Effects of the 3D sizing of polyacrylonitrile fabric with carbon nanotube–SP1 protein complex on the interfacial properties of polyacrylonitrile/phenolic composites

Abstract

Polyacrylonitrile–phenolic composites display excellent in-plane properties but perform poorly when out-of-plane, through-thickness properties are considered. Composite architectures with carbon nanotubes, either dispersed within the matrix or bound to a fabric, in traditional composites have the potential to alleviate this weakness. However, effective reinforcement of composites using carbon nanotubes is difficult, due to poor dispersion and interfacial stress transfer and has thus far been met with limited success and at high costs. This paper describes an innovative and cost-effective technology to improve these inferior mechanical properties by using an exceptionally stable protein, SP1, for CNT attachment to PAN fabric, forming a three-dimensional nano-reinforced structure. This work confirms remarkable improvements in interlaminar shear strength and through-thickness tensile strength of SP1/CNT-reinforced polyacrylonitrile composites.

Investigation on the flexural response of multiscale anisogrid composite panels reinforced with carbon fibers and multi-walled carbon nanotubes

“…As a result, the applied load can be effectively transferred from the matrix to the fiber reinforcement. [31][32][33][34][35][36][37] When the matrix is modified with MWCNTs, the slippage of different layers (especially between fibers and matrix) against applied load is restricted, resulting in better stress transferring to the fibers.…”

High Temperature Composites From Renewable Resources: A Perspective on Current Technological Challenges for the Manufacturing of Non-Oil Based High Char Yield Matrices and Carbon Fibers

“…Moreover, different researchers reported the effect of the use of nanostructured phenolic matrices (Natali et al, 2016;Natali et al, 2012;Rallini at al., 2017;Natali et al, 2011a;, Natali et al, 2011b) on the ablation resistance of the derived carbon/phenolic laminates. Among these researches, some efforts were successfully spent to identify special fillers or chemical modifiers aimed at improve the ILSS of carbon/phenolic composites (Yeh et al, 2006;Lyashenko et al, 2013;Abramovitch et al, 2015;Wang et al, 2006;Wolf et al, 2012;Srikanth et al, 2010).…”