Continuous carbon fiber reinforced thermoplastic resin composites (CFRTPCs) are widely used in various fields due to their advantages of light weight and high strength. In the 3D printing process of composite materials, carbon fiber is used as reinforcement, and the interface bonding performance between carbon fiber and resin is a key factor affecting the mechanical properties of materials. In order to improve the mechanical properties of 3D printed continuous carbon fiber reinforced polycarbonate (PC) composites, the continuous carbon fiber was pretreated with different concentrations of water-based PC sizing agent, and studied the influence rule of sizing agent concentration change on sizing quantity of continuous carbon fiber. By using polycarbonate as the matrix, print the composite structural parts with continuous carbon fiber and different sizing amount of carbon fiber prepreg filament as the reinforcements respectively. Then, the surface morphology of continuous carbon fiber before and after sizing was observed and compared, and the effect of sizing treatment on the mechanical properties of the composite was analyzed. The results showed that with the increase of sizing agent concentration, the sizing amount of continuous carbon fiber increased, but the increase gradually slowed down, and the surface roughness of continuous carbon fiber after sizing increased, and the internal single filament interface was improved. The mechanical properties of prepreg filament composites with different sizing amount are improved compared with those of carbon fiber original filament composites. Under the experimental conditions described in this paper, the 29.59% sizing amount corresponding to 40% sizing agent is the optimal sizing amount of continuous carbon fiber. Compared with the original carbon fiber filament composite, the flexural strength, flexural modulus, tensile strength, interlaminar shear strength and impact strength of the optimal prepreg filament composite were increased by 15.82%, 75.58%, 90.9%, 57.22% and 56.45%, respectively.
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The 32nd International Ocean and Polar Engineering Conference
June 5–10, 2022
Shanghai, China
Study on Properties of Continuous Carbon Fiber Prepreg Filament Reinforced Composites Based on 3D Printing
Angang Wang;
Angang Wang
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Ji Wang;
Ji Wang
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian / Collaborative Innovation Center for Advanced Ship and Deep-sea Exploration / State Key Laboratory of Structural Analysis for Industrial Equipment
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Yujun Liu;
Yujun Liu
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Rui Li;
Rui Li
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Xiao Liu;
Xiao Liu
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Huibin Li;
Huibin Li
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Gengrui Hao;
Gengrui Hao
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Chenlong Li
Chenlong Li
School of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian
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Paper presented at the The 32nd International Ocean and Polar Engineering Conference, Shanghai, China, June 2022.
Paper Number:
ISOPE-I-22-412
Published:
June 05 2022
Citation
Wang, Angang, Wang, Ji, Liu, Yujun, Li, Rui, Liu, Xiao, Li, Huibin, Hao, Gengrui, and Chenlong Li. "Study on Properties of Continuous Carbon Fiber Prepreg Filament Reinforced Composites Based on 3D Printing." Paper presented at the The 32nd International Ocean and Polar Engineering Conference, Shanghai, China, June 2022.
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