Elastomers and Adhesives for Aerospace Applications

Bhuvaneswari, C. M.; Kale, S. S.; Gouda, G.; Jayapal, P.; Tamilmani, K

doi:10.1007/978-981-10-2134-3_26

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Rubbers are distinguished tactically important materials satisfying miscellaneous industrial applications. 1 To overcome the poor mechanical strength of neat rubbers, nanoparticles like carbon black and silica are commonly used. In the uncured rubber compounds, nanoparticles can induce a liquid-to-solid like transition as the filler volume fraction (φ) increases, 2−5 which is usually assigned to filler networking due to percolation of fractal aggregates connected by bridging polymer chains.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Ionic Liquids on Structure and Rheological Behaviors of Silica-Filled Butadiene Rubber

Hussain

Yasin

Akram

et al. 2019

Ind. Eng. Chem. Res.

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Nanoparticle dispersion is important for the performance of rubber compounds. Herein, ionic liquids (ILs) and silane are used to prepare silica-filled butadiene rubber vulcanizates. The results show that replacement of a half of silane by ILs could greatly improve the dispersions of silica and zinc oxide, restrain the migration of sulfur and other additives inside the composite, and maintain the cross-linking degree of the matrix possibly by suppressing the adsorption of sulfur and other additives by silica. The regulated filler dispersity and matrix cross-linking strongly influence the dynamic rheological behaviors of the vulcanizates as a function of silica volume fraction. In comparison with silane, the introduction of ILs could improve the reinforcement effect, reduce energy dissipation, and lower the frequency dependences of loss modulus and loss tangent in the linear region.

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Section: Introductionmentioning

confidence: 99%

“…Rubbers are distinguished tactically important materials satisfying miscellaneous industrial applications . To overcome the poor mechanical strength of neat rubbers, nanoparticles like carbon black and silica are commonly used.…”

Section: Introductionmentioning

confidence: 99%

Influence of Ionic Liquids on Structure and Rheological Behaviors of Silica-Filled Butadiene Rubber

Hussain

Yasin

Akram

et al. 2019

Ind. Eng. Chem. Res.

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“…When stressed, these cross-links allow the chains to move and stretch out and then relax back to their original state once the stress is removed.Elastomers are often referred to as rubber materials due to their rubbery consistency and exibility [5].They nd applications in various industries, including automotive[6], aerospace [7], construction [8], electronics [9], and healthcare [10,11]. They are used in the manufacturing of tires [12], seals [13], gaskets [14], hoses [15], vibration dampers [15], O-rings [16], medical gloves [17], and many other products that require elasticity and resilience.The common examples of elastomers include natural rubber (made from the latex of rubber trees), synthetic rubbers like styrenebutadiene rubber (SBR), neoprene, and silicone rubber.…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel Elastomer with unique properties: Fire and Radiation resistance

Mohamed,

Mahmoud

2024

Preprint

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This study aims to create a novel, distinct form of elastomer with superior ability to resist fire, high resistance to radiation, and resistance to environmental conditions such as temperature and solvents. This type of natural-based elastomer was prepared using carboxymethyl cellulose CMC, polyacrylic acid PAA, crosslinked with tannic acid TA. Most techniques in elastomermanu facture technologies are unfriendly and participate in increasing carbon emissions. Gamma radiation was used as a clean tool for copolymerization and crosslinking the elastomer. The irradiation dose of 5 kGy with a rate of 3.32 kGy/h was enough to produce CMC/PAA/TAelastomer. The properties of the produced elastomer were investigated by Fourier-transformed infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and Limiting oxygen index (LOI). CMC/PAA/TA has high resistance to solvents such as acetone, benzene, HCl, and HNO3. The tensile strength is 3.376 MPa, the elongation percent is 501.689%, and the LOI value is 30%. The produced elastomer possessed excellent gamma radiation resistance. The elastomer was exposed later to 1864 kGy of gamma radiation without showing degradation and retained its properties, as confirmed by FTIR, TGA, and mechanical properties. After investigation, it can be inferred that the produced CMC/PAA/TA elastomer exhibited outstanding properties.

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“…Application of elastomers for use in high-pressure and high-temperature (HPHT) environments is still a major challenge. − Continued growth in technical development invokes interest in pursuing high-performance elastomers, such as fluoroelastomers (FKMs) that can withstand extreme conditions. Under HPHT conditions, these elastomers commonly fail by a process termed rapid gas decompression (RGD).…”

Section: Introductionmentioning

confidence: 99%

Effect of Pressure and Temperature on the Sorption of Gases by Fluoroelastomers

Cai

Surve

Yun

et al. 2022

Ind. Eng. Chem. Res.

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Fluoroelastomers (FKMs) are widely used in high-pressure and high-temperature environments in the oil and gas industry. However, gas sorption at high pressure and high temperature in FKMs still remains unclear. Understanding the gas sorption process in FKMs at high pressure and temperature will help in the prevention of failure due to rapid gas decompression. In this work, we investigated primarily the effect of pressure (up to 15,000 kPa) and temperature (up to 125 °C) on CO 2 and N 2 gas sorption in FKMs. The isothermal solubility of the gases increases linearly with an increase in pressure in accordance with Henry′s law. The pressure dependence of solubility is much stronger for CO 2 compared to N 2 . The kinetics of sorption for both the gases was modeled and analyzed. CO 2 gas sorption showed higher activation energy (9.8 ± 1.0 kJ/mol) compared to N 2 gas sorption (1.1 ± 0.1 kJ/mol) at 3000 kPa. In addition, the effect of pressure and temperature on the diffusivity and permeability of gases in FKMs has been quantitatively interpreted. The solubility and diffusivity of CO 2 gas decreased from 50.3 mg gas /g polymer and 8.4 × 10 −7 cm 2 /s to 35.6 mg gas /g polymer and 7.2 × 10 −7 cm 2 /s with increasing loading of carbon black up to 40 wt % at 50 °C, respectively. The results were compared with a practical FKM composition.

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Elastomers and Adhesives for Aerospace Applications

Cited by 6 publications

References 17 publications

Influence of Ionic Liquids on Structure and Rheological Behaviors of Silica-Filled Butadiene Rubber

Influence of Ionic Liquids on Structure and Rheological Behaviors of Silica-Filled Butadiene Rubber

Development of a Novel Elastomer with unique properties: Fire and Radiation resistance

Effect of Pressure and Temperature on the Sorption of Gases by Fluoroelastomers

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