Strength of glass-filled modified polyphenylene oxide vibration-welded butt joints

✍ Scribed by Vijay K. Stokes

• Publisher: Society for Plastic Engineers
• Year: 1991
• Tongue: English
• Weight: 876 KB
• Volume: 31
• Category: Article
• ISSN: 0032-3888
• DOI: 10.1002/pen.760310707

✦ Synopsis

Abstract

The strengths of glass‐filled modified polyphenylene oxide (GF‐MPPO) welds relative to the strengths of GF‐MPPO are shown to depend on specimen thickness. (Modified polyphenylene oxide is a blend of poly (2,6‐dimethyl‐1,4‐phenylene ether) and high‐impact polystyrene.) Relative strengths on the order of 70 and 87 percent can be achieved in 6.1 and 3.18‐mm‐thick specimens, respectively. Welds of GF‐MPPO to modified polyphenylene oxide (MPPO) can easily attain the strength of MPPO, the weaker of the two materials. In contrast to MPPO, in which weld strength decreases with increased weld pressure, the strengths of GF‐MPPO to GF‐MPPO welds and GF‐MPPO to MPPO welds, are not affected by weld pressure.