Road marking reflective bead

A technology of road markings and reflective beads, applied in the direction of reflection/signal paint, coating, etc., can solve the problems of poor retro-reflection effect, achieve the effects of reducing incidence, enhancing visibility, and increasing refractive index

Inactive Publication Date: 2014-09-17
湖州远光路标涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] figure 2 Shown is the reflective phenomenon of the poorly rounded reflective original in the marking line, which is determined by figure 2 It can be seen that the retro-reflective effect of light on poorly rounded reflective elements is poor, and a large part of the light cannot return to the driver's sight due to various reasons, but escapes away from the driver's direction and is lost.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] The reflective beads for road markings include the following components: titanium dioxide, calcium oxide, zirconia, boron oxide, aluminum oxide and inorganic salt additives; the preparation process of the reflective beads for road markings includes the following steps: Step 1, Mix titanium dioxide, calcium oxide, zirconia, boron oxide, aluminum oxide and inorganic salt additives, grind and disperse at a high speed with a nano-sand mill to obtain an inorganic slurry; step 2, the inorganic slurry is granulated by spray drying, and the dried The particle size of the particles reaches 200-250 mesh; step 3, the dried particles are sintered into particles in a high-temperature oxygen-enriched environment; step 4, the particles are cooled, collected, and sieved to obtain reflective beads for road markings. In terms of mass percentage, the content of titanium dioxide is 60%-85%, the content of calcium oxide is 1.5%-15%, the content of zirconia is 5%-10%, the content of boron oxi...

Embodiment 2

[0021] The difference from Example 1 is: by mass percentage, the content of titanium dioxide is 55% to 80%, the content of calcium oxide is 2% to 10%, the content of zirconia is 6% to 12%, and the content of boron oxide is 5%. ~16%, the content of aluminum oxide is 2%~12%.

Embodiment 3

[0023] All-weather high refraction reflective microcrystalline ceramic beads, including the inner core and reflective beads for road marking, the reflective beads for road marking are as described in embodiment one or embodiment two; the all-weather high The preparation process of the refraction reflective microcrystalline ceramic beads includes the following steps: soak the inner core in the binder slurry, pick it up and put it into a container of excess road marking reflective beads, stir it, pack it into a sintering furnace, and put the inner core and road markings into a container. The reflective beads for thread are sintered into finished products in a sintering furnace at 800°C±20°C.

[0024] The inner core is a glass sphere. The glass ball can be existing commercially available road marking reflective glass beads; it can also be the ore glass beads as described in the application number 201010213905.9, named as a kind of ore glass beads for road marking, etc.

[0025] ...

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Abstract

The invention provides a road marking reflective bead comprising titanium dioxide, calcium oxide, zirconium oxide, boron oxide, aluminum oxide and an inorganic salt additive, a preparation process of the road marking reflective bead comprises the following steps: step 1, using a sand mill for grinding and high speed dispersion of the titanium dioxide, calcium oxide, zirconium oxide, boron oxide, aluminum oxide and inorganic salt additive to obtain inorganic slurry; step 2, granulating by spray drying of the inorganic slurry; step 3, sintering the dried particles in the high-temperature oxygen-enriched environment into fine grains; step 4, cooling, collecting and screening the fine grains to obtain the road marking reflective bead. By improvement of product components, the refraction rate of crystallite ceramic beads can reach above 2.2, and the weather-proof, wear-resisting, water-tolerant and alkali resistant functions of the product and coating adhesion can be improved, so that the product has high hardness and high wear resistance, the all-weather reflective effect of the product can be ensured, and the consistency of the service life of the ceramic beads and a marking can be ensured.

Description

technical field [0001] The invention relates to a reflective paint for road markings, in particular to a reflective bead for road markings. Background technique [0002] According to relevant statistical data, road traffic accidents account for 61% of all kinds of casualties, and night traffic accidents account for 73% of all traffic accidents, among which the ratio of driving accidents in rainy nights is the largest. The main reason for frequent traffic accidents on rainy nights is that the road markings lose their reflective performance in rainy nights, and the markings are not clear and lose their guiding effect, making it easy for drivers to deviate from the direction or drive in parallel. At the same time, it is also very easy to mislead the sense of direction because the guide arrows cannot be seen clearly. In addition, the driver's vision is blurred and sleepy, and he is prone to fatigue driving and so on. For this reason, how to enhance the reflective performance o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/33C09D7/12
Inventor 应华强
Owner 湖州远光路标涂料有限公司
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