CN113663510A - Indoor deodorant after decoration and preparation method thereof - Google Patents

Indoor deodorant after decoration and preparation method thereof Download PDF

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Publication number
CN113663510A
CN113663510A CN202110979948.6A CN202110979948A CN113663510A CN 113663510 A CN113663510 A CN 113663510A CN 202110979948 A CN202110979948 A CN 202110979948A CN 113663510 A CN113663510 A CN 113663510A
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core
shell structure
biological enzyme
adsorbent
deodorant
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刘礼明
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Xinyu Causal Decoration Co ltd
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Xinyu Causal Decoration Co ltd
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • B01D53/85—Biological processes with gas-solid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/80—Type of catalytic reaction
    • B01D2255/802—Photocatalytic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract

The invention discloses a decoration indoor deodorant and a preparation method thereof, wherein the decoration indoor deodorant is prepared from the following raw materials: nanometer photocatalyst, biological enzyme, 2-imidazolidinone, adsorbent, core-shell structure biological enzyme, plant extract, bactericide, flavoring agent, dispersant and deionized water. Firstly, the nano photocatalyst, the biological enzyme and the 2-imidazolidinone can quickly perform adsorption, decomposition and other reactions with volatile organic compound molecules to generate non-toxic molecules, effectively reduce the concentration of indoor volatile organic compounds, inhibit the volatile organic compounds with overhigh concentration accumulated due to continuous emission from causing great harm to human bodies, and secondly, the adsorbent, the biological enzyme with the core-shell structure and the plant extract slowly play a role in harmful substances to achieve the aim of long-acting property, and meanwhile, the nano photocatalyst, the biological enzyme and the 2-imidazolidinone have effectiveness and long-acting property.

Description

Indoor deodorant after decoration and preparation method thereof
Technical Field
The invention relates to the technical field of indoor deodorant, in particular to a decorated indoor deodorant and a preparation method thereof.
Background
The main pollutants caused by the materials are benzene, toluene, TVOC and the like, such as a wood board, the wood comes from nature and is non-toxic, the wood is bonded by urea-formaldehyde glue during processing to form a pollution source of formaldehyde, the main component of the glue used in the decoration is formaldehyde, and the paint contains a large amount of pungent benzene. The materials used by the furniture and formaldehyde generated by coatings, adhesives and the like used in the manufacturing process of the furniture also become one of main pollutants for indoor air pollution, and the formaldehyde has strong carcinogenic and carcinogenic effects. Accordingly, various decorative pollution deodorizers have been developed to adsorb and remove these volatile organic compounds.
In the prior art, the odor removing agent mainly comprises the following types: physical odor eliminators, chemical odor eliminators, microbial odor eliminators, and the like, each type of odor eliminators having its own advantages and odor elimination principles.
CN 201510274252.8A double-effect deodorant for decoration is prepared by adding optimized plant extractive solution with effects of rapidly neutralizing harmful gases such as formaldehyde and benzene series during production based on nanometer titanium dioxide aqueous solution with photocatalytic activity. The deodorant not only has the function of quickly absorbing and converting harmful substances such as formaldehyde and the like of the plant-type deodorant, but also has the function of continuously decomposing free formaldehyde, benzene and ammonia in indoor or in-vehicle air in the ultraviolet light and visible light ranges because the photocatalyst can be adsorbed on the surface of the material, so that the air purifying function of the double-effect decoration deodorant greatly exceeds that of a pure photocatalyst deodorant and a pure plant-type deodorant, and the indoor air can be purified more efficiently. Although it can purify indoor air efficiently and remove peculiar smell, its action is short of persistence, so that a room deodorant after decoration is developed to improve the above problems.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a room deodorizer after decoration and a preparation method thereof, wherein the room deodorizer can actively capture and adsorb harmful gases such as formaldehyde, benzene, TVOC, etc. after decoration, and change the spatial structure of odor molecules, so that the odor molecules are converted into odorless or harmless molecules, thereby effectively reducing indoor air pollution, shortening the standing time after decoration, and having effectiveness and long-lasting effect.
In order to achieve the above object, the present invention adopts the following aspects
A room deodorant after decoration comprises the following raw materials:
nanometer photocatalyst, biological enzyme, 2-imidazolidinone, adsorbent, core-shell structure biological enzyme, plant extract, bactericide, flavoring agent, dispersant and deionized water;
a preparation method of a room deodorant after decoration comprises the following steps:
a1, preparing an adsorbent and a biological enzyme with a core-shell structure;
a2, mixing and stirring the nano photocatalyst, the biological enzyme, the adsorbent, the biological enzyme with the core-shell structure, the plant extract and the deionized water at the stirring speed of 50-80 rpm;
a3, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, stirring uniformly at the stirring speed of 50-80rpm, and standing for 4-8 hours.
The nano photocatalyst is an optimized and improved agent specially customized for formaldehyde content of a new house after decoration, the agent can not react only by directly irradiating sunlight but also can perform catalytic decomposition reaction by visible light, and the main components of the nano photocatalyst are nano silver and nano titanium dioxide; the biological enzyme is protein extracted from plants, has very good degradation capability on harmful substances, the raw material of the protein extracted from the plants is hundreds of times of the degradation capability of common raw materials, and the main mechanism is that the biological enzyme generated by fungi is utilized and can catalyze and degrade formaldehyde; the adsorbent adsorbs harmful substances in the air by utilizing the characteristics of porous structure and large specific surface area of the substances; the 2-imidazolidinone is used as a formaldehyde capture agent, has the function of absorbing and decomposing formaldehyde, and can quickly decompose residual formaldehyde in the air; the core-shell structure biological enzyme is a biological enzyme coating layer of substance, the substance reacts firstly, the biological enzyme has the effect after the reaction, and the slow release effect can be achieved in the air; the bactericide can kill bacteria in the air; flavoring agents can improve the odor of the odor eliminating agent; the dispersant may make the ingredients therein more uniform.
Preferably, the indoor deodorant after decoration comprises the following raw materials in parts by weight:
5-10 parts of nano photocatalyst, 3-6 parts of biological enzyme, 1-2 parts of 2-imidazolidinone, 3-5 parts of adsorbent, 3-5 parts of core-shell structure biological enzyme, 3-10 parts of plant extract, 0.2-0.6 part of bactericide, 0.1-0.3 part of flavoring agent, 0.05-0.09 part of dispersing agent and 25-40 parts of deionized water.
Preferably, the adsorbent is nano-silica, nano-kaolin or nano-diatomaceous earth.
Preferably, the adsorbent is a core-shell structure adsorbent, and is core-shell structure silicon dioxide, core-shell structure kaolin or core-shell structure diatomite.
Preferably, the core-shell structure adsorbent is a core-shell structure adsorbent with different shell wall thicknesses, the core-shell structure biological enzyme is a core-shell structure biological enzyme with different shell wall thicknesses, the coating materials of the core-shell structure adsorbent and the core-shell structure biological enzyme are both titanium dioxide, and the particle size of the titanium dioxide is 50 nanometers to 10 micrometers.
Preferably, the preparation method of the core-shell structure substance comprises the following steps:
s1, preparing a solution containing the encapsulation material, wherein the solid content of the solution is 20-60% by weight, and homogenizing the solution;
and S2, adding the core substance into the homogeneous solution and continuously stirring to obtain the core-shell structure substance.
Preferably, a modifier is added in S2 so that the pH of the solution is between the isoelectric points of the core material and the encapsulation material, and the modifier is a nitric acid solution, an acetic acid solution, an oxalic acid solution, a phosphoric acid solution, or ethanol.
Preferably, the plant extract is one or more of cactus extract, aloe plant extract, chlorophytum comosum extract, sansevieria trifasciata extract, kaffir lily extract and arrowroot extract.
Preferably, the bactericide is chlorogenic acid or caffeic acid, and the antibacterial substance with plant spectrum is selected to kill bacteria in the air.
Preferably, the flavoring agent is plant essential oil, and the plant essential oil is citronella oil, lemon oil or citrus oil, so that the indoor deodorant is flavored and the smell of the indoor deodorant is more acceptable to people.
Preferably, the dispersant is polyethylene glycol 200 or 400.
The invention has the beneficial effects that:
according to the invention, firstly, the nano photocatalyst, the biological enzyme and the 2-imidazolidinone can quickly perform adsorption, decomposition and other reactions with volatile organic compound molecules to generate non-toxic molecules, so that the concentration of indoor volatile organic compounds is effectively reduced, and the phenomenon that the volatile organic compounds accumulated in an overhigh concentration due to continuous emission form great harm to human bodies is inhibited, secondly, the adsorbent, the core-shell structure biological enzyme and the plant extract slowly play a role in harmful substances to achieve the aim of long-acting performance, and the adsorbent, the core-shell structure biological enzyme and the plant extract can actively capture and adsorb harmful gases such as formaldehyde, benzene, TVOC and the like after decoration, change the spatial structure of peculiar smell molecules, and convert the peculiar smell molecules into tasteless or harmless molecules to human bodies, so that the indoor air pollution is effectively reduced, the placement time after decoration is shortened, and meanwhile, the effectiveness and the long-acting performance are achieved.
The indoor deodorant prepared by the invention achieves the purpose of slow release by adopting a core-shell structure, the shell wall plays a role in air firstly, the inner core plays a role secondly, the effect is lasting, and the effect can last for 3-5 days after one-time spraying.
The components of the invention are all pure natural components, which are environment-friendly, pollution-free, non-flammable, non-corrosive, non-allergic, non-irritating, safe and reliable.
The invention combines the advantages of two technologies of removing harmful substances, namely photocatalyst and biological enzyme, has strong adsorption, capture and polymerization removal effects on formaldehyde, benzene, TVOC and the like, thoroughly removes peculiar smell generated by decoration, has a removal rate of over 95 percent, has stable effect, can exert the effect for a long time, and can last for several days after being used once.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the following will clearly and completely describe the technical solutions in the present application with reference to the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application shall fall within the protection scope of the present application.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
The indoor deodorant after decoration comprises the following raw materials in parts by weight:
5 parts of nano photocatalyst, 6 parts of biological enzyme, 1 part of 2-imidazolidinone, 5 parts of adsorbent, 3 parts of core-shell structure biological enzyme, 10 parts of plant extract, 0.2 part of bactericide, 0.3 part of flavoring agent, 0.05 part of dispersing agent and 25 parts of deionized water.
Wherein the adsorbent is silicon dioxide with a core-shell structure; the plant extract is cactus extractive solution; the bactericidal property is chlorogenic acid; the flavoring agent is citronella oil; the dispersant is polyethylene glycol 200.
The method of preparing a post-finishing room odor remover of example 1, comprising the steps of:
a1, preparing an adsorbent and a biological enzyme with a core-shell structure;
a2, mixing and stirring the nano photocatalyst, the biological enzyme, the adsorbent, the biological enzyme with the core-shell structure, the plant extract and the deionized water at the stirring speed of 60 rpm;
a3, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, uniformly stirring at the stirring speed of 60rpm, and standing for 5 hours.
Example 2
The indoor deodorant after decoration comprises the following raw materials in parts by weight:
7.5 parts of nano photocatalyst, 4.5 parts of biological enzyme, 1.5 parts of 2-imidazolidinone, 4 parts of adsorbent, 4 parts of core-shell structure biological enzyme, 6.5 parts of plant extract, 0.4 part of bactericide, 0.2 part of flavoring agent, 0.07 part of dispersing agent and 33 parts of deionized water.
Wherein the adsorbent is core-shell structured kaolin; the plant extract is Chlorophytum comosum plant extract; the bactericidal property is chlorogenic acid; the flavoring agent is lemon oil; the dispersant is polyethylene glycol 400.
The method for preparing a post-finishing indoor deodorant of example 2, comprising the steps of:
a1, preparing an adsorbent and a biological enzyme with a core-shell structure;
a2, mixing and stirring the nano photocatalyst, the biological enzyme, the adsorbent, the biological enzyme with the core-shell structure, the plant extract and the deionized water at the stirring speed of 60 rpm;
a3, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, uniformly stirring at the stirring speed of 60rpm, and standing for 5 hours.
Example 3
The indoor deodorant after decoration comprises the following raw materials in parts by weight:
10 parts of nano photocatalyst, 3 parts of biological enzyme, 2 parts of 2-imidazolidinone, 3 parts of adsorbent, 5 parts of core-shell structure biological enzyme, 3 parts of plant extract, 0.6 part of bactericide, 0.1 part of flavoring agent, 0.09 part of dispersing agent and 40 parts of deionized water.
Wherein the adsorbent is diatomite with a core-shell structure; the plant extract is sansevieria trifasciata extract; the bactericidal property is caffeic acid; the flavoring agent is citrus oil; the dispersant is polyethylene glycol 400.
The method of preparing a post-finishing room odor remover of example 3, comprising the steps of:
a1, preparing an adsorbent and a biological enzyme with a core-shell structure;
a2, mixing and stirring the nano photocatalyst, the biological enzyme, the adsorbent, the biological enzyme with the core-shell structure, the plant extract and the deionized water at the stirring speed of 60 rpm;
a3, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, uniformly stirring at the stirring speed of 60rpm, and standing for 5 hours.
Comparative example 1
The indoor deodorant after decoration comprises the following raw materials in parts by weight:
7.5 parts of nano photocatalyst, 4.5 parts of biological enzyme, 1.5 parts of 2-imidazolidinone, 6.5 parts of plant extract, 0.4 part of bactericide, 0.2 part of flavoring agent, 0.07 part of dispersing agent and 33 parts of deionized water.
Wherein the adsorbent is core-shell structured kaolin; the plant extract is Chlorophytum comosum plant extract; the bactericidal property is chlorogenic acid; the flavoring agent is lemon oil; the dispersant is polyethylene glycol 400.
The difference from the embodiment 2 is that: without adsorbent and core-shell structure biological enzyme.
The method for preparing a post-finishing indoor deodorant of comparative example 1, comprising the steps of:
a1, mixing and stirring the nano photocatalyst, the biological enzyme, the plant extract and the deionized water at a stirring speed of 60 rpm;
a2, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, uniformly stirring at the stirring speed of 60rpm, and standing for 5 hours.
Comparative example 2
The indoor deodorant after decoration comprises the following raw materials in parts by weight:
1.5 parts of 2-imidazolidinone, 4 parts of adsorbent, 4 parts of core-shell structure biological enzyme, 6.5 parts of plant extract, 0.4 part of bactericide, 0.2 part of flavoring agent, 0.07 part of dispersing agent and 33 parts of deionized water.
Wherein the adsorbent is core-shell structured kaolin; the plant extract is Chlorophytum comosum plant extract; the bactericidal property is chlorogenic acid; the flavoring agent is lemon oil; the dispersant is polyethylene glycol 400.
The difference from the embodiment 2 is that: does not contain nano photocatalyst and biological enzyme.
The method for preparing a post-finishing indoor deodorant of comparative example 2, comprising the steps of:
a1, preparing an adsorbent and a biological enzyme with a core-shell structure;
a2, mixing and stirring the adsorbent, the core-shell structure biological enzyme, the plant extract and deionized water at a stirring speed of 60 rpm;
a3, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, uniformly stirring at the stirring speed of 60rpm, and standing for 5 hours.
Experimental example 1
(1) The test method comprises the following steps: the effect of removing indoor pollutants by the indoor deodorant after decoration according to examples 1-3 and comparative examples 1-2 is performed according to test standard QB/T2761-2006 & method for determining purification effect of indoor air purification product & lt & gt.
(2) Test instruments and equipment: bubble absorption tube (with 5mL and 10mL scale mark), air sampler (flow range is 0-2L/min, flow is stable), 10mL utensil stopper colour comparison tube, active carbon sampling tube, spectrophotometer (have 500nm wavelength, be furnished with 10mm optical path's cell), gas chromatograph (with hydrogen flame ionization detector), portable formaldehyde apparatus.
(3) Sample preparation: in 3 pieces of 1m2After decoration, the indoor deodorant is sprayed for three times on base paper made of the inert material, the base paper is sprayed into fine mist as much as possible by a small spray pump, the base paper is sprayed for the first time and naturally dried, then the base paper is sprayed for the second time, and then the base paper is sprayed for the third time after the second time and naturally dried, wherein the dosage of the decoration pollution deodorant is 60 g. And hanging the sample in a test chamber after the sample is naturally dried.
(4) The test conditions are as follows: the test was carried out in two identical closed air test chambers, A being a blank chamber and B being a sample chamber, the volume of the test chamber being 1.5m3The test conditions were carried out at normal temperature and pressure. The air test chamber is clean, so that the air quality in the chamber is purified to the maximum extent, and no pollutant is ensured.
(5) Preparation of the release source: a5-layer 17cm x 40cm piece of medical absorbent gauze was wound on 2 glass rods 5mm in diameter and 30cm in length, fixed with cotton thread and placed upright in a 500mL reagent bottle containing 200mL of contaminants, formaldehyde 0.2%, ammonia 1%, benzene 0.06%, toluene 0.1%, and xylene 0.4%, respectively, as analytical grade reagents. The container is pasted with Ai and Bi marks, and can be put into use after the gauze is completely wetted.
(6) The test steps are as follows: 1. suspending untreated base paper in a blank test chamber A, and suspending base paper of the indoor deodorant after decoration in a test chamber B; 2. respectively placing containers Ai and Bi assembled with pollutant release sources in a blank test chamber A and a sample test chamber B, and immediately closing the chamber doors; 3. starting fans of the blank test chamber A and the sample test chamber B, stirring for 1 minute to uniformly mix air in the chamber with pollutants released by the release source, simultaneously closing the fans, sampling air in the blank chamber, and determining a concentration value of the pollutants in the air in the blank chamber as an initial concentration which is recorded as Co; 4. after 24 hours, the concentration of air pollutants in the two chambers is sampled, analyzed and tested, namely A, B in a certain time period, and recorded as CA and CB.
The contaminant removal rate was calculated according to the following formula:y ═ CA-CB)/CA × 100. In the formula: y-removal,%; pollutant concentration value of blank test chamber after CA-24h, mg/m3(ii) a Concentration value of pollutant in sample test chamber after CB-24 hours, mg/m3。
Wherein, the detection method of the pollutant formaldehyde is carried out according to GB/T16129-1995 or GB/T18204.26-2000; the benzene detection method was carried out according to GB/T11737-1989.
(7) And (3) detection results: after detection (taking formaldehyde and benzene as examples),
in example 1, the initial formaldehyde concentration in the sample test chamber was 0.90mg/m3The formaldehyde removal rate after 24 hours is 94.7%; the formaldehyde removal rate after 72 hours is 97.8%; the initial benzene concentration in the sample test chamber is 0.93mg/m3The benzene removal rate after 24 hours was 92.7%, and the benzene removal rate after 72 hours was 96.5%.
In example 2, the initial formaldehyde concentration in the sample test chamber was 0.90mg/m3The formaldehyde removal rate after 24 hours is 95.4 percent; the formaldehyde removal rate after 72 hours is 98.8%; the initial benzene concentration in the sample test chamber is 0.93mg/m3The benzene removal rate after 24 hours was 93.2%, and the benzene removal rate after 72 hours was 97.2%.
In example 3, the initial formaldehyde concentration in the sample test chamber was 0.90mg/m3The formaldehyde removal rate after 24 hours is 95.1 percent; the formaldehyde removal rate after 72 hours is 98.3 percent; the initial benzene concentration in the sample test chamber is 0.93mg/m3The benzene removal rate after 24 hours was 92.6%, and the benzene removal rate after 72 hours was 96.7%.
In comparative example 1, the initial formaldehyde concentration in the test chamber of the sample was 0.90mg/m3The formaldehyde removal rate after 24 hours is 93.9 percent; the formaldehyde removal rate after 72 hours is 94.3%; the initial benzene concentration in the sample test chamber is 0.93mg/m3The benzene removal rate after 24 hours was 91.6%, and the benzene removal rate after 72 hours was 92.4%.
In comparative example 2, the initial formaldehyde concentration in the test chamber of the sample was 0.90mg/m3The formaldehyde removal rate after 24 hours is 56.2 percent; the formaldehyde removal rate after 72 hours was 88.7%; the initial benzene concentration in the sample test chamber is 0.93mg/m3The benzene removal rate after 24 hours was 47.5%, and after 72 hours the benzene removal rateThe ratio was 83.6%.
As can be seen from the test results, the removal rate of noxious substances after 24 hours in comparative example 1 was slightly lower than that in example 2, but the removal rate of noxious substances after 72 hours was far less than that in example 2, thus demonstrating that the after-finish indoor deodorant prepared in comparative example 1 had poor long-lasting properties. The removal rate of harmful substances after 24 hours of the comparative example 2 does not reach the standard, and the removal rate of harmful substances after 72 hours is basically more than 80%, so that the indoor deodorant prepared in the comparative example 2 after decoration has unqualified effectiveness but good long-term effect.
The action mechanisms of the photocatalyst and the biological enzyme are the prior art, and are not described herein, the greatest characteristic of the invention is that the biological enzyme and the adsorption material are wrapped by using titanium dioxide as a wrapping material, the biological enzyme and the adsorption material are turned to play roles after the external titanium dioxide reacts, the long-acting effect is achieved, and the duration time can be selected according to the thickness of the wrapping material.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. The indoor deodorant after decoration is characterized by comprising the following raw materials:
nanometer photocatalyst, biological enzyme, 2-imidazolidinone, adsorbent, core-shell structure biological enzyme, plant extract, bactericide, flavoring agent, dispersant and deionized water;
the preparation method of the indoor deodorant after decoration comprises the following steps:
a1, preparing an adsorbent and a biological enzyme with a core-shell structure;
a2, mixing and stirring the nano photocatalyst, the biological enzyme, the adsorbent, the biological enzyme with the core-shell structure, the plant extract and the deionized water at the stirring speed of 50-80 rpm;
a3, adding 2-imidazolidinone, a bactericide, a flavoring agent and a dispersing agent, stirring uniformly at the stirring speed of 50-80rpm, and standing for 4-8 hours.
2. A finished room deodorant as claimed in claim 1, which is prepared from the following raw materials in parts by weight:
5-10 parts of nano photocatalyst, 3-6 parts of biological enzyme, 1-2 parts of 2-imidazolidinone, 3-5 parts of adsorbent, 3-5 parts of core-shell structure biological enzyme, 3-10 parts of plant extract, 0.2-0.6 part of bactericide, 0.1-0.3 part of flavoring agent, 0.05-0.09 part of dispersing agent and 25-40 parts of deionized water.
3. The indoor deodorant after finishing according to claim 1, wherein the adsorbent is nano silica, nano kaolin or nano diatomite.
4. A finished indoor deodorant according to claim 3, wherein the adsorbent is a core-shell structure adsorbent, and is core-shell structure silica, core-shell structure kaolin or core-shell structure diatomite.
5. A finished indoor deodorant according to claim 4, wherein the core-shell structure adsorbent comprises core-shell structure adsorbents with different shell wall thicknesses, the core-shell structure biological enzymes comprise core-shell structure biological enzymes with different shell wall thicknesses, and the coating materials of the core-shell structure biological enzymes and the core-shell structure biological enzymes are both titanium dioxide with particle sizes of 50 nanometers to 10 micrometers.
6. A finished room deodorant according to claim 4, wherein the core-shell structured substance is prepared by a method comprising:
s1, preparing a solution containing the encapsulation material, wherein the solid content of the solution is 20-60% by weight, and homogenizing the solution;
and S2, adding the core substance into the homogeneous solution and continuously stirring to obtain the core-shell structure substance.
7. A finished room deodorant as claimed in claim 6 wherein a modifier is added to S2 to bring the pH of the solution between the isoelectric points of the core material and the encapsulating material, the modifier being a nitric acid solution, an acetic acid solution, an oxalic acid solution, a phosphoric acid solution or ethanol.
8. The indoor deodorant for decoration according to claim 1, wherein the plant extract is one or more of cactus extract, aloe plant extract, chlorophytum comosum extract, sansevieria trifasciata extract, kaffir lily extract and arrowroot extract.
9. The room finishing deodorant as claimed in claim 1, wherein the bactericide is chlorogenic acid or caffeic acid.
10. A finished room deodorant as claimed in claim 1 wherein the odorant is a plant essential oil, the plant essential oil being citronella oil, lemon oil or citrus oil.
CN202110979948.6A 2021-08-25 2021-08-25 Indoor deodorant after decoration and preparation method thereof Pending CN113663510A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114176101A (en) * 2021-12-17 2022-03-15 富思特新材料科技发展股份有限公司 Antibacterial deodorant and preparation method and application thereof
CN114307586A (en) * 2022-01-13 2022-04-12 广州天与地投资服务有限公司 Formaldehyde scavenger combining photocatalyst with plant enzyme

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114176101A (en) * 2021-12-17 2022-03-15 富思特新材料科技发展股份有限公司 Antibacterial deodorant and preparation method and application thereof
CN114307586A (en) * 2022-01-13 2022-04-12 广州天与地投资服务有限公司 Formaldehyde scavenger combining photocatalyst with plant enzyme

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