泡沫塑料加工过程中的气泡成核理论(Ⅰ)——经典成核理论及述评Research on Bubble Nucleation Theory during the Process of Foam Plastics (I)—— review and classical theory of bubble nucleation
蔡业彬,国明成,彭玉成,谢存禧
摘要(Abstract)：
介绍了泡沫塑料加工过程中气泡成核的经典理论,给出了几种成核方式的临界成核半径、所需克服的吉布斯(Gibbs)自由能及成核速率的计算公式;评述了经典成核理论的发展,包括自由体积和气体过饱和度对气泡成核的影响,并分析指出了经典成核理论对动态聚合物熔体气泡成核解释存在的不足。
关键词(KeyWords)： 泡沫塑料;均相成核;异相成核;自由体积;饱和度
基金项目(Foundation): 国家自然科学基金重点资助项目(10172074 A020205);; 广东省科技计划项目(2003C103015)
作者(Author): 蔡业彬,国明成,彭玉成,谢存禧
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