List of key properties and testing methods of acrylic coatings
List of key properties and testing methods of acrylic coatings
Acrylic paint is acrylic acid and its copolymer as the main raw material, adding additives and solvents made of a kind of paint. Acrylic coatings have excellent weather resistance, chemical corrosion resistance, strong adhesion and other characteristics, widely used in construction, automobile, shipping, furniture, electronics, machinery and other industries in metal, plastic, glass, ceramics and other materials surface corrosion, decoration, coating and other fields.
| Name of performance | Instruments and equipment used | Step of detection |
|---|---|---|
| Coating performance at room temperature | Coating thickness meter, scratch resistance testing machine | 1. Measure the thickness of the coating with a coating thickness meter; 2. Use scratch resistance testing machine to scratch test the coating |
| Hardness of hardness | Pencil hardness tester, thickness gauge | 1. Use a pencil hardness tester to test the hardness of the coated surface; 2. Measure the thickness of the coating with a coating thickness meter |
| Resistance to chemical corrosion | Corrosion test box, microscope | 1. Place the coating sample in the corrosion test chamber and expose it to chemical reagents; 2. Observe the changes of the coated samples and observe the surface morphology using a microscope |
| Resistance to weather | Constant temperature and humidity box, artificial climate aging box, microscope | 1. Place the coating sample in a constant temperature and humidity box or an artificial climate aging box to simulate the climate change of the natural environment; 2. Regularly observe the changes of the coated samples and observe the surface morphology using a microscope |
| Force of adhesion | Peel strength tester | 1. Paste the coating sample on the tested material; 2. Use the peeling strength testing machine to conduct peeling experiments and test the adhesion of the coating |
| Environmental friendliness | Volatile organic compounds tester | 1. Place the coating sample in the volatile organic compounds tester; 2. Measure the content of organic matter volatilized by the coating sample |
| Density of density | Density meter | 1. Place the paint sample in the densitometer; 2. Measure the density of the paint sample |
| pH value | PH meter | 1. Place the paint sample in the pH meter; 2. Measure the pH value of the paint sample |
| Performance of construction | Flowmeter, drying time tester | 1. Use a rheometer to test the fluidity of the coating; 2. Use the drying time tester to test the drying time of the coating |
| Antibacterial property | Antibacterial property tester | 1. Place the coating sample in the antibacterial property tester; 2. Test the inhibition rate and sterilization rate of the coating on bacteria |
List of key properties and testing methods of acrylic coatings
For each test, the specific steps will be different, and the corresponding test standards or methods need to be referred to. Some commonly used standards or methods include: ASTM, ISO, GB/T, etc. Attention should be paid to the accuracy and repeatability of the instrument, as well as the preparation and handling of the sample during the test.