Effect of SDS and PVP Surfactants on the Stability of Water‐Based PEKK Suspension and Mechanical Properties of CF / PEKK Prepreg Tapes
Year: 2025
Type: article
Abstract: ABSTRACT The preparation of carbon fiber reinforced polyetherketoneketone (CF/PEKK) prepreg tapes using water‐based solvents instead of the traditional flammable and explosive alcohol solvent system is a green, safe, and challenging task. In this study, the water‐based PEKK suspension stabilized by the synergy of sodium dodecyl sulfate (SDS) and polyvinylpyrrolidone (PVP) was used to prepare CF/PEKK prepreg tapes. The effect of SDS and PVP surfactants on the stability of the water‐based PEKK suspension and the mechanical properties of CF/PEKK prepreg tapes was investigated. The results showed that SDS and PVP significantly enhanced PEKK wetting performance, achieving the optimal suspension stability at 1 wt% SDS and 0.5 wt% PVP with a stirring rate of 600 rpm. The tensile strength of CF/PEKK prepreg tape prepared using the optimal suspension solution reached 1601 MPa, which was 24.8% and 13.7% higher than that of the systems using SDS and PVP alone, and 4.6% higher than that of the traditional ethanol‐based system. This water‐based PEKK suspension presents a promising approach for manufacturing high‐performance CF/PEKK prepreg tapes and promotes the industrial application of thermoplastic composites.
DOI: 10.1002/app.70092
Authors: Xianglong Suo, Zhaopeng Tian, Shuhua Dong, Binglin Wu, Zhitao Lin, Hongsheng Tan, Fantao Meng
Institution: Shandong University of Technology
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Award: G5507394893
OpenAlex ID: W4416767707