High-molecular filter plate and its preparing process

High-molecular filter plate and its preparing process

CN
  • CN 1,115,184 C
  • Filed: 10/26/2000
  • Issued: 07/23/2003
  • Est. Priority Date: 10/26/2000
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of high-molecular filter plate, solid with certain elasticity and intensity, it is characterized in that:

  • have big or small basically identical and equally distributed filter opening, proportion 1.15~

    1.25, certain water-absorbent is arranged, be to use corresponding industrial chemicals;

    polyvinyl alcohol, glycerine, ethylene glycol, formaldehyde and auxiliary material form through following craftwork manufacture;

    at first producing with specific auxiliary material needs the water-soluble granular of order number material stand-by;

    After then polyvinyl alcohol being added water and making pasty state, and add quantitative glycerine, ethylene glycol, formaldehyde in proportion, after stirring well, add quantitative sulfuric acid again, after stirring well again, add quantitative water-soluble granular material more in proportion, stir well, the portion rate of each former material and polyvinyl alcohol is;

    polyvinyl alcohol;

    glycerine;

    ethylene glycol;

    formaldehyde;

    sulfuric acid;

    water miscible dried particles material=1;

    0.7~

    1.1;

    0.8~

    1.2;

    1;

    1.5~

    7;

    Pour forming mould then into, behind the static at a certain temperature certain hour, become sponge, take out back expressed water dissolubility granule materials in water, obtain spongy blank, this blank soaks in the mixed solution that formaldehyde, sulfuric acid and water are made into, heat certain hour after, the blank sclerosis, wash after the taking-up, drying, section arrangement gets product as required;

    Its portion rate of the mixed solution that formaldehyde, sulfuric acid and water are made into is;

    formaldehyde;

    sulfuric acid;

    water=2;

    1;

    3.

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