| 硬质聚氨酯泡沫塑料夹芯气孔缺陷研究 |
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| 引用本文： | 王章忠%蔡璐.硬质聚氨酯泡沫塑料夹芯气孔缺陷研究[J].宇航材料工艺,2003,33(2):10-13. |
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| 作者姓名： | 王章忠%蔡璐 |
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| 作者单位： | 南京工程学院材料工程系,南京,210013 |
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| 基金项目： | 江苏省教育厅“青蓝工程”基金 |
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| 摘 要： | 在介绍了泡沫塑料成型机理与过程的基础上，重点研究了模塑成型的硬质聚氨酯泡沫塑料夹芯上气孔缺陷的类型及产生原因，指出可从发泡原料组分、发泡工艺及模塑型腔设计等方面采取措施来显著减轻夹芯气孔缺陷。
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| 关 键 词： | 硬质聚氨酯泡沫塑料 夹芯气孔缺陷 原因 发泡工艺 |
Study on the Cavity Defects of Polyurethane Rigid Foam Plastics Core |
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| Wang Zhangzhong Cai Lu.Study on the Cavity Defects of Polyurethane Rigid Foam Plastics Core[J].Aerospace Materials & Technology,2003,33(2):10-13. |
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| Authors: | Wang Zhangzhong Cai Lu |
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| Abstract: | Based on the introduced mechanism and process of bubble nucleation, the growth and solidification of foam plastics, the types and generations of the cavity defects of moulding polyurethane rigid foam plastics core are studied emphatically. It is pointed out that the cavity defects of foam plastics core can be reduced obviously by taking measures from foaming materials formula, processing conditions and mould design. |
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| Keywords: | Foam plastics Polyurethane Sandwich composite Cavity defect |
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