| 超临界水中添加过氧化苯甲酰对聚丙烯降解的促进作用 |
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| 引用本文： | 苏磊,吴学华,刘秀茹,陈丽英,陈克宇,洪时明.超临界水中添加过氧化苯甲酰对聚丙烯降解的促进作用[J].中国化学工程学报,2005,13(6):845-848. |
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| 作者姓名： | 苏磊 吴学华 刘秀茹 陈丽英 陈克宇 洪时明 |
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| 作者单位： | [1]Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China [2]Department of Physics, Zhengzhou University of Light Industry, Zhengzhou 450002, China [3]College of Science, Kunming University of Science and Technology, Kunming 650093, China [4]Department of Polymer Science and Technology, Sichuan University, Chengdu 610065, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （No.59972022）. |
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| 摘 要： | The effect of benzoyl peroxide （BPO） on polypropylene （PP） degradation in supercritical water was investigated with the aim of developing a process for recycling of waste plastics. A series of experiments with and without BPO were carried out at temperatures of 653 K and 673 K under pressure about 26 MPa for 30, 75 and 120 min respectively. Products were analyzed by an Ostward-type viscometer, gas chromatography and spectrometry （GC/MS） etc. The results indicated that mean molecular weight of the samples decreased greatly along with the time elapsing or with the temperature increasing, and PP was decomposed to Miphatic and cycloparaftinic hydrocarbons but a few benzenoid hydrocarbons. By comparing the experiments with and without BPO, it was made clear that BPO is an effective additive on PP degradation in supercritical water.
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| 关 键 词： | 超临界水 过氧化苯甲酰 聚丙烯 降解 促进作用 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005-03-082005-09-12 |
An Investigation on Polypropylene Degradation in Supercritical Water Adding Benzoyl Peroxide |
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| SU Lei,WU Xuehua,LIU Xiuru,CHEN Liying,CHEN Keyu,HONG Shiming.An Investigation on Polypropylene Degradation in Supercritical Water Adding Benzoyl Peroxide[J].Chinese Journal of Chemical Engineering,2005,13(6):845-848. |
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| Authors: | SU Lei WU Xuehua LIU Xiuru CHEN Liying CHEN Keyu HONG Shiming |
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| Affiliation: | Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China;Department of Physics, Zhengzhou University of Light Industry, Zhengzhou 450002, China;Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China;College of Science, Kunming University of Science and Technology, Kunming 650093, China;Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China;Department of Polymer Science and Technology, Sichuan University, Chengdu 610065, China |
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| Abstract: | The effect of benzoyl peroxide (BPO) on polypropylene (PP) degradation in supercritical water was investigated with the aim of developing a process for recycling of waste plastics. A series of experiments with and without BPO were carried out at temperatures of 653 K and 673 K under pressure about 26 MPa for 30, 75 and 120 min respectively. Products were analyzed by an Ostward-type viscometer, gas chromatography and spectrometry (GC/MS) etc. The results indicated that mean molecular weight of the samples decreased greatly along with the time elapsing or with the temperature increasing, and PP was decomposed to aliphatic and cycloparaffinic hydrocarbons but a few benzenoid hydrocarbons. By comparing the experiments with and without BPO, it was made clear that BPO is an effective additive on PP degradation in supercritical water. |
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| Keywords: | vsupercritical water polypropylene degradation benzoyl peroxide |
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