Thermoset Resin Composite Materials Comprising Inter-Laminar Toughening Particles
    4.
    发明申请
    Thermoset Resin Composite Materials Comprising Inter-Laminar Toughening Particles 审中-公开
    包含层间增韧颗粒的热固性树脂复合材料

    公开(公告)号:US20140135443A1

    公开(公告)日:2014-05-15

    申请号:US14076640

    申请日:2013-11-11

    Abstract: A resin system containing: (i) a thermosetting resin precursor component comprising one or more multi-functional epoxy resin precursor(s) having a functionality of at least three, preferably wherein said precursor(s) are selected from a tri-functional epoxy resin precursor and/or a tetra-functional epoxy resin precursor; (ii) a thermoplastic polyamide particle component wherein the polyamide particles have a melting temperature TPA; and (iii) one or more curing agent(s), wherein the resin precursor component, the thermoplastic particle and the curing agent(s) are selected such that gelation of the epoxy matrix during the cure cycle of the resin system occurs at a gelation temperature TGEL which is at or below TPA.

    Abstract translation: 一种树脂体系,其包括:(i)热固性树脂前体组分,其包含一种或多种官能度至少为3的多官能环氧树脂前体,优选其中所述前体选自三官能环氧树脂 前体和/或四官能环氧树脂前体; (ii)热塑性聚酰胺颗粒组分,其中聚酰胺颗粒具有熔融温度TPA; 和(iii)一种或多种固化剂,其中选择树脂前体组分,热塑性颗粒和固化剂,使得在树脂体系的固化循环期间环氧基体的凝胶化发生在凝胶化 温度TGEL等于或低于TPA。

    COMPOSITES WITH INTERLAMINAR TOUGHENING PARTICLES AND METHOD OF MAKING THE SAME

    公开(公告)号:US20190134926A1

    公开(公告)日:2019-05-09

    申请号:US16183970

    申请日:2018-11-08

    Abstract: A fiber-reinforced polymeric composite structure having chemically active thermoset particles positioned in an interlaminar region between adjacent layers of reinforcement fibers and method of making the same. Upon curing of the composite structure, the chemically active functional groups on the thermoset particles form covalent bonds with the matrix resin surrounding the particles. In one embodiment, the particles are formed of a partially cured thermoset polymer with a degree of cure of less than 100%. In another embodiment, the particles are derived from a thermosettable resin composition, wherein the stoichiometry is such that there is a deficiency or an excess in the amount of curing agent that is necessary for reacting with 100% of the thermoset resin component. In some embodiments, the composition of the chemically active thermoset particles is the same or substantially the same as that of the matrix resin of the composite structure.

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