Published March 2012 | Version v1
Journal article Metadata-only

Effect of PTFE irradiation above the melting point on ITS porosity

Creators

  • 1. Karpov Institute of Physical Chemistry, Vorontsovo Pole street 10, Moscow 105064 (Russian Federation)

Description

XRD crystallinity and density of PTFE produced by suspension polymerization were investigated after its irradiation above the melting point as a function of absorbed dose. Comparison of behavior of these two parameters with adsorbed dose revealed that original PTFE is highly porous, the irradiation decreasing substantially its porosity. A qualitative model of pore shrinking in PTFE during irradiation above the melting point was proposed, considering a viscous flow produced by surface tension. - Highlights: ► X-ray degree of crystallinity and density of modified PTFE have been investigated. ► It has been concluded that PTFE porosity is reduced substantially under irradiation. ► A qualitative model of pore shrinking in modified PTFE has been proposed.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.radphyschem.2011.11.009

Additional details

Identifiers

DOI
10.1016/j.radphyschem.2011.11.009;
PII
S0969-806X(11)00407-5;

Publishing Information

Journal Title
Radiation Physics and Chemistry (1993)
Journal Volume
81
Journal Issue
3
Journal Page Range
p. 273-277
ISSN
0969-806X
CODEN
RPCHDM

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43105520
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
COMPARATIVE EVALUATIONS; DENSITY; DOSES; IRRADIATION; MELTING POINTS; POLYMERIZATION; POROSITY; POROUS MATERIALS; SURFACE TENSION; SUSPENSIONS; TEFLON; VISCOUS FLOW; X RADIATION; X-RAY DIFFRACTION
Descriptors DEC
CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ELECTROMAGNETIC RADIATION; EVALUATION; FLUID FLOW; FLUORINATED ALIPHATIC HYDROCARBONS; HALOGENATED ALIPHATIC HYDROCARBONS; IONIZING RADIATIONS; MATERIALS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHYSICAL PROPERTIES; PLASTICS; POLYETHYLENES; POLYMERS; POLYOLEFINS; POLYTETRAFLUOROETHYLENE; RADIATIONS; SCATTERING; SURFACE PROPERTIES; SYNTHETIC MATERIALS; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE

Optional Information

Copyright
Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.