CN101948249A - Environmental-friendly microsphere glass with high refractive index and preparation method thereof - Google Patents

Abstract

The invention discloses environmental-friendly microsphere glass with high refractive index and a preparation method thereof, wherein the microsphere glass comprises the following raw material components in percentage by weight: 33-53% of TiO2, 30-53% of BaO, 1-8% of SiO2, 0-10% of ZrO2, 0.5-3% of CaO, 1-5% of SrO, 0-3% of TeO2, 0-5% of WO3, 0-2% of Nb2O5, 0-1% of La2O3, and 1-2% of Bi2O3; and the preparation method comprises the steps of: evenly mixing the raw material components; melting and homogenizing the components in a platinum crucible or a refractory matter tank furnace at a temperature of 1380-1480 DEG C; carrying out quenching after the melting, crushing to the particle size of 20-90mum and adopting a flame spraying method to manufacture the product. The microsphere glass provided by the invention can be produced in large scale by adopting the platinum crucible and the refractory matter tank furnace, does not include hazardous elements, and has the advantages of lower cost and favorable crystallization property and high-temperature viscosity property.

Description

Environmental protection high-refractivity microbead glass and preparation method thereof

Affiliated technical field

The present invention relates to a kind of microbead glass, particularly a kind of environmental protection high-refractivity microbead glass and preparation method thereof.

Background technology

At present, have in the patent family and use lead-containing materials to make high refractive index glass micro pearl, as English Patent GB1130284, the U.S. is at patent USP3293051, and German Patent DD258133 etc. are because lead-containing materials bans use of now to the pollution of environment.Chinese patent CN86106629 has introduced a kind of glass of high refractive index based on the barium oxide titanium oxide, improve specific refractory power by interpolation Bi2O3, La2O3, raw materials such as Nb2O5, Sb2O3, but wherein lanthanum trioxide, niobium oxides, bismuth oxide content height cause cost too high, and be not suitable for the mass production use, and the weisspiessglanz that wherein contains is because have harm and the use of being limited the quantity of to environment.Domestic patent family only is applicable to mostly makes the retroreflecting microbead glass of specific refractory power below 1.95, and the glass microballon that this class glass is made does not reach high brightness, only is suitable for conventional retroreflecting microballon goods.

Summary of the invention

In order to overcome the deficiency of existing product cost height, not environmental protection, the invention provides a kind of platinum crucible and refractory materials tank furnace of adopting and carry out scale operation, and do not contain harmful element, cost is relatively low, have good crystallization property and high temperature viscosity performance, be suitable for industrial mode and make pearl on a large scale.

The technical solution adopted for the present invention to solve the technical problems is:

The environmental protection high-refractivity microbead glass comprises following weight percent feed composition:

TiO ₂?33～53％，BaO?30～53％，SiO ₂?1～8％，Zr0 ₂?0～10％，CaO?0.5～3％，SrO?1～5％，TeO ₂?0～3％，WO ₃?0～5％，Nb ₂O ₅?0～2％，La ₂O ₃?0～1％，Bi ₂O ₃?1～2％。

Make by the following materials component: TiO ₂33～53%, BaO 30～53%, SiO ₂1～8%, ZrO ₂0～10%, ZnO 0.5～3%, and CaO 0～2%, and SrO 0～3%, WO ₃0～5%, Nb ₂O ₅1～2%, Ta ₂O ₅0～1%, La ₂O ₃0～1%.

Make by the following materials component: TiO ₂33～53%, BaO 30～53%, SiO ₂1～8%, ZrO ₂0～10%, ZnO 0.5～3%, and CaO 0～2%, and MgO 0.5～1%, and SrO 1～5%, TeO ₂0～3%, WO ₃0～5%, Nb ₂O ₅0～1%, Li ₂O 0～1%, Na ₂O 0～1%, K ₂O 0～1%.

The preparation method of described environmental protection high-refractivity microbead glass:

(1) each weight percent component raw material is mixed;

(2) with compound in the tank furnace that platinum crucible or refractory materials are made with 1380～1480 ℃ of fusings, homogenizing;

(3) be cast in quenching in the water behind the glass melting;

(4) prepared glass is crushed to particle diameter 20～90 μ m size ranges after, adopt the conventional flame spraying of using to make this glass microballon.

The invention has the beneficial effects as follows that provide a kind of platinum crucible and refractory materials tank furnace of adopting to carry out scale operation, and do not contain harmful element, cost is relatively low, has good crystallization property and high temperature viscosity performance, is suitable for industrial mode and makes pearl on a large scale.

Embodiment

The present invention is further described below in conjunction with embodiment.Following each component of each embodiment is weight percentage.

Embodiment 1:

Prescription: TiO ₂46%, BaO 37%, SiO ₂4%, ZrO ₂7%, ZnO 2.5%, WO ₃1%, TeO ₂0%, Nb ₂O ₅0%, CaO 2%, La ₂O ₃0%, Y ₂O ₃0%, Ta ₂O ₅0%, Na ₂O 0.5%, and SrO 0%.

Embodiment 2:

Prescription: TiO ₂50%, BaO 35%, SiO ₂3%, ZrO ₂8%, ZnO 2%, WO ₃0%, TeO ₂1%, Nb ₂O ₅0%, CaO 1%, La ₂O ₃0%, Y ₂O ₃0%, Ta ₂O ₅0%, Na ₂O 0%, SrO0%.

Embodiment 3:

Prescription: TiO ₂53%, BaO 30%, SiO ₂3.5%, ZrO ₂6%, ZnO 3%, WO ₃0%, TeO ₂0.5%, Nb ₂O ₅0%, CaO 0%, La ₂O ₃0%,, Y ₂O ₃0%, Ta ₂O ₅0%, Na ₂O 0%, SrO0%.

Embodiment 4:

Prescription: TiO ₂44%, BaO 33%, SiO ₂2%, ZrO ₂5%, ZnO 2%, WO ₃2%, TeO ₂0%, Nb ₂O ₅3%, CaO 2%, La ₂O ₃1%,, Y ₂O ₃0.5%, Ta ₂O ₅0%, Na ₂O0.5%, SrO 5%.

Production process be with in the foregoing description each component undertaken by the above-mentioned technological process of production, each weight percent component raw material is mixed; With compound in the tank furnace that platinum crucible or refractory materials are made with 1380～1480 ℃ of fusings, homogenizing; Be cast in quenching in the water behind the glass melting; After prepared glass is crushed to particle diameter 20～90 μ m size ranges, adopt the conventional flame spraying of using to make this environmental protection high-refractivity microbead glass.Reflecting material brightness such as the reflective tape that the glass microballon that obtains is made, reflective cloth can reach specific refractory power greater than 2.1.

The glass material that the present invention obtains has glass refraction and does not have harmful element, characteristics that cost is low greater than 2.1, in forming, have the crystallization property and the high temperature viscosity characteristic that are suitable for glass microballon thermal-flame Cheng Zhu, be suitable for using platinum crucible and ceramic refractory tank furnace to carry out scale operation, the glass microballon that this glass is made has high reflection characteristic.

Above-mentioned discussion and case study on implementation only for the explanation specific embodiments of the present invention, limit its actual range absolutely not.Protection scope of the present invention is as the criterion with the claim protection domain.

Claims (4)

1. an environmental protection high-refractivity microbead glass is characterized in that, comprises following weight percent feed composition: TiO ₂33～53%, BaO 30～53%, SiO ₂1～8%, ZrO ₂0～10%, CaO 0.5～3%, and SrO 1～5%, TeO ₂0～3%, WO ₃0～5%, Nb ₂O ₅0～2%, La ₂O ₃0～1%, Bi ₂O ₃1～2%.

2. environmental protection high-refractivity microbead glass according to claim 1 is characterized in that, is to be made by the following materials component: TiO ₂33～53%, BaO 30～53%, SiO ₂1～8%, ZrO ₂0～10%, ZnO 0.5～3%, and CaO 0～2%, and SrO 0～3%, WO ₃0～5%, Nb ₂O ₅1～2%, Ta ₂O ₅0～1%, La ₂O ₃0～1%.

3. environmental protection high-refractivity microbead glass according to claim 1 is characterized in that, is to be made by the following materials component: TiO ₂33～53%, BaO 30～53%, SiO ₂1～8%, ZrO ₂0～10%, ZnO 0.5～3%, and CaO 0～2%, and MgO 0.5～1%, and SrO 1～5%, TeO ₂0～3%, WO ₃0～5%, Nb ₂O ₅0～1%, Li ₂O 0～1%, Na ₂O 0～1%, K ₂O 0～1%.

4. the preparation method of environmental protection high-refractivity microbead glass according to claim 1 is characterized in that, may further comprise the steps:

(1) each weight percent component raw material is mixed;

(2) with compound in the tank furnace that platinum crucible or refractory materials are made with 1380～1480 ℃ of fusings, homogenizing;

(3) be cast in quenching in the water behind the glass melting;

(4) prepared glass is crushed to particle diameter 20～90 μ m size ranges after, adopt the conventional flame spraying of using to make this environmental protection high-refractivity microbead glass.