Ultraviolet radiation can play a corresponding role in curing, but which wavelength will play a role in curing? We can consider the following aspects:

 

 

 

1 and 265 nmUV light can directly initiate the curing of prepolymer and diluent without initiator, but the curing speed is slow.

 

 

 

2. Most photoinitiators have absorption spectra ranging from 200 to 400 nm, so UV light plays an important role in curing in this wavelength range.

 

 

 

3. UV curing materials are cured by heat at the same time of UV curing, so near infrared ray plays a role in the curing of UV curing materials.

 

 

 

4. The solvents in the curing materials do not participate in curing, and the surface will exude during the curing process, requiring near infrared drying.

 

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