Electrothermally actuated properties of fabric-reinforced shape memory polymer composites based on core–shell yarn. (15th July 2022)

• Record Type: Journal Article
• Authors: Qi, Yingying; Sun, Baozhong; Gu, Bohong; Zhang, Wei
• Is Part Of: Composite structures. Volume 292(2022)
• Publication Date: 2022-07-15
• Subjects: Shape memory composite -- Continuous carbon fiber -- Composite fabric -- Electrothermal responsive -- Thermoplastic resin; Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2022.115681
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: Electrothermally actuated and mechanical properties are important for multifunctional application of fabric-reinforced shape memory polymer composites (SMPCs). Here we presented a new method to prepare the fabric-reinforced shape memory polymer thermoplastic composite molded with plain composite fabric. The composite fabric was weaved with continuous carbon fiber/shape memory polyurethane (CCF/SMPU) core–shell structure yarn. The effects of microstructure, layer number and carbon fiber (CF) content on flexural property, thermo-mechanical, shape recovery behaviors of SMPCs were studied. The flexural load and storage modulus were improved due to the introduction of carbon fiber. The shape recovery ratio of SMPCs could reach 99.3% under thermal and electrical stimulation. Some demonstrations of the SMPCs showed excellent electro-thermal recovery and higher deformability. The yarn and fabric structure are expected to have good potential in smart structure design.