What wavelength of UVLED for curing work?
Uv curing to the corresponding role, but what wavelength uv curing work?We can consider from the following aspects:
1. 265 nm uv led can directly cause prepolymer and thinner, curing, without the need for the initiator, curing speed slower.
2. most of the led initiator absorption spectrum in 200 nm to 400 nm, so in this wavelength range of UV light is on curing.
3. at the same time of UV curing, UV curing materials are accompanied by thermal curing, so near infrared curing effect of UV curing materials.
4. solvent in curing materials don't participate in the curing, ooze a surface, in the process of curing need to near infrared drying.