Imidazolium Salt for Enhanced Interfacial Shear Strength in Polyphenylene Sulfide/Ex-PAN Carbon Fiber Composites

• Published in: Polymers Vol. 14; no. 17; p. 3692
• Main Authors: Gaumond, Baptiste, Livi, Sébastien, Gérard, Jean-François, Duchet-Rumeau, Jannick
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.09.2022; MDPI
• Subjects: Annealing; Carbon fiber reinforced plastics; Carbon fibers; Chemical Sciences; Composite materials; composites; Engineering Sciences; Epoxy resins; Fiber composites; Fourier transforms; imidazolium salt; Interfacial shear strength; interphases; Mechanical properties; Mechanics; Mechanics of materials; micromechanical tests; Polymer blends; Polymer films; Polymers; Polyphenylene sulfides; Polyphenylene sulphide; Shear strength; Thermoplastics; France; Germany; United States > US; composites; thermoplastics; interphases; imidazolium salt; micromechanical tests
• ISSN: 2073-4360; 2073-4360
• DOI: 10.3390/polym14173692

Processing structural or semi-structural thermoplastic-based composites is a promising solution to solve the environmental issues of the aeronautic industry. However, these composites must withstand high standard specification to ensure safety during transportation. For this reason, there is a real need to develop strong interactions between thermoplastic polymers and reinforcement fibers. This paper investigates relationships between the surface chemistry, microstructure and micromechanical properties between polyphenylene sulfide and ex-PAN carbon fibers. The incorporation of ionic salt such as 1,3-Bis(4-carboxyphenyl)imidazolium chloride into neat polyphenylene sulfide was able to significantly increase the interfacial shear strength measured by microbond micromechanical test combined with different carbon fiber surfaces treatment.