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Efficient formaldehyde removing agent and preparation method thereof

A formaldehyde scavenger and high-efficiency technology, applied in the field of high-efficiency formaldehyde scavenger and its preparation, can solve problems such as yellowing of the surface of the board, unstable effect, and harm to human health, and achieve simple preparation and use processes, stable and significant effect, and no The effect of secondary pollution

Active Publication Date: 2015-05-13
湖南宏润科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the preparation and use of urea-formaldehyde resin, free formaldehyde will be released, and the artificial board produced with urea-formaldehyde resin will be aging and degraded during use, releasing free formaldehyde. Excessive free formaldehyde superimposed for a long time will endanger human health.
[0003] At present, many formaldehyde elimination products on the market will more or less play the role of degrading and releasing free formaldehyde to a certain extent, but most of them have the following shortcomings: 1. The effect is unstable, and the effect will decrease significantly after a period of time, such as The method of ammonia treatment is used to degrade the released free formaldehyde; 2. The surface of the treated board is yellowed and discolored, which affects the senses; 3. The adhesive strength of the treated board is reduced; Blistering on the surface makes it difficult to dry, which affects the use of the board; 5. After the board is treated with some eliminate agents, there will be serious moisture return, which will affect the subsequent use

Method used

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  • Efficient formaldehyde removing agent and preparation method thereof
  • Efficient formaldehyde removing agent and preparation method thereof
  • Efficient formaldehyde removing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh the following raw materials according to the following weight: 650 parts of water, 3 parts of phosphoric acid, 100 parts of sodium sulfite, 200 parts of carbonamide, 40 parts of adipic acid dihydrazide, 10 parts of guaninourea phosphate, 0.015 parts of mint, 0.035 parts of camphor, disperse Add 0.3 parts of the above-mentioned metered water into the mixing tank, start the mixer, and add the acid compounds, inorganic salts, amide compounds, hydrazide compounds, phosphoamidino salts and penetrants weighed according to the above proportions into the In the mixing tank, stir until completely dissolved or evenly dispersed, then filter to obtain the formaldehyde scavenger.

Embodiment 2

[0020] Weigh the following raw materials according to the following weight: 850 parts of water, 4 parts of citric acid, 1 part of phosphoric acid, 75 parts of sodium sulfite, 30 parts of ammonium sulfate, 100 parts of carbonamide, 70 parts of adipic acid dihydrazide, 15 parts of phosphoguanidinourea, 0.015 parts of mint, 0.035 parts of camphor, 0.3 parts of dispersant, add the above-mentioned metered water in the mixing tank, start the mixer, and weigh the acid compounds, inorganic salts, amide compounds, hydrazide compounds, phosphoric acid Add the amidine salt and penetrating agent into the mixing tank, stir until completely dissolved or evenly dispersed, and then filter to obtain the formaldehyde scavenger.

Embodiment 3

[0022] Weigh the following raw materials according to the following weight: 1000 parts of water, 3 parts of phosphoric acid, 1 part of citric acid, 75 parts of sodium sulfite, 35 parts of ammonium sulfate, 75 parts of carbonamide, 60 parts of adipic dihydrazide, and 10 parts of guanylurea phosphate , 0.015 part of peppermint, 0.035 part of camphor, 0.3 part of dispersant, add the above-mentioned metered water in the mixing tank, start the mixer, and the acid compound, inorganic salt, amide compound, hydrazide compound, Phosphate amidinyl salt and penetrating agent are added into the mixing tank, stirred until completely dissolved or uniformly dispersed, and then filtered to obtain the formaldehyde scavenger.

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Abstract

The invention discloses an efficient formaldehyde removing agent. The removing agent is a mixture which consists of the following components in weight ratio: 650-1000 parts of water, 3-5 parts of acid compound, 75-110 parts of inorganic salt, 75-200 parts of amide compound, 40-70 parts of hydrazide compound, 10-20 parts of amidino salt phosphate and 0.3-0.5 part of penetrant. The invention further discloses a preparation method of the efficient formaldehyde removing agent. The water is added into a mixing tank according to the weight ratio, a blender is started, and the acid compound, the inorganic salt, the amide compound, the hydrazide compound, the amidino salt phosphate and the penetrant are weighed according to the weight ratio, added into the mixing tank, stirred to dissolve or disperse uniformly and then filtered only. The agent is suitable for various plates, free formaldehyde released from the plates can be effectively reduced, and moreover, the strength of the plate adhesive is slightly influenced.

Description

technical field [0001] The invention relates to a high-efficiency formaldehyde scavenger and a preparation method thereof. Background technique [0002] With the improvement of people's material life, home decoration is becoming more and more common, which leads to the extensive use of man-made panels in the decoration process, especially the increasing shortage of natural wood, which leads to the increase in the use of man-made panels, such as large core boards (joiner board), plywood, veneer, especially the large core board, but the artificial board must use adhesives in the manufacturing process. Due to the low cost of urea-formaldehyde resin and its good adhesive performance, most manufacturers currently use urea-formaldehyde resin as adhesive. However, during the preparation and use of urea-formaldehyde resin, free formaldehyde will be released, and the artificial boards produced with urea-formaldehyde resin will age and degrade during use, releasing free formaldehyde....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/30A62D101/28
Inventor 谭志刚
Owner 湖南宏润科技发展有限公司