Heat curing composition containing combination of amphiphilic type block copolymer and polyol and heat setting product of heat curing composition

Heat curing composition containing combination of amphiphilic type block copolymer and polyol and heat setting product of heat curing composition

  • CN 105,131,525 A
  • Filed: 03/09/2009
  • Published: 12/09/2015
  • Est. Priority Date: 03/09/2009
  • Status: Active Application
First Claim
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1. a heat curable composition, described heat curable composition comprises:

  • (a) at least one amphiphilic block copolymers, wherein said amphiphilic block copolymers be containing at least one epoxy resin can miscible block segments and at least one epoxy resin can not the amphiphilic polyether block copolymer of miscible block segments;

    Wherein saidly miscible block segments can not comprise at least one polyether structure, condition describedly the described polyether structure of miscible block segments can not contain at least one or the multiple alkylene oxide monomer units with at least four carbon atom, wherein said amphiphilic block copolymers (a) has the molecular weight of 1000 to 30000(b) at least one polyvalent alcohol, wherein said polyvalent alcohol is the alicyclic polyol with 6 to 20 carbon atoms, wherein said alicyclic polyol comprises 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol or their mixture, wherein % by weight of 1,4 cyclohexane dimethanol is 0 % by weight to 100 % by weightC () at least one per molecule on average contains the epoxy resin of at least 2 oxyethane rings,D () at least one per molecule on average contains the anhydride hardener of at least 1 anhydride rings, and(e) at least one catalyzer,Wherein said amphiphilic block copolymers (a) with based on the weight of whole organic compound be 0.1 % by weight to 20 % by weight amount exist,Described polyvalent alcohol (b) with based on the weight of whole organic compound be 0.1 % by weight to 40 % by weight amount exist,Described amphiphilic block copolymers (a) is selected from 20;

    1 to 1;

    40 with the weight ratio of described polyvalent alcohol (b),The mol ratio of described epoxy resin (c) and anhydride hardener (d) is selected between 2;

    1 to 1;

    2, andWherein said heat curable composition forms thermosetting product after hardening, and described thermosetting product demonstrates the second-order transition temperature higher than 70 DEG C;

    And when preparing described heat curable composition with the silica filler of 50 % by weight, described thermosetting product demonstrate by critical stress intensity factor K 1cthe fracture toughness property of value meter is higher than 1.0MPa.m 1/2.

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