差示扫描量热法(DSC)测定全密度聚乙烯结晶度 |
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引用本文: | 李薇,程志刚,聂萍,罗舜皓. 差示扫描量热法(DSC)测定全密度聚乙烯结晶度[J]. 中国建材科技, 2013, 0(1): 37-41 |
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作者姓名: | 李薇 程志刚 聂萍 罗舜皓 |
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作者单位: | 1. 兰州石化职业技术学院石油化学工程系,甘肃兰州,730060 2. 兰州石化公司化肥厂,甘肃兰州,730060 3. 兰州石化公司,甘肃兰州,730060 |
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摘 要: | 本文自建了用差示扫描量热仪测定全密度聚乙烯的熔融温度、结晶温度、结晶度等指标参数的分析方法,讨论了测定过程中热历史、样品制备、升温速率等因素对测试结果的影响;并对某乙烯厂的多批次全密度聚乙烯进行了测试,通过重复性试验,表明该方法具有准确、简便、快速的技术特点。
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关 键 词: | 差示扫描量热法(DSC) 全密度聚乙烯 结晶度 |
Test the crystallinity of full-density polyethylene by differential scanning calorimetry(DSC) |
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Abstract: | This article set up a analysis method by differential scanning calorimetry (DSC) to measure the full- density polyethylene melting temperature,crystallization temperature,crystallinity,etc.The influence of the thermal history,sample preparation,heating rate and other factors in the determination process to the test results is discussed.Batches of full-density polyethylene of an ethylene plant were tested .By the repeatability test,show that the method has the technical characteristics such as accurate, simple and fast. |
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Keywords: | differential scanning calorimetry(DSC) fuU-density polyethylene crystaUinity |
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