Preparation method of nano titanium dioxide reinforced polyurethane material

Preparation method of nano titanium dioxide reinforced polyurethane material

  • CN 106,243,680 B
  • Filed: 08/01/2016
  • Issued: 11/17/2020
  • Est. Priority Date: 08/01/2016
  • Status: Active Grant
First Claim
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1. A preparation method of a nano titanium dioxide reinforced polyurethane material is characterized by comprising the following steps:

  • step one, preparing nano titanium dioxide powder;

    adding a solution obtained by dissolving titanium tetrachloride in deionized water into an alkali solution, stirring to obtain a suspension, centrifugally washing the suspension until the supernatant is neutral to obtain a solid filter cake, ultrasonically dispersing the solid filter cake into water to obtain a white emulsion, placing the white emulsion into a homogeneous reactor for heat preservation reaction, and after the reaction is finished, centrifuging, washing and drying the obtained solid to obtain nano titanium dioxide powder;

    step two, preparing a polyurethane material component B;

    mixing conventional components for preparing the polyurethane material, adding nano titanium dioxide powder, heating and reacting under stirring to obtain a polyurethane material component B;

    step three, preparing the nano titanium dioxide reinforced polyurethane material;

    crosslinking and curing the polyurethane component B at 10-80 ℃

    for 0.5-24 h to obtain a nano titanium dioxide reinforced polyurethane material;

    the nano titanium dioxide obtained in the first step is in an anatase crystal form, and the particle size is 10-60 nm.

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