Quais propriedades devem ser testadas para emulsões flexíveis? Quais são os métodos de detecção?
A emulsão flexível é um tipo de emulsão com polímero flexível como componente principal. It is different from the traditional emulsion, it has excellent flexibility, scratch resistance, resistência à água, durabilidade, elasticity and other characteristics. Common flexible polymers include acrylate copolymers, neoprene, silicone rubber, polyurethane, etc.. Flexible emulsion is widely used in plastics, materiais de construção, têxtil, eletrônicos, automotivo, medical and other fields, can be used to prepare a variety of high-performance materials, revestimentos, adesivos, sealing materials, elastomers, etc..
Desempenho de detecção
The following are the common performance parameters to be tested for flexible emulsions and their brief descriptions:
| Parâmetros de desempenho | Uma breve descrição |
|---|---|
| Conteúdo sólido | Nonvolatile components in the paint as a percentage of the total weight |
| viscosidade | The viscosity of the coating has an important impact on the coating effect and construction performance |
| Distribuição de tamanho de partícula | Size distribution of particles in a flexible emulsion |
| valor do PH | The pH of the flexible emulsion has an important influence on the stability and performance of the coating |
| Força de adesão | Adhesion between coating and substrate surface |
| durabilidade | The weather resistance, wear resistance and chemical resistance of the coating have an important impact on the service life and performance of the coating |
| elasticity | The elastic and deformable ability of coatings is of great significance for flexible materials and elastomers |
| Resistência à tracção | The maximum capacity of the coating under tensile force |
| Scratch resistance | The ability of the coated surface to resist scratching and abrasion |
| Resistência à água | À prova d'água, moisture-proof and penetration-resistant properties of the coating |
Quais propriedades devem ser testadas para emulsões flexíveis? Quais são os métodos de detecção?
Método de detecção
The following is a brief description of the test methods for common performance parameters of flexible emulsions:
Conteúdo sólido: The coating sample was dried to a constant weight at about 105 ° C, e a razão entre a massa de substâncias não voláteis e a massa total da amostra foi calculada.
Viscosidade: Use equipment such as rotational viscometer or dioptometer to measure the viscosity of the paint.
Distribuição de tamanho de partícula: Devices such as particle size analyzers are used to measure the size distribution of particles in flexible emulsions.
valor do PH: Use PH meter and other equipment to measure the pH of the paint to evaluate the stability and performance of the paint.
Adesão: Use tensile testing machine, shear testing machine and other equipment to measure the adhesion of the coating and the substrate surface.
Durabilidade: avaliar a resistência às intempéries, wear resistance and chemical resistance of the coating by simulating the exposure and wear tests in the actual use environment.
Elasticidade: Use material testing machine and other equipment to measure the elasticity and deformation ability of the coating.
Quais propriedades devem ser testadas para emulsões flexíveis? Quais são os métodos de detecção?
Resistência à tracção: Use equipment such as tensile testing machine to measure the maximum capacity of the coating under tensile force.
Scratch resistance: Use equipment such as a scratch resistance meter to simulate the scratch and wear in actual use, and evaluate the scratch resistance of the coating surface.
Resistência à água: Use water immersion tester and other equipment to evaluate the waterproof, moisture-proof and permeability resistance of the coating.
Nós lembramos você: different performance parameters may require different test methods and equipment, e pode haver alguns padrões e especificações da indústria, for flexible emulsion performance testing, but also should be selected according to the actual needs of the corresponding test methods and standards. Ao mesmo tempo, the test conditions and standardized operations need to be strictly controlled during the experiment to ensure the accuracy and reliability of the test.