A kind of preparation method of starch-based biological latex

A kind of preparation method of starch-based biological latex

  • CN 102,558,614 B
  • Filed: 02/16/2012
  • Issued: 08/19/2015
  • Est. Priority Date: 02/16/2012
  • Status: Active Grant
First Claim
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1. the preparation method of a starch-based biological latex, it is characterized in that with starch or starch derivative for main raw material, after acidolysis, oxidation, gelatinization process, cooling adjust pH, and add softening agent, thinner, defoamer in order, obtain described starch-based biological latex;

  • The preparation formula of described starch-based biological latex is in mass;

    Dry starch or starch derivative 100Water 80-150Acid 0.5-5Oxygenant 1-6Softening agent 1-10Thinner 1-10Defoamer 0.5-5;

    Concrete steps are;

    Starch or starch derivative and acid solution are made in the starch milk of starch on dry basis 45 ~ 55%, acidolysis 1-3h at 40 ~ 65 DEG C of temperature, adopt stage temperature control strategy, control temperature, at 70 ~ 100 DEG C, continues acidolysis 1 ~ 3h, add oxygenant and be oxidized 0.25-1h at a certain temperature, cooling regulates pH, adds softening agent, thinner and defoamer successively, continues cooling after stirring, 30 DEG C of dischargings, pack the starch-based biological latex got product;

    Stage temperature control strategy adopts two benches temperature to control or three phase temperature control.

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