pH SENSITIVE QUANTUM DOTS FOR USE AS CURE INDICATORS

    公开(公告)号:US20190153165A1

    公开(公告)日:2019-05-23

    申请号:US16255656

    申请日:2019-01-23

    Abstract: Disclosed is a curable sealant composition including: (i) a thiol-terminated prepolymer and/or monomers thereof, wherein the thiol-terminated prepolymer is a polythioether or a polysulfide; (ii) an “ene” crosslinker having a molecular weight of about 100 to about 5000; and (iii) a pH indicator molecule including a quantum dot functionalized with a pH-responsive ligand. Methods for determining a sufficient cure state of a composition by combining the thiol-terminated prepolymer and/or monomers thereof and the “ene” crosslinker with a pH indicator molecule, including a quantum dot functionalized with a pH-responsive ligand, and (ii) then subjecting a resultant mixture of (i) to curing conditions until the mixture changes its color are also disclosed.

    Systems and methods for passive deicing
    40.
    发明授权
    Systems and methods for passive deicing 有权
    被动除冰的系统和方法

    公开(公告)号:US09199741B2

    公开(公告)日:2015-12-01

    申请号:US14201344

    申请日:2014-03-07

    CPC classification number: B64D15/00 C09K3/18

    Abstract: Global icephobic performance of a passive deicing structure may be achieved by including one or more ice nucleating zones that are configured, preselected, and/or arranged to promote selective formation of ice. Ice nucleation zones may be configured, preselected, and/or arranged to form ice that is weakly adherent and, hence, may be removed by sufficient shear force. Ice nucleation zones typically include nucleating particles to promote selective ice formation. Passive deicing structures typically include both ice nucleation zones and ice resisting zones, arranged to facilitate ice removal by shear force. Passive deicing structures may be used on apparatuses such as vehicles (e.g., aircraft) to mitigate the effects of ice formation on exposed surfaces.

    Abstract translation: 被动除冰结构的全球性的积雪性能可以通过包括一个或多个构成,预选和/或布置成促进冰的选择性形成的冰成核区来实现。 冰成核区可以被构造,预选和/或布置成形成弱粘附的冰,因此可以通过足够的剪切力去除。 冰成核区域通常包括成核颗粒以促进选择性冰的形成。 被动除冰结构通常包括冰成核区和防冰区,布置成便于通过剪切力除冰。 被动除冰结构可用于诸如车辆(例如飞行器)的装置上以减轻暴露表面上的冰的影响。

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