Method for testing water white resistance of real stone paint

A real stone paint, performance technology, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc.

Pending Publication Date: 2021-06-22
广东巴德富新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, when the existing test method is used for testing, the real stone paint may have excellent performance and is considered not easy to produce water whitening phenomenon, but water whitening still appears after the final application, which shows that the existing real stone paint water whitening resistance test method has certain flaws

Method used

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  • Method for testing water white resistance of real stone paint
  • Method for testing water white resistance of real stone paint
  • Method for testing water white resistance of real stone paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1 (low temperature and low humidity blast curing-soaking in water-standard environment drying)

[0049] The test method for water whitening resistance of real stone paint under this condition includes the following steps:

[0050] (1) Paint mixing: first calculate the amount according to the total amount of required paint of 300g and the composition and ratio of the colored sand in formula 1, and then weigh the various sand materials with a total amount of N into the 250ml sample tank A in turn, Shake with a shaker for 5 minutes to disperse evenly, then calculate the dosage according to the total amount of 2*(300-N) and the ratio of slurry (excluding emulsion) and emulsion in formula 1, then weigh and pour into sample tank B In the process, use a high-speed disperser to stir evenly at a speed of 400-800r / min (need to prepare too much) to prepare a mixed slurry (containing emulsion), and finally weigh the mixed slurry (300-N) from the sample tank B and pour P...

Embodiment 2

[0062] Embodiment 2 (low temperature and low humidity blast curing-soaking in water-low temperature and low humidity blast drying)

[0063] The test method for water whitening resistance of real stone paint under this condition includes the following steps:

[0064] (1) Paint mixing: In order to make the conditions of the paint samples consistent, 12 paint samples (formula 1-12) prepared in Example 1 were used for testing.

[0065] (2) Substrate treatment: Take 12 asbestos-free fiber cement pressurized boards with a specification of 150*70*6mm, paint a colorless and transparent primer on the upper surface with a brush, and dry for more than 2 hours for later use;

[0066] (3) Plate making: Take a steel frame with an inner frame size of 140*65mm, an outer frame size of 200*125mm and a thickness of 2mm on the asbestos-free fiber cement pressure plate, align the corners, and then use a 5-inch Scrape the paint samples of formula 1-12 on 12 asbestos-free fiber cement pressure plat...

Embodiment 3

[0075] Embodiment 3 (standard environmental maintenance-soaking in water-low temperature and low humidity blast drying)

[0076] The test method for water whitening resistance of real stone paint under this condition includes the following steps:

[0077] (1) paint distribution: in order to make the paint sample condition consistent, use 12 paint samples (prescription 1-12) prepared by embodiment 1 to test;

[0078] (2) Substrate treatment: Take 12 asbestos-free fiber cement pressurized boards with a specification of 150*70*6mm, paint a colorless and transparent primer on the upper surface with a brush, and dry for more than 2 hours for later use;

[0079] (3) Plate making: Take a steel frame with an inner frame size of 140*65mm, an outer frame size of 200*125mm and a thickness of 2mm on the asbestos-free fiber cement pressure plate, align the corners, and then use a 5-inch Scrape the paint samples of formula 1-12 on 12 asbestos-free fiber cement pressure plates in batches al...

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Abstract

The invention discloses a method for testing the water white resistance of real stone paint under the conditions of large temperature difference, wind blowing and low humidity. The method comprises the following steps: (1) preparing paint; (2) treating a substrate; (3) performing plate making; (4) curing, namely curing the cement pressurizing plate in a forced air drying oven with the temperature controlled to be 3-7 DEG C and the humidity controlled to be 30% RH + / -5% RH; (5) soaking in water: vertically or obliquely putting the pressurizing plate into a water tank of 23 + / -2 DEG C, so that part of the region is soaked, and part of the region is not soaked; (6) drying: drying the cement pressurizing plate soaked in water in a forced air drying oven with the temperature controlled to be 3-7 DEG C and the humidity controlled to be 30% RH + / -5% RH; (7) dehumidifying; and (8) judging. According to the invention, the influence of the synergistic effect of the three factors of large temperature difference, low humidity and wind blowing on the water white of the real stone paint is found, the test method carries out maintenance and drying under the conditions of low temperature, low humidity and wind blowing, and the water white resistance of the real stone paint after being influenced by weather in the later period can be further detected.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to a method for testing the water-whitening resistance of real stone paints. Background technique [0002] Real stone paint uses synthetic resin emulsion as the main binder, sand, stone particles and stone powder as aggregates to form a synthetic resin emulsion sand wall architectural coating with a stone texture finish coating on the surface of the building. Real stone paint not only has a decorative effect similar to marble and granite, but also has good acid and alkali resistance, pollution resistance, strong adhesion, and light fading. It can effectively prevent the erosion of the cement base of the building by the harsh external environment and prolong the life of the building; the construction is simple, easy to dry and time-saving. Due to its advantages of strong decoration, wide applicability and economic benefits, it has been widely used. [0003] However, in some ca...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/002
Inventor 周晨田太阳周才俊李建城
Owner 广东巴德富新材料有限公司
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