CN109406221A - A kind of interior wall removes the detection method of aldehyde lotion - Google Patents
A kind of interior wall removes the detection method of aldehyde lotion Download PDFInfo
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- CN109406221A CN109406221A CN201811089885.1A CN201811089885A CN109406221A CN 109406221 A CN109406221 A CN 109406221A CN 201811089885 A CN201811089885 A CN 201811089885A CN 109406221 A CN109406221 A CN 109406221A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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Abstract
The present invention discloses the detection method that a kind of interior wall removes aldehyde lotion, belong to content of formaldehyde detection technique field, by by it is specific except content of formaldehyde in aldehyde case and blank except in aldehyde case content of formaldehyde compare, obtain it is specific except in aldehyde case content of formaldehyde remove relative to blank the variable quantity of aldehyde case, and then obtain specific except aldehyde case is except aldehyde efficiency and except aldehyde persistence.Using detection method of the invention, template used is small, and brushing amount is few, even if at normal temperature can also be with rapid draing, completion, which obtains result from making sheet to test, only needs 2d, so as to accelerate product development process, and the method for the present invention operating procedure is simple, and cost is relatively low, it is easy to accomplish, the development time of new product is greatly saved, improves work efficiency, reduces the development cost of new product.
Description
Technical field
The present invention relates to the detection methods that a kind of interior wall removes aldehyde lotion, belong to content of formaldehyde detection technique field.
Background technique
Currently, detection interior wall removes aldehyde efficiency except aldehyde lotion, mainly pass through " JC/T 1074-2008 indoor air purification
Function coating material purifying property " and " residential area GB/T 16129-1005 Formaldehyde in Atmosphere health test method is divided light
Degree method " described in method complete.
However, from the making sheet started when testing, drying, sampling, being detected up to entire experiment is completed to using the above method
14-15 days time is needed less, thus affects experiment progress, and the development efficiency of new product is caused to substantially reduce.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides the detection methods that a kind of interior wall removes aldehyde lotion, pass through
Specifically except content of formaldehyde in aldehyde case and blank except aldehyde case content of formaldehyde compares, showing that specific to remove content of formaldehyde in aldehyde case opposite
In the variable quantity of blank case, obtain specific except aldehyde case is except aldehyde efficiency and except aldehyde persistence.
To achieve the goals above, a kind of interior wall that the present invention uses removes the detection method of aldehyde lotion, comprising the following steps:
1) prepare two identical formaldehyde climate compartments, one is used as blank cabin, and one is used as sample chamber；Prepare with a thickness of 8-
The plate glass of 9mm is spare respectively as clad plate；
2) it is 25 ± 3 DEG C in temperature, under conditions of relative humidity is 50 ± 5%, prepared coating is uniformly brushed
On clad plate, brushing amount is 6-8g, then dries 6h, and the clad plate after drying is put into sample chamber, and at 30 ° and solid with bulkhead
It is fixed；Blank cabin is put into the clad plate of non-brushing paint, takes the same manner to place with sample chamber inner coating plate；
3) climate compartment is sealed and is closed the lid using tectorial paper, 0.12g mass fraction is added from injection thieff hatch
For 1% formalin, and thieff hatch is injected with plug, is placed in constant temperature and humidity room；
4) it after for 24 hours, is sampled, is sampled with the gas-collecting pipe and KHC- two-way atmospheric sampling device that 5ml absorbing liquid is housed
Speed is 1L/min, sampling time 5min, obtains sample coatings plate absorbing liquid and blank clad plate absorbing liquid respectively；
5) three test tubes are taken, 2ml blank control absorbing liquid, blank clad plate absorbing liquid, sample coatings plate is injected separately into and inhales
Liquid is received, the potassium hydroxide solution of 1ml 0.5mol/L, -5 mercapto of -3 connection nitrogen of 4- amino of 1ml 0.5% are added in each test tube difference
Base -1,2,4- triazole solution, covers pipe close, gently overturns and shakes up three times, places 20min；
6) 1.5% potassium metaperiodate solution of 0.3ml is then added, shake well places 5min, then with the cuvette of 10mm,
Under the wavelength of 550nm, spectrophotometer, blank testing clad plate absorbing liquid, sample are calibrated by reference of blank control absorbing liquid
The absorbance of product clad plate absorbing liquid, and calculate and remove aldehyde efficiency, the aldehyde efficiency of removing of sample coatings plate is calculated using following formula:
Wherein, Ax is the absorbance of sample coatings plate, and A is the absorbance of blank clad plate.
As an improvement, the absorbing liquid is prepared by following steps: weighing 1g triethanolamine, 0.25g lays particular stress on sulfurous acid
Sodium and 0.25g disodium ethylene diamine tetraacetate are soluble in water and be diluted to 1000ml.
As an improvement, -5 sulfydryl -1,2 of -3 connection nitrogen of 4- amino, 4- triazole is prepared by following steps: being weighed
0.25gAHMT is dissolved in the hydrochloric acid of 0.5mol/L, and is diluted to 50ml.
As an improvement, the 1.5% potassium metaperiodate solution is prepared by following steps: weighing 1.5g potassium metaperiodate and be dissolved in
In 0.2mol/L potassium hydroxide solution, and it is diluted to 100ml, in dissolving by heating on water-bath.
As an improvement, by elastic wool rolling coating brush by prepared coating application on clad plate.
Compared with prior art, the beneficial effects of the present invention are:
1) detection method of the invention is used, template used is small, and brushing amount is few, even if at normal temperature can also fast rapid-curing cutback
Dry, completion, which obtains result from making sheet to test, only needs 2d, and so as to accelerate product development process, and the method for the present invention operates
Step is simple, and cost is relatively low, easy to accomplish, and the development time of new product is greatly saved, improves work efficiency, and reduces new
The development cost of product.
2) detection method of the invention includes sufficiently dry template preparation, template and template testing time and " JC/T
1074-2008 function of purifying indoor air coating material purifying property " and " residential area GB/T 16129-1005 Formaldehyde in Atmosphere
Health test method spectrophotometry " identical step, above-mentioned steps are equivalent to a whole set of construction work in GB except aldehyde test
Therefore sequence can not only be detected fast and accurately using the method for the present invention except aldehyde efficiency and except aldehyde persistence, additionally it is possible to from research and development
On period and experimentation cost, reduction test period and material consumption significantly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in mesoclimate cabin of the present invention；
In figure: 1, formaldehyde climate compartment, 2, clad plate, 3, injection thieff hatch.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is carried out below further detailed
It describes in detail bright.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, it is not limited to this hair
Bright range.
Unless otherwise defined, all technical terms and scientific terms used herein are led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical, and term as used herein in the specification of the present invention is intended merely to retouch
State the purpose of specific embodiment, it is not intended that in the limitation present invention.
A kind of interior wall removes the detection method of aldehyde lotion, comprising the following steps:
1) prepare two identical formaldehyde climate compartments 1, wherein the framework of formaldehyde climate compartment 1 is as shown in Figure 1, its entirety is in vertical
Cube structure, length 43cm, width 24cm are highly 34cm, and being provided in the formaldehyde climate compartment 1 both can be used as injecting
Hole, and the injection thieff hatch 3 as thieff hatch are used as blank cabin for two formaldehyde climate compartment one, and one is used as sample chamber；It is quasi-
The standby plate glass with a thickness of 8-9mm is spare respectively as clad plate 2；
2) it is 25 ± 3 DEG C in temperature, under conditions of relative humidity is 50 ± 5%, prepared coating is uniformly brushed
On clad plate, brushing amount is 6-8g, then dries 6h, and the clad plate after drying is put into sample chamber, and at 30 ° and solid with bulkhead
It is fixed；Blank cabin is put into the clad plate of non-brushing paint, takes the same manner to place with sample chamber inner coating plate；
3) climate compartment is sealed and is closed the lid using tectorial paper, 0.12g mass fraction is added from injection thieff hatch
For 1% formalin, and thieff hatch is injected with plug, is placed in constant temperature and humidity room；
4) it after for 24 hours, is sampled, is sampled with the gas-collecting pipe and KHC- two-way atmospheric sampling device that 5ml absorbing liquid is housed
Speed is 1L/min, sampling time 5min, obtains sample coatings plate absorbing liquid and blank clad plate absorbing liquid respectively；
5) three test tubes are taken, 2ml blank control absorbing liquid, blank clad plate absorbing liquid, sample coatings plate is injected separately into and inhales
Liquid is received, the potassium hydroxide solution of 1ml 0.5mol/L, -5 mercapto of -3 connection nitrogen of 4- amino of 1ml 0.5% are added in each test tube difference
Base -1,2,4- triazole solution, covers pipe close, gently overturns and shakes up three times, places 20min；
6) 1.5% potassium metaperiodate solution of 0.3ml is then added, shake well places 5min, then with the cuvette of 10mm,
Under the wavelength of 550nm, spectrophotometer, blank testing clad plate absorbing liquid, sample are calibrated by reference of blank control absorbing liquid
The absorbance of product clad plate absorbing liquid, and calculate and remove aldehyde efficiency, the aldehyde efficiency of removing of sample coatings plate is calculated using following formula:
Wherein, Ax is the absorbance of sample coatings plate, and A is the absorbance of blank clad plate.
As an improvement, the absorbing liquid is prepared by following steps: weighing 1g triethanolamine, 0.25g lays particular stress on sulfurous acid
Sodium and 0.25g disodium ethylene diamine tetraacetate are soluble in water and be diluted to 1000ml.
As an improvement, -5 sulfydryl -1,2 of -3 connection nitrogen of 4- amino, 4- triazole is prepared by following steps: being weighed
0.25g AHMT (- 5 sulfydryl -1,2 of -3 connection nitrogen of 4- amino, 4- triazole) is dissolved in the hydrochloric acid of 0.5mol/L, and is diluted to
50ml。
As an improvement, the 1.5% potassium metaperiodate solution is prepared by following steps: weighing 1.5g potassium metaperiodate and be dissolved in
In 0.2mol/L potassium hydroxide solution, and it is diluted to 100ml, in dissolving by heating on water-bath.
As an improvement, by elastic wool rolling coating brush by prepared coating application on clad plate.
Embodiment 1
A kind of interior wall removes the detection method of aldehyde lotion, comprising the following steps:
One) preparation of test material
1) 3 climate compartments identical, volume is 35L are taken, one is used as blank cabin, and one is used as sample chamber one,
One is used as sample chamber two；
2) test sample and blank sample；
3) clad plate: the plate glass that the clad plate uses with a thickness of 8-9mm, the pros of a length of 18.7cm of the edges of boards
Shape；
4) KHC- two-way atmospheric sampling device one: it is 1L/min that sample rate, which is arranged, in the sampler；
Two) detecting step
I) it is 25 ± 3 DEG C in temperature, relative humidity is detected under the conditions of being 50 ± 5%:
1) coating sample one and coating sample two are uniformly brushed on clad plate, brushing amount is 7g, is 25 in temperature
± 3 DEG C, relative humidity dry 6h under the conditions of being 50 ± 5%；
2) sufficiently dry clad plate is put into sample chamber, and at 30 ° and fixed with bulkhead；Blank cabin is put into non-brushing sample
The clad plate of product takes the same manner to be placed in blank cabin with sample panel；
3) climate compartment is sealed and is closed the lid using tectorial paper, it is 1% that 0.12g mass fraction is added from thieff hatch
Formalin and with plug thieff hatch, is placed in constant temperature and humidity room；
4) for 24 hours afterwards with gas-collecting pipe and KHC- two-way atmospheric sampling the device sampling that 5ml absorbing liquid is housed, speed 1L/
Min, sampling time 5min；
5) step 4) is repeated, sample coatings plate absorbing liquid and blank clad plate absorbing liquid are acquired to obtain；
6) four test tubes are taken, 2ml blank control absorbing liquid, blank clad plate absorbing liquid, sample coatings plate is injected separately into and inhales
Liquid one, sample coatings plate absorbing liquid two are received, the potassium hydroxide solution of 1ml 0.5mol/L is added in each pipe, 1ml's 0.5%
AHMT solution covers pipe close, gently overturns and shakes up three times, places 20min；1.5% potassium metaperiodate solution of 0.3ml is added, sufficiently
5min is placed in shaking, calibrates light splitting light by reference of blank control absorbing liquid under the wavelength of 550nm with the cuvette of 10mm
Degree meter, blank testing clad plate absorbing liquid, sample coatings plate absorbing liquid one, the absorbance of sample coatings plate absorbing liquid two, and count
It calculates and removes aldehyde efficiency, the aldehyde efficiency of removing of sample coatings plate is
Wherein, AxThe absorbance of sample coatings plate；The absorbance of A blank clad plate；Specific result such as the following table 1.
Each absorbing liquid of table 1 removes aldehyde efficiency
| Blank clad plate absorbing liquid | Sample coatings plate absorbing liquid one | Sample coatings plate absorbing liquid two | |
| Absorbance | 2.2231 | 0.2872 | 0.0289 |
| Except aldehyde efficiency | 86.08% | 98.57% |
II) sample removes aldehyde persistence
A) saturation experiments: repeat above-mentioned detecting step 1), step 2), formaldehyde is added on time referring to step 3) daily, persistently
4d；
B) 5d takes out the complete sample coatings plate of saturation experiments, is 25 ± 3 DEG C in temperature, relative humidity is 50 ± 5%
Under the conditions of place for 24 hours, then carried out according to step 2)-step 6), obtain it except aldehyde persistence, as a result such as table 2.
Each absorbing liquid of table 2 removes aldehyde persistence
Using detection method of the invention, template used is small, and brushing amount needed for coating is few, even if at normal temperature can also be fast
Rapid-curing cutback is dry, and completion, which obtains result from making sheet to test, only needs 2d, so as to accelerate product development process, and the method for the present invention
Operating procedure is simple, and cost is relatively low, easy to accomplish, and the development time of new product is greatly saved, improves work efficiency, and reduces
The development cost of new product.
Detection method of the invention includes sufficiently dry template preparation, template and template testing time and " JC/T 1074-
2008 function of purifying indoor air coating material purifying properties " and " residential area GB/T 16129-1005 Formaldehyde in Atmosphere health inspection
Test standard method spectrophotometry " identical step, above-mentioned steps, which are equivalent to, removes a whole set of working procedure of aldehyde test in GB, because
This, can not only fast and accurately be detected except aldehyde efficiency and except aldehyde persistence using the method for the present invention, additionally it is possible to from the R&D cycle
In experimentation cost, reduction test period and material consumption significantly.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. the detection method that a kind of interior wall removes aldehyde lotion, which comprises the following steps:
1) prepare two identical formaldehyde climate compartments, one is used as blank cabin, and one is used as sample chamber；Prepare with a thickness of 8-9mm
Plate glass as clad plate, it is spare respectively；
2) it is 25 ± 3 DEG C in temperature, under conditions of relative humidity is 50 ± 5%, prepared coating is uniformly brushed and is being applied
On laminate, brushing amount is 6-8g, then dries 6h, and the clad plate after drying is put into sample chamber, and at 30 ° and fixed with bulkhead；
Blank cabin is put into the clad plate of non-brushing paint, takes the same manner to place with sample chamber inner coating plate；
3) climate compartment is sealed and is closed the lid using tectorial paper, it is 1% that 0.12g mass fraction is added from injection thieff hatch
Formalin, and with plug inject thieff hatch, be placed in constant temperature and humidity room；
4) it after for 24 hours, is sampled with the gas-collecting pipe and KHC- two-way atmospheric sampling device that 5ml absorbing liquid is housed, sample rate
For 1L/min, sampling time 5min, sample coatings plate absorbing liquid and blank clad plate absorbing liquid are obtained respectively；
5) three test tubes are taken, 2ml blank control absorbing liquid, blank clad plate absorbing liquid, sample coatings plate absorbing liquid are injected separately into,
The potassium hydroxide solution of addition 1ml 0.5mol/L in each test tube difference, -5 sulfydryl -1,2 of -3 connection nitrogen of 4- amino of 1ml 0.5%,
4- triazole solution, covers pipe close, gently overturns and shakes up three times, places 20min；
6) 1.5% potassium metaperiodate solution of 0.3ml is then added, shake well places 5min, then with the cuvette of 10mm,
Under the wavelength of 550nm, spectrophotometer, blank testing clad plate absorbing liquid, sample are calibrated by reference of blank control absorbing liquid
The absorbance of clad plate absorbing liquid, and calculate and remove aldehyde efficiency, the aldehyde efficiency of removing of sample coatings plate is calculated using following formula:
Wherein, Ax is the absorbance of sample coatings plate, and A is the absorbance of blank clad plate.
2. the detection method that a kind of interior wall according to claim 1 removes aldehyde lotion, which is characterized in that the absorbing liquid is logical
It crosses following steps preparation: weighing 1g triethanolamine, 0.25g Sodium Metabisulfite and 0.25g disodium ethylene diamine tetraacetate are dissolved in water
In and be diluted to 1000ml.
3. the detection method that a kind of interior wall according to claim 1 removes aldehyde lotion, which is characterized in that the 4- amino -3
Join -5 sulfydryl -1,2 of nitrogen, 4- triazole is prepared by following steps: weighing 0.25gAHMT and be dissolved in the hydrochloric acid of 0.5mol/L,
And it is diluted to 50ml.
4. the detection method that a kind of interior wall according to claim 1 removes aldehyde lotion, which is characterized in that the 1.5% high iodine
Sour potassium solution is prepared by following steps: being weighed 1.5g potassium metaperiodate and is dissolved in 0.2mol/L potassium hydroxide solution, and is diluted to
100ml, in being dissolved by heating on water-bath.
5. the detection method that a kind of interior wall according to claim 1 removes aldehyde lotion, which is characterized in that rolled by elastic wool
It brushes prepared coating application on clad plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811089885.1A CN109406221A (en) | 2018-09-18 | 2018-09-18 | A kind of interior wall removes the detection method of aldehyde lotion |
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| CN201811089885.1A CN109406221A (en) | 2018-09-18 | 2018-09-18 | A kind of interior wall removes the detection method of aldehyde lotion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816464A (en) * | 2021-01-04 | 2021-05-18 | 北京三棵树新材料科技有限公司 | Easy-to-clean rapid air purification detector and testing method thereof |
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Application publication date: 20190301 |