Organic polymer/inorganic particles composite materials

Abstract

The invention discloses a fire resistant composite material comprising inorganic particles well dispersed in a polymer having reactive functional groups. The inorganic particles also contain reactive functional groups, originally or after surface modification, that can react with the corresponding reactive functional groups of the polymer to form organic/inorganic composite materials. When the composite material is burned or under fire exposure, the polymer forms a char layer and the inorganic particles radiate absorbed heat. The inorganic particles also strengthen the mechanical properties of the structure through the reaction between inorganic and organic materials, so that the formed char layer is firm and can maintain its structural integrity without peeling off or cracks, effectively preventing direct heat transferring into the interior parts. The fire resistant material is not only flame retardant but also protective toward the interior materials. As a result, the duration of fire resistant ability is tremendously improved.

1 . An organic polymer/inorganic particles composite material, comprising: 
 an organic polymer with a first reactive functional group; and    inorganic particles, wherein the inorganic particles contains a second reactive functional group originally or after surface modification.    
   
   
       2 . The organic polymer/inorganic particles composite material as claimed in  claim 1 , wherein the content of the organic polymer is between 10˜90? by weight.  
   
   
       3 . The organic polymer/inorganic particles composite material as claimed in  claim 2 , wherein the first reactive functional group comprises epoxy group, —COOH, —NH 3 , or —NCO.  
   
   
       4 . The organic polymer/inorganic particles composite material as claimed in  claim 2 , wherein the organic polymer comprises polyacid, polyurethane, epoxy, polyolefin, polyamine, polyimide, or derivatives thereof.  
   
   
       5 . The organic polymer/inorganic particles composite material as claimed in  claim 1 , wherein the content of the inorganic particles is between 10˜90? by weight.  
   
   
       6 . The organic polymer/inorganic particles composite material as claimed in  claim 5 , wherein the inorganic particles comprise hydroxide, nitride, oxide, or metal salt.  
   
   
       7 . The organic polymer/inorganic particles composite material as claimed in  claim 6 , wherein the hydroxide comprises metal hydroxide.  
   
   
       8 . The organic polymer/inorganic particles composite material as claimed in  claim 7 , wherein the metal hydroxide comprises Al(OH) 3  or Mg(OH) 2 .  
   
   
       9 . The organic polymer/inorganic particles composite material as claimed in  claim 6 , wherein the oxide comprises SiO 2 , TiO 2 , or ZnO.  
   
   
       10 . The organic polymer/inorganic particles composite material as claimed in  claim 6 , wherein the nitride comprises BN.  
   
   
       11 . The organic polymer/inorganic particles composite material as claimed in  claim 6 , wherein the metal salt comprises CaCO 3 .  
   
   
       12 . The organic polymer/inorganic particles composite material as claimed in  claim 5 , wherein the inorganic particles comprise clay.  
   
   
       13 . The organic polymer/inorganic particles composite material as claimed in  claim 12 , wherein the clay comprises smectite clay, vermiculite, halloysite, sericite, saponite, montmorillonite, beidellite, nontronite, mica, or hectorite.  
   
   
       14 . The organic polymer/inorganic particles composite material as claimed in  claim 5 , wherein the inorganic particles comprise SiC.  
   
   
       15 . The organic polymer/inorganic particles composite material as claimed in  claim 5 , wherein the inorganic particles comprise LDH.  
   
   
       16 . The organic polymer/inorganic particles composite material as claimed in  claim 5 , wherein the inorganic particles comprise talc.  
   
   
       17 . The organic polymer/inorganic particles composite material as claimed in  claim 3 , wherein the inorganic particles comprise Al(OH) 3  or Mg(OH) 2 .  
   
   
       18 . The organic polymer/inorganic particles composite material as claimed in  claim 17 , wherein the content of the organic polymer is between 10˜90? by weight.  
   
   
       19 . The organic polymer/inorganic particles composite material as claimed in  claim 17 , wherein the content of the inorganic particles is between 10˜90? by weight.