Analysis and development of a brazing method to weld carbon fiber-reinforced poly ether ketone ketone with amorphous PEKK

Kotzur, Karola; Doll, Georg; Hermann, P.

doi:10.1080/20550340.2022.2122119

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…In essence, the higher carbon ratio in PEKK represents a fundamental enhancement to the material's molecular architecture. This aspect is highly important in the case of applications when a strong and rigid material is required for the precise and demanding operations realized by the robotic grippers (Kotzur et al, 2022). In Figure 9 there is presented the SEM analysis of PEKK used in Fused Filament Fabrication (FFF), revealing notable structural characteristics when compared with PET-G and MED 857 (DraftWhite) materials.…”

Section: Eds and Sem Investigationsmentioning

confidence: 99%

Use of high-performance polymeric materials in customized low-cost robotic grippers for biomechatronic applications: experimental and analytical research

Păcurar,

Sanfilippo,

Økter

et al. 2024

Front. Mater.

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Advancements in materials science and 3D printing technologies have opened up new avenues for developing low-cost robotic grippers with high-performance capabilities, making them suitable for various biomechatronic applications. In this research, it has been explored the utilization of high-performance polymer materials, such as Polyetherketoneketone (PEKK), Polyethylene Terephthalate Glycol (PET-G) and MED 857 (DraftWhite), in the designing and developing of customized robotic grippers. The primary focus of made analyses was oriented on materials characterization, both experimentally and analytically. Computer-Aided Engineering (CAE) methods were employed to simulate bending experiments, allowing for a comprehensive analysis of the mechanical behavior of the selected materials. These simulations were validated through physical bending experiments using samples fabricated via 3D printing technologies, including Fused Filament Fabrication (FFF) for PET-G and PEKK, as well as Jetted Photopolymer (PolyJet) technology employing UV Resin for MED 857. The findings of this research provided advantages of utilizing advanced materials like PEKK in low-cost robotic grippers for biomechatronic applications. The experimental and analytical approaches offer valuable insights into material selection, design optimization, and the development of cost-effective high-performing robotic systems with a wide range of applications in the field of biomechatronics.

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Section: Eds and Sem Investigationsmentioning

confidence: 99%

Use of high-performance polymeric materials in customized low-cost robotic grippers for biomechatronic applications: experimental and analytical research

Păcurar,

Sanfilippo,

Økter

et al. 2024

Front. Mater.

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“…One of the most relevant aspects is to investigate the crystalline structure of the matrix resin to understand its relation with and influence on the mechanical properties. Specifically, the primary effect on the interfacial forces between matrix resin and fiber, 5 and the secondary influence on the interfacial strength between metals and matrix resins or between resins after thermal welding is of substantial interest 6,7 . One of the purposes of these studies is the improvement of the material reliability and safety for automotive, aerospace and future mobility applications, whose market is expected to grow by precise control and design of the material properties from a fundamental chemical structural level.…”

Section: Introductionmentioning

confidence: 99%

An innovative sample preparation strategy to visualize the crystalline structure of fiber reinforced thermoplastic composites by polarized optical microscopy

Yoshida,

Furushima,

Yamamoto

et al. 2024

Polymer Composites

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This study aims at an innovative sample preparation strategy for fiber reinforced thermoplastic (FRTP) composites analyzed via polarized optical microscopy to visualize the crystalline structure of the matrix resin. Investigating the structure is relevant for understanding the relationship with the mechanical properties. In general, polarized optical microscopy is a powerful technique for visualizing polymer crystalline structures at samples sliced into thin sections below 30 μm. However, analyzing FRTPs remains challenging in absence of suitable methods for the preparation of thin sections owing to the embedded fibers. Herein, the preparation of appropriately thin sections in a novel sequence of steps is shown that may generically be applied to FRTPs. Four different types of FRTPs with major matrix resins (GF/PBT, CF/PA6, CF/PEEK and GF/PP) were successfully processed to thickness of 5 μm or below without fiber loss, resin breakage or delamination between fiber and resin demonstrating the utility of the developed method, which is the significant outcome of the study. To the best of our knowledge, the subsequently obtained polarized optical microscopic images for the first time visualized the crystalline structure of the matrix resin revealing nucleation of crystals from the fiber surface and effects of mold flow on the crystallization behavior.Highlights Thinning of fiber reinforced thermoplastics to thickness of 5 μm or below. Thinning achieved despite fiber volume at industrial applications level. Sample preparation ensures ideal conditions for polarized optical microscopy. Visualization of crystalline structure of the matrix resin for the first time. Potential advancement for spectroscopic and electron microscopic analyses.

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Analysis and development of a brazing method to weld carbon fiber-reinforced poly ether ketone ketone with amorphous PEKK

Cited by 2 publications

References 19 publications

Use of high-performance polymeric materials in customized low-cost robotic grippers for biomechatronic applications: experimental and analytical research

Use of high-performance polymeric materials in customized low-cost robotic grippers for biomechatronic applications: experimental and analytical research

An innovative sample preparation strategy to visualize the crystalline structure of fiber reinforced thermoplastic composites by polarized optical microscopy

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