CN111001286A - Formaldehyde purifying agent and preparation method and application thereof - Google Patents
Formaldehyde purifying agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN111001286A CN111001286A CN201911397254.0A CN201911397254A CN111001286A CN 111001286 A CN111001286 A CN 111001286A CN 201911397254 A CN201911397254 A CN 201911397254A CN 111001286 A CN111001286 A CN 111001286A
- Authority
- CN
- China
- Prior art keywords
- extract
- parts
- formaldehyde
- water
- amino acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid 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
- 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
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a formaldehyde purifying agent and a preparation method and application thereof, wherein the raw materials for preparing the formaldehyde purifying agent comprise the following components in parts by weight: 2-10 parts of hyperbranched polyamide grafted chitosan, 1-5 parts of amino acid, 1-5 parts of plant extract, 1-5 parts of lignin quaternary ammonium salt and 50-90 parts of water. The components in the formaldehyde purifying agent act together to remove formaldehyde, the formaldehyde can be combined with amino acid and amino groups of hyperbranched polyamide grafted chitosan to generate a hydroxymethyl compound, the hyperbranched polyamide grafted chitosan can be dissolved in water, and the lignin quaternary ammonium salt is dissolved in water and used as a surfactant to be compounded with the amino acid and the hyperbranched polyamide grafted chitosan so as to effectively capture free formaldehyde; the plant extract contains substances with strong activity and capable of capturing free formaldehyde, has strong formaldehyde capturing capability, good stability when being matched with other components for use, and has the advantages of high formaldehyde purifying speed and no secondary pollution due to the matching of various substances.
Description
Technical Field
The invention relates to the technical field of indoor air purification, in particular to a formaldehyde purifying agent and a preparation method and application thereof.
Background
With the improvement of living standard, indoor decoration becomes a topic gradually, and especially, part of decoration materials can release toxic and harmful substances to cause indoor environmental pollution. Formaldehyde is one of main pollutants in indoor environment, has great harm to human body, has stimulation effect on eyes, mucous membranes and respiratory tracts, and can cause a plurality of diseases such as intelligence reduction, cranial nerve injury, immunity reduction, leukemia, nasopharyngeal tumors and the like of infants if living in an environment with excessive formaldehyde content for a long time. According to statistics, within 1-6 months after decoration, the formaldehyde exceeding rate reaches 80% indoors, and the formaldehyde exceeding rate approaches 100% indoors in meeting rooms and offices; after decoration for 3 years, the exceeding rate still reaches more than 50%. The effective reduction of formaldehyde concentration in indoor air has become an important research direction.
At present, the types of the common formaldehyde purification products in domestic markets mainly comprise a photocatalysis type, an adsorption type, a reaction type and a composite type. The photocatalytic type generally adopts semiconductor materials, and most indoor organic pollutants can be decomposed under the excitation and irradiation of ultraviolet light. However, the photocatalytic type product needs to work under ultraviolet irradiation, the indoor ultraviolet irradiation intensity is low, the photocatalytic irradiation efficiency cannot be met even if an ultraviolet lamp is placed in the purifier, and in addition, ozone is easily generated by ultraviolet irradiation. Although the adsorption type often uses a porous adsorbent, this method is fast in purifying formaldehyde, but tends to cause saturation of adsorption, and thus, desorption treatment is difficult. The reactive purification principle is to remove formaldehyde by reacting a substance containing active groups in the coating with formaldehyde to generate a stable compound.
Disclosure of Invention
An object of the present invention is to provide a formaldehyde scavenger capable of effectively adsorbing formaldehyde.
In order to achieve the purpose, the invention adopts the following technical scheme:
a formaldehyde purifying agent is prepared from the following raw materials in parts by weight: 2-10 parts of hyperbranched polyamide grafted chitosan, 1-5 parts of amino acid, 1-5 parts of plant extract, 1-5 parts of lignin quaternary ammonium salt and 50-90 parts of water.
In a further embodiment, the raw materials for preparing the formaldehyde scavenger comprise the following components in parts by weight: 5-10 parts of hyperbranched polyamide grafted chitosan, 2.5-5 parts of amino acid, 3-5 parts of plant extract, 1-5 parts of lignin quaternary ammonium salt and 60-80 parts of water.
In some embodiments, the hyperbranched polyamide-grafted chitosan is prepared by the following method: under the condition of ice-water bath, dropwise adding a methanol solution of methyl acrylate into diethylenetriamine, then reacting for 3-6h at 20-30 ℃ in a protective gas atmosphere, removing the solvent, and heating to 140-160 ℃ under reduced pressure for reacting for 3-5h to obtain hyperbranched polyamidoamine; dissolving chitosan in water, dropwise adding a glutaraldehyde solution and a hyperbranched polyamidoamine aqueous solution into the water, heating for reaction, washing the obtained solid, and drying to obtain the hyperbranched polyamide grafted chitosan.
In some embodiments, the amino acids are at least two of glycine, lysine, arginine, proline.
In a further embodiment, the amino acid is a mixture of glycine, lysine and proline in a weight ratio of 5-10:3-8: 2-8.
In some embodiments, the plant extract comprises one or more of rhinacanthus nasutus extract, schefflera octophylla extract, gerbera extract, artemisia argyi extract, aloe vera extract, phyllostachys pubescens extract, dendrocalamus giganteus extract, and dandelion extract.
In some embodiments, the plant extract is a mixture of taro extract and schefflera octophylla extract.
In some specific embodiments, the plant extract is a combination of at least two of rhinacanthus nasutus extract, a mixture of schefflera octophylla extract, gerbera jamesonii extract, and artemisia argyi extract, and the weight ratio is 3-5:2-5:0-8: 0-5.
In some specific embodiments, the plant extract is a mixture of aloe extract, phyllostachys pubescens extract, monstera deliciosa extract and dandelion extract in a weight ratio of 1-5:2-5:1-5: 1-5.
In some embodiments, the plant extract comprises rhinacanthus nasutus extract, schefflera octophylla extract, gerbera extract, artemisia argyi extract, aloe vera extract, phyllostachys pubescens extract, monstera deliciosa extract, and dandelion extract.
In a further embodiment, the taro extract is a 30-70% ethanol extract of taro, having an active ingredient content of 15-20%; the said Caralluma extract is 30-50% ethanol extract of Caralluma, the active ingredient content is 15-20%; the gerbera jamesonii extract is a water extract of gerbera jamesonii, and the content of active ingredients is 10-15%; the folium Artemisiae Argyi extract is 30-50% ethanol extract, and the content of active ingredient is 15-20%; the aloe extract is 40-60% ethanol extract of aloe leaf, and the content of active ingredients is 15-20%; the moso bamboo extract is low-temperature reduced pressure distillation extract of moso bamboo, and the content of active ingredients is 10-15%; the monstera deliciosa extract is a water extract of monstera deliciosa, and the active ingredient is 10-15%; the herba Taraxaci extract is water extract of herba Taraxaci, and active ingredient is 10-15%.
The plant extractive solution can be obtained by water extraction, organic solvent extraction, steam distillation, and supercritical fluid extraction.
In some specific embodiments, the plant extract is prepared by the following method: taking fresh plant leaves or flowers, adding 30-80% ethanol, and soaking overnight, wherein the weight ratio of the plant leaves or flowers to the ethanol is 1: 10-25; ultrasonic-assisted extraction for 1-2h, centrifuging at 6000-10000r/min for 10-15min, filtering the filtrate with 0.45 μm microfiltration membrane, and storing in dark place.
In some specific embodiments, the plant extract is prepared by the following method: mixing plant materials, putting into a distillation device, adding water 1-5 times of the weight of the plant materials into the distillation device, heating and distilling under 0.3-0.5MPa to 95-100 deg.C, reducing pressure to 0.1MPa and 50-60 deg.C, distilling for 2-4 hr, collecting water vapor containing plant active components, and condensing.
In some specific embodiments, the plant extract is prepared by the following method: adding water 10-20 times the weight of fresh plant leaves or flowers into the fresh plant leaves or flowers, heating at 60-80 deg.C for 0.5-2 hr, filtering the obtained filtrate with 0.45 μm microfiltration membrane, and cold preserving in dark place.
The invention also provides a preparation method of the formaldehyde purifying agent, which comprises the steps of adding the hyperbranched polyamide grafted chitosan into water, heating to 70-100 ℃, adding the lignin quaternary ammonium salt, stirring for 30-60min, cooling to 20-30 ℃, sequentially adding the amino acid and the plant extract, and stirring for 0.5-1.5 h.
The invention also provides the application of the formaldehyde purifying agent in purifying indoor formaldehyde.
The invention has the beneficial effects that:
the invention combines hyperbranched polyamide grafted chitosan, amino acid, plant extract and lignin, and removes formaldehyde by combined action. The formaldehyde can be combined with amino acid and amino group of the hyperbranched polyamide grafted chitosan to generate hydroxymethyl compound, the hyperbranched polyamide grafted chitosan can be dissolved in water, and the lignin quaternary ammonium salt is dissolved in water and used as a surfactant to be compounded with the amino acid and the hyperbranched polyamide grafted chitosan, so that free formaldehyde can be effectively captured. The plant extract comprises a hairyvein agrimony extract, a schefflera octophylla extract, a gerbera jamesonii extract, a wormwood extract, an aloe extract, a moso bamboo extract, a monstera deliciosa extract and a dandelion extract, wherein the extracts contain substances with stronger activity and capable of capturing free formaldehyde, the formaldehyde capturing capability is strong, and the formaldehyde purifying capability is better when the extracts are matched with other components for use, and the formaldehyde capturing capability is good when the extracts are matched with various substances.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
The experimental procedures in the following examples are conventional unless otherwise specified. The test materials used in the following examples were purchased from a conventional biochemical reagent store unless otherwise specified. In the quantitative tests in the following examples, three replicates were set, and the data are the mean or the mean ± standard deviation of the three replicates.
The invention provides a formaldehyde purifying agent, which is prepared from the following raw materials in parts by weight: 2-10 parts of hyperbranched polyamide grafted chitosan, 1-5 parts of amino acid, 1-5 parts of plant extract, 1-5 parts of lignin quaternary ammonium salt and 50-90 parts of water. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 20-40 deg.C, adding lignin quaternary ammonium salt, stirring for 30-60min, cooling to 20-30 deg.C, sequentially adding amino acid and plant extractive solution, and stirring for 0.5-1.5 h.
The hyperbranched polyamide grafted chitosan is prepared by the following method: under the condition of ice-water bath, dropwise adding a methanol solution of methyl acrylate into diethylenetriamine, then reacting for 3-6h at 20-30 ℃ in a protective gas atmosphere, removing the solvent, and heating to 140-160 ℃ under reduced pressure for reacting for 3-5h to obtain hyperbranched polyamidoamine; dissolving chitosan in water, dropwise adding a glutaraldehyde solution and a hyperbranched polyamidoamine aqueous solution into the water, heating for reaction, washing the obtained solid, and drying to obtain the hyperbranched polyamide grafted chitosan.
As a specific embodiment, the preparation method of the hyperbranched polyamide grafted chitosan comprises the following steps: the vessel was purged with nitrogen at least 5 times under ice bath conditions, and 5.2mL of diethylenetriamine was added to the vessel under nitrogen protection, followed by slowly dropping 4.3mL of a methanol solution of methyl acrylate (20 mL); reacting for 5h at normal temperature under nitrogen atmosphere, decompressing by a rotary evaporator to remove methanol, decompressing and heating to 160 ℃, and reacting for 5h to obtain the hyperbranched polyamidoamine. Weighing 2.5g of chitosan, adding the chitosan into 150mL of distilled water, stirring the chitosan uniformly, then slowly dropwise adding an aqueous solution dissolved with 0.1mL of glutaraldehyde, carrying out heat preservation reaction for 1h, dropwise adding an aqueous solution containing about 4g of hyperbranched polyamidoamine, heating the mixture for reaction, washing the obtained solid with distilled water and absolute ethyl alcohol, and carrying out vacuum drying at the temperature of 45 ℃.
The lignin quaternary ammonium salt of the present invention is produced by the method described in "synthesis of lignin quaternary ammonium salt surfactant, wangxhong, 2012, 10-13".
Example 1
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 10 parts of hyperbranched polyamide grafted chitosan, 5 parts of amino acid, 3 parts of plant extract, 3 parts of lignin quaternary ammonium salt and 90 parts of water; the amino acid comprises glycine and lysine, and the weight ratio of the glycine to the lysine is 2: 1; the plant extract comprises a hairyvein agrimony extract and a schefflera octophylla extract, and the weight ratio of the two extracts is 3: 2. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 40 ℃, adding lignin quaternary ammonium salt, stirring for 40min, cooling to 25 ℃, sequentially adding amino acid and plant extract, and stirring for 1 h.
Example 2
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 5 parts of hyperbranched polyamide grafted chitosan, 5 parts of amino acid, 3 parts of plant extract, 2 parts of lignin quaternary ammonium salt and 50 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:4: 4; the plant extract comprises a hairyvein agrimony extract and a schefflera octophylla extract, and the weight ratio of the two extracts is 1: 1. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 35 ℃, adding lignin quaternary ammonium salt, stirring for 50min, cooling to 25 ℃, sequentially adding amino acid and plant extract, and stirring for 0.5 h.
Example 3
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 8 parts of hyperbranched polyamide grafted chitosan, 5 parts of amino acid, 2 parts of plant extract, 1 part of lignin quaternary ammonium salt and 60 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:3: 2; the plant extract comprises a hairyvein agrimony extract, a schefflera octophylla extract, a gerbera jamesonii extract and a wormwood extract in a weight ratio of 1:1:8: 5. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 40 ℃, adding lignin quaternary ammonium salt, stirring for 60min, cooling to 25 ℃, sequentially adding amino acid and plant extract, and stirring for 1.5 h.
Example 4
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 6 parts of hyperbranched polyamide grafted chitosan, 2.5 parts of amino acid, 5 parts of plant extract, 2 parts of lignin quaternary ammonium salt and 80 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:3: 2; the plant extract comprises a hairyvein agrimony extract, a schefflera arboricola extract and a wormwood extract, and the weight ratio is 3:2:2: 1. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 35 ℃, adding lignin quaternary ammonium salt, stirring for 40min, cooling to 25 ℃, sequentially adding amino acid and plant extract, and stirring for 1 h.
Example 5
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 10 parts of hyperbranched polyamide grafted chitosan, 5 parts of amino acid, 4 parts of plant extract, 3 parts of lignin quaternary ammonium salt and 90 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:3: 2; the plant extract comprises a hairyvein agrimony extract, a schefflera octophylla extract, a gerbera jamesonii extract and a wormwood extract, and the weight ratio of the plant raw materials is 1:3:1: 1. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 40 ℃, adding lignin quaternary ammonium salt, stirring for 40min, cooling to 25 ℃, sequentially adding amino acid and plant extract, and stirring for 1 h.
The plant extract is prepared by the following method: mixing fresh and clean plant materials, putting into a distillation device, adding water 2 times of the weight of the plant materials into the distillation device, heating and distilling under the pressure of 0.3-0.5MPa to about 100 deg.C, reducing pressure to 0.1MPa and the temperature of 50-60 deg.C, distilling for 4h, and collecting water vapor containing plant active components.
Example 6
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 5 parts of hyperbranched polyamide grafted chitosan, 5 parts of amino acid, 5 parts of plant extract, 2 parts of lignin quaternary ammonium salt and 50 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:4: 4; the plant extract contains a hairyvein agrimony extract, a schefflera octophylla extract, an gerbera jamesonii extract, an artemisia argyi extract, an aloe extract, a moso bamboo extract, a monstera deliciosa extract and a dandelion extract, and the weight ratio of the plant materials is 3:2:2:1:1:5:1: 1. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water, heating to 35 ℃, adding lignin quaternary ammonium salt, stirring for 50min, cooling to 25 ℃, sequentially adding amino acid and plant extract, and stirring for 0.5 h.
The plant extract is prepared by the following method: mixing fresh and clean plant materials, putting into a distillation device, adding 4 times of water into the distillation device, heating and distilling under the pressure of 0.3-0.5MPa to about 100 deg.C, reducing pressure to 0.1MPa and the temperature of 50-60 deg.C, distilling for 4 hr, and collecting water vapor containing plant active components.
Comparative example 1
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 5 parts of amino acid, 5 parts of plant extract, 1 part of lignin quaternary ammonium salt and 50 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:3: 2; the plant extract comprises a hairyvein agrimony extract, a schefflera arboricola extract and a wormwood extract, and the weight ratio is 3:2:2: 1. The preparation method comprises the following steps: heating water to 35 deg.C, adding lignin quaternary ammonium salt, stirring for 30 deg.C, cooling to 25 deg.C, sequentially adding amino acids and plant extractive solution, and stirring for 1 hr.
Comparative example 2
The formaldehyde scavenger of the embodiment comprises the following components in parts by weight: 5 parts of hyperbranched polyamide grafted chitosan, 5 parts of amino acid, 3 parts of plant extract and 50-90 parts of water; the amino acid comprises glycine, lysine and proline in a weight ratio of 5:3: 2; the plant extract comprises a hairyvein agrimony extract, a schefflera arboricola extract and a wormwood extract, and the weight ratio is 3:2:2: 1. The preparation method comprises the following steps: adding hyperbranched polyamide grafted chitosan into water at 25 ℃, stirring for 30min, sequentially adding amino acid and plant extract, and stirring for 1 h.
Test examples
10g of the formaldehyde purifiers obtained in examples 1 to 6, comparative examples 1 to 2, and the preparation were respectively brushed or sprayed on 1m3On the adhesive substance (such as paper sheet or organic glass sample plate with A4 size) in the sealed container, 0.5 μ L of formaldehyde solution was injected into the sealed container by means of a microsyringe, and a blank control group was set without spraying formaldehyde scavenger and without injecting formaldehyde, and the change in the concentration of formaldehyde in the sealed container was detected after 24 hours and 48 hours. The formaldehyde concentration is measured by phenol reagent spectrophotometry according to the national standard method, and the formaldehyde removal rate w ═ Cn-Cw)/(C0-Cw0) 100% of C, whereinnConcentration of formaldehyde after reaction for examples or comparative examples, C0Starting concentration of Formaldehyde for example or comparative example, CwFormaldehyde concentration after reaction for blank control group, Cw0Is the initial concentration of formaldehyde for the blank. Repeat 3 for each example and average. The results obtained are shown in Table 1.
TABLE 1 Formaldehyde purification Capacity statistics
As can be seen from the above table, the formaldehyde scavenger of the present invention can purify formaldehyde effectively and rapidly. The formaldehyde purifying agent can be coated on the surface of a material to be treated by adopting a rolling coating, spraying, sprinkling or brushing method, so that indoor free formaldehyde is effectively captured, and no secondary pollution is caused.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The formaldehyde purifying agent is characterized in that raw materials for preparing the formaldehyde purifying agent comprise the following components in parts by weight: 2-10 parts of hyperbranched polyamide grafted chitosan, 1-5 parts of amino acid, 1-5 parts of plant extract, 1-5 parts of lignin quaternary ammonium salt and 50-90 parts of water.
2. The formaldehyde scavenger according to claim 1, wherein the raw materials for preparing the formaldehyde scavenger comprise the following components in parts by weight: 5-10 parts of hyperbranched polyamide grafted chitosan, 2.5-5 parts of amino acid, 3-5 parts of plant extract, 1-5 parts of lignin quaternary ammonium salt and 60-80 parts of water.
3. The formaldehyde scavenger according to claim 1, wherein the hyperbranched polyamide-grafted chitosan is prepared by the following method: under the condition of ice-water bath, dropwise adding a methanol solution of methyl acrylate into diethylenetriamine, then reacting for 3-6h at 20-30 ℃ in a protective gas atmosphere, removing the solvent, and heating to 140-160 ℃ under reduced pressure for reacting for 3-5h to obtain hyperbranched polyamidoamine; dissolving chitosan in water, dropwise adding a glutaraldehyde solution and a hyperbranched polyamidoamine aqueous solution into the water, heating for reaction, washing the obtained solid, and drying to obtain the hyperbranched polyamide grafted chitosan.
4. The formaldehyde scavenger according to claim 1, wherein the amino acid is at least two of glycine, lysine, arginine, proline.
5. The formaldehyde scavenger according to claim 4, wherein the amino acid is a mixture of glycine, lysine and proline in a weight ratio of 5-10:3-8: 2-8.
6. The formaldehyde scavenger according to claim 1, wherein the plant extract comprises one or more of rhinacanthus nasutus extract, schefflera octophylla extract, gerbera extract, aloe extract, phyllostachys pubescens extract, monstera deliciosa extract, and dandelion extract.
7. The formaldehyde scavenger as claimed in claim 6, wherein the Rhinacanthus nasutus extract is 30-70% ethanol extract of Rhinacanthus nasutus, and the content of active ingredients is 15-20%; the said Caralluma extract is 30-50% ethanol extract of Caralluma, the active ingredient content is 15-20%; the gerbera jamesonii extract is a water extract of gerbera jamesonii, and the content of active ingredients is 10-15%; the folium Artemisiae Argyi extract is 30-50% ethanol extract, and the content of active ingredient is 15-20%; the aloe extract is 40-60% ethanol extract of aloe leaf, and the content of active ingredients is 15-20%; the moso bamboo extract is low-temperature reduced pressure distillation extract of moso bamboo, and the content of active ingredients is 10-15%; the monstera deliciosa extract is a water extract of monstera deliciosa, and the active ingredient is 10-15%; the herba Taraxaci extract is water extract of herba Taraxaci, and active ingredient is 10-15%.
8. The formaldehyde scavenger according to claim 6, wherein the plant extract is prepared by the following method: mixing fresh and clean plant raw materials, putting into a distillation device, adding water 1-5 times of the weight of the plant raw materials into the distillation device, heating and distilling under the pressure of 0.3-0.5MPa to 95-100 ℃, reducing the pressure to 0.1MPa, distilling at the temperature of 50-60 ℃ for 2-4h, collecting water vapor containing plant active ingredients, and condensing.
9. A method for producing the formaldehyde scavenger according to any one of claims 1 to 8, characterized by comprising the steps of: adding hyperbranched polyamide grafted chitosan into water, heating to 20-40 deg.C, adding lignin quaternary ammonium salt, stirring for 30-60min, cooling to 20-30 deg.C, sequentially adding amino acid and plant extractive solution, and stirring for 0.5-1.5 h.
10. Use of a formaldehyde scavenger according to any one of claims 1 to 8 for the purification of formaldehyde in a room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397254.0A CN111001286A (en) | 2019-12-30 | 2019-12-30 | Formaldehyde purifying agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397254.0A CN111001286A (en) | 2019-12-30 | 2019-12-30 | Formaldehyde purifying agent and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111001286A true CN111001286A (en) | 2020-04-14 |
Family
ID=70119430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397254.0A Pending CN111001286A (en) | 2019-12-30 | 2019-12-30 | Formaldehyde purifying agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111001286A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751944A (en) * | 2014-01-26 | 2014-04-30 | 河北工程大学 | Formaldehyde scavenger and preparation method thereof |
| CN105964227A (en) * | 2016-05-06 | 2016-09-28 | 福州大学 | Hyperbranched polyamide-grafted chitosan adsorbent and its preparation method and use |
| CN108077309A (en) * | 2017-12-18 | 2018-05-29 | 苏州纳贝通环境科技有限公司 | A kind of air purification and sterilizing material and preparation method thereof |
| CN109261130A (en) * | 2017-07-17 | 2019-01-25 | 南京工业大学 | A kind of Hyperbranched Polymer with Terminal Amido grafted chitosan microballoon formaldehyde adsorbent and preparation method thereof |
-
2019
- 2019-12-30 CN CN201911397254.0A patent/CN111001286A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103751944A (en) * | 2014-01-26 | 2014-04-30 | 河北工程大学 | Formaldehyde scavenger and preparation method thereof |
| CN105964227A (en) * | 2016-05-06 | 2016-09-28 | 福州大学 | Hyperbranched polyamide-grafted chitosan adsorbent and its preparation method and use |
| CN109261130A (en) * | 2017-07-17 | 2019-01-25 | 南京工业大学 | A kind of Hyperbranched Polymer with Terminal Amido grafted chitosan microballoon formaldehyde adsorbent and preparation method thereof |
| CN108077309A (en) * | 2017-12-18 | 2018-05-29 | 苏州纳贝通环境科技有限公司 | A kind of air purification and sterilizing material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 魏清培: "《常用小化工产品生产指南（二）》", 28 February 2005, 广东科技出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106310906B (en) | A kind of room air eliminating smell agent and preparation method thereof having both sterilizing function | |
| CN108850006B (en) | Quick-acting composite deodorant and preparation method thereof | |
| CN110327763A (en) | Environmentally-frieindoor indoor air cleanser | |
| CN101279237A (en) | Purificant for adsorbing formaldehyde and method of preparing the same | |
| CN103751944A (en) | Formaldehyde scavenger and preparation method thereof | |
| CN101279236A (en) | Purificant for adsorbing ammonia gas and method of preparing the same | |
| CN104910866A (en) | Novel spraying agent for reducing indoor haze, and application thereof | |
| CN103752157A (en) | Catching agent of benzene series compounds and preparation method thereof | |
| CN110951303A (en) | Plant antibacterial water paint capable of decomposing formaldehyde and releasing negative ions | |
| CN107261817A (en) | Product purified the air of a room that a kind of pure plant is extracted and preparation method thereof | |
| CN108160030A (en) | A kind of modification infusorial earth smell-removing material and preparation method thereof | |
| CN111773605A (en) | Formaldehyde scavenging agent | |
| CN103120892A (en) | Method for purifying air by using extract obtained from tea | |
| CN106362576A (en) | Plant compound air purifying agent and preparation method thereof | |
| CN104474739A (en) | Application of molecular sieve adsorption material in removing of traditional Chinese medicine heavy metal | |
| CN110465173A (en) | It is a kind of efficiently to remove formaldehyde air cleaning spray | |
| CN111001286A (en) | Formaldehyde purifying agent and preparation method and application thereof | |
| CN1468916A (en) | New use of plant polyphenol compound | |
| CN109173644A (en) | One Plant Extracts are except formaldehyde formulations and preparation method thereof | |
| CN108854424A (en) | A kind of composition capable of purifying air | |
| CN109745856A (en) | It is a kind of for eliminating the spray of pollutants in air | |
| CN104857843A (en) | Biological enzyme air purifying agent, preparation method and application thereof | |
| CN100391838C (en) | Active bamboo carbon for air purification | |
| CN114028932A (en) | Formula of air purifying agent for removing formaldehyde indoors | |
| CN113144866A (en) | Environment-friendly formaldehyde scavenger and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |