• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 27 Issue 6
Dec.  2014
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Article Contents
CHEN Xiaolang, SUN Zhidan, MA Yonghong, ZHANG Zhibin, YU Jie. Effect of Surface Treatment on Properties of HDPE/EVA/EG Composites[J]. Journal of Southwest Jiaotong University, 2014, 27(6): 1097-1101. doi: 10.3969/j.issn.0258-2724.2014.06.024
Citation: CHEN Xiaolang, SUN Zhidan, MA Yonghong, ZHANG Zhibin, YU Jie. Effect of Surface Treatment on Properties of HDPE/EVA/EG Composites[J]. Journal of Southwest Jiaotong University, 2014, 27(6): 1097-1101. doi: 10.3969/j.issn.0258-2724.2014.06.024

Effect of Surface Treatment on Properties of HDPE/EVA/EG Composites

doi: 10.3969/j.issn.0258-2724.2014.06.024
  • Received Date: 01 Mar 2013
  • Publish Date: 25 Dec 2014
  • In order to obtain the composites with good thermal stability, flammability, and mechanical properties, high density polyethylene/ethylene-vinyl acetate copolymer (HDPE/EVA) composites filled with expandable graphite (EG) flame retardant were prepared by using a twin-screw extruder technique. The thermal stability, flammability, and mechanical properties of the composites were investigated by the thermogravimetric analysis (TGA), cone calorimeter, mechanical properties tests, and scanning electron microscopy (SEM). The results indicated that the addition of EG significantly enhanced the thermal stability and fire resistance of the HDPE/EVA materials, but obviously decreased the mechanical properties of HDPE/EVA/EG. After the surface treatment of EG with titanate coupling agent, the elongation at break of HDPE/EVA/EG composites increased from 232.3% to 315.3%, the tensile strengths increased from 9.0 to 10.0 MPa, and the impact strengths increased from 88 to 129 kJ/m2. The improvement of the mechanical properties of HDPE/EVA/EG composites was due to the enhancement of interfacial adhesion between EG and polymer matrix.

     

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