The Experts below are selected from a list of 10056 Experts worldwide ranked by ideXlab platform

K.b. Cheng - One of the best experts on this subject based on the ideXlab platform.

  • Electromagnetic Shielding effectiveness of copper glass fiber knitted fabric reinforced polypropylene composites
    Composites Part A-applied Science and Manufacturing, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna
    Abstract:

    The main objectives of this research work are to develop conductive knitted fabric composite materials and to determine their Electromagnetic Shielding effectiveness (EMSE). Polypropylene is the matrix phase and glass fibers are the reinforcement phase of the composite material. Copper wires are incorporated as conductive fillers to provide the Electromagnetic Shielding properties of the composite material. The amount of copper in the composite material is varied by changing the yarn composition, fabric knit structure and stitch density. The EMSE of various knitted fabric composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted fabric composites with fabric structure, stitch density and yarn compositions are described. Suitability of conductive knitted fabric composites for Electromagnetic Shielding applications is also discussed.

  • Production and Electromagnetic Shielding Effectiveness of the Knitted Stainless Steel/Polyester Fabrics
    Journal of Textile Engineering, 2000
    Co-Authors: K.b. Cheng
    Abstract:

    This paper describes a study on the development of stainless steel/polyester knitted fabrics for Electromagnetic Shielding applications. To facilitate knitting of stainless steel wires and to reduce the material cost, initially blended yarns of staple stainless steel and polyester fibers were fabricated by using the ring and open-end friction spinning methods. The stainless steel/polyester produced by ring and open-end friction spinning methods, and their knitted fabrics made from 14G flat knitting machine were developed successfully. Using a coaxial transmission line holder set-up, the Electromagnetic Shielding effectiveness (EMSE) of various knitted fabrics was carried out in the frequency range from 30kHz to 3000MHz. The variations of EMSE with the knitted structures, yarn type, and the blend ratio of stainless steel fiber and wire to the polyester fiber in the yarns are discussed. The results indicate that the proposed knitted fabric having higher EMSE can be used for the purpose of EMI Shielding, as well as for some electronic and electrical applications.

  • Electromagnetic Shielding effectiveness of copper/glass fiber knitted fabric reinforced polypropylene composites
    Composites Part A: Applied Science and Manufacturing, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna, K.c. Lee
    Abstract:

    The main objectives of this research work are to develop conductive knitted fabric composite materials and to determine their Electromagnetic Shielding effectiveness (EMSE). Polypropylene is the matrix phase and glass fibers are the reinforcement phase of the composite material. Copper wires are incorporated as conductive fillers to provide the Electromagnetic Shielding properties of the composite material. The amount of copper in the composite material is varied by changing the yarn composition, fabric knit structure and stitch density. The EMSE of various knitted fabric composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted fabric composites with fabric structure, stitch density and yarn compositions are described. Suitability of conductive knitted fabric composites for Electromagnetic Shielding applications is also discussed.

  • Development of conductive knitted-fabric-reinforced thermoplastic composites for Electromagnetic Shielding applications
    Journal of Thermoplastic Composite Materials, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna, K.c. Lee
    Abstract:

    This paper presents a feasibility study to develop conductive knitted-fabric-reinforced thermoplastic composites for Electromagnetic Shielding applications. Polypropylene is the matrix phase, and glass fibers are the reinforcement phase of the composite material. Stainless steel wires and staple yarns are incorporated as conductive fillers to facilitate the Electromagnetic Shielding properties of the composite material. Owing to their high stiffness, knitting of glass fibers and stainless steel wires is very difficult. To facilitate the knitting, uncommingled yarns comprising stainless steel wires, glass, and polypropylene fibers are produced using a hollow spindle spinning method. Different kinds of weft knitted fabrics are produced, which are subsequently consolidated into composite materials using a compression molding method. The Electromagnetic Shielding effectiveness (EMSE) of various knitted composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted composites with the fabric structure, stitch density, number of plies, and amount of stainless steel are described. The suitability of the knitted composites developed in this study for Electromagnetic Shielding applications is also discussed.

Seeram Ramakrishna - One of the best experts on this subject based on the ideXlab platform.

  • Electromagnetic Shielding effectiveness of copper glass fiber knitted fabric reinforced polypropylene composites
    Composites Part A-applied Science and Manufacturing, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna
    Abstract:

    The main objectives of this research work are to develop conductive knitted fabric composite materials and to determine their Electromagnetic Shielding effectiveness (EMSE). Polypropylene is the matrix phase and glass fibers are the reinforcement phase of the composite material. Copper wires are incorporated as conductive fillers to provide the Electromagnetic Shielding properties of the composite material. The amount of copper in the composite material is varied by changing the yarn composition, fabric knit structure and stitch density. The EMSE of various knitted fabric composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted fabric composites with fabric structure, stitch density and yarn compositions are described. Suitability of conductive knitted fabric composites for Electromagnetic Shielding applications is also discussed.

  • Electromagnetic Shielding effectiveness of copper/glass fiber knitted fabric reinforced polypropylene composites
    Composites Part A: Applied Science and Manufacturing, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna, K.c. Lee
    Abstract:

    The main objectives of this research work are to develop conductive knitted fabric composite materials and to determine their Electromagnetic Shielding effectiveness (EMSE). Polypropylene is the matrix phase and glass fibers are the reinforcement phase of the composite material. Copper wires are incorporated as conductive fillers to provide the Electromagnetic Shielding properties of the composite material. The amount of copper in the composite material is varied by changing the yarn composition, fabric knit structure and stitch density. The EMSE of various knitted fabric composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted fabric composites with fabric structure, stitch density and yarn compositions are described. Suitability of conductive knitted fabric composites for Electromagnetic Shielding applications is also discussed.

  • Development of conductive knitted-fabric-reinforced thermoplastic composites for Electromagnetic Shielding applications
    Journal of Thermoplastic Composite Materials, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna, K.c. Lee
    Abstract:

    This paper presents a feasibility study to develop conductive knitted-fabric-reinforced thermoplastic composites for Electromagnetic Shielding applications. Polypropylene is the matrix phase, and glass fibers are the reinforcement phase of the composite material. Stainless steel wires and staple yarns are incorporated as conductive fillers to facilitate the Electromagnetic Shielding properties of the composite material. Owing to their high stiffness, knitting of glass fibers and stainless steel wires is very difficult. To facilitate the knitting, uncommingled yarns comprising stainless steel wires, glass, and polypropylene fibers are produced using a hollow spindle spinning method. Different kinds of weft knitted fabrics are produced, which are subsequently consolidated into composite materials using a compression molding method. The Electromagnetic Shielding effectiveness (EMSE) of various knitted composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted composites with the fabric structure, stitch density, number of plies, and amount of stainless steel are described. The suitability of the knitted composites developed in this study for Electromagnetic Shielding applications is also discussed.

K.c. Lee - One of the best experts on this subject based on the ideXlab platform.

  • Electromagnetic Shielding effectiveness of copper/glass fiber knitted fabric reinforced polypropylene composites
    Composites Part A: Applied Science and Manufacturing, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna, K.c. Lee
    Abstract:

    The main objectives of this research work are to develop conductive knitted fabric composite materials and to determine their Electromagnetic Shielding effectiveness (EMSE). Polypropylene is the matrix phase and glass fibers are the reinforcement phase of the composite material. Copper wires are incorporated as conductive fillers to provide the Electromagnetic Shielding properties of the composite material. The amount of copper in the composite material is varied by changing the yarn composition, fabric knit structure and stitch density. The EMSE of various knitted fabric composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted fabric composites with fabric structure, stitch density and yarn compositions are described. Suitability of conductive knitted fabric composites for Electromagnetic Shielding applications is also discussed.

  • Development of conductive knitted-fabric-reinforced thermoplastic composites for Electromagnetic Shielding applications
    Journal of Thermoplastic Composite Materials, 2000
    Co-Authors: K.b. Cheng, Seeram Ramakrishna, K.c. Lee
    Abstract:

    This paper presents a feasibility study to develop conductive knitted-fabric-reinforced thermoplastic composites for Electromagnetic Shielding applications. Polypropylene is the matrix phase, and glass fibers are the reinforcement phase of the composite material. Stainless steel wires and staple yarns are incorporated as conductive fillers to facilitate the Electromagnetic Shielding properties of the composite material. Owing to their high stiffness, knitting of glass fibers and stainless steel wires is very difficult. To facilitate the knitting, uncommingled yarns comprising stainless steel wires, glass, and polypropylene fibers are produced using a hollow spindle spinning method. Different kinds of weft knitted fabrics are produced, which are subsequently consolidated into composite materials using a compression molding method. The Electromagnetic Shielding effectiveness (EMSE) of various knitted composites is measured in the frequency range of 300 kHz to 3 GHz. The variations of EMSE of knitted composites with the fabric structure, stitch density, number of plies, and amount of stainless steel are described. The suitability of the knitted composites developed in this study for Electromagnetic Shielding applications is also discussed.

M Koch - One of the best experts on this subject based on the ideXlab platform.

  • comparison of Electromagnetic Shielding effectiveness properties of diverse conductive textiles via various measurement techniques
    Journal of Materials Processing Technology, 2007
    Co-Authors: H C Chen, M Koch
    Abstract:

    Abstract The occasion of the Electromagnetic interference (EMI) is essentially electrical, with unwanted Electromagnetic emission being either radiated or conducted. The main goal of this investigation is to develop conductive textile composites with desirable properties of Electromagnetic Shielding effectiveness (EMSE). The Shielding effectiveness properties of the conductive fabrics reinforced thermoplastic composites were investigate in this study. The copper wire and stainless steel wire were wrapping with polyamide filaments to reduce the friction and tenacity during weaving and knitting process, enabling the successful weaving and knitting of hybrid conductive yarn, RTCY namely. The co-woven-knitted fabric and woven fabric were fabricated with RTCY to reach desired Electromagnetic Shielding properties. The Shielding effectiveness of different textile processes and materials are also investigated with various measurement techniques. This investigation tried to evaluate the Shielding effectiveness via various measurement techniques and test standards. This investigation carried out with three kind of different coaxial transmission line testing chambers for ASTM 4935, ASTM ES7 and self-constructed one. The various chambers have different wave processing modes on testing. The Shielding effectiveness was measured with different test method and test standard to compare the differences between various measurement systems and try to express the contrast between different wave processing modes on testing.

Dong Faqin - One of the best experts on this subject based on the ideXlab platform.

  • Electromagnetic Shielding Concrete
    Materials review, 2020
    Co-Authors: Dong Faqin
    Abstract:

    On the basis of introducing the kinds of Electromagnetic Shielding materials and the principle of Electromagnetic Shielding,the recent development of Electromagnetic Shielding concrete is reviewed,the study direc- tions and the application prospects of Electromagnetic Shielding concrete are also looked ahead in this paper.Finally, the exploitation and demonstration of Electromagnetic Shielding concrete are expatiated.

  • Recent development of Electromagnetic Shielding concrete
    2020
    Co-Authors: Dong Faqin
    Abstract:

    Based on introducing the kinds of Electromagnetic Shielding materials and the principle of Electromagnetic Shielding,the recent development of Electromagnetic Shielding concrete was reviewed,the study directions and the application prospects of Electromagnetic Shielding concrete were also looked ahead.At last,the exploitation and demonstration of Electromagnetic Shielding concrete was expatiated.

  • Electromagnetic Shielding concrete and developing trend
    2020
    Co-Authors: Dong Faqin
    Abstract:

    The kinds of Electromagnetic Shielding materials were introduced, and the mechanism of Electromagnetic Shielding materials and its development were summarized. The current situation and developing trend of Electromagnetic Shielding concrete were emphasized. At last, the exploitation and demonstration of it were expatiated, and latent application value was point out.