Method for detecting emulsion paint film and smell in construction

Abstract

The invention relates to the field of detection of the smell of a paint film, especially to a method for detecting an emulsion paint film and smell in construction. The method comprises the following steps: step 1, cleaning a smell determination cabin and a glass plate with distilled water and drying the cleaned smell determination cabin and glass plate for subsequent usage; step 2, testing the smell of the emulsion paint film in roller coating construction by carrying out roller coating of the film on the glass plate, then placing the glass plate into the smell determination cabin, closing the door of the cabin, then opening the door of the cabin and carrying out testing by using a smell measuring instrument; step 3, testing the smell of the emulsion paint film by completely opening the door of the smell determination cabin, then tightly closing the door of the smell determination cabin again, carrying out standing for at least 1 h, then opening the door of the cabin and carrying out testing by using the smell measuring instrument; step 4, repeating testing the smell of the emulsion paint film in the step 3 twice to three times, wherein an interval between two adjacent tests is at least 2 h; and step 5, result evaluation. The method can objectively and authentically reflect the smell given out by the emulsion paint film during construction and eliminate uncertainty in detection process.

Description

technical field [0001] The invention relates to the field of paint film odor detection, in particular to a method for detecting latex paint film and construction odor. Background technique [0002] During the preparation and construction of latex paint, the smell of the latex paint will be further amplified due to the addition of different emulsions and the further atomization of the latex paint during the spraying process. The existing detection method - Nippon Paint's 2008 patent (CN101118231A) mainly adopts the subjective judgment method of people, uses statistical methods, samples through many people, and further compares the size of two kinds of smells to people. This detection method lacks objective judgment basis and cannot intuitively reflect the size of the smell; at the same time, too few samples are selected, the statistical convincing power is not strong, and people's subjective judgment is affected by many uncertain factors. It is not exactly the same, and it i...

AI Technical Summary

Problems solved by technology

This detection method lacks objective judgment basis and cannot intuitively reflect the size of the smell; at the same time, too few samples are selected, the statistical power is not strong, and people's subjective judgment is affected by many uncertain factors. It is not exactly the same, and it is even more impossible to distinguish samples with similar odors. At the same time, the 3h odor dissipation mentioned in CN101118231AZ has no reasonable index characterization, so it is full of many uncertainties and also affects the accuracy of the results. At the same time, the judgment is only limited to the finished paint and the paint film measurement within the scope of the laboratory, and the more important construction environment has not been paid attention to. Therefore, the current judgment method has many limitations.

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