Aramid fibers composites to innovative sustainable materials for biomedical applications

Kowsari, Elaheh; Haddadi‐Asl, Vahid; Ajdari, Farshad Boorboor; Hemmat, Jafar

doi:10.1016/b978-0-12-816872-1.00006-6

Cited by 8 publications

(4 citation statements)

References 50 publications

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“…Typical polyamide (PA), i.e., nylon, is a synthetic polymer with high mechanical strength used in implants, and fibrous composites play a vital role in the manufacturing of dentures and suture materials. For antimicrobial applications, chitosan/m-aramid hybrids show enhancement in the surface area of assembled composites [238,239,240,241]. Biostable glass fibers reveal excellent load-bearing capacity in the implants, while antimicrobial properties are manifested by the dissolution of the bioactive glass particles that support bone-bonding [242].…”

Section: Applicationsmentioning

confidence: 99%

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Pagar²,

et al. 2019

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Composites have been found to be the most promising and discerning material available in this century. Presently, composites reinforced with fibers of synthetic or natural materials are gaining more importance as demands for lightweight materials with high strength for specific applications are growing in the market. Fiber-reinforced polymer composite offers not only high strength to weight ratio, but also reveals exceptional properties such as high durability; stiffness; damping property; flexural strength; and resistance to corrosion, wear, impact, and fire. These wide ranges of diverse features have led composite materials to find applications in mechanical, construction, aerospace, automobile, biomedical, marine, and many other manufacturing industries. Performance of composite materials predominantly depends on their constituent elements and manufacturing techniques, therefore, functional properties of various fibers available worldwide, their classifications, and the manufacturing techniques used to fabricate the composite materials need to be studied in order to figure out the optimized characteristic of the material for the desired application. An overview of a diverse range of fibers, their properties, functionality, classification, and various fiber composite manufacturing techniques is presented to discover the optimized fiber-reinforced composite material for significant applications. Their exceptional performance in the numerous fields of applications have made fiber-reinforced composite materials a promising alternative over solitary metals or alloys.

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Section: Applicationsmentioning

confidence: 99%

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Pagar²,

et al. 2019

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“…Its tension/tensile strength depletes by 10-20% at elevated temperatures, which continues to fall within a few hours. When Kevlar is molded, the fbers formed have a tensile strength of approximately 3620 MPa and a relative density of 1.44 [13].…”

Section: Introductionmentioning

confidence: 99%

“…Basalt fbers are prepared from basalt rocks which are obtained from volcanic magma that is solidifed in the open air after fowing as a hot fuid. Te general composition of basalt rocks is, SiO 2 at 51.6-59.3%, Al 2 O 3 at 14.6-18.3%, Fe 2 O 3 at 9.0-14.0%, and CaO at 5.9-9.4% [13]. Comparing the thermal properties of glass fber with the thermal properties of basalt fber, the tensile modulus of basalt fber is about 60.4 ± 18.9 GPa, and the tensile strength is 568 ± 267 MPa [14].…”

Section: Introductionmentioning

confidence: 99%

Experimental Estimation of Energy Absorbed and Impact Strength of Kevlar/Basalt-Epoxy Interwoven Composite Laminate Added with Al2O3 Nanoparticles after High-Velocity Bullet Impact

Joshua

Singh

Venkatanarayanan

et al. 2023

Journal of Engineering

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The use of composites has increased exponentially in most industries, especially in the aerospace industry; the usage of composites has increased by almost 40% in the last 15 years. Aerospace components are often subject to high-impact loads, so it is important to use impact-resistant materials. Kevlar is known for its high-impact resistance and is commonly used as a fiber with various resins to achieve the desired properties. This paper mainly focuses on weaving Kevlar with basalt fiber in plain weave type by the traditional handloom weaving method. The epoxy resin, along with the harder, is then mixed with the aluminum oxide nanoparticles (Al2O3) in different percentages [1%-KB1, 3%-KB2, and 5%-KB3] to form the matrix. The laminate fabricated is then subjected to the high-velocity bullet impact of around 250 m/s. A steel hemispherical head projectile was used in the testing, and it was found to be penetrated through all the specimens making holes. The impact strength for all the different specimens was then estimated by calculating the bullet damage area and energy absorbed. The plate added with 3% Al2O3 nanoparticle was found to have improved impact strength when compared with the other two specimens. This plate can be used for bulletproof and other high-velocity impact applications.

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“…The strength and stiffness of CF are higher compared to Kevlar. The superiority of aramid over CF is in its toughness, ability to absorb an impact load, and lower density (1.44 g/cm 3 ) [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Due to its toughness property, aramid fiber is frequently employed in military applications for ballistic body armor and cut-resistant safety equipment.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Open-Hole Strength and Toughness of Sandwich Carbon-Kevlar Woven Composite Laminates

et al. 2023

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Fiber-reinforced plastic composites are sensitive to holes, as they cut the main load-carrying member in the composite (fibers) and they induce out-of-plane stresses. In this study, we demonstrated notch sensitivity enhancement in a hybrid carbon/epoxy (CFRP) composite with a Kevlar core sandwich compared to monotonic CFRP and Kevlar composites. Open-hole tensile samples were cut using waterjet cutting at different width to diameter ratios and tested under tensile loading. We performed an open-hole tension (OHT) test to characterize the notch sensitivity of the composites via the comparison of the open-hole tensile strength and strain as well as the damage propagation (as monitored via CT scan). The results showed that hybrid laminate has lower notch sensitivity than CFRP and KFRP laminates because the strength reduction rate with hole size was lower. Moreover, this laminate showed no reduction in the failure strain by increasing the hole size up to 12 mm. At w/d = 6, the lowest drop in strength showed by the hybrid laminate was 65.4%, followed by the CFRP and KFRP laminates with 63.5% and 56.1%, respectively. For the specific strength, the hybrid laminate showed a 7% and 9% higher value as compared with CFRP and KFRP laminates, respectively. The enhancement in notch sensitivity was due to its progressive damage mode, which was initiated via delamination at the Kevlar–carbon interface, followed by matrix cracking and fiber breakage in the core layers. Finally, matrix cracking and fiber breakage occurred in the CFRP face sheet layers. The specific strength (normalized strength and strain to density) and strain were larger for the hybrid than the CFRP and KFRP laminates due to the lower density of Kevlar fibers and the progressive damage modes which delayed the final failure of the hybrid composite.

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Aramid fibers composites to innovative sustainable materials for biomedical applications

Cited by 8 publications

References 50 publications

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Experimental Estimation of Energy Absorbed and Impact Strength of Kevlar/Basalt-Epoxy Interwoven Composite Laminate Added with Al2O3 Nanoparticles after High-Velocity Bullet Impact

Enhanced Open-Hole Strength and Toughness of Sandwich Carbon-Kevlar Woven Composite Laminates

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