Vectran High-performance Fibre

Beers, D. E.; Ramírez, Jorge E.

doi:10.1080/00405009008658729

Cited by 60 publications

(40 citation statements)

References 1 publication

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“…The three‐step coating procedure itself by magnetron sputtering did not noticeably interfere with the mechanical properties of the fiber, thus agreeing with findings that PET fibers readily maintain their tensile strength in Ar plasma treatments 47,48. Directly tested at elevated temperature, however, Vectran fibers did not retain their strength due to their thermoplastic characteristics, i.e., enhanced plastic deformation occurs with increasing temperature yielding reduced breaking strengths 11. Hence, the passive sensor might be mainly applicable when fibers, ropes etc.…”

Section: Resultssupporting

confidence: 81%

“…du Pont de Nemours and Company), a heat‐resistant aramid with a comparable tenacity to Vectran, show a strength retention of 85% and 70% following thermal exposure at 260 °C for 24 h, respectively. Their strength retention at simultaneous mechanical and thermal loading is again considerably lower 11. In case of Vectran, heat exposure should not exceed 300 °C due to enhanced crystal‐disordering processes leading to mechanical failure 12.…”

Section: Introductionmentioning

confidence: 99%

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Functional Coatings on High‐Performance Polymer Fibers for Smart Sensing

Galinski

Leutenegger

Amberg

et al. 2020

Adv Funct Materials

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Above a critical temperature, high‐performance fibers may lose their mechanical properties resulting in catastrophic events of damage when, e.g., used as load‐carrying ropes. Here, a method to functionalize polymer fibers with thermochromic optical coatings that enable signaling of damaging thermal history is introduced. These smart coatings are comprised of an index‐tunable anti‐reflection coating based on chalcogenide phase change materials (PCM). It is demonstrated that the insulator−metal phase transition of these materials can be aligned with the critical deterioration temperature of both polyethylene terephthalate (PET) monofilaments and liquid‐crystal polyester (LCP) yarns by composition tuning. The carefully designed optical system amplifies the change in optical properties of its constituents upon phase change. The thermal and mechanical degradation of these fibers can thus be monitored and displayed by eye.

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Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Functional Coatings on High‐Performance Polymer Fibers for Smart Sensing

Galinski

Leutenegger

Amberg

et al. 2020

Adv Funct Materials

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“…LCPs generally possess rigid-rod like molecular chains and can exist in oriented polydomains. 2 The rigid rods oriented along the flow field lines should produce a lower resistance of LCPs to flow than unordered macromolecules. The majority of studies are confined to the relationship between morphology, rheology and mechanical properties of LCP blends.…”

Section: Introductionmentioning

confidence: 99%

Structure -properties relations of polypropylene/ liquid crystalline polymer blends

et al. 2003

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The blends of polypropylene (PP) with glass filled thermotropic liquid crystalline polymer (LCP-g) have been prepared by melt mixing techniques at different blend ratios. The thermal, dynamic mechanical, crystalline and morphological characteristics of these blends were investigated. Higher percent crystallinity was observed for 10% level of LCP-g in the blend in comparison to that of other blend ratios. The thermal stability increased with LCP-g concentration in the blend with PP. The variation of storage modulus, stiffness and loss modulus as a function of blend ratios suggested the phase inversion at the 50% level of LCP-g in the blend. The scanning electron microscopy (SEM) photographs showed the creation of voids and destruction of the fiber structures during the dynamic mechanical measurements. Processing behavior of the blends depended on the fiber forming characteristics of LCP-g, which again varied with the molding temperatures.

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“…[1][2][3] Different ropes can be distinguished depending on their final application, technical parameters and construction. Common raw materials utilized for production of ropes are semi-aromatic (polyethylene terephthalate) and aromatic polyester (liquid-crystal polymers, especially Vectran), 4,5 high-density polyethylene (HDPE, especially Dyneema and Spectra), 6,7 aromatic polyamides (Twaron, Technora and Kevlar), 8 natural staple fibers (flax, hemp, cotton, jute, sisal) 9 and metals (steel or its alloys). The nature of ropes made of wires and synthetic materials is relatively easy to predict as it depends mainly on the mechanical parameters of these materials.…”

mentioning

confidence: 99%

Micro-CT supporting structural analysis and modelling of ropes made of natural fibers

Toda

Grabowska

Ciesielska–Wróbel

2015

Textile Research Journal

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This paper describes the modelling of the structure and mechanical parameters of rope components made of natural fibers. Modern X-ray micro-tomography (Micro-CT) was employed to measure the parameters of the internal structure of the multi-component yarns making up rope and utilized as a basic model of twisted rope. The results allowed calculation of the tensions generated in the component yarns and detection of the unevenness of the filling of the component yarns by fibers, which was clearly visible in cross-section. The unevenness of twist measured as a function of distance from the center of the yarn was also detected. The unevenness of fiber distribution in the twisted element decreased its intensity, starting from the surface of the yarn and going deeper into the structure. Migration of the fibers in the frame of the circumference of the component yarns was associated with the mutual slide of single fibers

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Vectran High-performance Fibre

Cited by 60 publications

References 1 publication

Functional Coatings on High‐Performance Polymer Fibers for Smart Sensing

Functional Coatings on High‐Performance Polymer Fibers for Smart Sensing

Structure -properties relations of polypropylene/ liquid crystalline polymer blends

Micro-CT supporting structural analysis and modelling of ropes made of natural fibers

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