| 戊烷对可发性聚苯乙烯性质的影响 |
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| 引用本文： | 张庆雷,罗玲玲,刘亚康,李齐方.戊烷对可发性聚苯乙烯性质的影响[J].北京化工大学学报(自然科学版),2010,37(5):62-66. |
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| 作者姓名： | 张庆雷 罗玲玲 刘亚康 李齐方 |
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| 作者单位： | 北京化工大学 材料科学与工程学院， 北京 100029 |
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| 摘 要： | 采用悬浮聚合法合成了可发性聚苯乙烯(EPS),研究了戊烷用量对EPS粒径、产品细粉率、玻璃化转变温度、分子量和戊烷在EPS产品中分散情况的影响,并通过DSC、GPC和电子显微镜分析手段对产品进行了测试。结果表明,戊烷用量的增加使产品的平均粒径增加,玻璃化转变温度和分子量减小;当戊烷用量为2.14%(质量分数)时,戊烷在产品中分散较好,当用量为2.67%时,细粉率达到最小值0.42%。
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| 关 键 词： | 发性聚苯乙烯 戊烷 粒径 细粉率 |
| 收稿时间： | 2010-03-08 |
Effect of the amount of pentane on the properties of expanded polystyrene |
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| ZHANG QingLei,LUO LingLing,LIU YaKang,LI QiFang.Effect of the amount of pentane on the properties of expanded polystyrene[J].Journal of Beijing University of Chemical Technology,2010,37(5):62-66. |
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| Authors: | ZHANG QingLei LUO LingLing LIU YaKang LI QiFang |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Expanded polystyrene(EPS) has been prepared in a reactor by suspension polymerization.The effect of varying the amount of pentane present on the average partical diameter of the EPS,the proportion of small particles,the glass transition temperature,the molecular weight and the dispersion of pentane within the EPS were investigated.Differential scanning calorimetry,gel permeation chromatography and electron microscopy showed that with increasing amounts of pentane the average diameter of the EPS increased,wh... |
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| Keywords: | expanded polystyrene pentane particle diameter proportion of small particles |
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