涂层方式对芳纶阻燃性能的影响  

Effect of coating methods on flame retardant properties of aramid fiber

作　　者：刘经吉 刘萍 张薄 Liu Jingji;Liu Ping;Zhang Bo(Hangzhou Dianrun Chemical Co.,Ltd.,Hangzhou 311241,Zhejiang,China;College of Safety Engineering,Chongqing University of Science&Technology,Chongqing 401331,Sichuan,China)

机构地区：[1]杭州点润化工有限公司,浙江杭州311241 [2]重庆科技学院安全工程学院,四川重庆401331

出　　处：《产业用纺织品》2024年第1期38-46,共9页Technical Textiles

基　　金：重庆市教育委员会科学技术研究项目(KJQN201901516)。

摘　　要：先将聚磷酸铵(APP)、三聚氰胺(MEL)、季戊四醇(PER)、热塑性聚氨酯(TPU)弹性体、铝银浆(AlU)组成质量配比不同的4种膨胀型阻燃聚氨酯银浆(IFR/TPU/AlU)溶液,再将4种溶液分别以直接涂层方式和发泡涂层方式涂覆于芳纶织物表面,探究2种涂层方式对芳纶织物阻燃性能的影响。锥形量热测试和垂直燃烧测试等结果显示:阻燃性能最好的IFR/TPU/AlU溶液配方为m(APP)∶m(MEL)∶m(PER)∶m(TPU)∶m(AlU)=12∶6∶2∶16∶20;与未涂覆的芳纶织物相比,试样ZT-3和试样FP-3的热释放速率峰值、总释放热分别降低了74.3%、9.9%和76.9%、10.2%,残炭率分别为7.4%和7.5%。涂覆芳纶织物的纬向阻燃性能优于经向阻燃性能,直接涂层芳纶织物的阻燃性能优于发泡涂层芳纶织物的阻燃性能。Firstly,ammonium polyphosphate(APP),melamine(MEL),pentaerythritol(PER),thermoplastic polyurethane(TPU)elastomer and aluminium silver paste(AlU)were used to form four kinds of intumescent flame retardant polyurethane silver paste(IFR/TPU/AlU)solutions with different mass ratios,and then the four solutions were coated on the surface of aramid fabrics by the direct coating method and the foam coating method to investigate the influence of two coating methods on the flame retardant properties of aramid fabrics.The results of cone calorimetry test and vertical combustion test showed that the best IFR/TPU/AlU solution formulation for flame retardancy was m(APP)∶m(MEL)∶m(PER)∶m(TPU)∶m(AlU)=12∶6∶2∶16∶20.Compared with the uncoated aramid fabric,the peak rate of heat release and the total heat release of ZT-3 and FP-3 were reduced by 74.3%,9.9%and 76.9%,10.2%,respectively,and the residual carbon rates of them were 7.4%and 7.5%,respectively.The flame retardant properties of coated aramid fabrics in the weft direction was better than that in the warp direction,and the flame retardant properties of directly coated aramid fabrics was better than that of foam coated aramid fabrics.

关 键 词：芳纶织物 直接涂层 发泡涂层 阻燃性能 热释放速率峰值 总释放热 残炭率 

分 类 号：TQ314.24[化学工程—高聚物工业]