Due to the advantages of fast curing, energy saving and environmental protection, UV curing products are widely used in many fields, and were first mainly used in the field of wood coating. In recent years, with the development of new initiators, active diluents and photosensitive oligomers, the application of UV curable coatings has gradually expanded to the fields of paper, plastics, metals, fabrics, automotive components and so on. The following will briefly introduce the application of several UV Curing Technologies in different fields.
UV curing 3D printing
UV curable 3D printing is one of the rapid prototyping technologies with the highest printing accuracy and commercialization. It has many advantages, such as low energy consumption, low cost, high precision, smooth surface and good repeatability. It has been widely used in aerospace, automotive, mold manufacturing, jewelry design, medical and other fields.
For example, by printing the rocket engine prototype with complex structure and analyzing the flow mode of gas, it is helpful to design the rocket engine with more compact structure and higher combustion efficiency, which can effectively improve the R & D efficiency of complex parts and shorten the automobile R & D cycle; You can also print out the mold or reverse mold directly, so as to make the mold quickly and so on.
Stereolithography (SLA), digital projection (DLP), 3D ink-jet forming (3DP), continuous liquid level growth (clip) and other technologies have been developed in the light curing 3D printing technology [3]. As its printing material, photo curable photosensitive resin for 3D printing has also made great progress, and is developing towards functionalization according to the needs of application
Electronic packaging UV curing products
The innovation of packaging technology promotes the transition of packaging materials from metal packaging and ceramic packaging to plastic packaging. Epoxy resin is the most widely used in plastic packaging. Excellent mechanical properties, heat and moisture resistance are the premise of high-quality packaging. The fundamental problem that determines the performance of epoxy resin is not only the structure of the main body of epoxy resin, but also the influence of curing agent.
Compared with the thermal curing method adopted by conventional epoxy resin, cationic UV curing not only has better chemical storage stability of photoinitiator, but also faster curing speed of the system. The curing can be completed within tens of seconds with extremely high efficiency. There is no oxygen polymerization inhibition, and it can be deeply cured. These advantages increasingly highlight the importance of cationic UV curing technology in the field of electronic packaging.
With the rapid development of semiconductor technology, electronic components tend to be highly integrated and miniaturized. Light weight, high strength, good heat resistance and excellent dielectric properties will be the development trend of new high-performance epoxy packaging materials. UV curing technology will play a more important role in the development of electronic packaging industry.
Printing ink
In the field of packaging and printing, flexographic printing technology is used more and more, accounting for an increasing proportion. It has become the mainstream technology of printing and packaging, and is the inevitable trend of future development.
There are many types of flexo printing inks, mainly including the following categories: water-based inks, solvent based inks and UV curing (UV) inks. Solvent based inks are mainly used for non absorbent plastic film printing; Water based ink is mainly used in newspaper, corrugated board, cardboard and other printing materials; UV ink has a wide range of uses. It has a good printing effect in plastic film, paper, metal foil and other materials .
UV ink has the characteristics of environmental friendliness, high efficiency, good printing quality and strong adaptability. It is a very popular and highly concerned new environmental protection ink at present, and has a very good development prospect.
Flexographic UV ink is widely used in packaging and printing. Flexo UV ink has the following advantages :
(1) Flexographic UV ink has no solvent discharge, safe and reliable use, high melting point and no pollution, so it is suitable for making food, medicine, beverage and other packages with high requirements for safe, non-toxic packaging materials.
(2) During printing, the physical properties of the ink remain unchanged, there is no volatile solvent, the viscosity remains unchanged, and the printing plate will not be damaged, resulting in plate pasting, plate stacking and other phenomena. When printing with high viscosity ink, the printing effect is still good.
(3) The ink drying speed is fast and the product printing efficiency is high. It can be widely used in various printing methods, such as plastic, paper, film and other substrates.
With the development of new oligomer structure, active diluent and initiator, the future application scope of UV curing products is immeasurable, and the market development space is infinite.
Microspectrum has rich analysis and research experience in the field of UV curing products. It has built a powerful spectrogram database and has complete large-scale analytical instruments. Through proprietary sample pretreatment methods and instrumental analysis methods, it can determine the synthetic monomers and structures of various oligomers, a variety of active diluents, photoinitiators and trace additives, etc. At the same time, microspectrum closely follows the upgrading of new products in the market, and conducts project research on new UV cured products in many fields. It can compare and analyze the excellence of products, help enterprises solve the difficulties and blind spots encountered in the product development process, shorten the R & D cycle and improve product performance
Post time: Aug-02-2022