Reverse piezo-resistivity of 3D printed continuous carbon fiber/PA6 composites in a low stress range

Iizuka, Keisuke; Todoroki, Akira; Takahashi, Takuya; Ueda, Masahiro

doi:10.1080/09243046.2020.1848314

Cited by 15 publications

(6 citation statements)

References 32 publications

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“…Combining PA 6 or PA 12 with various additives can increase material properties and enable wider application in the automotive, aerospace, and mechanical engineering industries. Popular additives include aluminum powder [ 39 ]; glass [ 40 , 41 , 42 , 43 ], and carbon fibers [ 44 , 45 , 46 , 47 , 48 , 49 ], as well as self-extinguishing particles (flame retardant) [ 50 , 51 ]; antistatic particles (electrostatic discharge) [ 52 ], and black carbon [ 53 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Additives and Print Orientation on the Properties of Laser Sintering-Printed Polyamide 12 Components

et al. 2022

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3D printing, also known as additive manufacturing, is becoming increasingly popular for prototype processing in industrial practice. Laser sintering, which is a laser powder bed fusion technique, is a versatile and common 3D printing technology, which enables compact and high-quality products. Polyamide 12, a popular 3D printing material, provides reliable mechanical and thermal properties. Weaknesses in applying this technology for polyamide 12 include incomplete information regarding the application of various types of additives and different printing orientations with respect to the properties. This study aimed to investigate the influence of various additives (including carbon fiber, glass fiber, flame retardant, and aluminum powder) combined with polyamide 12, using processing of predefined powder refreshing mixture on the properties of a finished product. The thermal, surface, and mechanical properties of samples printed with five different polyamides 12-based powders at three different print orientations were investigated. It was found that the inclusion of additives decreases the tensile strength and increases the surface roughness of printed components—however, the toughness increases. The results can assist designers in selecting an appropriate material that will produce a finished part with the required properties for a given application.

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Section: Introductionmentioning

confidence: 99%

Effect of Additives and Print Orientation on the Properties of Laser Sintering-Printed Polyamide 12 Components

et al. 2022

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“…Furthermore, recycling plastic is one of the solutions for the reduction of plastic waste. The recycling of plastic can be divided into several types: primary, secondary, tertiary, and quaternary [9][10][11][12][13][14]. Some important points of mechanical recycling (primary, secondary) are screening, shape separation, magnetic separation, electrical-conductivity-based separation, and density separation.…”

Section: Introductionmentioning

confidence: 99%

On technological solutions for recycling of recycling of polymer waste: A review

Mankotia,

Singh Chohan,

Singh

2024

E3S Web Conf.

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In the past few decades (after the industrial revolution) the pollution caused by polymers has become a matter of concern and recycling of polymers as a solution has attracted global attention. Several studies were conducted in the context of polymer recycling, but hitherto little has been reportedon the impact of technological solutions for recycling polymer waste and its effect on the economy andenvironment. In the present study, different polymer recycling techniques have been outlined in a comprehensive manner along with the effect of recycling on the economy and environment. Also, bibliographic analysis was performed to understand possible research gaps.

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“…The electrical resistance change method is one technique that can be reversibly changed with loading and unloading during a cyclic test. Therefore, it can be used to detect strain in conductive polymer composites without additional sensors 15 …”

Section: Introductionmentioning

confidence: 99%

“…14 Polymer composites can also be used in FFF. 15 Most composite FFF studies have focused on introducing short fibers to the polymer; for example, Carneiro et al 16 successfully developed glass fiber-reinforced polypropylene composite with improved mechanical properties, and Shofner et al 17 compounded single-wall carbon nanotubes with ABS. These studies showed an improvement in tensile strength.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it can be used to detect strain in conductive polymer composites without additional sensors. 15 In this study, a strain-controlled fatigue test was conducted to study the fatigue life behavior of a 3D-printed CWPC of rigid (PLA-based) and flexile (TPU-based) materials. PLA and TPU were selected for this study as they are some of the most common filaments used for the FFF technique representing rigid and flexible based materials, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue behavior and electromechanical properties of additively manufactured continuous wire polymer composites for structural health monitoring

Saleh

Kempers

Melenka

2022

Fatigue Fract Eng Mat Struct

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The fatigue behavior of continuous wire polymer composite (CWPC) fabricated by fused filament fabrication (FFF) was investigated. Four compositions were examined: polylactic acid (PLA), PLA with copper wire (Cu), thermoplastic polyurethane (TPU), and TPU with Cu wire. Residual properties were measured after different sets of number of cycles (10 2 , 10 4 , 10 5 ). Residual strengths were 89.7% and 70.5% of the ultimate tensile strength of the original material after 10 5 cycles for PLA CWPC and TPU CWPC, respectively. A one-way analysis of variance (ANOVA) statistical tests showed insignificant changes in the residual strengths of PLA-based materials after an increasing number of cycles and significant changes for the TPU-based materials. CWPC electromechanical properties under fatigue test demonstrated reverse piezoresistance behavior. A strain-controlled fatigue life analytical model was compared with the experimental results showing good agreement. This study demonstrates the applicability of FFF technique to print sensors with continuous integrated wire with tunable properties.

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Reverse piezo-resistivity of 3D printed continuous carbon fiber/PA6 composites in a low stress range

Cited by 15 publications

References 32 publications

Effect of Additives and Print Orientation on the Properties of Laser Sintering-Printed Polyamide 12 Components

Effect of Additives and Print Orientation on the Properties of Laser Sintering-Printed Polyamide 12 Components

On technological solutions for recycling of recycling of polymer waste: A review

Fatigue behavior and electromechanical properties of additively manufactured continuous wire polymer composites for structural health monitoring

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