Desempenho de detecção do material de base de revestimento e método de detecção específico do mesmo

O material de base do revestimento refere-se ao material usado como base e transportador no revestimento, incluindo resina, solvente, enchimento, additive, etc.. Coating base material is the main source of coating properties, which has an important influence on the quality and properties of coatings. sob circunstâncias normais, the coating substrate needs to have certain adhesion, fluidez, durabilidade, chemical stability and other characteristics to ensure the effect and durability of the coating in the application process. Common coating substrates include organic solvents, water-based resins, solvent-based resins, powder coatings and so on.

Desempenho de detecção
The performance testing items of coating base material vary according to the specific type of base material, and generally include the following aspects:

Propriedades físicas: densidade, viscosidade, fluidez, drying time, etc..

Chemical properties: chemical stability, resistência a ácidos e álcalis, resistência à água, etc..

Mechanical properties: dureza, força, elastic modulus, etc..

Thermal performance: resistência a altas temperaturas, thermal conductivity, etc..

Propriedades ópticas: transparência, reflectivity, etc..

Electrical properties: dielectric constant, conductivity, etc..

The following is a brief description of the test items and methods for common performance parameters of coating base materials:

Desempenho de detecção do material de base de revestimento e método de detecção específico do mesmo

Performance parameterItem de testeMétodo de detecção
Physical propertyPhysical propertyDensitometer measurement
viscosidadeMeasurement using equipment such as a viscometer
mobilityIt is judged by observing the flow of the sample on the inclined plate
Tempo de secagemAfter drying the sample, the drying time was observed
Chemical propertyChemical stabilityThe sample is exposed to a specific environment to observe its chemical stability
Acid-base resistanceExposed to acid and alkali environment, observe its acid and alkali resistance
Resistência à águaSoak the sample in water to observe its water resistance
Mechanical propertydurezaUse a hardness tester and other equipment to measure
intensityThrough the sample stretching, compression and other tests obtained
Modulus of elasticityUse the elastic modulus meter and other equipment to measure
Thermal performanceHigh temperature resistance The sample is exposed to a high temperature environment to observe its high temperature resistance
Thermal conductivityUse thermal conductivity meter and other equipment to measure
Optical propertytransparênciaMeasurement using equipment such as a light transmitter
reflectanceMeasurement using equipment such as reflectance meter
Electrical propertyDielectric constantMeasurement using equipment such as a dielectric constant tester
Electric conductivityMeasurement using equipment such as conductivity meter

Método de detecção
The performance testing method of coating base material varies according to the type and performance parameters of the base material. The following takes several common performance parameters as an example to briefly introduce the testing method of coating base material:

Densidade: The density meter is usually used for measurement, loading the sample into the density meter and reading the density value on the display.

Viscosidade: Can be measured using a variety of methods, of which the commonly used is the rotary viscometer, you can also use the direct drawing method, drip method, etc..

Chemical stability: The sample is exposed to a specific environment, such as high temperature, high humidity, acid and alkali environment exposure test, observe the changes of the sample in different environments, como mudança de cor, physical property change, etc..

Desempenho de detecção do material de base de revestimento e método de detecção específico do mesmo

Dureza: Use a hardness tester or Rockwell hardness tester to measure.

Strength: Using equipment such as tensile testing machine or compression testing machine for measurement, the sample is placed in the equipment, the corresponding force is applied, and the change of the sample under different forces is measured to obtain its strength value.

High temperature resistance: The sample is exposed to a high temperature environment, such as exposure in a constant temperature oven for a certain time, and the changes of the sample are observed, such as weight changes, appearance changes, etc..

Transparência: The transparency of the sample is obtained by using a device such as a light transmitter, where the sample is placed in a light transmitter and the intensity of light passing through the sample is measured.

Electrical properties: The use of dielectric constant tester, conductivity meter and other equipment for measurement, the sample is placed in the equipment, electrical properties test, so as to obtain the corresponding performance parameter values.

Maré Norte e Sul lembra você: the performance testing method of the coating base material varies according to the type and performance parameters of the base material, e pode haver alguns padrões e especificações da indústria, for the performance testing of the coating base material, you should also choose the corresponding testing method according to the actual needs. Ao mesmo tempo, in order to ensure the accuracy of the test results, the test equipment should be calibrated and maintained before the test.

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