Polyurethane Coatings
نویسندگان
چکیده
منابع مشابه
Polyurethane Organosilicate Nanocomposites as Blood Compatible Coatings
Polymer clay nanocomposites (NCs) show remarkable potential in the field of drug delivery due to their enhanced barrier properties. It is hypothesised that well dispersed clay particles within the polymer matrix create a tortuous pathway for diffusing therapeutic molecules, thereby resulting in more sustained release of the drug. As coatings for medical devices, these materials can simultaneous...
متن کاملPolyurethane Coatings Reinforced by Halloysite Nanotubes
The pencil hardness of a two-component polyurethane coating was improved by adding halloysite nanotubes to the recipe at a weight fraction of less than 10%. The pencil hardness was around F for the unfilled coating and increased to around 2H upon filling. It was important to silanize the surface of the filler in order to achieve good coupling to the matrix. Sonicating the sample during drying a...
متن کاملCharacterization of porous, dexamethasone-releasing polyurethane coatings for glucose sensors.
Commercially available implantable needle-type glucose sensors for diabetes management are robust analytically but can be unreliable clinically primarily due to tissue-sensor interactions. Here, we present the physical, drug release and bioactivity characterization of tubular, porous dexamethasone (Dex)-releasing polyurethane coatings designed to attenuate local inflammation at the tissue-senso...
متن کاملEnvironmental Friendly Polyurethane Coatings Based On Hyperbranched Resin
Water borne polyurethane (PU) based on newly prepared hyperbranched poly (amine-ester) (HBPAE) was applied and evaluated as organic coating material. HBPAE was prepared through one-pot synthesis between trimethylol propane as a core and AB2 branched monomer which was obtained via Michal addition of methyl methacrylate (MMA) and diethanol amine (DEA). PU was prepared from HBPAE using different r...
متن کاملSurface free energy of polyurethane coatings with improved hydrophobicity
The polarity of polyurethane coats was studied on the basis of the goniometric method for determination of wetting angle values, on the basis of calculated surface free energy (SFE) values by the van Oss-Good and Owens-Wendt methods, and on the basis of polarity measurements with the use of the (1)H NMR spectra. Test polyurethanes were synthesised in the reaction of methylene diphenyl 4,4'-diis...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Colour Material
سال: 1976
ISSN: 0010-180X
DOI: 10.4011/shikizai1937.49.167