消光剂的检测性能及其检测方法
Matting agent is a coating additive that reduces the gloss of the coating and gives it a matting effect. It is usually made of polymer materials, can be compatible with various resin systems, and can achieve good dispersion and stability in coatings. The amount of matting agent added to the coating is usually 1-5% of the total volume, which can be adjusted as needed. 在实际应用中, matting agents are widely used in various furniture, wood products, 建筑材料, auto parts and other fields to achieve different appearance effects and texture requirements.
检测性能
The following are the properties of the matting agent that may need to be tested, and the corresponding detection method:
| 财产 | 检测方法 |
|---|---|
| 粒度分布 | 激光粒度仪, 电子显微镜 |
| 比表面积 | Specific surface area analyzer |
| 化学成分 | 红外光谱, 质谱, 核磁共振 |
| 稳定 | Centrifugal test, evaporation residue test |
| dispersivity | Observe the state of suspension and test viscosity |
| 耐用性 | 暴露测试, 湿热循环试验 |
| 透明度 | Concentration determination, transmission spectrum |
| Film property | Test methods for surface tension, 附着力, 硬度, 灵活性, ETC |
检测方法
粒度分布: The size of the matting agent particle will affect its dispersion performance in the coating and the effect of light scattering, so it is necessary to use a laser particle size meter or electron microscope and other instruments to test the particle size of the matting agent.
比表面积: The specific surface area of the matting agent determines its dispersion performance and extinction effect in the coating, and can be tested using a specific surface area analyzer.
化学成分: The chemical composition of the matting agent directly affects its performance, and it can be detected by infrared spectroscopy, mass spectrometry and nuclear magnetic resonance.
消光剂的检测性能及其检测方法
稳定: The stability of the matting agent will affect its dispersion stability and service life in the coating, which can be tested by centrifugal test and evaporation residue test.
Dispersity: The dispersity of the matting agent affects the transparency and appearance of the coating, which can be tested by observing the state of the suspension and viscosity testing.
耐用性: The matting agent needs to have a certain durability during use, which can be tested by exposure testing and humid heat cycle testing.
透明度: The transparency of the matting agent is a key factor affecting the appearance of the coating and can be tested by methods such as concentration determination and transmission spectroscopy.
Coating properties: The matting agent will affect the surface tension, 附着力, 硬度, flexibility and other aspects of the coating film, which can be evaluated by the corresponding test method.
South tide reminds you: the specific test methods and instruments may vary due to different types of matting agents and application scenarios, and should be selected according to the actual situation