Brightness Resistance
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. EVALUATION OF POLY(VINYL ALCOHOL) ADDITION EFFECT ON NANOFIBRILLATED CELLULOSE FILMS CHARACTERISTICS
ABSTRACT In this study, based on the mechanical shear treatment, the cellulosic pulp was fibrillated in nanofibrils dispersed in aqueous suspension. Nanofibrillated Cellulose (NFC) matrix - Polyvinyl Alcohol (PVA) nanocomposite films’ were prepared by casting from NFC/PVA suspension mixtures. The thermal and mechanical properties of the obtained films were
CERNE. Publicado em: 2020-03
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2. Influence of different cosmetic vehicles in mechanical and physical properties of hair treated with oxidative hair dyes
ABSTRACT Hair care products play a significant role in the cosmetic market and aim at improving hair brightness, breakage resistance, and color change. In this study, we analyzed the possibility of the formulation of oxidative dyes in different vehicles impacting the hair’s both mechanical and physical properties. Light brown and light blond dyes were prep
Braz. J. Pharm. Sci.. Publicado em: 07/06/2018
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3. Effect of age of the wood of eucalyptus in its chemical and pulpability, and bleachability and properties of the pulp / Efeito da idade da madeira de eucalipto na sua química e polpabilidade, e branqueabilidade e propriedades físicas da polpa
The concern about the quality of the wood that enters a cellulose factory has been focused on many studies, once the productive process and final product are under great influence of the original raw material. Considering the demand for younger trees, the effect of the age of the wood in the chemical constitution and the variables of the process, as well as
Publicado em: 2008
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4. influência da adição de diferentes concentrações de bismuto, níquel, estanho e alumínio sobre a espessura de camada, resistência à corrosão e brilho nos revestimentos galvanizados
Blackeart malleable iron samples were galvanized using twenty different zinc bath compositions. Each bath was made with different concentration and combinations of bismuth, nickel, tin and aluminium. These additions aim not only to substitute lead, a hazardous element to the environment, but also to reduce coating thickness, usually higher than established b
Publicado em: 2007
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5. Extração e uso de corantes vegetais da Amazônia no tingimento do couro de Matrinxã (Brycon amazonicu Spix &Agassiz, 1819)
A utilização de corantes naturais a partir de resíduos madeireiros, cascas de frutos, sementes, flores e outras matérias que preservam a flora Amazônica e não causam danos a saúde e ao ambiente podem ser usados como alternativa para tingimento de couro de peixe proveniente de peles que anteriormente eram descartadas. Dessa maneira, teve-se como objeti
Publicado em: 2007
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6. Poder e violência do discurso
This work has as its main objective to understand, in the context of the contemporary ideas about social politics and philosophy, the legislative project called Notices to the civilization of the índios bravos of the empire of Brazil, elaborated by José Bonifácio de Andrada e Silva, when deputy of São Paulos province, directed at the Constituency and Leg
Publicado em: 2005
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7. Estimations of temperature and humidity of the canopy in Amazon Forest using microwave data from SMMR sensor of Nimbus-7 satellite / Estimativas da temperatura e umidade do dossel na Floresta Amazônica, utilizando dados de microondas do sensor SMMR do satélite Nimbus-7
The forest canopy humidity and temperature of the region of Manaus (3o S, 60° W) have been estimated for the 1985 wet (April-May) and dry (July-August) seasons at 12:00 and 00:00 local standard time, from spaceborne microwave radiometer, along with microwave emission models. The satellite data consist of SMMR (Scanning Multichannel Microwave Radiometer) Nim
Publicado em: 1992
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8. Characterization of Palo Podrido, a Natural Process of Delignification in Wood †
Chemical and morphological changes of incipient to advanced stages of palo podrido, an extensively delignified wood, and other types of white rot decay found in the temperate forests of southern Chile were investigated. Palo podrido is a general term for white rot decay that is either selective or nonselective for the removal of lignin, whereas palo blanco d