Preparation Of Toughing And Strengthening GB/Talc/EPDM-g-MAH/PA6 Composite And Its Properties

In this paper, the toughing and strengthening PA6 composites were prepared by adding elastomer (EPDM-g-MAH), glass beads (GB) and Talc. The mechanical performance was examined by mechanical properties test. In addition, the melt and non-isothermal crystallization, thermal properties and micromorphology were investigated by Different Scanning Calorimeter (DSC), Thermogravimetry (TG) and Scanning Electron Microscope (SEM). The main conclusions are as follows:1. The mechanical performance of PA6 composites toughed by EPDM-g-MAH (2wt%MAH) and POE-g-MAH (1.5wt%MAH), respectively, was examined. The results showed that the impact strength of the EPDM-g-MAH/PA6 composite reached 90.1kJ/m2 when the content of elastomer was 18%, which increased 17 times than that of pure PA6, and also better than that of POE-g-MAH/PA6 composite (72.1KJ/m2).2. The impact strength, the tensile strength and flexural strength of GB/EPDM-g-MAH/PA6 composite reached 121.4kJ/m2,76.4 MPa, and 97.3 MPa, respectively, when the GB content was 10 wt%. These values increased 1.3,1.9, and 1.6 times, respectively, than those of EPDM-g-MAH/PA6 composite.3. The Talc(3 wt%)/GB(7 wt%)/EPDM-g-MAH/PA6 composite showed good mechanical performance when inorgnic filler content kept at 10 wt%. The tensile strength, flexural strength and impact strength of the composite were 79.2 MPa、98.7 MPa, and 115.3 kJ/m2 respectively. It is noticed that the impact strength of composite increased 19.2 times than that of pure PA6. DSC and TG analysis demonstrated that the Talc/GB /EPDM-g-MAH/PA6 composite has better thermal stability.