Rheological studies on gas-laden and long glass fiber reinforced polypropylene through an inline high pressure capillary rheometer in the injection molding process
Rheological studies on gas-laden and long glass fiber reinforced polypropylene through an inline high pressure capillary rheometer in the injection molding process
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DOI：
10.1016/j.polymertesting.2018.08.015
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发表时间：
2018-10
期刊：
影响因子：
5.1
通讯作者：
C. Lohr;S. Dieterle;A. Menrath;K. Weidenmann;P. Elsner
中科院分区：
文献类型：
--
作者：
C. Lohr;S. Dieterle;A. Menrath;K. Weidenmann;P. Elsner
介绍了一种新型的在线高压毛细管流变仪（IHCR），它可用于测量长玻璃纤维增强聚丙烯和充气聚丙烯等多种材料在高剪切速率下的粘度。通过该IHCR，可直接在注塑模具中同时生产成型件和测量粘度。以氮气为发泡剂，对聚丙烯（PP）、长玻璃纤维增强聚丙烯（PP-LGF）进行了流变性能测试。为了验证IHCR数据，使用离线毛细管流变仪进行比较测量。此外，在IHCR系统上使用Moldflow进行了熔体流动模拟，以检查纯PP熔体通过热流道系统的流动，并生成进一步的比较数据。
A new inline high pressure capillary rheometer (IHCR) for measurements of viscosity at high shear rates and a wide range of materials such as long glass fiber reinforced and gas laden polypropylene is described. With this IHCR, simultaneous production of molded parts and viscosity measurements are enabled directly in the injection mold. Rheological measurements were carried out with polypropylene (PP), long glass fiber reinforced polypropylene (PP-LGF) with nitrogen (N2) as blowing agent. For validating the IHCR data, an offline capillary rheometer was used for comparative measurement. In addition, a melt flow simulation with Moldflow was carried out on the IHCR system to examine the flow of neat PP melt through the hot runner system and generate further comparative data.