Glass for producing continuous glass fibre |
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IPC classes for russian patent Glass for producing continuous glass fibre (RU 2513903):
Glass for producing glass fibre and high-temperature silica fibre based thereon / 2471731
Invention relates to the glass industry, primarily to production of glass fibre having special properties. The glass for producing glass fibre, containing SiO2, Na2O and/or K2O, ZrO2, CaO, MgO, TiO2, Fe2O3, Al2O3, SO3, is characterised by that it contains said components in the following ratio, wt %: SiO2 - 61.0-65.0; Na2O and/or K2O - 23.0-25.5; ZrO2 - 10.0-13.0; CaO - 0.01-0.03; MgO - 0.01-0.05; TiO2 - 0.01-0.1; Fe2O3 - 0.02-0.1; Al2O3 - 0.1-1.0; SO3 - 0.1-1.0.
 High temperature-resistant silicon oxide-based inorganic fibre and method of producing said fibre / 2469001
Present invention relates to silicon oxide-based inorganic fibre which is resistant to high temperatures. The high temperature-resistant silicon oxide-based inorganic fibre contains the following components in wt %: SiO2 - 81-94; Al2O3 - 6-19; ZrO2 and/or TiO2 - 2-12; Na2O - 0-3; 1.5 wt % other components. Glass melt of the following composition is obtained, wt %: SiO2 - 55-80; Al2O3 - 5-19; Na2O - 15-26; ZrO2 - 0-12; TiO2 - 0-12; 1.5 wt % other components. Threads or spun fibres are formed from the melt. The obtained threads or spun fibres undergo acid extraction. The extracted threads or spun fibres are washed to remove acid residues and/or salt residues and then dried.
Composition of glass resistant to impact of chemical media for production of reinforcing glass fibres / 2466947
Glass composition contains the following components within the limits given below, expressed in mole percent: 67-72% SiO2, 5-9.5, desirably ≥ 7.5% ZrO2, 11-17% R2O (R=Na, K and Li), 0-5.5% Li2O, 0-5.5% K2O, <10%Na2O, 3-9% CaO, less than 1% of admixtures (Al2O3, Fe2O3, Cr2O3, TiO2, MgO, SrO, BaO and P2O5) and does not contain F.
Heat resistant glass fibre / 2436742
Invention relates to a heat resistant glass fibre which is used to increase strength of composite materials. The heat resistant glass fibre contains at least: from 62.0 to 66.0 wt % SiO2; from 14.0 to 16.4 wt % Al2O3; from 0.8 to 1.2 wt % TiO2; from 10.0 to 12.0 wt % CaO; from 4.0 to 6.0 wt % MgO; from 0.8 to 1.5 wt % ZnO; from 0.2 to 0.6 wt % Na2O+K2O+Li2O; from 0.2 to 0.5 wt % CeO2; less than 0.5 wt % TeO2+HfO2+La2O3. A sizing agent of the following composition is applied on the fibre: 2.0-4.0 wt % polyvinyl acetate ethylene copolymer; 0.3-0.7 wt % polyamidoamide; 0.1-0.3 wt % polyvinyl alcohol - polyether mixture; 0.1-0.3 wt % polyolefin wax; 0.4-0.7 wt % adhesion promoter; water in an amount which supplements to 100 wt %.
Composition of alkali- and acid-resistant glass, fibre glass obtained from said glass and composite containing fibre glass / 2406702
Invention relates to composition of alkali- and acid-resistant glass, reinforcing fibre glass obtained from said glass, and composites containing said fibre glass. Said glass contains the following, wt %: SiO2≥58%, preferably ≤ 65%; ZrO2 15-20%; R2O (R=Na, K or Li) ≥ 14%; K2O≤0.1%. preferably ≤ 0.05%; RO(R=Mg, Ca or Sr) 2.5-6%; MgO ≤ 4%; TiO2>1 and ≤ 4%; less than 1% impurities (Al2O3, Fe2O3, Cr2O3), and does not contain F, with the following ratio of components: ZrO2+TiO2 ≥ 17%; ZrO2 / TiO2 ≥ 6. Fibre glass obtained from said composition can be used to reinforce inorganic materials, for example cement, or organic materials, for example plastic.
 Fiber glass compositions / 2358928
Glass fiber composition contains the following components in wt %: from 57 to 60.8 of SiO2, from 0 to 2 of Na2O, from 22 to 25 of CaO, from 12 to 13.6 of Al2O3, up to 0.5 of Fe2O3, from 0 to 2 of K2O, from 1.7 to 3 of MgO, from 0.5 to 2 of TiO2, from 0.6 to 1.5 of Li2O, 2.0 of B2O3. Composition has moulding temperature at logarithm of viscosity 3 not higher than 1230°C, on the basis of standard for comparison NIST 714, value of ΔT is at least 50°C, and ratio of SiO2/RO does not exceed 2.42.
Fiber glass compositions / 2358928
Glass fiber composition contains the following components in wt %: from 57 to 60.8 of SiO2, from 0 to 2 of Na2O, from 22 to 25 of CaO, from 12 to 13.6 of Al2O3, up to 0.5 of Fe2O3, from 0 to 2 of K2O, from 1.7 to 3 of MgO, from 0.5 to 2 of TiO2, from 0.6 to 1.5 of Li2O, 2.0 of B2O3. Composition has moulding temperature at logarithm of viscosity 3 not higher than 1230°C, on the basis of standard for comparison NIST 714, value of ΔT is at least 50°C, and ratio of SiO2/RO does not exceed 2.42.
Composition of alkali- and acid-resistant glass, fibre glass obtained from said glass and composite containing fibre glass / 2406702
Invention relates to composition of alkali- and acid-resistant glass, reinforcing fibre glass obtained from said glass, and composites containing said fibre glass. Said glass contains the following, wt %: SiO2≥58%, preferably ≤ 65%; ZrO2 15-20%; R2O (R=Na, K or Li) ≥ 14%; K2O≤0.1%. preferably ≤ 0.05%; RO(R=Mg, Ca or Sr) 2.5-6%; MgO ≤ 4%; TiO2>1 and ≤ 4%; less than 1% impurities (Al2O3, Fe2O3, Cr2O3), and does not contain F, with the following ratio of components: ZrO2+TiO2 ≥ 17%; ZrO2 / TiO2 ≥ 6. Fibre glass obtained from said composition can be used to reinforce inorganic materials, for example cement, or organic materials, for example plastic.
Heat resistant glass fibre / 2436742
Invention relates to a heat resistant glass fibre which is used to increase strength of composite materials. The heat resistant glass fibre contains at least: from 62.0 to 66.0 wt % SiO2; from 14.0 to 16.4 wt % Al2O3; from 0.8 to 1.2 wt % TiO2; from 10.0 to 12.0 wt % CaO; from 4.0 to 6.0 wt % MgO; from 0.8 to 1.5 wt % ZnO; from 0.2 to 0.6 wt % Na2O+K2O+Li2O; from 0.2 to 0.5 wt % CeO2; less than 0.5 wt % TeO2+HfO2+La2O3. A sizing agent of the following composition is applied on the fibre: 2.0-4.0 wt % polyvinyl acetate ethylene copolymer; 0.3-0.7 wt % polyamidoamide; 0.1-0.3 wt % polyvinyl alcohol - polyether mixture; 0.1-0.3 wt % polyolefin wax; 0.4-0.7 wt % adhesion promoter; water in an amount which supplements to 100 wt %.
Composition of glass resistant to impact of chemical media for production of reinforcing glass fibres / 2466947
Glass composition contains the following components within the limits given below, expressed in mole percent: 67-72% SiO2, 5-9.5, desirably ≥ 7.5% ZrO2, 11-17% R2O (R=Na, K and Li), 0-5.5% Li2O, 0-5.5% K2O, <10%Na2O, 3-9% CaO, less than 1% of admixtures (Al2O3, Fe2O3, Cr2O3, TiO2, MgO, SrO, BaO and P2O5) and does not contain F.
High temperature-resistant silicon oxide-based inorganic fibre and method of producing said fibre / 2469001
Present invention relates to silicon oxide-based inorganic fibre which is resistant to high temperatures. The high temperature-resistant silicon oxide-based inorganic fibre contains the following components in wt %: SiO2 - 81-94; Al2O3 - 6-19; ZrO2 and/or TiO2 - 2-12; Na2O - 0-3; 1.5 wt % other components. Glass melt of the following composition is obtained, wt %: SiO2 - 55-80; Al2O3 - 5-19; Na2O - 15-26; ZrO2 - 0-12; TiO2 - 0-12; 1.5 wt % other components. Threads or spun fibres are formed from the melt. The obtained threads or spun fibres undergo acid extraction. The extracted threads or spun fibres are washed to remove acid residues and/or salt residues and then dried.
Glass for producing glass fibre and high-temperature silica fibre based thereon / 2471731
Invention relates to the glass industry, primarily to production of glass fibre having special properties. The glass for producing glass fibre, containing SiO2, Na2O and/or K2O, ZrO2, CaO, MgO, TiO2, Fe2O3, Al2O3, SO3, is characterised by that it contains said components in the following ratio, wt %: SiO2 - 61.0-65.0; Na2O and/or K2O - 23.0-25.5; ZrO2 - 10.0-13.0; CaO - 0.01-0.03; MgO - 0.01-0.05; TiO2 - 0.01-0.1; Fe2O3 - 0.02-0.1; Al2O3 - 0.1-1.0; SO3 - 0.1-1.0.
Glass for producing continuous glass fibre / 2513903
Glass for producing continuous glass fibre contains components in the following ratios, wt %: SiO2 50.0-60.0; Al2O3 10.0-20.0; CaO 12.0-16.0; MgO 6.0-10.0; TiO2 4.0-10.0; R2O (Na2O+K2O) 0.1-0.7; ZrO2 0.01-0.4; Fe2O3 0.01-0.5, wherein the glass has a low upper limit crystallisation temperature of 1240°C and first hydrolytic class chemical resistance.
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FIELD: chemistry. SUBSTANCE: glass for producing continuous glass fibre contains components in the following ratios, wt %: SiO2 50.0-60.0; Al2O3 10.0-20.0; CaO 12.0-16.0; MgO 6.0-10.0; TiO2 4.0-10.0; R2O (Na2O+K2O) 0.1-0.7; ZrO2 0.01-0.4; Fe2O3 0.01-0.5, wherein the glass has a low upper limit crystallisation temperature of 1240°C and first hydrolytic class chemical resistance. EFFECT: high useful time coefficient of the process of forming fibre and low drop breakage, high efficiency of the glass-melting vessel. 1 tbl
The invention relates to compositions of glasses to produce a continuous, high-modulus, durable and chemically resistant fiberglass, which can be used for the manufacture of glass fibre rovings and fabrics for various purposes, as well as reinforcing materials for fiberglass products used in acidic and alkaline environments. The modulus of elasticity, strength and chemical resistance of the glass fibers is greatly influenced by the chemical composition of the glass. Known glass composition for glass fibre production (patent RF №2129102, CL SS 13/02, 1997), including, wt.%:
The disadvantage of this structure is the high temperature melting glass and the upper limit of the crystallization, the low viscosity melt reformovanii glass fiber, short temperature interval of generation, resulting in the observed unstable process of producing fiber and high droplet breakage. Also known glass to obtain high strength and high modulus fiber (patent EP No. 2450321 A1, CL SS 13/02, 2012 - equivalent), including, wt.%:
However, these bezbabnyh compositions not sufficiently high modulus of elasticity, and the presence of alkalis, especially of lithium oxide, degrades chemical resistance and dielectric properties of the fiber. In addition, the presence of refractory zirconium oxide in to the number to 2% difficult process of glass melting and production of fibers, reduces the coefficient of time (CPV) molding process and greatly increases the droplet breakage. Closest to the claimed composition to the technical essence and the achieved result is a glass for fibre production (patent RF №2263639, CL SS 13/00, 2004 - prototype), including, wt.%:
This glass has a modulus of elasticity 7700 MPa, the strength of the fiber 3400 MPa. The disadvantage of this composition are the low values of strength (3400 MPa) and elastic modulus (7700 MPa). The claimed invention aims at eliminating these disadvantages of this glass composition intended for the production of continuous glass fibers. The main criterion determining the achievement of new quality of the military characteristics and the creation of new products, are not only improving individual performance, such as modulus, strength, high chemical resistance and a combination thereof, but also improved technological properties, providing stability and bezopasnosti molding process of glass fiber mnogopoliarnyi glass melting vessels with a high coefficient of time. The present invention is to develop high-tech high-modulus glass composition, allowing stable production process of continuous fibers, guaranteeing increased CPW process of forming fibers and a decrease in droplet breakage, i.e. performance glass melting vessel. Achieving this task enables obtaining high-modulus fiber with high strength (high tenacity complex and Lisle thread), low coefficient of variation of the strength provided high EC and low drip breakage, as well as good chemical resistance in acid and neutral media. These objectives are achieved by the presence of calcium-manuallyselected glass of titanium dioxide in sufficient quantities (4 to 10 wt.%), in combination with micro additions of zirconium oxide is from 0.01 to 0.04 wt.%, iron oxide is from 0.01 to 0.50 wt.% and oxides of alkaline what's metals potassium and sodium from 0.01 to 0.70 wt.% provides a high modulus of elasticity, increased strength and chemical resistance of the 1st hydrolytic class. The technical result is achieved in that the glass for the production of continuous filament glass fiber, comprising SiO2, Al2O3, CaO, MgO, TiO2, R2O (Na2O+K2O, ZrO2contains these components in the following ratio, wt.%:
moreover, the glass has a low upper temperature limit of the crystallization 1240°C and chemical resistance - 1st hydrolytic class. Example 1. To obtain offered of preparing a mixture containing (wt.%): SiO2- 55,5; Al2O3- 14,0; CaO - 14,0; MgO - 8,0; TiO2- 8,0; R2O - 0,3; ZrO2- 0,1; Fe2O3 is 0.1. The mixture is loaded into a furnace and melted at a temperature of 1550-1570°C, then the molten glass is formed into a continuous glass fiber with a diameter of 8-10 μm at a temperature of 1350-1370°C in mnogopoliarnom glass melting vessel. Examples 1, 2 and 3 are shown in table 1.
Thus, the use of the invention allows to create high-modulus, durable and chemically resistant, continuous glass fiber, which can be used for the manufacture of glass fibre rovings and fabrics for various purposes, including electrical insulation, as reinforcing materials for fiberglass products used in acidic and alkaline environments. The glass for the production of continuous filament glass fiber, comprising SiO2, Al2O3, CaO, MgO, TiO2, R2O (Na2O+K2O, Zr 2, characterized in that it contains components in the following ratio, wt.%:
moreover, the glass has a low upper temperature limit of the crystallization 1240°C and chemical resistance - 1st hydrolytic class.
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