Plastic coating of glass fibers and its influence on strength
- 1 January 1979
- journal article
- research article
- Published by Taylor & Francis in Fiber and Integrated Optics
- Vol. 2 (3-4) , 267-286
- https://doi.org/10.1080/01468037908202106
Abstract
Sodium borosilicate glass fibers pulled from the melt were plastic coated “on-line” to preserve the fiber strength. By the use of tapered nozzles within the coating applicator the coating could be made concentric around the fiber, and a 40-μm concentric coating was found to be sufficient for the fiber to withstand a mild abrasion test with no deterioration in strength. Strength measurements made in ambient conditions showed that the fiber had a uniform breaking strain of 4% elongation. The same fiber measured at liquid nitrogen temperatures had a breaking strain of 14%, even after extensive handling, which is close to the theoretical glass cohesive strength.Keywords
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