In the ultraviolet curing system, adding THEIC (1,3,5-Tris(2-hydroxyethyl)cyanuric acid), which accounts for only 5% to 8% of the total mass of the formula, can increase the final hardness of the cured film by more than 30%, shorten the curing time to within 2 seconds, and improve efficiency by up to 40%. Research shows that the three active hydroxyethyl functional groups in its molecule can effectively increase the crosslinking density, making the pencil hardness of the coating reach above 3H, while reducing energy consumption by 15%. For instance, in 2023, a leading automotive coatings manufacturer successfully increased the speed of its UV curing production line from 15 meters per minute to 22 meters per minute by introducing high-purity THEIC, raising its annual output by approximately 50,000 liters and directly generating an additional revenue of over 1.2 million US dollars.
From the perspective of material performance, the introduction of THEIC can increase the glass transition temperature (Tg) of the cured product by approximately 20°C to above 85°C, and the heat distortion temperature can be raised by more than 25%, ensuring that the product’s lifespan is extended to over five years in high-temperature and high-humidity environments. An application test for electronic device packaging shows that after using the formula containing THEIC, the adhesion retention rate of the coating exceeded 95% in the double 85 test at 85°C temperature and 85% relative humidity, while the adhesion of the traditional formula could decrease by up to 30% after 500 hours. This outstanding weather resistance has reduced the failure rate of the product by 50% in harsh environments.
In terms of optimizing production costs, THEIC’s high reactivity allows for a 20% reduction in the amount of photoinitiators used in the formula, directly lowering raw material costs by approximately 8%. At the same time, it reduces the ultraviolet light irradiation intensity required for curing from 300mW/cm² to 240mW/cm², achieving remarkable energy-saving effects. Market analysis indicates that enterprises adopting THEIC’s optimized formula can reduce their overall production costs by 10% to 15% and shorten the payback period to within 18 months. A typical case is that a large printing enterprise, through technological innovation, has controlled the curing defect rate of UV ink from the previous 3% to below 0.5%, reducing quality losses by approximately 500,000 yuan annually.
Looking ahead to future trends, as VOC emission regulations become stricter, THEIC’s application in low-viscosity waterborne UV resins is expanding at an annual growth rate of 12%. Its unique structure endows the system with excellent leveling properties, reducing surface defects of the coating by over 60% and keeping the gloss fluctuation range within ±2 GU. Technological innovation, such as a patent technology demonstration in 2024, successfully increased the bio-based content of curing materials to over 50% through the synergistic effect of THEIC and bio-based monomers, while maintaining a 100% conversion rate. This provides a key solution for sustainable development and is expected to drive an increase of 3 billion US dollars in the related market share within the next five years.