Establishment of Silane/GO Multistage Hybrid Interface Layer to Improve Interfacial and Mechanical Properties of Carbon Fiber Reinforced Poly (phthalazinone ether ketone) Thermoplastic Composites

Abstract

This study focused on the faint interface bonding between carbon fiber (CF) and poly(phthalazinone ether ketone) (PPEK) thermoplastic, a multistage hybrid interface layer was constructed via the condensation reaction of N-[3-(Trimethoxysilyl)propyl]-N,N,N-trimethylammonium chloride (KHN+) and the electrostatic adsorption of graphene oxide (GO). The influence of the contents of GO (0.2 wt%, 0.4 wt%, 0.6 wt%) on the interfacial properties of composites was explored. FTIR, Raman spectra, XPS tests indicated the successful preparation of CF-KHN+-GO reinforcements. The multistage hybrid interface layer significantly increased fiber surface roughness without surface microstructure destruction. Simultaneously, polarity and wettability are remarkably improved as evidenced by the dynamic contact angle experiment. The interlaminar shear strength (ILSS) and flexural strength of the CF/PPEK composites with 0.4 wt% GO (CF-KHN+-4GO) were 74.57 and 1508 MPa, which was 25.2% and 23.5% higher than that of untreated CF/PPEK composite, respectively. Dynamic mechanical analysis proved that CF/GO/PPEK composites have excellent high-temperature mechanical properties. This study furnishes an unsophisticated and valid strategy to build an interface transition layer with a strong binding force, which would offer a new train of thought in preparing high-performing structural composites.

Thermal insulation and mechanical properties of carbon fiber‐reinforced thermoplastic polyphthalazine ether sulfone ketone composites reinforced by hollow glass beads

“…HGB/CF/PPESK composites were prepared using the solution impregnation method 31 . First, HGB was dissolved in NMP solution and sonicated for 30 min to ensure uniform dispersion.…”

“…HGB/CF/PPESK composites were prepared using the solution impregnation method. 31 First, HGB was dissolved in NMP solution and sonicated for 30 min to ensure uniform dispersion. The iron frame was wrapped with carbon fiber and then impregnated with a solution containing PPESK, which had been stirred mechanically for 5 h at 150 C in an oil bath.…”

Role of pharmacological active phthalazine scaffolds in medicinal chemistry

“…Due to their broad application for the treatment of a variety of disorders, phenazine derivatives are attractive therapeutic candidates. Several types of studies have been conducted on the pharmacology of phthalazine derivatives, with several contributions in a variety of fields [1][2][3][4][5]. The chemistry of phthalazine is well-known, and it is frequently employed as an intermediate in the synthesis of numerous compounds in organic chemistry.…”

Analysis of Elastic Properties According to the Aspect Ratio of UHMWPE Fibers Added to PP/UHMWPE Composites

“…Among them, fiber composites are the most widely used and developed materials. The most recently used fiber-reinforcing agent is carbon fiber (CF), which is mixed with various matrix materials [1][2][3][4][5][6][7][8]. However, these carbon fibers are expensive and have disadvantages.…”