| PP/GMT制品模内冷却与结晶过程模拟 |
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| 引用本文： | 路慧玲,朱永全,戴干策. PP/GMT制品模内冷却与结晶过程模拟[J]. 复合材料学报, 2002, 19(1): 17-21 |
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| 作者姓名： | 路慧玲 朱永全 戴干策 |
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| 作者单位： | 华东理工大学,聚合物加工研究室,上海,200237 |
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| 基金项目： | 国家 8 6 3计划项目 ( 715 -0 12 -0 0 1-2 |
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| 摘 要： | 采用有限元方法,对PP/GMT制品压缩模塑的冷却与结晶过程进行数值模拟,采用非等温结晶模型,计算出不同条件下制品中树脂的结晶度和制品内部温度分布,并与实验结果进行了对比,为压缩模塑中保压冷却时间的确定提供了理论依据。
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| 关 键 词： | GMT 压缩模塑 传热 结晶 模拟 |
| 文章编号： | 1000-3851(2002)01-0017-05 |
| 收稿时间： | 2000-04-12 |
| 修稿时间： | 2000-04-12 |
SIMULATION OF COOLING AND CRYSTALLIZATION PROCESS OF PP/GMT PARTS IN MOLD CAVITY DURING COMPRESSION MOLDING |
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| LU Hui-ling,ZHU Yong-quan,DAI Gan-ce. SIMULATION OF COOLING AND CRYSTALLIZATION PROCESS OF PP/GMT PARTS IN MOLD CAVITY DURING COMPRESSION MOLDING[J]. Acta Materiae Compositae Sinica, 2002, 19(1): 17-21 |
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| Authors: | LU Hui-ling ZHU Yong-quan DAI Gan-ce |
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| Affiliation: | Lab of Polymer Processing, East China University of Science and Technology, Shanghai 200237,China |
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| Abstract: | A mathematical model of heat transfer in part was established to simulate thermal behavior of GMT parts during compression molding, coupled with non-isothermal crystallization kinetics of polypropylene. A finite-element method was used to solve the model. The distribution of internal temperature and crystallinity of GMT parts were calculated, based on the non-isothermal crystallization model. The effects of mold temperature and the part thickness on cooling and crystallization processes were considered. The simulated results agreed well with experimental data. The proper mold temperature should be about 80 ℃, and the mean crystallinity of the resin should be controlled in the range of 0.51~0.55. |
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| Keywords: | GMT compression molding heattransfer crystallization simulation |
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