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58 条记录 (耗时 0.022 秒)

    Surface functionalization of cellulose and other substrates
    14.
    发明授权
    Surface functionalization of cellulose and other substrates 有权

    公开(公告)号：US11572417B2

    公开(公告)日：2023-02-07

    申请号：US16870829

    申请日：2020-05-08

    申请人： University of Rhode Island Board of Trustees

    发明人： Teresa L. Mako ,  Mindy Levine ,  Jason Dwyer

    IPC分类号： C08B15/00 ,  G01N21/78 ,  G01N31/22 ,  G01N21/25 ,  G01N21/17

    摘要： The invention provides a mild procedure for the functionalization of cellulose and other substrates with a detection reagent such as N-(1-naphthyl)ethylenediamine and is able to achieve much higher functionalization density than previously reported. A paper-based device created using cellulose functionalized according to the invention allowed for much lower detection limits for nitrite in various kinds of water samples than have been seen using paper-based devices. In addition, grafting of N-(1-naphthyl)ethylenediamine to cellulose improved the stability of the N-(1-naphthyl)ethylenediamine in the presence of moisture and light.

    POLYMERIC COMPOSITIONS AND CORROSION RESISTANT SYSTEMS
    15.
    发明申请
    POLYMERIC COMPOSITIONS AND CORROSION RESISTANT SYSTEMS 有权

    公开(公告)号：US20220259433A1

    公开(公告)日：2022-08-18

    申请号：US17588674

    申请日：2022-01-31

    申请人： University of Rhode Island Board of Trustees

    发明人： Sumeru Nayak ,  Sumanta Das

    IPC分类号： C08L91/00 ,  C08K3/04 ,  C09D7/61 ,  C09D5/10 ,  C09D191/00

    摘要： A composition and method of synthesizing a composition from organic oils and industrial byproducts for use as a corrosion inhibitor coating is disclosed. The synthesis of a rapid setting ionomer is the result of iron-induced polymerization of oleic and linoleic acids, where an alkaline ionomeric reaction is facilitated with a small fraction of pure aluminum leaf at room temperature. At least one alkaline reagent is employed with at least one metallic additive to form metal complex ionomers that form a solid polymer. The resulting ionomer is stirred and applied on the substrate as a surface coating and it starts setting in less than thirty minutes.

    Resistance temperature detector (RTD) for ceramic matrix composites
    17.
    发明授权
    Resistance temperature detector (RTD) for ceramic matrix composites 有权

    公开(公告)号：US10782190B1

    公开(公告)日：2020-09-22

    申请号：US16221270

    申请日：2018-12-14

    申请人： University of Rhode Island Board of Trustees

    发明人： Otto J. Gregory ,  Kevin Rivera ,  Matthew Thomas Ricci

    IPC分类号： G01K7/22 ,  C04B35/83 ,  G01K7/08 ,  G01K7/02 ,  C04B41/91 ,  C04B41/45 ,  C04B41/50 ,  C04B35/80

    摘要： A resistance temperature detector (RTD) that uses a ceramic matrix composite (CMC), such as a silicon carbide fiber-reinforced silicon carbide matrix, as an active temperature sensing element, which can operate at temperatures greater than 1000° C. or even 1600° C. Conductive indium tin oxide or a single elemental metal such as platinum is deposited on a dielectric or insulating layer such as mullite or an environmental barrier coating (EBC) on the substrate. Openings in the layer allow etching of the CMC surface in order to make high quality ohmic contacts with the conductive material, either directly or through a silicide diffusion barrier such as ITO. The RTD can measure both temperature and strain of the CMC. The use of an EBC, which typically is deposited on the CMC by the manufacturer, as the insulating or dielectric layer can be extended to other devices such as strain gages and thermocouples that use the CMC as a sensing element. The EBC can be masked and etched to form the openings. A conductive EBC can be used as the silicide diffusion barrier.