T-RT2018 UV Secondary Coating Resin is a high-performance ultraviolet-curable material specifically developed for secondary coating processes of optical fibers. It utilizes unique nano-enhancement technology to optimize both the mechanical protection and optical performance of the coating High-Speed Production Material layer. This category of fiber coating material offers excellent rheological properties and rapid curing speed, achieving second-level curing within the 250-450nm UV spectrum. It serves as a key chemical material in fiber manufacturing for protecting bare fiber surfaces and enhancing mechanical strength.
Regarding material performance, T-RT2018 demonstrates three technical advantages: First, its post-cure modulus is adjustable within 0.5-1.5 GPa, with elongation exceeding 80%, effectively buffering microbending loss. Second, its refractive index is tunable between 1.48-1.52, forming good optical matching with fiber cladding to suppress interface reflection. Third, it exhibits excellent resistance to damp heat aging, maintaining over 90% of its properties after 1000 hours at 85°C/85% RH, meeting Telcordia GR-20-CORE standards. Its curing shrinkage is less than 2%, with a coefficient of thermal expansion (CTE) that matches quartz fibers well, effectively avoiding additional stress caused by temperature variations.
This type of UV-curable material is primarily used for secondary coating of telecommunication fibers such as G.652.D and G.657.A2, as well as precision coating of specialty fibers like polarization-maintaining fibers and sensing fibers. Actual production data shows its curing speed reaches 300 m/min, with coating thickness uniformity controlled within ±1μm, demonstrating good compatibility with various fiber inks. Compared to traditional thermal-cure coatings, the UV-curable version reduces energy consumption by over 60% and VOC emissions by 90%, aligning with green manufacturing development trends.
With the rapid development of 5G communication and Internet of Things (IoT) technologies, new-generation intelligent coating resins are beginning to integrate self-healing and sensing functions. Through coordination between microcapsule technology and intelligent production systems, damage self-repair and strain self-sensing of coating layers are achieved. Within future-oriented intelligent fiber manufacturing systems, such functional materials are transforming optical fibers from passive transmission media into active functional components.
Keywords:
T-RT2018 UV Secondary Coating Resin
Fiber Coating Material Manufacturing