Effect of mold temperature on short and long-term mechanical properties of PBT

In this work, the effect of mold temperature variation on the short-term mechanical properties obtained from the tensile and Charpy impact tests, and the long-term mechanical properties obtained from dynamic mechanical loading and flexural creep of injection molded polybutylene terepthalate (PBT) ar...

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Format: Article
Language:English
Published: Budapest University of Technology 2008-02-01
Series:eXPRESS Polymer Letters
Subjects:
Online Access:http://www.expresspolymlett.com/letolt.php?file=EPL-0000474&mi=cd
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collection DOAJ
description In this work, the effect of mold temperature variation on the short-term mechanical properties obtained from the tensile and Charpy impact tests, and the long-term mechanical properties obtained from dynamic mechanical loading and flexural creep of injection molded polybutylene terepthalate (PBT) are reported. It has been observed that the effect of changing the processing condition viz. mold temperature on the viscoelastic properties are more pronounced when their long-term behavior is tested. The tensile and impact properties showed only a negligible effect to the change in mold temperature. Further, analysis of the creep curves by applying a four-element Burger model presented a comprehensive understanding of their long-term viscoelastic behavior with respect to the change in mold temperature.
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spelling doaj.art-a4a1987c671d46abb0e5a71eced335d62022-12-21T23:22:34ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2008-02-012211111710.3144/expresspolymlett.2008.15Effect of mold temperature on short and long-term mechanical properties of PBTIn this work, the effect of mold temperature variation on the short-term mechanical properties obtained from the tensile and Charpy impact tests, and the long-term mechanical properties obtained from dynamic mechanical loading and flexural creep of injection molded polybutylene terepthalate (PBT) are reported. It has been observed that the effect of changing the processing condition viz. mold temperature on the viscoelastic properties are more pronounced when their long-term behavior is tested. The tensile and impact properties showed only a negligible effect to the change in mold temperature. Further, analysis of the creep curves by applying a four-element Burger model presented a comprehensive understanding of their long-term viscoelastic behavior with respect to the change in mold temperature.http://www.expresspolymlett.com/letolt.php?file=EPL-0000474&mi=cdMechanical propertiesmold temperaturepolybutylene terepthalatesemicrystallinemolecular packing
spellingShingle Effect of mold temperature on short and long-term mechanical properties of PBT
eXPRESS Polymer Letters
Mechanical properties
mold temperature
polybutylene terepthalate
semicrystalline
molecular packing
title Effect of mold temperature on short and long-term mechanical properties of PBT
title_full Effect of mold temperature on short and long-term mechanical properties of PBT
title_fullStr Effect of mold temperature on short and long-term mechanical properties of PBT
title_full_unstemmed Effect of mold temperature on short and long-term mechanical properties of PBT
title_short Effect of mold temperature on short and long-term mechanical properties of PBT
title_sort effect of mold temperature on short and long term mechanical properties of pbt
topic Mechanical properties
mold temperature
polybutylene terepthalate
semicrystalline
molecular packing
url http://www.expresspolymlett.com/letolt.php?file=EPL-0000474&mi=cd