Ultraviolet (UV) is invisible to the naked eye, and it is a section of electromagnetic radiation other than visible light, and its wavelength is in the range of 10~400nm.
The curing principle of shadowless adhesive is that the photoinitiator (or photosensitizer) in ultraviolet curing material absorbs ultraviolet light under the irradiation of ultraviolet light, generates active free radicals or cations, initiates monomer polymerization and cross-linking chemical reactions, and makes the adhesive change from liquid to solid in a few seconds.
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Product characteristics
Universal products have a wide range of applications, and the bonding between plastics and various materials has excellent bonding effect;
The adhesive strength is high, the plastic body can be broken without degumming through the failure test, and the UV glue can be positioned for several seconds, reaching the highest strength in one minute, which greatly improves the working efficiency; It is completely transparent after curing, and the product does not turn yellow or white for a long time;
Compared with the traditional quick-drying adhesive, it has the advantages of environmental resistance, no whitening and good flexibility. The destruction experiment of P+R bond (ink or electroplating bond) can tear the silicone skin; Excellent resistance to low temperature, high temperature and high humidity; It can be applied by automatic mechanical dispensing or screen printing, which is convenient to operate.