POROUS COMPOSITE MATERIAL FROM CELLULOSE AND METHOD OF MAKING THE SAME

摘要

The present invention relates to a porous fibrous structure derived from a cellulose-based material and a method for producing the same and, more particularly, to a production method including a step of augmenting an internal pore by immersing a cellulose-based material in a polar solvent, substituting the polar solvent with a non-polar solvent, and performing drying by a critical point drying method and a porous fibrous structure that is produced by the method. According to the present invention, a cellulose-derived fibrous structure can be produced into the porous fibrous structure without being contracted after being expanded by the use of the polar solvent. The porous fibrous structure that is produced in this manner is environment-friendly and lightweight, and thus can be utilized in the materials sector as a stiffener for various biocomposite materials. In addition, the porous fibrous structure can be utilized in fields of separation membrane that have purposes such as gas separation, gas adsorption, and pervaporation.