三螺杆动态混炼挤出HDPE／Mg(OH)2填充体系的力学性能

The Mechanical Properties of HDPE/Mg(OH)_2 as a Filling System in Tri-Screw Dynamic Mixing Extruder

从加工工艺和设备改进入手改善Mg(OH)2在高密度聚乙烯(HDPE)中的分散性。将电磁振动技术和三螺杆挤出机结合起来,用三螺杆动态混炼挤出机挤出HDPE/Mg(OH)2,通过对挤出物料中Mg(OH)2的分散性研究,得出三螺杆动态混炼对Mg(OH)2的分散性和HDPE/Mg(OH)2力学性能的影响规律,并对在不同振动参数(振幅、频率)下制取标准力学性能测试试样与稳态挤出时试样力学性能的比较获取最优的振动参数范围,解决了因Mg(OH)2填充量过高而严重影响复合材料力学性能的问题。

With processing technology and equipment improvements, improve the dispersion of Mg（OH）2 in the high density polyethylene （HDPE）. HDPE/Mg（OH）2 was made out of tri-serew dynamic mixing extruder, which is combined with the electromagnetic vibration technology. Study on the dispersion of Mg（OH）2 in HDPE. The results show the effects of tri-screw dynamic mixing on the dispersion of HDPE and the mechanical properties of HDPE/Mg （OH）2. In the vibration of different parameters （amplitude, frequency）, prepare the standard mechanical properties samples, and compare them with the samples out of state. The result shows the best range of vibration frequeneies and amplitudes. The study resolves the negative impact of high-filled Mg（OH）/on the mechanical properties of HDPE/ Mg（OH）2.