Optimization of surface treatment in Calotropis Gigantea (CG)-fibre yarn by simple techniques and characterization of CG fibre yarn reinforced laminate

Renugadevi, K.; Devan, P.K.; Reddy, M. Muralidhar; Karthik, P.; Thomas, Tiju

doi:10.1016/j.jmrt.2020.08.058

Cited by 11 publications

(4 citation statements)

References 34 publications

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“…They investigated the appropriateness of CG stem fibres as prospective reinforcements for biocomposites using morphological analyses such as crystallinity, shape, and spectrophotometric characteristics. Several bast fibres, like flax, jute, and sisal, are used in advanced applications for manufacturing composites [8]. Ashori and Bahreini [9] assessed the chemical components of CG bark and seed fibre for usefulness as a natural resource in composites.…”

Section: Introductionmentioning

confidence: 99%

Multiresponse Optimization of Mechanical Behaviour of Calotropis gigantea/Nano-Silicon-Based Hybrid Nanocomposites under Cryogenic Environment

Ponnusamy

Natrayan

Patil

et al. 2022

Adsorption Science & Technology

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The utilization of natural fibre-based biodegradable polymers has expanded in the present circumstances since natural fibres are relatively inexpensive, recyclable, lighter, nonflammable, and harmless. However, hydrophilic nature is the most serious issue. To address this issue, the current study was applied to enhance the material characteristics of hybrid composites strengthened by CGF and nanosilica powder. To accomplish the mentioned goal, RSM calculated and optimized the following processing parameters using the BBD arrangement at various CGF fibre thickness (gsm), weight percent of nanosilica powder (wt. percent), and cryogenic treatment period (min). To prevent hydrophilic nature, the fibres were pretreated for four hours with a 5% alkaline solution. Deterioration models were created to analyze the material characteristics, and the optimal progression variables were determined. Based on the multiresponse surface methodology, the governable process variables for nano-silica- and CGF-based hybrid nanocomposites should be set at 3% silica, 300 gsm of CGF, and 30 minutes of cryogenic treatment. The tension, bending, and impact property correlation coefficient values ( R 2 ) are 0.95, 0.94, and 0.95, respectively. The above-mentioned combinations provide better water absorption and mechanical strength.

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Section: Introductionmentioning

confidence: 99%

Multiresponse Optimization of Mechanical Behaviour of Calotropis gigantea/Nano-Silicon-Based Hybrid Nanocomposites under Cryogenic Environment

Ponnusamy

Natrayan

Patil

et al. 2022

Adsorption Science & Technology

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“…These bonds allow for the ordering of the molecule's structures and preserve its thermal stability [27]. The peaks at 1160 cm −1 (asymmetric vibrations of C-O-C bonds) and 897 cm −1 (characteristic vibrations of β-1,4-glycosidic bonds) also demonstrate the presence of cellulose molecules in all the samples analyzed [34,35]. Peaks indicating the presence of hemicellulose and lignin compounds were observed for each sample at 1745 cm −1 (stretching vibrations of the C=O bonds of hemicellulose) and 1558 cm −1 (stretching vibrations of the C=C bonds of lignin).…”

Section: Fourier Transform Analysis Of Infrared Spectra (Ftir)mentioning

confidence: 87%

Application of Proton Ionic Liquid in the Process of Obtaining Bioethanol from Hemp Stalks

Smuga-Kogut,

Walendzik,

Lewicka-Rataj

et al. 2024

Energies

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In this work, hemp (Cannabis sativa L.) stalks were pretreated with pyrrolidinium acetate [Pyrr][AC] to increase the availability of cellulose for cellulolytic enzymes and thus improve the production of 2G ethanol from reducing sugars. The process was carried out under different temperature and time conditions: The control sample was raw material and deionized water, and the second sample was kept at 21 °C for 24 h. The third sample was kept at 90 °C for 30 min, and the fourth sample was kept at the same temperature for 24 h. For each pretreatment, the extraction of lignin and hemicellulose was determined, as well as the change in biomass composition before and after pretreatment. The stalks of hemp seed contained 41.54% cellulose, 18.08% lignin and 28. 87% hemicellulose. [Pyrr][AC] used to dissolve seed hemp at 90 °C for 24 h was most effective in the extraction of this biopolymer, extracting 3.1% content. After enzymatic hydrolysis, the highest content of reducing sugars was found for samples of hemp stalks that were first pretreated with proton ionic liquid (PIL) and stirred at 90 °C for 24 h. On the other hand, the highest ethanol content (5.6 g/L) after fermentation and yeast viability (56.7%) after 72 h were obtained in samples pretreated at 90 °C and for 24 h.

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“…The variety of calotropis known as the 'crowned blossom' is native to Southeast Asia and tropical Africa. This is a popular and rapidly-growing flowering shrub identified by its odorless purple blooms and thick, rectangular leaves that thrive in challenging environments [12,13]. India has utilized the calotropis gigantea shrub for centuries as a traditional medicine due to its recognition as a valuable medicinal herb.…”

Section: Introductionmentioning

confidence: 99%

Hybrid calotropis gigantea fibre-reinforced epoxy composites with SiO₂’s longer-term moisture absorbable and its impacts on mechanical and dynamic mechanical properties

Velmurugan,

Suresh Kumar,

Chohan

et al. 2023

Mater. Res. Express

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Opportunities for the fabrication of plant fiber hybrids using thermoplastics and thermosets may be found in a variety of industries, including automobiles and agriculture. This can lessen reliance on crude oil, which contributes to a number of sustainability problems. In the current study, calotropis gigantea fiber (CGF) and nanosilicon dioxide (SiO2)-derived hybridized materials' mechanical, dynamic mechanical, and water absorption properties were examined. Utilizing varying weight proportions of nanoSiO2 (0, 1.5, 3, and 4.5 wt%) and 30 wt% of CGF, we manufactured the composite using the hand lay-up method. The moisture absorption of the manufactured composites was measured during periods of 500, 1000, and 2000 hours. For composite materials containing 1.5 wt% SiO2, the highest interlaminar shear strength (ILSS) failure point was 12.52 MPa for 500 hours, which is 12.32% lower than the breaking strength for dried products (14.28 MPa). In comparison to the dry specimens, the bending strength of hybrids with 1.5% SiO2 that were immersed in water for 500, 1000, and 2000 hours decreased by 2.56%, 5.21%, and 9.65%, respectively. The storage modulus of the damp hybrids with 3% and 4.5 wt% SiO2 was higher than that of the dry samples in terms of their dynamic mechanical properties. While the inclusion of nano-SiO2 significantly reduced water absorption and moisture diffusion, especially for hybrid materials with 4.5 weight percent SiO2, the water-absorption behaviour of hybrid natural fiber materials followed the Fickian law. With prolonged exposure time, the mechanical properties of the nanocomposite, both with and without nano-SiO2, such as ILSS and bending strength, declined. Due to the effective distribution of filler in the matrices, the samples with 4.5 weight percent SiO2 exhibited the smallest drop in strengths for both the flexural and interlaminar examinations, although all of them remained stronger than the CGF blends. The outcomes of the study point to potential applications in areas such as automobile manufacture, agriculture, construction, and general manufacturing.

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Optimization of surface treatment in Calotropis Gigantea (CG)-fibre yarn by simple techniques and characterization of CG fibre yarn reinforced laminate

Cited by 11 publications

References 34 publications

Multiresponse Optimization of Mechanical Behaviour of Calotropis gigantea/Nano-Silicon-Based Hybrid Nanocomposites under Cryogenic Environment

Multiresponse Optimization of Mechanical Behaviour of Calotropis gigantea/Nano-Silicon-Based Hybrid Nanocomposites under Cryogenic Environment

Application of Proton Ionic Liquid in the Process of Obtaining Bioethanol from Hemp Stalks

Hybrid calotropis gigantea fibre-reinforced epoxy composites with SiO₂’s longer-term moisture absorbable and its impacts on mechanical and dynamic mechanical properties

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Optimization of surface treatment in Calotropis Gigantea (CG)-fibre yarn by simple techniques and characterization of CG fibre yarn reinforced laminate

Cited by 11 publications

References 34 publications

Multiresponse Optimization of Mechanical Behaviour of Calotropis gigantea/Nano-Silicon-Based Hybrid Nanocomposites under Cryogenic Environment

Multiresponse Optimization of Mechanical Behaviour of Calotropis gigantea/Nano-Silicon-Based Hybrid Nanocomposites under Cryogenic Environment

Application of Proton Ionic Liquid in the Process of Obtaining Bioethanol from Hemp Stalks

Hybrid calotropis gigantea fibre-reinforced epoxy composites with SiO2’s longer-term moisture absorbable and its impacts on mechanical and dynamic mechanical properties

Contact Info

Product

Resources

About

Hybrid calotropis gigantea fibre-reinforced epoxy composites with SiO₂’s longer-term moisture absorbable and its impacts on mechanical and dynamic mechanical properties