Microstructure and fracture behavior of maleated high-density polyethylene/ silicon carbide nanocomposites toughened with poly(styrene-ethylene-butylene-styrene) triblock copolymer

✍ Scribed by Cheng Zhu Liao; Su Ping Bao; Sie Chin Tjong

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 806 KB
• Volume: 30
• Category: Article
• ISSN: 0730-6679
• DOI: 10.1002/adv.20228

✦ Synopsis

Maleated high-density polyethylene (mPE) consisting of 95 wt% high-density polyethylene and 5 wt% polyethylene-graft-maleic anhydride was filled with 2-4 wt% silicon carbide nanoparticles (SiC p ) and toughened with 10-30 wt% poly(styrene-ethylene-butylene-styrene) (SEBS). Such mPE nanocomposites were compounded in a twin-screw extruder followed by injection molding. The effects of SEBS elastomer and SiC p additions on the structure, thermal and mechanical behavior, and fracture toughness of mPE composites were studied using X-ray diffraction (XRD), polarizing optical microscopy (POM), differential scanning calorimetry (DSC), heat deflection temperature (HDT), tensile test, Izod impact, and essential work of fracture