With the rapid development of UV curing technology, oxygen inhibition has always been a core challenge for industries such as coatings, inks, adhesives and nail polish. The reaction between oxygen molecules and free radicals can cause problems such as surface stickiness and incomplete curing, which directly affect product performance and efficiency. Thiol-30L UV Curing Oxygen Scavenger Additives (UV curing antioxidant) launched by Shenzhen U-Sunny provides the industry with an efficient solution through innovative thiol chemistry and antioxidant inhibition technology, while meeting environmental protection and high performance requirements.
1. Antioxidant and polymerization inhibition mechanism of Thiol-30L
Thiol-30L is designed based on functional polythiol. The highly active thiol (-SH) in its molecule can quickly combine with free radicals, shorten the life of free radicals, and reduce the contact time with oxygen, thereby significantly reducing the oxygen inhibition effect. Compared with traditional antioxidants, its unique advantages are:
Dual-path synergistic curing: combining free radical polymerization and thiol-ene click chemistry to improve curing efficiency, and achieve deep curing even in thin layers or high oxygen environments;
Autocatalytic system: reduces dependence on external photoinitiators, avoids small molecule residues, and meets the biocompatibility requirements of food packaging and medical-grade materials;
Low odor and high purity: refined through secondary distillation process, VOC content is less than 0.5%, in line with EU REACH and US UL certification, suitable for indoor scenes.
II. Multi-field application and performance improvement
1. High-performance coatings and inks
Adding Thiol-30L to UV coatings can increase the curing speed by more than 30%, the surface hardness reaches 3H, and the surface sticky residue is reduced by 60%. The synergistic effect of fumed silica (such as thickening and thixotropy) further optimizes the wear resistance and leveling of the coating, which is suitable for automotive metal paint and furniture matte coating1. In the field of inks, its compatibility with water-based resins enhances printing adhesion, especially for safety-sensitive scenarios such as food packaging.
2. Fast-curing adhesives
Thiol-30L achieves second-level curing through thiol-ene reaction, and the bonding strength is 50% higher than that of traditional epoxy resins, and the temperature range is -40℃ to 120℃. Its low toxicity meets the biocompatibility requirements of medical-grade adhesives, such as precision assembly and sealing of medical devices.
3. Innovation breakthrough of nail polish glue
Nail polish glue has extremely high requirements for low sensitivity and fast curing. The addition of Thiol-30L increases UV curing efficiency by 40% and reduces odor emissions by 90%. Combined with fumed silica anti-sedimentation technology, it can solve the problem of sequin stratification and extend the life of nail art to more than 21 days.
Shenzhen U-Sunny relies on the ISO 9001 quality management system and uses a secondary distillation process to ensure that the purity of Thiol-30L is ≥98%, and the molecular weight distribution (Mw <2000 g/mol) is precisely controlled to avoid impurities interfering with terminal performance. The company provides customized formulation services to support customers' full-process needs from laboratory research and development to mass production, and optimizes the proportion of additives for different industry pain points (such as 0.5%-2.5% of nanomaterials added in coatings).
Shenzhen U-Sunny's Thiol-30L UV Curing Oxygen Scavenger Additives, with technological innovation as the core, solves the problem of oxygen inhibition in the light-curing industry, and is both efficient and environmentally friendly. Whether it is to improve the durability of industrial coatings or optimize the consumer-grade nail art experience, this product has demonstrated excellent market competitiveness. If you need technical parameters or customized services, please contact the Shenzhen U-Sunny team!