A coating composition containing a radiation-curable component, a photoinitiator, and a UV absorber is described. The coating composition may be applied to an optical fiber and cured to form a coating. The UV absorber provides a protective function by inhibiting unintended curing of the coating that may occur upon exposure of the fiber to UV light during fiber processing. The spectral overlap of the photoinitiator and UV absorber is minimized to permit efficient photoinitiation of the curing reaction over one or more wavelengths. Photoinitiation may be excited by an LED source with a peak emission wavelength in the range from 360 nm-410 nm.
本文描述了一种含有辐射固化成分、光
引发剂和
紫外线吸收剂的涂层组合物。该涂层组合物可涂在光纤上并固化形成涂层。
紫外线吸收剂具有保护功能,可抑制光纤在加工过程中暴露于紫外线时可能发生的涂层意外固化。光
引发剂和
紫外线吸收剂的光谱重叠最小,以便在一个或多个波长上有效地进行光引发固化反应。光引发可由 LED 光源激发,其峰值发射波长范围为 360 nm-410 nm。