Methods of Using N-Containing Compounds with Carbon Black to Replace Pan and Form Carbon Fibers

Abstract

A method and precursor for making carbon fibers and the like comprising carbon black modified with at least one cyclic compound promoter. A source of the carbon black may be recycled materials such as recycled tires or recycled plastics. The carbon black is modified by attaching at least one cyclic compound promoter to the outer periphery of the carbon black.

1 - 23  (canceled) 
     
     
         24 . A method of making carbon fibers by providing a precursor used to make the carbon fiber, said precursor comprising carbon black with at least one cyclic compound promoter and PAN, said at least one cyclic compound promoter is a nitrogen (N)-containing compound wherein said precursor contains more than 10% carbon black. 
     
     
         25 . The method of  claim 24  wherein said carbon black is from recycled materials. 
     
     
         26 . The method of  claim 25  wherein said carbon black is from recycled tires or recycled plastics. 
     
     
         27 . The method of  claim 24  wherein said carbon black is modified by attaching said at least one cyclic compound promoter to the periphery of the carbon black. 
     
     
         28 . The method of  claim 24  wherein said at least one cyclic compound promoter is a nitrogen (N)-containing compound. 
     
     
         29 . The method of  claim 28  wherein said carbon black is modified by attaching said nitrogen (N)-containing compound to the outer periphery of the carbon black. 
     
     
         30 . The method of  claim 29  wherein said N-containing compound is from the group including organics containing di-cyano groups, cyanamide, carbodiimides, pyridine, 2,2-bipyridine, ammonia, hydrazine, 2-aminopyridine, 2-cyanopyridine, and related compounds. 
     
     
         31 . The method of  claim 29  wherein said N-containing compound contains cyano-groups that simulate the cyano group cyclization process. 
     
     
         32 . A method of making carbon fibers by providing a precursor used to make the carbon fiber, said precursor comprising carbon black modified with at least one cyclic compound promoter and PAN. 
     
     
         33 . The method of  claim 32  wherein said carbon black is from recycled materials. 
     
     
         34 . The method of  claim 33  wherein said carbon black is from recycled tires. 
     
     
         35 . The method of  claim 32  wherein said carbon black is modified by attaching said at least one cyclic compound promoter to the periphery of the carbon black. 
     
     
         36 . The method of  claim 32  wherein said at least one cyclic compound promoter is a nitrogen (N)-containing compound. 
     
     
         37 . The method of  claim 36  wherein said carbon black is modified by attaching said nitrogen (N)-containing compound to the outer periphery of the carbon black. 
     
     
         38 . The method of  claim 37  wherein said N-containing compound is from the group including organics containing di-cyano groups, cyanamide, carbodiimides, pyridine, 2,2-bipyridine, ammonia, hydrazine, 2-aminopyridine, 2-cyanopyridine, and related compounds. 
     
     
         39 . The method of  claim 36  wherein said N-containing compound contains cyano-groups that simulate the cyano group cyclization process. 
     
     
         40 . The method of  claim 36  wherein the precursor contains around 7 parts PAN and around 1 part carbon black N-containing compound. 
     
     
         41 . The method of  claim 36  wherein the precursor is made using methyl acrylate, itaconic acid and fumaronitrile. 
     
     
         42 . The method of  claim 41  wherein the precursor is made using around 0.6 parts methyl acrylate, around 0.1 parts itaconic acid and around 1 part fumaronitrile. 
     
     
         43 . A method of making carbon fibers by providing a precursor used to make the carbon fiber, said precursor comprising carbon black modified with at least one nitrogen (N)-containing compound, PAN, methyl acrylate, itaconic acid and fumaronitrile. 
     
     
         44 . The method of  claim 43  wherein said N-containing compound is from the group including organics containing di-cyano groups, cyanamide, carbodiimides, pyridine, 2,2-bipyridine, ammonia, hydrazine, 2-aminopyridine, 2-cyanopyridine, and related compounds. 
     
     
         45 . The method of  claim 44  wherein said N-containing compound contains cyano-groups that simulate the cyano group cyclization process.