Coating anticondensation performance test system and test method

A test system and anti-condensation technology, which is applied in measuring devices, material weighing, analyzing materials, etc., can solve the problem of large human operation errors, inability to accurately evaluate the anti-condensation performance of coatings, and inability to accurately, comprehensively and scientifically evaluate Coating anti-condensation performance test device and test method, etc., to meet the test requirements and the test results are intuitive and readable

Inactive Publication Date: 2012-12-12
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, most of the test objects of this test method are thick paints, which cannot accurately and comprehensively evaluate the anti-condensation performance of paints
In the United States, a test equipment and method for anti-condensation performance of military coatings was developed in 1974. It was formulated for the application sites of military coatings. The materials and facilities used in this method are simple, and human operation errors are large, so it cannot accurately evaluate the anti-condensation performance of coatings.
[0005] From the above analysis, it can be concluded that there is currently no testing device and testing method that can accurately, comprehensively and scientifically evaluate the anti-condensation performance of coatings

Method used

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  • Coating anticondensation performance test system and test method
  • Coating anticondensation performance test system and test method
  • Coating anticondensation performance test system and test method

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0061] Example 1: Thin anti-condensation liquid coating

[0062] Weigh a 20g sample of the anti-condensation paint, and apply it to the outer surface of the paint carrier twice according to step 1), and then place it in the laboratory to dry. After drying for 7 days, place the prepared paint carrier with the coating on the surface in the specified position in the temperature and humidity control chamber, and gradually carry out the test according to step 2) to step 6) in the test method, and calculate according to step 7).

[0063] Test conditions of temperature and humidity control chamber: temperature is 30℃, relative humidity is 70%. The working temperature of the circulating water bath is 10°C. The temperature difference between the inside and outside of the coating applied to the surface of the paint carrier is 20°C. The anti-condensation performance test process curve of the coating is as follows image 3 As shown, the abscissa in the figure is time (min), this test cycle is 3

Example Embodiment

[0069] Example 2: Thick anti-condensation powder coating

[0070] Carry out the test operation according to the aforementioned test methods and steps, the specific operating values ​​are:

[0071] Weigh 70g sample of anti-condensation paint, follow step 1) to stir and disperse evenly with water, and then evenly paint on the outer surface of the paint carrier in two passes, and then dry for 7 days, then cover the prepared paint carrier with the coating on the surface For the specified position in the temperature and humidity control chamber, gradually follow the steps 2) to 6) of the test method for testing, and calculate according to step 7).

[0072] Test conditions of temperature and humidity control chamber: temperature is 25℃, relative humidity is 95%. The circulating water bath temperature is 3°C. The temperature difference between the inside and outside of the coating applied to the surface of the paint carrier is 22°C. The anti-condensation performance test process curve of th

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Abstract

The invention relates to a coating anticondensation performance test system and a test method. The system contains a temperature and humidity control bin, a circulator bath, a coating carrier, a dew collector, an electronic balance, a computer, and associated lines and data lines. The circulator bath and the computer are disposed outside the temperature and humidity control bin. The coating carrier, the dew collector and the electronic balance are placed inside the temperature and humidity control bin. The electronic balance is arranged at the bottom and is connected with the computer. The upper portion of the dew collector is opened and the dew collector is mounted on the electronic balance. The coating carrier is positioned over the dew collector and dose not contact with the dew collector. The external surface of the coating carrier is coated with a coating and the inside of the coating carrier communicates with the circulator bath through a pipeline. The test method comprises the following steps of: arranging devices such as the coating carrier and the like, setting the temperature and humidity condition and test period, recording condensation starting time and balance weight as well as end time and balance weight, and calculating condensation amount and condensation rate according to the recorded values. The test system and the test method can be used to analyze condensation performance of different coatings and have scientific nature and practicality.

Description

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Claims

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Application Information

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Owner CHINA BUILDING MATERIALS ACAD
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