A study on the achievement of high-modulus polyethylene fibres by drawing

Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are m...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Barham, P. J. [verfasserIn] Keller, A.

Format:	Artikel
Sprache:	Englisch

Erschienen:	1976

Schlagwörter:	Molecular Weight Distribution Draw Ratio Modulus Measurement Draw Speed Drawing Temperature

Anmerkung:	© Chapman and Hall Ltd. 1976

Übergeordnetes Werk:	Enthalten in: Journal of materials science - Kluwer Academic Publishers, 1966, 11(1976), 1 vom: Jan., Seite 27-35
Übergeordnetes Werk:	volume:11 ; year:1976 ; number:1 ; month:01 ; pages:27-35

Links:	Volltext

DOI / URN:	10.1007/BF00541071

Katalog-ID:	OLC2046089928

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520			\|a Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed.
650		4	\|a Molecular Weight Distribution
650		4	\|a Draw Ratio
650		4	\|a Modulus Measurement
650		4	\|a Draw Speed
650		4	\|a Drawing Temperature
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allfields	10.1007/BF00541071 doi (DE-627)OLC2046089928 (DE-He213)BF00541071-p DE-627 ger DE-627 rakwb eng 670 VZ Barham, P. J. verfasserin aut A study on the achievement of high-modulus polyethylene fibres by drawing 1976 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1976 Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed. Molecular Weight Distribution Draw Ratio Modulus Measurement Draw Speed Drawing Temperature Keller, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 11(1976), 1 vom: Jan., Seite 27-35 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:11 year:1976 number:1 month:01 pages:27-35 https://doi.org/10.1007/BF00541071 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4309 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 11 1976 1 01 27-35
spelling	10.1007/BF00541071 doi (DE-627)OLC2046089928 (DE-He213)BF00541071-p DE-627 ger DE-627 rakwb eng 670 VZ Barham, P. J. verfasserin aut A study on the achievement of high-modulus polyethylene fibres by drawing 1976 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1976 Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed. Molecular Weight Distribution Draw Ratio Modulus Measurement Draw Speed Drawing Temperature Keller, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 11(1976), 1 vom: Jan., Seite 27-35 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:11 year:1976 number:1 month:01 pages:27-35 https://doi.org/10.1007/BF00541071 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4309 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 11 1976 1 01 27-35
allfields_unstemmed	10.1007/BF00541071 doi (DE-627)OLC2046089928 (DE-He213)BF00541071-p DE-627 ger DE-627 rakwb eng 670 VZ Barham, P. J. verfasserin aut A study on the achievement of high-modulus polyethylene fibres by drawing 1976 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1976 Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed. Molecular Weight Distribution Draw Ratio Modulus Measurement Draw Speed Drawing Temperature Keller, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 11(1976), 1 vom: Jan., Seite 27-35 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:11 year:1976 number:1 month:01 pages:27-35 https://doi.org/10.1007/BF00541071 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_170 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4309 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4336 AR 11 1976 1 01 27-35
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title_sort	a study on the achievement of high-modulus polyethylene fibres by drawing
title_auth	A study on the achievement of high-modulus polyethylene fibres by drawing
abstract	Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed. © Chapman and Hall Ltd. 1976
abstractGer	Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed. © Chapman and Hall Ltd. 1976
abstract_unstemmed	Abstract Several methods of preparing spherulitic sheets of high-density polyethylene from which high draw ratios (∼ 30x) and high moduli (∼ 800 kbar) may be obtained are described. It is shown that, independent of the method of preparation of the initial sheet, and provided certain conditions are met, the modulus is a unique function of draw ratio. The maximum draw ratio (and hence modulus) achievable from a particular sheet is shown to depend on its morphology and its molecular weight distribution; in particular, the presence of some segregated low molecular weight material appears to be essential. When viewed in the polarizing microscope a “black” region often is observed bounding the spherulites, particularly in those sheets which give high draw ratios. This region is correlated with segregated low molecular weight material. In addition, the recovery properties of high modulus fibres are reported, both after isothermal strain and on annealing when near complete recovery is observed. © Chapman and Hall Ltd. 1976
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title_short	A study on the achievement of high-modulus polyethylene fibres by drawing
url	https://doi.org/10.1007/BF00541071
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author2	Keller, A.
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doi_str	10.1007/BF00541071
up_date	2024-07-04T04:14:19.622Z
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