamona, propriedades químicas e mecânicas. Chemical, Physical and Mechanical Properties of Particleboard Produced with Amazon Wood Waste -Cumaru (Dipteryx Odorata) -and Castor Oil Based Polyurethane AdhesiveAbstract: Logs processing produce large quantity of waste, ca. 60% related to original solid volume. This material is usually employed in power generation with the production of ash and soot, or improperly deposed, causing environmental problems. In this context, the present study aims to produce and evaluate the physical and mechanical performance of particleboards produced with waste from the processing of Dipteryx odorata, a tropical wood species whose chemical and physical characterization was also performed. The production of particleboards was based on a factorial design (2 2 +1), in which the quantities of waste and resin were analyzed. For the physical and mechanical analysis, twenty-four panels were produced, using different amount of residues (1000, 1300, 1500 g) and resin content (10, 12.5 and 15%). Specimens were obtained from the panels in order to determine their: density; compaction ratio, thickness swelling and water absorption (2 and 24 h); modulus of rupture and modulus of elasticity in static bending; internal adhesion; and screw pullout. Panels with 1500g (10 and 15% of resin) were those with the best mechanical results, higher than the minimum specified by the NBR 14810-3 (2006), confirming their potential in producing particleboards. Avenida General Rodrigo Otávio, 6200, Coroado I, Manaus, AM, Brasil, Introdução O termo resíduo de madeira pode ser associado à palavra problema, pois geralmente a sua disposição ou utiliz...

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Effects of acidity of the particles and amount of hardener on the physical and mechanical properties of particleboard composite bonded with urea formaldehyde

Cited by 29 publications

References 10 publications

Evaluation of the mechanical and physical properties of particleboard manufactured from Canola (Brassica napus) straws

Evaluation of the mechanical and physical properties of particleboard manufactured from Canola (Brassica napus) straws

Effects of Ammonium Nitrate on Physico-mechanical Properties and Formaldehyde Contents of Particleboard

Avaliação das propriedades química, física e mecânica de painéis aglomerados produzidos com resíduo de madeira da Amazônia - Cumaru (Dipteryx Odorata) e resina poliuretana à base de óleo de mamona

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