Silica aerogel preparation method and aerogel prepared using said method
AssigneeHuafeng (Tianjin) New Material Co., LTD.
InventorsWei Liu, Ye Sun, Zhensheng Li, Mengjun Liu
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Abstract
A preparation method for a silica aerogel, comprising the following steps: A) raw material containing a solid silicon source and an alkaline solution is used to produce an aerogel precursor after mixing; and B) the aerogel precursor is dried to obtain a silica aerogel. An improved silica aerogel preparation method, comprising the following steps: A) a cation exchange resin and a silicate solution are used as raw materials and mixed; B) the mixed material is allowed to stand to obtain an aerogel precursor; and C) the aerogel precursor is dried to obtain a silica aerogel.
Claims9
A method for preparing a silica aerogel, comprising the following steps:
- A) mixing silicon phosphate and sodium silicate in a closed container, after that adding water into the closed container to dissolve to get a solution A, then adding a gel core particle into the solution A in the closed container to get a precursor;
- the gel core particle is selected from one or more of white carbon black and silica powder;
- B) drying the precursor to obtain the silica aerogel.
A method for preparing a silica aerogel, comprising the following steps:
- (1) mixing silicon polyphosphate and sodium silicate in a closed container, after that adding water into the closed container to dissolve to get a solution A, then adding a gel core particle into the solution A in the closed container to get a precursor;
- the gel core particle is selected from one or more of white carbon black and silica powder;
- (2) drying the precursor to obtain a silica aerogel.
A method for preparing a silica aerogel, comprising the following steps:
- (1) mixing silicon polyphosphate, silicon phosphate and sodium silicate in a closed container, after that adding water into the closed container to dissolve to get a solution A, then adding a gel core particle into the solution A in the closed container to get a precursor;
- the gel core particle is selected from one or more of white carbon black and silica powder;
- (2) drying the precursor to obtain a silica aerogel.
Dependencies are inferred from the claim text.