Standardized evaluation method for application performance of multicolor paint

Abstract

The invention relates to a standardized evaluation method for the application performance of a multicolor coating. The method comprises the following steps: S1, determining an evaluation index for the application performance of the multicolor coating; the application performance evaluation indexes of the multicolor paint comprise paint appearance, sagging property, multicolor definition, particle size and hardness, paint film cracking, spraying smoothness, paint film initial water resistance, paint film water resistance, anti-seismic stability, coating rate, floating property and color point change condition after water resistance; s2, performing simulation construction on the to-be-detected colorful paint sample; s3, a plurality of trained evaluation personnel are selected, and the evaluation indexes of the application performance of the colorful paint are measured and scored; and S4, analyzing the application performance of the to-be-tested multicolor paint according to a scoring result, and judging whether the application performance of the to-be-tested multicolor paint meets requirements or not. According to the method, the evaluation indexes of the application performance of the multicolor paint are determined from multiple aspects, and a foundation is laid for further realizing quantifiable, objective and scientific evaluation of the application performance of the multicolor paint.

Description

Technical Field

[0001] The invention relates to the technical field of coating application, and in particular to a standardized evaluation method for the application performance of multi-color coatings. Background Art

[0002] With the development of society and the continuous improvement of people's living standards, the real estate industry has flourished, and the urbanization process has continued to advance. As a result, a large number of residential buildings and other high-rise buildings have emerged. Purely natural and relatively expensive marble or granite slabs can no longer meet the needs of large-scale building exterior wall decoration. In addition, the use of large rock slabs as finishes on the exterior walls of buildings is public hazardous and should not be used on a large area of ​​high-rise building exterior walls. Therefore, in order for buildings to achieve the luxurious appearance of granite, materials imitating granite continue to emerge. Due to the heterogeneity of granite colors, the imitation process is very complicated. People need a coating that is easy to imitate to simplify the complexity of the imitation process. Against this background, colorful coatings came into being and were rapidly promoted due to their energy-saving, environmentally friendly, and highly simulated three-dimensional effects.

[0003] At present, due to the lack of systematic scoring standards and evaluation systems for the application performance of multi-color coatings in the industry, it is impossible to objectively and uniformly compare the application performance of multi-color coatings. At the same time, most of the application performance testing indicators of multi-color coatings are generally limited to the dimensions of physical and chemical properties and some national standards, which cannot fully reflect the application performance quality level of multi-color coatings and have limited reference value for actual construction.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a standardized evaluation method for the application performance of multi-color coatings.

[0006] The technical solution adopted by the present invention is:

[0007] The present invention provides a standardized evaluation method for the application performance of a multi-color coating, comprising the following steps:

[0008] S1. Determine the evaluation index of the application performance of multi-color coatings;

[0009] The multi-color coating application performance evaluation index includes coating appearance, sagging, multi-color clarity, particle size and hardness, coating cracking, spraying smoothness, initial water resistance of coating, coating water resistance, seismic stability, coating rate, blooming and color point changes after water resistance;

[0010] S2, simulate the construction of the multi-colored paint sample to be tested;

[0011] S3, selecting a number of trained evaluators to measure and score the application performance evaluation indicators of the multi-colored coating;

[0012] S4. Analyze the application performance of the multi-colored coating to be tested according to the scoring result to determine whether the application performance of the multi-colored coating to be tested meets the requirements.

[0013] The present invention proposes a standardized evaluation method for the application performance of multi-color coatings, which determines the evaluation indicators of the application performance of multi-color coatings from multiple aspects, laying a foundation for further realizing the quantification, objectivity and scientific evaluation of the application performance of multi-color coatings, and can effectively evaluate the quality level of multi-color coating products during the construction process, and reduce a series of quality problems that may occur during the subsequent use of products.

[0014] Optionally, the test methods and evaluation criteria for each of the multi-colored coating application performance evaluation indicators are shown in the following table:

[0015]

[0016]

[0017]

[0018] According to the above description, the present invention is based on the background that the existing multi-color coating detection process only has type inspection indicators but lacks corresponding application test standards. Through the exploration of a large number of experimental results, the scoring standard of the application performance of multi-color coatings is determined, so that the abstract application performance of multi-color coatings can be intuitively presented, and horizontal unified comparison can be carried out to quantitatively evaluate the advantages and disadvantages of the application performance of multiple multi-color coating products. The evaluation standards of the present invention are specific, the evaluation results are real and objective, the dimensions are rich, and the feasibility is strong. The constructed scientific evaluation system can comprehensively and holistically reflect the application performance quality level of multi-color coatings.

[0019] Optionally, in step S4, if the score of the coating cracking evaluation index is lower than 9 points, it is judged as an unqualified item, and if the score of the other evaluation indexes is lower than 6 points, it is judged as an unqualified item;

[0020] A horizontal comparison is performed on multiple groups of sample data to obtain a comprehensive evaluation result of the application performance of the multi-colored coating to be tested.

[0021] Optionally, the simulated construction method is spraying construction.

[0022] Optionally, the spraying construction uses a high-viscosity pressure barrel spray gun specially used for multi-color paint, with the following specifications: maximum nozzle size is 2.5-5.0mm caliber, maximum flow rate is 300mL / s, recommended working pressure is 0.8-2.5bar, maximum output pressure is 8N / S, and gas consumption is 0.36L / min.

[0023] Optionally, the spraying method is: spraying at a pressure of 0.3-0.5 N / mm 2 When the angle between the nozzle and the wall is 90° and the distance is 40-50cm, the paint from the nozzle is continuously discharged and sprayed evenly. The spraying method is horizontal movement, vertical movement or circle spraying. It is not allowed to overlap, cross or mix horizontally and vertically. The coating rate is 300-1300g / m 2 . DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with specific examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention.

[0025] Example 1

[0026] A standardized evaluation method for the application performance of multi-color coatings comprises the following steps:

[0027] S1. Determine the evaluation index of the application performance of multi-color coatings;

[0028] Among them, the multi-color coating application performance evaluation indicators include coating appearance, sag, multi-color clarity, particle size and hardness, coating cracking, spraying smoothness, initial coating water resistance, coating water resistance, seismic stability, coating rate, floweriness and color point changes after water resistance.

[0029] S2. Carry out simulated construction on the multi-colored paint sample to be tested.

[0030] Wherein, the method of simulation construction is spraying construction.

[0031] The spraying construction adopts a high-viscosity pressure barrel spray gun specially used for multi-color paint, and its specifications are: the maximum nozzle size is 2.5-5.0mm caliber, the maximum flow rate is 300mL / s, the recommended working pressure is 0.8-2.5bar, the maximum output pressure is 8N / S, and the gas consumption is 0.36L / min.

[0032] The spraying method is as follows: spraying at a pressure of 0.3-0.5 N / mm 2 When the angle between the nozzle and the wall is 90° and the distance is 40-50cm, the paint from the nozzle is continuously discharged and sprayed evenly. The spraying method is horizontal movement, vertical movement or circle spraying. It is not allowed to overlap, cross or mix horizontally and vertically. The coating rate is 300-1300g / m 2 .

[0033] S3. Select several trained evaluators to measure and score the application performance evaluation indicators of the multi-colored coating.

[0034] According to the test methods and evaluation standards of the various multi-color coating application performance evaluation indicators, a table is prepared, as shown in Table 1 below.

[0035] S4. Analyze the application performance of the multi-colored coating to be tested according to the scoring result to determine whether the application performance of the multi-colored coating to be tested meets the requirements.

[0036] Among them, the coating cracking evaluation index with a score lower than 9 points is judged as unqualified, and the scores of the other evaluation indicators with a score lower than 6 points are judged as unqualified;

[0037] A horizontal comparison is performed on multiple groups of sample data to obtain a comprehensive evaluation result of the application performance of the multi-colored coating to be tested.

[0038] Table 1

[0039]

[0040]

[0041]

[0042] Example 2

[0043] The difference between this embodiment and embodiment 1 is that the multi-colored paint samples to be tested are different, and the table is shown in the following Table 2. The remaining steps remain unchanged.

[0044] Table 2

[0045]

[0046]

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A standardized evaluation method for the application performance of multi-color coatings, comprising the following steps: S1. Determine the evaluation index of the application performance of multi-color coatings; The multi-color coating application performance evaluation index includes coating appearance, sagging, multi-color clarity, particle size and hardness, coating cracking, spraying smoothness, initial water resistance of coating, coating water resistance, seismic stability, coating rate, blooming and color point changes after water resistance; S2, simulate the construction of the multi-colored paint sample to be tested; S3, selecting a number of trained evaluators to measure and score the application performance evaluation indicators of the multi-colored coating; S4. Analyze the application performance of the multi-colored coating to be tested according to the scoring result to determine whether the application performance of the multi-colored coating to be tested meets the requirements.

2. The standardized evaluation method for application performance of multi-color coatings according to claim 1, characterized in that: The test methods and evaluation standards for the various multi-color coating application performance evaluation indicators are shown in the following table: 。 3. The standardized evaluation method for the application performance of multi-color coatings as claimed in claim 2, characterized in that: In step S4, if the score of the coating cracking evaluation index is less than 9 points, it is judged as a non-conforming item, and if the score of the other evaluation indexes is less than 6 points, it is judged as a non-conforming item; A horizontal comparison is performed on multiple groups of sample data to obtain a comprehensive evaluation result of the application performance of the multi-colored coating to be tested.

4. The standardized evaluation method for application performance of multi-color coatings according to claim 1, characterized in that: The method of the simulated construction is spraying construction.

5. The standardized evaluation method for application performance of multi-color coatings as claimed in claim 4, characterized in that: The spraying construction adopts a high-viscosity pressure barrel spray gun specially used for multi-color paint, and its specifications are: the maximum nozzle size is 2.5-5.0mm caliber, the maximum flow rate is 300mL / s, the recommended working pressure is 0.8-2.5bar, the maximum output pressure is 8N / S, and the gas consumption is 0.36L / min.

6. The standardized evaluation method for application performance of multi-color coatings according to claim 4 or 5, characterized in that: The spraying method is as follows: spraying at a pressure of 0.3-0.5 N / mm 2 When the angle between the nozzle and the wall is 90° and the distance is 40-50cm, the paint from the nozzle is continuously discharged and sprayed evenly. The spraying method is horizontal movement, vertical movement or circle spraying. It is not allowed to overlap, cross or mix horizontally and vertically. The coating rate is 300-1300g / m 2 .

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