Coating capable of removing formaldehyde and preparation method thereof

A technology for eliminating formaldehyde and coatings, applied in the field of coatings, can solve problems such as unstable removal of formaldehyde, achieve excellent mechanical properties, improve adsorption and capture efficiency, and good film-forming performance

Inactive Publication Date: 2022-06-03
刘新霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coating systems with amino groups as active substances have been widely used in automotive interiors as active substances for removing formaldehyde, but the effect of removing formaldehyde in paints is not stable

Method used

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  • Coating capable of removing formaldehyde and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a paint that can eliminate formaldehyde, and the paint includes the following parts by weight: 100 parts of water, 75 parts of acrylic emulsion, 28 parts of nano-barium sulfate, 8 parts of nano-scale zinc oxide, and modified multi-wall carbon 4 parts of nanotubes, 12 parts of alcohol esters, 2 parts of sodium lauryl sulfate, 0.6 parts of polydimethylsiloxane;

[0021] Described preparation method that can eliminate formaldehyde, specifically comprises the steps:

[0022] (1) Modification of multi-walled carbon nanotubes: 10 g of multi-walled carbon nanotubes were added to a mixed solution of 1 L of sulfuric acid and nitric acid (sulfuric acid: nitric acid=3:1, volume ratio), and the filtrate was filtered after 3 hours of ultrasonic vibration reaction. After washing and drying with 10L of deionized water, carboxyl-functionalized multi-walled carbon nanotubes (MWNTs-COOH) were obtained, then the obtained multi-walled carbon nanotubes were added to...

Embodiment 2

[0027] This embodiment provides a paint that can eliminate formaldehyde. The paint comprises the following parts by weight: 100 parts of water, 80 parts of acrylic emulsion, 30 parts of nano-barium sulfate, 8 parts of nano-scale zinc oxide, and modified multi-wall carbon 5 parts of nanotubes, 1 part of propylene glycol, 2 parts of sodium lauryl sulfate, 0.6 part of polydimethylsiloxane;

[0028] The preparation method of this example is the same as that of Example 1.

Embodiment 3

[0030] This embodiment provides a paint that can eliminate formaldehyde, and the paint includes the following components by weight: 100 parts of water, 90 parts of acrylic emulsion, 30 parts of nano-barium sulfate, 10 parts of nano-scale zinc oxide, and modified multi-wall carbon 7 parts of nanotubes, 2 parts of propylene glycol butyl ether, 2 parts of sodium lauryl sulfate, 0.6 parts of polydimethylsiloxane;

[0031] The preparation method of this example is the same as that of Example 1.

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Abstract

The invention relates to a coating capable of eliminating formaldehyde, which is characterized by comprising the following components in parts by weight: 100 parts of water, 70-100 parts of acrylic emulsion, 25-40 parts of functional pigment filler, 8-10 parts of formaldehyde-removing functional filler, 3-8 parts of modified multi-walled carbon nanotube, 1-3 parts of coalescing agent, 1-3 parts of dispersing agent and 0.5-1 part of defoaming agent, the modified multi-walled carbon nanotube is a multi-walled carbon nanotube subjected to compound modification of amino and MnO2, and specifically, the multi-walled carbon nanotube is oxidized firstly, then the amino is introduced through a grafting reaction, then MnO2 is introduced through an impregnation method, and the multifunctional multi-walled carbon nanotube is formed. The preparation method has the beneficial effects that the modified multi-walled carbon nanotubes are loaded by the amino groups and the nano MnO2, so that the formaldehyde adsorption and trapping efficiency is improved, and formaldehyde can be degraded in situ by the loaded nano MnO2 under the condition of insufficient illumination.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a formaldehyde-removable coating and a preparation method thereof. Background technique [0002] Formaldehyde is a colorless gas with a pungent odor. Excessive content can cause serious harm to the human respiratory system, blood, nerves, skin and other systems. In the process of home decoration, wood floors, furniture and other man-made boards, various adhesives and other decoration materials may contain formaldehyde, and formaldehyde has been slowly released, and the release amount can reach 10-15 years. How to continuously and effectively eliminate formaldehyde becomes a problem. The focus of attention. [0003] In order to purify indoor air and remove formaldehyde, adsorbents such as activated carbon, molecular sieve, and silica gel are often used by people. There are also green plants or natural pigments. Or some visual adsorption technologies using color-cha...

Claims

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Application Information

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IPC IPC(8): C09D133/16C09D7/62C09D7/61
CPCC09D133/066C09D7/62C09D7/61C08K2003/2296C08K2201/011C08K9/04C08K3/041C08K9/12C08K3/22Y02A50/20
Inventor 不公告发明人
Owner 刘新霞
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