Crystallization characterization of injection molded parts using ultrasonic technology

Peng Zhao, Jianzhong Fu, Lih Sheng Turng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A method based on ultrasonic technology to study the crystallization characteristics of injection molded parts has been proposed. A new method for calculating the ultrasonic velocity and attenuation is presented. The ultrasonic velocity and attenuation signals, together with differential scanning calorimetry (DSC) measurements, were used to characterize injection molded polylactic acid (PLA) specimens annealed at 80 °C for different periods of time. Experimental results show that the ultrasonic velocity and the ultrasonic attenuation increased with the degree of crystallinity in the annealed specimens. This suggests that the non-destructive ultrasonic technology could be an effective tool in characterizing or monitoring the crystallization of injection molded parts during or after injection molding.

Original languageEnglish
Title of host publication72nd Annual Technical Conference of the Society of Plastics Engineers, ANTEC 2014
Subtitle of host publicationThe Plastics Conference
PublisherSociety of Plastics Engineers
Pages1526-1530
Number of pages5
EditionJanuary
ISBN (Electronic)9780878493609, 9781634397087
ISBN (Print)978-163-4397-08-7
StatePublished - 2014
Externally publishedYes
Event72nd Annual Technical Conference of the Society of Plastics Engineers: The Plastics Conference, ANTEC 2014 - Las Vegas, United States
Duration: 28 04 201430 04 2014

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
NumberJanuary
Volume2

Conference

Conference72nd Annual Technical Conference of the Society of Plastics Engineers: The Plastics Conference, ANTEC 2014
Country/TerritoryUnited States
CityLas Vegas
Period28/04/1430/04/14

Bibliographical note

Publisher Copyright:
Copyright © (2014) by the Society of Plastics Engineers All rights reserved.

Keywords

  • Crystallization
  • Injection molding
  • Ultrasonic technology

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