Company News

Several Factors Affecting UVLED Deep Light Curing

       The UV initiator is irradiated with a photoinitiator to produce a free radical or ion which undergoes a crosslinking reaction with the double bonds in the prepolymer or the unsaturated monomer to form a monomeric gene, and these monomers The gene starts the chain reaction to produce a polymer solid from the molecule, a complete curing process ends, and the following talks about several factors that affect its deep cure.

       1. Effect of UVLED energy

Deep curing of ultraviolet radiation, the main condition is that molecules must absorb enough energy after the light quantum to stimulate his back into the free radicals or ions, so that unsaturated organic matter polymerization, grafting, crosslinking and other chemical reactions, to achieve the purpose of curing The Wherein the UVLED energy of the photoinitiator in the UV coating supplied exceeds or lacks the energy required. The light-emitting agent needs UVLED cold light source energy, such as the blind excess supply, this approach not only a waste of energy, but also cause excessive curing negative effects, such as burst polymerization, anti-curing reaction. UVLED energy is insufficient, the UVLED energy must be moderate, that can not be excessive can not be enough, so as not to cause complete curing.

       2. Effect of UV coating thickness

UV coating thickness of the effect of UV curing plays a key role in the coating is too thick, in the same power light irradiation time is relatively long, on the one hand the impact of UV coating drying, on the other hand will make the substrate surface The temperature is too high, resulting in deformation of the substrate, the coating is too thin, will lead to poor product surface gloss, and other UV coating thickness of the paint hue, temperature, curing speed, substrate surface under different conditions to be properly deployed.

       3. The effect of curing distance

UV lamp according to the different curing substrate, the general distance of 10-15MM or so, curing distance must be with the substrate coating, UVLED lamp irradiation power and other appropriate adjustments.

       4. UV light curing speed

According to the substrate, paint, curing distance, etc., appropriate to adjust the equipment curing speed, curing speed too fast, the substrate surface UV coating sticky or dry surface and dry, running slowly, the substrate surface will be aging.

       5. The impact of the working environment

UV coating due to temperature changes in the viscosity of a large time, should be adjusted room temperature, generally 15-25 degrees more appropriate and pay attention to curing can not be exposed to direct sunlight.




Hits:  UpdateTime:2017-10-13 17:09:19  【Printing】  【Close


Contact Us

Address:Address:Office/ Factory address: 2/F, Tower B, Sanhe international science and technology Building, Lai Wu Shan New Village ,Da Lang Road,Long Hua District, ShenZhen, Guang Dong Province, China.
Tel:+86-755- 27381112          
Mobiled Phone:
    Mandi:   +86-18924589491
   Jerry:     +86-15112366475 
    Duke:     +86-13192028497
   HTLD led uv curing-Mandi
   HTLD led uv curing-Jerry  
   HTLD led uv curing-Duke