Premium
Fluorination of polyethylene films
Author(s) -
Volkmann Thekla,
Widdecke Hartmut
Publication year - 1989
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19890250122
Subject(s) - fluorine , polyethylene , scanning electron microscope , low density polyethylene , diffusion , materials science , high density polyethylene , chemical engineering , analytical chemistry (journal) , chemistry , polymer chemistry , organic chemistry , composite material , metallurgy , thermodynamics , physics , engineering
Fluorination of HDPE films (100 and 1800 μm thick) and LDPE films (100 μm thick) with elemental fluorine is described. The films were fluorinated at temperatures between 40°C and 100°C. The degree of fluorination was increased by increasing the concentration of fluorine in the F 2 /N 2 gas mixture. A diffusion‐controlled process was indicated by plotting the measured depth of fluorination against the square root of fluorination time. The chemistry of the process was studied by ESCA measurements or by energy dispersive analyses in the scanning electron microscope.