| 金属化合物对LDPE／IFR体系热降解行为的影响 |
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| 引用本文： | 冯才敏,农彦彦,欧阳玉章,梁敏仪,刘洪波.金属化合物对LDPE／IFR体系热降解行为的影响[J].顺德职业技术学院学报,2013(4):9-12. |
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| 作者姓名： | 冯才敏 农彦彦 欧阳玉章 梁敏仪 刘洪波 |
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| 作者单位： | 顺德职业技术学院应用化工技术系,广东佛山528333 |
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| 基金项目： | 2013年顺德区科技计划项目（20130202030）. |
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| 摘 要： | 以多聚磷酸铵（APP）与自制齐聚物式成炭剂（OCA）复配成新型膨胀型阻燃剂（IFR），采用热重分析仪（TGA）研究硼酸锌（ZB）和二氧化锰（MnO2）对LDPE／IFR体系热降解行为的影响。结果表明，氮气气氛下，金属化合物都能促使复合材料形成更多的残炭，但对热降解活化能的影响不明显；空气气氛下，MnO2可减缓材料的初始降解，使复合材料寿命延长，而ZB则使复合材料初始降解延长，寿命缩短。
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| 关 键 词： | 热降解 热寿命 金属化合物 膨胀阻燃 低密度聚乙烯 |
Effects of Metal Compounds on the Thermal Degradation Behavior of LDPE/IFR System |
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| Authors: | FENG Cai-min NONG Yan-yan OUYANG Yu-zhang＊ LIANG Min-yi LIU Hong-bo |
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| Institution: | (Department of Applied Chemical Engineering, Shunde Polytechnic, Foshan Guangdong 528333, China) |
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| Abstract: | Novel intumescent flame retardant （IFR） was composed by novel oligomeric charring agent （OCA） and ammonium polyphosphate （APP）, and the effects of zinc borate （ZB） and magnesium dioxide （MnO2） on the thermal degradation behavior of LDPE/IFR were investigated by thermogravinity analysis （TGA）. It was found that metal compounds could promote LDPE/IFR composite to form more char residue, but they did not affect the active energy of LDPE/IFR under N2. MnO2 could slow down the starting degradation, and prolong the thermal lifetime of LDPE/IFR; but ZB could prolong the starting degradation and shorten the thermal lifetime. |
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| Keywords: | thermal degradation thermal lifetime metal compound intumescent flame retardant LDPE |
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