| 注塑工艺参数对聚丙烯塑料熔体表观黏度的影响 |
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| 引用本文： | 权 非,曹阳根,张 涛,宁 丹,杨尚磊.注塑工艺参数对聚丙烯塑料熔体表观黏度的影响[J].华南农业大学学报(社会科学版),2015,33(3). |
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| 作者姓名： | 权 非 曹阳根 张 涛 宁 丹 杨尚磊 |
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| 作者单位： | 上海工程技术大学材料工程学院，上海201620 |
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| 基金项目： | 国家自然科学基金资助( 51075256) |
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| 摘 要： | 为了研究注塑工艺参数对表观黏度的影响，利用内置在阿基米德螺旋线模具中的Kistler压力传感器，采集聚丙
烯(PP)塑料注塑过程中的数据信号，通过CoMo Injection软件处理数据，得到熔体填充曲线。分析熔体填充曲线，利用
压力差和时间差计算PP塑料熔体在假塑性区的表观黏度和表观剪切速率。结果显示，表观黏度随剪切速率的提高而降
低，有明显的剪切变稀现象。熔体温度增加，模具温度升高和注塑压力加大同样能够降低表观黏度。
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| 关 键 词： | 注塑工艺 聚丙烯 表观黏度 假塑性 |
Effect of Injection Process Parameters on PP Plastic Melt Apparent Viscosity |
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| QUAN Fei,CAO Yanggen,ZHANG Tao,NING Dan,YANG Shanglei.Effect of Injection Process Parameters on PP Plastic Melt Apparent Viscosity[J].Journal of South China Agricultural University:Social Science Edition,2015,33(3). |
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| Authors: | QUAN Fei CAO Yanggen ZHANG Tao NING Dan YANG Shanglei |
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| Institution: | School of Material Engineering , Shanghai University of Engineering Science , Shanghai 201620 , China |
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| Abstract: | In order to study the influence of the injection molding process parameters on the apparent viscosity, collected
the data signals in the process of PP plastic injection molding by using the pressure sensor built-in the Archimedes spiral
mould.obtained the melt filling curve by CoMo Injection software. The apparent viscosity and shear rate were calculated
by analyzing the pressure difference and time difference in pseudoplastic area. The result shows the apparent viscosity
decreases with the increase of shear rate. shear becomes thinning obviously. Increasing melt temperature, mold
temperature and injection pressure can also reduce the apparent viscosity. |
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| Keywords: | injection process polypropylene ( PP) apparent viscosity pseudoplastic |
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