工艺与制造英文2020被引 2
聚合物复合材料制品真空树脂传递模塑工艺的数学模型
Mathematical Model of Vacuum–Resin Transfer Molding for Polymeric Composites Products
Sorin Mihai Ion, Constantin Gheorghe Opran, Giuseppe Lamanna · University Politehnica of Bucharest 313 Splaiul Independentei Bucharest 060042 Romania
摘要整理
树脂传递模塑（RTM）工艺是制造大型聚合物基复合材料制品最常用的技术，具有生产周期短、材料消耗少、脱模后尺寸精度高（±0.5 mm）、制品两侧光滑光亮、壁厚均匀等优势。该工艺可采用单侧或双侧凝胶涂层，增强材料可选用玻纤、碳纤、夹芯材料或金属嵌件，树脂固化过程无需加压，具有循环时间短、苯乙烯排放低等特点。本文建立了真空-RTM工艺制造聚合物复合材料制品的数学模型。模型考虑了模具填充和树脂固化过程中，薄壁型腔内热物理性能随空间位置变化且随时间变化的特点。研究材料按均质各向同性材料处理。通过应用数值求解方案对该模型进行求解，并与实验测量结果进行对比验证，充分验证了该填充方法的优越性，为真空-RTM工艺的优化设计和工艺参数控制提供了理论依据。
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