Paper Title:
Recrystallization in Deformed and Heat Treated PET Polymer Sheets
  Abstract

This is a study on texture, decrystallization, and recrystallization in rolled and heat treated semi–crystalline polymers. Experiments were conducted using wide angle Debye-Scherrer-type X– ray diffraction. Changes in crystallinity were quantitatively monitored as a function of strain and annealing time. It was observed that crystallinity drastically drops during deformation in PET. We suggest that amorphization (decrystallization) is a deformation mechanism which acts as an alternative to crystallographic slip depending on the orientation of the nanocrystalline lamellae. Heat treatment leads to the recrystallization of amorphous PET material and to an enhancement of the original texture of the deformed crystals observed before the heat treatment. We explain this phenomenon in terms of oriented nucleation where amorphous material crystallizes alongside existing crystalline lamellae.

  Info
Periodical
Materials Science Forum (Volumes 467-470)
Edited by
B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot
Pages
551-556
DOI
10.4028/www.scientific.net/MSF.467-470.551
Citation
D. Raabe, N. Chen, "Recrystallization in Deformed and Heat Treated PET Polymer Sheets", Materials Science Forum, Vols. 467-470, pp. 551-556, 2004
Online since
October 2004
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jong Baek Lee, Kwang Hyun Lee, Byung Chul Kang, Byung Won Kang, Sang Ll Lee, Jin Kyung Lee
Abstract:A new type of thermotropic main-chain liquid crystalline polyurethanes containing biphenyl units was synthesized by polyaddition reaction of...
1385
Authors: J. Kobata, Yorinobu Takigawa, Sung Wook Chung, Hiroshi Tsuda, Tokuteru Uesugi, Hisamichi Kimura, Kenji Higashi
Abstract:Microstructure and mechanical properties in friction stir processed (FSPed) Zr-based bulk metallic glass were investigated. The...
1345
Authors: Ulmas Gafurov
Abstract:A modeling method is suggested on the basis of measurable structural and deformation parameters to estimate the interrelation between the...
119
Authors: Jiu Mei Xiao, Xin Chun Shang, Bin Wen
Abstract:Microscopic and macroscopic deformation behavior of ultra-high molecular weight polyethylene (UHMWPE) under the drawing force was studied in...
75
Authors: Shuan Li Du, Jian Feng Gao, Zhong Zhan Sun, Jing Yu Wang
Chapter 6: Polymer Materials
Abstract:1,4-butylene bi-p-hydroxybenzoate (BBHB) was synthesized using methyl p-hydroxyl- benzoate and 1,4-butanediol under catalyst and stabilizer...
891