CN103592296A - Method for demonstrating formaldehyde removing effect of paint film with formaldehyde removing function - Google Patents
Method for demonstrating formaldehyde removing effect of paint film with formaldehyde removing function Download PDFInfo
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- CN103592296A CN103592296A CN201310562240.6A CN201310562240A CN103592296A CN 103592296 A CN103592296 A CN 103592296A CN 201310562240 A CN201310562240 A CN 201310562240A CN 103592296 A CN103592296 A CN 103592296A
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Abstract
The invention relates to a method for demonstrating a formaldehyde removing effect of a paint film with a formaldehyde removing function. Chemical reaction of the demonstration method is based on an AHMT (4-amino-3-hydrazino-5-mercapto-1, 2, 4-triazol) method for testing formaldehyde. A to-be-tested sample plate is coated with paint with a formaldehyde removing function and paint without a formaldehyde removing function, the paint is oxidized into a purple red compound by potassium periodate through condensation of formaldehyde and AHMT under an alkaline condition after dried, and the formaldehyde content is tested through colorimetric ration. According to the method for demonstrating the formaldehyde removing effect of the paint film with the formaldehyde removing function, the formaldehyde removing effect of the paint film with the formaldehyde removing function can be demonstrated in ten minutes through color change comparison and can be demonstrated to a customer rapidly and directly, the cognition on the paint with the formaldehyde removing function is enhanced further, and marketing demonstration is facilitated.
Description
Technical field
The invention belongs to building and decoration field, particularly a kind of formaldehyde removing coating paint film aldehydes removal effect demenstration method.
Background technology
The commercially available latex paint that lays claim to anti-formaldehyde functional effect of China, all needs to meet People's Republic of China's building material industry standard: the regulation in function of purifying indoor air coating material purifying property JC/T1074-2008 at present.Wherein purifying formaldehyde rate at least will reach 75%, and the lasting purifying rate of formaldehyde at least will reach 60% can.But existing method need to be the enclosure space test of a cubic metre, and needs 7 days above test durations, finally calculates by spectrophotometric method, this is the aldehydes removal effect that is unfavorable for demonstrating fast to consumer in showroom its coating that lays claim to aldehydes removal function.
Summary of the invention
The object of the present invention is to provide a kind of formaldehyde removing coating paint film aldehydes removal effect demenstration method, it can intuitively show whether coating has aldehydes removal effect fast.
The present invention is achieved in that a kind of formaldehyde removing coating paint film aldehydes removal effect demenstration method, comprises following step:
(1), prepare model to be measured: with electronic scales, weigh respectively coating to be measured and distilled water mixes according to the ratio of weight and number of 90-110:10-30, then by potpourri brushing uniformly on sample board; After two hours, brush second time, after brushing, under the moistening state of paint film, filter paper is pasted in the above, coating is made model to be measured after dry or heating make coating dry at ambient temperature;
(2), with dropper pipette two to three of potassium metaperiodate reagent drip in model to be measured above the filter paper of sticky embedding, afterwards at once again with another dropper pipette two to three of stand-by formaldehyde dilutions in model to be measured above the filter paper of sticky embedding, then with glass sheet, cover filter paper completely;
(3), open glass sheet after covering glass sheet 3-10 minute, with dropper, pipette 4-amino-3-hydrazine-5-sulfydryl-1,2, two to three of 4-triazole reagent drip in model to be measured above the filter paper of sticky embedding, observe the change color on filter paper, if filter paper nondiscolouring coating to be measured is the coating with aldehydes removal function, if filter paper variable color coating to be measured for not thering is the coating of aldehydes removal function.
Further prioritization scheme is: described model to be measured comprises at least two groups, and wherein at least one group is for brushing, to have the detection model to be measured of the coating of aldehydes removal function, and at least another group is for being used for brushing the contrast model to be measured of the coating without aldehydes removal function.
Further prioritization scheme is: described filter paper sticks on sample board by parallel matrix form according to the size of sample board, the distance >=4cm between filter paper.
Further prioritization scheme is: described glass sheet is greater than filter paper, and the length of glass sheet * wide * thick is 50-70mm * 50-70mm * 2-4mm.
Formaldehyde removing coating paint film aldehydes removal effect demenstration method of the present invention has the following advantages: the chemical reaction of demenstration method of the present invention is surveyed formaldehyde based on AHMT method: AHMT method nail aldehyde and AHMT (4-amino-3-hydrazine-5-sulfydryl-1,2,4-triazole) condensation under alkali condition, through potassium metaperiodate, be oxidized to aubergine compound, then colorimetric assay detects the method [13] of content of formaldehyde, this method specificity and selectivity are all better, interference measurement not when the aldehyde materials such as a large amount of acetaldehyde, propionic aldehyde, butyraldehyde, phenylacetaldehyde coexist, detects and is limited to 0.04mg/L.By demenstration method of the present invention, can within ten minutes, the variation contrast by color show the aldehydes removal effect with aldehydes removal functional paint paint film, can give client to demonstrate fast and intuitively, and then strengthening is to having the understanding of the function of aldehydes removal effect coating, being beneficial to marketing and showing.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail.
(1) embodiment is as follows:
A coating paint film aldehydes removal effect demenstration method, comprises following step:
(1), prepare model to be measured: with electronic scales, weigh respectively coating to be measured and distilled water mixes according to the ratio of weight and number of 90-110:10-30, then by potpourri brushing uniformly on sample board; After two hours, brush second time, after brushing, under the moistening state of paint film, filter paper is pasted in the above, coating is made model to be measured after dry or heating make coating dry at ambient temperature;
(2), with dropper pipette two to three of potassium metaperiodate reagent drip in model to be measured above the filter paper of sticky embedding, afterwards at once again with another dropper pipette two to three of stand-by formaldehyde dilutions in model to be measured above the filter paper of sticky embedding, then with glass sheet, cover filter paper completely;
(3), open glass sheet after covering glass sheet 3-10 minute, with dropper, pipette 4-amino-3-hydrazine-5-sulfydryl-1,2, two to three of 4-triazole reagent drip in model to be measured above the filter paper of sticky embedding, observe the change color on filter paper, if filter paper nondiscolouring coating to be measured is the coating with aldehydes removal function, if filter paper variable color coating to be measured for not thering is the coating of aldehydes removal function.
Model to be measured of the present invention comprises at least two groups, and wherein at least one group is for brushing, to have the detection model to be measured of the coating of aldehydes removal function, and at least another group is for being used for brushing the contrast model to be measured of the coating without aldehydes removal function.
Potpourri wool brush brushing described in step (1); Sample board adopts cement plate, cement asbestos board, plank, sheet metal etc. can be used for the sample board of brushing paint.Described filter paper can be cut into a plurality of square filter paper of 3-5cm * 3-5cm, and filter paper sticks on sample board by parallel matrix form according to the size of sample board, the distance >=4cm between filter paper; Can in the different time, to different clients, demonstrate respectively according to client's demand like this.
Described in step (2), (3), glass sheet is greater than filter paper, and the length of glass sheet * wide * thick is 50-70mm * 50-70mm * 2-4mm.
(2) embodiment is as follows:
Embodiment 1: a kind of formaldehyde removing coating paint film aldehydes removal effect demenstration method, comprises following step:
(1), prepare model to be measured: with electronic scales, weigh respectively and there is 100 grams of coating and 20 grams of the distilled water of aldehydes removal function and mix, then both potpourris are brushed on cement asbestos board uniformly with wool brush; After two hours, brush second time, after brushing, under the moistening state of paint film, the square filter paper that is cut into 4cm * 4cm is pasted respectively in the above, according to the size of cement asbestos board, by parallel matrix form, paste, the distance >=4cm between filter paper, heating is made model to be measured after coating is dried rapidly.
(2), the above-mentioned model to be measured preparing is placed on the table, with dropper, pipetting two to three of potassium metaperiodate reagent is embedded in above the filter paper of model to be measured in sticky, with a dropper, pipette two to three of stand-by formaldehyde dilutions is more afterwards embedded in above the filter paper of model to be measured in sticky at once, then with glass sheet, cover filter paper completely, glass sheet is greater than filter paper, and the length of glass sheet * wide * thick is 60mm * 60mm * 3mm.
(3), cover glass sheet and open glass sheet after 5 minutes, with dropper, pipette 4-amino-3-hydrazine-5-sulfydryl-1, two to three of 2,4-triazole reagent drip in sticky and are embedded in above the filter paper of model to be measured, observe the change color on filter paper, if filter paper nondiscolouring is for having the coating of aldehydes removal function; If filter paper fades to purple for there is no the common coating of aldehydes removal function by light red.
Embodiment 2: a kind of formaldehyde removing coating paint film aldehydes removal effect demenstration method, comprises following step:
(1), prepare model to be measured: with electronic scales, weigh respectively and there is 100 grams of coating and 20 grams of the distilled water of aldehydes removal function and mix, then both potpourris are brushed on cement asbestos board uniformly with wool brush; After two hours, brush second time, after brushing, under the moistening state of paint film, the square filter paper that is cut into 4cm * 4cm is pasted respectively in the above, according to the size of cement asbestos board, by parallel matrix form, paste, distance >=4cm between filter paper, detects with model to be measured (this model can be ready in advance) from dry making after 7 days at ambient temperature; With electronic scales, weigh respectively and there is no 100 grams of the common coating of aldehydes removal function and 20 grams of distilled water and mix, then both potpourris are brushed on cement asbestos board uniformly with wool brush; After two hours, brush second time, after brushing, under the moistening state of paint film, the square filter paper that is cut into 4cm * 4cm is pasted respectively in the above, according to the size of cement asbestos board, by parallel matrix form, paste, distance >=4cm between filter paper, contrasts with model to be measured (this model can be ready in advance) from dry making after 7 days at ambient temperature.
(2), by the above-mentioned detection preparing with model to be measured with contrast with the parallel placement of model to be measured on the table, with dropper, pipetting two to three of potassium metaperiodate reagent is embedded in above the filter paper of model to be measured in sticky, with a dropper, pipette two to three of stand-by formaldehyde dilutions is more afterwards embedded in above the filter paper of model to be measured in sticky at once, then with glass sheet, cover filter paper completely, glass sheet is greater than filter paper, and the length of glass sheet * wide * thick is 60mm * 60mm * 3mm.
(3), cover glass sheet and open glass sheet after 5 minutes, with dropper, pipette 4-amino-3-hydrazine-5-sulfydryl-1,2, two to three of 4-triazole reagent drip in sticky and are embedded in above the filter paper of model to be measured, observe the change color on filter paper, if filter paper nondiscolouring is for having the detection model to be measured of the coating of aldehydes removal function; If filter paper fades to purple for there is no the contrast model to be measured of the common coating of aldehydes removal function by light red.By demenstration method of the present invention, can within ten minutes, the variation contrast by color show the aldehydes removal effect with aldehydes removal functional paint paint film, can give client to demonstrate fast and intuitively.
Embodiment 3: a kind of formaldehyde removing coating paint film aldehydes removal effect demenstration method, comprises following step:
(1), prepare model to be measured: with electronic scales, weigh respectively and there is 100 grams of coating and 20 grams of the distilled water of aldehydes removal function and mix, with electronic scales, weigh respectively and there is no 100 grams of the common coating of aldehydes removal function and 20 grams of distilled water and mix, then potpourri is brushed respectively on cement asbestos board uniformly with wool brush, half and boundary that every kind of coating brushing area accounts for the cement asbestos board total area are clearly demarcated; After two hours, brush respectively second time, after brushing, under the moistening state of paint film, the square filter paper that is cut into 4cm * 4cm is pasted respectively in the above, according to the size of cement asbestos board, by parallel matrix form, paste, distance >=4cm between filter paper, heating is made model to be measured after coating is dried rapidly.
(2), the above-mentioned model to be measured preparing is placed on the table, with dropper, pipetting two to three of potassium metaperiodate reagent drips in being coated be respectively brushed with the common coating that has the coating of aldehydes removal function and there is no aldehydes removal function sticky and is embedded in above the filter paper of model to be measured, at once with a dropper, pipette two to three of stand-by formaldehyde dilutions above correspondence sticky is embedded in the filter paper of model to be measured more afterwards, then with glass sheet, cover filter paper completely, glass sheet is greater than filter paper, and the length of glass sheet * wide * thick is 60mm * 60mm * 3mm.
(3), cover glass sheet and open glass sheet after 5 minutes, with dropper, pipette 4-amino-3-hydrazine-5-sulfydryl-1,2, two to three of 4-triazole reagent drip above correspondence sticky is embedded in the filter paper of model to be measured, observe the change color on filter paper, if filter paper nondiscolouring is for having the coating of aldehydes removal function; If filter paper fades to purple for there is no the common coating of aldehydes removal function by light red.
Formaldehyde dilution described above is that 10 grams of formalins (analyzing pure) and 190 grams of distilled water mix and make; It is for show the target solution of aldehydes removal effect to client.Potassium metaperiodate reagent is the auxiliary reagent that can make formaldehyde colour developing, and potassium metaperiodate reagent (analyzing pure) can directly be used.4-amino-3-hydrazine-5-dredges base-1, and 2,4-triazole (AHMT) reagent is the reagent that can make formaldehyde colour developing, and 4-amino-3-hydrazine-5-dredges base-1, and 2,4-triazole (AHMT) reagent, can directly be used.Cement asbestos board is the construction demonstration carrier of coating.The construction tool of wool brush coating.Filter paper is the operation interface of formaldehyde removing demonstration, makes to have the interface that emulsion, formaldehyde, formaldehyde chromogenic reagent and the formaldehyde colour developing auxiliary reagent of aldehydes removal function produce chemical reaction mutually.The effect of glass sheet is to prevent that formaldehyde and other auxiliary agent from volatilizing fast and making the failure of an experiment that develops the color.The effect of dropper is to drip various liquid.
Above-mentioned embodiment is just explained in detail technical scheme of the present invention, and the present invention has more than and is only confined to above-described embodiment, and every any improvement or replacement according to the principle of the invention, all should be within protection scope of the present invention.
Claims (4)
1. a formaldehyde removing coating paint film aldehydes removal effect demenstration method, is characterized in that: comprise following step:
(1), prepare model to be measured: with electronic scales, weigh respectively coating to be measured and distilled water mixes according to the ratio of weight and number of 90-110:10-30, then by potpourri brushing uniformly on sample board; After two hours, brush second time, after brushing, under the moistening state of paint film, filter paper is pasted in the above, coating is made model to be measured after dry or heating make coating dry at ambient temperature;
(2), with dropper pipette two to three of potassium metaperiodate reagent drip in model to be measured above the filter paper of sticky embedding, afterwards at once again with another dropper pipette two to three of stand-by formaldehyde dilutions in model to be measured above the filter paper of sticky embedding, then with glass sheet, cover filter paper completely;
(3), open glass sheet after covering glass sheet 3-10 minute, with dropper, pipette 4-amino-3-hydrazine-5-sulfydryl-1,2, two to three of 4-triazole reagent drip in model to be measured above the filter paper of sticky embedding, observe the change color on filter paper, if filter paper nondiscolouring coating to be measured is the coating with aldehydes removal function, if filter paper variable color coating to be measured for not thering is the coating of aldehydes removal function.
2. formaldehyde removing coating paint film aldehydes removal effect demenstration method according to claim 1, it is characterized in that: described model to be measured comprises at least two groups, wherein at least one group is for brushing, to have the detection model to be measured of the coating of aldehydes removal function, and at least another group is for being used for brushing the contrast model to be measured of the coating without aldehydes removal function.
3. formaldehyde removing coating paint film aldehydes removal effect demenstration method according to claim 1 and 2, is characterized in that: described filter paper sticks on sample board by parallel matrix form according to the size of sample board the distance >=4cm between filter paper.
4. formaldehyde removing coating paint film aldehydes removal effect demenstration method according to claim 3, is characterized in that: described glass sheet is greater than filter paper, and the length of glass sheet * wide * thick is 50-70mm * 50-70mm * 2-4mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310562240.6A CN103592296B (en) | 2013-11-12 | 2013-11-12 | Formaldehyde removing coating paint film removes aldehyde effect demenstration method |
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| CN201310562240.6A CN103592296B (en) | 2013-11-12 | 2013-11-12 | Formaldehyde removing coating paint film removes aldehyde effect demenstration method |
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| CN103592296B CN103592296B (en) | 2016-10-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109406221A (en) * | 2018-09-18 | 2019-03-01 | 佛山市顺德区巴德富实业有限公司 | A kind of interior wall removes the detection method of aldehyde lotion |
| CN111243409A (en) * | 2020-03-13 | 2020-06-05 | 俞晨秀 | Demonstration component of color-changing reagent and color-changing demonstration method |
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| CN109406221A (en) * | 2018-09-18 | 2019-03-01 | 佛山市顺德区巴德富实业有限公司 | A kind of interior wall removes the detection method of aldehyde lotion |
| CN111243409A (en) * | 2020-03-13 | 2020-06-05 | 俞晨秀 | Demonstration component of color-changing reagent and color-changing demonstration method |
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| CN103592296B (en) | 2016-10-19 |
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