The Experts below are selected from a list of 9 Experts worldwide ranked by ideXlab platform

Pibo Ma - One of the best experts on this subject based on the ideXlab platform.

  • Design and manufacture of knitted tubular fabric with auxetic effect
    Journal of The Textile Institute, 2017
    Co-Authors: Andrews Boakye, Yuping Chang, Raji Rafiu, Pibo Ma
    Abstract:

    Auxetic materials refer to materials that exhibit a negative Poisson’s ratio. They behave directly opposite to conventional materials by becoming wider when stretched and narrower when compressed. The unique property of this group of materials has led to them gaining a wider range of applications. This paper presents a study on the use of a Flatbed Knitting Machine to fabricate and experiment on an arrow-headed auxetic tubular fabric. The study used three kinds of yarns: nylon (PA), PES, and cotton as the materials for Knitting the tubular samples. Three variations of an arrow-head design (4 × 4, 6 × 6, and 8 × 8) were also used as the three main structural patterns. The results reveal that the ‘6 × 6’ structure gives the best auxetic effect among the three and the nylon (PA) yarn had the best auxeticity.

Andrews Boakye - One of the best experts on this subject based on the ideXlab platform.

  • Design and manufacture of knitted tubular fabric with auxetic effect
    Journal of The Textile Institute, 2017
    Co-Authors: Andrews Boakye, Yuping Chang, Raji Rafiu, Pibo Ma
    Abstract:

    Auxetic materials refer to materials that exhibit a negative Poisson’s ratio. They behave directly opposite to conventional materials by becoming wider when stretched and narrower when compressed. The unique property of this group of materials has led to them gaining a wider range of applications. This paper presents a study on the use of a Flatbed Knitting Machine to fabricate and experiment on an arrow-headed auxetic tubular fabric. The study used three kinds of yarns: nylon (PA), PES, and cotton as the materials for Knitting the tubular samples. Three variations of an arrow-head design (4 × 4, 6 × 6, and 8 × 8) were also used as the three main structural patterns. The results reveal that the ‘6 × 6’ structure gives the best auxetic effect among the three and the nylon (PA) yarn had the best auxeticity.

Yuping Chang - One of the best experts on this subject based on the ideXlab platform.

  • Design and manufacture of knitted tubular fabric with auxetic effect
    Journal of The Textile Institute, 2017
    Co-Authors: Andrews Boakye, Yuping Chang, Raji Rafiu, Pibo Ma
    Abstract:

    Auxetic materials refer to materials that exhibit a negative Poisson’s ratio. They behave directly opposite to conventional materials by becoming wider when stretched and narrower when compressed. The unique property of this group of materials has led to them gaining a wider range of applications. This paper presents a study on the use of a Flatbed Knitting Machine to fabricate and experiment on an arrow-headed auxetic tubular fabric. The study used three kinds of yarns: nylon (PA), PES, and cotton as the materials for Knitting the tubular samples. Three variations of an arrow-head design (4 × 4, 6 × 6, and 8 × 8) were also used as the three main structural patterns. The results reveal that the ‘6 × 6’ structure gives the best auxetic effect among the three and the nylon (PA) yarn had the best auxeticity.

Raji Rafiu - One of the best experts on this subject based on the ideXlab platform.

  • Design and manufacture of knitted tubular fabric with auxetic effect
    Journal of The Textile Institute, 2017
    Co-Authors: Andrews Boakye, Yuping Chang, Raji Rafiu, Pibo Ma
    Abstract:

    Auxetic materials refer to materials that exhibit a negative Poisson’s ratio. They behave directly opposite to conventional materials by becoming wider when stretched and narrower when compressed. The unique property of this group of materials has led to them gaining a wider range of applications. This paper presents a study on the use of a Flatbed Knitting Machine to fabricate and experiment on an arrow-headed auxetic tubular fabric. The study used three kinds of yarns: nylon (PA), PES, and cotton as the materials for Knitting the tubular samples. Three variations of an arrow-head design (4 × 4, 6 × 6, and 8 × 8) were also used as the three main structural patterns. The results reveal that the ‘6 × 6’ structure gives the best auxetic effect among the three and the nylon (PA) yarn had the best auxeticity.

Raúl Fangueiro - One of the best experts on this subject based on the ideXlab platform.

  • Development of novel auxetic textile structures using high performance fibres
    Materials & Design, 2016
    Co-Authors: Fernanda Steffens, Sohel Rana, Raúl Fangueiro
    Abstract:

    Abstract The present work reports the first attempt of developing auxetic structures using high performance fibres through Knitting technology. Polyamide (PA) and para-aramid (p-AR) fibres and their combination were knitted in to purl structures using Flatbed Knitting Machine, varying different structural (such as loop length, cover factor and yarn density) and Machine parameters (such as take-down load). The influence of different parameters on negative Poisson's ratio (NPR) was thoroughly investigated. It was observed that NPR improved strongly with the increase in loop length of knitted structures. NPR also increased with the decrease in cover factor and increase in course density of knitted fabrics. An increase in take-down load also improved NPR for tightly knitted samples, but led to initial decrease and subsequent increase in NPR for medium and higher loop lengths; except for p-AR fabrics, which showed a decrease in NPR with take-down load for higher loop lengths. Tensile properties of the developed auxetic structures were also found to depend strongly on fibre type and loop length, and the highest tensile performance was achieved with lower loop lengths and p-AR yarns. The p-AR fabrics produced using lower loop length and lower take-down load resulted in the highest NPR of − 0.713. Therefore, the developed knitted structures produced using high performance yarns and showing strong auxetic effects can have huge potential for industrial applications, especially in personal protection materials, such as cut resistance fabrics, bullet proof vest, helmets, and so on.