As ultraviolet (UV) curing, thermal curing, and polymer crosslinking technologies become increasingly prevalent, initiators serve as the most critical functional component in any curing system-acting as the "igniter" that determines the timing of polymerization initiation, reaction kinetics, and the ultimate performance of the final product. Whether in coatings, inks, adhesives, or high-end applications such as electronic encapsulation, 3D printing, and photoresists, the quality and compatibility of initiators directly influence the success or failure of the end product.
Based on a deep understanding of industry needs and our accumulated technical expertise, our company has built a comprehensive product matrix encompassing photoinitiators, thermal initiators, and complementary crosslinkers. We are committed to delivering one-stop solutions that span from initiation to crosslinking.
In the photoinitiator sector, we have strategically deployed both cationic and free-radical photoinitiator technology platforms. Cationic photoinitiators offer distinctive advantages, including rapid polymerization, insensitivity to oxygen inhibition, and low shrinkage-making them particularly suitable for epoxy- and vinyl ether-based systems. They excel in applications such as electronic encapsulation materials and thick-film curing. Free-radical photoinitiators, on the other hand, are the most widely adopted type in photopolymerization systems today, owing to their fast initiation speed, broad variety, and cost-effectiveness. The two product families can be used independently or in synergistic combinations to meet the diverse requirements of different formulation systems.
In the thermal initiator category, we offer products that decompose upon heating to generate free radicals or cationic active species. These are suitable for the polymerization of vinyl monomers, crosslinking curing of unsaturated polyesters, and polymer crosslinking reactions. Additionally, thermal initiators serve as an effective supplement to UV-curing systems, enabling "dual curing" (photo-thermal) in shadowed areas or thick-coating scenarios where light cannot fully penetrate.
Beyond our core initiator products, we also provide a range of complementary crosslinkers and stabilizers. Among them, our blocked imidazole curing agents employ a unique blocking technology that temporarily deactivates the reactive imidazole groups, ensuring a shelf life of over six months at room temperature. They release active components only when heated to a specific temperature, enabling rapid crosslinking curing of epoxy resins. Our thiol curing agents, containing multiple thiol (–SH) functional groups, undergo rapid crosslinking reactions with epoxy resins, polyurethanes, and other systems, achieving room-temperature curing with fast speed, strong adhesion, and excellent chemical resistance. Our stabilizers ensure consistent product quality during storage and application, providing all-round quality assurance for our customers.
From photo-initiation to thermal initiation, from cationic to free-radical systems, from crosslinking curing to stable storage-our product portfolio covers every critical link in the curing technology chain. In the following installments, we will provide you with a detailed technical overview, application insights, and selection guidelines for each product category. Stay tuned.