一种阻燃剂及其阻燃氨纶的制备方法
By using in-situ polymerization technology and flame retardants with specific structures, the flammability problem of spandex has been solved, resulting in highly efficient flame-retardant and washable spandex fibers, thus enhancing their application potential in flame-retardant fabrics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIANYUNGANG DUZHONG NEW AOSHEN SPANDEX
- Filing Date
- 2024-12-18
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, spandex has a low limiting oxygen index and a fast burning speed, which affects the performance of flame retardant fabrics. In particular, when blended with other flame retardant fibers, the anti-dripping effect is poor after adding a large amount of flame retardant.
By employing an in-situ polymerization process, flame retardants containing CN six-membered rings or NP six-membered rings, siloxanes, and hydroxyl groups are used to prepare flame-retardant polyesters or polyether-type flame-retardant spandex through polycondensation reactions with diacids and diols, achieving high efficiency enhancement with a small amount of flame retardant.
It significantly improves the oxygen index of spandex, reduces melt dripping, maintains good flame retardancy and washability, and enhances low-temperature flexibility and thermal stability.
Smart Images
Figure CN119751505B_ABST