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Efficient formaldehyde scavenging agent and preparation method thereof

A formaldehyde scavenger, high-efficiency technology, applied in separation methods, chemical instruments and methods, separation of dispersed particles, etc., can solve the problems of re-pollution, residual organic solvents, etc., and achieve the effect of purifying the air

Inactive Publication Date: 2018-01-16
GUANGZHOU YIJU ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main components of the current general-purpose formaldehyde scavenger are negative ion thermoelectric effect reaction solution, surface sealant, active amino group and other components. Because they contain organic solvents, although they can effectively remove formaldehyde, they also leave organic solvents in the parts where the formaldehyde scavenger is used. , causing re-contamination

Method used

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

Examples

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preparation example Construction

[0034] The present invention also provides a preparation method of high-efficiency formaldehyde scavenger, comprising:

[0035] The steps of preparing nano-titanium dioxide:

[0036] Add the tetrabutyl titanate solution into absolute ethanol to prepare a tetrabutyl titanate ethanol solution with a weight percentage of 12-18%, and prepare a mixed solution of deionized water and ethanol at a ratio of 1:3.5 by volume. Drop a volume of deionized water and ethanol mixture into the tetrabutyl titanate ethanol solution, and stir while adding it. The temperature of the solution is kept at 28-30°C. After the deionized water and ethanol mixture is completely dropped into tetrabutyl titanate After the ester ethanol solution, continue to stir for 2-3 hours to obtain a uniform and transparent titanium dioxide sol; let the sol stand overnight, heat up to 120°C under vacuum at a heating rate of 5°C / min, keep it warm for 12 hours, and after grinding , raising the temperature to 480°C in an a...

Embodiment 1-5

[0045] Embodiment 1-5 efficient formaldehyde scavenger

[0046] The raw materials were weighed according to the proportions in Table 1, and the high-efficiency formaldehyde scavenger was prepared according to the following steps. The difference was that the added raw material proportions were different. See Table 1 for details:

[0047] Table 1 embodiment 1-5 and the raw material ratio table of comparative example 1-3

[0048]

[0049] Remarks: The natural plant extracts in the table are prepared by extracting the following components by weight: 10 parts of catechu, 12 parts of Dajinhua, 15 parts of cassia seed, 6 parts of aloe, and 6 parts of sansevieria. The active adsorbent is composed of sepiolite and attapulgite; the weight ratio of the sepiolite and attapulgite is 2:1.

[0050] Embodiment 3 is an embodiment with better effect of the present invention. The difference between Comparative Example 1 and Example 3 is that no natural plant extract and active adsorbent are ...

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Abstract

The invention discloses an efficient formaldehyde scavenging agent and a preparation method thereof. The efficient formaldehyde scavenging agent is prepared from the following ingredients in parts byweight: 8-15 parts of nanometer titanium dioxide, 10-18 parts of nanometer zinc dioxide, 5-35 parts of a natural plant extract and 8-25 parts of an active adsorbent. The efficient formaldehyde scavenging agent can be applied into construction materials, after solidification, the nanometer character of the efficient formaldehyde scavenging agent self is adsorbed on the surface of a plate to form astable coating, the bacteria can be effectively inhibited, the air can be purified, the indoor pollutants such as formaldehyde, TVOC (Total Volatile Organic Compound) and benzene can be cleared away,especially for the formaldehyde, the clearance rate can be up to 98% or more.

Description

technical field [0001] The invention relates to the field of new building materials, more specifically, to a high-efficiency formaldehyde scavenger and a preparation method thereof. Background technique [0002] Formaldehyde is a colorless prostatic irritating gas, which has been determined by the World Health Organization as a carcinogenic and teratogenic substance. Formaldehyde release pollution can cause tears in the eyes, hyperemia and inflammation of the cornea and conjunctiva, skin allergies, nasopharyngeal discomfort, cough, acute Respiratory diseases such as bronchitis can also cause nausea, vomiting, and gastrointestinal disorders. In severe cases, it can also cause persistent headaches, pneumonia, pulmonary edema, loss of appetite, and even death. The main reason for the increase in asthma in children aged 3-5 years. The main sources of formaldehyde in modern life include professional materials and new modular furniture, chemical fiber carpets, indoor smoking, etc...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/72B01D53/44
Inventor 杜春华
Owner GUANGZHOU YIJU ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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