Preparation method of macromolecular reaction catalysis spray for formaldehyde treatment

By constructing a covalently cross-linked catalytic-permeation complex of liquefied amylase and polyethyleneimine, the problem of functional inhomogeneity caused by component phase separation in polymeric catalytic sprays was solved, achieving efficient and long-lasting formaldehyde treatment effects.

CN122124623APending Publication Date: 2026-06-02SUZHOU BAGER ENVIRONMENTAL ECOTECH CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202610279314.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing polymeric catalytic sprays suffer from phase separation and uneven distribution during physical blending due to differences in component properties, which affects formaldehyde capture efficiency and reaction rate, making it difficult to achieve long-term and stable formaldehyde treatment.

Method used

By cross-linking liquefied amylase with polyethyleneimine, a catalytic-permeation complex is constructed, forming a stable covalently bonded structure that ensures the synergistic effect of catalytic and permeation functions at the molecular level.

Benefits of technology

It achieves efficient formaldehyde capture and conversion, increases formaldehyde removal rate to over 98%, extends effective period to 720 days, and enhances the uniformity and durability of treatment on porous materials.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a preparation method of a high-molecular reaction catalytic spray for formaldehyde treatment, and belongs to the technical field of air purification, and the preparation method comprises the following steps: carrying out cross-linking reaction on liquefied amylase and a polyethyleneimine derivative in a buffer solution in the presence of a cross-linking agent, and carrying out purification and drying treatment after the reaction to obtain the high-molecular reaction catalytic spray for formaldehyde treatment. A solid catalysis-permeation compound is obtained; s2, stirring and mixing the catalysis-permeation compound prepared in the step S1 with compound amino micro powder, a liquefied amylase penetrant, a plant extract and water to obtain a uniform spray material; s2, filling the spray material body prepared in the step S2 into an inner bag of a binary bag, filling propelling gas into an outer bag of the binary bag, and sealing to form a self-spraying package with in-tank pressure of 0.65-0.75 MPa, so that a catalytic function and a permeation function are tightly combined on a molecular level by constructing a catalytic permeation compound, and the self-spraying package is formed in a self-spraying mode. The polyethyleneimine and the liquefied amylase form a stable composite structure through covalent bonds.
Need to check novelty before this filing date? Find Prior Art