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A Rapid Method for Evaluating Primer Performance

A primer and performance technology, applied in the field of rapid evaluation of primer performance, can solve the problems of low efficiency in the development of new primers and slow down the progress of experiments, and achieve the effects of improving the speed of new product development, reducing workload, and shortening the test cycle

Active Publication Date: 2017-06-23
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a long test cycle will seriously slow down the progress of the experiment, making the efficiency of new product development of the primer very low

Method used

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  • A Rapid Method for Evaluating Primer Performance
  • A Rapid Method for Evaluating Primer Performance
  • A Rapid Method for Evaluating Primer Performance

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0033] A method for quickly evaluating primer performance, characterized in that: the method comprises the following steps:

[0034] ① Brush a layer of test primer with a wet film thickness of 70-90μm on the surface of two or more asbestos cement boards, place it under constant temperature and humidity conditions for 0.25-0.5h, and then bake it in an oven at 45-55°C for 0.5 -Take it out after 1 hour, and then place it under constant temperature and humidity conditions for 0.25-0.5 hours, then paint a layer of test primer with a wet film thickness of 70-90μm, and set it aside;

[0035] ② Brush a layer of test primer with a wet film thickness of 70-90μm on the surface of more than 2 fiber reinforced cement medium density slabs, and set aside;

[0036] ③ Place the asbestos cement board prepared in step ① and the fiber reinforced cement medium density flat board prepared in step ② for 0.5-1h under constant temperature and humidity conditions, put them in an oven at 50-60°C for 15-...

Embodiment 1

[0052] A method for quickly evaluating primer performance, characterized in that: the method comprises the following steps:

[0053] ① Brush a layer of test primer with a wet film thickness of 80μm on the surface of two asbestos cement boards, place it under constant temperature and humidity conditions for 0.5h, then bake it in a 50°C oven for 1h, take it out, and then put it in a constant temperature and constant After placing it under wet conditions for 0.5h, paint a layer of test primer with a wet film thickness of 80μm, and set aside;

[0054] ② Brush a layer of test primer with a wet film thickness of 80 μm on the surface of the three fiber-reinforced cement medium-density slabs, and set aside;

[0055] ③ Place the asbestos cement board prepared in step ① and the fiber reinforced cement medium density flat board prepared in step ② for 0.5h under constant temperature and humidity conditions, put them in an oven at 50°C for 18 hours, take them out, and then place them in a ...

Embodiment 2

[0070] A method for quickly evaluating primer performance, characterized in that: the method comprises the following steps:

[0071] ① Brush a layer of test primer with a wet film thickness of 70 μm on the surface of two asbestos cement boards, place it under constant temperature and humidity conditions for 0.25h, then bake it in a 45°C oven for 0.5h, take it out, and then put it in a constant temperature After placing it under constant humidity conditions for 0.3h, paint a layer of test primer with a wet film thickness of 90μm, and set aside;

[0072] ② Brush a layer of test primer with a wet film thickness of 70 μm on the surface of the two fiber reinforced cement medium density flat plates, and set aside;

[0073] ③Place the asbestos cement board prepared in step ① and the fiber reinforced cement medium density flat board prepared in step ② under constant temperature and humidity conditions for 1 hour, put them in an oven at 55°C for 15 hours, take them out, and then place ...

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Abstract

The invention relates to a method used for rapid evaluation of priming paint performance. The method comprises following steps: the surface of an asbestos cement plate and the surface of a fiber reinforced cement middle density flat board are coated with a priming paint to be tested respectively; the asbestos cement plate and the fiber reinforced cement middle density flat board are subjected to water permeability test, adhesion test, alkali burnout resistance test, and alkali burnout resistance and salting-out resistance test; if the water permeability, adhesive force, the alkali burnout resistance of inner wall priming paint, or alkali burnout resistance and salting-out resistance of outer priming paint are all qualified, the priming paint is qualified; if one parameter selected from the water permeability, adhesive force, the alkali burnout resistance of inner wall priming paint, or alkali burnout resistance and salting-out resistance of outer priming paint is not qualified, the priming paint is unqualified.

Description

technical field [0001] The invention relates to the field of latex paint quality detection, in particular to a method for quickly evaluating the performance of primers. Background technique [0002] The detection standard of the existing latex paint primer is mainly based on JG / T 210-2007 "Primers for Building Interior and Exterior Walls". The technical requirements of this standard for primer products are shown in Table 1: [0003] Table 1 Technical requirements for primer products [0004] [0005] For latex paint primers, the most critical and demanding indicators in this standard are: water permeability, adhesion, pan-alkali resistance and salting-out resistance. To quickly screen products that meet the requirements from a large number of experimental formulas, these four key indicators must be tested first. [0006] The plate making requirements of this standard are shown in Table 2: [0007] Table 2 board making requirements [0008] [0009] According to JG / ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/32
CPCG01N33/32
Inventor 洪杰张仁波王文毅许建明谢兵华郑国伟周龙生
Owner SKSHU PAINT
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