An investigation on effect of ultraviolet (UV) rays on mechanical properties of epoxy laminates

Naveen, R; Kumar, M. Kishore; Ramesh, M.; Abinaya, R.; Prasath, M.

doi:10.1016/j.matpr.2023.06.257

Cited by 5 publications

(3 citation statements)

References 26 publications

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“…For metal-made aircraft like the ES-19, a coating should be used to protect the airframe from corrosion. However, a weakness of composites is that they may be negatively affected by environmental factors such as heat and UV radiation [30]. The composites used for the CS-23/25 class have high temperature standards; local temperatures should therefore not be a problem.…”

Section: Airframementioning

confidence: 99%

Electric Aircraft Operations: An Interisland Mobility Case Study

Apostolidis,

Donckers,

Peijnenburg

et al. 2024

Aerospace

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This study focuses on the feasibility of electric aircraft operations between the Caribbean islands of Aruba, Bonaire, and Curaçao. It explores the technical characteristics of two different future electric aircraft types (i.e., Alice and ES-19) and compares their operational requirements with those of three conventional types currently in operation in the region. Flight operations are investigated from the standpoint of battery performance, capacity, and consumption, while their operational viability is verified. In addition, the CO2 emissions of electric operations are calculated based on the present energy mix, revealing moderate improvements. The payload and capacity are also studied, revealing a feasible transition to the new types. The impact of the local climate is discussed for several critical components, while the required legislation for safe operations is explored. Moreover, the maintenance requirements and costs of electric aircraft are explored per component, while charging infrastructure in the hub airport of Aruba is proposed and discussed. Overall, this study offers a thorough overview of the opportunities and challenges that electric aircraft operations can offer within the context of this specific islandic topology.

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Section: Airframementioning

confidence: 99%

Electric Aircraft Operations: An Interisland Mobility Case Study

Apostolidis,

Donckers,

Peijnenburg

et al. 2024

Aerospace

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“…Generally graphene oxide have been used to coat GFs by synthesizing from graphite with the Hummers’ method which includes several steps with a variety of chemicals. , These extra processing steps can increase the production cost and complicate the scaling-up of manufacturing processes. However, in today’s culture, there is a tremendous need for materials that are lightweight, strong, and inexpensive . These challenges are being actively addressed by researchers and industry professionals, and ongoing studies aim to overcome these drawbacks and improve the performance and practicality of GF/graphene/PP composites.…”

Section: Introductionmentioning

confidence: 99%

“…However, in today’s culture, there is a tremendous need for materials that are lightweight, strong, and inexpensive. 16 These challenges are being actively addressed by researchers and industry professionals, and ongoing studies aim to overcome these drawbacks and improve the performance and practicality of GF/graphene/PP composites.…”

Section: Introductionmentioning

confidence: 99%

Utilizing Upcycled Graphene Nanoplatelet-Coated Glass Fibers as a Performance Booster and Compatibilizer for Enhanced Mechanical Performance of Polypropylene/Glass Fiber/Graphene Nanoplatelet Composites

Şahin Dündar,

Saner Okan

2024

ACS Omega

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The high usage ratio and elevated density of glass fibers (GFs), often surpassing twice that of polymers, can contribute to undesired increases in the overall density of polymeric materials. One potential solution is the incorporation of graphene as a secondary additive, offering a lower specific gravity and exceptional mechanical properties. In light of this, waste tire-derived graphene nanoplates (GNPs) were optimized for coating onto GFs by considering factors such as surface treatment of the fiber, the dispersion quality of GNP, and the coating technique. The resulting GNP-coated GF (GNP-c-GF) was initially incorporated into pure polypropylene (PP) at low weight percentages (0.1−1 wt %), and 31% increase in the tensile modulus was achieved compared to neat PP. Subsequently, 1 wt % GNP-c-GF was utilized as a compatibilizer in PP/GF/GNP composites to enhance the compatibility between GNP and GF. By strategically incorporating GNP and GNP-c-GF at a lower GF ratio, the detrimental impact on the tensile modulus of 30% GF-filled PP was effectively mitigated, leading to a remarkable enhancement to an impressive value of 5658 MPa. The successful integration of GNP and GNP-c-GF exemplifies their promising potential as additives for achieving superior mechanical properties in composite materials, while concurrently promoting the utilization of recycled content.

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