The Effect of Injection Molding Process Parameters on the Buckling Properties of PBT/Short Glass Fiber Composites

Abstract:

This study investigates the effect of various injection molding process parameters and fiber amount on buckling properties of Polybutylene Terephthalate (PBT)/short glass fiber composite. The buckling specimens were prepared under injection molding process. These forming parameters about filling time, melt temperature and mold temperature that govern injection molding process are discussed. The buckling properties of neat PBT, 15 wt%, and 30 wt% are obtained using two ends fixed fixture and computerized closed-loop server-hydraulic material testing system. The fracture surfaces are observed by scanning electron microscopy (SEM). The global buckling forces are raised when increased the fiber weight percentage of PBT. Also, the fracture mechanisms in PBT and short glass fiber matrix are fiber pullout in skin area and fiber broken at core area. It is found that the addition of short glass fiber can significantly strengthen neat PBT.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 550-556
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.550
• Online since: July 2011
• Authors: Ming Hsiung Ho, Pin Ning Wang, Chin Ping Fung
• Keywords: Buckling Properties, Fiber-Reinforce Polybutylene Terephthalate, Injection Molding, PBT

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