| 添加剂对膨胀阻燃低密度聚乙烯性能的影响 |
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| 引用本文： | 李小建,朱新生,周正华,蒋雪璋,张榕. 添加剂对膨胀阻燃低密度聚乙烯性能的影响[J]. 材料工程, 2006, 0(Z1): 66-71 |
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| 作者姓名： | 李小建 朱新生 周正华 蒋雪璋 张榕 |
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| 作者单位： | 1. 苏州大学,材料工程学院,江苏,苏州,215021
2. 苏州大学,材料工程学院,江苏,苏州,215021;吴江丝绸股份有限公司,江苏,吴江,215228 |
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| 基金项目： | 教育部留学回国人员科研启动基金，K5115108， |
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| 摘 要： | 本工作研究各种不同添加剂对低密度聚乙烯膨胀阻燃体系的阻燃性能和力学性能的影响.差示扫描量热法(DSC)、热失重法(TG)和力学性能测试结果表明:EVA可提高共混物的断裂伸长率,且能促进体系成炭;SiO2改善了体系的断裂强度、断裂伸长率和冲击强度及阻燃性能;氧化剂(NH4)2SO4则取得了较好的阻燃效果.
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| 关 键 词： | 低密度聚乙烯(LDPE) 乙烯-醋酸乙烯酯共聚物(EVA) 膨胀阻燃剂 硫酸铵 碳化 |
| 文章编号： | 1001-4381(2006)Suppl-0066-06 |
Effects of Additives on the Flame Retardancy and Mechanical Properties of Intumescent Flame Retarded Low Density Polyethylenes |
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| LI Xiao-jian,ZHU Xin-sheng,ZHOU Zheng-hua,JIANG Xue-zhang,ZHANG Rong. Effects of Additives on the Flame Retardancy and Mechanical Properties of Intumescent Flame Retarded Low Density Polyethylenes[J]. Journal of Materials Engineering, 2006, 0(Z1): 66-71 |
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| Authors: | LI Xiao-jian ZHU Xin-sheng ZHOU Zheng-hua JIANG Xue-zhang ZHANG Rong |
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| Abstract: | The flame retardant and mechanical properties of intumescent flame retarded low density polyethylenes in the presence of additives were studied with differential scan calorimetry(DSC),thermogravimetry(TG) and mechanical measurement.The results showed that ethylene vinylacetate copolymer(EVA) enhanced the elongation at break and char formation.The addition of fumed silica(SiO_2) produced the increases in tensile strength,elongation at break,the impact strength of notched specimens and flame retardancy properties.(NH_4)_2SO_4 as an oxidant improved the intumescent flame retarded low density polyethylenes. |
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| Keywords: | low density polyethylene ethylene vinylacetate copolymer intumescent flame retardant ammonium sulfate char formation |
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