| GMT制品加强筋表面缩痕成因分析 |
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| 引用本文： | 乔延忠 戴干策. GMT制品加强筋表面缩痕成因分析[J]. 中国塑料, 2005, 19(7): 54-58 |
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| 作者姓名： | 乔延忠 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华东理工大学聚合物加工研究室 上海 200237 |
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| 摘 要： | 对GMT(玻璃纤维毡增强热塑性复合材料)模压制件加强筋缩痕的大小进行定量表征,并对加强筋缩痕的成因进行分析。采用电子数显百分表等距离测量深度的方法,对加强筋缩痕进行了较准确的测量和数字化表征。在此基础上,考察了材料性质、成型工艺、布料方式等对加强筋缩痕大小的影响。研究表明:加强筋内的纤维取向是影响表面缩痕大小的主要因素,树脂基体和成型工艺条件对表面缩痕的影响很小。加强筋内的纤维取向与GMT片材本身的流动性能密切相关,增强GMT片材的流动性能,是改善其制品表面缩痕的有效方法。
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| 关 键 词： | 玻璃纤维毡增强热塑性复合材料 加强筋 表面缩痕 |
| 文章编号： | 1001-9278（2005）07-0054-05 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-04-18 |
Analysis of Shrinkage Mark on Ribs of GMT Parts |
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| Qiao YanZhong;Dai GanCe. Analysis of Shrinkage Mark on Ribs of GMT Parts[J]. China Plastics, 2005, 19(7): 54-58 |
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| Authors: | Qiao YanZhong Dai GanCe |
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| Abstract: | A simple and feasible method was used in measuring the rib mark on the parts with GMT (Glass Fiber Mat Reinforced Thermoplastic). And the influence of matrixes ,molding process and reinforcement structure on the shrinkage mark of the rib was analyzed in detail. It was indicated that the fiber orientation inside the rib plays a big role in the forming of the rib shrinkage mark. The matrix and molding process have secondary effect. The fiber structure inside the rib has a close relation with the fluidity of the GMT. |
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| Keywords: | glass fiber mat reinforced thermoplastic composite rib shrinkage mark |
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