摘要
针对棉织物极易燃烧且不防紫外线,以及现有应用最广泛的卤系阻燃剂面临诸多限制等问题,采用茶多酚(TP)、苯基膦酸(PPOA)和硫酸铁(Fe(SO_(4))_(3)),制备了茶多酚铁苯基膦酸络合物(TP-Fe-PPOA),采用浸渍烘燥法制备了阻燃棉织物,研究了其阻燃、防紫外线、拉伸以及透气性。结果表明:TP-Fe-PPOA能均匀附着在棉织物上,且TP-Fe和PPOA之间有一定的协同作用;TP-Fe-PPOA整理棉织物可实现离火自熄,其损毁长度仅为6.7 cm,极限氧指数从17.6%提升至24.7%;TP-Fe-PPOA整理棉织物的最大热释放速率较纯棉织物降低了11.8%,意味着火灾放热强度降低,燃烧反馈给织物的热量越少,减缓了火焰的传播;其防紫外线性能也大幅度提升,紫外线防护系数从纯棉织物的7.47±0.19提升至37.85±2.34,接近防晒产品的要求,在实现阻燃和防紫外线功能的同时,保留了较好的透气性。
Objective Cotton fabrics are one of the most important textiles;they are widely used in clothing, furniture, and decoration. However, cotton fabrics have a low limiting oxygen index(LOI) of only 17%, and they are highly flammable, which is easy to cause fire accidents. Meanwhile, the most widely used existing halogen-containing flame retardants are facing many restrictions due to the generation of halogenated hydrocarbons during burning. In addition, cotton fabrics have poor anti-ultraviolet(UV) properties and cannot protect the skin from UV damage. Therefore, it is necessary to design an additive to improve the flame retardancy of cotton fabrics with the anti-UV properties.Method Tea polyphenols(TP), phenyl phosphonic acid(PPOA) and iron(Ⅲ) sulfate hydrate(Fe(SO_(4))_(3)) were selected to prepare tea polyphenols-iron-phenyl phosphonic acid complex(named TP-Fe-PPOA). Phosphoric acid or polyphosphoric acid produced by the thermal degradation of PPOA are known to be able to promote char formation of materials, and TP generates free radicals and slows down burning. The benzene ring absorbs UV light and improves the anti-UV properties of fabrics. Flame retardant cotton fabrics were prepared by the dip-coating technology, and the flame retardant, anti-UV and mechanical properties were investigated by limiting oxygen index evaluation, vertical flame tests(VFT), cone calorimetry test(CCT), anti-UV performance test and universal testing machine. Results Test results show that TP-Fe-PPOA was evenly adhered to the surface of cotton fabrics(Fig. 1). There is a synergistic effect between TP-Fe and PPOA. Cotton/TP-Fe cannot achieve self-extinguishing(as shown in Fig. 5 and Tab. 3). There is a serious phenomenon of negative burning, and the cotton fabrics are completely destroyed in VFT. Cotton/PPOA slows down the flame spread significantly compared with cotton fabrics. However, the LOI value of Cotton/PPOA is still only 21.9%. When they were treated with TP-Fe-PPOA, cotton fabrics became self-extinguishing, the damage lengt
作者
蒋琦
刘云
朱平
JIANG Qi;LIU Yun;ZHU Ping(College of Textiles&Clothing,Qingdao University,Qingdao,Shandong 266071,China;Institute of Functional Textiles and Advanced Materials,Qingdao University,Qingdao,Shandong 266071,China;National Engineering Research Center for Advanced Fire-Safety Materials D&A(Shandong),Qingdao,Shandong 266071,China;State Key Laboratory of Bio-Fibers and Eco-Textiles,Qingdao University,Qingdao,Shandong 266071,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2023年第2期222-229,共8页
Journal of Textile Research
基金
国家自然科学基金重大项目(51991354)。
关键词
阻燃
防紫外线性能
棉织物
茶多酚铁苯基膦酸络合物
浸渍法
flame retardant
anti-ultraviolet property
cotton fabric
tea polyphenols-iron-phenyl phosphonic acid complex
dip-coating technology
