Thermal conductivity and mechanical properties enhancement of CF/PPBESK thermoplastic composites by introducing graphene

Abstract

Design and preparation structure/function integrated polymer composites with high thermal conductivities and ideal mechanical properties have attracted widespread attention. Nanoscale graphene were employed to fabricate the thermal-structural integration graphene/carbon fiber/copoly (phthalazinone ether sulfone ketone) composites via solution prepreg followed by hotcompression method. The thermal conductivity (λ) and mechanical properties were all improved with the formation of graphene thermally conductive selfreinforced network. The thermal conductivity was increased to 1.057 W/(m K) by 89.8% higher than the pure carbon fiber composites. Moreover, the flexural strength (1878 MPa), compressive strength (907 MPa) and interlaminar shear strength (66 MPa) of graphene-modified composites improved with 22.1%, 51.9%, and 24.5% than the conventional composites, respectively. Dynamic mechanical analysis has proved that graphene/carbon fiber/copoly (phthalazinone ether sulfone ketone) composites had excellent high temperature mechanical properties, which presented a great potential for structure/ function integrated composites. K E Y W O R D Scarbon fiber composite, structure/function integrated, thermal conductivity | INTRODUCTIONCarbon fiber (CF) reinforced thermoplastic composites (CFRTPs) have become the crucial materials via excellent performance in multiple fields. The optimized combination of high-performance CF and various resin matrix (polyetherimide, polyphenylene sulfide, polyetherketoneketone, etc.) can meet the development requirements of aerospace, military, general aviation, satellite, energy, automobile and electronics industry for advanced materials with lightweight, high strength, high impact resistance and high temperature resistance. [1][2][3][4][5][6] As a new type of high-performance engineering plastic, copoly (phthalazinone ether sulfone ketone)

Performance for Fly Ash Reinforced HDPE Composites over the Ageing of Material Components

“…Petroleum-derived thermoplastics are amongst the best choices for matrix materials, and the selection of reinforcing elements include but are not limited to carbonous particles or a mixture of such kinds [ 2 , 11 , 12 , 13 ], non-carbonous particles [ 14 , 15 , 16 , 17 ], carbon fibre, glass fibres and cellulose fibres. Nanoparticles, such as carbon nanotubes [ 18 , 19 ] and graphene [ 20 , 21 , 22 ] reinforced composites have also attracted a high degree of interest. However, the widespread uses of these nanocomposites for engineering applications and frequent use may create unintentional pollution of land or water due to nanoparticle release over time, increasing the risks of exposure to humans [ 23 , 24 , 25 ].…”

Mechanical, thermal, and electrical properties of amine‐ and non‐functionalized reduced graphene oxide/epoxy carbon fiber‐reinforced polymers

“…In contrast to this, both g‐CFRP configurations exhibited very coarse fracture surfaces and a considerable number of matrix fragments situated close to the carbon fibers. This behavior indicates an improved interfacial adhesion in conjunction with an enhanced crack deflection and, consequently, a higher crack resistance 72,73 . If a suitable loading of the used particle is incorporated into the composite material, this typically results in an increased shear strength of g‐FRPs in comparison to traditional FRPs 74,75 .…”

“…This behavior indicates an improved interfacial adhesion in conjunction with an enhanced crack deflection and, consequently, a higher crack resistance. 72,73 If a suitable loading of the used particle is incorporated into the composite material, this typically results in an increased shear strength of g-FRPs in comparison to traditional FRPs. 74,75 Nonetheless, aspects such as poor interfacial adhesion, 58,76 an agglomeration of the used additives, 73,77 or an unsatisfactory sample quality 55,78 may limit this performance.…”

Improvement of “point‐plane”‐like hetero‐structured fillers on thermal conductivity of poly(vinyl alcohol) composites

“…[3,4] However, the intrinsic thermal conductivity (TC) of neat polymer, in the range of 0.2-0.5 W/(mÁK), cannot fulfill the thermal diffusion requirement of highpower electronic devices. [5,6] In order to obtain exceptionally thermally conductive polymers, several nanofillers, such as carbon-based nanomaterials (graphene, carbon nanotubes), [7][8][9] metal fillers (Ag, Cu, and Fe), [10][11][12] ceramic fillers (Al 2 O 3 , SiC, and BN), [13][14][15] and hybrid fillers [16][17][18] have been introduced in the polymer matrix. Hexagonal boron nitride (h-BN), a typical two-dimensional ceramic material, has received wide attention owing to its unique properties, including electrical insulation, TC with high value and anisotropy, good thermal stability, and mechanical properties.…”