4D printed electro-induced continuous carbon fiber reinforced shape memory polymer composites with excellent bending resistance

By C. Zeng, Liwu Liu, W. Bian, Yanju Liu, Jinsong Leng. 2020

170 citations recorded by the source corpus.

Abstract Four-dimensional (4D) printing technology of continuous carbon fiber reinforced shape memory polymer composites is a potential manufacturing process for lightweight and high-strength intelligent composite structures. In this study, a 3D printer with dual feed channels based on the fused deposition modeling (FDM) was designed to fabricate continuous carbon fiber reinforced shape memory poly(lactic acid)-based composites (CFRSMPC). The impact of various printing parameters on the bending strength and flexural modulus of 4D printed CFRSMPC was evaluated by the three-point bending test. Meanwhile, mathematical prediction models of bending strength and modulus based on the existing experimental data were established. The electro-induced shape memory effect of 4D printed CFRSMPC was investigated by the electric heating shape recovery test. The shape recovery rate of the specimens was more than 95%, indicating that the resistance heating method is stable and feasible. The quantitative effect of bending angle and temperature on the resistance of CFRSMPC during the programming and recovery process was further investigated. The results demonstrated that the real-time deformation of the CFRSMPC could be monitored by the resistance measurement method. It can be concluded that the CFRSMPC fabricated using the 4D printing method can serve as potential building blocks for electrically activated and deployable structures.

Subfields: Automotive Engineering, Building and Construction, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/7d6aaa58623a54d8010abedc95851df1958a2069

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In Polymers and Plastics

1. Liwu Liu
2. Yanju Liu
3. Jinsong Leng
4. Jinlian Hu
5. Xin Lan
6. H. Meng
7. S. Du

Citations in the corpus

• Compression behavior and energy absorption of 3D printed continuous fiber reinforced composite honeycomb structures with shape memory effects (2021, methodology): “In the authors’ previous work [32], an FFF-based 3D printing process was applied to prepare continuous carbon fiber reinforced shape memory polymer composites, and the electro-induced shape memory effect of the prepared composites was investigated.”