Preferable Filament Diameter Ratios of Hybrid Yarn Components for Optimized Longfiber Reinforced Thermoplastics

2002 ◽  
Vol 17 (2) ◽  
pp. 153-157 ◽  
Author(s):  
R. Beyreuther ◽  
H. Brünig ◽  
R. Vogel
Keyword(s):  
Filament Diameter ◽  
Hybrid Yarn ◽  
Reinforced Thermoplastics

Recent developments in the processing of waste carbon fibre for thermoplastic composites – A review

2019 ◽  
Vol 54 (14) ◽  
pp. 1925-1944 ◽  
Author(s):  
Muhammad Furqan Khurshid ◽  
Martin Hengstermann ◽  
Mir Mohammad Badrul Hasan ◽  
Anwar Abdkader ◽  
Chokri Cherif
Keyword(s):  
Carbon Fibre ◽  
Volume Fraction ◽  
Fibre Volume Fraction ◽  
Fibre Volume ◽  
Thermoplastic Composites ◽  
Hybrid Yarn ◽  
Quality Aspects ◽  
Structural Applications ◽  
Recent Developments ◽  
Reinforced Thermoplastics

The aim of this paper is to highlight recent developments in the processing of waste carbon fibre for thermoplastic composites. Initially, injection moulding and nonwoven technologies have been used to integrate waste carbon fibres into fibre-reinforced thermoplastic composites. Recently, tape and hybrid yarn spinning technologies have been developed to produce tape and hybrid yarn structures from waste carbon fibre, which are then used to manufacture recycled carbon fibre-reinforced thermoplastics with much higher efficiency. The hybrid yarn spinning technologies enable the development of various fibrous structures with higher fibre orientation, compactness and fibre volume fraction. Therefore, thermoplastic composites manufactured from hybrid yarns possess a good potential for use in load-bearing structural applications. In this paper, a comprehensive review on novel and existing technologies employed for the processing of waste carbon fibre in addition to different quality aspects of waste carbon fibre is presented.

Optimization of electromagnetic shielding of three-dimensional orthogonal woven hybrid fabrics in ku band frequency region by response surface methodology

2022 ◽  
pp. 152808372110620
Author(s):  
Mukesh Kumar Singh ◽  
Gaurav Saraswat ◽  
Samrat Mukhopadhyay ◽  
Himangshu B Baskey
Keyword(s):  
Three Dimensional ◽  
Electromagnetic Shielding ◽  
Polyphenylene Sulfide ◽  
Weft Yarn ◽  
Band Frequency ◽  
Filament Diameter ◽  
Hybrid Yarn ◽  
Woven Structures ◽  
3D Orthogonal Woven ◽  
Spacer Fabrics

Electromagnetic shielding (EMS) has become the necessity of the present era due to enormous expansion in electronic devices accountable to emit electromagnetic radiation. The principal target of this paper is to originate three-dimensional (3D) orthogonal fabrics with conductive hybrid weft yarn and to determine their electromagnetic shielding. DREF-III core-spun yarn using copper filament in the core and polyphenylene sulfide (PPS) fiber on the sheath and fabric constructed of such yarn has a promising electromagnetic shielding characteristic. Box–Behnken experimental design has been employed to prepare various samples to investigate the electromagnetic shielding efficiency of 3D orthogonal woven structures. The orthogonal fabric samples were tested in an electromagnetic Ku frequency band using free space measurement system (FSMS) to estimate absorbance, reflectance, transmittance, and electromagnetic shielding. The increase in copper core filament diameter and hybrid yarn linear density enhances the EMS of orthogonal fabric. Statistical analysis has been done to bring out the effect and interaction of various yarn and fabric variables on EMS. Metal filament diameter, orientation, sheath fibers percentage, and fabric constructional parameters significantly affected electromagnetic shielding efficiency. The inferences of this study can be applied in other 3D structures like angle interlock, spacer fabrics for curtains, and coverings for civilians and military applications.

The 3-Dimensional Molecular Structure of the Actin Filament Revisited

1985 ◽  
Vol 43 ◽  
pp. 480-481
Author(s):  
U. Aebi ◽  
R. Millonig ◽  
H. Salvo
Keyword(s):  
Actin Filament ◽  
Supramolecular Assembly ◽  
Specimen Preparation ◽  
X Ray Diffraction ◽  
Single Filament ◽  
X Ray ◽  
3 Dimensional ◽  
Filament Diameter ◽  
Preparation Conditions ◽  
Apparent Diameter

To date, most 3-D reconstructions of undecorated actin filaments have been obtained from actin filament paracrystal data (for refs, see 1,2). However, due to the fact that (a) the paracrystals may be several filament layers thick, and (b) adjacent filaments may sustantially interdigitate, these reconstructions may be subject to significant artifacts. None of these reconstructions has permitted unambiguous tracing or orientation of the actin subunits within the filament. Furthermore, measured values for the maximal filament diameter both determined by EM and by X-ray diffraction analysis, vary between 6 and 10 nm. Obviously, the apparent diameter of the actin filament revealed in the EM will critically depend on specimen preparation, since it is a rather flexible supramolecular assembly which can easily be bent or distorted. To resolve some of these ambiguities, we have explored specimen preparation conditions which may preserve single filaments sufficiently straight and helically ordered to be suitable for single filament 3-D reconstructions, possibly revealing molecular detail.

scholarly journals Application of Glass Fiber and Carbon Fiber-Reinforced Thermoplastics in Face Guards

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 18
Author(s):  
Takahiro Wada ◽  
Hiroshi Churei ◽  
Mako Yokose ◽  
Naohiko Iwasaki ◽  
Hidekazu Takahashi ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Glass Fiber ◽  
Impact Testing ◽  
Fiber Reinforced ◽  
Shock Absorption ◽  
Glass Fiber Reinforced ◽  
Field Of Vision ◽  
Commercial Glass ◽  
Carbon Fiber Reinforced ◽  
Reinforced Thermoplastics

Face guards (FGs) are protectors that allow for the rapid and safe return of athletes who are to play after sustaining traumatic facial injuries and orbital fractures. Current FGs require significant thickness to achieve sufficient shock absorption abilities. However, their weight and thickness render the FGs uncomfortable and reduce the field of vision of the athlete, thus hindering their performance. Therefore, thin and lightweight FGs are required. We fabricated FGs using commercial glass fiber-reinforced thermoplastic (GFRTP) and carbon fiber-reinforced thermoplastic (CFRTP) resins to achieve these requirements and investigated their shock absorption abilities through impact testing. The results showed that an FG composed of CFRTP is thinner and lighter than a conventional FG and has sufficient shock absorption ability. The fabrication method of an FG comprising CFRTP is similar to the conventional method. FGs composed of commercial FRTPs exhibit adequate shock absorption abilities and are thinner and lower in weight as compared to conventional FGs.

Data enriched lubrication force modeling for a mechanistic fiber simulation of short fiber-reinforced thermoplastics

2021 ◽  
Vol 33 (5) ◽  
pp. 053107
Author(s):  
Susanne K. Kugler ◽  
Abrahán Bechara ◽  
Hector Perez ◽  
Camilo Cruz ◽  
Armin Kech ◽  
...  
Keyword(s):  
Short Fiber ◽  
Fiber Reinforced ◽  
Force Modeling ◽  
Reinforced Thermoplastics ◽  
Fiber Reinforced Thermoplastics

Hot water resistance of glass-fiber and glass-bead reinforced thermoplastics

2003 ◽  
Vol 24 (1) ◽  
pp. 181-191 ◽  
Author(s):  
Takafumi Kawaguchi ◽  
Hiroyuki Nishimura ◽  
Kazunori Ito ◽  
Takashi Kuriyama ◽  
Ikuo Narisawa
Keyword(s):  
Glass Fiber ◽  
Glass Bead ◽  
Water Resistance ◽  
Hot Water ◽  
Reinforced Thermoplastics

Fracture behaviour of long fibre reinforced thermoplastics

1994 ◽  
Vol 29 (21) ◽  
pp. 5732-5738 ◽  
Author(s):  
T. Vu-Khanh ◽  
J. Denault
Keyword(s):  
Fracture Behaviour ◽  
Reinforced Thermoplastics
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