Design of nautical cleat for small–medium boats using hybrid curaua–glass fiber–reinforced epoxy

Minillo, Larissa Queiroz; Cardoso, Bruno Cesar de Castro; Ortenzi, Altibano

doi:10.1016/j.matpr.2020.06.074

Cited by 3 publications

(3 citation statements)

References 19 publications

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“…Although the abovementioned Equation (7) contains five parameters have been widely applied for various conductive polymer composites for strain sensors, it has not been applied for predicting sensoring behavior of GFRPs before. In addition, the fitting results using Equation ( 9), which eliminates two local parameters in Equation (7), is presented in Figure 9A, where a promising reduction of the number of fitting parameters from five to three was presented. A satisfactory agreement was obtained between the experimental data and the fitted curve using Equation 9:…”

Section: Electromechanical Performance Of the Cnts@gfrpmentioning

confidence: 99%

“…Glass fiber reinforced polymer (GFRP) composites have been widely applied in for example transportation, electronics, construction, environmental protection, and aerospace 1–5 due to its excellent mechanical properties, low thermal and electrical conductivity, low weight, and low cost 6–10 . In order to further explore and develop functionalized properties of the GFRP, global researchers have utilized various nano‐fillers to endow designed properties of the GFRP matrix, including anti‐static electricity, electromagnetic interference (EMI) shielding and even sensoring properties 9,11–13 …”

Section: Introductionmentioning

confidence: 99%

“…and low cost. [6][7][8][9][10] In order to further explore and develop functionalized properties of the GFRP, global researchers have utilized various nano-fillers to endow designed properties of the GFRP matrix, including anti-static electricity, electromagnetic interference (EMI) shielding and even sensoring properties. 9,[11][12][13] The additional electrical properties on the superior GFRP enables a nondestructive testing of the GFRP component.…”

mentioning

confidence: 99%

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Mechanical and electrical properties of carbon nanotube/epoxy/glass‐fiber composites intended for nondestructive testing

Cai

et al. 2023

Polymers for Advanced Techs

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In this study, ternary polymer composites sheets comprising glass fiber (GF) reinforced epoxy with various fractions of carbon nanotubes (CNT) were manufactured using hot-pressing technology. A multiscale morphology analysis was presented using scanning electron microscopy. The thermal behavior of the glass fiber reinforced polymer (GFRP) was investigated using thermogravimetric analysis, DSC, and DMA, which indicated an application temperature up to 71 C for the composites. Mechanical uniaxial stretching and three-points bending tests showed that the addition of 0.1-0.2 wt% CNT decreased the dissipated energy of the specimen by 50% and increased the Young's modulus by more than 100%. During all stretching and bending measurements, the relative change in electrical resistance (RCR) was recorded as function of strain, revealing a relationship between the electrical signal and the applied deformation of the GFRP. Finally, the standard equation for fitting RCR versus strain was optimized, reducing the number of fitting parameters from five to three. The electrical and mechanical properties of the CNT/GF/epoxy composites show that they are suitable sensoring materials for wind-turbine blades and other glass-fiber reinforced epoxy constructions, especially for nondestructive testing.

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Section: Electromechanical Performance Of the Cnts@gfrpmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Mechanical and electrical properties of carbon nanotube/epoxy/glass‐fiber composites intended for nondestructive testing

Cai

et al. 2023

Polymers for Advanced Techs

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Curauá fiber from plants produced by tissue culture: thermal, mechanical, and morphological characterizations

Freitas

Padilha²,

Barros

et al. 2023

Cellulose

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Curauá fibers are already well known, mainly for their good mechanical properties and synergism with polymeric matrices. Thus, in this work, we produced the curauá plant by tissue culture (micropropagation technique) and extracted the fibers, which were characterized regarding moisture, ash, extractives, lignin, hemicellulose, holocellulose, and cellulose contents, besides infrared spectroscopy (FTIR-ATR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and evaluation of mechanical properties. Compared to other works, this curauá fiber presented a higher content of cellulose (77.2%) and lower hemicellulose content (6.8%).Another unique feature was the high crystallinity of the cellulose present in the fiber (73.53%), which reflected good thermal and mechanical properties. Thus, we show that the micropropagation technique is highly advantageous for the scale production of this fiber, in addition to producing a high-quality fiber for application in composites since it can better control the plant growth environment as well as macro and micronutrients.

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Optimal Tensile Properties of Biocomposites Made of Treated Amazonian Curauá Fibres Using Taguchi Method

et al. 2021

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Natural fibres have many advantages over synthetic ones, making them attractive for reinforcing polymer materials. This work evaluates the use of an Amazonian plant, namely Curauá (Ananas erectifolius), as a reinforcement phase of biocomposites fabricated by cold pressing. Curauá fibres have been shown to be a promising fibre for composite materials, especially due to their higher elastic modulus than other plant species. An L9 Taguchi design is used to investigate the effect of fibre fraction, NaOH concentration and immersion time on the tensile properties of biocomposites. Statistical models are able of predicting and revealing the optimal composition of the biocomposites. The tensile strength of Curauá biocomposites is significantly affected by the fibre fraction, followed by the factors of immersion time and NaOH concentration. High tensile strength is obtained by adding 25 wt.% of Curauá fibres treated under different conditions. There is an interaction between NaOH concentration and the immersion time; a higher concentration requires less time or vice versa to achieve ideal roughness, promoting strong fibre/matrix adhesion.

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Design of nautical cleat for small–medium boats using hybrid curaua–glass fiber–reinforced epoxy

Cited by 3 publications

References 19 publications

Mechanical and electrical properties of carbon nanotube/epoxy/glass‐fiber composites intended for nondestructive testing

Mechanical and electrical properties of carbon nanotube/epoxy/glass‐fiber composites intended for nondestructive testing

Curauá fiber from plants produced by tissue culture: thermal, mechanical, and morphological characterizations

Optimal Tensile Properties of Biocomposites Made of Treated Amazonian Curauá Fibres Using Taguchi Method

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