Self Cleaning Surface
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Superhydrophobic silicon fabricated by phosphomolybdic acid-assisted electrochemical etching
Controllable geometry silicon surfaces with superhydrophobicity are difficult to be fabricated without photolithography techniques. Superhydrophobic silicon surfaces with water contact angle larger than 150º and sliding angle less than 10º have been successfully fabricated by electrochemical etching strategy. Squarelike hole arrays with controllable geomet
Quím. Nova. Publicado em: 26/08/2019
-
2. Method to reduce soiling deposition on building envelope. / Método para redução de mancha nas vedações externas de edifícios.
Building roofs and façades usually show blackening surfaces after few years in large cities. On porous and silicious materials those soiling is caused by particles pollution depositions and mould growth, and the available methods available to prevent this phenomenum do not have a good performance along its service life. This thesis, based on an intensive la
Publicado em: 2009
-
3. Trabalho e genero : condições de saude das mulheres no setor de bijuterias e folheados / Labour and gender : health conditions of women the gold platted and fashion jewel industry
The objective of this transversal cut research was to check the health conditions of women working in the gold platted- and fashion jewel manufacture in Limeira, SP, Brazil. To do so, a profile of the subjects was designed taking into account the tasks performed by the workers, their exposure to cyanide and the self-referred complaints of health problems. A
Publicado em: 2008
-
4. RecuperaÃÃo dos isoladores de vidro das linhas de transmissÃo condenados por corrosÃo e avaliaÃÃo da aplicaÃÃo de nanotecnologia na reduÃÃo de acÃmulo de poluentes
As cadeias de isoladores de vidro sÃo largamente utilizadas tanto para isolar os condutores de eletricidade da terra como suportÃ-los mecanicamente nas torres das linhas de transmissÃo. Em termos construtivos, um isolador de vidro para linhas de transmissÃo de energia elÃtrica possui uma campÃnula metÃlica, disco de vidro temperado, pino metÃlico e a
Publicado em: 2008
-
5. SÃntese e caracterizaÃÃo de surfactantes glicosÃdicos a partir da amilose e alquil fenÃis extraÃdos do LCC. / Synthesis and characterization of glycosidic surfactantes from amylose and alkyl extracted phenols of the LCC.
Nonionic surfactants are synthesised from renewable raw materials such as fat acids and sugars. They are dermatological safe, biodegradable and provide excellent surface active properties, such as good wettability, good foaming production and good cleaning ability. The present work deals with the synthesis and characterization of alkyl polyglycosides where t
Publicado em: 2007
-
6. Cleaning treatment effects on self-etching adhesive bonding strength to unground dental enamel after salivary contact / "Efeito de tratamentos de limpeza na resistência adesiva de sistemas autocondicionantes ao esmalte dental íntegro e em contato com saliva humana"
This study evaluated the effect of different cleaning techniques in the adhesive bond strength of self-etching bonding systems to unground enamel after being in contact with human saliva. Ninety enamel fragments were obtained from dental crowns (n = 10) and the enamel surface of each fragment were kept in contact with fresh human saliva for 1 hour. Next, the
Publicado em: 2005
-
7. Evidence for self-cleaning in gecko setae
A tokay gecko can cling to virtually any surface and support its body mass with a single toe by using the millions of keratinous setae on its toe pads. Each seta branches into hundreds of 200-nm spatulae that make intimate contact with a variety of surface profiles. We showed previously that the combined surface area of billions of spatulae maximizes van der
National Academy of Sciences.