再生聚丙烯/硫酸钙晶须复合材料的制备

Study on Recycled PP/Calcium Sulfate Whisker Composites

以再生聚丙烯(PP)为基材,加入硫酸钙晶须(CSW)、增韧剂乙烯-辛烯共聚物(POE)、抗氧剂1010、润滑剂聚乙烯(PE)蜡,利用平行双螺杆挤出机制备再生PP/CSW复合材料。研究CSW的用量对复合材料的力学性能、绝缘性能以及流动性能的影响。结果表明:当再生PP为100.0份,CSW为5.0份,POE为3.0份,抗氧剂1010为0.2份,PE蜡2.0份,PP/CSW复合材料的缺口冲击强度为17.2 kJ/m^(2),拉伸强度为22.3 MPa,断裂伸长率为23%,熔体流动速率为3.53 g/10min,体积电阻率为2.34×10^(14)Ω·m。

Recycled PP/CSW composites were prepared by parallel twin-screw extruder with recycled polypropylene(PP)as substrate,calcium sulfate whisker(CSW),toughening agent polyolefin elastomer(POE),antioxidant 1010 and lubricant polyethylene(PE)wax.The effects of CSW content on the mechanical properties,electrical insulation properties and flow properties of the composites were studied.The results show that when the recycled PP is 100.0 phr,CSW is 5.0 phr,POE is 3.0 phr,antioxidant 1010 is 0.2 phr and PE wax is 2.0 phr,the notch impact strength of the composite is 17.2 k J/m^(2),the tensile strength is 22.3 MPa,the elongation at break is 23%,and the melt flow rate is 3.53 g/10 min,the volume resistivity is 2.34×10^(14)Ω·m.