Photocurable resin is a polymer material whose curing process is catalyzed by a photoinitiator under ultraviolet or visible light irradiation. Photocurable resins are usually one-component materials, that is, they only need to be coated on the substrate, and the coating can be cured within seconds or minutes by irradiation of ultraviolet light or visible light. Light-curing resin has excellent heat resistance, chemical resistance, wear resistance and aging resistance, and has the advantages of low cost and convenient use. It is widely used in coating and manufacturing in 3D printing, electronics, optics, printing and other fields in process.
performance testing
| performance | Test items |
|---|---|
| Curing degree | Degree of Coating Curing |
| viscosity | paint viscosity |
| hardness | coating hardness |
| wear resistance | Anti-wear performance |
| chemical resistance | Acid and alkali resistance, solvent resistance, etc. |
| transparency | coating transparency |
| density | Density of paint |
| heat resistance | High temperature performance |
| weather resistance | UV resistance, corrosion resistance, etc. |
| other | Such as antistatic, antibacterial, etc. |
The results of these test items can help evaluate the quality and suitability of light-curable resins, and how they will perform in practical applications. The test methods and equipment vary according to the specific types of photocurable resins and test items.
Detection method
Curing degree: use microscope, infrared spectrometer and other equipment to test the degree of curing of the coating.
Viscosity: Use an instrument such as a viscometer to measure the viscosity of the paint.
Hardness: Use Rockwell Hardness Tester, Barcol Hardness Tester and other equipment to test the hardness of the coating.
Abrasion resistance: Use grinding wheel abrasion test, pencil hardness test and other methods to test the anti-abrasion performance of the coating.
Chemical resistance: Use acidity meter, alkalinity meter, solvent immersion and other methods to test the acid and alkali resistance and solvent resistance of the coating.
Transparency: Test the transparency of the coating with light transmissIon Meter, light wavelength meter and other equipment.
Density: Measure the density of the paint using an instrument such as a densitometer.
Heat resistance: test the high temperature performance of the coating through oven high temperature test, constant temperature and humidity test and other methods.
Weather resistance: test the UV resistance and corrosion resistance of the coating through artificial accelerated aging test or natural climate exposure.
Others: According to the specific type of photocurable resin and testing items, select appropriate testing methods and equipment for testing, such as testing antistatic properties, antibacterial properties, etc.
