Multi-scale interphase construction of self-assembly naphthalenediimide/multi-wall carbon nanotube and enhanced interfacial properties of high-modulus carbon fiber composites

Synergistically enhanced ultraviolet aging resistance and interfacial adhesion of poly (p‐phenylene benzobisoxazole) fiber with soluble naphthalimide sizing

“…Synthetic schematic of amino-terminated NDI is shown in Scheme 1 according to our previous work. [22] And 1.5%, 2.0%, and 2.5% NDI/EtOH solution were obtained for sizing of PBO fibers.…”

“…Figure 1A shows FTIR spectra of NTCDA, PEA, and NDI. The characteristic peaks at 1860, 1780, and 1235 cm −1 were assigned to the stretching vibration of C O and C O in cyclic anhydride groups of NTCDA, [22] while the characteristic absorption of C O C in PEA appeared at 1108 cm −1 . The peaks at 1700, 1670, and 1335, 1250 cm −1 , corresponding to the stretching vibration of C O and C N of imide groups, verified the successful imidization of NTCDA.…”

“…Eventually, there were no obvious macroscopic defects on NDI-PBO fiber surface after UV aging, except some agglomerated NDI due to inter-molecular interaction. [22,36] The increased surface roughness and wettability of NDI-PBO fiber facilitated the formation of mechanical interlocking, [37] while the interfacial bonding was further enhanced by the reaction between NDI sizing and epoxy matrix. Furthermore, the well interfacial adhesions between fiber and matrix could reduce infiltration of water and oxygen into fiber surface, which prevented acceleration of UV aging of PBO fiber composites.…”

A novel eco-friendly strategy on the interfacial modification of a carbon-fiber-reinforced polymer composite via chitosan encapsulation

“…17 However, nano-particles or single macromolecules are only attached to the surface of the fiber through simple mechanical interlocking and physical interactions and have little effect on the interface. 20 Chu et al studied the sizing of the carbon dot bridging sizing agent on the surface of the CFs to improve the interface between the fiber and resin. 21 Wu et al used polydopamine (PDA) to modify the interface of CFs to prepare high-performance composite materials with a designable interface bonding strength.…”

Combined effects of interface modification and micro-filler reinforcements on the thermal and tribological performances of fabric composites

“…Over the past years, our research group has carried out numerous related research studies on the tribological performance of the hybrid-fabric composite's design and considerable progress has been made [9][10][11]. Nevertheless, the weak interfacial adhesion between the fibers and the matrix, due to the low surface energy characteristics and smooth surfaces of PTFE and reinforced fibers, 2 Friction | https://mc03.manuscriptcentral.com/friction remains a limiting factor in the improvement of the overall properties of the resulting fabric composites [12][13][14]. In addition, the poor thermal properties of most polymer matrices suggest that they cannot dissipate friction heat efficiently and provide effective carrying capacity at the sliding interfaces, further inhibiting their performance and reliability [15,16].…”