阅读说明：本技术 一种汽车压制成型前挡风玻璃用玻璃浆料及其制备方法 (Glass slurry for automobile press-formed front windshield and preparation method thereof ) 是由 葛配配 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种汽车压制成型前挡风玻璃用玻璃浆料,该玻璃浆料由以下重量份数的原料制备而成：玻璃粉：65-85份；无机颜料：15-35份；调墨油：18-30份；玻璃粉是由下列重量份数的原料制成：Bi-2O-3：40-60份；SiO-2：25-35份；B-2O-3：0-10份；ZnO：0-10份；ZrO-2：0-5份；TiO-2：0-10份；Al-2O-3：0-5份；Fe-2O-3：0-2份；NaF：0-2份；MgO：0-5份；CaO：0-5份；Li-2O：0-5份；K-2O：0-2份；Na-2O：0-5份。本发明还提供了一种汽车压制成型前挡风玻璃用玻璃浆料的制备方法,包括如下步骤：玻璃粉的制备；调墨油的制备；浆料的制备。本发明得到的玻璃浆料应用于汽车前挡风玻璃具有优异的耐酸性能和抗粘性能,同时还兼顾印刷性,遮盖性,及膨胀系数范围适宜等优点。(The invention discloses glass slurry for a front windshield of an automobile in a compression molding manner, which is prepared from the following raw materials in parts by weight: glass powder: 65-85 parts; inorganic pigment: 15-35 parts; ink mixing oil: 18-30 parts; the glass powder is prepared from the following raw materials in parts by weight: bi 2 O 3 : 40-60 parts; SiO 2 2 : 25-35 parts; b is 2 O 3 : 0-10 parts; ZnO: 0-10 parts; ZrO (ZrO) 2 : 0-5 parts; TiO 2 2 : 0-10 parts; al (Al) 2 O 3 : 0-5 parts; fe 2 O 3 : 0-2 parts of a solvent; NaF: 0-2 parts of a solvent; MgO: 0-5 parts; CaO: 0-5 parts; li 2 O: 0-5 parts; k 2 O: 0-2 parts of a solvent; na (Na) 2 O: 0-5 parts. The invention also provides a press-formed front windshield of the automobileThe preparation method of the glass slurry comprises the following steps: preparing glass powder; preparing ink mixing oil; and (4) preparing slurry. The glass paste obtained by the invention has excellent acid resistance and anti-sticking performance when being applied to the front windshield of the automobile, and also has the advantages of appropriate range of printability, covering performance, expansion coefficient and the like.)

1. The utility model provides a glass thick liquids for windshield before car press forming which characterized in that: the glass slurry is prepared from the following raw materials in parts by weight:

glass powder: 65-85 parts;

inorganic pigment: 15-35 parts;

ink mixing oil: 18-30 parts;

the glass powder is prepared from the following raw materials in parts by weight:

Bi₂O₃: 40-60 parts;

SiO₂: 25-35 parts;

B₂O₃: 0-10 parts;

ZnO: 0-10 parts;

ZrO₂: 0-5 parts;

TiO₂: 0-10 parts;

Al₂O₃: 0-5 parts;

Fe₂O₃: 0-2 parts of a solvent;

NaF: 0-2 parts of a solvent;

MgO: 0-5 parts;

CaO: 0-5 parts;

Li₂o: 0-5 parts;

K₂o: 0-2 parts of a solvent;

Na₂o: 0-5 parts.

2. The glass paste for press molding a front windshield of an automobile according to claim 1, wherein: the glass slurry is prepared from the following raw materials in parts by weight:

glass powder: 70-80 parts;

inorganic pigment: 20-30 parts of a solvent;

ink mixing oil: 20-25 parts;

the glass powder is prepared from the following raw materials in parts by weight:

Bi₂O₃: 45-60 parts;

S iO₂: 28-35 parts;

B₂O₃: 2-8 parts;

ZnO: 1-10 parts;

ZrO₂: 0-3 parts of a solvent;

TiO₂: 0-8 parts of a solvent;

Al₂O₃: 0-3 parts of a solvent;

Fe₂O₃: 0-1 part;

NaF: 0-1 part;

MgO: 0-3 parts of a solvent;

CaO: 0-3 parts of a solvent;

Li₂o: 1-4 parts;

K₂o: 0-1 part;

Na₂o: 1-4 parts.

3. The glass paste for automotive press molding front windshield according to any one of claims 1 to 2, characterized in that: the inorganic pigment is copper-chromium black inorganic pigment.

4. The glass paste for press molding a front windshield of an automobile according to claim 3, wherein: the ink mixing oil is formed by mixing an auxiliary agent and an aqueous solvent in a weight part ratio of 1 (5-10), wherein the auxiliary agent comprises a dispersing agent, a wetting agent and a flatting agent; the weight portion ratio of the dispersing agent, the wetting agent and the flatting agent is (2-3): 2-4): 1.

5. The method for producing a glass paste for an automotive press molding front windshield according to claim 4, characterized by comprising the steps of:

(1) preparing glass powder: adding glass powder raw materials weighed according to the proportion into a mixer to be uniformly mixed, putting the uniformly mixed glass powder raw materials into a crucible, putting the crucible containing the glass powder raw materials into a high-temperature kiln, melting the materials at a certain melting temperature for a certain time to enable the materials to be melted into uniformly mixed liquid, and quickly pouring the melted mixed liquid into water to form glass slag; drying and crushing the glass slag, putting the glass slag into a ball mill, carrying out ball milling for a certain time, putting the ball mill into a drying oven for drying, and sieving to obtain glass powder;

(2) preparing the varnish: adding the dispersing agent, the wetting agent and the flatting agent which are weighed according to the proportion into an aqueous solvent, and stirring and dispersing for 6 hours in a dispersion tank to obtain the varnish;

(3) preparing glass slurry: and (3) uniformly mixing the glass powder obtained in the step (1), the inorganic pigment and the varnish obtained in the step (2) according to a ratio, and carrying out stirring, three-roller grinding, filtering and defoaming processes to obtain the finished glass slurry.

6. The method for producing a glass paste for an automobile press molding front windshield according to claim 5, characterized in that: the melting temperature in the step (1) is 1100-1250 ℃; the melting time in the step (1) is 30-120 min; the rotating speed of the ball mill in the step (1) is 180r/min-250 r/min; the ball milling time in the step (1) is 1-3 h; the drying temperature of the drying oven in the step (1) is 150-220 ℃; the average grain diameter of the glass powder obtained in the step (1) is 0.5-8 μm; the stirring speed in the step (2) is 300r/min-400 r/min; and (4) grinding the mixture by three rollers in the step (3) until the fineness is less than 10 mu m.

Technical Field

The invention relates to the technical field of glass slurry, in particular to glass slurry for a front windshield formed by pressing an automobile and a preparation method thereof.

Background

With the rapid development of the automobile industry, automobiles have moved into thousands of households, change the lives of people, become assistants and partners for the work and life of people, and bring the development of the automobile retail industry. The glass slurry for the automobile is used as an indispensable part in the automobile production process, and is continuously and rapidly developed, so that the requirement of the automobile industry on the glass slurry is greatly improved, and the research on the glass slurry for the automobile is promoted.

The automobile glass slurry is used at the peripheral edge of automobile toughened glass to effectively reduce the ultraviolet transmittance, prevent the glue used for bonding the glass and the automobile body from generating chemical change, and shield the conductive silver slurry to endow the automobile with aesthetic feeling. The automobile glass slurry mainly comprises glass powder, black inorganic pigment, varnish and the like, and is prepared according to a certain proportion, wherein the mass ratio content of the glass powder can reach about 60-80%, and the glass powder plays an important role as a binder in the glass slurry. The glass powder is softened and melted during sintering and is close to liquid state, and when organic components such as varnish and the like are completely decomposed, the glass powder replaces resin to be used as a connecting material to form an enamel body, so that the glass paste is changed from organic bonding to inorganic bonding, and is firmly bonded with glass. The performance of the glass powder directly influences the quality of a sintered glass slurry layer, for example, the components of glass, sintering temperature, heat preservation time, dosage and particle size influence expansion coefficient, film blackness, gloss, acid and alkali resistance, compactness and the like; the expansion coefficient of the glass affects the bonding property, tensile strength, bending strength and the like of the film layer and the toughened glass. As the glass powder for the automobile front windshield sandwich glass slurry, the glass powder has higher requirements on glass due to the unique hot bending process, and the softening temperature of the glass must be low enough to meet the requirements of the construction process.

The glass slurry for the interlayer of the automobile front windshield glass is required to have wide softening temperature range, excellent acid and alkali resistance, excellent anti-sticking property, excellent impact resistance and the like under the condition of lower softening temperature, and in fact, the reduction of the softening temperature of the glass and the improvement of the acid and alkali resistance and the impact resistance are contradictory to a certain extent. At present, automobile toughened glass slurry at home and abroad is mainly a product of companies such as the United states Froude and the Netherlands Xinwanfeng, and the like, and the domestic automobile toughened glass slurry product still has the problems of insufficient acid and alkali resistance, poor adhesion resistance and the like.

Therefore, the development of a glass paste for automobile press molding front windshield, which has excellent low temperature, high acid resistance and strong anti-sticking performance, is a technical problem to be solved urgently.

Disclosure of Invention

In order to solve part of problems in the prior art, the invention aims to solve the problems of insufficient acid and alkali resistance, poor anti-sticking property and the like of the existing domestic automobile glass paste products and provide the automobile glass paste with excellent low temperature, high acid resistance and strong anti-sticking property.

In order to achieve the purpose, the invention provides the following technical scheme that the glass slurry for the automobile press forming front windshield is prepared from the following raw materials in parts by weight:

glass powder: 65-85 parts;

inorganic pigment: 15-35 parts;

ink mixing oil: 18-30 parts;

the glass powder is prepared from the following raw materials in parts by weight:

Bi₂O₃: 40-60 parts;

SiO₂: 25-35 parts;

B₂O₃: 0-10 parts;

ZnO: 0-10 parts;

ZrO₂: 0-5 parts;

TiO₂: 0-10 parts;

Al₂O₃: 0-5 parts;

Fe₂O₃: 0-2 parts of a solvent;

NaF: 0-2 parts of a solvent;

MgO: 0-5 parts;

CaO: 0-5 parts;

Li₂o: 0-5 parts;

K₂o: 0-2 parts of a solvent;

Na₂o: 0-5 parts.

The glass slurry is prepared from the following raw materials in parts by weight:

glass powder: 70-80 parts;

inorganic pigment: 20-30 parts of a solvent;

ink mixing oil: 20-25 parts;

the glass powder is prepared from the following raw materials in parts by weight:

Bi₂O₃: 45-60 parts;

S iO₂: 28-35 parts;

B₂O₃: 2-8 parts;

ZnO: 1-10 parts;

ZrO₂: 0-3 parts of a solvent;

TiO₂: 0-8 parts of a solvent;

Al₂O₃: 0-3 parts of a solvent;

Fe₂O₃: 0-1 part;

NaF: 0-1 part;

MgO: 0-3 parts of a solvent;

CaO: 0-3 parts of a solvent;

Li₂o: 1-4 parts;

K₂o: 0-1 part;

Na₂o: 1-4 parts.

The inorganic pigment is copper-chromium black inorganic pigment.

The ink mixing oil is formed by mixing an auxiliary agent and an aqueous solvent according to the weight part ratio of 1 (5-10), wherein the auxiliary agent comprises a dispersing agent, a wetting agent and a flatting agent; the weight portion ratio of the dispersing agent, the wetting agent and the flatting agent is (2-3): 2-4): 1.

A preparation method of glass slurry for automobile press forming front windshield comprises the following steps:

(1) preparing glass powder: adding glass powder raw materials weighed according to the proportion into a mixer to be uniformly mixed, putting the uniformly mixed glass powder raw materials into a crucible, putting the crucible containing the glass powder raw materials into a high-temperature kiln, melting the materials at a certain melting temperature for a certain time to enable the materials to be melted into uniformly mixed liquid, and quickly pouring the melted mixed liquid into water to form glass slag; drying and crushing the glass slag, putting the glass slag into a ball mill, carrying out ball milling for a certain time, putting the ball mill into a drying oven for drying, and sieving to obtain glass powder;

(2) preparing the varnish: adding the dispersing agent, the wetting agent and the flatting agent which are weighed according to the proportion into an aqueous solvent, and stirring and dispersing for 6 hours in a dispersion tank to obtain the varnish;

(3) preparing glass slurry: and (3) uniformly mixing the glass powder obtained in the step (1), the inorganic pigment and the varnish obtained in the step (2) according to a ratio, and carrying out stirring, three-roller grinding, filtering and defoaming processes to obtain the finished glass slurry.

The melting temperature in the step (1) is 1100-1250 ℃; the melting time in the step (1) is 30-120 min; the rotating speed of the ball mill in the step (1) is 180r/min-250 r/min; the ball milling time in the step (1) is 1h-3 h; the drying temperature of the drying oven in the step (1) is 150-220 ℃; the average grain diameter of the glass powder obtained in the step (1) is 0.5-8 μm; the stirring speed in the step (2) is 300r/min-400 r/min; and (4) grinding the mixture by three rollers in the step (3) until the fineness is less than 10 mu m.

Compared with the prior art, the invention has the following advantages:

1. the glass slurry obtained by the invention has excellent acid resistance and anti-sticking performance when being applied to the front windshield of the automobile, and also has the advantages of appropriate printing property, covering property, expansion coefficient range and the like;

2. zinc silicate crystals can be formed at a certain temperature by adjusting the adding proportion of the raw materials of zinc oxide and silicon dioxide in the glass powder, and the zinc silicate crystals play a role of a crystal nucleating agent in the use process of the glass slurry and precipitate a proper amount of zinc silicate crystals on the surface of the glass, so that the anti-sticking effect is achieved, and the acid resistance can be improved to a certain degree; the softening temperature of the glass can be changed by adjusting the proportion of bismuth oxide in the glass powder, so that the softening temperature is low enough to meet the process requirement; the acid and alkali resistance of the product can be adjusted to a certain degree by adjusting the adding proportion of the raw material titanium dioxide in the glass powder;

3. the invention has simple preparation process, easily purchased equipment and lower cost, and is very suitable for large-scale production.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The varnish used in the following examples 1 to 7 and comparative examples 1 to 3 was prepared by the following method: 30 parts of dispersing agent, 20 parts of wetting agent and 10 parts of flatting agent which are weighed according to the weight part ratio of 3:2:1 are added into 300 parts of aqueous solvent and stirred and dispersed in a dispersion tank for 6 hours to obtain 360 parts of varnish.

Example 1:

preparing glass powder: weighing Bi₂O₃: 56.7 parts; SiO 2₂: 34.0 parts of (A); b is₂O₃: 3.1 parts; ZnO: 1.6 parts; ZrO (ZrO)₂: 0 part of (C); TiO 2₂: 0.3 part; al (Al)₂O₃: 0.2 part; fe₂O₃: 0.2 part; NaF: 0.2 part; MgO: 0 part of (C); CaO: 0.1 part; li₂O: 1.6 parts; k₂O: 0.1 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 75 parts of the glass powder obtained in the step (1), 25 parts of copper-chromium black inorganic pigment and 24 parts of varnish according to the proportion, and carrying out processes of stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 2:

preparing glass powder: weighing Bi₂O₃: 57.0 parts; SiO 2₂：34.2 parts of (1); b is₂O₃: 3.1 parts; ZnO: 1.6 parts; ZrO (ZrO)₂: 0 part of (C); TiO 2₂: 0.3 part; al (Al)₂O₃: 0 part of (C); fe₂O₃: 0 part of (C); NaF: 0.2 part; MgO: 0 part of (C); CaO: 0 part of (C); li₂O: 1.6 parts; k₂O: 0 part of (C); na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 75 parts of the glass powder obtained in the step (1), 25 parts of copper-chromium black inorganic pigment and 24 parts of varnish according to the proportion, and carrying out processes of stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 3:

preparing glass powder: weighing Bi₂O₃: 55.8 parts; SiO 2₂: 30.3 parts; b is₂O₃: 3.0 parts of (B); ZnO: 1.6 parts; ZrO (ZrO)₂: 0.7 part; TiO 2₂: 4.0 parts of (B); al (Al)₂O₃: 0 part of (C); fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 0 part of (C); CaO: 0 part of (C); li₂O: 1.8 parts; k₂O: 0.4 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 70 parts of the glass powder obtained in the step (1), 30 parts of copper-chromium black inorganic pigment and 21 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 4:

preparing glass powder: weighing Bi₂O₃: 55.4 parts; SiO 2₂: 28.5 parts; b is₂O₃: 3.0 parts of (B); ZnO: 1.6 parts; ZrO (ZrO)₂: 0.7 part; TiO 2₂: 4.0 parts of (B); al (Al)₂O₃: 1.0 part; fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 1.0 part; CaO: 0 part of (C); li₂O: 2.1 parts; k₂O: 0.4 part; na (Na)₂O: adding 1.9 parts of glass powder raw materials into a mixer, uniformly mixing, loading the uniformly mixed glass powder raw materials into a crucible, placing the crucible containing the glass powder raw materials into a high-temperature kiln, melting at 1000 ℃ for 2 hours to enable the materials to be melted into uniformly mixed liquid, and quickly pouring the melted mixed liquid into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 65 parts of the glass powder obtained in the step (1), 35 parts of copper-chromium black inorganic pigment and 20 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 5:

preparing glass powder: weighing Bi₂O₃: 51.3 parts; SiO 2₂: 28.9 parts; b is₂O₃: 2.8 parts; ZnO: 6.3 parts of a mixture; ZrO (ZrO)₂: 0.6 part; TiO 2₂: 3.7 parts; al (Al)₂O₃: 1.0 part; fe₂O₃: 0 part of (C); NaF: 0.4 part; MgO: 0.9 part; CaO: 0 part of (C); li₂O: 1.9 parts; k₂O: 0.3 part; na (Na)₂O: 1.8 parts of glass powder raw material is added into a mixer to be mixed evenly, and the mixture is mixedPutting the uniform glass powder raw materials into a crucible, putting the crucible containing the glass powder raw materials into a high-temperature kiln, melting for 2 hours at the temperature of 1000 ℃ to enable the materials to be melted into uniformly mixed liquid, and quickly pouring the melted mixed liquid into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 85 parts of the glass powder obtained in the step (1), 15 parts of copper-chromium black inorganic pigment and 30 parts of varnish according to the proportion, and carrying out processes of stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 6:

preparing glass powder: weighing Bi₂O₃: 51.4 parts; SiO 2₂: 29.2 parts; b is₂O₃: 4.9 parts; ZnO: 1.6 parts; ZrO (ZrO)₂: 0.7 part; TiO 2₂: 5.1 parts; al (Al)₂O₃: 1.1 parts; fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 1.0 part; CaO: 0 part of (C); li₂O: 2.2 parts of; k₂O: 0.4 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 80 parts of the glass powder obtained in the step (1), 20 parts of copper-chromium black inorganic pigment and 25 parts of varnish according to a ratio, and carrying out processes of stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 7:

glass powderThe preparation of (1): weighing Bi₂O₃: 47.8 parts; SiO 2₂: 28.7 parts; b is₂O₃: 2.7 parts; ZnO: 9.1 parts; ZrO (ZrO)₂: 0.6 part; TiO 2₂: 2.6 parts; al (Al)₂O₃: 1.0 part; fe₂O₃: 0 part of (C); NaF: 0.4 part; MgO: 0.9 part; CaO: 2.0 parts of (B); li₂O: 1.9 parts; k₂O: 0.3 part; na (Na)₂O: adding 1.8 parts of glass powder raw materials into a mixer, uniformly mixing, loading the uniformly mixed glass powder raw materials into a crucible, placing the crucible containing the glass powder raw materials into a high-temperature kiln, melting at 1000 ℃ for 2 hours to enable the materials to be melted into uniformly mixed liquid, and quickly pouring the melted mixed liquid into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 70 parts of the glass powder obtained in the step (1), 30 parts of copper-chromium black inorganic pigment and 22 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Example 8:

preparing glass powder: weighing Bi₂O₃: 55.8 parts; SiO 2₂: 30.3 parts; b is₂O₃: 3.0 parts of (B); ZnO: 1.6 parts; ZrO (ZrO)₂: 0.7 part; TiO 2₂: 4.0 parts of (B); al (Al)₂O₃: 0 part of (C); fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 0 part of (C); CaO: 0 part of (C); li₂O: 1.8 parts; k₂O: 0.4 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the glass slag into a drying box, and heating the glass slag at the temperature of 200 DEG CDrying under the condition, and sieving to obtain glass powder with average particle size of 2 μm;

preparing the varnish: adding 2 parts of dispersing agent, 4 parts of wetting agent and 1 part of flatting agent which are weighed according to the weight part ratio of 2:4:1 into 35 parts of aqueous solvent, and stirring and dispersing for 6 hours in a dispersion tank to obtain 42 parts of varnish;

preparation of slurry: and (2) uniformly mixing 70 parts of the glass powder obtained in the step (1), 30 parts of copper-chromium black inorganic pigment and 21 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Comparative example 1:

preparing glass powder: weighing Bi₂O₃: 55.8 parts; SiO 2₂: 30.3 parts; b is₂O₃: 3.0 parts of (B); ZnO: 0 part of (C); ZrO (ZrO)₂: 0.7 part; TiO 2₂: 4.0 parts of (B); al (Al)₂O₃: 0 part of (C); fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 0 part of (C); CaO: 0 part of (C); li₂O: 1.8 parts; k₂O: 0.4 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 70 parts of the glass powder obtained in the step (1), 30 parts of copper-chromium black inorganic pigment and 21 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Comparative example 2:

preparing glass powder: weighing Bi₂O₃: 55.8 parts; SiO 2₂: 0 part of (C); b is₂O₃: 3.0 parts of (B); ZnO: 1.6 parts; ZrO (ZrO)₂: 0.7 part; TiO 2₂: 4.0 parts of (B); al (Al)₂O₃: 0 part of (C); fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 0 part of (C); CaO: 0 part of (C); li₂O: 1.8 parts; k₂O: 0.4 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 70 parts of the glass powder obtained in the step (1), 30 parts of copper-chromium black inorganic pigment and 21 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

Comparative example 3:

preparing glass powder: weighing Bi₂O₃: 55.8 parts; SiO 2₂: 29.5 parts; b is₂O₃: 3.0 parts of (B); zn₂SiO₄: 0.8 part; ZrO (ZrO)₂: 0.7 part; TiO 2₂: 4.0 parts of (B); al (Al)₂O₃: 0 part of (C); fe₂O₃: 0 part of (C); NaF: 0.5 part; MgO: 0 part of (C); CaO: 0 part of (C); li₂O: 1.8 parts; k₂O: 0.4 part; na (Na)₂O: 2.0 parts of glass powder raw materials are added into a mixer to be uniformly mixed, the uniformly mixed glass powder raw materials are put into a crucible, the crucible filled with the glass powder raw materials is placed in a high-temperature kiln to be melted for 2 hours at the temperature of 1000 ℃ so that the materials are melted into uniformly mixed liquid, and the melted mixed liquid is quickly poured into distilled water to form glass slag; drying and crushing the glass slag, putting the crushed glass slag into a ball mill with the rotating speed of 200r/min for ball milling for 2 hours, putting the ball mill into a drying box, drying the ball mill at the temperature of 200 ℃, and sieving the ball mill again to obtain glass powder with the average particle size of 2 microns;

preparation of slurry: and (2) uniformly mixing 70 parts of the glass powder obtained in the step (1), 30 parts of copper-chromium black inorganic pigment and 21 parts of varnish according to the proportion, and carrying out stirring, three-roll grinding, filtering and defoaming to obtain the finished glass slurry with the particle size of 2-8 microns.

The examples and comparative data are shown in table 1 below:

the finished glass slurry samples obtained in examples 1 to 8 and comparative examples 1 to 3 were printed using a 250 mesh screen, the substrate was a windshield glass of an automobile, the printed pattern was 5 × 10cm, and the substrate was sintered at 550 ℃ to 620 ℃ for 5min to obtain a test piece having a sintered film thickness of 10 ± 1 μm, and the test piece was subjected to tests of sintering temperature, acid resistance, expansion coefficient, and scratch resistance, and the test results were as shown in table 2:

table 2:

according to the test results, the sintering temperature of the glass slurry obtained by the raw material proportion and the preparation method provided by the invention is in the range of 555-630 ℃, the glass slurry is more suitable for being used in the glass industry and other fields, the strength and hardness of a sintered part can be improved by increasing the sintering temperature, but the excessively high sintering temperature has large change of the shape and the size of a sintered body and is difficult to control, and the excessively high sintering temperature can also influence the service life of a sintering furnace; the glass slurry obtained by the invention has better expansion coefficient and better scratch resistance and bending strength; and the glass is soaked in 0.1N sulfuric acid aqueous solution for 72 hours, no glass slurry falls off, no penetration occurs, and the glass surface is unchanged; the glass paste has good anti-adhesion performance through the matching use of the zinc oxide and the silicon oxide in the glass powder and the synergistic effect of other raw material components, is relatively suitable for the use of automobile front windshield glass, and the anti-adhesion performance and other performances of the glass paste obtained by replacing the combination of the zinc oxide and the silicon oxide in the glass powder with commercially available zinc silicate are not as good as those of the glass paste obtained by using the combination of the raw materials.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.