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Efficient quick release spray for formaldehyde in sheets

A spray and plate technology, applied in the field of indoor environmental management, can solve indoor environmental pollution and other problems, achieve the effect of improving purification efficiency and promoting rapid release

Active Publication Date: 2019-01-04
浙江净威环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the purification technology includes chemical adsorption, photocatalytic degradation, etc. The currently released formaldehyde is relatively easy to deal with, and the long-term slow release of formaldehyde in the board causes indoor environmental pollution.

Method used

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  • Efficient quick release spray for formaldehyde in sheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Place 100 parts of iron-containing gel in a tube furnace, feed 40 milliliters of pure oxygen per minute, then raise the temperature from normal temperature to 300 degrees at a rate of 5 degrees per minute, and keep it for 30 minutes; then switch to 30 milliliters per minute Minutes of hydrogen, keep 300 degrees roasting for 60 minutes; cool down to 190 degrees, switch gas to ammonia, gas flow rate is 30 milliliters per minute; switch to 50 milliliters per minute of nitrogen until the temperature drops to normal temperature after the reaction; the obtained material Add directly to 500 parts of a mixed solution of water and isopropanol, wherein the ratio of water to isopropanol is 2:3, and mix the solution thoroughly to obtain a spray.

[0031] The release effect of formaldehyde in the plate of this embodiment is shown in Table 1. The transmission electron microscope result that obtains material in the present embodiment is as follows figure 1 As shown, it has a certain ...

Embodiment 2

[0033] Place 100 parts of iron-containing gel in a tube furnace, feed 100 ml of pure oxygen per minute, then raise the temperature from normal temperature to 500 degrees at a rate of 1 degree per minute, and keep it for 60 minutes; then switch to 20 milliliters per minute Minutes of hydrogen, keep 300 degrees roasting for 60 minutes; cool down to 150 degrees, switch gas to ammonia, gas flow rate is 30 milliliters per minute; switch to 50 milliliters per minute of nitrogen until the temperature drops to normal temperature after the reaction; the obtained material Add directly to 1000 parts of the mixed solution of water and isopropanol, wherein the ratio of water and isopropanol is 1:1, and mix the solution thoroughly to obtain a spray. The release effect of formaldehyde in the plate of this embodiment is shown in Table 1.

Embodiment 3

[0035] Place 100 parts of iron-containing gel in a tube furnace, feed 30 milliliters of pure oxygen per minute, then raise the temperature from normal temperature to 200 degrees at a rate of 10 degrees per minute, and keep it for 30 minutes; then switch to 60 milliliters per minute Minutes of hydrogen, keep 200 degrees roasting for 60 minutes; cool down to 280 degrees, switch the gas to ammonia, the gas flow is 30 ml per minute; switch to 50 ml per minute of nitrogen until the temperature drops to normal temperature after the reaction; the obtained material Add directly to 100 parts of the mixed solution of water and isopropanol, wherein the ratio of water and isopropanol is 1:10, and mix the solution thoroughly to obtain a spray. The release effect of formaldehyde in the plate of this embodiment is shown in Table 1.

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Abstract

The invention discloses an efficient quick release spray for formaldehyde in sheets. The efficient quick release spray is prepared by the following steps: preparing iron-containing gel: dissolving ferric citrate into deionized water, dropwise adding ethylenediamine and ammonium hydroxide, stirring, then standing and ageing in a baking oven to form wet gel and subsequently drying the wet gel into xerogel; preparing the spray: putting the iron-containing gel into a tube furnace and introducing pure oxygen for heating and roasting; introducing hydrogen for continuously roasting; cooling and introducing ammonia gas; after the reaction is ended, introducing nitrogen until the temperature is reduced to a normal temperature; finally, directly adding the obtained material into a mixed solution ofwater and isopropanol; sufficiently mixing the solution to obtain the spray. The spray disclosed by the invention contains a FexNy and C4N4 mixed material and can accelerate quick release of the formaldehyde so as to improve the purifying efficiency.

Description

technical field [0001] The invention relates to a formaldehyde releasing agent, in particular to a high-efficiency formaldehyde quick-release spray in boards, which belongs to the field of indoor environment treatment. Background technique [0002] With the improvement of people's living standards, more and more people tend to use synthetic materials in interior decoration design. However, the use of these synthetic building and decoration materials has led to the gradual deterioration of indoor air quality, seriously affecting people's physical and mental health and work efficiency. Among them, formaldehyde is one of the main pollutants in the indoor air at present. It is in a colorless gas state, has a pungent smell, and has the possibility of teratogenic, carcinogenic and mutagenic. [0003] The release of formaldehyde is a long-term process, especially in some pressed boards, due to the addition of a large amount of adhesive, formaldehyde cannot be released effectively ...

Claims

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Application Information

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IPC IPC(8): B27K3/52B27K3/02
CPCB27K3/0228B27K3/52
Inventor 钱雪峰金顶峰俞锋
Owner 浙江净威环境科技有限公司
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