Biosoluble inorganic fiber and method for producing same

Abstract

An inorganic fiber including biosoluble fiber and a cationic surfactant adhering to the biosoluble fiber. An inorganic fiber including biosoluble fiber and a surfactant adhering to the biosoluble fiber, wherein the amount of the surfactant is 0.01 to 2 wt %, based on 100 wt % of the whole inorganic fiber comprising the surfactant adhered thereto.

1 . Inorganic fiber comprising biosoluble fiber and a cationic surfactant adhering to the biosoluble fiber. 
     
     
         2 . Inorganic fiber comprising biosoluble fiber and a surfactant adhering to the biosoluble fiber, wherein
 the amount of the surfactant is 0.01 to 2 wt %, based on 100 wt % of the whole inorganic fiber comprising the surfactant adhered thereto.   
     
     
         3 . The inorganic fiber according to  claim 1 , wherein the biosoluble fiber has the following composition ratio:
 the total of SiO 2 , Al 2 O 3 , ZrO 2  and TiO 2  50 to 82 wt %; and   the total of CaO and MgO 18 to 50 wt %.   
     
     
         4 . The inorganic fiber according to  claim 1 , wherein the biosoluble fiber has the following composition ratio:
 SiO 2  50 to 82 wt %; and   the total of CaO and MgO 10 to 43 wt %.   
     
     
         5 . The inorganic fiber according to  claim 1 , wherein the biosoluble fiber has the following composition ratio 1 or 2:
 [Composition ratio 1]
 SiO 2  70 to 82 wt %; 
 CaO 1 to 9 wt %; 
 MgO 10 to 29 wt %; and 
 Al 2 O 3  less than 3 wt % 
   [Composition ratio 2]
 SiO 2  70 to 82 wt %; 
 CaO 10 to 29 wt %; 
 MgO 1 wt % or less; and 
 Al 2 O 3  less than 5 wt %. 
   
     
     
         6 . The inorganic fiber according to  claim 5 , wherein the biosoluble fiber has the composition ratio 2. 
     
     
         7 . The inorganic fiber according to  claim 6 , wherein Al 2 O 3  is 2 wt % or more. 
     
     
         8 . The inorganic fiber according to  claim 1 , wherein the surfactant is an alkyl amine acetate. 
     
     
         9 . A method for producing the inorganic fiber according to  claim 1 , comprising spraying a surfactant to biosoluble fiber or impregnating biosoluble fiber with a surfactant. 
     
     
         10 . A formed product or an unshaped product obtained from the inorganic fiber according to  claim 1 .