CN104944779A - High weather-resistant glass bead for reflective film, and preparation method of glass bead - Google Patents

Abstract

The invention discloses a high weather-resistant glass bead for a reflective film, and a preparation method of the glass bead. The glass bead is prepared from the following raw materials in parts by weight: 28-46 parts of wollastonite, 19-33 parts of calcium borate, 15-25 parts of monazite, 12-18 parts of silicon phosphate, 10-15 parts of water-quenched slag, 20-30 parts of cullet, 14-21 parts of lithopone, 10-15 parts of borax, 5-10 parts of potassium nitrate, 4-8 parts of aluminum phosphite, 3-6 parts of caustic soda flake and 5-7 parts of additive. According to the glass bead, the raw materials such as calcium borate, the lithopone, the water-quenched slag and aluminum phosphite are added based on the wollastonite, the cullet and the monazite, so that compared with the traditional glass bead, the glass bead has more excellent weather resistance and a higher refractive index, and meets a requirement of an outdoor reflective film.

Description

A kind of tapetum lucidum high durable glass microballon and preparation method thereof

Technical field

The present invention relates to a kind of tapetum lucidum high durable glass microballon and preparation method thereof, belong to glass microballon and manufacture field.

Background technology

A kind of of many uses, a kind of type material that performance is special that glass microballon is that development in recent years is got up, be the small hollow glass spheroid of a kind of size, belong to ceramic.Glass microballon is the main raw material manufacturing light reflecting material, can be widely used in the field light reflecting materials such as highway, railway, airport, harbour, sea transport, mine, tunnel, fire-fighting, urban construction.Along with China is to the increasing of infrastructure construction dynamics of investment, the demand of glass microballon is increasing, simultaneously also more and more higher to the performance requriements of glass microballon.Current China only has minority producer to grasp the production technology of high refractive index glass micro pearl, and its product performance are very unstable, there is the shortcoming of weathering resistance difference, cannot meet market demands.

Summary of the invention

Of the present inventionly be for the deficiencies in the prior art, a kind of tapetum lucidum high durable glass microballon and preparation method thereof is provided.

For achieving the above object, the technical solution used in the present invention is as follows:

A kind of tapetum lucidum high durable glass microballon, is made up of the raw material of following weight part: wollastonite 28-46, lime borate 19-33, monazite 15-25, silicon phosphate 12-18, Water Quenching Slag 10-15, glass cullet 20-30, zinc sulfide white 14-21, borax 10-15, saltpetre 5-10, aluminum phosphite 4-8, sheet alkali 3-6, additive 5-7;

Described additive is mixed by the raw material of following weight part: dysprosium oxide 2-3, nanometer palygorskite 4-6, ceric hydroxide 3-4, antimonous acid anhydride 5-8, barium molybdate 6-12, sodium wolframate 4-7, Bismuth Subcarbonate 8-14, titanium sponge 3-5, antimony sulfide 2-4, zinc selenide 2-3.

A preparation method for tapetum lucidum high durable glass microballon, comprises the following steps:

(1) wollastonite, monazite are mixed, be positioned in microwave baking furnace, first at the N of 2-3MPa ₂under atmosphere, when microwave heating is to 430-470 DEG C, insulation 16-22min, air cooling to normal temperature, then at the H of 1-2MPa ₂under atmosphere, when microwave heating is to 460-520 DEG C, insulation 15-20min, take out, air cooling, to normal temperature, is pulverized, cross 100-150 mesh sieve, add appropriate water stirring and make the suspension that concentration is 40-50%, 1500-2000r/min speed lapping 15-20min, is delivered to after grinding in spray-drying tower and is spray dried to powder at 130-170 DEG C of temperature;

(2) powder that above-mentioned spraying dry obtains is mixed with Water Quenching Slag, glass cullet, lime borate, zinc sulfide white, silicon phosphate, borax, be added in electrolytic furnace, be heated to material and all melt, add remaining raw material again, stir 2-4min, then leave standstill 8-12min, blanking;

(3) by under the fused solution that goes out put into clear water and carry out shrend, by de-for moisture content dry after, put into dryer and dry, then by dry the glass particle material that obtains by fragmentation, screening, balling-up, again sieve, wash, dry after, formation glass microballon product.

Beneficial effect of the present invention:

Glass microballon of the present invention is on the basis of wollastonite, glass cullet, monazite, add lime borate, zinc sulfide white, the raw material such as Water Quenching Slag, aluminum phosphite, it is made to have more excellent weather resistance compared with traditional glass microballon, there is higher specific refractory power simultaneously, adapt to the requirement of outdoor tapetum lucidum.

Embodiment

A kind of tapetum lucidum high durable glass microballon, is made up of the raw material of following weight (kg): wollastonite 40, lime borate 26, monazite 20, silicon phosphate 16, Water Quenching Slag 12, glass cullet 25, zinc sulfide white 17, borax 13, saltpetre 8, aluminum phosphite 6, sheet alkali 4.5, additive 6;

Described additive is mixed by the raw material of following weight (kg): dysprosium oxide 3, nanometer palygorskite 6, ceric hydroxide 4, antimonous acid anhydride 8, barium molybdate 12, sodium wolframate 7, Bismuth Subcarbonate 14, titanium sponge 5, antimony sulfide 4, zinc selenide 3.

A preparation method for tapetum lucidum high durable glass microballon, comprises the following steps:

(1) wollastonite, monazite are mixed, be positioned in microwave baking furnace, first at the N of 2-3MPa ₂under atmosphere, when microwave heating is to 430-470 DEG C, insulation 16-22min, air cooling to normal temperature, then at the H of 1-2MPa ₂under atmosphere, when microwave heating is to 460-520 DEG C, insulation 15-20min, take out, air cooling, to normal temperature, is pulverized, cross 100-150 mesh sieve, add appropriate water stirring and make the suspension that concentration is 40-50%, 1500-2000r/min speed lapping 15-20min, is delivered to after grinding in spray-drying tower and is spray dried to powder at 130-170 DEG C of temperature;

(2) powder that above-mentioned spraying dry obtains is mixed with Water Quenching Slag, glass cullet, lime borate, zinc sulfide white, silicon phosphate, borax, be added in electrolytic furnace, be heated to material and all melt, add remaining raw material again, stir 2-4min, then leave standstill 8-12min, blanking;

(3) by under the fused solution that goes out put into clear water and carry out shrend, by de-for moisture content dry after, put into dryer and dry, then by dry the glass particle material that obtains by fragmentation, screening, balling-up, again sieve, wash, dry after, formation glass microballon product.

The Refractive Index of Glass Microspheres adopting above-described embodiment to prepare is 1.94, and roundness is 98%.

Claims (2)

1. a tapetum lucidum high durable glass microballon, it is characterized in that, be made up of the raw material of following weight part: wollastonite 28-46, lime borate 19-33, monazite 15-25, silicon phosphate 12-18, Water Quenching Slag 10-15, glass cullet 20-30, zinc sulfide white 14-21, borax 10-15, saltpetre 5-10, aluminum phosphite 4-8, sheet alkali 3-6, additive 5-7;

Described additive is mixed by the raw material of following weight part: dysprosium oxide 2-3, nanometer palygorskite 4-6, ceric hydroxide 3-4, antimonous acid anhydride 5-8, barium molybdate 6-12, sodium wolframate 4-7, Bismuth Subcarbonate 8-14, titanium sponge 3-5, antimony sulfide 2-4, zinc selenide 2-3.

2. a preparation method for tapetum lucidum high durable glass microballon as claimed in claim 1, is characterized in that comprising the following steps:

(1) wollastonite, monazite are mixed, be positioned in microwave baking furnace, first at the N of 2-3MPa ₂under atmosphere, when microwave heating is to 430-470 DEG C, insulation 16-22min, air cooling to normal temperature, then at the H of 1-2MPa ₂under atmosphere, when microwave heating is to 460-520 DEG C, insulation 15-20min, take out, air cooling, to normal temperature, is pulverized, cross 100-150 mesh sieve, add appropriate water stirring and make the suspension that concentration is 40-50%, 1500-2000r/min speed lapping 15-20min, is delivered to after grinding in spray-drying tower and is spray dried to powder at 130-170 DEG C of temperature;

(2) powder that above-mentioned spraying dry obtains is mixed with Water Quenching Slag, glass cullet, lime borate, zinc sulfide white, silicon phosphate, borax, be added in electrolytic furnace, be heated to material and all melt, add remaining raw material again, stir 2-4min, then leave standstill 8-12min, blanking;

(3) by under the fused solution that goes out put into clear water and carry out shrend, by de-for moisture content dry after, put into dryer and dry, then by dry the glass particle material that obtains by fragmentation, screening, balling-up, again sieve, wash, dry after, formation glass microballon product.