Glass/polypropylene hybrid knitted fabrics for toughening of thermoset composites

Üzümcü, Emine; Selver, Erdem; ÖZTAŞ, Burak

doi:10.1016/j.mtcomm.2022.104279

Cited by 3 publications

(8 citation statements)

References 39 publications

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“…This phenomenon also occurs in weft-knitted composites reported in other articles. 31,32,34 The bending strength of the transverse hybrid is slightly lower than that of the propylene/glass fiber yarn hybrid weft-knitted reinforced composites at 60-180 MPa. 34 In weft knitting, the weft direction is formed into loops from the weft direction of the same yarn to the weft direction, and the longitudinal direction is the threading of different wales.…”

Section: Bending Propertiesmentioning

confidence: 96%

“…31,32,34 The bending strength of the transverse hybrid is slightly lower than that of the propylene/glass fiber yarn hybrid weft-knitted reinforced composites at 60-180 MPa. 34 In weft knitting, the weft direction is formed into loops from the weft direction of the same yarn to the weft direction, and the longitudinal direction is the threading of different wales. When the warp is bent, the longitudinal stressed yarns are more different in rows, and the stress is more consistent with the yarn orientation.…”

Section: Bending Propertiesmentioning

confidence: 96%

“…33 Üzümcü et al studied the tensile, bending, impact, and postimpact compression (CAI) properties of weft-knitted reinforced thermoset composites containing glass/polypropylene (PP) blended yarns. 34 Li et al investigated the tensile properties of ultra-high molecular weight polyethylene composites under 4-, 6-, and 8layers using plain, rib, and cardigan as weft-knitted structures. 35 The objective is to enhance mechanical properties of composites by adding aramid fibers to glass fiber-reinforced composites and find a suitable hybrid mode and a hybrid ratio, which can not only improve the toughness compared to glass fiberreinforced composites but also enhance cost-effectiveness.…”

Section: Introductionmentioning

confidence: 99%

“…33 Üzümcü et al studied the tensile, bending, impact, and post-impact compression (CAI) properties of weft-knitted reinforced thermoset composites containing glass/polypropylene (PP) blended yarns. 34 Li et al investigated the tensile properties of ultra-high molecular weight polyethylene composites under 4-, 6-, and 8-layers using plain, rib, and cardigan as weft-knitted structures. 35…”

Section: Introductionmentioning

confidence: 99%

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Mechanical performance of aramid/glass fiber hybrid weft-knitting-reinforced composites under low-velocity impact

Dong

Peng³

et al. 2023

Journal of Industrial Textiles

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In response to the defects of easy delamination, poor impact resistance, and low toughness in laminates, intra-layer aramid/glass hybrid weft-knitted reinforced composites without lamination were designed and prepared. This paper investigated the tensile, bending, and impact response of aramid/glass hybrid weft-knitted reinforced composites. Homogeneous and hybrid composites with glass: aramid hybrid ratios of 1:1, 2:1, 3:1, and hybrid modes of transverse hybrid, oblique hybrid, and vertical interlocking hybrid were prepared by vacuum resin transfer molding (VARTM) technique. The tensile and bending properties were evaluated from stress, modulus, and strain/deflection, and a scanning electron microscope (SEM) was employed. The impact response was analyzed from peak force, maximum displacement, and energy absorption. The results confirm that interlacing brittle glass yarns with aramid yarns exhibits a positive hybrid effect. The ratios of 50%, 33%, and 25% aramid fiber in the transverse hybrid enhanced the longitudinal strength by 72.86%, 52.13%, and 22.01%. The mechanical properties of the oblique hybrid are similar in warp and weft direction; by contrast, the other two hybrid methods demonstrate mechanical anisotropy. This article implements the preparation and mechanical properties research of non-laminated hybrid composites based on weft-knitted structures, which broadens the design and selection of prefabricated components for hybrid composites.

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Section: Bending Propertiesmentioning

confidence: 96%

Section: Bending Propertiesmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical performance of aramid/glass fiber hybrid weft-knitting-reinforced composites under low-velocity impact

Dong

Peng³

et al. 2023

Journal of Industrial Textiles

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“…Porous weave composites are gaining more and more attention in the market due to their lightweight and high-formability characteristics, which are widely used in automotive, solar desalination, baskets, and other fields. − Among them, lightweight polypropylene (PP)-based composite basketworks have attracted much attention because of their high strength/stiffness, high manufacture flexibility and low density, and chemical resistance characteristics. , For example, the carbon/PP 2D and 3D woven composites were prepared via multi-step impregnation processes, and the 2D weaving structures have higher strength while the 3D weaving structures had superior notch impact properties . Although the introduction of porous structures can reduce the weight of the material and give it special properties, the mechanical properties are inevitably sacrificed and further restricted in its applications.…”

Section: Introductionmentioning

confidence: 99%

Mechanically Robust Foamed Polypropylene/Bamboo Powder Composite Basketworks by CO₂ Extrusion Foaming

Huang

Chong

et al. 2023

ACS Appl. Polym. Mater.

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Porous weave composites are some of the most important materials in our daily life because of their lightweight, high formability, sound and thermal insulation performance, etc. Unfortunately, the introduction of cellular structures will inevitably sacrifice the mechanical properties of porous materials. Here, we proposed a facile method to prepare mechanically robust foamed polypropylene (PP)/bamboo powder (BP) composite basketworks with sandwich structures (like cellular–solid–cellular structures) by extruding–foaming–weaving procedures. Here, the cellular structures on both sides provided weight reduction, softness, and heat insulation, while the solid part in the center improved the modulus and stiffness of the materials. Also, the evolution mechanism of the sandwich structures was revealed. Moreover, the relationship among the microstructure, thermal insulation, and mechanical thermal properties of the foamed basketworks was studied. For example, the elongation at break and specific modulus can increase from 23.6% and 124 MPa·cm3/g for PP/BP 1 to 53.3% and 350 MPa·cm3/g for PP/BP 4, respectively. Sandwich structures also provide much better thermal insulation than solid structures. Furthermore, the foamed fabrics with different colors were woven into basketworks, which can be used in placemats, decorative belts, baskets, and other fields.

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Tensile properties of flexible composites with knitted reinforcements from various yarn materials

Schwaiger,

Roeper (Röper),

Wolfahrt

et al. 2023

Polymer Composites

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The tensile behavior of a flexible epoxy resin reinforced with knitted reinforcements from various fiber materials was comprehensively studied in the wale and course direction. By measuring dry yarns, temperature‐treated yarns, dry knitted fabrics and flexible composites, the effect of the fiber material and the knitted fabric on the tensile properties was analyzed. The interlock knit structure strongly affected the deformation behavior of the flexible composites which differed significantly from the dry knitted fabrics. The deformation behavior of the flexible composites was monitored using digital image correlation which revealed the formation of cracks and high local strain differences in the course direction for all fiber materials. This was linked to fiber‐matrix debonding by scanning electron microscope observations. In the wale direction, the deformation of the knitted structure under tensile load led to plastic deformation of the matrix material. Overall, with yarns from recycled thermoplastic fibers, a higher maximum stress and strain at break was achieved compared to bio‐based fibers. However, irreversible damage occurred for all fiber materials at similar strain values.Highlights Tensile tests on yarns, knitted fabrics and flexible composites. Investigation of the effect of fiber material on mechanical properties. High local strain differences in composites due to knitted structure. Fiber‐matrix debonding in course direction. Plastic deformation of the matrix material in the wale direction.

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Glass/polypropylene hybrid knitted fabrics for toughening of thermoset composites

Cited by 3 publications

References 39 publications

Mechanical performance of aramid/glass fiber hybrid weft-knitting-reinforced composites under low-velocity impact

Mechanical performance of aramid/glass fiber hybrid weft-knitting-reinforced composites under low-velocity impact

Mechanically Robust Foamed Polypropylene/Bamboo Powder Composite Basketworks by CO₂ Extrusion Foaming

Tensile properties of flexible composites with knitted reinforcements from various yarn materials

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Glass/polypropylene hybrid knitted fabrics for toughening of thermoset composites

Cited by 3 publications

References 39 publications

Mechanical performance of aramid/glass fiber hybrid weft-knitting-reinforced composites under low-velocity impact

Mechanical performance of aramid/glass fiber hybrid weft-knitting-reinforced composites under low-velocity impact

Mechanically Robust Foamed Polypropylene/Bamboo Powder Composite Basketworks by CO2 Extrusion Foaming

Tensile properties of flexible composites with knitted reinforcements from various yarn materials

Contact Info

Product

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About

Mechanically Robust Foamed Polypropylene/Bamboo Powder Composite Basketworks by CO₂ Extrusion Foaming