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Preparation method of formaldehyde-removing color-changing gel

A gel and formaldehyde technology, applied in the field of preparation of formaldehyde-removing discoloration gel, can solve the problems of poor formaldehyde-removing effect of activated carbon, inability to visually display the formaldehyde-removing effect, gastrointestinal dysfunction, etc., so as to avoid gel deterioration and inhibit microorganisms. effect of reproduction

Pending Publication Date: 2021-11-30
青岛众祥环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Formaldehyde is an organic chemical substance. It is a colorless and irritating gas. It is irritating to human eyes and nose. Formaldehyde, the incomplete combustion of fuel and tobacco leaves also releases formaldehyde. Medically, formaldehyde is also often used as a preservative and disinfectant. The main routes of human exposure to formaldehyde are inhalation through the respiratory tract, ingestion through the mouth and contact through the skin. Formaldehyde poisoning It can cause tearing eyes, conjunctival congestion and inflammation, skin allergies, nasopharyngeal discomfort, cough, acute and chronic bronchitis and other respiratory diseases, and can also cause nausea, vomiting, and gastrointestinal disorders. Among indoor air pollutants, formaldehyde is very harmful People generally use activated carbon to adsorb formaldehyde, but the effect of activated carbon on removing formaldehyde is poor, and it cannot intuitively display the effect of removing formaldehyde, which is inconvenient for people to use

Method used

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  • Preparation method of formaldehyde-removing color-changing gel
  • Preparation method of formaldehyde-removing color-changing gel
  • Preparation method of formaldehyde-removing color-changing gel

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preparation example Construction

[0024] The invention provides a technical solution: a preparation method of formaldehyde-removing color-changing gel, comprising the following steps:

[0025] S1. Weigh the raw materials according to the weight ratio, and place the raw materials in the designated position for preparation;

[0026] S2. Add the tea polyphenols to deionized water, put it into a stirring kettle at a temperature of 50-70° C., stir and mix evenly, and cool to obtain a mixed solution;

[0027] S3. Put the nano-photocatalyst and hydroxylamine phosphate into a stirring tank, stir for 1-3 hours, and mix evenly to obtain a mixed powder;

[0028] S4. Add mixed powder, preservative, antibacterial agent and peppermint oil to the mixed solution, control the temperature at 30-50° C., stir and mix evenly to obtain a pretreatment solution;

[0029] S5. Put the pretreatment solution and gel powder into a heating tank at a temperature of 100-130° C., stir for 2-4 hours, take it out and cool to room temperature, ...

Embodiment 1

[0045] Embodiment 1, by weight ratio is gel powder 12%, deionized water 60.5%, tea polyphenols 12%, hydroxylamine phosphate 1%, preservative 0.5%, antibacterial agent 1%, peppermint oil 5% and nano photocatalyst 8 %.

[0046]

[0047] A preparation method for formaldehyde-removing color-changing gel, comprising the following steps:

[0048] S1. Weigh the raw materials according to the weight ratio, and place the raw materials in the designated position for preparation;

[0049] S2. Add tea polyphenols to deionized water, place in a stirred tank at a temperature of 50°C for 0.5 h, stir at a speed of 60 r / min, stir and mix evenly, and cool to obtain a mixed solution;

[0050] S3. Put the nano photocatalyst and hydroxylamine phosphate into a stirring tank, stir for 1 hour, mix evenly, and obtain a mixed powder;

[0051]S4. Add mixed powder, preservative, antibacterial agent and peppermint oil to the mixed solution, control the temperature at 30°C, stir at a speed of 100r / min...

Embodiment 2

[0059] Embodiment 2, by weight ratio is gel powder 15.5%, deionized water 42.8%, tea polyphenols 17.2%, hydroxylamine phosphate 3%, antiseptic 1.4%, antibacterial agent 3%, peppermint oil 5.6% and nano photocatalyst 11.5% %.

[0060]

[0061] A preparation method for formaldehyde-removing color-changing gel, comprising the following steps:

[0062] S1. Weigh the raw materials according to the weight ratio, and place the raw materials in the designated position for preparation;

[0063] S2. Add tea polyphenols to deionized water, place in a stirred tank at a temperature of 70°C for 1.5 hours, stir at a speed of 120r / min, stir and mix evenly, and cool to obtain a mixed solution;

[0064] S3. Put the nano photocatalyst and hydroxylamine phosphate into a stirring tank, stir for 3 hours, mix evenly, and obtain a mixed powder;

[0065] S4. Add mixed powder, preservative, antibacterial agent and peppermint oil to the mixed solution, control the temperature at 50° C., stir at a s...

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Abstract

The invention discloses a preparation method of formaldehyde-removing color-changing gel. The preparation method comprises the following steps: S1, weighing raw materials according to a weight ratio, and placing the raw materials at a specified position for preparation; S2, adding tea polyphenol into deionized water, putting the mixture into a stirring kettle with a temperature of 50-70 DEG C, carrying out uniform stirring and mixing, and performing cooling to obtain a mixed solution; S3, putting a nanometer photocatalyst and hydroxylamine phosphate into a stirring tank, conducting stirring for 1-3 hours, and carrying out uniform mixing to obtain mixed powder; S4, adding the mixed powder, a preservative, an antibacterial agent and peppermint oil into the mixed solution, controlling the temperature at 30-50 DEG C, and carrying out uniform stirring and mixing to obtain a pretreated solution; and S5, putting the pretreated liquid and the gel powder into a heating tank with a temperature of 100-130 DEG C, carrying out stirring for 2-4 h and taking a product out for cooling to room temperature so as to obtain the formaldehyde-removing color-changing gel. The added tea polyphenol can react with pollutants such as formaldehyde in indoor air, so formaldehyde is removed; and the tea polyphenol is free of toxicity and quite safe to use.

Description

technical field [0001] The invention relates to the technical field of formaldehyde removal, in particular to a method for preparing a color-changing gel for removing formaldehyde. Background technique [0002] Formaldehyde is an organic chemical substance. It is a colorless and irritating gas. It is irritating to human eyes and nose. Formaldehyde, the incomplete combustion of fuel and tobacco leaves also releases formaldehyde. Medically, formaldehyde is also often used as a preservative and disinfectant. The main routes of human exposure to formaldehyde are inhalation through the respiratory tract, ingestion through the mouth and contact through the skin. Formaldehyde poisoning It can cause tearing eyes, conjunctival congestion and inflammation, skin allergies, nasopharyngeal discomfort, cough, acute and chronic bronchitis and other respiratory diseases, and can also cause nausea, vomiting, and gastrointestinal disorders. Among indoor air pollutants, formaldehyde is very ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/80B01D53/72B01J13/00A61L9/013A61L101/56
CPCB01D53/8668B01D53/80B01D53/72B01J13/0065B01J13/0056B01J13/0052A61L9/013B01D2255/802A61L2209/21
Inventor 付强魏玉喆杨善宇
Owner 青岛众祥环保科技有限公司
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