| Eu_2O_3/LDPE复合材料热性能及热氧分解动力学 |
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| 引用本文： | 李红山,何江,余雪娜,柯吉娜,李善吉.Eu_2O_3/LDPE复合材料热性能及热氧分解动力学[J].塑料科技,2012,40(4):65-68. |
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| 作者姓名： | 李红山 何江 余雪娜 柯吉娜 李善吉 |
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| 作者单位： | 嘉应学院化学与环境学院,广东梅州,514015 |
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| 摘 要： | 通过热失重法、差示扫描量热法研究了氧化铕(Eu2O3)对低密度聚乙烯(LDPE)热氧分解行为的影响及复合材料的热分解动力学。结果表明:在添加Eu2O3后,LDPE在空气气氛下的热稳定性得到了提高;Eu2O3/LDPE复合材料的热氧分解反应为一级反应;Eu2O3的加入使得LDPE热氧分解表观活化能增大;添加Eu2O3并不会影响LDPE的氧化诱导期,说明Eu2O3对LDPE的热氧稳定机理与抗氧剂不同。
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| 关 键 词： | 氧化铕 低密度聚乙烯 热稳定性 分解动力学 |
Investigation of Thermal Properties and Thermo-oxidative Decomposition Kinetics of Eu2O3/LDPE Composite |
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| Li Hongshan
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He Jiang
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Yu Xuena
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Ke Jina
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Li Shanji.Investigation of Thermal Properties and Thermo-oxidative Decomposition Kinetics of Eu2O3/LDPE Composite[J].Plastics Science and Technology,2012,40(4):65-68. |
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| Authors: | Li Hongshan He Jiang Yu Xuena Ke Jina Li Shanji |
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| Affiliation: | 1)-School of Chemistry and Environment,Jiaying University,Meizhou 514015,China |
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| Abstract: | The effect of Eu2O3 on thermo-oxidative decomposition behavior of LDPE and thermal decomposition kinetics of Eu2O3/LDPE composite were studied by TG and DSC.The results show that the thermal stability of LDPE is improved in air atmosphere after Eu2O3 is added;the thermo-oxidative decomposition reaction of Eu2O3/LDPE composite is first order reaction;the addition of Eu2O3 increases the apparent activation energy of thermo-oxidative decomposition reaction of LDPE;the oxidation induction time of LDPE is not changed by Eu2O3,which indicates that the effect of Eu2O3 on thermo-oxidative stabilization mechanism of LDPE is different with that of antioxidant. |
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| Keywords: | Europium oxide LDPE Thermal stability Decomposition kinetics |
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