Results 31 to 40 of about 4,601 (153)
Preparação e caracterização de poliuretanos contendo diferentes quantidades de óleo de baru
Polímeros, 2016 Resumo O óleo de baru (OB) é uma matéria-prima renovável proveniente do cerrado brasileiro que possui elevado percentual de insaturação. O objetivo principal do trabalho foi o estudo das espumas de poliuretano com diferentes quantidade de óleo de baru ...
Elizabeth Luiza de Almeida +4 more
doaj +1 more source
International Wound Journal, Volume 2, Issue 1, Page 40-43, March 2005., 2005 Le pansement hydrocellulaire délivrant de l’argent Contreet Foam induit/génère une cicatrisation accélérée des ulcères de jambe veineux colonisés critiquement: une étude randomisée contrôlée Objectifs: l’étude comparait les effets d’un pansement hydrocellulaire présentant des capacities à délivrer de l’argent(Contreet Foam) avec un pansement ...
wiley +1 more source
Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos
Química Nova, 2013 The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for
Roberta Jachura Rocha +4 more
doaj +1 more source
Nuevos polímeros acrílicos sensibles a estímulos derivados de la morfolina y pirrolidina [PDF]
, 2007 Este artículo describe la preparación de nuevos polímeros acrílicos sensibles a estímulos (pH ) derivados de la morfolina y pirrolidina usando agua como disolvente.
Elvira, Carlos +2 more
core +2 more sources
Pressure sores with associated spasticity: a clinical challenge
International Wound Journal, Volume 2, Issue 1, Page 43-45, March 2005., 2005 Escarres associées à la spasticité: un challenge clinique Les escarres sont fréquemment rencontrées en pratique médicale, particulièrement chez les patients âgés. Les patients paraplégiques et quadriplégiques, en particulier ceux souffrant de lesions médullaires sont encore plus à risque de developer des escarres. A l’inverse des patients gériatriques,
wiley +1 more source
Polímeros, 2010 O Brasil é mundialmente renomado como um líder na extração de petróleo, em águas profundas e ultra profundas. Dentro da cadeia produtiva, grande parte do petróleo e do gás produzido é escoada através de dutos flexíveis que conectam os poços de produção ...
Fabio G. Aquino +4 more
doaj
Química Nova, 2014 The aim of this work was to synthesize a polyurethane polymer matrix using polyols as a raw material to obtain a binder such as the hydroxyl terminated polybutadiene (HTPB) pre-polymer in energetic material formulation.
Marcelo Clemente +3 more
doaj +1 more source
Desarrollo de los criterios de reparabilidad de marcas premium en función al sustrato [PDF]
, 2017 The development of the project it began with the summary of information relating to the materials and present processes in the vehicles of premium brands, suppliers specialized in own equipments of this segment of vehicles and own information of the ...
Acevedo Leyva, Mario Alberto +1 more
core
Metodología eficiente y compacta para la síntesis de Poliuretanos y Poliuretano-Ureas Segmentados
JOURNAL OF BASIC SCIENCESSegmented polyurethane-ureas (PUU) are thermoplastic polymers used in tissue engineering due to their biocompatibility, biodegradability, and adjustable mechanical properties. PUU synthesis is carried out using the prepolymer method. In this work, an efficient and compact methodology for PUU synthesis was developed, employing PCL-diol, HMDI, and BDA ...
Carlos Daniel López Aguilar +5 more
openaire +1 more source