Formaldehyde-Trapping Glass Fiber Canvas for Indoor Wall Coverings
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Solution Overview
Problem
Current building materials, such as adhesives, paints, and varnishes, emit formaldehyde, posing health risks and requiring stricter regulations, necessitating the development of methods to reduce formaldehyde levels inside buildings.
Innovation Solution
A painting canvas made of glass fibers infused with a compound capable of reacting with formaldehyde, such as organic compounds with active methylene groups or hydrazides, to effectively trap formaldehyde, combined with a porous material for enhanced absorption, applied using a primer composition and optional additional water-reactivatable glue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If building materials such as adhesives, paints and varnishes are used, then construction and interior design functions are achieved, but formaldehyde emissions occur posing health risks
Solution Approach 1:
The patent incorporates formaldehyde-generating materials (adhesives, paints, varnishes) into the building construction while simultaneously integrating formaldehyde-trapping agents (compounds with active methylene groups, hydrazides, tannins, amides, amino acids) into the same materials or adjacent materials. The harmful formaldehyde emissions are converted into beneficial trapped formaldehyde through chemical reactions, transforming the harm into a benefit by using the emitted formaldehyde as a reactant for the trapping agents.
Solution Approach 2:
The patent introduces formaldehyde-trapping agents as intermediary substances between the formaldehyde-emitting materials and the indoor environment. These agents (compounds with active methylene groups, hydrazides, tannins, amides, or amino acids) act as mediators that chemically intercept and bind formaldehyde molecules, preventing them from entering the air and being inhaled by occupants. The trapping agents serve as a chemical buffer zone that transforms the harmful emission into a stable bound state.
2Object-generated harmful factors
If formaldehyde-trapping agents are incorporated into building materials, then formaldehyde emissions are reduced, but material composition complexity increases
Solution Approach 1:
The patent modifies the chemical composition parameters of building materials by incorporating specific functional compounds (those with active methylene groups, hydrazides, tannins, amides, or amino acids) at controlled concentrations. These parameter changes introduce formaldehyde-trapping capability while maintaining the primary structural and aesthetic functions of the base materials. The composition is adjusted to balance trapping efficiency with material stability and performance.
3Object-affected harmful factors
If stricter regulations on formaldehyde emissions are implemented, then health safety is improved, but compliance difficulty increases
Solution Approach 1:
The patent implements preliminary action by pre-equipping building materials with formaldehyde-trapping agents during the manufacturing stage, before the materials are installed in buildings. This proactive approach ensures that formaldehyde emissions are controlled at the source, preventing the need for complex post-installation monitoring and adjustment systems. The materials are pre-configured to automatically trap formaldehyde throughout their service life, simplifying compliance with emission regulations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The canvas significantly absorbs formaldehyde from the air, reducing its concentration and emissions, thereby improving indoor air quality and compliance with health safety regulations.
Implementation Method 1
By 'compound capable of reacting with formaldehyde' we mean an organic compound which binds to formaldehyde by covalent bond.
Implementation Method 2
Where appropriate, the agent capable of trapping formaldehyde may further comprise at least one porous material which adsorbs formaldehyde.
Data Source
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AI summary
The present invention relates to a painter's canvas based on glass fibers intended to be applied to an interior surface of a building, which includes an agent capable of trapping formaldehyde chosen from compounds comprising active methylene(s), hydrazides, tannins, amides, amino acids, peptides and proteins. Another subject of the present invention is the process for producing said painter's canvas.