Method for preparing anti-ultraviolet ageing poly-p-phenylene-benzobisoxazole (PBO) fiber
A benzobisoxazole and anti-ultraviolet aging technology, which is applied in the fields of fiber chemical characteristics, spinning solution preparation, rayon manufacturing, etc., can solve the problems of affecting, restricting the application of PBO fibers, and reducing the mechanical properties of fibers, so as to improve the optical properties. Stabilize performance, improve photostability performance, improve the effect of UV resistance performance
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Embodiment 1
[0021] Polymerize and spin by the method described in Comparative Example 1, the difference is that 0.1149g of anti-ultraviolet agent TM is added to the polymerization system, the fineness of the prepared fiber is 4.8dtex, the tensile strength is 3.3GPa, and the elongation at break The growth rate is 5.1%.
[0022] After the PBO fiber was irradiated with ultraviolet light for 100 hours, the strength retention rate was 65%.
Embodiment 2
[0024] Polymerize and spin by the method described in Comparative Example 1, the difference is that 0.5745g of anti-ultraviolet agent TM is added to the polymerization system, the fineness of the prepared fiber is 4.6dtex, the tensile strength is 3.4GPa, and the elongation at break The growth rate is 4.8%.
[0025] After the PBO fiber was irradiated with ultraviolet light for 100 hours, the strength retention rate was 80%.
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