SU1097576A1 - Composition for treating optical glass fiber - Google Patents

Abstract

COMPOSITION FOR TREATING OPTICAL GLASS FIBER, containing silicone fluid, a mixture of y-aminopropyltrioxysilane with B-aminoisopropyltriethoxysilane at a mass ratio of 4: 1 and a solvent. characterized in that, in order to increase the strength of cTeiino fiber, the composition contains a polymethylsiloxane liquid with a mol. May 2000-4600, a as a solvent - perchlorethylene in the following ratio of components, about. %: Polymethylsiloxane liquid with mol. May 2000-4600 0,9-5,0 A mixture of jp-aminopropyltriethoxysilane with 8-aminoisopropyltriethoxysilane. at a mass ratio of 4: 10.1-1.0 W Perchlorethylene Else

Description

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ot The invention relates to compositions for treating glass fiber materials, in particular optical fiber, intended for the manufacture of optical fibers. At present, optical fibers are widely used for transmitting information in various fields of science and technology. In the manufacture of water, an important factor is the quality of the optical beet fiber and, first of all, the mechanical strength which is determined by the specific strength or the number of breaks in the strings of the steel fiber. A known composition for treating glass fibers based on β-aminopropyltriethoxysilane and ethylene-vinyl acetate copolymer. The fiber treated with such a composition is used for filling with various polymers, in particular polyethylene C. However, the known composition does not allow to obtain high-quality optical fiber due to the thermal instability of these compositions, which leads to an uneven coating of the fiber. The closest in technical essence to the present invention is a composition for treating glass fiber EGL of the following components, wt%: Silicone polyethylenosiloxane emulsion emulsion (preparation GKZH-94) 20 Chromolan 1, 5 Stearax 920 2 Alamine PR 20 AGM-9 (mixture - aminopropyltriethoxysilane and B-aminoisopropyltriethoxysilane at a mass ratio of 4: 1) 0.3 Water (solvent) Remaining Glass products treated with the indicated composition confine heat treatment to 160 C. According to the process conditions In the development of an optical glass fiber, heat treatment is necessary, which leads to partial burn-out of the finish and causes the formation of inelastic sections of glass fiber, which is broken and unsuitable for further processing. The purpose of the invention is to increase the strength of the fiberglass. optical fiber containing silicone fluid, a mixture of y-aminopropyl triethoxysilane with B-aminoisopropyltriethoxysilane at a mass ratio of 4: 1 and dissolve It also contains a polymethylsiloxane liquid with mol. May 2000-4600, and as a solvent - perchlorethylene in the following ratio of components, vol.%: Polymethylsiloxane liquid with mol. May 2000-46000.9-5.0 A mixture of 1p-aminopropyltriethoxysilane with B -aminoisopropyltriethoxysilane at a mass ratio of 4: 1 0.1-1.0 Perchlorethylene Remaining As polymethylsiloxane liquid, mol. 2000 use MPS-50 liquid, as a polymethylsiloxane liquid with a mol. Mae. 4600 - liquid PMS-SO. Examples 1-2. Prepare the formulation by mixing 0.9 ml of PMS-50 or PMS-100, 0.1 ml of AGM-9 and 99 ml of perchlorethylene. The resulting composition is used as a lubricant in the development of optical glass fiber, from which flexible lighting harnesses (GFR) are prepared. The strength of GFRs is tested according to the following mode: a bend angle of + 90 °; the place of bending is 250 mm from the upper end, the lower end is fixed; speed 1 cycle in s; quantity - 10 with a radius of 2.5 D and 1, OD, where D is the outer diameter of the fiber cladding. The obtained data on breaking and specific strength are given in table. one.

Table 1

Example 3. The compositions, the formulation of which is given in table. 2, is prepared analogously to Example 1. The compositions are used as a lubricant for treating optical fiberglass in the manufacture of flexible regular tows of fibers (HML). The strength of the HMTT is tested in the following mode: bending angle bending radius 20 mm; bending speed 20 cycle / min; the place of the bend is distal. As can be seen from those listed in Table 1, increase from 25 to 43, A kg / mm and at

2 data, the composition according to the invention significantly increases the strength

it increases the tensile strength of the optical fibers for bending, flexible lighting bundles of fibers. The composition also allows a significant 50 to 80 g, and the specific strength to reduce the number of breaks to the bend end; the beginning of the bend of the rope at a distance of 10 mm from the end of the sizing; the lower end is not fixed; after every 100 bends, quality control; one cycle is a bend on an angle; the number of cycles is 1000. Quality is judged by the increase in the number of thread breaks. Quantitative characteristics in comparison with the composition of the prototype are given in table. 2. Table 2 5 of these regular bundles of fibers, which leads to a drastic reduction in the defective of products, 1097576 Thus, the invention provides for a decrease in the strength of fiberglass.

Claims (1)

COMPOSITION FOR PROCESSING OPTICAL GLASS FIBER containing an organosilicon liquid, a mixture of γ-aminopropyltrioxysilane with B-aminoisopropyltriethoxysilane at a mass ratio of 4: 1 and a solvent, characterized in that, in order to increase the strength of the glass fiber, the composition contains mimethylsiloxanes as an organosilicon liquid. May. 2000-4600, and as a solvent - perchlorethylene in the following ratio of components, vol. %: Polymethylsiloxane liquid with mol. May. 2000-4600 A mixture of y-aminopropyltriethoxysilane with B-amine ois propropyltriethoxysilane. at a mass ratio of 4: 1 Perchlorethylene 0.9-5.0 0.1-1.0 Rest SU., 1097576