Aerogel particle and method of producing the same

Abstract

An aerogel particle is produced by following processes. A mixing process: an alkoxysilane compound is mixed with an organic solvent to form a first mixed solution. A hydrolysis process: an acid catalyst is added into the first mixed solution to perform a hydrolysis reaction, thereby obtaining a sol. A condensation process: an alkali catalyst is added into the sol to perform a condensation reaction, and a hydrophobic dispersion solvent is added and stirred during the condensation process, thereby subjecting sol to be gelled when it is stirred, further producing the aerogel particle with a uniform structure.

What is claimed is: 
     
         1 . A method of producing an aerogel particle, comprising:
 performing a mixing process, wherein an alkoxysilane compound is mixed with an organic solvent to form a first mixed solution;   performing a hydrolysis process to the first mixed solution, wherein an acid catalyst is added into the first mixed solution to perform a hydrolysis reaction, thereby forming a sol; and   performing a condensation process to the sol, wherein an alkali catalyst is added into the sol to perform a condensation reaction, and a hydrophobic dispersion solvent is added and stirred during the condensation process, thereby subjecting the sol to be gelled when it is stirred, further producing a second mixed solution including the aerogel particle.   
     
     
         2 . The method of producing an aerogel particle of  claim 1 , wherein the hydrophobic solvent is selected from a group consisting of ketone, ether, ester, aromatic and alkane. 
     
     
         3 . The method of producing the aerogel particle of  claim 2 , after the condensation process is performed, the method further comprises:
 performing a post-treatment process to the second mixed solution, wherein the aerogel particle is filtered out by a filter and washed by a mixed solution including ethanol and water, and then the aerogel particle is dried at 100° C. to 115° C. in vacuum.   
     
     
         4 . The method of producing the aerogel particle of  claim 2 , after the condensation process is performed, the method further comprises:
 performing a hydrophobic modified process to the second mixed solution, wherein the second mixed solution is heated to evaporate the organic solvent, and a chloryl organic molecule is added to subject the chloryl organic molecule to react with a hydroxyl group of the aerogel particle, thereby subjecting the aerogel particle to be hydrophobic, further preventing the aerogel particle from being broken by the hydrophobic solvent.   
     
     
         5 . The method of producing the aerogel particle of  claim 4 , wherein the chloryl organic molecule is selected from a group consisting of chloryl alkoxysilane, chloryl alkane and chloryl phene. 
     
     
         6 . The method of producing the aerogel particle of  claim 4 , the organic solvent includes a mixture of ethanol and water; a temperature of the second mixed solution is sequentially varied to a first temperature, a second temperature and a third temperature, wherein the first temperature is 78° C. to 82° C., the second temperature is 100° C. to 115° C., the third temperature is 40° C. to 45° C., and when the temperature of the second mixed solution is varied to the third temperature, the chloryl organic molecule is added. 
     
     
         7 . The method of producing the aerogel particle of  claim 4 , after the hydrophobic modified process is performed, the method further comprises:
 performing a post-treatment process, wherein the aerogel particle is filtered out by a filter and washed by toluene, and then the aerogel particle is dried in vacuum.   
     
     
         8 . The method of producing the aerogel particle of  claim 1 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         9 . The method of producing the aerogel particle of  claim 2 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         10 . The method of producing the aerogel particle of  claim 3 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         11 . The method of producing the aerogel particle of  claim 4 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         12 . The method of producing the aerogel particle of  claim 5 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         13 . The method of producing the aerogel particle of  claim 6 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         14 . The method of producing the aerogel particle of  claim 7 , wherein the sol is stirred at 1200 rpm to 2000 rpm when the condensation process is performed. 
     
     
         15 . An aerogel particle, produced by following processes:
 performing a mixing process, wherein an alkoxysilane compound is mixed with an organic solvent to form a first mixed solution;   performing a hydrolysis process to the first mixed solution, wherein an acid catalyst is added into the first mixed solution to perform a hydrolysis reaction, thereby forming a sol; and   performing a condensation process to the sol, wherein an alkali catalyst is added into the sol, a hydrophobic dispersion solvent is added and stirred during the condensation process, thereby subjecting the sol to be gelled when it is stirred, further producing a second mixed solution including the aerogel particle, and a particle size of the aerogel particle is 300 nm to 900 nm.   
     
     
         16 . The aerogel particles of  claim 15 , wherein the hydrophobic solvent is selected from a group consisting of ketone, ether, ester, aromatic and alkane.