Polyurethane Resins From Castor Oil
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Estudo histológico dos tecidos conjuntivo e osteóide em enxertos ósseos com polímero de mamona : estudo experimental em ratos / Histological study of connective and osteoid tissue in bone grafts with castor oil polymer : experimental study in rats
The reconstruction of great bone loss defects represents a challenge for reconstructive surgery. To reconstruct these defects it is necessary to create conditions to stimulate new bone formation, in order to block the connective healing tissue growth towards the bony defect, which blocks the osteogenesis. The autogenous grafts are inconvenient, because they
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2011
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2. Preparação de resinas de poliuretana à base de óleo de mamona e dietanolamina
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 polyols and the mixtures obtained were characterized by nuclear magnetic ressonance. Castor oil (CO) is a natural triglyceride - based polyol
Publicado em: 2007
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3. Wood cross-arms coated with polyurethane resin - tests and numerical simulations
Brazil's electric power utilities have commonly employed native timbers as the main material for manufacturing cross-arms for distribution lines. However, the increasingly high costs of these timbers and Brazil's new environmental laws have contributed to change this situation, spurring research on new materials for application in transmission and distributi
Materials Research. Publicado em: 2006-03
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4. Chapa de media densidade (MDF) fabricada com poliuretana mono-componente derivada de oleo de mamona - caracterização por metodo destrutivo e por ultra-som / Medium density fiberboard manufactured with polyurethane derived from castor oil - characterization of destructive and nondestructive testing
While employing low cost reforestation lumber, the technologies of the fabrication of fiber plates denominated ?Medium Density Fiberboard? (MDF) offer to several industrial sectors the opportunity to aggregate worth to species with little or no commercial interest, opening to them the possibility of promising profitable investments. However, the phenolic res
Publicado em: 2003