抗熔滴型多元有机硅阻燃剂整理锦纶6织物的制备及其性能  

Preparation of multi-component organic polysiloxane for flame retardancy of polyamide 6 fabrics with anti-dripping behavior

作　　者：范硕[1,2] 杨鹏 曾锦豪[1,3] 宋潇迪 龚昱丹 肖遥 FAN Shuo;YANG Peng;ZENG Jinhao;SONG Xiaodi;GONG Yudan;XIAO Yao(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China;School of Chemical&Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China;Shengzhou Research Institute of Zhejiang Sci-Tech University,Shaoxing,Zhejiang 312400,China)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),浙江杭州310018 [2]江南大学化学与材料工程学院,江苏无锡214122 [3]浙江理工大学嵊州创新研究院,浙江绍兴312400

出　　处：《纺织学报》2024年第1期152-160,共9页Journal of Textile Research

基　　金：国家自然科学基金青年科学基金项目(52203074);中国博士后科学基金第73批面上资助项目(2023M731331)。

摘　　要：为提升锦纶6织物阻燃性能,基于水解缩合反应原理,开发设计多元协效抗熔滴型含磷席夫碱基有机硅阻燃剂,并采用浸渍法对锦纶6织物进行阻燃整理。借助红外光谱、热重分析仪、微型燃烧量热仪、极限氧指数仪、扫描电镜、拉曼光谱及热裂解气质联用仪等技术分别对阻燃锦纶6织物的化学结构、热稳定性、燃烧行为及其燃烧后炭化层与气相热解产物系统研究。结果表明:阻燃锦纶6织物的炭化能力及阻燃性能有效提升,其残炭率可增加至33.9%,且在火焰移开后可快速实现自熄,并未有熔滴产生;相较于锦纶6织物,阻燃锦纶6织物的热释放速率峰值(PHRR)及总释热量(THR)分别下降23.8%及20.4%,火灾安全性有效提升;经水洗20次后,阻燃锦纶6织物仍可实现自熄,其PHRR及THR值相较于锦纶6织物,仍分别下降了14.1%及13.6%。Objective Polyamide 6 fabrics are widely used in the fields of textiles and garment,aerospace,construction,and other industries by virtue of itslightweight,softness,high-strength,and abrasion resistance.However,polyamide 6 fabric is a combustible material,which is easy to ignite with fast burning speed,high heat release,and serious melt-dripping behavior,which greatly limitsthe application of polyamide 6 fabrics in some special regions.Thus,developing the flame-retardant polyamide 6 fabrics with good anti-dripping behavior becomes an important and meaningful task.Method A multi-component synergistic flame retardant of organic polysiloxane containing phosphorus and Schiff base unitswas designed by hydrolysis-condensation reaction.Subsequently,flame-retardant polyamide 6 fabric was prepared by dipping method,and itschemical structure,thermal stability,combustion behavior,char residues,and pyrolysis volatiles were systematically investigated by fourier transform infrared spectro scop(FT-IR),thermo-gravimetric analysis(TGA),microscale combustion calorimetry(MCC),and Py-GC/MS test methods,respectively.Results FT-IR and XPS resultsshowed that polyamide 6 fabric was finished by the synergistic flame retardant successfully.According to TGA results,the degradation behavior of the finished polyamide 6 fabric changed to a two-stage degradation mode under the assistance of flame retardant.The initial degradation temperature(T 5%)and the temperature at maximum weight loss rate(T max)of the finished polyamide 6 fabric decreased distinctly.On the contrary,the carbon yield(Y c)of the finished fabric approached 33.9%,which was largely higher than that of polyamide 6 fabric(3.6%).The increased carbon residue as a physical barrier was conducive to protecting the underlying fabric from heat and combustible gases.Significant differences were also observed between polyamide 6 fabric and the finished fabric from real-time combustion images.The polyamide 6 fabric was ignited quickly with fast fire spreading speed and serious melt-drippi

关 键 词：锦纶6织物 阻燃整理 阻燃剂 功能纺织品 多元有机硅 抗熔滴 

分 类 号：TS156[轻工技术与工程—纺织材料与纺织品设计]