Study on cross-directional tensile properties of bamboo-/polypropylene-blended needle-punched non-woven fabrics

Kumar, Nityanshu; Shabaridharan, K.; Perumalraj, R.; Ilango, V

doi:10.1177/1528083717690611

Cited by 13 publications

(5 citation statements)

References 7 publications

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“…Additionally, the fiber strength can be considered as the major factor controlling geotextile micro-scale mechanical properties, and hence, its macro-scale mechanical response such as tensile strength being the primary function of a geotextile fabric sheets utilized in the civil engineering applications. To this end, the global ("macro-scale") tensile response of nonwoven geotextiles, due to their fibrous inherent characteristics, is the summation of elastic elongations, inelastic (plastic) deformations in the micro-fibers as well as deformations due to the rearrangement of inherent internal structure including void space [12] which is not sensitive to temperature change [11,13] in contrast to the elasto-plastic deformations of the polymeric micro-fibers under stress which is highly sensitive to the changes in the ambient conditions such as temperature as presented in the paper from the results of experimental program at microstate. Therefore, a contradictory response was observed for the micro-fibers extracted from geotextile fabric sheets when tested at the "micro-scale" level -reported in the paper -as opposed to the response inferred from tests at the "macro-scale" level -published earlier by Andrawes et al [11].…”

Section: Further Discussion On Experimental Findingsmentioning

confidence: 99%

“…The tested micro-fibers were extracted from a staple fiber polypropylene (PP) needlepunched nonwoven (NPNW) type geotextile. NPNW geotextiles consist of spatially curved fibers that are often assumed to be randomly oriented and isotropically distributed [12,13]. 3…”

Section: Fabric Characteristics Used In Testing Programmentioning

confidence: 99%

“…However, this is only the micro-level response of the fibers extracted from a geotextile fabric. At global state (macro-level), depending on fiber processing type and fabric manufacturing method, temperature might have minor influence on tensile properties of geotextile fabric sheet [11][12][13] due to internal structural formation which is generated through fiber-fiber interlocking (bonding), nature of inner voids, and ability of fibers for rearrangement under external forces.…”

Section: Tensile Strength τMaxmentioning

confidence: 99%

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Micro-mechanical properties of geotextile fibers: measurement and characterization at cold environmental conditions

Karademir¹

2020

Res. Eng. Struct. Mater.

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One of the most important properties of a fabric (geotextile) and also one of the focus areas of the current research study is its tensile strength, and thus, mechanical properties (modulus, resilience, strength, toughness). To this end, the mechanical properties of the geotextiles must properly be evaluated at the "macro-scale" as well as at the "micro-scale" as they are fibrous synthetic materials including polymeric fibers as well as significant volume of void space. As being a polymer, the mechanical behavior of the geotextile micro-fibers is highly dependent on the ambient conditions including particularly the temperature. In light of this, the tensile behavior of geotextile single micro-fibers was characterized by performing micro-mechanical tensile tests at "micro-scale" level at different cold temperature conditions using Dynamic Thermo-Mechanical Analyzer (DMA) to measure the developed "micro-scale" tensile stress-strain behavior of geotextile micro-fibers. The results examined from the influence of micro-mechanical properties of polymeric fibers on the observed temperature dependent stress-strain curve were used to determine the modulus of elasticity (E), modulus of resilience (UR), ultimate tensile strength (τmax), amount of plastic strain (εp), toughness (UT), rupture strength (τR) for the polypropylene (PP) micro-fiber of needle-punched nonwoven (NPNW) geotextile and the variation in those important mechanical properties with a change in ambient temperature conditions. The experimental results show that the mechanical properties of the PP fibers do not remain constant within the common range of cold temperatures (-10 °C-21 °C) found in typical civil engineering applications such that the temperature change was found to be an important factor affecting the PP fiber micro-mechanical properties such as modulus, strength, toughness and plastic elongation. Therefore, the test results provide an index of behavior at "micro-scale" level for the polymeric geotextile single fibers at cold temperature conditions.

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Section: Further Discussion On Experimental Findingsmentioning

confidence: 99%

Section: Fabric Characteristics Used In Testing Programmentioning

confidence: 99%

Section: Tensile Strength τMaxmentioning

confidence: 99%

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Micro-mechanical properties of geotextile fibers: measurement and characterization at cold environmental conditions

Karademir¹

2020

Res. Eng. Struct. Mater.

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“…Labanieh et al 25 carried out in-plane and out-plane mechanical properties of 3D multi-axial woven composites. Senthil Kumar et al 26 studied the tensile strength of non-woven fabrics made by needle punching machines. Their conclusions can only be suitable for the specific membrane.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of PVDF membrane based on the uni-/bi-axial loading experiments

Ping,

Bai-Jian,

WenRui

et al. 2023

International Journal of Space Structures

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Recently, composite PVDF membranes with good performance have triggered enormous interest because of their great potential application. However, the uncertainty of mechanical properties limits their application. Herein, this paper reveals the elastic modulus properties of the loading angle between warp and tensile direction using the uni-axial tensile test of SH-1050P membrane textile. In addition, the bi-axial tensile test with different loading ratios was implemented. Both uni-axial and bi-axial ductile load-displacement/stress-strain curves are featured. It is the first to establish a relationship between the elastic modulus and the loading angle using a theoretical method based on the assumption that there is no slippage and crease between yarns and matric. Furthermore, simulations with different textile parameters were carried out to verify the theoretical results. The key finding is that the elastic modulus under uni-axial load can be divided into two stages, which are elasticity and plasticity. Both of which are proportional to the sine function applied to two times the loading angle. The Poisson’s ratio of SH-1050P textile can be considered as a fixed value of 0.11. This conclusion can be extended to similar textiles. The outcome of this paper contributes to a deeper understanding of the PVDF memrane’s mechanical behavior and presents a novel insight into its response to different loading conditions.

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“…This has enabled the final high-performance green biocomposites to hold great promise for various practical applications as novel furniture materials, logistics packing materials, and automobile materials . Until now natural plant fibers, such as short hemp fibers, , bagasse fiber, flax, jute, ramie, , sisal, , and bamboo fiber, have been incorporated into the PP matrix to manufacture environmentally benign composites. Much attention has primarily been paid to the microstructure, mechanical, and thermal properties of these PP biocomposites. − Unfortunately, only a little work − has been devoted to improving their friction and wear behaviors which is essential for their practical applications in industry.…”

Section: Introductionmentioning

confidence: 99%

Engineering Interfaces toward High-Performance Polypropylene/Coir Fiber Biocomposites with Enhanced Friction and Wear Behavior

Liu

Wang

et al. 2019

ACS Sustainable Chem. Eng.

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High-performance natural plant fibers reinforced polymer biocomposites with excellent friction and wear properties hold significant practical applications in industry. Unfortunately, it remains a major challenge to engineer the interfacial interactions between the fibers and the polymer matrix, which determines the mechanical and wear properties of the final composites. Herein, we engineer the coir fiber surface by depositing polyethylenimine (PEI) and graphene nanosheets and then prepare the polypropylene/coir fiber biocomposites. As compared with unmodified coir fibers, graphene decorated coir fibers can remarkably reduce the friction and wear, with the lowest friction coefficient at 0.19 and wear rate at 3.5 × 10–7 g/r. The excellent friction-reducing and wear-resistance performances are mainly attributed to three factors, namely the enhanced interfacial bonding, optimized crystallinity, and the formation of a transfer film. The transfer film is comprised of a polypropylene, PEI, and graphene nanosheets. This work provides a facile methodology for the design of high-performance polymer biocomposites with enhanced friction and wear behaviors. The results can also contribute to expand the practical applications of polymer biocomposites in industry.

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Study on cross-directional tensile properties of bamboo-/polypropylene-blended needle-punched non-woven fabrics

Cited by 13 publications

References 7 publications

Micro-mechanical properties of geotextile fibers: measurement and characterization at cold environmental conditions

Micro-mechanical properties of geotextile fibers: measurement and characterization at cold environmental conditions

Mechanical behavior of PVDF membrane based on the uni-/bi-axial loading experiments

Engineering Interfaces toward High-Performance Polypropylene/Coir Fiber Biocomposites with Enhanced Friction and Wear Behavior

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