Reinforcing fibers and method of producing same corona treatment of thermoplastic fibers
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United States of America Patent
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Jan 12, 1982
Grant Date -
N/A
app pub date -
Jul 6, 1979
filing date -
Jul 7, 1978
priority date (Note) -
Expired
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Abstract
Reinforcing fibers of plastic having a surface tension of from 40 dyn/cm to about the surface tension of water are disclosed. The fibers can be easily and uniformly disposed in matrices. For organic matrices, a surface tension of 40-50 dyn/cm is effective. For cement matrices, a surface tension about 70-75 dyn/cm is effective. The high surface tensions are obtained by a corona treatment and subsequent application of a hydrophilic avivage. Corona treatment may be performed on the fibers, or on films from which the fibers are made.
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