Compound and method for producing the same

Abstract

The invention provides a compound and method of producing the same. The method of the invention includes the following steps. First of all, Polycaprolactone (PCL), dimethylol propionic acid (DMPA), 4,4′-methylenebis (cyclohexyl isocyanate) (H12MDI), and dibutyltin dilaurate (DBT) are mixed in a solvent in the first place and a solution is formed. This solution is then mixed with triethylamine (TEA) and triethylene tetramine (TETA). After that, amino-terminated anionic waterborne polyurethane (WPU) is produced. A sol-gel process is proceeded with a mixture of amino-terminated anionic waterborne polyurethane, tetraethylorthosilicate (TEOS) without any extra catalyst, and a compound, waterborne polyurethane-silica nanocomposite materials, is eventually produced.

1 . A compound comprising: waterborne polyurethane, wherein the terminal of the waterborne polyurethane comprises an amino group; and silicon dioxide mixed with the waterborne polyurethane. 
     
     
         2 . The compound of  claim 1 , wherein the amino group is primary amine. 
     
     
         3 . The compound of  claim 1 , wherein the waterborne polyurethane is formed by the following steps: mixing polycaprolactone, dimethylol propionic acid, 4,4′-methylenebis (cyclohexyl isocyanate), dibutyltin dilaurate, triethylamine, and triethylene tetramine to form a solution; and filtering the solution in a pressure-reducing environment to form another solution comprising waterborne polyurethane. 
     
     
         4 . The compound of  claim 3 , wherein the solution is mixed with tetraethylorthorsilicate to form a mixing solution and a sol-gel process is proceeded in the mixing solution, so as to produce the compound in the mixing solution.