Castor Oil Polyurethane Resin
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Optimization of castor oil polyurethane resin content of OSB panel made of Dendrocalamus asper bamboo
RESUMO Este trabalho apresenta um estudo da otimização do teor de resina poliuretana (PU) a base de óleo de mamona para a produção de painéis de partículas orientadas (OSB) utilizando bambu (Dendrocalamus asper). Para este estudo, painéis OSB de densidade média (650 kg/m3) foram produzidos com diferentes teores de resina (8%, 10%, 12% e 15%). As par
Ciência Florestal. Publicado em: 2022
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2. USE OF RESIDUES FROM THE CELLULOSE INDUSTRY AND SUGARCANE BAGASSE IN PARTICLEBOARDS
ABSTRACT The use of alternative materials such as lignocellulosic residues in the production of particleboards has increased considering that these residues are produced in large volumes and often do not have an appropriate destination. This research studied the use of residues from cellulose industries, sugarcane bagasse, and castor oil-based polyurethane r
Eng. Agríc.. Publicado em: 2021-02
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3. Caracterização de painéis de partículas de média densidade feitos com resina poliuretana monocomponente à base de mamona
Resumo Dentre os fatores envolvidos na fabricação dos painéis destaca-se o tipo adesivo, em que o uso de novos pode resultar em boas propriedades aos materiais fabricados. Nesse contexto, esta pesquisa objetivou avaliar propriedades físicas e mecânicas de painéis de partículas fabricados com madeiras de Pinus sp. e de Eucalyptus grandis e unidas com r
Ambient. constr.. Publicado em: 2019-03
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4. Hybrid Sandwich Particleboard Made with Sugarcane, Pínus Taeda Thermally Treated and Malva Fibre from Amazon
A multilayer particleboard panels, consisted of sugarcane bagasse reinforced composite as core material and hybrid composites made with Pinus taeda particles and Malva fibres as facing materials, were designed and evaluated in this work. Tukey test was used to identify the effect of the facing material, considering different combinations of Pinus taeda parti
Mat. Res.. Publicado em: 18/12/2017
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5. Green polyurethane synthesis by emulsion technique: a magnetic composite for oil spill removal
Abstract After the consolidation of the Brazilian biodiesel industry, issues related to the final destination of the glycerin, the by-product from the biodiesel industrial process, drawing the attention of several researchers. There are several uses to this byproduct. Among them, the obtaining of polymers, such as polyurethane (PU), are very encouraged since
Polímeros. Publicado em: 2017-12
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6. Experimental study on waterproofing MDF with castor oil-based vegetal polyurethane
ABSTRACT This study aimed to analyze the waterproofing MDF with different coatings. For this, a comparative study was conducted with the following coatings on MDF: Vegetable polyurethane resin on castor oil-based, acrylic lacquer and marine varnish. To carry out the research, sewed up the samples in sequence, they received the coatings, and then we performed
Matéria (Rio J.). Publicado em: 10/08/2017
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7. Reuse of waste paper and rice hulls as filler in polymeric matrix composites
ABSTRACT Concerns for the environment are recurrent in our society, and research on low impact materials such as those produced from waste is an alternative. This work is based on the reuse of scrap paper and rice hulls aiming to increase the life cycle of these waste products and to find better destination. Composites with a volumetric filler content (dispe
Matéria (Rio J.). Publicado em: 20/07/2017
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8. Particleboard manufactured from Tauari (Couratari oblongifolia) wood waste using castor oil based polyurethane resin
Several wood species from the Amazon region are used in the manufacture of furniture, which leaves behind large amounts of waste (slabs, sawdust, sanding dust and bark), thus causing serious environmental impacts. An interesting alternative for the use of these wastes is the manufacture of particleboards. However, few studies have focused on the behavior of
Mat. Res.. Publicado em: 18/02/2014
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9. Oat hulls as addition to high density panels production
Wood-based panels have been widely used around the world in various segments of timber industry. Thus, alternative raw-materials have been systematically researched in order to reduce of wood demand in particleboard production. The aim of this work was to produce and evaluate particleboards of Eucalyptus grandis and oat hulls (Avena sativa), bonded under pre
Mat. Res.. Publicado em: 13/08/2013
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10. Accelerated artificial aging of particleboards from residues of CCB treated Pinus sp. and castor oil resin
Tests simulating exposure to severe weather conditions have been relevant in seeking new applications for particleboard. This study aimed to produce particleboards with residues of CCB (chromium-copper-boron oxides) impregnated Pinus sp. and castor oil-based polyurethane resin, and to evaluate their performance before and after artificial accelerated aging.
Mat. Res.. Publicado em: 22/01/2013
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11. Estudos mecânicos e elétricos em madeiras envoltas com manta geossintética e impregnadas com resina poliuretana / Mechanical and electrical analysis of wood wrapped in geosynthetic blanket impregnated with polyurethane resin
Nas redes de distribuição de energia, as cruzetas sofrem uma exposição direta a intempéries, particularmente à ação da umidade, o que acelera seu processo de degradação. A higroscopicidade da madeira facilita a absorção de água, com significativa perda de suas características mecânicas e elétricas. Para minorar os problemas relacionados a abs
Publicado em: 2011
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12. Tableros de partículas de bambú (Bambusa vulgaris Schrad) y resina poliuretana a base de aceite de rícino (Ricinus communis L.)
The aim of this study was to manufacture and evaluate particleboards made with two alternative materials, seeking to develop a sustainable production process. Particles from Bambusa vulgaris Schrad were used because of the fast production cycle of this species. The binder used was castor oil (Ricinus communis L.) based polyurethane resin, since it is partial
Ambiente Construído. Publicado em: 2010-12