Method for preparing titanium dioxide fiber with excellent photocatalytic performance, precursor and spinning solution by virtue of one-step solvent method

Method for preparing titanium dioxide fiber with excellent photocatalytic performance, precursor and spinning solution by virtue of one-step solvent method

  • CN 104,961,763 A
  • Filed: 07/17/2015
  • Published: 10/07/2015
  • Est. Priority Date: 07/17/2015
  • Status: Active Application
First Claim
Patent Images

1. a step solvent method prepares the method for titania fiber presoma, comprises step as follows:

  • (1) be titanium tetrachloride according to mol ratio;

    water;

    part;

    precipitate and separate agent=1;

    (2.5 ~ 3.5);

    (1.8 ~

         3);

    the ratio of (1.6 ~ 2.3), take titanium tetrachloride, water, part, precipitate and separate agent respectively, 0 ~ 50 DEG C, join in solvent under agitation condition, reaction 2 ~ 12h, obtain the mixture of titania fiber presoma and hydrochloride, suction filtration removing hydrochloride, obtains titania fiber precursor solution;

    Described solvent is that methyl alcohol, ethanol are or/and Virahol;

    Described part is methyl ethyl diketone or methyl aceto acetate;

    Described precipitate and separate agent is that quadrol, diethanolamine are or/and trolamine;

    (2) step (1) gained titania fiber precursor solution is removed solvent 20 ~ 50 DEG C of underpressure distillation, obtain titania fiber presoma.

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