阅读说明：本技术 一种高反射率粉末涂料 (High-reflectivity powder coating ) 是由 黎永新 刘益 田晖 于 2020-08-06 设计创作，主要内容包括：本发明公开了一种高反射率粉末涂料,涉及粉末涂料领域。在本申请中,一种高反射率粉末涂料,按照重量份计算,包括以下组分：聚酯树脂36-42份,环氧树脂22-28份,流平剂0.8-1.2份,安息香0.3-0.8份,蜡粉0.3-0.8份,钛白粉25-35份,反射助剂3-8份,硫酸钡20-30份。本申请能够在提高粉末涂料反射率,同时避免涂覆层容易脱落的问题。(The invention discloses a high-reflectivity powder coating, and relates to the field of powder coatings. In the application, the high-reflectivity powder coating comprises the following components in parts by weight: 36-42 parts of polyester resin, 22-28 parts of epoxy resin, 0.8-1.2 parts of flatting agent, 0.3-0.8 part of benzoin, 0.3-0.8 part of wax powder, 25-35 parts of titanium dioxide, 3-8 parts of reflection assistant and 20-30 parts of barium sulfate. This application can avoid the problem that the coating drops easily simultaneously improving powder coating reflectivity.)

1. The high-reflectivity powder coating comprises the following components in parts by weight:

2. the high-reflectivity powder coating according to claim 1, wherein the reflection aid is composed of an organic silicon polymer and an organic ketone polymer.

3. The high reflectance powder coating according to claim 2, wherein the ratio of the silicone polymer to the organic ketone polymer is 1: 1.

4. The high reflectance powder coating according to claim 1, wherein the titanium dioxide is produced by a chlorination process.

5. The high-reflectivity powder coating according to claim 1, wherein the polyester resin is a carboxyl-terminated saturated polyester resin.

6. The high-reflectivity powder coating of claim 1, wherein the viscosity of the epoxy resin is 4000-5000mpa.s/200 degrees.

7. The high-reflectance powder coating according to claim 6, wherein the epoxy resin has an acid value of 30 to 36mPa.s/200 degrees.

8. A lamp cover coated with a high reflectance powder coating according to any one of claims 1 to 7.

9. A lamp comprising a lamp and a lamp housing, wherein the lamp housing is coated with a high reflectance powder coating according to any one of claims 1 to 7.

10. A preparation method of a high-reflectivity powder coating comprises the following steps:

weighing raw materials: weighing corresponding polyester resin, epoxy resin, flatting agent, benzoin, wax powder, titanium dioxide, reflection auxiliary agent and barium sulfate according to the weight parts;

feeding: putting the raw materials into a mixer for mixing;

premixing: uniformly mixing the raw materials up and down by using a Misaike mixer;

melt extrusion mixing: melting and mixing the raw materials and extruding the mixture by an extruder;

tabletting: pressing the extruded bottom material into sheets by a tablet press;

crushing: crushing the flaky backing material by using a crusher;

fine crushing: crushing the bottom material by a crusher;

sieving and packaging: screening by a rotary screen to obtain powder coating, and packaging the coating into boxes.

Technical Field

The invention relates to the field of powder coatings, in particular to a high-reflectivity powder coating.

Background

The powder coating is an environment-friendly coating with zero VOC emission, and is widely applied to coating of various metal surfaces including LED lamp shades. When the existing powder coating is sprayed on the surface of an iron or aluminum LED lampshade, the luminous flux of the LED lamp is low, and the LED lamp with high power is required to reach the required brightness. Under the large background that the country advocates energy conservation, consumption reduction and efficiency improvement vigorously, the powder coating product capable of realizing energy conservation is developed, the powder coating product is helpful for helping downstream customers to save energy, reduce consumption and improve efficiency, and the powder coating responds to the national call for energy conservation and emission reduction by actual actions.

In order to reduce electricity consumption, the coating film is required to have high reflectivity, and can be widely used in lighting lamps. At present, most of domestic and foreign outdoor powder coatings have no high reflectivity or the high reflectivity cannot achieve the effect, so a high-reflectivity powder coating must be developed to solve the problem and meet the market demand.

Disclosure of Invention

The invention aims to provide a high-reflectivity powder coating, which is used for solving the problems that the powder coating in the prior art is low in reflectivity and a coating layer is easy to fall off.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions: the high-reflectivity powder coating comprises the following components in parts by weight:

in the technical scheme, the high-reflectivity powder coating is obtained by spraying the powder coating on an iron or aluminum LED lamp shade under the combined action of the polyester resin, the leveling agent, the reflection assistant and the titanium dioxide, the brightness of the LED lamp can be improved by the coating after the coating is cured into a film compared with the coating formed by using the common powder coating, the luminous flux of the 30W LED lamp can be improved from 2600lm to 3700lm, the LED lamp shade uses the common powder coating as the coating, and a 60W LED lamp needs to be installed.

Further in accordance with an embodiment of the present application, wherein the reflection aid is comprised of an organosilicon polymer and an organoketone polymer.

Further, according to the examples herein, wherein the ratio of the silicone polymer to the organoketone polymer is 1: 1.

Further, according to the embodiment of the application, the titanium dioxide is prepared by a chlorination method.

Further, according to the embodiment of the present application, wherein the polyester resin is a carboxyl-terminated saturated polyester resin.

Further, according to the embodiment of the application, the viscosity of the epoxy resin is 4000-5000mPa.s/200 degrees.

Further, according to the embodiment of the application, the acid value of the epoxy resin is 30-36mPa.s/200 degrees.

In addition, another technical scheme is adopted in the embodiment of the application: a lampshade is made of the high-reflectivity powder coating.

Secondly, the embodiment of the application also adopts another technical scheme that: a lamp comprises a lamp and a lampshade, wherein the lampshade is coated by the high-reflectivity powder coating.

Finally, the embodiment of the application also adopts another technical scheme that: a preparation method of a heat-resistant anti-corrosion wall body plate comprises the following steps of preparing solution, preparing slurry, manufacturing a base plate, cutting, sanding and compounding; wherein the slurry is the heat-resistant anti-corrosion material.

Further, according to the embodiment of the present application, the premixing step is performed by high-speed mixing and side shear crushing simultaneously.

Further, according to the examples of the present application, wherein the screw rotation of the extruder in the melt extrusion mixing step is 50 HZ.

Further, according to the embodiment of the application, the temperature of the melt extrusion mixing is controlled to be 60-70 ℃, and the temperature of the discharge port of the extruder is not higher than 140 ℃.

Further, according to the embodiment of the present application, wherein the particle size after the fine pulverization is controlled by adjusting the host and classifying.

Further, according to the embodiment of the application, the premixing time is 10-20 min.

Compared with the prior art, the method has the following technical effects: according to the embodiment of the application, the high-reflectivity powder coating is obtained under the combined action of the polyester resin, the leveling agent, the reflection auxiliary agent and the titanium dioxide and sprayed on the iron or aluminum LED lamp shade, the brightness of the LED lamp can be improved by the coating after the coating is solidified into a film compared with the coating formed by using the common powder coating, the 30W LED lamp luminous flux can be improved to 3700lm from 2600lm, the common powder coating is used as the coating of the LED lamp shade, a 60W LED lamp needs to be installed, when the high-reflectivity powder coating is used as the coating, the same brightness can be obtained by only installing a 40W LED lamp, the energy is saved by more than 30%, the glossiness of the coating formed after the film of the powder coating is improved by barium sulfate, and the wear resistance of the powder coating after the film is formed is improved by wax powder.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and advantages thereof more apparent, embodiments of the present invention are described in further detail. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships only for the convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.