Comparative study of different technological processes on the physical-mechanical properties and flammability of wood plastic composite

López, Yonny Martínez; Gonçalves, Fabrício Gomes; Paes, Juarez Benigno; Gustave, Donatian; Segundinho, Pedro Gutemberg de Alcântara; Latorraca, João Vicente de Figueiredo; Silva, Emilly Soares Gomes da; Nantet, Anna Clara Theodoro; Filho, Cleyton Machado Prata

doi:10.1016/j.jobe.2022.104391

Cited by 2 publications

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“…There are reports on the development of wood-plastic composites (WPC) and rubber-wood-plastic composites (RubWPC), which have a low density and good mechanical properties [ 11 , 12 , 13 , 14 , 15 , 16 ]. The mechanical properties of WPC are determined by the interface adhesion between the wood and the polymer matrix.…”

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confidence: 99%

The Influence of Fly Ash on the Mechanical Properties of Water Immersed All Waste Composites

2022

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The paper presents new value-added composite materials prepared by recycling tire rubber, polyethene terephthalate (PET), high-density polyethene (HDPE), wood sawdust, and fly ash. The composites were manufactured through the compression molding technique for three temperatures (150 °C, 160 °C, and 190 °C) previously optimized. The addition of fly ash as reinforcement in polymer blends is a viable route to improve the composite” properties. The paper aims to assess the effect of fly ash on the mechanical properties and water stability of the new all waste composites considering their applications as outdoor products. The static tensile (stress-strain behavior) and compression properties of the composites were tested. The fly ash composites were characterized in terms of wetting behavior and surface energies (contact angle measurements); chemical structure of the new interface developed between composite” components (FTIR analysis), crystalline structure (XRD analysis), surface morphology and topography (SEM, AFM). The addition of fly ash promoted the development of the hybrid interfaces in the new composites, as FTIR analysis has shown, which, in turn, greatly improved the mechanical and water resistance. The novel all waste composites exhibited lower surface energies, larger contact angles, and smoother morphologies when compared to those with no fly ash. Overall, the study results have revealed that fly ash has improved the mechanical strength and water stability of the composites through the formation of strong hybrid interfaces. The study results show optimal water stability and tensile strength for 0.5% fly ash composites cured at 190 °C and optimal compressive strength with good water stability for 1% fly ash composite cured at 150 °C.

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Section: Introductionmentioning

confidence: 99%

The Influence of Fly Ash on the Mechanical Properties of Water Immersed All Waste Composites

2022

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“…Um compósito de madeira plástica pode ser fabricado a partir de diversos tipos de moldagem, por exemplo: injeção, compressão e extrusão [18,19]. Esses métodos e suas variáveis de processamento podem influenciar a morfologia e as propriedades dos compósitos [20].…”

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Desenvolvimento e caracterização de um compósito polimérico a partir do endocarpo de murumuru (Astrocaryum murumuru Mart.) e poliolefinas recicladas

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RESUMO A intensa atividade industrial na região Amazônica gera grande quantidade de resíduos, entre eles, os resíduos lignocelulósicos não madeireiros. O presente estudo avaliou a utilização do tegumento de murumuru (Astrocaryum murumuru Mart.) na produção de um compósito de madeira plástica, em que se utilizou a proporção 70/30 de polipropileno e tegumento de murumuru e 2% de anidrido maleico. Os compósitos de madeira plástica foram moldados por compressão em uma prensa termo hidráulica. O tegumento de murumuru foi caracterizado quanto ao seu teor de lignina e celulose e quanto a sua morfologia através de Microscopia Eletrônica de Varredura (MEV). Os compósitos foram avaliados quanto a sua morfologia por meio do MEV e quanto as suas propriedades mecânicas por meio do ensaio de resistência a flexão, onde as placas de PP puro apresentaram desempenho mecânico 21,7% superior ao compósito com 30% de resíduo, para valores de significância (P < 0,05) não houve diferença estática entre as placas. Os padrões de espectrometria de infravermelho indicaram que a composição da carga vegetal se caracteriza de constituintes como lignina, celulose e hemicelulose. Os resultados obtidos indicaram bom desempenho da madeira plástica, desta forma, o objetivo deste trabalho foi alcançado.

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Comparative study of different technological processes on the physical-mechanical properties and flammability of wood plastic composite

Cited by 2 publications

References 24 publications

The Influence of Fly Ash on the Mechanical Properties of Water Immersed All Waste Composites

The Influence of Fly Ash on the Mechanical Properties of Water Immersed All Waste Composites

Desenvolvimento e caracterização de um compósito polimérico a partir do endocarpo de murumuru (Astrocaryum murumuru Mart.) e poliolefinas recicladas

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