Special high-strength modified phenolic resin adhesive for precoated sand and preparation method of special high-strength modified phenolic resin adhesive

Special high-strength modified phenolic resin adhesive for precoated sand and preparation method of special high-strength modified phenolic resin adhesive

  • CN 105,348,461 A
  • Filed: 12/29/2015
  • Published: 02/24/2016
  • Est. Priority Date: 12/29/2015
  • Status: Active Application
First Claim
Patent Images

1. the High-Intensity of Modified Phenol Resin binding agent knot agent that precoated sand is special, it is characterized in that, this binding agent comprises following composition:

  • phenol;

    Formaldehyde;

    Catalyzer;

    Properties-correcting agent 1;

    Properties-correcting agent 2;

    Silane;

    Wherein, the mol ratio of phenol and formaldehyde is 1;

    0.7 ~ 0.8, and the add-on of properties-correcting agent 1 is 3 ~ 30% of phenol quality, and the add-on of properties-correcting agent 2 is 0.5 ~ 10% of phenol quality, and the add-on of silane is 0.3 ~ 0.8% of phenol quality.

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