Key katangian at mga pamamaraan ng pagsubok ng polyurethane waterproof coatings
Polyurethane hindi tinatagusan ng tubig patong ay isang uri ng polyurethane dagta bilang pangunahing bahagi, pagdaragdag ng iba't ibang mga fillers, diluents and other substances made of waterproof coating, has excellent weather resistance, wear resistance, 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 na, 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:
Key katangian at mga pamamaraan ng pagsubok ng polyurethane waterproof coatings
Performance factor instrumentation
| Performance factor | Instrument and equipment |
| Construction performance | Construction performance testing equipment |
| Weather resistance | Spectral radiation test chamber, xenon lamp aging test chamber |
| Water resistance | Spectral radiation test chamber, xenon lamp aging test chamber |
| Bond strength | Grid testing machine, stripping testing machine |
| Epekto ng paglaban | Impact testing machine |
| Paglaban sa pagsusuot | Wear testing machine |
| Color and gloss | Color difference meter, gloss meter |
Key katangian at mga pamamaraan ng pagsubok ng polyurethane waterproof coatings
Procedure of detection method
The following is the performance of polyurethane waterproof coating to be tested and its testing steps:
Construction performance: 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.
Water resistance: Use water penetration test equipment and soaking test equipment to test the water resistance of the coating, and record the test results.
Bond strength: The coating adhesion to the substrate was tested using the delimiting tester and the stripping tester, and the test results were recorded.
Epekto ng paglaban: The impact testing machine is used to test the impact resistance of the coating, and the test results are recorded.
Paglaban sa pagsusuot: 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.
For some special coatings, it may be necessary to use other instruments and equipment for testing, and the specific operation steps will be different.