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The curing energy of UV adhesive refers to the conditions required for the curing process of UV adhesive, which is a parameter representing the intensity of ultraviolet radiation. The unit is mJ/cm2, and it can also be expressed by multiplying mW/cm2 by the irradiation time. mJ/cm2 is read as 1 millijoule/square centimeter, and mW/cm2 is read as 1 milliwatt/1 square millimeter.

The main source of energy for UV glue curing is provided by the light energy generated by UV irradiation. Generally, UV glue uses UV mercury lamps and UVLED curing lamps. For the selection of curing equipment, it is necessary to make a reasonable choice based on factors such as the curing wavelength, curing speed, application thickness, application area, and characteristics of the bonding material of UV adhesive.

During the use of UV glue, excessive or insufficient UV energy from the photoinitiator in the UV glue can lead to a decrease in the application function after curing. Excessive supply of curing energy can result in negative effects of excessive curing, such as bursting, wrinkling, etc. The lack of curing energy directly affects the inability to completely cure.