摘要
为了改善聚丙烯腈(PAN)基碳纺织品的阻燃性能,在紫外辐照下,引发聚丙烯腈基碳纤维与磷系阻燃剂聚磷酸铵(APP)的表面化学接枝反应,制备得到新型阻燃纤维PAN-g-APP。分析高能电子束辐照引发膜接枝过程中辐照时间、接枝单体浓度对阻燃纤维接枝率的影响。改性后的PAN-g-APP阻燃纤维的阻燃性能得到大幅度提高。在辐照时间为2.5h、单体质量分数为10%条件下得到的新型聚丙烯腈阻燃纤维具有最佳的阻燃效果。TG曲线表明,纤维原丝的起始分解温度为225.6℃,经APP接枝处理后样品的起始分解温度提高到446℃。
PAN was induced to have surface grafting reaction with APP by ultraviolet radiation to enhance the flame retardant performance of PAN textile, and the new flame retardant fiber PAN-g-APP was obtained. The influence on the grafting ra- tio of flame retardant fiber by radiation time or concentration of grafting monomer during the grafting induced by high-power e- lectron beam was analyzed. The modified PAN-g-APP flame retardant fiber has much better flame retardant performance. The PAN--g： APP has best flame retardant performance when the radiation time is 2.5 h and the mass fraction is 10%. TG curve showed that the original fiber started to decompose at 225.6 ℃, the fiber modified by APP started to decomposed at 446 ℃.
出处
《消防科学与技术》
CAS
北大核心
2014年第8期949-951,共3页
Fire Science and Technology
关键词
磷系阻燃剂
接枝改性
阻燃纤维
聚丙烯腈
Phosphorus based flame retardant
graft modification
flame retardant fiber
PAN
