Wood Productions and Renewable Materials: The Future Is Now

Blanchet, Pierre; Breton, Charles

doi:10.3390/f11060657

Cited by 8 publications

(7 citation statements)

References 13 publications

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“…Para alcanzar los objetivos fijados por el Acuerdo de París, la construcción de edificios debe ser neutra o negativa en carbono antes del año 2030 [15]. Desde la extracción de la materia prima hasta la demolición del edificio al final de su vida útil, la madera tiene una huella ambiental menor que la del acero o el concreto en cuanto al uso de energía, emisiones de efecto invernadero, emisiones al agua y producción de desechos sólidos [16].…”

Section: Antecedentesunclassified

“…En cambio, tanto los PRF como los MF no se separan aun cuando la capa está totalmente carbonizada, sin embargo, producen emisiones perjudiciales y no son fácilmente removibles o reciclables [29], [30]. Al finalizar el prensado se procede a impregnar la madera con inmunizantes como el anhídrido maleico para reducir la sensibilidad a la humedad de la madera [15]. Por último, para el envío se coloca una capa protectora sobre el elemento con protección a humedad y rayos UV.…”

Section: Antecedentesunclassified

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Barreras para introducir madera maciza en la construcción en Ecuador – estudio exploratorio

Fuentes,

Zaldumbide,

Guerra Moscoso

2023

ACI Av. Cienc. Ing. (Quito)

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La madera maciza en los últimos años ha generado gran interés en la industria de la construcción. Ya que, gracias a sus configuraciones como madera laminada (GLT y CLT), se ha podido construir edificios de gran altura con su estructura (vigas, columnas, losas y paredes) completamente hecha de madera. A medida que mejora la tecnología, la brecha entre el uso de hormigón armado, acero y madera será menor, es posible que dentro de unos años los edificios de madera sean tan comunes como sus análogos de hormigón y acero. En el Ecuador, la construcción en madera es bastante limitada. Su uso más común es con la caña guadua guadua angustifolia y maderas duras para casas de hasta dos pisos. La madera maciza puede cambiar esta percepción e introducirse como una alternativa al hormigón y el acero. Al ser relativamente nueva su implementación en el mundo, hay la oportunidad para desarrollar y explotar el potencial de una nueva industria en el país. Sin embargo, a pesar del potencial que tiene este material, es posible que su introducción no genere el impacto esperado y esto puede ocurrir por una amplia gama de factores. Este estudio desarrolló un cuestionario usando literatura existente sobre la madera maciza en relación a: la producción de materia prima, el proceso de manufactura, el proceso de construcción, el mantenimiento, el contexto cultural y el impacto ambiental. Con esto se realizaron 10 entrevistas a profesionales relacionados a la industria de la construcción. Las respuestas se transcribieron, analizaron y codificaron para identificar cuáles son las barreras percibidas de acuerdo con la introducción de este sistema constructivo en el Ecuador. Al final, el artículo propone caminos para profundizar la investigación académica así como el uso profesional de este material.

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Section: Antecedentesunclassified

Barreras para introducir madera maciza en la construcción en Ecuador – estudio exploratorio

Fuentes,

Zaldumbide,

Guerra Moscoso

2023

ACI Av. Cienc. Ing. (Quito)

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“…[ 1 ] In addition to providing economic and environmental benefits, biorefineries also contribute to employment opportunities, local development, and improved energy security. [ 2,3 ] Canada has always been at the forefront of green initiatives and is well positioned to be among the leaders in implementing clean technologies across the globe.…”

Section: Introductionmentioning

confidence: 99%

A review of Canadian wood conversion technologies for the production of fuels and chemicals

et al. 2023

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Canada has 347 million ha of forest cover, contributing to the potential large availability of wood‐based resources. Although Canada's forest sector contributed $23.7 billion to the national nominal gross domestic product (GDP) in 2019, the GDP contribution of the wood product manufacturing subsector shrank by 6%. To reposition the Canadian forest industry, new forest management practices and wood‐based conversion technologies should be applied. In this context, the use of woody biomass in biorefineries to produce clean energy, fuels, and chemicals is becoming increasingly significant. There is a need to understand the current status and challenges of the wood‐based biomass conversion technologies that have been and are being developed in Canada. This information will help decision‐makers in formulating and implementing forest sector‐related policies for a sustainable bioeconomy in Canada. This study is focused on a review of Canadian woody biomass conversion technologies. Our critical review identified considerable potential biomass conversion technologies specialized for woody feedstock, all in the Canadian setting. We focused on the prospects of revitalizing Canada's pulp and paper industry through the integration of pre‐treatment processes and biochemical technologies. The thermochemical conversion pathway was identified as the dominant route for woody feedstock valorization. The review also identified pathways with the potential to diversify the existing product mix that generate products from wood streams, such as chemicals and biomaterials. Most of the biochemical and thermochemical research done in institutional and multi‐institutional research collaborations from laboratory scale to industrial scale will boost the chances of the commercialization of a wood‐based biorefinery in Canada.

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“…In addition to the aforementioned major wood polymers, some minor wood components‐so called extractives‐ can be present which are often specific for wood species and responsible for some properties such as color and durability. Driven by the necessity for renewable and low emission products, there has been an increasing demand for wood‐based materials 1,2 . Developments in adhesive wood bonding allow for the production of efficient wood assemblies.…”

Section: Introductionmentioning

confidence: 99%

Acidic wood extractives accelerate the curing process of emulsion polymer isocyanate adhesives

Özparpucu

Sánchez‐Ferrer

Schuh

et al. 2022

J of Applied Polymer Sci

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Emulsion polymer isocyanate (EPI) adhesive is one of the most widely used structural adhesives in the woodworking industry. However, there has been a lack of knowledge on how the EPI-adhesive interacts with the chemical constituents of wood, in particular, with the wood extractives that are known to influence the bonding quality. In this study, the interactions of the EPIadhesive with the water extracts and selected extractives from European wood species were systematically investigated using different analytical techniques.While the alterations in the curing properties of the pure EPI-adhesive and EPI-adhesive-extract mixtures were revealed by in situ rheology and Fouriertransform infrared spectroscopy, evolved gas analysis, and pyrolysis-gas chromatography/mass spectrometry, the solid-state 13 C nuclear magnetic resonance were performed for analyzing the final chemical composition of the cured adhesive. Moreover, the influence of the extraction on the mechanical bonding performance was tested by tensile-shear tests. The study revealed significant interactions between the EPI-adhesive and tannin-rich, acidic wood extracts. The acidic chestnut and oak extracts catalyzed the curing reactions and led to a huge increase in the adhesive viscosity. These interactions might affect the bonding quality, for example, adhesive penetration depth and formation of bonding strength, therefore, careful attention is required when bonding acidic wood surfaces.

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Wood Productions and Renewable Materials: The Future Is Now

Cited by 8 publications

References 13 publications

Barreras para introducir madera maciza en la construcción en Ecuador – estudio exploratorio

Barreras para introducir madera maciza en la construcción en Ecuador – estudio exploratorio

A review of Canadian wood conversion technologies for the production of fuels and chemicals

Acidic wood extractives accelerate the curing process of emulsion polymer isocyanate adhesives

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