Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes

In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved signi...
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Gespeichert in:

Autor*in:	Nie, Min [verfasserIn] Pi, Lin Wang, Qi Li, Xiao

Format:	Artikel
Sprache:	Englisch

Erschienen:	2015

Rechteinformationen:	Nutzungsrecht: © 2015 Wiley Periodicals, Inc.

Schlagwörter:	manufacturing mechanical properties properties and characterization

Übergeordnetes Werk:	Enthalten in: Journal of applied polymer science - Hoboken, NJ [u.a.] : Wiley InterScience, 1959, 132(2015), 33
Übergeordnetes Werk:	volume:132 ; year:2015 ; number:33

Links:	Volltext Link aufrufen

DOI / URN:	10.1002/app.42410

Katalog-ID:	OLC1969840390

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520			\|a In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved significantly but also the toughness was enhanced since a large number of PP chains were promoted to crystallize into β‐form crystals. Furthermore, when rotation extrusion was introduced into the process of PPR pipe, the drag hoop flow caused by mandrel and die rotation was superposed on the axial flow, so the polymer melts in the annulus underwent a helical flow and its flow direction deviated from the axis to drive the molecular orientation off the axial direction, bringing out the increased hoop strength. As a result, PPR pipe with excellent performance was prepared under the combined effect of rotation extrusion and TiO 2 . The antibacterial activity was 99.2%, the hoop tensile strength reached 27.5 MPa, 67.7% higher than that of the convention‐extruded PPR pipe with TiO 2 , and the impact strength was 10.9 kJ/m 2 , increased by 81.6% compared to that of the rotation‐extruded pure PPR pipe. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42410.
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spelling	10.1002/app.42410 doi PQ20160211 (DE-627)OLC1969840390 (DE-599)GBVOLC1969840390 (PRQ)w1125-1f0143c979b1e080050b6a96f6598e5c120923d4e2399b91da9d67658349fe7d3 (KEY)0117731120150000132003300000jointeffectsofrotationalextrusionandtio2onperforma DE-627 ger DE-627 rakwb eng 540 DNB 35.80 bkl 51.70 bkl Nie, Min verfasserin aut Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved significantly but also the toughness was enhanced since a large number of PP chains were promoted to crystallize into β‐form crystals. Furthermore, when rotation extrusion was introduced into the process of PPR pipe, the drag hoop flow caused by mandrel and die rotation was superposed on the axial flow, so the polymer melts in the annulus underwent a helical flow and its flow direction deviated from the axis to drive the molecular orientation off the axial direction, bringing out the increased hoop strength. As a result, PPR pipe with excellent performance was prepared under the combined effect of rotation extrusion and TiO 2 . The antibacterial activity was 99.2%, the hoop tensile strength reached 27.5 MPa, 67.7% higher than that of the convention‐extruded PPR pipe with TiO 2 , and the impact strength was 10.9 kJ/m 2 , increased by 81.6% compared to that of the rotation‐extruded pure PPR pipe. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42410. Nutzungsrecht: © 2015 Wiley Periodicals, Inc. manufacturing mechanical properties properties and characterization Pi, Lin oth Wang, Qi oth Li, Xiao oth Enthalten in Journal of applied polymer science Hoboken, NJ [u.a.] : Wiley InterScience, 1959 132(2015), 33 (DE-627)129595799 (DE-600)240694-9 (DE-576)015088812 0021-8995 nnns volume:132 year:2015 number:33 http://dx.doi.org/10.1002/app.42410 Volltext http://onlinelibrary.wiley.com/doi/10.1002/app.42410/abstract GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 35.80 AVZ 51.70 AVZ AR 132 2015 33
allfields_unstemmed	10.1002/app.42410 doi PQ20160211 (DE-627)OLC1969840390 (DE-599)GBVOLC1969840390 (PRQ)w1125-1f0143c979b1e080050b6a96f6598e5c120923d4e2399b91da9d67658349fe7d3 (KEY)0117731120150000132003300000jointeffectsofrotationalextrusionandtio2onperforma DE-627 ger DE-627 rakwb eng 540 DNB 35.80 bkl 51.70 bkl Nie, Min verfasserin aut Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved significantly but also the toughness was enhanced since a large number of PP chains were promoted to crystallize into β‐form crystals. Furthermore, when rotation extrusion was introduced into the process of PPR pipe, the drag hoop flow caused by mandrel and die rotation was superposed on the axial flow, so the polymer melts in the annulus underwent a helical flow and its flow direction deviated from the axis to drive the molecular orientation off the axial direction, bringing out the increased hoop strength. As a result, PPR pipe with excellent performance was prepared under the combined effect of rotation extrusion and TiO 2 . The antibacterial activity was 99.2%, the hoop tensile strength reached 27.5 MPa, 67.7% higher than that of the convention‐extruded PPR pipe with TiO 2 , and the impact strength was 10.9 kJ/m 2 , increased by 81.6% compared to that of the rotation‐extruded pure PPR pipe. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42410. Nutzungsrecht: © 2015 Wiley Periodicals, Inc. manufacturing mechanical properties properties and characterization Pi, Lin oth Wang, Qi oth Li, Xiao oth Enthalten in Journal of applied polymer science Hoboken, NJ [u.a.] : Wiley InterScience, 1959 132(2015), 33 (DE-627)129595799 (DE-600)240694-9 (DE-576)015088812 0021-8995 nnns volume:132 year:2015 number:33 http://dx.doi.org/10.1002/app.42410 Volltext http://onlinelibrary.wiley.com/doi/10.1002/app.42410/abstract GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 35.80 AVZ 51.70 AVZ AR 132 2015 33
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title	Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes
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title_full	Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes
author_sort	Nie, Min
journal	Journal of applied polymer science
journalStr	Journal of applied polymer science
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author_browse	Nie, Min
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doi_str_mv	10.1002/app.42410
dewey-full	540
title_sort	joint effects of rotational extrusion and tio2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes
title_auth	Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes
abstract	In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved significantly but also the toughness was enhanced since a large number of PP chains were promoted to crystallize into β‐form crystals. Furthermore, when rotation extrusion was introduced into the process of PPR pipe, the drag hoop flow caused by mandrel and die rotation was superposed on the axial flow, so the polymer melts in the annulus underwent a helical flow and its flow direction deviated from the axis to drive the molecular orientation off the axial direction, bringing out the increased hoop strength. As a result, PPR pipe with excellent performance was prepared under the combined effect of rotation extrusion and TiO 2 . The antibacterial activity was 99.2%, the hoop tensile strength reached 27.5 MPa, 67.7% higher than that of the convention‐extruded PPR pipe with TiO 2 , and the impact strength was 10.9 kJ/m 2 , increased by 81.6% compared to that of the rotation‐extruded pure PPR pipe. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42410.
abstractGer	In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved significantly but also the toughness was enhanced since a large number of PP chains were promoted to crystallize into β‐form crystals. Furthermore, when rotation extrusion was introduced into the process of PPR pipe, the drag hoop flow caused by mandrel and die rotation was superposed on the axial flow, so the polymer melts in the annulus underwent a helical flow and its flow direction deviated from the axis to drive the molecular orientation off the axial direction, bringing out the increased hoop strength. As a result, PPR pipe with excellent performance was prepared under the combined effect of rotation extrusion and TiO 2 . The antibacterial activity was 99.2%, the hoop tensile strength reached 27.5 MPa, 67.7% higher than that of the convention‐extruded PPR pipe with TiO 2 , and the impact strength was 10.9 kJ/m 2 , increased by 81.6% compared to that of the rotation‐extruded pure PPR pipe. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42410.
abstract_unstemmed	In this study, effects of titanium dioxide (TiO 2 ) and rotation extrusion on structures and properties of polypropylene random copolymer (PPR) pipes were investigated. The experimental results showed that with the presence of TiO 2 , not only the antibacterial ability of PPR pipe was improved significantly but also the toughness was enhanced since a large number of PP chains were promoted to crystallize into β‐form crystals. Furthermore, when rotation extrusion was introduced into the process of PPR pipe, the drag hoop flow caused by mandrel and die rotation was superposed on the axial flow, so the polymer melts in the annulus underwent a helical flow and its flow direction deviated from the axis to drive the molecular orientation off the axial direction, bringing out the increased hoop strength. As a result, PPR pipe with excellent performance was prepared under the combined effect of rotation extrusion and TiO 2 . The antibacterial activity was 99.2%, the hoop tensile strength reached 27.5 MPa, 67.7% higher than that of the convention‐extruded PPR pipe with TiO 2 , and the impact strength was 10.9 kJ/m 2 , increased by 81.6% compared to that of the rotation‐extruded pure PPR pipe. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42410.
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container_issue	33
title_short	Joint effects of rotational extrusion and TiO2 on performance and antimicrobial properties of extruded polypropylene copolymer pipes
url	http://dx.doi.org/10.1002/app.42410 http://onlinelibrary.wiley.com/doi/10.1002/app.42410/abstract
remote_bool	false
author2	Pi, Lin Wang, Qi Li, Xiao
author2Str	Pi, Lin Wang, Qi Li, Xiao
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author2_role	oth oth oth
doi_str	10.1002/app.42410
up_date	2024-07-04T06:26:42.413Z
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