Work

Study on mechanical properties of PBT matrix composites reinforced with surface-modified recycled glass fiber for propellant liner applications

Year: 2025

Type: article

Abstract: In order to investigate the effect of recycled glass fiber (RGF) from decommissioned wind turbine blades on the mechanical properties of polybutylene terephthalate (PBT) matrix materials, this paper presents the surface modification of RGF with the cationic surfactant cetyltrimethylammonium bromide (CTAB) and the silane coupling agent γ-ammino-propyltriethoxysilane (KH550) as the modifying agents. In this experiment, the modified RGF/PBT composites were prepared by injection moulding method. The chemical structure of modified RGF was investigated by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The mechanical properties of RGF/PBT composites were investigated by tensile test, impact test and bending test. The results showed that the experiment successfully introduced CTAB and KH550 to the surface of RGF, and prepared surface-modified RGF, which improved the interfacial bonding strength between RGF and PBT matrix, resulting in the improvement of the mechanical properties of the modified RGF/PBT composites, and the RGF composites obtained by the KH550 modification had better properties.

Source: FirePhysChem

DOI: 10.1016/j.fpc.2025.03.002

Authors: Yanlei Qu, Lei Niu, Jianlin Xu, Shibo Ren, Lingfeng Yang

Institution: Lanzhou University of Technology

Language: English

Topic: Fiber-reinforced polymer composites

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

Funder: Science and Technology Program of Gansu Province