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    • 1. 发明公开
    • THERMOMECHANICALLY REPROCESSABLE EPOXY COMPOSITES AND PROCESSES FOR THEIR MANUFACTURING
    • Thermomechanisch wiederverarbeitbare Epoxidverbundwerkstoffe und Verfahren zur Herstellung davon
    • EP2949679A1
    • 2015-12-02
    • EP14382184.1
    • 2014-05-26
    • Fundación Cidetec
    • Odriozola, IbonRuiz De Luzuriaga, AlaitzRekondo, AlaitzMartin, RobertoMarkaide, NereaCabanero, GermanGrande, Hans-Jürgen
    • C08G59/40C08J5/24
    • C08J5/24C08G59/4064C08J2363/00C08J2463/00C08K5/375C08L63/00
    • The composite comprises (i) a reinforcement phase comprising fibres, this phase being in a volume percentage comprised from 25 to 70% with respect to the total volume of the composite, and (ii) a matrix phase which is in a volume percentage comprised from 30 to 75% with respect to the total volume of the composite, being the sum of volumes of both phases forming the composite 100%, and wherein the matrix phase comprises a cured epoxy resin in a percentage comprised from 50-100% by weight with respect to the total weight of the matrix phase, and the cured epoxy resin being obtainable by: (a) mixing an epoxide-functionalised resin with a functionality equal to or higher than 2 with a cross-linking agent of formula (I), and (b) curing the reaction mixture at a temperature comprised from 10 to 200 °C, this step being performed in the absence of a catalyst.
      The composite is reprocessable, reparable and recyclable and shows mechanochromic behaviour, being useful in the manufacture of an article.

               Ar-S-S-Ar     (I)
    • 复合材料包括(i)包含纤维的增强相,该相的体积百分比相对于复合材料的总体积为25至70%,和(ii)基体相的体积百分比为 相对于复合材料的总体积为30至75%,其为形成复合材料的两相的体积的总和100%,并且其中基质相包含固化的环氧树脂,其含量为50-100重量% 相对于基质相的总重量,固化的环氧树脂可以通过以下方法获得:(a)用式(I)的交联剂将具有等于或高于2的官能团的环氧官能化树脂混合,以及 (b)在10至200℃的温度下固化反应混合物,该步骤在不存在催化剂的情况下进行。 复合材料是可再加工的,可修复的和可回收的,并显示出机械色彩行为,用于制造制品。 €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒAr-S-S-Ar€ƒ€ƒ€ƒ€ƒ(I)