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 language | English |
---|---|
Title of host publication | 72nd Annual Technical Conference of the Society of Plastics Engineers, ANTEC 2014 |
Subtitle of host publication | The Plastics Conference |
Publisher | Society of Plastics Engineers |
Pages | 1526-1530 |
Number of pages | 5 |
Edition | January |
ISBN (Electronic) | 9780878493609, 9781634397087 |
ISBN (Print) | 978-163-4397-08-7 |
State | Published - 2014 |
Externally published | Yes |
Event | 72nd Annual Technical Conference of the Society of Plastics Engineers: The Plastics Conference, ANTEC 2014 - Las Vegas, United States Duration: 28 04 2014 → 30 04 2014 |
Publication series
Name | Annual Technical Conference - ANTEC, Conference Proceedings |
---|---|
Number | January |
Volume | 2 |
Conference
Conference | 72nd Annual Technical Conference of the Society of Plastics Engineers: The Plastics Conference, ANTEC 2014 |
---|---|
Country/Territory | United States |
City | Las Vegas |
Period | 28/04/14 → 30/04/14 |
Bibliographical note
Publisher Copyright:Copyright © (2014) by the Society of Plastics Engineers All rights reserved.
Keywords
- Crystallization
- Injection molding
- Ultrasonic technology