Influence of cooling rate on the properties of carbon fiber unidirectional composites with polypropylene, polyamide 6, and polyphenylene sulfide matrices. (2nd January 2020)

• Record Type: Journal Article
• Authors: Taketa, I.; Kalinka, G.; Gorbatikh, L.; Lomov, S. V.; Verpoest, I.
• Is Part Of: Advanced composite materials. Volume 29:Number 1(2020)
• Page Start: 101
• Page End: 113
• Publication Date: 2020-01-02
• Subjects: thermoplastic prepreg -- unidirectional composites -- cooling rate -- matrix residual stress -- interfacial strength; Composite materials -- Periodicals; Reinforced plastics -- Periodicals; Electronic journals; 620.11805
• DOI: 10.1080/09243046.2019.1651083
• Languages: English
• ISSNs: 0924-3046

Abstract

Abstract : The longitudinal and transverse strength of three unidirectional thermoplastic prepreg systems: carbon fiber/polypropylene (CF/PP), polyamide 6 (CF/PA6), and polyphenylene sulfide (CF/PPS) are studied and analytical formulas are proposed for the estimation of matrix and fiber/matrix interface properties from composites properties. Since the matrices are semi-crystalline thermoplastics, the influence of cooling rate on the strength is statistically evaluated. While the 0º tensile strength is found to be independent of the cooling rate, the 90º tensile strength is strongly influenced by the matrix type and cooling rate. The matrix modulus increases as the cooling rate is decreased; the degree of crystallinity also increases. The matrix residual stress, interfacial shear strength, and mode II interlaminar fracture toughness are also found to depend on the cooling rate, with the trends different for different matrices.