Polyurethane/urea silicon carbide nanocomposite

• Main Authors: DAMTE GEZAHEGN D, TARBUTTON KENT S, LOMEDA JAY R, KAYSER ARMIN, THOMPSON WENDY L, MARX RYAN E
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Polyurethane/urea nanocomposites, precursors thereof, and methods of their manufacture and use are provided, the nanocomposites comprising: a) a polyurethane/urea polymer matrix, and b) surface modified silicon carbide nanoparticles dispersed within and covalently bound to a polyurethane/urea polymer comprising the polyurethane/urea polymer matrix. In some embodiments, the surface modified siliconcarbide nanoparticle comprises a silicon carbide core and a linking group covalently bound to the surface of the silicon carbide core and covalently bound to the polyurethane/urea polymer. In some embodiments, the linking group is a moiety according to Formula where the urethane group of the linking group is covalently bound to the polyurethane/urea polymer; and where each open valence of the silicon atom of the linking group is bound to a hydroxyl group (-OH) or is covalently bound to the surface of the silicon carbide core through an oxygen atom. 本发明提供聚氨酯/脲纳米复合材料、其前体以及它们的制造和使用方法，该纳米复合材料包含：a)聚氨酯/脲聚合物基体，和b)表面改性的碳化硅纳米