Preparation method for new purification material with catalytic oxidation of formaldehyde and sterilization function

Abstract

The invention relates to a preparation method of new purification material with catalytic oxidation formaldehyde and sterilization function. The preparation method comprises the following steps of: 1,taking a porous adsorption material as a carrier; step 2, loading noble metal with a catalytic oxidation formaldehyde function, rare-earth metal material, substance containing silver, zinc or copperwith sterilizing active component on a carrier material; step 3, synthetizing the carrier material loaded with the active functional component with the high molecular material to form the fiber; step4, processing the fiber into a non-woven fabric to finish the preparation of the purification material. By bonding the carrier material containing formaldehyde catalytic oxidation active component andsterilizing active component with high-molecular material such as polyester, polyethylene, polypropylene and nylon, after heating and melting, bonding the active component with the fiber, and forminga strong active layer inside and outside the fiber, the new purification material with catalytic oxidation formaldehyde and sterilization function has the advantages that the specific surface area ofthe material is increased, the dispersion of the active component is facilitated, the formaldehyde can be fully contacted with the catalyst, and the formaldehyde has good purification function.

Description

technical field [0001] The invention relates to the field of air purification, and more specifically refers to a preparation method of a new purification material with functions of catalytic oxidation of formaldehyde and sterilization. Background technique [0002] According to statistics, people spend 80% of their lives in houses, offices and cars, so indoor air quality is extremely important to human health. Formaldehyde (HCHO) is one of the most important pollutants. The sources of formaldehyde in the environment are extremely extensive, usually through natural and man-made ways. The formaldehyde in indoor air mainly comes from interior decoration, composite flooring, furniture, paint coatings, etc. Formaldehyde gas will be volatilized. As time goes by, it will gradually release to the surrounding environment. Long-term exposure to low-concentration formaldehyde will cause symptoms such as headache, insomnia, finger tremors, and vision loss. High-concentration formaldehy...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many ways to purify formaldehyde. An important and widely used method is to use an air purifier to purify formaldehyde. The formaldehyde filter used in the air purifier is to load the catalytic material on the surface of the porous carrier granular material, and then the granular material Filled into the honeycomb skeleton material, in order to ensure that the wind resistance is small and will not fall off, the porous carrier material used must be relatively large particles, so that the purification effect will be affected; there are also materials combined with HEPA materials, so that Although it solves some problems, the HEPA material of this kind of filter screen is disposable, which causes waste of precious metal resources and high cost of use; at the same time, this kind of material only purifies formaldehyde and cannot sterilize, and another layer of bactericidal material must be compounded when sterilization is required. Increased filter resistance

Images