Bio-derived material with leather-like properties, artificial leather material, artificial leather structure, and methods for preparing same

Abstract

A material with leather-like properties, an artificial leather material, an artificial leather structure, and a method for preparing the same are disclosed. The material with leather-like properties includes a mushroom extract; and a glycerol-based compound.

What is claimed is: 
     
         1 . A material with leather-like properties, the material comprising a mushroom extract; and a glycerol-based compound. 
     
     
         2 . The material with leather-like properties of  claim 1 , wherein the mushroom extract includes a chitin polymer. 
     
     
         3 . The material with leather-like properties of  claim 1 , wherein the mushroom extract includes a NaOH extract slurry of a mushroom,
 wherein the glycerol-based compound includes a glycerol aqueous solution.   
     
     
         4 . The material with leather-like properties of  claim 3 , wherein the NaOH extract slurry of the mushroom is a 2 to 4 wt % extract slurry,
 wherein the glycerol aqueous solution is an 8 to 12 wt % aqueous solution,   wherein the NaOH extract slurry of the mushroom and the glycerol aqueous solution are mixed with each other in a ratio of 5:4 to 5:5.   
     
     
         5 . The material with leather-like properties of  claim 1 , wherein the material with leather-like properties in a dry state has a tensile elongation of 20 to 24%, a tensile strength of 15 to 20 N/mm 2  and a toughness of 2 to 3 N/mm 2 . 
     
     
         6 . The material with leather-like properties of  claim 1 , wherein the mushroom extract includes at least one extract selected from the group, including  Agaricus bisporus  extract,  Pleurotus ostreatus  extract,  Pleurotus eryngii  extract,  Flammulina filiformis  extract, and  Lentinula edodes  extract. 
     
     
         7 . The material with leather-like properties of  claim 1 , wherein the material with leather-like properties is processed into a film form or is printed with a 3D printer. 
     
     
         8 . A method for preparing a material with leather-like properties, the method comprising:
 a first step of grinding mushrooms to obtain a grinding product and adding and mixing the grinding product into and with a NaOH solution to prepare a slurry; and   a second step of mixing the slurry and a glycerol-based compound aqueous solution with each other to prepare the material with leather-like properties.   
     
     
         9 . The method for preparing the material with leather-like properties of  claim 8 , wherein the slurry is a 2 to 4 wt % mushroom extract slurry. 
     
     
         10 . The method for preparing the material with leather-like properties of  claim 9 , wherein the glycerol aqueous solution is an 8 to 12 wt % aqueous solution. 
     
     
         11 . The method for preparing the material with leather-like properties of  claim 10 , wherein the slurry and the glycerol aqueous solution are mixed with each other in a ratio of 5:4 to 5:5. 
     
     
         12 . The method for preparing the material with leather-like properties of  claim 8 , wherein the mushrooms include at least one selected from the group including  Agaricus bisporus, Pleurotus ostreatus, Pleurotus eryngii, Flammulina filiformis , and  Lentinula edodes.    
     
     
         13 . The method for preparing the material with leather-like properties of  claim 8 , wherein the method further comprises a step of processing the material with leather-like properties into a film form or of printing the material with leather-like properties with a 3D printer.