| 热固性预浸料凝胶特性的固体扭转测试方法 |
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| 引用本文： | 周娟,顾轶卓,谢旻,李敏,张佐光.热固性预浸料凝胶特性的固体扭转测试方法[J].复合材料学报,2009,26(5):8-13. |
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| 作者姓名： | 周娟 顾轶卓 谢旻 李敏 张佐光 |
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| 作者单位： | 北京航宅航天大学材料科学与工程学院,空天材料与服役教育部重点实验室,北京,100191 |
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| 摘 要： | 采用固体扭转法研究了一种玻璃纤维织物/环氧预浸料和2种碳纤维织物/环氧预浸料的流变特性，为测定凝胶点和研究凝胶化过程提供了一种可行的表征方法。在此基础上考察了试样尺寸和纤维织物结构对预浸料凝胶特性的影响。结果表明：试样宽度对测试结果基本没有影响，而试样厚度增加会引起预浸料动态模量的降低，凝胶点不易判定；纤维织物结构对预浸料凝胶点有很大影响，说明预浸料流变特性反映的是树脂流变特性与纤维网络可变形性综合作用的结果。
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| 关 键 词： | 复合材料 预浸料 凝胶特性 固体扭转法 |
| 收稿时间： | 2008-09-11 |
| 修稿时间： | 2008-12-11 |
Gelation of thermosetting prepreg by means of solid torsional method |
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| ZHOU Juan,GU Yizhuo,XIE Min,LI Min,ZHANG Zuoguang.Gelation of thermosetting prepreg by means of solid torsional method[J].Acta Materiae Compositae Sinica,2009,26(5):8-13. |
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| Authors: | ZHOU Juan GU Yizhuo XIE Min LI Min ZHANG Zuoguang |
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| Affiliation: | ( Key Laboratory of Aerospace Materials and Performance (Minist ry of Education), School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China) |
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| Abstract: | A kind of glass fiber textile/epoxy prepreg and two kinds of carbon fiber textile/epoxy prepregs were studied by means of the solid torsional method,which provides a feasible measurement for the gel point and gelation process.The effects of the sample dimension and the type of fabric on the gel properties of the prepreg were investigated.The results show that the influence of the sample width on the gelation is negligible,while the increase of the sample thickness results in the decrease of the dynamic modu... |
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| Keywords: | composite prepreg gelation solid torsional method |
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