公开(公告)号：US20180194922A1

公开(公告)日：2018-07-12

申请号：US15751575

申请日：2016-07-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ryan E. Marx ,  Jay R. Lomeda ,  Wendy L. Thompson ,  Gezahegn D. Damte ,  Kent S. Tarbutton ,  Armin Kayser

IPC: C08K3/34 ,  C08K3/14 ,  C08K9/06 ,  C08L75/02 ,  C08L75/08 ,  C01B32/956

CPC classification number: C08K3/34 ,  B82Y30/00 ,  C01B32/956 ,  C01P2004/64 ,  C08K3/14 ,  C08K9/06 ,  C08L75/02 ,  C08L75/08 ,  C08L2201/08 ,  C08L2203/16 ,  C08L75/00

Abstract: 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 silicon carbide 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.