次磷酸铝的形貌可控制备及其共混改性  

MORPHOLOGY CONTROLLABLE PREPARATION OF ALUMINUM HYPOPHOSPHITE AND ITS BLENDING MODIFICATION

作　　者：崔萍 王明 陈玉娴 Cui Ping;Wang Ming;Chen Yuxian(Lanzhou Lanshi Zhongke Nanotechnology Co.,Ltd.,Lanzhou 730300,Gansu,China)

机构地区：[1]兰州兰石中科纳米科技有限公司,甘肃兰州730300

出　　处：《精细石油化工》2024年第6期53-56,共4页Speciality Petrochemicals

摘　　要：通过“多相界面反应技术+微波陈化”制备了次磷酸铝(AHP),并采用纳米氢氧化镁(nano-MH)对AHP进行了表面改性,对复合阻燃材料(AHP@MH)的阻燃性能进行测试和分析。实验结果表明:当添加剂体系为“STAC+PEG6000”,陈化方式为微波陈化800 W、1 min时,所得AHP形貌由无规形貌发展为鳞片堆积球形形貌,一次粒径仅为600 nm;通过纳米氢氧化镁对次磷酸铝的共混改性,可实现对次磷酸铝的表面改性和进一步超细化改性处理,实验收率为93.15%,产物粒径为5~10μm;AHP@MH添加量为白料质量的15%时,材料的极限氧指数已达30,阻燃性能可达V0级,且阻燃测试阶段未出现熔滴现象。Aluminum hypophosphite(AHP)was prepared by“multiphase interface reaction technology+microwave aging”method.A composite flame retardant material was then prepared by surface modification of the AHP using nano magnesium hydroxide(nano MH),and the flame retardant properties of this composite flame retardant material were tested and analyzed.The experimental results showed that when the additive system was“STAC+PEG6000”and the aging method was microwave aging at 800 W for 1 min,the obtained AHP morphology developed from random morphology to a flake stacking spherical morphology,with a primary particle size of 600 nm.By blending modification of aluminum hypophosphate with nano magnesium hydroxide,surface modification and further ultrafine modification of aluminum hypophosphate could be achieved,with an experimental yield of 93.15%,and a product particle size of 510μm.When the addition amount of AHP@MH was 15%of the mass of the white material,the ultimate oxygen index of the material reached up to 30,the flame retardant performance could reach V-0 level,and there was no melting drop phenomenon during the flame retardant testing stage.

关 键 词：阻燃剂 形貌可控 共混改性 次磷酸铝 氢氧化镁 

分 类 号：TQ314.248[化学工程—高聚物工业]