硬脂酸钠表面改性复合阻燃材料及在PE-LD上应用  

Surface Modification of Inorganic Composite Flame Retardant with Sodium Stearate and Its Application on PE-LD Composites

作　　者：陈嘉琳 张鑫 李世杰 纪丽丽 宋文东 应知伟 Chen Jialin;Zhang Xin;Li Shijie;Ji Lili;Song Wendong;Ying Zhiwei(College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China;Innovation Application Institute, Zhejiang Ocean University,Zhoushan 316022, China;College of Petrochemical and Energy Engineering, Zhejiang Ocean University, Zhoushan 316022,China;Zhoushan SLT Ocean Technology Co. Ltd., Zhoushan 316100, China)

机构地区：[1]浙江海洋大学海洋科学与技术学院,浙江舟山316022 [2]浙江海洋大学创新应用研究院,浙江舟山316022 [3]浙江海洋大学石化与能源工程学院,浙江舟山316022 [4]舟山赛莱特海洋科技有限公司,浙江舟山316100

出　　处：《工程塑料应用》2016年第10期120-125,共6页Engineering Plastics Application

基　　金：浙江省自然科学基金项目(LQ15E090006);舟山市科技计划项目-贝壳微纳米绿色果蔬洗洁剂产品开发(2014C11009);浙江海洋学院科研启动经费项目(21025011013)

摘　　要：以废弃的浓海水为原料,通过一步沉淀法制备无机复合阻燃材料。采用改性剂硬脂酸钠对无机复合阻燃材料进行表面改性处理,考察了改性剂的用量、改性时间和改性温度对其分散性的影响,同时通过扫描电子显微镜(SEM)、傅立叶变换红外光谱(FTIR)、X射线衍线(XRD)、比表面积(BET)测试、热重(TG)分析和差示扫描量热(DSC)对改性后的复合材料进行表征。结果表明,当改性剂用量为0.04 g,改性时间为6 h,改性温度为160℃时,改性后的无机复合阻燃材料分散性最佳,与有机材料的相容性最好。将改性后的无机复合阻燃材料填充到低密度聚乙烯(PELD)中进行了应用研究。通过DSC结果表明,添加了改性无机复合阻燃材料的PE-LD与纯PE-LD相比,最大分解温度推迟10℃左右,说明在提高了PE-LD的热稳定性的同时可增加其阻燃性。The inorganic composite flame retardant materials were synthesized via one step precipitation method with desalination concentrated seawater as raw material. The composite was modified by using sodium stearate. Then the dispersion effect of modification was investigated through modifier amount,time and temperature. In the same time,the modified composite flame retardant materials was characterized by SEM,FTIR,XRD,BET,TG and DSC. It indicates that the modified composite with better dispersion effect and compatibility of organic materials can be prepared under the following conditions :the dosage of modifier is 0.04 g,modifying temperature is 160 ℃,modifying time is 6 h. The modified composite is applied to polyethylene. The results show that compared with pure PE-LD, maximum decomposite temperature of the low density polyethylene(PE-LD) which is added with the modified composite was retarded around 10℃ . Furthermore,the thermal stability and flame retardancy have been a obviously improvement.

关 键 词：无机复合阻燃材料 氢氧化镁 氢氧化钙 硬脂酸钠 表面改性 表征 低密度聚乙烯 

分 类 号：TQ132.2[化学工程—无机化工]