Development of conductive coated Polyether ether ketone (PEEK) filament for structural health monitoring of composites

Towards the Functional Ageing of Electrically Conductive and Sensing Textiles: A Review

“…The percolation theory in combination with Poisson’s law was used by Hasan et al to model the course of the electrical resistance during the elongation of a silver particle-coated polyether ether ketone fibre. The change in volume during stretching caused a change in the volume fraction of the silver particles, followed by a change of the electrical resistance [ 163 ]. Often, the percolation theory is also drawn for the explanation of evolving damage.…”

Study of the microstructure formation mechanisms of poly(ether‐ether‐ketone) monofilaments via melt spinning

“…[3][4][5][6][7][8][9][10] PEEK has been widely utilized in the aerospace, biomedical, vehicle, and electronics industries because it can be expediently processed into various products with varying shapes such as coating, 11 film, [12][13][14][15][16][17][18] molded part, 19 fibers. [20][21][22][23][24] It also has been combined with carbon fiber in composite materials. 19,[25][26][27] PEEK fibers are manufactured using traditional melt-spinning technology.…”

“…In addition, PEEK coarse denier monofilaments have been used in conveyor belt materials, filtration materials, and tennis and badminton racquet strings. [20][21][22][23]28,29 Numerous studies on PEEK fibers have evaluated their molecular weight, spinnability, and processing parameters with respect to structural and mechanical properties. For example, Ohkoshi et al investigated the effect of PEEK's molecular weight on the melt spinning and drawing processes, special emphasis is placed on strain-induced crystallization during spinning of highmolecular weight PEEK and higher mechanical properties and spinnability compared to lower.…”

Enhanced Interfacial Properties of High-Modulus Carbon Fiber Reinforced PEKK Composites by a Two-Step Surface Treatment: Electrochemical Oxidation Followed by Thermoplastic Sizing

“…In general, the PAEK polymers consist of several plastics, such as polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polyetherketone (PEK), polyetheretherketoneketone (PEEKK), and so on [3][4][5][6]. As a family of semi-crystalline thermo-plastics, PEEK and PEKK polymers have many outstanding properties such as better resistance to creep deformation, excellent thermal stability, good resistance to chemicals and solvents, and flame retardancy [7][8][9][10][11][12]. During the past decades, carbon fiber (CF) reinforced PEEK composites have been widely used in aviation and aerospace [13][14][15].…”

“…However, the applications of CF/PEKK composites are somewhat limited due to the chemical inertness of CFs and poor wettability between CFs and PEKK matrix. So far, there is a lack of investigations on the interfacial properties between CFs and PEKK [3], and many researches focus on the preparation and properties of CF/PEEK composites [10][11][12][13][14][15][16][17][19][20][21][22][23][24][25][26][27][28]. In order to improve the interfacial properties of CF/PEEK composites, various types of surface treatment methods have been conducted onto CF surfaces such as liquid-phase oxidation [19], plasma treatment [20,21], gas oxidation [22,23] and grafting functional groups [15,24].…”