Nanometer mesoporous silicon based xerogel hemostatic material and its preparation method and application

Nanometer mesoporous silicon based xerogel hemostatic material and its preparation method and application

  • CN 1,970,090 B
  • Filed: 09/14/2006
  • Issued: 11/25/2015
  • Est. Priority Date: 09/14/2006
  • Status: Active Grant
First Claim
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1. a unformed nanometer mesoporous silicon based xerogel hemostatic material, is characterized in that, comprises silicon oxide, calcium oxide and phosphorus pentoxide, and mol ratio is:

  • Silicon oxide;

    calcium oxide;

    phosphorus pentoxide=50 ~ 100;

    0 ~ 25;

    0 ~ 25, condition 0 to foreclose in this mol ratio,Wherein said xerogel hemostatic material is prepared by a method comprising the following steps;

    1. silicon source, phosphorus source and calcium source presoma are dissolved in ethanol water;

    2. drip hydrochloric acid, make system keep pH to be 2 ~ 8, stir 1 ~ 4 hour, obtain colloidal sol;

    3. said colloidal sol is carried out at 20 ~ 100 DEG C of temperature aging, ageing 5 ~ 200 hours, then dry;

    4. last, 500 ~ 700 DEG C of roasting temperatures 2 ~ 10 hours, desolvation, obtained product.

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