Modified continuous carbon fiber‐reinforced poly(phthalazinone ether sulfone ketone) composites by blending polyetherimide and polyethersulfone

Abstract

Poly(phthalazinone ether sulfone ketone) (PPESK) is a novel high performance thermoplastic with outstanding high temperature resistance and excellent mechanical properties and therefore, it is a very ideal candidate matrix for advanced composites. However, its high melting viscosity makes the melting process difficult. In this article, two well-known high performance thermoplastics, polyetherimide (PEI) and polyethersulfone (PES) were introduced to PPESK in order to reduce the melting viscosity of PPESK and to improve the properties of composites. The effect of addition of PEI and PES on the resultant composites was studied. A series of unidirectional composites were made of PPESK and its PEI and PES blends as matrix and continuous carbon fiber (T700) as reinforcement. The solution prepregging method and hot-press molding method were used in preparation of composites. The effects of polymer blends matrix on mechanical properties, interfacial adhesion, and fracture mode were studied by three points bending, interlaminar shearing, porosity, and scanning electron microscope test. The results show that the mechanical properties and interfacial adhesion increases, and the porosity decrease after blending PEI or PES in the matrix. Addition of PEI and PES to PPESK results in an obvious transition of fracture mode.

Interfacial shear strength in carbon fiber‐reinforced poly(phthalazinone ether ketone) composites

“…Recently, continuous carbon fiber (CF)‐reinforced high performance thermoplastic composites have been one of the most attractive materials for high‐performance application with the advantages of unlimited shelf‐life, recyclability, cost‐effective processing, and excellent toughness compared to those thermoset composites . Various thermoplastic matrices such as poly(ether ether ketone), poly (phenylene sulfide sulfone), polyether imide, and poly(phthalazinone ether ketone) (PPEK) have been explored to evolve demanding needs in composites with high thermal stability and excellent mechanical properties .…”

High-performance PEN/GF crosslinkable thermoplastic composites: preparation, properties, and crosslinking reaction

“…At present, continuous fiber-reinforced high-performance thermoplastic composites are one of the most attractive materials for high-performance applications where high temperature stability and damage resistance are required. 1 The thermal and mechanical properties of the composites depend on the mechanical properties of fibers, and the matrix resin's thermal stability and mechanical properties. In order to fully utilize the stiffness and strength of the reinforcement fibers, it is necessary to bring the thermoplastic matrix and the reinforcement fibers together with homogeneous wetting.…”

Comprehensive Review of the Properties and Modifications of Carbon Fiber-Reinforced Thermoplastic Composites

“…They concluded that the strength, modulus, hardness and wear resistance, the elongation at break, and hardness of the PPS/PTFE composites were improved by introducing 15 vol.% of CF compared with the unreinforced blend matrix. Different composites based on polymer blends have been carried out by Zheng et al [90], who prepared a blend of PEI/PES thermoplastics and introduced them into poly(phthalazinone ether sulfone ketone) (PPESK) polymers as a matrix and CCF as the reinforcement of PPESK/CF composites. They investigated both PPESK/PEI/CF and PPESK/PES/CF composites' mechanical properties.…”