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Wood material with formaldehyde removal function and preparation method thereof

A formaldehyde purification and wood material technology, applied in the field of air purification, can solve the problems of high dependence on light intensity, easy to be oxidized, easy to be inactivated, etc., to enhance the ability to remove formaldehyde, promote efficient reaction, and fast adsorption.

Inactive Publication Date: 2018-04-24
秦素洁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned formaldehyde removal process is based on photocatalytic oxidation reaction, which is highly dependent on the light intensity in the environment, and formaldehyde cannot be continuously removed in low-light or no-light environments
[0005] Chinese invention patent CN 101549198 A discloses a formaldehyde scavenger and its application in flooring. The formaldehyde removal components include amino acids, biological enzymes, citric acid, tea polyphenols and other materials. Some of these materials are easily inactivated. , and some are easily oxidized, so most of them cannot exist stably for a long time in the environment exposed to the air, which restricts the realization of long-term aldehyde removal effect
[0006] Chinese invention patent CN 102744757 A discloses a method for producing formaldehyde-removing flooring, wherein the formaldehyde-removing medicinal solution is a decoction of various Chinese medicinal materials, and uses the aroma contained in the Chinese herbal medicine to neutralize the peculiar smell and odor in the air, but This only relieves the sensory discomfort, and does not achieve the purpose of absorbing and removing harmful substances
In addition, not all consumers are able to accept the smell of Chinese herbal medicine in the indoor environment, which also limits the wide-scale application of such products

Method used

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  • Wood material with formaldehyde removal function and preparation method thereof
  • Wood material with formaldehyde removal function and preparation method thereof
  • Wood material with formaldehyde removal function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Preparation of wooden floor with formaldehyde purification function.

[0038]1) Add 2g of polyvinylpyrrolidone, 1g of polyacrylamide and 3g of water-based polyurethane into 500g of deionized water, and dissolve with mechanical stirring at 85°C to obtain solution A;

[0039] 2) Mix 1g of titanium dioxide, 1g of tin dioxide, 1g of silicon dioxide, 2g of magnesium oxide, 1g of activated carbon, 1g of calcium chloride, 1g of sodium carbonate and 4g of 1,2-dimethylaminoethanol to obtain mixture B;

[0040] 3) Add the mixture B obtained in step 2) to the solution A obtained in step 1), and disperse evenly by means of mechanical stirring to obtain mixture C, which is filtered through a 200-mesh filter to obtain a formaldehyde scavenger;

[0041] 4) Use a rotary cutter to cut the pine wood into a uniform single-layer sheet with a thickness of 1mm, and use a dryer to dry the single-layer sheet at a drying temperature of 150°C until the moisture content reaches below 1...

Embodiment 2

[0046] Example 2: Preparation of a wooden decorative board with formaldehyde purification function.

[0047] 1) Add 10g of polyvinylpyrrolidone, 4.5g of polymethacrylic acid and 10g of water-based polyurethane into 800g of absolute ethanol, and dissolve with magnetic stirring at 60°C to obtain solution A;

[0048] 2) Mix 7g of titanium dioxide, 7g of tin dioxide, 7g of silicon dioxide, 6g of magnesium oxide, 13g of activated carbon, 9g of calcium chloride, 13g of sodium sulfite and 42g of 1,2,2-triphenyl-1,2-diaminoethanol , to obtain mixture B;

[0049] 3) Add the mixture B obtained in step 2) to the solution A obtained in step 1), and disperse evenly by means of magnetic stirring to obtain mixture C, which is filtered through a 300-mesh filter to obtain a formaldehyde scavenger;

[0050] 4) Get the high-density wood fiber board as the base layer 1 (thickness is 1cm); brush the formaldehyde scavenger obtained in step 3) on its upper surface as the formaldehyde purification l...

Embodiment 3

[0052] Example 3: Preparation of wooden louvers with formaldehyde purification function.

[0053] 1) Add 6g of polyvinylpyrrolidone, 4g of carboxymethyl cellulose and 6g of water-based polyurethane into 600g of deionized water, and dissolve with mechanical stirring at 70°C to obtain solution A;

[0054] 2) 4g of titanium dioxide, 4g of tin dioxide, 4g of silicon dioxide, 4g of magnesium oxide, 6g of activated carbon, 4g of calcium chloride, 6g of sodium acetate and 20g of 1,2-diphenylaminoethanol were mixed to obtain mixture B;

[0055] 3) Add the mixture B obtained in step 2) to the solution A obtained in step 1), and disperse evenly by means of ultrasonic vibration to obtain mixture C, which is filtered through a 200-mesh filter to obtain a formaldehyde scavenger;

[0056] 4) Take medium-density wood fiberboard as the base layer 1 (thickness is 1cm); brush the formaldehyde scavenger obtained in step 3) on its upper and lower surfaces respectively, as formaldehyde purificatio...

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Abstract

The invention belongs to the technical field of air purification, and relates to a wood material with a formaldehyde removal function and a preparation method thereof. The material has a layered structure comprising a base layer, a formaldehyde removal layer and a surface layer and is made through high-temperature hot pressing, wherein the base layer is a solid wood board, a particle board or a fiber board; the formaldehyde removal layer is a formaldehyde removing agent and consists of, by weight, 2-10 parts of polyvinylpyrrolidone, 1-4.5 parts of water-soluble high-molecular compounds, 3-10 parts of waterborne polyurethane, 4-42 parts of chiral amino alcohol, 1-7 parts of titanium dioxide and 1-7 parts of stannic oxide, 1-7 parts of silicon dioxide, 2-6 parts of magnesium oxide, 1-13 parts of activated carbon, 1-9 parts of calcium chloride, 1-13 parts of soluble weak acid salt and 500-800 parts of solvent; and the surface layer material is a veneer with waterproof and breathable micropores. The material can be used for rapidly and efficiently removing the formaldehyde, the raw materials are cheap and easy to obtain, and the process is simple and feasible.

Description

technical field [0001] The invention belongs to the technical field of air purification, and relates to a wood material with formaldehyde purification function and a preparation method thereof. Background technique [0002] Formaldehyde has high toxicity, and the World Health Organization has identified it as a carcinogenic and teratogenic substance. With the large-scale application of various panel furniture and wooden decorations in modern home decoration, people are paying more and more attention to the use of formaldehyde in the production process of wooden materials such as furniture and floors and the excessive formaldehyde in indoor air after decoration. At present, due to the limitations of technology and materials, there is no way to use completely formaldehyde-free materials in the process of interior decoration, and there are usually formaldehyde residues in houses after decoration. [0003] Chinese invention patent CN 1743032 A discloses a production method for ...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D1/08B27K3/02B27K3/12B27K3/52B01D53/82B01D53/72E04F15/04B32B21/14B32B37/06B32B37/10
CPCB01D53/72B01D53/82B27D1/04B27D1/08B27K3/0228B27K3/12B27K3/52B32B21/14B32B37/06B32B37/10B32B2255/08B32B2255/26B32B2307/70E04F15/041E04F15/043
Inventor 秦素洁
Owner 秦素洁
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