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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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稳态和振荡剪切流动下聚合物共混反应体系演化的格子玻尔兹曼模拟
DOI: 10.3724/SP.J.1105.2013.12223, PP. 341-346
Keywords: 反应共混,剪切流动,格子玻尔兹曼模拟
Abstract:
采用A/B/S三元共混体系为模型体系,其中S由A和B通过可逆的化学反应生成并充当增容剂.我们采用自由能形式的格子玻尔兹曼模拟方法,考察了在稳态及振荡剪切流动下化学反应速率、剪切速率和振荡频率对体系形态结构演化的影响.模拟给出了增容剂平均密度和空间分布随时间的演化,结果表明增容剂S的生成能有效地降低分散相的尺寸,并且通过控制化学反应速率、剪切速率和振荡频率能够有效地调控增容剂在体系中的分布,从而为控制反应共混体系的形态结构提供帮助.
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