Controlling the quality of deposits of polyaniline synthesized on glass fiber fabric

Self-heating GNPs-based electrical networks were successfully obtained for their use in electrothermal applications. The electrical resistance of the GNPs-networks created on glass fiber fabrics was strongly dependent on fiber direction. The electrothermal response was fast and the maximum temperature was achieved in the system after ∼20 s. Increments in temperature above 80°C were obtained at the surface of the coated glass fiber fabric at relatively low intensity currents. Cyclic self-heating did not cause appreciable diminution in performance. Additionally, their potential application in evaluation of the quality of dispersion of the nanoreinforcement was demonstrated, as regions with lower contents in GNPs showed higher temperature due to weak links between GNPs located in highly conductive paths forming the electrical network.

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Quasi-static penetration behavior of fiber-reinforced polypropylene and acrylonitrile butadiene styrene matrix composites

Journal of Thermoplastic Composite Materials ◽

10.1177/08927057211007906 ◽

2021 ◽

pp. 089270572110079

Author(s):

Ali İmran Ayten

Keyword(s):

Glass Fiber ◽

Energy Absorption ◽

Matrix Material ◽

Acrylonitrile Butadiene Styrene ◽

Fiber Types ◽

Matrix Composites ◽

Aramid Fabric ◽

Penetration Behavior ◽

Fiber Fabric ◽

Butadiene Styrene

The quasi-static punch shear behaviors of thermoplastic composites with different polymer matrices and fiber types were investigated. This study was also focused on how much energy absorption capability can be increased by low fiber fractions. Maleic anhydride grafted polypropylene (MA-g-PP) and acrylonitrile butadiene styrene (MA-g-ABS) were used as the matrix material. One layer of aramid, carbon and glass fiber plain weave fabrics was used as the reinforcement material. Quasi-static punch shear test (QS-PST) was applied to the samples to understand the penetration behavior of the samples. The damaged areas were investigated and related to force-displacement curves. The results showed that the neat form of MA-g-PP exhibited 158% more energy absorption than the neat form of MA-g-ABS. In the samples containing one layer of fabric, the highest improvement was observed in the aramid fabric-reinforced MA-g-ABS matrix composites. Aramid fabric increased the energy absorption at a rate of 142.3% in comparison to the neat MA-g-ABS, while carbon fiber fabric and glass fiber fabric increased it by 40% and 63.52%, respectively. Aramid fiber fabric provided no significant improvement in the energy absorption in the MA-g-PP matrix composites, while carbon and glass fiber fabrics contributed to energy absorption at a rate of 48% and 41%, respectively.

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Dielectric Modulated Glass Fiber Fabric‐Based Single Electrode Triboelectric Nanogenerator for Efficiently Biomechanical Energy Harvesting

Advanced Functional Materials ◽

10.1002/adfm.202102431 ◽

2021 ◽

pp. 2102431

Author(s):

Zhipeng Zheng ◽

Di Yu ◽

Yiping Guo

Keyword(s):

Energy Harvesting ◽

Glass Fiber ◽

Triboelectric Nanogenerator ◽

Fiber Fabric

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Solvent diffusion mechanism of PMMA/ acetone coated glass fiber fabric during curing process

Journal of Industrial Textiles ◽

10.1177/15280837211036214 ◽

2021 ◽

pp. 152808372110362

Author(s):

Zhenrong Zheng ◽

Yuejiao Bi ◽

Lihuan Tong ◽

Yalan Liu

Keyword(s):

Glass Fiber ◽

Diffusion Mechanism ◽

Coating Film ◽

Curing Process ◽

Curing Time ◽

Solvent Concentration ◽

Solvent Diffusion ◽

Coated Glass ◽

Drying Model ◽

Fiber Fabric

Fabric it is not an impermeable substrate because of fiber porosity. To study the solvent diffusion mechanism of coated fabric in the curing process, the drying model of PMMA/acetone coated glass fiber fabric was established. This drying model was verified by confocal Raman spectroscopy. Finally, the impact of fabric structure, thickness and porosity on the solvent diffusion process in coated fabrics was studied by the model. It was shown that the predicted solvent concentrations by the model were consistent with the experimental values. This model can be used to quantitatively calculate the solvent concentration at any position and at any time inside the coating film during the drying process. Moreover, it can also predict the curing time and residual solvent concentration of the coating fabric required to reach drying equilibrium. Compared with coated 3/1 twill, 5/3 satin and 2/1 twill, the solvent diffusion of coated plain fabric was faster during curing. Under the same environmental conditions, the thinner the fabric was and the greater the porosity was, the shorter the curing time was. The fitting equations for fabric thickness, fabric porosity and drying time were obtained, which can provide a theoretical guidance for the preparation, performance research and drying conditions optimization of PMMA coated textile materials.

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An improved nonlinear model considering relative velocity for the friction behavior between untwisted glass-fiber tow and roller

Textile Research Journal ◽

10.1177/00405175211030877 ◽

2021 ◽

pp. 004051752110308

Author(s):

Yang Liu ◽

Zhong Xiang ◽

Xiangqin Zhou ◽

Zhenyu Wu ◽

Xudong Hu

Keyword(s):

Friction Coefficient ◽

Glass Fiber ◽

Relative Velocity ◽

Friction Model ◽

Woven Fabric ◽

Test Results ◽

Application Process ◽

Friction Behavior ◽

Improved Model

Friction between the tow and tool surface normally happens during the tow production, fabric weaving, and application process and has an important influence on the quality of the woven fabric. Based on this fact, this paper studied the influence of tension and relative velocity on the three kinds of untwisted-glass-fiber tow-on-roller friction with a Capstan-based test setup. Furthermore, an improved nonlinear friction model taking both tension and velocity into account was proposed. According to statistical test results, firstly, the friction coefficient was found to be positively correlated with tension and relative velocity. Secondly, tension and velocity were complementary on the tow-on-roller friction behavior, with neither being superior to the other. Thirdly, an improved model was found to present well the nonlinear characteristics between friction coefficient and tension and velocity, and predicational results of the model were found to agree well with the observations from Capstan tests.

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Relining with Glass-Fiber Fabric

Studies in Conservation ◽

10.1179/sic.1961.005 ◽

1961 ◽

Vol 6 (1) ◽

pp. 26-30 ◽

Cited By ~ 4

Author(s):

ALAIN BOISSONNAS

Keyword(s):

Glass Fiber ◽

Fiber Fabric

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Analysis of the surface quality of polycaprolactam 3D prints enriched with carbon and glass fiber

MATEC Web of Conferences ◽

10.1051/matecconf/202133801005 ◽

2021 ◽

Vol 338 ◽

pp. 01005

Author(s):

Damian Dzienniak ◽

Jan Pawlik

Keyword(s):

Glass Fiber ◽

Surface Quality ◽

Fused Deposition Modeling ◽

Polyamide 6 ◽

Fiber Glass ◽

Fused Deposition ◽

Deposition Modeling ◽

The Impact ◽

The Relationship

Additive manufacturing has been gaining popularity and availability year by year, which has resulted in its dynamic development. The most common 3D printing method as of today, FDM (Fused Deposition Modeling), owing to its peculiarity, does not always guarantee producing objects with low surface roughness. The authors of the present article have taken on the analysis of the impact of FDM printing on the roughness of the filament thus processed. They also investigate the relationship between the roughness of the unprocessed filament (made of polycaprolactam, that is, polyamide 6 or PA6) with admixtures of other materials (carbon fiber, glass fiber) and the surface quality of the manufactured object. The main subject of the analysis is the side surfaces of 3D prints, as it is their quality that is usually directly dependent on many factors connected with the process of the laying of the consecutive layers. The authors check step by step whether there exists a pronounced relationship between the roughness of the original filament material and the roughness of the obtained surface.

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