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Investigations on the strength of alkali‐containing glass fibers
Author(s) -
Weisbart Hans
Publication year - 1962
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760020417
Subject(s) - alkali metal , materials science , caustic (mathematics) , composite material , ultimate tensile strength , glass fiber , chemistry , organic chemistry , mathematical physics , physics
The assertion was checked that alkali containing glass fibers, which evolve caustic bases when attacked by water, are, by this fact, responsible for the mechanical deterioration of reinforced plastics. Glass fibers of different chemical composition, when extracted with water, showed no correlation between amount of alkali in the glass and alkali leached out. Tensile strength of glass fibers is not a function of alkali content. Subjected to water, all types of glass fibers keep their strength except when boiled. This applies to fibers coated with coupling agent or in the native state. Deterioration of laminates under the influence of water seems to be primarily a function of the interface.