Production process of optical component with photocatalyst and lighting fixture

Abstract

The present application discloses a production process of an optical component with a photocatalyst and a lighting fixture, which relate to the technical field of optical component production process; the production of the optical component comprises the following steps in sequence: raw material preparation, raw material melting, and product molding; wherein, during the product molding process, the optical component is brought into contact with a photocatalyst solution; the technical solution provided by the present application solves the technical problems of low production efficiency and bulky structure of existing lighting fixtures with sterilization and purification functions.

Description

Technical Field

[0001] The present application relates to the technical field of optical component production technology, and in particular to a production process of an optical component with a photocatalyst and a lighting fixture. Background Art

[0002] Optical parts refer to panels, covers, etc. used in the field of lighting. Traditional lamps have a single function, so the requirement for optical parts is only to be able to transmit light or diffuse light sources. However, with the improvement of people's quality of life, some lamps with sterilization and purification functions have also appeared.

[0003] At present, most of the traditional lamps with purification function still adopt the form of filter nets, which achieve the subsequent sterilization and purification function by spraying photocatalyst material on the filter net. However, the use of this process not only requires the addition of a filter net structure, which makes the overall structure appear to be relatively large, but also the use of the spraying method also leads to low overall production efficiency. Summary of the invention

[0004] The present application provides a living craft and lighting fixture with an optical part having a photocatalyst, and the technical solution provided by the present application solves the technical problems of low production efficiency and bulky structure of existing lamps with sterilization and purification functions.

[0005] In order to solve the above technical problems, the present application provides a production process of an optical component with a photocatalyst and a lighting fixture; in a first aspect, the present application provides a production process of an optical component with a photocatalyst, wherein the production of the optical component comprises the following steps in sequence: raw material preparation, raw material melting, and product molding;

[0006] Wherein, during the product forming process, the optical component is brought into contact with a photocatalyst solution.

[0007] Preferably, the product is formed by roll forming or extrusion forming.

[0008] Preferably, the extrusion molding further includes a cooling process, and the optical component is cooled by a coolant after extrusion to form a finished product;

[0009] The photocatalyst solution is a cooling liquid.

[0010] Preferably, during the extrusion molding process, the extrusion speed of the optical component is 10-15 m / min, and the temperature of the coolant is 5-15°C.

[0011] Preferably, the roll forming comprises the following steps:

[0012] A1. The molten raw material is shaped by a mold and extruded into a plate;

[0013] A2. The extruded plate-shaped optical component is rolled by a three-roll hot pressing roller machine;

[0014] A photocatalyst solution is attached to the rolling wheels on the three-roller hot-pressing roller machine.

[0015] Preferably, the rolling process further comprises the following steps:

[0016] The photocatalyst solution is placed in a container and spread through a sponge;

[0017] The sponge is installed on one side of the rolling wheel on the three-roller hot-pressing roller machine and is attached to the rolling wheel.

[0018] Preferably, in the rolling process, the rolling pressure of the rolling wheel is 5-8.6 MPa; the transmission speed of the optical component is 6-7.1 m / min.

[0019] Preferably, the photocatalyst solution is composed of a photocatalyst stock solution and water, and the ratio of the photocatalyst stock solution to water is 1:(95-120);

[0020] The photocatalyst stock solution has the following components in parts by weight:

[0021] 15-35 parts of nano titanium dioxide, 1-5 parts of nano silver, 10-14 parts of nano silicon dioxide, 2-6 parts of dispersant, 40-60 parts of anhydrous ethanol, and 10-15 parts of deionized water.

[0022] In a second aspect, the present application provides a lighting fixture, wherein the optical component of the lighting fixture is prepared by any of the above-mentioned production processes.

[0023] Compared with the prior art, the beneficial effects of this application are:

[0024] (1) The present application attaches the photocatalyst to an optical component, which may be an optical plate such as a diffuser plate, a prism plate, or an optical cover such as a lampshade, thereby effectively solving the problem of the traditional lighting fixtures with sterilization and purification functions being complex in structure and bulky in size;

[0025] (2) The photocatalyst adhesion process is innovatively placed in the product molding step, wherein the rolling process is performed after the product is formed into a film, and the adhesion effect of the photocatalyst is further enhanced by the temperature and pressure of the rolling wheel after the optical rod is melted and fixed. In the extrusion molding process, the photocatalyst adhesion process is placed in the cooling step, forming a clever combination of the cooling of the optical component and the adhesion of the photocatalyst. Regardless of whether the rolling process or the extrusion process is used, the photocatalyst adhesion process is implemented in the product molding of the optical component, which greatly simplifies the production process, improves production efficiency, reduces production costs, and has great commercial application value. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with embodiments. Several embodiments of the present invention are given below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive:

[0027] At present, most of the traditional lamps with purification functions still adopt the form of filter nets, which achieve the subsequent sterilization and purification functions by spraying photocatalyst materials on the filter nets. However, the use of this process not only requires the addition of a filter net structure, resulting in a relatively large overall structure, but also the use of the spraying method also leads to low overall production efficiency;

[0028] In order to solve the above technical problems, this embodiment provides a production process of an optical component rich in photocatalyst, which comprises the following steps in sequence: raw material preparation, raw material melting, and product molding;

[0029] Wherein, during the product forming process, the optical component is brought into contact with a photocatalyst solution;

[0030] Specifically, the product is formed by roll forming or extrusion forming;

[0031] In some embodiments, product molding may also be injection molding.

[0032] Furthermore, in the extrusion molding, it also includes a cooling process, and the optical component is extruded and then cooled by a coolant to form a finished product; wherein the photocatalyst solution is the coolant.

[0033] Furthermore, during the extrusion molding process, the extrusion speed of the optical component is 10-15 m / min, and the temperature of the coolant is 5-15°C.

[0034] In roll forming, roll forming includes the following steps:

[0035] A1. The molten raw material is shaped by a mold and extruded into a plate;

[0036] A2. The extruded plate-shaped optical component is rolled by a three-roll hot pressing roller machine;

[0037] Among them, a photocatalyst solution is attached to the rolling wheels on the three-roller hot-pressing roller machine.

[0038] Further, the roll forming further comprises the following steps:

[0039] The photocatalyst solution is placed in a container and diffused through a sponge; the sponge is installed on one side of a rolling wheel on a three-roller hot-pressing roller machine and attached to the rolling wheel;

[0040] In the above solution, a grid is provided at the liquid outlet of the container to effectively control the liquid outlet speed of the photocatalyst solution in the container, so that the sponge can be continuously filled with the photocatalyst solution.

[0041] Furthermore, in the rolling process, the rolling pressure of the rolling wheel is 5-8.6 MPa; the transmission speed of the optical component is 6-7.1 m / min.

[0042] Specifically, the photocatalyst solution is composed of a photocatalyst stock solution and water, and the ratio of the photocatalyst stock solution to water is 1: (95-120);

[0043] The photocatalyst stock solution has the following components in parts by weight:

[0044] 15-35 parts of nano titanium dioxide, 1-5 parts of nano silver, 10-14 parts of nano silicon dioxide, 2-6 parts of dispersant, 40-60 parts of anhydrous ethanol, and 10-15 parts of deionized water.

[0045] Among them, the present application also conducted further experiments in other links of product production. For example, in the raw material preparation link, the present application added part of the photocatalyst raw materials into the raw materials for producing optical parts. The optical parts products formed subsequently were prone to yellowing and had a serious odor. However, by adopting the production process provided by the present application, the optical parts were attached with photocatalysts in the product molding step. While improving production efficiency, it also ensured that the products had good output and excellent sterilization and purification functions. Therefore, it further demonstrated the pioneering nature of the present application's choice of adding photocatalyst technology in product molding.

[0046] This embodiment also provides a lighting fixture, which is an optical component manufactured using the above-mentioned production process.

[0047] In order to find the most suitable production process parameters, the following comparative experiments were conducted on the photocatalyst stock solution ratio, roll forming process and extrusion forming process;

[0048] Example 1

[0049] New material particles and auxiliary materials are added into the hopper. The plastic is transported forward along the spiral groove under the action of the rotating screw. The plastic in the barrel gradually melts into a viscous flow state under the action of barrel heat transfer and shear and friction heat between the plastic and the barrel, and between the plastic and the screw. Then, under the action of the extrusion system, the plastic melt is shaped through the diffusion plate die and then passes through a three-roll hot pressing roller machine, where the rolling pressure is 7.0 MPa and the material transmission speed is 6.8 m / min.

[0050] Above the rolling wheel, there is a prepared photocatalyst liquid container (the ratio of photocatalyst stock solution to water is 1:100, and there is a sponge under the container. The container has mesh holes, and the prepared photocatalyst is immersed in the sponge through the mesh holes. The sponge contacts the roller. When the three-roller hot pressing roller machine rotates, the roller surface is naturally coated with a photocatalyst coating. When the diffusion plate passes through the three-roller hot pressing roller machine and the texture is rolled, the photocatalyst is rolled and attached to the diffusion plate, thereby realizing the integrated molding of the diffusion plate surface, optical texture and photocatalyst.

[0051] The photocatalyst stock solution is composed of the following components by weight: 25 parts of nano titanium dioxide, 3 parts of nano silver, 12 parts of nano silicon dioxide, 4 parts of dispersant, 50 parts of anhydrous ethanol, and 12 parts of deionized water;

[0052] Further, referring to the production method of Example 1, a comparative experiment was further performed, as shown in Table 1:

[0053] Table 1

[0054] Example Rolling pressure (mpa) Transmission speed (m / min) 1 7.0 6.8 2 5 6.8 3 8.6 6.8 4 7.0 6 5 7.0 7.1

[0055] Further, referring to the production method of Example 1, a comparative experiment was further conducted, as shown in Table 2:

[0056] Table 2

[0057]

[0058] Example 8

[0059] Granular or powdered thermoplastic plastic is added into the hopper, and the plastic is transported forward along the spiral groove under the action of the rotating screw. The plastic in the barrel gradually melts into a viscous flow state under the action of barrel heat transfer and shear and friction heat between the plastic and the barrel, and between the plastic and the screw. Then, under the action of the extrusion system, the extrusion speed is controlled at 12m / min, and the plastic melt is shaped by the lampshade die, and then passes through the cooling device system, wherein the cooling device system is loaded with a photocatalyst solution, wherein the temperature of the coolant is 8°C. The specific ratio can be referred to Example 1, and finally, the corresponding length is cut according to the required size specifications.

[0060] Further, referring to the production method of Example 8, a comparative experiment was further conducted, as shown in Table 3:

[0061] Table 3

[0062] Example Coolant temperature (℃) Extrusion speed (m / min) 8 8 12 9 15 12 10 5 12 11 8 10 12 8 15

[0063] Example 13

[0064] Referring to the production method in Implementation 8, further experiments were conducted on the ratio of photocatalyst stock solution to water, wherein the ratio of photocatalyst stock solution to water was 1:135.

[0065] Embodiment 14

[0066] Referring to the production method in Implementation 8, further experiments were conducted on the ratio of photocatalyst stock solution to water, wherein the ratio of photocatalyst stock solution to water was 1:95.

[0067] The optical components produced were then tested for appearance and sterilization ability. The optical components produced in this application were assembled on lamps and lanterns. 3 The lighting in the experimental cabin was turned on for 1h and 2h, and the virus content in the air in the experimental cabin was tested before and after the experiment.

[0068] The experimental viruses were: influenza A virus H1N1 (A / PR / / 8 / 34) (ATCC VR-1469);

[0069] Host cells are: MDCK cells;

[0070] The detection method refers to T / SAEPI 005-2020;

[0071] The final results are shown in Table 4 and Table 5:

[0072] Table 4

[0073]

[0074]

[0075] Please refer to Table 5 for the specific appearance test in each embodiment: the test process is to place the finished product in a 40°C environment for 6 hours, and the specific results are shown in Table 5

[0076] Table 5

[0077]

[0078] The color depth levels are yellowish > slightly yellow > normal.

[0079] Please refer to Table 1, Table 4 and Table 5, and compare Examples 1-3. When the rolling pressure is too small or too large, it will affect the adhesion of the photocatalyst, and ultimately lead to uneven adhesion of the photocatalyst, affecting the final bactericidal performance; further refer to Examples 1, 4, and 5, among which Example 4 has excellent bactericidal performance, but the too slow transmission speed not only affects the production efficiency, but also in the subsequent appearance test, the product shows a slightly yellow discoloration phenomenon; but overall observations show that Examples 1-5 can achieve relatively high efficiency sterilization.

[0080] Please refer to Table 2, Table 4 and Table 5. Compared with Examples 1, 6 and 7, when the proportion of nanosilver in the photocatalyst stock solution is increased, the product after production tends to turn yellow; and when the proportion is too low, the sterilization efficiency is affected;

[0081] Please refer to Table 3, Table 4 and Table 5. Comparative Examples 8-10 show that when the coolant temperature is too high or too low, it will affect the final sterilization performance, and when the temperature is too high, it will cause the product to turn yellow to a certain extent. Comparative Examples 8, 11, and 12 show that when the extrusion speed is too low, it not only affects the final production efficiency, but also the final product shows a yellowish color change. When the extrusion speed is too high, the photocatalyst tends to adhere unevenly, affecting the sterilization performance.

[0082] Comparing Examples 1, 13 and 14, when the proportion of the photocatalyst stock solution is higher, the bactericidal performance is excellent, but the product eventually shows a slightly yellow discoloration phenomenon and the cost is higher; and when the proportion of the photocatalyst stock solution is lower, the bactericidal performance is affected.

[0083] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0084] The above description is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application are within the scope of the technical solution of the present application.

Claims

1. A process for producing an optical component with a photocatalyst, characterized in that: The production of the optical component comprises the following steps in sequence: raw material preparation, raw material melting, and product molding; Wherein, during the product forming process, the optical component is brought into contact with a photocatalyst solution; The product is formed by roll forming, and the roll forming comprises the following steps: A1. The molten raw material is shaped by a mold and extruded into a plate; A2. The extruded plate-shaped optical component is rolled by a three-roll hot pressing roller machine; A photocatalyst solution is attached to the rolling wheel of the three-roller hot-pressing roller machine; wherein the photocatalyst solution is placed in a container and diffused through a sponge; the sponge is installed on one side of the rolling wheel of the three-roller hot-pressing roller machine and attached to the rolling wheel; In the rolling process, the rolling pressure of the rolling wheel is 5-8.6 MPa; the transmission speed of the optical component is 6-7.1 m / min; The photocatalyst solution is composed of a photocatalyst stock solution and water, and the ratio of the photocatalyst stock solution to water is 1: (95-135); The photocatalyst stock solution is composed of the following components in parts by weight: 15-35 parts of nano titanium dioxide, 1-5 parts of nano silver, 10-14 parts of nano silicon dioxide, 2-6 parts of dispersant, 40-60 parts of anhydrous ethanol, and 10-15 parts of deionized water.

2. A lighting fixture, characterized in that: The lighting fixture comprises an optical component manufactured by the production process described in claim 1.

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