The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch

Morphology and microstructures play a significant role on properties of polymer products. Self-reinforced shish-kebab formed inside the products by elongational flow induced orientation can improve the tensile strength and pressure rating properties, and the density of polymers consisting of shish-k...

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Autores principales:	Yuxi Pan, Nan Li, Jinyan Wang, Danhui Wang, Xiaotong Pan, Cheng Liu, Xigao Jian
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Self-reinforced Shish-kebab Threshold conditions Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/634b5ebd6e784832a66b34fa25dad888
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spelling	oai:doaj.org-article:634b5ebd6e784832a66b34fa25dad8882021-11-14T04:27:55ZThe role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch0142-941810.1016/j.polymertesting.2021.107387https://doaj.org/article/634b5ebd6e784832a66b34fa25dad8882021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941821003329https://doaj.org/toc/0142-9418Morphology and microstructures play a significant role on properties of polymer products. Self-reinforced shish-kebab formed inside the products by elongational flow induced orientation can improve the tensile strength and pressure rating properties, and the density of polymers consisting of shish-kebabs is fairly below those filled with glass fibers, basalt and talc. The threshold parameters to form shish-kebab structure in a novel annular expansion pipe extruder head were determined by high temperature rapid stretch (HTRS) in this study. Different morphologies of HDPE specimens made under the conditions in expansion head by HTRS were studied by SEM, 2D-WAXD and 2D-SAXS, specimen 7 with 15° and 6 mm/s base speed has the optimal shish-kebab structure and specimen 10 with 30° and 5 mm/s has the best orientation parameter and the best shish structure. The DSC results agree well with the morphology results shown in the SEM images. The specimen 7 displays the highest tensile strength, increases about 187% compared with the reference specimen. These outstanding properties were attribute to the perfect and compact shish-kebab structures inside it. The results of HTRS can prove a direction guide for extrusion processing.Yuxi PanNan LiJinyan WangDanhui WangXiaotong PanCheng LiuXigao JianElsevierarticleSelf-reinforcedShish-kebabThreshold conditionsPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 104, Iss , Pp 107387- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Self-reinforced Shish-kebab Threshold conditions Polymers and polymer manufacture TP1080-1185
spellingShingle	Self-reinforced Shish-kebab Threshold conditions Polymers and polymer manufacture TP1080-1185 Yuxi Pan Nan Li Jinyan Wang Danhui Wang Xiaotong Pan Cheng Liu Xigao Jian The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
description	Morphology and microstructures play a significant role on properties of polymer products. Self-reinforced shish-kebab formed inside the products by elongational flow induced orientation can improve the tensile strength and pressure rating properties, and the density of polymers consisting of shish-kebabs is fairly below those filled with glass fibers, basalt and talc. The threshold parameters to form shish-kebab structure in a novel annular expansion pipe extruder head were determined by high temperature rapid stretch (HTRS) in this study. Different morphologies of HDPE specimens made under the conditions in expansion head by HTRS were studied by SEM, 2D-WAXD and 2D-SAXS, specimen 7 with 15° and 6 mm/s base speed has the optimal shish-kebab structure and specimen 10 with 30° and 5 mm/s has the best orientation parameter and the best shish structure. The DSC results agree well with the morphology results shown in the SEM images. The specimen 7 displays the highest tensile strength, increases about 187% compared with the reference specimen. These outstanding properties were attribute to the perfect and compact shish-kebab structures inside it. The results of HTRS can prove a direction guide for extrusion processing.
format	article
author	Yuxi Pan Nan Li Jinyan Wang Danhui Wang Xiaotong Pan Cheng Liu Xigao Jian
author_facet	Yuxi Pan Nan Li Jinyan Wang Danhui Wang Xiaotong Pan Cheng Liu Xigao Jian
author_sort	Yuxi Pan
title	The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
title_short	The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
title_full	The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
title_fullStr	The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
title_full_unstemmed	The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
title_sort	role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/634b5ebd6e784832a66b34fa25dad888
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The role of expansion angle and speed on shish-kebab formation in expansion pipe extruder head explored by high temperature rapid stretch

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