Presentation Title

High-Strength Thermoplastic Polymers as Composite Matrix Material

Faculty Mentor

Dr. Cassandra Degen

Start Date

18-11-2017 12:30 PM

End Date

18-11-2017 1:30 PM

Location

BSC-Ursa Minor 116

Session

Poster 2

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Recent advances in the development of high-strength thermoplastic polymers are increasing their use as composite matrix material. Their ability to be easily melted and re-solidified increases the ease of manufacturing and recyclability as compared to traditional thermoset matrix composited. As the use of these thermoplastic matrix composites (TMPCs) increases, a need for joining techniques for TMPCs is prevalent. The TPMCs used in this research was polypropylene with 30% chopped glass fibers. The method of joining TPMCs investigated in this work was ultrasonic spot welding (USSW), a method which joins material by using high frequency, low amplitude vibrations to locally melt and re-solidify the material. Previous work showed bond area is directly correlated to the strength of the bond, but little is known about the effect of specific welding parameters. In this work, bond area was measured through a variety of non-destructive optical and destructive techniques and lap shear samples were produced and tested for measurement of bond strength. The correlation of USSW parameters and bond area and strength from this work will be used to guide the production of high strength bonds in TMPCs.

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Nov 18th, 12:30 PM Nov 18th, 1:30 PM

High-Strength Thermoplastic Polymers as Composite Matrix Material

BSC-Ursa Minor 116

Recent advances in the development of high-strength thermoplastic polymers are increasing their use as composite matrix material. Their ability to be easily melted and re-solidified increases the ease of manufacturing and recyclability as compared to traditional thermoset matrix composited. As the use of these thermoplastic matrix composites (TMPCs) increases, a need for joining techniques for TMPCs is prevalent. The TPMCs used in this research was polypropylene with 30% chopped glass fibers. The method of joining TPMCs investigated in this work was ultrasonic spot welding (USSW), a method which joins material by using high frequency, low amplitude vibrations to locally melt and re-solidify the material. Previous work showed bond area is directly correlated to the strength of the bond, but little is known about the effect of specific welding parameters. In this work, bond area was measured through a variety of non-destructive optical and destructive techniques and lap shear samples were produced and tested for measurement of bond strength. The correlation of USSW parameters and bond area and strength from this work will be used to guide the production of high strength bonds in TMPCs.