CN109794151A - Methanal trapping agent is spraying and preparation method thereof - Google Patents
Methanal trapping agent is spraying and preparation method thereof Download PDFInfo
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- CN109794151A CN109794151A CN201910154734.8A CN201910154734A CN109794151A CN 109794151 A CN109794151 A CN 109794151A CN 201910154734 A CN201910154734 A CN 201910154734A CN 109794151 A CN109794151 A CN 109794151A
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Abstract
It is spraying and preparation method thereof this application discloses a kind of methanal trapping agent.The methanal trapping agent is spraying, the raw material components including following parts by weight: 30-50 parts of aloe extract, 30-50 parts of Folium Ipomoea extract, 0.05-0.1 parts of hydrolytic reagent, 10-20 parts of dispersing agent and 100-120 parts of deionized water.The application gives the spraying preparation method of above-mentioned methanal trapping agent.It is affected by environment big present application addresses purification efficiency existing for existing purifying formaldehyde method is low, the technical issues of be easy to causeing secondary pollution.
Description
Technical field
It is spraying and preparation method thereof in particular to a kind of methanal trapping agent this application involves formaldehyde technical field is removed.
Background technique
In recent years, as living standards of the people are gradually increased, air pollution problem inside rooms become increasingly conspicuous, and cause social each
The common concern on boundary.Formaldehyde as one of main indoor air pollutants can enter people by respiratory system and skin
Body has potential, universal, long-term harm to human body.Therefore, the purification of formaldehyde in indoor air has important meaning
Justice.Formaldehyde in air is in indoor hardware fitting with continuous, slow way mainly by being released indoors, and indoors
Constantly tired collection, causes indoor formaldehyde concentration exceeded.Therefore, the purification method of formaldehyde needs in the range of long-time effectively.
The purification method of formaldehyde specifically includes that absorption method, chemical absorption method, photocatalyst method, plant absorption method and leads at present
Wind method.Wherein, absorption method often has complicated hole and huge specific surface area with active carbon, molecular sieve, active mine crystalline substance etc.
Adsorbent, achieve the purpose that remove formaldehyde, peculiar smell etc. using its special physical structure, this method efficiency is lower, need to determine
Phase replaces operating cost height, and absorption is reversible, is also easy to produce secondary pollution；Chemical absorption method is chemically reacted using with formaldehyde
Substance handles formaldehyde, such as amido, hydroxyl and active hydrogen, this method cause the substance after reacting with formaldehyde to be difficult to recycle benefit
With being likely to result in secondary pollution；Photocatalyst method be use titanium dioxide as catalyst at room temperature and pressure, and
Under the irradiation of ultraviolet light, the property of will volatilize oxidation operation is finally purified room air at carbon dioxide and water, this side
That there are solar energy utilization ratios is low for method, and efficiency is affected by ambient humidity, temperature etc., and catalyst activity is high, easy in inactivation, fixation
Change, at high price be difficult to universal defect；Plant absorption method is to utilize bracketplant, sansevieria trifasciata, ivy, aloe, epipremnum aureum, Qiu Hai
The method that Chinese bush cherry, dayflower etc. absorb indoor section pernicious gas, in this way when temperature is higher than 19 DEG C, formaldehyde volatilization speed
Degree is just more than the infiltration rate of green plants, and so concentration of formaldehyde will be higher and higher, and plant absorption range very little,
With certain limitation；Ventilation method is the circulation by room air, the content of harmful substance in room air is reduced, to subtract
For few substance of this kind to the method for the harm of human body, the time of this method removal formaldehyde is long, generally takes 3 years or more.
For the above problem in the prior art, currently no effective solution has been proposed.
Summary of the invention
It is spraying and preparation method thereof that the main purpose of the application is to provide a kind of methanal trapping agent, to solve existing first
The technical issues of purification efficiency existing for aldehyde purification method is low, affected by environment big, be easy to cause secondary pollution.
To achieve the goals above, according to the one aspect of the application, it is spraying to provide a kind of methanal trapping agent.
It by spraying include the raw material components of following parts by weight: 30-50 parts of reed according to methanal trapping agent described herein
Luxuriant growth extract, 30-50 parts of Folium Ipomoea extract, 0.05-0.1 parts of hydrolytic reagent, 10-20 parts of dispersing agent and 100-120
The deionized water of part.
Further, the raw material components including following parts by weight: 40 parts of aloe extract, 40 parts of sweet potato leaves are extracted
Object, 0.08 part of hydrolytic reagent, 15 parts of dispersing agent and 110 parts of deionized water.
Further, the hydrolytic reagent selects acid or hydrolase.
Further, the acid is hydrochloric acid, formic acid or citric acid, and the hydrolase is acid protease or neutral protein
Enzyme.
Further, the preparation method of the aloe extract is the following steps are included: clean peeling, addition 3-5 for aloe
The deionized water of amount again, impregnates 2-3h at room temperature；Aloe after immersion is ultrasonically treated 1-3h at 30-40 DEG C, after filtering
To extracting solution；The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 18000-20000r/min；By from
The extracting solution via hole diameter of the heart is that 0.1~0.22 μm of filter membrane is filtered, and filter pressure is maintained at 0.4~0.5MPa, obtains
Extract solution from aloe；By drying, crushing after extract solution from aloe vacuum concentration, the aloe extract is obtained.
Further, the condition of the vacuum concentration are as follows: holding vacuum degree be -0.06~-0.065MPa, temperature be 50~
60 DEG C, being concentrated into specific gravity is 1~1.2.
Further, the preparation method of the Folium Ipomoea extract is the following steps are included: immerse 3 times after sweet potato leaves are crushed
In 70% ethyl alcohol of amount, soak at room temperature 10-12 hours；It is distilled after filter residue, obtains sweet potato leaf extract；By the sweet potato
Drying, crushing, obtain the Folium Ipomoea extract after leaf extract vacuum concentration.
To achieve the goals above, according to further aspect of the application, it is spraying to provide a kind of above-mentioned methanal trapping agent
Preparation method.
According to the spraying preparation method of methanal trapping agent described herein, comprising the following steps: take 30-50 parts of aloe
Extract, 30-50 parts of Folium Ipomoea extract, 0.05-0.1 parts of dispersing agent and 40-50 parts of deionized water is uniformly mixed, and is obtained
To composition A；Hydrolytic reagent is added into composition A in proportion, 60-70 parts of deionized water is added after hydrolyzing completely, mixing is equal
Bottling after even, it is spraying to obtain the methanal trapping agent.
Further, when the hydrolytic reagent select acid when, hydrolysising condition are as follows: pH be 3.0-3.5, temperature be 80-100 DEG C
Under conditions of hydrolyze 10-12h.
Further, when the hydrolytic reagent selects hydrolase, hydrolysising condition are as follows: in pH be 3.5-4, reaction temperature is
5-6h is hydrolyzed under conditions of 20-30 DEG C.
In the embodiment of the present application, it uses in such a way that aloe extract and Folium Ipomoea extract is primary raw materials, passes through
Hydrolysis of the hydrolytic reagent to aloe extract and Folium Ipomoea extract, reached obtain it is a kind of comprising a variety of amino acid, polypeptide, glucoside
Colourless, tasteless, the transparent aqueous solution of class, polyphenol and Flavonoid substances, and it is made into spraying purpose, by aqueous solution
The above-mentioned substance for including irreversibly is combined with formaldehyde, to realize, purifying formaldehyde rate is high, purification rate is fast, not will cause two
Secondary pollution, the stable technical effect of clean-up effect, and then it is low to solve purification efficiency existing for existing purifying formaldehyde method, by
The technical issues of environment influence is big, be easy to cause secondary pollution.Applicant carried out a large amount of creative works, test a large amount of plants
Object extract, finally found that is had significantly using aloe extract and Folium Ipomoea extract compatibility except aldehyde effect, and aloe is mentioned
After taking object and Folium Ipomoea extract to hydrolyze, a variety of amino acid, polypeptide, glucoside, polyphenol and Flavonoid substances are generated, a kind of nothing is obtained
Color, tasteless, transparent aqueous solution quickly can occur nucleophilic addition with formaldehyde, generate stable innocuous substance, will not
Secondary pollution is caused, except aldehyde effect is prominent, provides a kind of completely new methanal trapping agent spray product for purifying formaldehyde.The formaldehyde is caught
Obtaining the spraying application method of agent is directly to be sprayed to space to be clean or direct spraying to be able to achieve good except aldehyde surface
Good removes aldehyde effect.
Specific embodiment
It is right below in conjunction with the embodiment of the present application in order to make those skilled in the art more fully understand application scheme
The technical solution of the application is clearly and completely described, it is clear that described embodiment is only the reality of the application a part
Example is applied, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creation
Property labour under the premise of every other embodiment obtained, shall fall within the protection scope of the present application.
It should be noted that the term " includes " in the description and claims of this application, it is intended that covering is not
Exclusive includes, for example, the method for containing series of steps those of is not necessarily limited to be clearly listed step, but may include
Other steps being not clearly listed or intrinsic for these methods.In the absence of conflict, the implementation in the application
Feature in example and embodiment can be combined with each other.The application is described in detail below with reference to embodiment.
Embodiment 1
A kind of methanal trapping agent is spraying, the raw material components including following parts by weight: 30 parts of aloe extract, 30 parts
Folium Ipomoea extract, 0.05 part of hydrochloric acid, 10 parts of dispersing agent and 100 parts of deionized water.
The spraying preparation method of above-mentioned methanal trapping agent, comprising the following steps:
Take 30 parts of aloe extract, 30 parts of Folium Ipomoea extract, 10 parts of dispersing agent and 40 parts of deionized water mixed
It closes uniformly, obtains composition A；
0.05 part of hydrochloric acid is added into composition A, is 3.0 in pH, temperature hydrolyzes 10h under conditions of being 80 DEG C, hydrolyzes
60 parts of deionized water is added after completely, bottles after mixing, it is spraying to obtain the methanal trapping agent.
Wherein, the aloe extract preparation method the following steps are included:
Aloe is cleaned into peeling, the deionized water of 3 times of amounts is added, impregnates 2h at room temperature；
Aloe after immersion is ultrasonically treated 1h at 30 DEG C, obtains extracting solution after filtering；
The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 18000r/min；
The filter membrane that extracting solution via hole diameter by centrifugation is 0.1 μm is filtered, and filter pressure is maintained at 0.4MPa, obtains
To extract solution from aloe；
The extract solution from aloe is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.06MPa, and temperature is
50 DEG C, being concentrated into specific gravity is 1；
It dried after vacuum concentration, be crushed to 800 mesh, obtain the aloe extract.
The preparation method of the Folium Ipomoea extract the following steps are included:
It is immersed after sweet potato leaves are crushed in 70% ethyl alcohol of 3 times of amounts, soak at room temperature 10 hours；
It is distilled after filter residue, obtains sweet potato leaf extract；
The sweet potato leaf extract is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.07MPa, temperature
It is 50 DEG C, being concentrated into specific gravity is 1；
It dried after vacuum concentration, be crushed to 800 mesh, obtain the Folium Ipomoea extract.
Embodiment 2
A kind of methanal trapping agent is spraying, the raw material components including following parts by weight: 50 parts of aloe extract, 50 parts
Folium Ipomoea extract, 0.1 part of formic acid, 20 parts of dispersing agent and 120 parts of deionized water.
The spraying preparation method of above-mentioned methanal trapping agent, comprising the following steps:
Take 50 parts of aloe extract, 50 parts of Folium Ipomoea extract, 20 parts of dispersing agent and 50 parts of deionized water mixed
It closes uniformly, obtains composition A；
0.1 part of formic acid is added into composition A in proportion, is 3.5 in pH, temperature hydrolyzes under conditions of being 100 DEG C
12h is added 70 parts of deionized water, bottles after mixing, it is spraying to obtain the methanal trapping agent after hydrolyzing completely.
Wherein, the aloe extract preparation method the following steps are included:
Aloe is cleaned into peeling, the deionized water of 5 times of amounts is added, impregnates 3h at room temperature；
Aloe after immersion is ultrasonically treated 3h at 40 DEG C, obtains extracting solution after filtering；
The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 20000r/min；
The filter membrane that extracting solution via hole diameter by centrifugation is 0.22 μm is filtered, and filter pressure is maintained at 0.5MPa,
Obtain extract solution from aloe；
The extract solution from aloe is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.065MPa, temperature
It is 60 DEG C, being concentrated into specific gravity is 1.2；
It dried after vacuum concentration, be crushed to 1000 mesh, obtain the aloe extract.
The preparation method of the Folium Ipomoea extract the following steps are included:
It is immersed after sweet potato leaves are crushed in 70% ethyl alcohol of 3 times of amounts, soak at room temperature 12 hours；
It is distilled after filter residue, obtains sweet potato leaf extract；
The sweet potato leaf extract is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.075MPa, temperature
Degree is 60 DEG C, and being concentrated into specific gravity is 1.2；
It dried after vacuum concentration, be crushed to 1000 mesh, obtain the Folium Ipomoea extract.
Embodiment 3
A kind of methanal trapping agent is spraying, the raw material components including following parts by weight: 40 parts of aloe extract, 40 parts
Folium Ipomoea extract, 0.08 part of citric acid, 15 parts of dispersing agent and 115 parts of deionized water.
The spraying preparation method of above-mentioned methanal trapping agent, comprising the following steps:
Take 40 parts of aloe extract, 40 parts of Folium Ipomoea extract, 15 parts of dispersing agent and 50 parts of deionized water mixed
It closes uniformly, obtains composition A；
0.08 part of citric acid is added into composition A, is 3.2 in pH, 11h, water is hydrolyzed under the conditions of at a temperature of 90 °C
Solution is added completely into 65 parts of deionized water, bottles after mixing, and it is spraying to obtain the methanal trapping agent.
Wherein, the aloe extract preparation method the following steps are included:
Aloe is cleaned into peeling, the deionized water of 4 times of amounts is added, impregnates 3h at room temperature；
Aloe after immersion is ultrasonically treated 2h at 35 DEG C, obtains extracting solution after filtering；
The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 19000r/min；
The filter membrane that extracting solution via hole diameter by centrifugation is 0.1 μm is filtered, and filter pressure is maintained at 0.5MPa, obtains
To extract solution from aloe；
The extract solution from aloe is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.06MPa, and temperature is
55 DEG C, being concentrated into specific gravity is 1.1；
It dried after vacuum concentration, be crushed to 900 mesh, obtain the aloe extract.
The preparation method of the Folium Ipomoea extract the following steps are included:
It is immersed after sweet potato leaves are crushed in 70% ethyl alcohol of 3 times of amounts, soak at room temperature 11 hours；
It is distilled after filter residue, obtains sweet potato leaf extract；
The sweet potato leaf extract is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.075MPa, temperature
Degree is 55 DEG C, and being concentrated into specific gravity is 1.1；
It dried after vacuum concentration, be crushed to 900 mesh, obtain the Folium Ipomoea extract.
Embodiment 4
A kind of methanal trapping agent is spraying, the raw material components including following parts by weight: 40 parts of aloe extract, 50 parts
Folium Ipomoea extract, 0.08 part of acid protease, 12 parts of dispersing agent and 105 parts of deionized water.
The spraying preparation method of above-mentioned methanal trapping agent, comprising the following steps:
Take 40 parts of aloe extract, 50 parts of Folium Ipomoea extract, 12 parts of dispersing agent and 45 parts of deionized water mixed
It closes uniformly, obtains composition A；
0.08 part of acid protease is added into composition A, is 3.5 in pH, reaction temperature is water under conditions of 20 DEG C
5h is solved, 60 parts of deionized water is added after hydrolyzing completely, bottles after mixing, it is spraying to obtain the methanal trapping agent.
Wherein, the aloe extract preparation method the following steps are included:
Aloe is cleaned into peeling, the deionized water of 4 times of amounts is added, impregnates 3h at room temperature；
Aloe after immersion is ultrasonically treated 1h at 40 DEG C, obtains extracting solution after filtering；
The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 19000r/min；
The filter membrane that extracting solution via hole diameter by centrifugation is 0.22 μm is filtered, and filter pressure is maintained at 0.4MPa,
Obtain extract solution from aloe；
The extract solution from aloe is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.065MPa, temperature
It is 60 DEG C, being concentrated into specific gravity is 1.2；
It dried after vacuum concentration, be crushed to 900 mesh, obtain the aloe extract.
The preparation method of the Folium Ipomoea extract the following steps are included:
It is immersed after sweet potato leaves are crushed in 70% ethyl alcohol of 3 times of amounts, soak at room temperature 11 hours；
It is distilled after filter residue, obtains sweet potato leaf extract；
The sweet potato leaf extract is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.07MPa, temperature
It is 50 DEG C, being concentrated into specific gravity is 1.2；
It dried after vacuum concentration, be crushed to 1000 mesh, obtain the Folium Ipomoea extract.
Embodiment 5
A kind of methanal trapping agent is spraying, the raw material components including following parts by weight: 50 parts of aloe extract, 30 parts
Folium Ipomoea extract, 0.1 part of neutral proteinase, 10 parts of dispersing agent and 110 parts of deionized water.
The spraying preparation method of above-mentioned methanal trapping agent, comprising the following steps:
Take 50 parts of aloe extract, 30 parts of Folium Ipomoea extract, 10 parts of dispersing agent and 50 parts of deionized water mixed
It closes uniformly, obtains composition A；
0.1 part of neutral proteinase is added into composition A, is 4 in pH, reaction temperature hydrolyzes under conditions of being 25 DEG C
6h is added 60 parts of deionized water, bottles after mixing, it is spraying to obtain the methanal trapping agent after hydrolyzing completely.
Wherein, the aloe extract preparation method the following steps are included:
Aloe is cleaned into peeling, the deionized water of 5 times of amounts is added, impregnates 3h at room temperature；
Aloe after immersion is ultrasonically treated 1h at 35 DEG C, obtains extracting solution after filtering；
The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 19000r/min；
The filter membrane that extracting solution via hole diameter by centrifugation is 0.1 μm is filtered, and filter pressure is maintained at 0.5MPa, obtains
To extract solution from aloe；
The extract solution from aloe is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.065MPa, temperature
It is 55 DEG C, being concentrated into specific gravity is 1.1；
It dried after vacuum concentration, be crushed to 1000 mesh, obtain the aloe extract.
The preparation method of the Folium Ipomoea extract the following steps are included:
It is immersed after sweet potato leaves are crushed in 70% ethyl alcohol of 3 times of amounts, soak at room temperature 10 hours；
It is distilled after filter residue, obtains sweet potato leaf extract；
The sweet potato leaf extract is concentrated in vacuo, the condition of vacuum concentration are as follows: holding vacuum degree is -0.075MPa, temperature
Degree is 55 DEG C, and being concentrated into specific gravity is 1.1；
It dried after vacuum concentration, be crushed to 900 mesh, obtain the Folium Ipomoea extract.
What methanal trapping agent was spraying in 1 embodiment 1 of experimental example removes aldehyde effect detection
One, detection method
1, principle
Formaldehyde in air is reacted with phenol reagent generates piperazine, and piperazine is oxidized to blue-green by ferric ion in an acidic solution
Object is closed, according to shade, colorimetric assay.
2, instrument and equipment
2.1, bubble sampling pipe or porous glass plate sampling pipe；
2.2, atmosphere sampling instrument or sampler when electronics control；
2.3,10mL color-comparison tube；
2.4,722S type visible spectrophotometer.
3. medicine and reagent
3.1, absorbing liquid: weighing 0.1g phenol reagent, adds water constant volume to 100ml.
3.2,1% ammonium ferric sulfate solution: 1.0g ammonium ferric sulfate 0.1, mol/l dissolving with hydrochloric acid is weighed, and is diluted to
100ml。
3.3, the preparation of formaldehyde standard solution: weighing 1.0g, and 40% formaldehyde formulations (analysis is pure) add 79.0g water to dilute,
It is configured to 0.5% formalin.
3.4, experimental solutions: in embodiment 1 methanal trapping agent it is spraying in solution.
Two, detecting step
1,1.0g is measured, 0.5% formalin is respectively charged into 1-5 25ml scale test tube；
2, the experiment of 2.0g, 4.0g, 6.0g, 8.0g are separately added into the 1-4 25ml scale test tube for having measured formaldehyde
Solution shakes up, and placing 30 minutes reacts it sufficiently.
3, absorbing liquid constant volume is added in 1-5 25ml scale test tube respectively to 25ml graduation mark, shakes up, places 1 hour.
4,1% ammonium ferric sulfate 0.4ml is added in 1-5 25ml scale test tube respectively, shakes up, places 15 minutes.
5, reference is made with water in wavelength 630nm, using not plus experimental solutions formalin as standard, with spectrophotometer into
Row detection.
Three, testing result
Testing result is shown in Table 1.
Wherein, formaldehyde and the residual quantity M=M after experimental solution reactions0*(1-A)/A0
In formula, M is the residual mass after formaldehyde and experimental solution reactions；M0For the matter of formaldehyde in 0.5% formalin of 1g
Amount；A0For the absorbance of formaldehyde in 0.5% formalin of 1g；A is remaining formaldehyde extinction after formaldehyde and experimental solution reactions
Degree.
What methanal trapping agent was spraying in 1 embodiment 1 of table removes aldehyde effect detection result
| Scale test tube serial number | 1 | 2 | 3 | 4 | 5 |
| 0.5% formaldehyde (g) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Experimental solutions (g) | 2.0 | 4.0 | 6.0 | 8.0 | / |
| Absorbing liquid (ml) | 22.0 | 20.0 | 18.0 | 16.0 | 24.0 |
| Absorbance | 0.152 | 0.070 | 0.029 | 0.018 | 1.320 |
| It absorbs content of formaldehyde (mg/g) | 44.24 | 23.67 | 16.30 | 12.32 | 0 |
Four, conclusion
The experimental solutions being added into the formalin of 1g 0.5% are more, and formaldehyde absorption amount is more, when to 1g 0.5%
Formalin in when 2g experimental solutions are added, the content that average every gram of experimental solutions absorb formaldehyde is most, is 44.2mg.
What methanal trapping agent was spraying in 2 embodiment 1 to 5 of experimental example removes aldehyde effect detection
It is calculated still according to the method in experimental example 1 and absorbs content of formaldehyde, 2g is added into the formalin of 1g 0.5%
Experimental solutions, experimental solutions select respectively methanal trapping agent in embodiment 1 to 5 it is spraying in solution.Testing result is shown in Table 2.
What methanal trapping agent was spraying in 2 embodiment 1 to 5 of table removes aldehyde effect detection result
It can be seen that when the experimental solutions being added into the formalin of 1g 0.5% in 2g embodiment 1 to 5, average every gram of reality
Testing solution to absorb the content of formaldehyde is 42.68-50.19mg, and the spraying purifying formaldehyde efficiency of the methanal trapping agent in embodiment 5 is most
It is high.
3 embodiment 5 of experimental example the remove aldehyde Contrast on effect spraying with methanal trapping agent in comparative example is tested
One, experimental group
The woodwork plate for taking the same size of 40 pieces of same batch production, is classified as 4 groups, respectively blank group, control group
1, control group 2 and experimental group, every group of each 10 pieces of woodwork plate.Processing mode is as follows:
Experimental group: the methanal trapping agent sprayed in embodiment 5 on woodwork plate is spraying, quantity for spray 30g/m2；
Control group 1: spraying methanal trapping agent on woodwork plate and be sprayed, and prepares in raw material and is extracted using 80 parts of aloe
Object does not use Folium Ipomoea extract, remaining raw material and preparation method are same as Example 5, quantity for spray 30g/m2；
Control group 2: spraying methanal trapping agent on woodwork plate and be sprayed, and prepares in raw material and is extracted using 80 parts of sweet potato leaves
Object does not use aloe extract, remaining raw material and preparation method are same as Example 5, quantity for spray 30g/m2；
Blank group: woodwork plate is not dealt with.
Two, experimental method
Detect control group 1, control group 2, experimental group spray treatment 1 day, 3 respectively using methylene oxide detecting instrument
It, after 7 days relative to the formaldehyde reduction amount of blank group, by experimental group respectively with blank group, control group
1, t detection is carried out between control group 2, is indicated with " means standard deviation ".
Three, experimental result
The data that t is examined are shown in Table 3.
3 the embodiment of the present application 5 of table removes aldehyde effect experiment result
(note:#Compared with control group 1##P < 0.01,#P < 0.05；*Compared with control group 2*P < 0.01,**P < 0.05)
Four, conclusion
From the data in table 3, it using aloe extract and Folium Ipomoea extract compatibility, is mentioned relative to aloe is used alone
For taking object and Folium Ipomoea extract, significantly enhance except aldehyde ability, therefore methanal trapping agent spray formula group provided by the present application
Division reason, is realized unexpected except aldehyde effect by two Plant Extracts compatibilities, can be used in purifying formaldehyde.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of methanal trapping agent is spraying, which is characterized in that the raw material components including following parts by weight: 30-50 parts of aloe
Extract, 30-50 parts of Folium Ipomoea extract, 0.05-0.1 parts of hydrolytic reagent, 10-20 parts of dispersing agent and 100-120 parts
Deionized water.
2. methanal trapping agent according to claim 1 is spraying, which is characterized in that the raw material group including following parts by weight
Point: 40 parts of aloe extract, 40 parts of Folium Ipomoea extract, 0.08 part of hydrolytic reagent, 15 parts of dispersing agent and 110 parts
Deionized water.
3. methanal trapping agent according to claim 1 is spraying, which is characterized in that the hydrolytic reagent selects acid or hydrolase.
4. methanal trapping agent according to claim 3 is spraying, which is characterized in that the acid is hydrochloric acid, formic acid or citric acid,
The hydrolase is acid protease or neutral proteinase.
5. methanal trapping agent according to claim 1 is spraying, which is characterized in that the preparation method packet of the aloe extract
Include following steps:
Aloe is cleaned into peeling, the 3-5 times of deionized water measured is added, impregnates 2-3h at room temperature；
Aloe after immersion is ultrasonically treated 1-3h at 30-40 DEG C, obtains extracting solution after filtering；
The extracting solution is staticly settled, supernatant is taken to be centrifuged 1h under the revolving speed of 18000-20000r/min；
Extracting solution via hole diameter by centrifugation is that 0.1~0.22 μm of filter membrane is filtered, filter pressure is maintained at 0.4~
0.5MPa obtains extract solution from aloe；
By drying, crushing after extract solution from aloe vacuum concentration, the aloe extract is obtained.
6. methanal trapping agent according to claim 5 is spraying, which is characterized in that the condition of the vacuum concentration are as follows: keep
Vacuum degree is -0.06~-0.065MPa, and temperature is 50~60 DEG C, and being concentrated into specific gravity is 1~1.2.
7. methanal trapping agent according to claim 1 is spraying, which is characterized in that the preparation method of the Folium Ipomoea extract
The following steps are included:
It is immersed after sweet potato leaves are crushed in 70% ethyl alcohol of 3 times of amounts, soak at room temperature 10-12 hours；
It is distilled after filter residue, obtains sweet potato leaf extract；
By drying, crushing after sweet potato leaf extract vacuum concentration, the Folium Ipomoea extract is obtained.
8. a kind of preparation method that the described in any item methanal trapping agents of claim 1 to 7 are spraying, which is characterized in that including with
Lower step:
Take 30-50 parts of aloe extract, 30-50 parts of Folium Ipomoea extract, 0.05-0.1 parts dispersing agent and 40-50 parts
Deionized water is uniformly mixed, and obtains composition A；
Hydrolytic reagent is added into composition A in proportion, 60-70 parts of deionized water is added after hydrolyzing completely, fills after mixing
It is spraying to obtain the methanal trapping agent for bottle.
9. the spraying preparation method of methanal trapping agent according to claim 8, which is characterized in that when the hydrolytic reagent is selected
When sour, hydrolysising condition are as follows: pH be 3.0-3.5, temperature be 80-100 DEG C under conditions of hydrolyze 10-12h.
10. the spraying preparation method of methanal trapping agent according to claim 8, which is characterized in that when the hydrolytic reagent selects
When with hydrolase, hydrolysising condition are as follows: pH be 3.5-4, reaction temperature be 20-30 DEG C under conditions of hydrolyze 5-6h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910154734.8A CN109794151A (en) | 2019-03-01 | 2019-03-01 | Methanal trapping agent is spraying and preparation method thereof |
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