Method for demonstrating formaldehyde removing effect of paint film with formaldehyde removing function
A demonstration method, paint technology, applied in the field of architecture and decoration, can solve the problem of paint aldehyde removal effect that is unfavorable for aldehyde removal function, and achieve the effects of good marketing display, enhanced function understanding, specificity and selectivity
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[0014] A method for demonstrating the formaldehyde-removing paint film formaldehyde-removing effect of a paint film, comprising the following steps:
[0015] (1) Prepare the sample to be tested: use an electronic scale to weigh the paint to be tested and distilled water to mix evenly according to the weight ratio of 90-110:10-30, and then paint the mixture evenly on the sample plate; two hours After painting for the second time, paste the filter paper on the paint film in a wet state after painting, and make the sample to be tested after the paint is dried by itself or heated at room temperature to make the paint dry;
[0016] (2) Use a dropper to pipette two to three drops of potassium periodate reagent onto the filter paper embedded in the sample to be tested, and then immediately use another dropper to pipette two to three drops of the formaldehyde dilution to be used Drop on the filter paper embedded in the sample to be tested, and then completely cover the filter paper wi...
Embodiment 1
[0022] Embodiment 1: A method for demonstrating the effect of removing formaldehyde from a paint film of a formaldehyde removal paint, comprising the following steps:
[0023] (1) Prepare the sample to be tested: use an electronic scale to weigh 100 grams of paint with aldehyde removal function and 20 grams of distilled water and mix them evenly, and then paint the mixture evenly on the asbestos cement board with a wool brush; Paint the second time after an hour. After painting, in the wet state of the paint film, paste filter paper cut into 4cm×4cm squares on it respectively, and paste them in a parallel matrix according to the size of the asbestos cement board. The distance is ≥4cm, heat the paint to dry quickly and then make the sample to be tested.
[0024] (2) Place the prepared sample to be tested above on the table, pipette two to three drops of potassium periodate reagent on the filter paper embedded in the sample to be tested with a dropper, and then immediately use a...
Embodiment 2
[0026] Embodiment 2: A method for demonstrating the effect of removing formaldehyde from a paint film of a formaldehyde removal paint, comprising the following steps:
[0027] (1) Prepare the sample to be tested: use an electronic scale to weigh 100 grams of paint with aldehyde removal function and 20 grams of distilled water and mix them evenly, and then paint the mixture evenly on the asbestos cement board with a wool brush; Paint the second time after an hour. After painting, in the wet state of the paint film, paste filter paper cut into 4cm×4cm squares on it respectively, and paste them in a parallel matrix according to the size of the asbestos cement board. The distance is ≥4cm, and after drying at room temperature for 7 days, make a test sample for testing (this sample can be prepared in advance); use an electronic scale to weigh 100 grams of ordinary paint without aldehyde removal function and 20 grams of distilled water and mix them evenly , and then apply the mixture...
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