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Microfoams based on castor oil polyurethanes and vegetable fibers
(John Wiley & Sons Inc, 2007-09)
This work was focused on the production and characterization of microcellular polyurethane (PU) composites reinforced with pine wood-fibers or with hemp, which can be applied to the manufacture of car interior panels, or ...
Síntese de uma espuma composta de poliuretano/quitosana para adsorção do corante vermelho n° 40 em batelada e leito fixo
(Universidade Federal de Santa MariaBrasilEngenharia QuímicaUFSMPrograma de Pós-Graduação em Engenharia QuímicaCentro de Tecnologia, 2019-02-18)
Polyurethane foams (PU) may be used as the immobilization matrix for chitosan, in order to overcome/minimize the disadvantages with respect to chitosan as an adsorbent. However, the polyurethane and chitosan foams synthesized ...
Characterization and application of PZT/PU and graphite doped PZT/PU composite
(Elsevier B.V., 2014)
In vitro and in vivo biocompatibility of polyurethanes synthesized with castor oil polyols for biomedical devicesBiocompatibilidad in vitro e in vivo de poliuretanos sintetizados con polioles de ricino para dispositivos biomédicos
(Cambridge University Press, 21/01/2019)
Polyurethanes (PUs) were synthesized with polyols derived from castor oil and isophorone diisocyanate. The materials were evaluated for their mechanical properties using stress–strain curves, thermogravimetric analysis, ...
Polyurethane Foam Reinforced with Fibers Pineaplle Crown Biocomposites for Sorption of Vegetable Oil
(2020-08-01)
The concern in reducing the environmental impacts caused by human interference is increasing. Thus, the objective of this study was to generate a sustainable solution for sorption of vegetable oil. It was developed and ...
Preparação de resinas de poliuretana à base de óleo de mamona e dietanolamina
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em QuímicaFísico-Química; Química, 2007-10-30)
The aim of this work was the preparation of polyols from reactions between castor oil and dietanolamine to increase the hydroxyl content and the network degree in the products to application in electronic devices. The ...
ADDITION OF SUGARCANE BAGASSE FOR THE PRODUCTION OF PARTICLEBOARDS BONDED WITH UREA-FORMALDEHYDE AND POLYURETHANE RESINS
(Slovak Forest Products Research Inst, 2020-01-01)
The present study deals with a production of pine particleboards using the sugarcane bagasse content and using castor-oil based bicomponent polyurethane resin and urea-formaldehyde resin. The influence of incorporation of ...
Síntese e caracterização elétrica de compósitos poliméricos condutores com o poliuretano derivado de óleo de mamona como matriz
(Universidade Estadual Paulista (UNESP), 2014)
Painéis aglomerados produzidos com partículas de pinus e bagaço de cana empregando-se ureia formaldeido e poliuretano à base de mamona
(Universidade Estadual Paulista (Unesp), 2018-07-27)
O desenvolvimento de estudos para produção de derivados de madeira tem representado uma real alternativa para contribuir as políticas de sustentabilidade, principalmente de espécies arbóreas nativas. Nesse contexto, o ...
Produção e avaliação de painéis de partículas de fibra de coco, pínus e eucalipto aglutinadas com adesivo poliuretano derivado de óleo de mamona
(Universidade Estadual Paulista (Unesp), 2021-08-24)
A alta demanda da construção civil e indústria moveleira por painéis de madeira reconstituída aponta para um vasto campo a ser explorado. O emprego de materiais lignocelulósicos de diferentes origens em painéis de partículas, ...