Principais propriedades e métodos de teste de revestimentos impermeáveis de poliuretano
O revestimento impermeável de poliuretano é um tipo de resina de poliuretano como componente principal, adicionando uma variedade de enchimentos, diluents and other substances made of waterproof coating, has excellent weather resistance, resistência ao desgaste, corrosion resistance and chemical resistance. Polyurethane waterproof coating is widely used in building roof, basement, ground, pool, storage tank and other waterproof engineering and railway, highway, bridge, tunnel and other transportation infrastructure waterproof and anti-corrosion field.
Test performance and instrumentation
The following are the key properties of polyurethane waterproof coating to be tested and the instruments and equipment to be used:
Principais propriedades e métodos de teste de revestimentos impermeáveis de poliuretano
Performance factor instrumentation
| Performance factor | Instrument and equipment |
| Desempenho de construção | Construction performance testing equipment |
| Resistência às intempéries | Spectral radiation test chamber, xenon lamp aging test chamber |
| Resistência à água | Spectral radiation test chamber, xenon lamp aging test chamber |
| Força de ligação | Grid testing machine, stripping testing machine |
| Impact resistance | Impact testing machine |
| Resistência ao desgaste | Wear testing machine |
| Color and gloss | Color difference meter, medidor de brilho |
Principais propriedades e métodos de teste de revestimentos impermeáveis de poliuretano
Procedure of detection method
The following is the performance of polyurethane waterproof coating to be tested and its testing steps:
Desempenho de construção: Use construction performance testing equipment to test the fluidity, brushability, drying time and other construction performance of the coating, and record the test results.
Weatherability: Test the weatherability of the coating using a xenon lamp aging chamber or a spectral radiation chamber, and record the test results.
Resistência à água: Use water penetration test equipment and soaking test equipment to test the water resistance of the coating, and record the test results.
Força de ligação: The coating adhesion to the substrate was tested using the delimiting tester and the stripping tester, and the test results were recorded.
Impact resistance: The impact testing machine is used to test the impact resistance of the coating, and the test results are recorded.
Resistência ao desgaste: Wear testing machine is used to test the wear resistance of the coating, and the test results are recorded.
Color and luster: Test with color difference meter and luster meter under standard light source and record the test results.
Para alguns revestimentos especiais, it may be necessary to use other instruments and equipment for testing, and the specific operation steps will be different.