Method for making a biodegradable fibrous material composition

Abstract

A method for making a biodegradable fibrous material composition includes: (a) grinding raw bamboo into coarse raw bamboo particulates; (b) drying the raw bamboo particulates; (c) grinding the raw bamboo particulates into fine bamboo powder; (d) mixing the bamboo powder with water to result in a mixture; (e) stirring the mixture at a speed ranging from 1000 to 1800 rpm/min, which leads to formation of softened bamboo fibers; and (f) stirring a mixture of the softened bamboo fibers, a binder, a solidifying agent, a water repellent, starch and water at a speed ranging from 1000 to 1800 rpm/min.

1 . A method for making a biodegradable fibrous material composition comprising:
 (a) grinding raw bamboo into coarse raw bamboo particulates;   (b) drying the raw bamboo particulates;   (c) grinding the raw bamboo particulates into fine bamboo powder;   (d) mixing the bamboo powder with water to result in a mixture;   (e) stirring the mixture at a speed ranging from 1000 to 1800 rpm/min so as to soften fibers of the raw bamboo powder, which leads to formation of softened bamboo fibers; and   (f) stirring a mixture of the softened bamboo fibers, a binder, a solidifying agent, a water repellent, starch and water at a speed ranging from 1000 to 1800 rpm/min so as to form the biodegradable fibrous material composition.   
   
   
       2 . The method of  claim 1 , wherein the bamboo powder has a particle size ranging from 60-120 meshes. 
   
   
       3 . The method of  claim 1 , wherein the solidifying agent is selected from the group consisting of polyamide, epoxy chloropropane, a thermosetting resin, and combinations thereof. 
   
   
       4 . The method of  claim 3 , wherein the solidifying agent is a cationic intensifier. 
   
   
       5 . The method of  claim 1 , wherein the water repellent is a cationic neutral sizing agent. 
   
   
       6 . The method of  claim 1 , wherein the binder contains polyvinyl alcohol. 
   
   
       7 . The method of  claim 1 , wherein softening of the fibers of the bamboo powder in step (e) is conducted under a temperature ranging from 35-45° C.