Study on performance characteristics of fused deposition modeling 3D‐printed composites by blending and lamination

Abstract

Component contacting degree in a composite material is an important reference for evaluation the performance characteristics. In this article, two composite material systems involving polylactic acid (PLA) with acrylonitrile butadiene styrene (ABS) and PLA with thermoplastic polyurethane (TPU) were prepared by blending and laminating through fused deposition modeling (FDM) 3D printing technology. The mechanical and thermal properties of the as-prepared composite materials were examined. The results indicated that PLA and TPU played a dominant role in tensile strength and breaking elongation, respectively, in individual composite material. ABS and TPU changed the glass transition peek, crystallinity, and modulus of PLA. The results also suggested that although the processing design of the blending method was more suitable for the contact between two components, but the mechanical properties of laminated composites were closer to theoretical predictions. The structural design and processing technology provide a comparative method and reference basis for studying the performance characteristics of composite materials.

Performance evaluation on particle‐reinforced rigid/flexible composites via fused deposition modeling3Dprinting

“…These different pellets were then made into standard 3D printed filaments (diameter 1.70 mm) through a micro single-screw extruder (WSJ-12; Shanghai Xin-Shuo Precision Instrument Machinery Co., Ltd., China) as well as a drafting and winding device. 5 Finally, the rheological and tensile samples were printed using an FDM 3D printer (Dk2, Guangdong Shanrui Technology Co., Ltd., China). Their shapes referred to Figures 1 and 2.…”

“…Therefore, the different proportions of blended 3D printing consumables made of poly(lactic acid) (PLA) and thermoplastic polyurethane (TPU), two matrix materials with large differences in performance were produced, and then the blending and lamination 3D printing molding processes were compared. 5 At the same time, in addition to the matrix blending, the research on particle-reinforced 3D printed composites has also attracted much attention. For example, Zhang et al 6 researched the high-thermal conductive hexagonal boron nitride (hBN) 7 filled TPU composites by FDM 3D printing technique.…”

“…Generally, the properties of composites, such as mechanical and thermal aspects, are balanced by two matrix materials with different properties. 5 Moreover, when nanoparticles (such as montmorillonite) are further added, the properties of the particle-reinforced composites are complicated. In most cases, nanoparticles are used to improve the tensile strength, elongation, and elastic modulus of multicomponent composites, and the thermal stability, glass transition temperature, and enthalpy value of the composites.…”

Study on the healing performance of poly(ε‐caprolactone) filled ultraviolet‐curable 3D printed cyclic trimethylolpropane formal acrylate shape memory polymers

“…For consumables with pure light-curing monomer, this side texture is more accurate than FDM 3D printed material. 22,23 As a thermoplastic healing agent, PCL could repair 1 mm deep cracks or scratches on 3D printed samples, as shown in Figure 2. At 90 C, PCL in the solution melted and flowed into the crack.…”

“…Therefore, the stress and strain of this two-phase material under stress are significantly lower than the linear theoretical value of the component material according to rule of mixture. 22,27,28 Because the flexibility of PCL is much larger than that of CTFA polymer, a small amount of PCL is also considered as foaming agent in CTFA samples to improve the toughness of CTFA to avoid damage. However, the distribution of PCL in the polymer is uneven, so it is not recommended to continuously add it.…”