The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform

Domenico Acierno - One of the best experts on this subject based on the ideXlab platform.

  • Biaxial orientation of Polyamide films: Processability and properties
    Macromolecular Symposia, 2002
    Co-Authors: L Maio, Loredana Incarnato, Paola Scarfato, Domenico Acierno
    Abstract:

    The production of Biaxially Oriented films can be performed with two techniques: the tenter frame and the double bubble process. The most important difference between the two processes is that in tubular orientation the MD and TD stretching are simultaneous. This event is very important specially in the case of Biaxially Oriented Polyamide films to avoid hydrogen bonding which occur during the first stretching stage of tenter frame process and cause resistance to subsequent transverse direction orientation (1-4). Double bubble process consists in the stretching of a tubular film where the stretching ratios in the machine and transverse directions are determined by inside bubble pressure and the difference in roll speeds between the two sets of nips rolls that contain the bubble. The work presented here reports some results about double bubble Polyamide films realised with a laboratory scale system. The study concerns the processability (5-6) of two different Polyamides: a nylon 6 (PA6) and a copolymer of the nylon 6 with isophthalic acid and isophorondiamine (PA6 - IPA.IPD) at 5% w/w of comonomer. Two main process arrangements where adopted differing for first bubble cooling technique: a water cooling and a air cooling. The films produced in both conditions were then characterised with a particular regard to mechanical and barrier performances. Morphological analyses were also carried out in order to correlate the process conditions to structure and properties of films.

L Maio - One of the best experts on this subject based on the ideXlab platform.

  • Biaxial orientation of Polyamide films: Processability and properties
    Macromolecular Symposia, 2002
    Co-Authors: L Maio, Loredana Incarnato, Paola Scarfato, Domenico Acierno
    Abstract:

    The production of Biaxially Oriented films can be performed with two techniques: the tenter frame and the double bubble process. The most important difference between the two processes is that in tubular orientation the MD and TD stretching are simultaneous. This event is very important specially in the case of Biaxially Oriented Polyamide films to avoid hydrogen bonding which occur during the first stretching stage of tenter frame process and cause resistance to subsequent transverse direction orientation (1-4). Double bubble process consists in the stretching of a tubular film where the stretching ratios in the machine and transverse directions are determined by inside bubble pressure and the difference in roll speeds between the two sets of nips rolls that contain the bubble. The work presented here reports some results about double bubble Polyamide films realised with a laboratory scale system. The study concerns the processability (5-6) of two different Polyamides: a nylon 6 (PA6) and a copolymer of the nylon 6 with isophthalic acid and isophorondiamine (PA6 - IPA.IPD) at 5% w/w of comonomer. Two main process arrangements where adopted differing for first bubble cooling technique: a water cooling and a air cooling. The films produced in both conditions were then characterised with a particular regard to mechanical and barrier performances. Morphological analyses were also carried out in order to correlate the process conditions to structure and properties of films.

Loredana Incarnato - One of the best experts on this subject based on the ideXlab platform.

  • Biaxial orientation of Polyamide films: Processability and properties
    Macromolecular Symposia, 2002
    Co-Authors: L Maio, Loredana Incarnato, Paola Scarfato, Domenico Acierno
    Abstract:

    The production of Biaxially Oriented films can be performed with two techniques: the tenter frame and the double bubble process. The most important difference between the two processes is that in tubular orientation the MD and TD stretching are simultaneous. This event is very important specially in the case of Biaxially Oriented Polyamide films to avoid hydrogen bonding which occur during the first stretching stage of tenter frame process and cause resistance to subsequent transverse direction orientation (1-4). Double bubble process consists in the stretching of a tubular film where the stretching ratios in the machine and transverse directions are determined by inside bubble pressure and the difference in roll speeds between the two sets of nips rolls that contain the bubble. The work presented here reports some results about double bubble Polyamide films realised with a laboratory scale system. The study concerns the processability (5-6) of two different Polyamides: a nylon 6 (PA6) and a copolymer of the nylon 6 with isophthalic acid and isophorondiamine (PA6 - IPA.IPD) at 5% w/w of comonomer. Two main process arrangements where adopted differing for first bubble cooling technique: a water cooling and a air cooling. The films produced in both conditions were then characterised with a particular regard to mechanical and barrier performances. Morphological analyses were also carried out in order to correlate the process conditions to structure and properties of films.

Paola Scarfato - One of the best experts on this subject based on the ideXlab platform.

  • Biaxial orientation of Polyamide films: Processability and properties
    Macromolecular Symposia, 2002
    Co-Authors: L Maio, Loredana Incarnato, Paola Scarfato, Domenico Acierno
    Abstract:

    The production of Biaxially Oriented films can be performed with two techniques: the tenter frame and the double bubble process. The most important difference between the two processes is that in tubular orientation the MD and TD stretching are simultaneous. This event is very important specially in the case of Biaxially Oriented Polyamide films to avoid hydrogen bonding which occur during the first stretching stage of tenter frame process and cause resistance to subsequent transverse direction orientation (1-4). Double bubble process consists in the stretching of a tubular film where the stretching ratios in the machine and transverse directions are determined by inside bubble pressure and the difference in roll speeds between the two sets of nips rolls that contain the bubble. The work presented here reports some results about double bubble Polyamide films realised with a laboratory scale system. The study concerns the processability (5-6) of two different Polyamides: a nylon 6 (PA6) and a copolymer of the nylon 6 with isophthalic acid and isophorondiamine (PA6 - IPA.IPD) at 5% w/w of comonomer. Two main process arrangements where adopted differing for first bubble cooling technique: a water cooling and a air cooling. The films produced in both conditions were then characterised with a particular regard to mechanical and barrier performances. Morphological analyses were also carried out in order to correlate the process conditions to structure and properties of films.

Jifu Liu - One of the best experts on this subject based on the ideXlab platform.

  • composite material nylon material for polymer lithium ion battery
    2012
    Co-Authors: Jifu Liu
    Abstract:

    The invention which provides a nylon film material for a polymer lithium ion battery, which aims at providing a nylon of stable thermal property, superior longitudinal and transverse mechanical property, good compatibility of multilayer compositing, synchronous flow and consistent extension, and a manufacturing method of the nylon. The infill of nylon resin comprises enhanced graft POE or EPDM thermal-plastic elastomer and graft copolymer K-MAH, wherein the additive amount of the enhanced graft POE or the EPDM thermalplastic elastomer and the graft copolymer K-MAH at least accounts for 8-12 wt% of the total amount. The infill of nylon resin also comprises Kresin epoxy resin, N-butyl benzsulfamide, silane surface treating agent, silane-treated nano calcium carbonate and glass fiber. The additive amount of the glass fiber accounts for 30-35 wt% of the total amount. The copolymer (EVA) of ethylene-vinyl acetate is also added, wherein the additive amount of the EVA accounts for 10-16 wt% of the total amount. The problems of the excessive extension of BOPA (Biaxially Oriented Polyamide) in the molding process, and layering, and bubbles appearing at the corners and folded edges in heat-sealing layer contraction when the contraction force is greater than the bonding intensity between a BOPA layer and a Al layer can be mainly solved.