The invention belongs to the technical field of nylon industrial yarns, and particularly relates to a nylon industrial yarn for an air bag restraint system and a preparation method thereof. The preparation method of the nylon industrial yarn comprises the following steps: by taking nylon 66 salt and a benzotriazole-phosphate derivative as raw materials, carrying out polycondensation under the action of sodium hypophosphite to obtain modified nylon 66 slices, and then carrying out melt spinning to obtain the nylon industrial yarn, the nylon industrial yarn is prepared through direct polymerization by adopting a one-step method, the problem that the comprehensive performance of the nylon 66 is reduced due to flame-retardant modification of the finished nylon 66 can be effectively avoided, the preparation process is simple, and production is convenient; the prepared nylon industrial yarn has good strength, aging resistance and flame retardance, and has great market application value in the field of automobile safety air bags.
本发明属于尼龙工业丝技术领域,具体涉及一种安全气囊用尼龙工业丝及其制备方法。该尼龙工业丝的制备方法为:以尼龙66盐和苯并三氮唑‑磷酸酯衍生物为原料,在次磷酸钠的作用下,进行缩聚得到改性尼龙66切片,然后再通过熔融纺丝制得尼龙工业丝;本发明采用一步法直接聚合制备尼龙工业丝,可以有效避免对成品尼龙66进行阻燃改性,造成其综合性能下降的问题,而且制备过程简单,便于生产;所制得的尼龙工业丝具有良好的强度、耐老化性能及阻燃性能,在汽车安全气囊领域具有极大的市场应用价值。
Nylon industrial yarn for safety air bag and preparation method of nylon industrial yarn
一种安全气囊用尼龙工业丝及其制备方法
2023-09-29
Patent
Elektronische Ressource
Chinesisch
IPC: | D01F Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern , CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C07F Acyclische, carbocyclische oder heterocyclische Verbindungen, die andere Elemente als Kohlenstoff, Wasserstoff, Halogen, Sauerstoff, Stickstoff, Schwefel, Selen oder Tellur enthalten , ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind |
New developments of PET industrial yarn
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