期刊
POLYMERS
卷 14, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/polym14214659
关键词
additive manufacturing; fused filament fabrication; 3D printing; fiber reinforced thermoplastics; fiber reinforced polymer composites; continuous fiber; short fiber
资金
- Malaysia Ministry of Higher Education (MOHE) [FRGS/1/2019/TK03/HWUM/02/01]
Fused Deposition Modelling (FDM) is a rapidly developing additive manufacturing technology that can produce complex shapes in a short time. However, the mechanical properties of FDM printed parts are weaker than conventionally manufactured products. This review focuses on fiber reinforcement to improve the mechanical, thermal and electrical properties of FDM printed parts. Different fiber types, fiber insertion techniques, and manufacturing methods are discussed. Three different methods of embedding fibers in thermoplastics are briefly reviewed, and the performance of the composites produced by these methods is discussed.
Fused Deposition Modelling (FDM) is an actively growing additive manufacturing (AM) technology due to its ability to produce complex shapes in a short time. AM, also known as 3-dimensional printing (3DP), creates the desired shape by adding material, preferably by layering contoured layers on top of each other. The need for low cost, design flexibility and automated manufacturing processes in industry has triggered the development of FDM. However, the mechanical properties of FDM printed parts are still weaker compared to conventionally manufactured products. Numerous studies and research have already been carried out to improve the mechanical properties of FDM printed parts. Reinforce polymer matrix with fiber is one of the possible solutions. Furthermore, reinforcement can enhance the thermal and electrical properties of FDM printed parts. Various types of fibers and manufacturing methods can be adopted to reinforce the polymer matrix for different desired outcomes. This review emphasizes the fiber types and fiber insertion techniques of FDM 3D printed fiber reinforcement polymer composites. A brief overview of fused deposition modelling, polymer sintering and voids formation during FDM printing is provided, followed by the basis of fiber reinforced polymer composites, type of fibers (synthetic fibers vs. natural fibers, continuous vs. discontinuous fiber) and the composites' performance. In addition, three different manufacturing methods of fiber reinforced thermoplastics based on the timing and location of embedding the fibers, namely 'embedding before the printing process (M1)', 'embedding in the nozzle (M2)', and 'embedding on the component (M3)', are also briefly reviewed. The performance of the composites produced by three different methods were then discussed.
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