| 正交设计确定模压条件对HDPE/CB复合材料PTC强度的影响 |
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| 引用本文： | 易回阳,肖建中. 正交设计确定模压条件对HDPE/CB复合材料PTC强度的影响[J]. 高分子材料科学与工程, 2008, 24(1): 120-123 |
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| 作者姓名： | 易回阳 肖建中 |
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| 作者单位： | 湖北师范学院生化分析技术湖北省重点实验室,湖北,黄石,435002;华中科技大学模具技术国家重点实验室,湖北,武汉,430074 |
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| 基金项目： | 湖北省教育厅重点科研资助项目(D200622004)，生化分析技术湖北省重点实验室启动基金资助 |
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| 摘 要： | 在塑炼方法和复合材料组成一定时,用统计学方法,设计了四因子三水平的正交实验以确定不同模压条件对HDPE/CB复合材料PTC强度的影响。结果发现,各设计因素对样品PTC强度的影响大小顺序为:冷却时间>模压温度>模压压力>模压时间。最优模压条件为:模压压力8 MPa,模压温度155℃,模压时间15 min,模压后的冷却时间40 min。在最佳模压成型工艺条件下得到的样品PTC强度为8.4,与统计学的预测结果一致,后NTC强度小于0.8。冷热循环实验结果表明HDPE/CB复合材料有良好的电阻率-温度稳定性。
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| 关 键 词： | 复合材料 PTC强度 正交设计 模压条件 炭黑 |
| 文章编号： | 1000-7555（2008）01-0120-04 |
| 收稿时间： | 2006-08-26 |
| 修稿时间： | 2007-07-10 |
Study on the Influence of Compression Molding Parameters on PTC Intensity of HDPE/CB Composites by Statistical Design |
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| YI Hui-yang,XIAO Jian-zhong. Study on the Influence of Compression Molding Parameters on PTC Intensity of HDPE/CB Composites by Statistical Design[J]. Polymer Materials Science & Engineering, 2008, 24(1): 120-123 |
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| Authors: | YI Hui-yang XIAO Jian-zhong |
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| Affiliation: | 1.Hubei Key Laboratory of Bioanalytical Technique,Hubei Normal University,Huangshi 435002,China;2.State Key Laboratory of Mold Technology,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | In the conditions of plastication and the content of carbon black,HDPE and other fillers in the composites were ensured,orthogonal experiment of four factors and three levels was designed to make sure the influence of compression molding parameters on PTC intensity of HDPE/CB composite by statistical.The optimum compression molding technical parameters for the largest PTC intensity of HDPE/CB composite should be chosen as characteristic values of cooling time 40 minutes,compression molding temperature 155 ℃,compression molding pressure 8 MPa and compression molding time 15 minutes.The expected PTC intensity calculated by statistical experimental design is successfully confirmed with actual experiment results.The PTC intensity of HDPE/CB composites pressed in the optimum compression molding parameters is 8.40,the NTC intensity is less than 0.8.HDPE/CB composites have excellence volume resistivity-temperature stability passed ninth heat-cooling circulations. |
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| Keywords: | composite PTC intensity orthogonal design compression molding parameters carbon black |
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