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Method measuring inter-batch stability of latex paint by using rotational rheometer

A technology of rotational rheometer and latex paint, applied in the direction of flow characteristics, instruments, measuring devices, etc., can solve the problems of inability to obtain experimental results, inability to fully inspect product quality fluctuations, and large manpower, and achieve the effect of improving the overall quality

Active Publication Date: 2016-07-13
LANGFANG NIPPON PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time, in the production test, all the test experiments are manually operated, and it is impossible to obtain a more objective and stable experimental result.
Moreover, through the analysis of products with abnormal production, the above tests cannot completely detect product quality fluctuations caused by wrong raw materials in the production process
At the same time, the above method requires a lot of manpower, material resources and long testing time.

Method used

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  • Method measuring inter-batch stability of latex paint by using rotational rheometer
  • Method measuring inter-batch stability of latex paint by using rotational rheometer
  • Method measuring inter-batch stability of latex paint by using rotational rheometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Select a standard latex paint sample A, and use a rotational rheometer to measure the sample at 0.01s -1 , 0.001s -1 、1000s -1 、5000s -1 Viscosity values ​​at 4 preset shear rates within the shear rate range;

[0029] Step 2: According to the experimental method stipulated in the national standard, measure the factory routine inspection performance of the standard latex paint sample: KU viscosity, specific gravity, hiding power (150μm wet film preparation device, 100μm wire rod);

[0030] Step 3: Select 5 batches of latex paint samples B, C, D, E, and F to be tested, and use a rotational rheometer to measure the sample at 0.01s -1 , 0.001s -1 、1000s -1 、5000s -1 Viscosity values ​​at 4 preset shear rates within the shear rate range;

[0031] Step 4: According to the experimental method stipulated in the national standard, measure the factory routine inspection performance of the latex paint samples B, C, D, E, and F to be tested: KU viscosity, specific gr...

Embodiment 2

[0042] Step 1: Select a standard latex paint sample A, and use a rotational rheometer to measure the latex paint sample to be tested at 0.1 to 1000s -1 Viscosity values ​​at 4 preset shear rates within the shear rate range.

[0043] Step: 2: According to the experimental method stipulated in the national standard, measure the factory routine inspection performance of the standard latex paint sample: KU viscosity, specific gravity, hiding power (150μm wet film preparation device, 100μm wire rod)

[0044] Step 3: Select 5 batches of latex paint samples B, C, D, E, and F to be tested, and use a rotational rheometer to measure the temperature of the samples at 0.1S -1 ~1000S -1 Viscosity values ​​at 4 preset shear rates within the shear rate range

[0045] Step 4: According to the experimental method stipulated in the national standard, measure the factory routine inspection performance of the latex paint samples B, C, D, E, and F to be tested: KU viscosity, specific gravity, hidi...

Embodiment 3

[0054] Step 1: Select a standard latex paint sample G (recipe information is shown in Table 5), and use a rotational rheometer to measure the temperature of the sample at 0.1-1000s -1 Viscosity values ​​at 4 preset shear rates within the shear rate range;

[0055] Table 5 Sample G Formulation Information

[0056]

[0057]

[0058] Step 2: According to the experimental method stipulated in the national standard, measure the factory routine inspection performance of the standard latex paint sample G: KU viscosity, specific gravity, hiding power (150 μm wet film preparation device, 100 μm wire rod);

[0059] Step 3: increase the consumption of cellulose 1 in the formula of standard latex paint sample G, and prepare latex paint sample H to be tested; reduce the consumption of cellulose 1 in the formula of standard latex paint sample G, and prepare latex paint sample I to be tested; use Cellulose 2 completely replaced cellulose 1, and the latex paint sample J to be tested wa...

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Abstract

The invention discloses a method measuring inter-batch stability of latex paint by using a rotational rheometer, comprising the following steps: (1), providing the rotational rheometer, a standard latex paint sample and a latex paint sample to be tested; (2), measuring viscosity of the standard latex paint sample at a preset shearing rate by using the rotational rheometer; (3), preparing the homogenously disposed latex paint sample to be detected; (4), measuring viscosity of the latex paint sample to be detected, at a preset shearing rate by using the rotational rheometer; (5), comparing the viscosity measurement of the latex paint sample to be detected with that of the standard latex paint sample, and calculating a deviation of the latex paint sample to be detected with respect to the standard latex paint sample so as to evaluate production stability of sample latex paint.The method enables feeding accuracy in the production process of latex paint products to be accurately reflected, thus improving total quality of paint production.

Description

technical field [0001] The invention relates to a method for measuring the stability between batches of latex paint. More specifically, it relates to a method for determining batch-to-batch stability of latex paints using a rotational rheometer. Background technique [0002] In the production of latex paint, the quality control department usually checks the batch-to-batch stability of the samples produced by measuring the KU viscosity, specific gravity, contrast ratio, etc. Monitoring is of great significance to ensure stable product quality. [0003] Emulsion paint requires a suitable rheology during production, storage, construction and film formation. In the production process of latex paint, a variety of materials need to be input, and the interaction between components is extremely complex. These interactions will make the final product have specific rheology, and the rheology of the final product varies with different formulations. By setting a reasonable experiment...

Claims

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Application Information

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IPC IPC(8): G01N11/00
CPCG01N11/00
Inventor 郭永光张麟敏黄燕林荣儿
Owner LANGFANG NIPPON PAINT
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