System for visual indication of mechanical damage
    6.
    发明授权
    System for visual indication of mechanical damage 有权
    机械损伤视觉指示系统

    公开(公告)号:US08846404B2

    公开(公告)日:2014-09-30

    申请号:US13168166

    申请日:2011-06-24

    IPC分类号: G01N31/22 G01N21/78 B29C73/22

    CPC分类号: G01N21/78

    摘要: A self-indicating material system may include a solid polymer matrix having a first color, a first plurality of capsules in the matrix, and a plurality of particles in the matrix. The first plurality of capsules includes a first reactant, and the plurality of particles includes a second reactant, which forms a product when in contact with the first reactant. When a crack forms in the polymer matrix, at least a portion of the first plurality of capsules is ruptured, the first and second reactants form the product in the matrix, and the portion of the polymer matrix containing the product has a second color different from the first color. A self-indicating material system may include a solid polymer matrix, a plurality of capsules in the matrix, and an activator in the matrix, where the polymer matrix includes a first polymer and has a first color, the plurality of capsules includes a polymerizer, and the activator is an activator for the polymerizer. When a crack forms in the polymer matrix, at least a portion of the plurality of capsules is ruptured, the polymerizer and the activator form a second polymer in the crack, and the second polymer has a second color different from the first color.

    摘要翻译: 自指示材料系统可以包括具有第一颜色的固体聚合物基质,基质中的第一多个胶囊和基质中的多个颗粒。 第一多个胶囊包括第一反应物,并且多个颗粒包括第二反应物,其在与第一反应物接触时形成产物。 当在聚合物基体中形成裂纹时,第一多个胶囊的至少一部分破裂,第一和第二反应物在基质中形成产物,并且含有产物的聚合物基质的部分具有不同于 第一种颜色。 自指示材料系统可以包括固体聚合物基质,基质中的多个胶囊和基质中的活化剂,其中聚合物基质包括第一聚合物并且具有第一颜色,所述多个胶囊包括聚合反应器, 并且活化剂是聚合反应器的活化剂。 当在聚合物基质中形成裂纹时,多个胶囊的至少一部分破裂,聚合器和活化剂在裂纹中形成第二聚合物,并且第二聚合物具有与第一颜色不同的第二颜色。

    Thermally Robust Capsule System, And Composites Including The Capsules
    10.
    发明申请
    Thermally Robust Capsule System, And Composites Including The Capsules 有权
    耐热胶囊系统,以及包括胶囊的复合材料

    公开(公告)号:US20130072596A1

    公开(公告)日:2013-03-21

    申请号:US13421986

    申请日:2012-03-16

    IPC分类号: C08L75/04 B01J13/20

    摘要: A method of making capsules includes forming a mixture including a core liquid, a polyurethane precursor system, a first component of a two-component poly(urea-formaldehyde) precursor system, and a solvent. The method further includes emulsifying the mixture, adding a second component of the two-component poly(urea-formaldehyde) precursor system to the emulsified mixture, and maintaining the emulsified mixture at a temperature and for a time sufficient to form a plurality of capsules that encapsulate at least a portion of the core liquid. The capsules made by the method may include a polymerizer in the capsules, where the capsules have an inner capsule wall including a polyurethane, and an outer capsule wall including a poly(urea-formaldehyde). The capsules may include in the solid polymer matrix of a composite material.

    摘要翻译: 制备胶囊的方法包括形成包括核心液体,聚氨酯前体体系,双组分聚(脲 - 甲醛)前体体系的第一组分和溶剂的混合物。 该方法还包括乳化混合物,向乳化混合物中加入双组分聚(脲 - 甲醛)前体体系的第二组分,并将乳化混合物保持在足以形成多个胶囊的温度和时间 封装至少一部分芯液。 通过该方法制备的胶囊可以包括在胶囊中的聚合反应器,其中胶囊具有包括聚氨酯的内胶囊壁和包含聚(脲 - 甲醛)的外胶囊壁。 胶囊可以包括在复合材料的固体聚合物基质中。