Moisture Absorption Behavior of Carbon Fiber-Reinforced Monomer Casting Nylon Composites

Wan, Xintong; Wang, Y. L.; Zhou, F. G.; Wan, Yizao

doi:10.1177/0731684404033961

Cited by 12 publications

(8 citation statements)

References 21 publications

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“…Wan et al observed the decrement in time taken to reach saturation level and the rate of absorption when the temperature of medium increased [ 92 ]. This may be caused by the severe extensive corrosion of the fibre composite surface and its interior caused by temperature, thus loosening the interface of the carbon fibre matrix [ 93 ].…”

Section: Degradation Of Recycled Carbon Fibre Compositesmentioning

confidence: 99%

A Review on Recycling of Carbon Fibres: Methods to Reinforce and Expected Fibre Composite Degradations

et al. 2022

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Carbon fibres are widely used in modern industrial applications as they are high-strength, light in weight and more reliable than other materials. The increase in the usage of carbon fibres has led to the production of a significant amount of waste. This has become a global issue because valuable carbon fibre waste ends up in landfill. A few initiatives have been undertaken by several researchers to recycle carbon fibre waste; however, the properties of this recycled material are expected to be worse than those of virgin carbon fibre. The incorporation of polymers, nanoparticles and other hybrid materials could enhance the overall properties of recycled carbon fibre waste. However, the degradation of fibre composites is expected to occur when the material is exposed to certain conditions and environments. The study of fibre composite degradation is crucial to enhance their properties, strength, safety and durability for future applications.

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Section: Degradation Of Recycled Carbon Fibre Compositesmentioning

confidence: 99%

A Review on Recycling of Carbon Fibres: Methods to Reinforce and Expected Fibre Composite Degradations

et al. 2022

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“…18,19 It has also been reported that long interaction of FRC's into these trapped fluid droplets may cause swelling of matrix that leads to residual stresses and degradation of fatigue, shear and impact characteristics. 20,21 Aforementioned apprehensions inspired researchers to investigate controlled use of cutting fluids as well as alternative methods for handling grinding temperature. As an example, Cong et al 22 used cold air as a cooling medium for carbon fibre reinforced polymer (CFRP) composite machining.…”

Section: Introductionmentioning

confidence: 99%

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Handa

Sooraj

2022

Journal of Reinforced Plastics and Composites

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Precision machining of Fibre Reinforced Polymer (FRP) Composites needs to be explored further while addressing advanced engineering applications. However, force and temperature-driven damages while machining FRP composites, due to the non-homogenous and low thermal conducting behaviour of fibre-matrix interfaces, place the barrier in this direction. Surface machining using abrasive wheels has been projected as a promising option for fine removal of material in FRPs. However, conventional dry grinding strategy exhibited high grinding force due to continuous interaction of abrasive cutting edges, leading to accumulation of heat at the grinding interface. As the cutting action is continuous, heat dissipation also becomes difficult in this situation. Temperature-driven damages on composite matrix and subsequent failure of reinforced fibres were serious concerns in this case. Although attempted in some situations, usage of cutting fluids was not recommended fully due to wetting effects and agglomeration of swarf that hinder the grinding efficiency. Eccentric Sleeve Grinding (ESG), using an intermittent-progressive cuttings scheme, is proposed in this work as a potential dry grinding strategy for FRPs. Control of heat accumulation through progressive cutting strategy and enhancement of heat dissipation through intermittency in cutting cycle appears to be the unique characteristics of ESG. Experimentation of ESG on carbon fibre reinforced composite samples showed promising grinding temperature reduction, which was justified through a significant reduction in grinding forces, surface defects and roughness.

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“…In the case of natural fibres, the moisture can also influence its hydrophilic groups and promote the formation of intermolecular bonding of hydrogen with fibres that may weaken the fibre-matrix interface and may result in diminution of mechanical properties (shear strength, impact resistance, flexural strength, fatigue strength, etc. ), 30,31 shown in Figure 2. Hence, it can be determined that application of cutting fluids is highly sensitive to the defects that may be induced during machining of FRP composites.…”

Section: Introductionmentioning

confidence: 99%

Feasibility studies on wet grinding of carbon fibre reinforced epoxy polymer at minimum defect condition via eccentric sleeve grinding

Handa

Sooraj

2021

Journal of Reinforced Plastics and Composites

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Although surface grinding is reported to be capable of precision material removal in carbon fibre reinforced epoxy polymer composites (CFRPs), it is highly limited by deprived cutting temperature dissipation, tool wear and sensitivity to undesired cutting defects. Continuous engagement of abrasive grains and successive accumulation of heat at cutting interface in conventional surface grinding results in severe surface damages. Though the controlled application of cutting fluids exhibited improved surface integrity, entrapment of fluid droplets into the defective zones/cracks of fibre, matrix and its interfaces are shown to be stimulating further defect propagation. Present paper investigates the feasibility of improving cutting fluid application in CFRP grinding, establishing a minimum surface defect condition through eccentric sleeve grinding (ESG). The reduction of post-grinding surface defects through an intermittent-progressive cutting scheme in ESG is demonstrated and the efficacy of cutting fluids in such a grinding scheme is illustrated through the comparison of grinding forces and surface characteristics.

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Moisture Absorption Behavior of Carbon Fiber-Reinforced Monomer Casting Nylon Composites

Cited by 12 publications

References 21 publications

A Review on Recycling of Carbon Fibres: Methods to Reinforce and Expected Fibre Composite Degradations

A Review on Recycling of Carbon Fibres: Methods to Reinforce and Expected Fibre Composite Degradations

Eccentric sleeve grinding for thermal management and dry grinding of carbon fibre reinforced composites

Feasibility studies on wet grinding of carbon fibre reinforced epoxy polymer at minimum defect condition via eccentric sleeve grinding

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