| Nano-Sb2O3/BEO/PP复合材料阻燃性能 |
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| 引用本文： | 徐建林,刘晓琦,杨文龙,牛磊,赵金强.Nano-Sb2O3/BEO/PP复合材料阻燃性能[J].材料工程,2019,47(1):84-90. |
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| 作者姓名： | 徐建林 刘晓琦 杨文龙 牛磊 赵金强 |
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| 作者单位： | 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州730050;兰州理工大学白银新材料研究院,甘肃白银730900;兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州730050;兰州理工大学白银新材料研究院,甘肃白银730900;兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州730050;兰州理工大学白银新材料研究院,甘肃白银730900;兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州730050;兰州理工大学白银新材料研究院,甘肃白银730900;兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,兰州730050;兰州理工大学白银新材料研究院,甘肃白银730900 |
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| 基金项目： | 国家自然科学基金;甘肃省科技计划 |
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| 摘 要： | 球磨混入溴化环氧树脂(BEO)和改性nano-Sb_2O_3以提高聚丙烯(PP)的阻燃性能,采用垂直燃烧(UL94)和极限氧指数(LOI)研究nano-Sb_2O_3/BEO/PP复合材料的阻燃性能,用扫描电镜(SEM)分析燃烧产物微观形貌,借助傅里叶变换红外光谱(FT-IR)和热重分析(TGA)研究Sb-Br阻燃体系协同作用机理。结果表明:改性nano-Sb_2O_3与BEO的反应可延长Br·在燃烧区的时间,从而消耗更多OH·和H·达到阻燃的目的。当改性nano-Sb_2O_3含量为7%(质量分数,下同),BEO含量为21%时,nano-Sb_2O_3/BEO/PP复合材料具有优异的阻燃性能,其极限氧指数值为28.6%,垂直燃烧等级UL94为V-0级。
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| 关 键 词： | 聚丙烯 nano-Sb2O3 溴化环氧树脂 阻燃性能 |
Flame retardant performance of nano- Sb_2O_3/BEO/PP composites |
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| XU Jian-lin,LIU Xiao-qi,YANG Wen-long,NIU Lei,ZHAO Jin-qiang.Flame retardant performance of nano- Sb_2O_3/BEO/PP composites[J].Journal of Materials Engineering,2019,47(1):84-90. |
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| Authors: | XU Jian-lin LIU Xiao-qi YANG Wen-long NIU Lei ZHAO Jin-qiang |
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| Affiliation: | (State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China;Baiyin Research Institute of Novel Materials,Lanzhou University of Technology,Baiyin 730900,Gansu,China) |
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| Abstract: | To improve flame retardant properties of polypropylene,the brominated epoxy resin (BEO) and nano-Sb2O3 were added into polypropylene by using a high energy ball milling technique.Flame retardant properties of polypropylene composites were evaluated by UL94 vertical combustion tests and limit oxygen index (LOI).The surface morphology of combustion products of composites was characterized by scanning electron microscopy(SEM) and the flame-retardant mechanism of flame retardant additives acting on the polymer matrix was studied by using thermo gravimetric analysis(TGA) and Fourier transform infrared (FT-IR) spectroscopy.The results show that the reaction between modified nano-Sb2O3 and BEO can prolong residence of the halogens in the combustion area,resulting in more hydroxyl and hydrogen radicals are replaced by the bromine radicals.When the content of modified nano-Sb2O3 is 7%(mass fraction,the same below) and that of BEO is 21%,the nano-Sb2O3/BEO/PP composite has excellent flame retardant performance with 28.6% of LOI value and V-0 of UL94 grade of vertical combustion. |
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| Keywords: | polypropylene nano-Sb2O3 brominated epoxy resin flame retardant performance |
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