Active manganese aldehyde-removing sheet based on air-permeable porous material and preparation method thereof

By fixing activated manganese powder onto a breathable porous material and forming a seamless closed structure, the problems of powder shedding and insufficient breathability in activated manganese formaldehyde removal tablets are solved, achieving efficient formaldehyde decomposition and safe gas exchange.

CN122209489APending Publication Date: 2026-06-16LAIZHOU MEIHE ENVIRONMENTAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LAIZHOU MEIHE ENVIRONMENTAL TECHNOLOGY CO LTD
Filing Date
2026-03-18
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing activated manganese formaldehyde removal tablets have the problems of risk of contamination from activated manganese powder shedding and insufficient air permeability.

Method used

Using a breathable porous material as a carrier, active manganese powder is fixed in the pore wall by acrylic emulsion, and wrapped with non-woven fabric and sealed with electrothermal edge to form a seamless structure, which prevents the powder from falling off and maintains high breathability.

Benefits of technology

It achieves stable fixation of active manganese, improves the catalytic decomposition efficiency of formaldehyde, avoids powder pollution, and maintains efficient gas exchange capacity.

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Abstract

The present application relates to the technical field of indoor air purification materials, and discloses an active manganese aldehyde removal sheet based on a breathable porous material and a preparation method thereof, which comprises loading an active manganese catalyst on an open-cell polyurethane foam as a carrier and coating the open-cell polyurethane foam with a six-surface heat-sealed printed breathable non-woven fabric. The active manganese is anchored on the pore wall through an acrylate emulsion film, and the non-woven fabric joint is heat-sealed to form a glue-free closed structure. The present application can prevent the active manganese powder from falling off while maintaining high breathability, significantly improve the efficiency of catalytic decomposition of formaldehyde, and has a 24-hour static removal rate of not less than 90% without the risk of secondary pollution.
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