Recovery of deformed polymers. I. Retraction of cold-drawn polycarbonate, polyethylene, and polypropylene

J. B. Park, Donald R Uhlmann

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A study is reported of the similarities and differences in the cold drawing and annealing behavior of amorphous polycarbonate (PC) and semicrystalline polyethylene (PE) and polypropylene (PP). The recovery data for all three polymers cover a range of temperature and initial strains. From these kinetic data, activation-energy spectra characterizing the recovery process are derived using an analysis for processes distributed in activation energy. These spectra are centered about 22-24 kcal/mole for PC, 22 kcal/mole for PE, and 15 kcal/mole for PP, treating recovery in the temperature ranges 170°-150°C for PC, 70°-60°C for PE, and 90°-80°C for PP. The mean activation energies do not vary with the initial strain but seen to decrease with increasing recovery temperature.

Original languageEnglish (US)
Pages (from-to)2928-2935
Number of pages8
JournalJournal of Applied Physics
Volume41
Issue number7
DOIs
StatePublished - 1970
Externally publishedYes

Fingerprint

polycarbonates
polypropylene
polyethylenes
recovery
polymers
activation energy
cold drawing
temperature
energy spectra
annealing
kinetics

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Recovery of deformed polymers. I. Retraction of cold-drawn polycarbonate, polyethylene, and polypropylene. / Park, J. B.; Uhlmann, Donald R.

In: Journal of Applied Physics, Vol. 41, No. 7, 1970, p. 2928-2935.

Research output: Contribution to journalArticle

@article{112114c67a18464ab6294f63248a2019,
title = "Recovery of deformed polymers. I. Retraction of cold-drawn polycarbonate, polyethylene, and polypropylene",
abstract = "A study is reported of the similarities and differences in the cold drawing and annealing behavior of amorphous polycarbonate (PC) and semicrystalline polyethylene (PE) and polypropylene (PP). The recovery data for all three polymers cover a range of temperature and initial strains. From these kinetic data, activation-energy spectra characterizing the recovery process are derived using an analysis for processes distributed in activation energy. These spectra are centered about 22-24 kcal/mole for PC, 22 kcal/mole for PE, and 15 kcal/mole for PP, treating recovery in the temperature ranges 170°-150°C for PC, 70°-60°C for PE, and 90°-80°C for PP. The mean activation energies do not vary with the initial strain but seen to decrease with increasing recovery temperature.",
author = "Park, {J. B.} and Uhlmann, {Donald R}",
year = "1970",
doi = "10.1063/1.1659339",
language = "English (US)",
volume = "41",
pages = "2928--2935",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "7",

}

TY - JOUR

T1 - Recovery of deformed polymers. I. Retraction of cold-drawn polycarbonate, polyethylene, and polypropylene

AU - Park, J. B.

AU - Uhlmann, Donald R

PY - 1970

Y1 - 1970

N2 - A study is reported of the similarities and differences in the cold drawing and annealing behavior of amorphous polycarbonate (PC) and semicrystalline polyethylene (PE) and polypropylene (PP). The recovery data for all three polymers cover a range of temperature and initial strains. From these kinetic data, activation-energy spectra characterizing the recovery process are derived using an analysis for processes distributed in activation energy. These spectra are centered about 22-24 kcal/mole for PC, 22 kcal/mole for PE, and 15 kcal/mole for PP, treating recovery in the temperature ranges 170°-150°C for PC, 70°-60°C for PE, and 90°-80°C for PP. The mean activation energies do not vary with the initial strain but seen to decrease with increasing recovery temperature.

AB - A study is reported of the similarities and differences in the cold drawing and annealing behavior of amorphous polycarbonate (PC) and semicrystalline polyethylene (PE) and polypropylene (PP). The recovery data for all three polymers cover a range of temperature and initial strains. From these kinetic data, activation-energy spectra characterizing the recovery process are derived using an analysis for processes distributed in activation energy. These spectra are centered about 22-24 kcal/mole for PC, 22 kcal/mole for PE, and 15 kcal/mole for PP, treating recovery in the temperature ranges 170°-150°C for PC, 70°-60°C for PE, and 90°-80°C for PP. The mean activation energies do not vary with the initial strain but seen to decrease with increasing recovery temperature.

UR - http://www.scopus.com/inward/record.url?scp=0014806263&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0014806263&partnerID=8YFLogxK

U2 - 10.1063/1.1659339

DO - 10.1063/1.1659339

M3 - Article

AN - SCOPUS:0014806263

VL - 41

SP - 2928

EP - 2935

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 7

ER -