Molecular sieve/fiber composite material and preparation method therefor

Abstract

The invention provides a molecular sieve / fiber composite material. The molecular sieve / fiber composite material comprises molecular sieves and fibers, wherein the molecular sieves are distributed on surfaces of the fibers and are in contact with the surfaces of the fibers directly, the particle size D90 of the molecular sieves is 0.01 to 50 microns, and the particle size D50 of the molecular sieves is 0.005 to 30 microns; and the molecular sieves are uniformly distributed on the surfaces of the fibers. The invention further provides a preparation method for the molecular sieve / fiber compositematerial and various uses of the molecular sieve / fiber composite material. According to the molecular sieve / fiber composite material, the preparation method therefor and various uses of the molecularsieve / fiber composite material, the problem of molecular sieve / fiber composite materials that molecular sieves are gathered on surfaces of fibers is solved for the first time, the molecular sieve / fiber composite material prepared is bran-new and has relatively high strength, elasticity restorability and dimensional stability, and thus, the composite material is firm and durable. The molecular sieve / fiber composite material provided by the invention is simple in structure, low in cost, high in stability, high in performance repeatability and high in practical efficiency and can be applied to the fields of arresting bleeding, facial beautification, deodorization, sterilization, water purification, air purification and antiradiation.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a molecular sieve / fiber composite material and a preparation method thereof. Background technique [0002] Substances with regular micropore structure and the function of screening molecules are called molecular sieves (moleculesieves). TO 4 Tetrahedron (T is selected from Si, Al, P, B, Ga, Ge, etc.) is the most basic structural unit of the molecular sieve framework (SiO 4 , AlO 4 , PO 4 , BO 4 , GaO 4 , GeO 4 etc.), through the combination of shared oxygen atoms to form a three-dimensional network structure of crystals. This combination form forms cavities and channels with molecular level and uniform pore size. Skeleton T atoms usually refer to Si, Al or P atoms, and in a few cases refer to other atoms such as B, Ga, Ge, etc. For example, zeolites are aluminosilicate molecular sieves, which are aluminosilicates with molecular sieving, adsorption, ion exchange, and ca...

AI Technical Summary

Problems solved by technology

[0030] Aiming at the deficiencies of the prior art, the first technical problem to be solved by the present invention: the present invention solves the problem of molecular sieve aggregation on the fiber surface in the molecular sieve / fiber composite material for the first time, and provides a kind of Molecular sieve and fiber are firm, and the molecular sieve is uniformly distributed on the surface of the fiber. The molecular sieve in the composite material still maintains the original large effective specific surface area and strong pore material exchange capacity.

Images