一种抗紫外RCGT弹力FDY的制备方法
UV-resistant RCGT elastic FDY was prepared by esterification of terephthalic acid with 1,4-butanediol followed by co-condensation with ethylene glycol and the addition of modified titanium dioxide. This solved the problem of decreased fiber elasticity of RCGT elastic FDY under ultraviolet irradiation and achieved a good balance between UV resistance and mechanical properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI XINGSHENG NEW MATERIAL TECH
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing RCGT elastic FDY fibers lose elasticity under ultraviolet radiation, and existing ultraviolet shielding agents cause fiber strength to decrease and bonding strength to drop, which affects the service life of elastic garments as the usage time increases.
After esterification of terephthalic acid with 1,4-butanediol, it is co-condensed with ethylene glycol. Modified titanium dioxide is added, and the modified titanium dioxide is co-condensed with vinyl acetate through hydrolysis of tetrabutyl titanate to form an organic-inorganic hybrid layer, which is uniformly dispersed in the polyester. Combined with the modification process, UV-resistant RCGT elastic FDY is prepared.
The prepared UV-resistant RCGT elastic FDY maintains good mechanical properties while possessing excellent UV resistance. The modified titanium dioxide has good compatibility with polyester, avoiding the strength reduction caused by the addition of titanium dioxide.