The Experts below are selected from a list of 954 Experts worldwide ranked by ideXlab platform

Peyshiuan Song - One of the best experts on this subject based on the ideXlab platform.

  • mechanical properties of polypropylene hybrid fiber reinforced concrete
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2008
    Co-Authors: Machine Hsie, Peyshiuan Song
    Abstract:

    This paper investigates the mechanical properties of polypropylene hybrid fiber-reinforced concrete. There are two forms of polypropylene Fibers including coarse monofilament, and Staple Fibers. The content of the former is at 3 kg/m3, 6 kg/m3, and 9 kg/m3, and the content of the latter is at 0.6 kg/m3. The experimental results show that the compressive strength, splitting tensile strength, and flexural properties of the polypropylene hybrid fiber-reinforced concrete are better than the properties of single fiber-reinforced concrete. These two forms of Fibers work complementarily. The Staple Fibers have good fineness and dispersion so they can restrain the cracks in primary stage. The monofilament Fibers have high elastic modulus and stiffness. When the monofilament fiber content is high enough, it is similar to the function of steel fiber. Therefore, they can take more stress during destruction. In addition, hybrid Fibers disperse throughout concrete, and they are bond with mixture well, so the polypropylene hybrid fiber-reinforced concrete can effectively decrease drying shrinkage strain.

Rui Wang - One of the best experts on this subject based on the ideXlab platform.

  • static and dynamic puncture behaviors of compound fabrics with recycled high performance kevlar Fibers
    Composites Part B-engineering, 2014
    Co-Authors: Ting-ting Li, Rui Wang
    Abstract:

    Abstract An economical and flexible compound fabric was prepared using Kevlar fabric and glass fabrics as well as recycled Kevlar/Nylon/low-Tm polyester nonwovens via needle-punching and thermal-bonding processes. Effects of Kevlar Staple Fibers fraction, number of layers and inter-laminar bonding on the static and dynamic puncture resistances were comparatively studied. Findings indicate that increase of Kevlar Staple Fibers fraction improved static puncture resistance more significantly, but inter-laminar shear effect influenced on dynamic puncture resistance more evidently. With 20 wt% recycled Kevlar Fibers, static puncture resistance had linear relation to number of layers, but dynamic puncture resistance showed a parabolic relationship. The contacting pressure and friction strength of compound fabric to probe was to resist against static puncture resistance, but mechanism for dynamic puncture resistance was due to fiber elongation of fabric interlayer and compactness of compound fabric. Yarn brittle-breakage was the main dynamic puncture resistance mechanism for G-CF, but pushing fiber apart was for K-CF, besides of contact pressure of probe to compound fabrics. The improved both of static and dynamic puncture resistances were attributed to cut resistance of Kevlar Fibers and compactness of fiber assembles. Comparatively, cut resistance property of Kevlar Fibers related to dynamic puncture behavior more significantly, but fiber compactness affected static puncture resistance obviously.

  • evaluation of high modulus puncture resistance composite nonwoven fabrics by response surface methodology
    Journal of Industrial Textiles, 2013
    Co-Authors: Ting-ting Li, Rui Wang
    Abstract:

    Recycled high-modulus Kevlar Fibers were blended with Nylon 6 Staple Fibers and biocomponent low-Tm/high-Tm polyester Fibers to form high-modulus puncture-resistance nonwoven fabrics via opening, mixing, carding, lapping, needle-punching, as well as hot-pressing processes. In this paper, biocomponent low-Tm/high-Tm polyester fiber content, needle-punching density, and hot-pressing temperature were changed to evaluate the tensile strength, bursting strength and static puncture resistance of resulting nonwoven fabrics as related to aforementioned three parameters based on response surface methodology. The result shows that the tensile strength is highly related to needle-punching density and hot-pressing temperature; but the bursting strength and static puncture resistance are significantly involved with the aforementioned three parameters. The tensile strength, bursting strength, and static puncture resistance all present increasing and then decreasing trend with increase of its respective concerning param...

  • evaluation of high modulus puncture resistance composite nonwoven fabrics by response surface methodology
    Journal of Industrial Textiles, 2013
    Co-Authors: Rui Wang, Ching Wen Lou, Jiahorng Lin
    Abstract:

    Recycled high-modulus Kevlar Fibers were blended with Nylon 6 Staple Fibers and biocomponent low-Tm/high-Tm polyester Fibers to form high-modulus puncture-resistance nonwoven fabrics via opening, m...

Machine Hsie - One of the best experts on this subject based on the ideXlab platform.

  • mechanical properties of polypropylene hybrid fiber reinforced concrete
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2008
    Co-Authors: Machine Hsie, Peyshiuan Song
    Abstract:

    This paper investigates the mechanical properties of polypropylene hybrid fiber-reinforced concrete. There are two forms of polypropylene Fibers including coarse monofilament, and Staple Fibers. The content of the former is at 3 kg/m3, 6 kg/m3, and 9 kg/m3, and the content of the latter is at 0.6 kg/m3. The experimental results show that the compressive strength, splitting tensile strength, and flexural properties of the polypropylene hybrid fiber-reinforced concrete are better than the properties of single fiber-reinforced concrete. These two forms of Fibers work complementarily. The Staple Fibers have good fineness and dispersion so they can restrain the cracks in primary stage. The monofilament Fibers have high elastic modulus and stiffness. When the monofilament fiber content is high enough, it is similar to the function of steel fiber. Therefore, they can take more stress during destruction. In addition, hybrid Fibers disperse throughout concrete, and they are bond with mixture well, so the polypropylene hybrid fiber-reinforced concrete can effectively decrease drying shrinkage strain.

Osman Babaarslan - One of the best experts on this subject based on the ideXlab platform.

  • method of producing a polyester viscose core spun yarn containing spandex using a modified ring spinning frame
    Textile Research Journal, 2001
    Co-Authors: Osman Babaarslan
    Abstract:

    Core yarns are known as multi-component yarns in which one component, the core material, stays nearly at the center of the yarn while the others cover it. Stretch knitted or woven fabrics can be made from core yarns in which the core is an elastomeric filament such as Dorlastan®, Lycra®, Glospan®, etc., and the covering is made from Staple Fibers. Elastomeric core-spun yarns are usually made on cotton, worsted, or woolen spinning systems. In this study, we briefly describe a method of producing a polyester/viscose covered Lycra core yarn on a modified short-Staple ring spinning frame. We also examine the polyester/viscose Staple yarn and the polyester/viscose core-spun yarns produced on the modified system. The experiment and test results show that core positioning has a direct effect on the structure, properties, and performance of these core-spun yarns.

  • method of producing a polyester viscose core spun yarn containing spandex using a modified ring spinning frame
    Textile Research Journal, 2001
    Co-Authors: Osman Babaarslan
    Abstract:

    Core yarns are known as multi-component yarns in which one component, the core material, stays nearly at the center of the yarn while the others cover it. Stretch knitted or woven fabrics can be made from core yarns in which the core is an elastomeric filament such as Dorlastan®, Lycra®, Glospan®, etc., and the covering is made from Staple Fibers. Elastomeric core-spun yarns are usually made on cotton, worsted, or woolen spinning systems. In this study, we briefly describe a method of producing a polyester/viscose covered Lycra core yarn on a modified short-Staple ring spinning frame. We also examine the polyester/viscose Staple yarn and the polyester/viscose core-spun yarns produced on the modified system. The experiment and test results show that core positioning has a direct effect on the structure, properties, and performance of these core-spun yarns.

Ting-ting Li - One of the best experts on this subject based on the ideXlab platform.

  • static and dynamic puncture behaviors of compound fabrics with recycled high performance kevlar Fibers
    Composites Part B-engineering, 2014
    Co-Authors: Ting-ting Li, Rui Wang
    Abstract:

    Abstract An economical and flexible compound fabric was prepared using Kevlar fabric and glass fabrics as well as recycled Kevlar/Nylon/low-Tm polyester nonwovens via needle-punching and thermal-bonding processes. Effects of Kevlar Staple Fibers fraction, number of layers and inter-laminar bonding on the static and dynamic puncture resistances were comparatively studied. Findings indicate that increase of Kevlar Staple Fibers fraction improved static puncture resistance more significantly, but inter-laminar shear effect influenced on dynamic puncture resistance more evidently. With 20 wt% recycled Kevlar Fibers, static puncture resistance had linear relation to number of layers, but dynamic puncture resistance showed a parabolic relationship. The contacting pressure and friction strength of compound fabric to probe was to resist against static puncture resistance, but mechanism for dynamic puncture resistance was due to fiber elongation of fabric interlayer and compactness of compound fabric. Yarn brittle-breakage was the main dynamic puncture resistance mechanism for G-CF, but pushing fiber apart was for K-CF, besides of contact pressure of probe to compound fabrics. The improved both of static and dynamic puncture resistances were attributed to cut resistance of Kevlar Fibers and compactness of fiber assembles. Comparatively, cut resistance property of Kevlar Fibers related to dynamic puncture behavior more significantly, but fiber compactness affected static puncture resistance obviously.

  • evaluation of high modulus puncture resistance composite nonwoven fabrics by response surface methodology
    Journal of Industrial Textiles, 2013
    Co-Authors: Ting-ting Li, Rui Wang
    Abstract:

    Recycled high-modulus Kevlar Fibers were blended with Nylon 6 Staple Fibers and biocomponent low-Tm/high-Tm polyester Fibers to form high-modulus puncture-resistance nonwoven fabrics via opening, mixing, carding, lapping, needle-punching, as well as hot-pressing processes. In this paper, biocomponent low-Tm/high-Tm polyester fiber content, needle-punching density, and hot-pressing temperature were changed to evaluate the tensile strength, bursting strength and static puncture resistance of resulting nonwoven fabrics as related to aforementioned three parameters based on response surface methodology. The result shows that the tensile strength is highly related to needle-punching density and hot-pressing temperature; but the bursting strength and static puncture resistance are significantly involved with the aforementioned three parameters. The tensile strength, bursting strength, and static puncture resistance all present increasing and then decreasing trend with increase of its respective concerning param...