نتایج جستجو برای: silicones

تعداد نتایج: 402  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2015
Adam Czajka Gavin Hazell Julian Eastoe

This article analyzes how the individual structural elements of surfactant molecules affect surface properties, in particular, the point of reference defined by the limiting surface tension at the aqueous cmc, γcmc. Particular emphasis is given to how the chemical nature and structure of the hydrophobic tails influence γcmc. By comparing the three different classes of surfactants, fluorocarbon,...

Journal: :Acta odontologica latinoamericana : AOL 2008
Marcelo Coelho Goiato Aldiéris Alves Pesqueira Daniela Micheline dos Santos Rosse Mary Falcón Antenucci Paula do Prado Ribeiro

The aim of this study was to evaluate the dimensional stability and detail reproduction of two silicones used for facial prosthesis, under the influence of chemical disinfection and storage time. Twenty-eight test specimens were obtained, half made of Silastic MDX 4-4210 silicone, and the other half of Silastic 732 RTV silicone. The test specimens were divided into 4 groups: Silastic 732 RTV an...

Journal: :Journal of cosmetic dermatology 2006
Isabele Van Reeth

In today's competitive skin care market, formulators strive to meet consumer demand for products that combine performance with superior esthetics. Although skin feel has always been a key esthetic parameter, consumers increasingly select products based on a more complete sensory experience, including texture, scent, visual esthetics in the container, tactile effects on application, and the perf...

Journal: :Materials 2023

Silicone elastomers play a crucial role in the field of maxillofacial prosthodontics. To maintain optimal hygiene, various disinfectants have been reported to clean silicone prostheses. Nevertheless, when selecting disinfectant, it is important consider not only its antimicrobial efficacy, but also compatibility with materials, minimize any potential impact on physical properties material surfa...

2013
Atul Tiwari

This review article is written on the investigations of nanomechanical properties of coatings by using nanoindentation techniques. The focus is on the studies that were conducted on epoxy polymer, silicones and their hybrid materials. The article describes a large number of developmental studies that are conducted on coatings. Materials properties such as nanoindentation hardness, modulus, scra...

2011
Jens LAMBRECHT Martin GRUNWALD Roland BÄRSCH

Cable accessories for mediumand high voltage applications contain field grading and field zoning parts or layers. These parts often consist of electrically conductive silicone elastomers. The electrical conductivity is achieved by using selected and long-term tested carbon blacks. Conductive layers and parts are used to provide safety against exposure, inner shielding and an electrical contact ...

2016
Mieszko Wieckiewicz Natalia Grychowska Marek Zietek Wlodzimierz Wieckiewicz

Background. Addition silicones are popular as dental impression materials and are used in bite registration procedures. Objective. This study aimed to compare the postsetting elasticities and other mechanical properties of thirteen addition silicone interocclusal recording materials. Materials and Methods. The following materials were investigated: Colorbite D, Futar D, Genie Bite, Jet Blue Bit...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2006
Somil C Mehta P Somasundaran Charles Maldarelli Ravi Kulkarni

Organic/inorganic hybrid silicone polymers are increasingly used in cosmetics, inks and paints, and fabric care applications owing to their special Si-O bond characteristics. Because of the presence of organic as well as inorganic groups, they show the properties of both, and the presence of hydrophobic as well as hydrophilic character makes them behave like a hybrid polymer. Though they are wi...

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