CN105130199A - Glass micro-bead used in light-reflective film on road traffic sign and preparation method thereof - Google Patents

Abstract

The invention discloses a glass micro-bead used in a light-reflective film on a road traffic sign and a preparation method of the glass micro-bead. The glass micro-bead is prepared from following raw materials, by weight, 41-57 parts of quartz sand, 32-46 parts of yellow sand, 24-38 parts of aragonite, 15-25 parts of illite, 3-6 parts of nickel oxide, 6-12 parts of potassium fluosilicate, 5-10 parts of barium metaphosphate, 25-40 parts of pebble chip, 18-33 parts of pectolite, 7-11 parts of bismuth subnitrate, 5-9 parts of bone carbon powder, 10-15 parts of activated clay, 3-5 parts of gallium oxide and 8-14 parts of an additive. In the invention, the glass micro-bead is prepared from the quartz sand, the yellow sand, the aragonite, the illite, the barium metaphosphate, the pebble chip, the pectolite, the bismuth subnitrate, the activated clay, the gallium oxide and the like, so that the glass micro-bead is high in refractive index, has a good light-reflective effect, is excellent in weather resistance, heat resistance, light resistance, anti-oxidizing property and durability, can satisfy the use requirement of the light-reflective film on the road traffic sign completely, and is safe and reliable.

Description

A kind of glass microballon for road and traffic sign plates tapetum lucidum and preparation method thereof

Technical field

The present invention relates to a kind of glass microballon for road and traffic sign plates tapetum lucidum and preparation method thereof, belong to glass microballon and manufacture field.

Background technology

Glass microballon refers to the solid or hollow glass bead of diameter several microns to hundreds of micron, point colourless and coloured two classes.More than diameter 0.8mm is called thin pearl; Below diameter 0.8mm is called microballon.Glass microballon is a kind of Novel silicate material, because of have transparent, specific refractory power is adjustable, directed retroreflecting, smooth surface, good fluidity, electrical isolation, stable chemical performance, heat-resisting and physical strength high, and be widely used in tapetum lucidum.

Tapetum lucidum is the glass microballon retroreflecting principle using high refractive index, distant place directing light line reflection can be postbacked light place by it, no matter by day or all have good reflex reflection optical property night, especially evening, higher high-visibility can be formed, thus be applied to guide plate, the direction board of various road and rail, airport, mine safety board, scenery, place name sign, car plate, billboard etc.The glass microballon product quality and performances that manufacturer of current China produces are unstable, and specific refractory power is low, and reflecting effect is poor, also has a certain distance compared with external glass microballon product.

Summary of the invention

Of the present inventionly be for the deficiencies in the prior art, provide glass microballon that a kind of high refractive index, reflecting effect are good and preparation method thereof, for road and traffic sign plates tapetum lucidum.

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

For a glass microballon for road and traffic sign plates tapetum lucidum, be made up of the raw material of following weight part: quartz sand 41-57, yellow ground 32-46, aragonite 24-38, illite 15-25, nickel oxide 3-6, potassium silicofluoride 6-12, barium metaphosphate 5-10, cobble bits 25-40, stellite 18-33, Vikaline 7-11, bone carbon dust 5-9, atlapulgite 10-15, gallium oxide 3-5, additive 8-14;

Described additive is mixed by the raw material of following weight part: pearl white 5-10, Cerium monophosphate 7-13, cobaltous chromate 4-8, barium peroxide 3-5, sodium selenate 4.5-6.5, tin indium oxide 2-4, yttrium oxalate 4-6, molybdenum disilicide 8-12, strontium titanate 5-7.

For a preparation method for the glass microballon of road and traffic sign plates tapetum lucidum, comprise the following steps:

(1) get aragonite, illite, cobble bits, stellite mixes, 620-780 DEG C of calcining 1-2h, air cooling is to room temperature, pulverize, cross 50-100 mesh sieve, add the water of 8-10 times amount, 3000-4000r/min wet ball grinding 20-30min, spraying drying powder-forming is last to be mixed with barium metaphosphate, potassium silicofluoride, atlapulgite, Vikaline, and 1500-2500r/min high speed dispersion 15-20min is stand-by;

(2) quartz sand, yellow ground are mixed, heating is melted, and adds the material that step (1) is obtained when it becomes fused solution, stirs 3-6min, then adds remaining raw material, continue to be heated to whole material and melt completely, and insulation leaves standstill 10-15min, blanking;

(3) fused solution gone out under step (2) is put into clear water and carry out shrend, obtain beaded glass material, dry, pulverize, cross 80-120 mesh sieve, add 6-9 water doubly, 2000-3000r/min wet ball grinding 35-45min, is spray dried to powder;

(4) glass powder that step (3) spraying dry obtains is delivered to the bocca place of glass microballon roasting kiln, meet with natural gas inflammable gas, lighting gas makes bocca place flame temperature be increased to more than 1200 DEG C, and under the impact of air-flow, make glass powder dispersed and fusing in one-tenth pearl flame, because capillary effect forms ball, fall into clear water and be cooled to glass microballon, then according to the purposes of glass microballon, filter out the glass microballon of different meshes, be finished product.

Beneficial effect of the present invention:

The glass microballon that the present invention adopts the raw materials such as quartz sand, yellow ground, aragonite, illite, barium metaphosphate, cobble bits, stellite, Vikaline atlapulgite, gallium oxide to obtain not only has higher specific refractory power, reflecting effect is good, and there is excellent weathering resistance, thermotolerance, photostabilization, oxidation-resistance and weather resistance, meet the service requirements of road and traffic sign plates tapetum lucidum completely, safe and reliable.

Embodiment

For a glass microballon for road and traffic sign plates tapetum lucidum, be made up of the raw material of following weight (kg): quartz sand 46, yellow ground 39, aragonite 32, illite 20, nickel oxide 4.5, potassium silicofluoride 8, barium metaphosphate 7, cobble bits 37, stellite 25, Vikaline 9, bone carbon dust 7, atlapulgite 12, gallium oxide 4, additive 12;

Described additive is mixed by the raw material of following weight (kg): pearl white 7, Cerium monophosphate 9, cobaltous chromate 6, barium peroxide 4, sodium selenate 5.5, tin indium oxide 3, yttrium oxalate 5, molybdenum disilicide 10, strontium titanate 6.

For a preparation method for the glass microballon of road and traffic sign plates tapetum lucidum, comprise the following steps:

(1) get aragonite, illite, cobble bits, stellite mixes, 620-780 DEG C of calcining 1-2h, air cooling is to room temperature, pulverize, cross 50-100 mesh sieve, add the water of 8-10 times amount, 3000-4000r/min wet ball grinding 20-30min, spraying drying powder-forming is last to be mixed with barium metaphosphate, potassium silicofluoride, atlapulgite, Vikaline, and 1500-2500r/min high speed dispersion 15-20min is stand-by;

(2) quartz sand, yellow ground are mixed, heating is melted, and adds the material that step (1) is obtained when it becomes fused solution, stirs 3-6min, then adds remaining raw material, continue to be heated to whole material and melt completely, and insulation leaves standstill 10-15min, blanking;

(3) fused solution gone out under step (2) is put into clear water and carry out shrend, obtain beaded glass material, dry, pulverize, cross 80-120 mesh sieve, add 6-9 water doubly, 2000-3000r/min wet ball grinding 35-45min, is spray dried to powder;

(4) glass powder that step (3) spraying dry obtains is delivered to the bocca place of glass microballon roasting kiln, meet with natural gas inflammable gas, lighting gas makes bocca place flame temperature be increased to more than 1200 DEG C, and under the impact of air-flow, make glass powder dispersed and fusing in one-tenth pearl flame, because capillary effect forms ball, fall into clear water and be cooled to glass microballon, then according to the purposes of glass microballon, filter out the glass microballon of different meshes, be finished product.

The Refractive Index of Glass Microspheres adopting above-described embodiment to prepare is 2.01, and index ellipsoid is 2.3%, and ultimate compression strength is 11.2MPa.

Claims (2)

1. the glass microballon for road and traffic sign plates tapetum lucidum, it is characterized in that, be made up of the raw material of following weight part: quartz sand 41-57, yellow ground 32-46, aragonite 24-38, illite 15-25, nickel oxide 3-6, potassium silicofluoride 6-12, barium metaphosphate 5-10, cobble bits 25-40, stellite 18-33, Vikaline 7-11, bone carbon dust 5-9, atlapulgite 10-15, gallium oxide 3-5, additive 8-14;

Described additive is mixed by the raw material of following weight part: pearl white 5-10, Cerium monophosphate 7-13, cobaltous chromate 4-8, barium peroxide 3-5, sodium selenate 4.5-6.5, tin indium oxide 2-4, yttrium oxalate 4-6, molybdenum disilicide 8-12, strontium titanate 5-7.

2., as claimed in claim 1 for a preparation method for the glass microballon of road and traffic sign plates tapetum lucidum, it is characterized in that comprising the following steps:

(1) get aragonite, illite, cobble bits, stellite mixes, 620-780 DEG C of calcining 1-2h, air cooling is to room temperature, pulverize, cross 50-100 mesh sieve, add the water of 8-10 times amount, 3000-4000r/min wet ball grinding 20-30min, spraying drying powder-forming is last to be mixed with barium metaphosphate, potassium silicofluoride, atlapulgite, Vikaline, and 1500-2500r/min high speed dispersion 15-20min is stand-by;

(2) quartz sand, yellow ground are mixed, heating is melted, and adds the material that step (1) is obtained when it becomes fused solution, stirs 3-6min, then adds remaining raw material, continue to be heated to whole material and melt completely, and insulation leaves standstill 10-15min, blanking;

(3) fused solution gone out under step (2) is put into clear water and carry out shrend, obtain beaded glass material, dry, pulverize, cross 80-120 mesh sieve, add 6-9 water doubly, 2000-3000r/min wet ball grinding 35-45min, is spray dried to powder;

(4) glass powder that step (3) spraying dry obtains is delivered to the bocca place of glass microballon roasting kiln, meet with natural gas inflammable gas, lighting gas makes bocca place flame temperature be increased to more than 1200 DEG C, and under the impact of air-flow, make glass powder dispersed and fusing in one-tenth pearl flame, because capillary effect forms ball, fall into clear water and be cooled to glass microballon, then according to the purposes of glass microballon, filter out the glass microballon of different meshes, be finished product.