A low dielectric constant glass fiber, in mass percentage, includes 50%˜60% of SiO2, 10%˜20% of Al2O3, 12%˜20% of B2O3, 0˜4% of CaO, 4%˜10% of MgO, 0.1%˜0.5% of Na2O+K2O, 0˜0.5% of Li2O, 0.2%˜3% of F2 and 0˜0.2% of Fe2O3. Compared with the related art, the glass composition contains higher content o
A low dielectric constant glass fiber, in mass percentage, includes 50%˜60% of SiO2, 10%˜20% of Al2O3, 12%˜20% of B2O3, 0˜4% of CaO, 4%˜10% of MgO, 0.1%˜0.5% of Na2O+K2O, 0˜0.5% of Li2O, 0.2%˜3% of F2 and 0˜0.2% of Fe2O3. Compared with the related art, the glass composition contains higher content of SiO2, which can greatly reduce dielectric properties of the glass fiber. Meanwhile, a small amount of F2 is added thereto, which not only can effectively improve the fiberizing temperature of the glass fiber but also can reduce glass viscosity and density and reduce glass refractive index and dielectric properties. In addition, lower content of CaO is further contained, but almost no alkali metal particles such as Na2O+K2O are contained, which further reduces the dielectric properties of the glass fiber.
대표청구항▼
1. A glass fiber, in mass, comprising: SiO2 50%-60%;Al2O316.3%-18.3%;B2O317.2%-19.6%;CaO 2%-4%;MgO 4%-10%;Na2O + K2O 0.1%-0.5%;Li2O 0-0.5%;F2 0.2%-3%; andFe2O30.01%-0.15%. 2. The glass fiber according to claim 1, wherein the mass percentage of Li2O is 0.05%-0.2%. 3. The glass fiber according to
1. A glass fiber, in mass, comprising: SiO2 50%-60%;Al2O316.3%-18.3%;B2O317.2%-19.6%;CaO 2%-4%;MgO 4%-10%;Na2O + K2O 0.1%-0.5%;Li2O 0-0.5%;F2 0.2%-3%; andFe2O30.01%-0.15%. 2. The glass fiber according to claim 1, wherein the mass percentage of Li2O is 0.05%-0.2%. 3. The glass fiber according to claim 1, in mass percentage, comprising: SiO2 52%-58%;Al2O316.3%-18.3%;B2O317.2%-19.6%;CaO 2%-4%;MgO 4%-6%;Na2O + K2O 0.1%-0.3%;Li2O0.05%-0.2%;F2 0.5%-1.5%; andFe2O30.01%-0.15%. 4. The glass fiber according to claim 1, in mass percentage, comprising: SiO2 53%-56%;Al2O316.3%-18.3%;B2O317.2%-19.6%;CaO 2%-3.5%;MgO 4%-6%;Na2O + K2O0.15%-0.3%;Li2O0.15%-0.2%;F2 0.5%-1.5%; andFe2O30.05%-0.15%.
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이 특허에 인용된 특허 (2)
Yokoi Koji (Osaka JPX) Yoshiyagawa Mitsugi (Osaka JPX) Manabe Seiichiro (Osaka JPX), Glass fibers having low dielectric constant.
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