阅读说明：本技术 防弧光聚碳酸酯材料、防弧光挡板及其制备方法 (Arc-light-proof polycarbonate material, arc-light-proof baffle plate and preparation method thereof ) 是由 李森 吴晗 于 2021-08-26 设计创作，主要内容包括：本发明涉及塑料板材技术领域,具体涉及防弧光聚碳酸酯材料、防弧光挡板及其制备方法,本发明提供的防弧光聚碳酸酯材料中增加了含有抗弧光材料的色母粒,抗弧光材料能够吸收焊接弧光发出的光辐射,是防弧光挡板的主要作用成分,通过对弧光的吸收或阻隔,达到降低弧光辐射的作用；该色母粒的成分选为与防弧光挡板相同的聚碳酸酯材料,由于材料相同,在熔融共混的过程中,色母的耐热等级与聚碳酸酯是相适应的,在正常的温度下,可以正常使用,并且不会引起变色的情况发生,该挡板通过加入抗弧光色母粒,使得其具有优异的抗弧光效果,能够有效地降低电焊孤光带来的危害。(The invention relates to the technical field of plastic plates, in particular to an arc-proof polycarbonate material, an arc-proof baffle plate and a preparation method thereof, wherein the arc-proof polycarbonate material provided by the invention is added with color master batches containing the arc-proof material, the arc-proof material can absorb light radiation emitted by welding arc light and is a main action component of the arc-proof baffle plate, and the effect of reducing the arc light radiation is achieved by absorbing or blocking the arc light; the color master batch is made of polycarbonate materials which are the same as the arc light prevention baffle, and due to the fact that the materials are the same, in the process of melt blending, the heat resistance grade of the color master batch is adaptive to the polycarbonate, the color master batch can be normally used at normal temperature, the color change can not be caused, and the baffle has an excellent arc light prevention effect by adding the arc light prevention color master batch, and the harm caused by arc light prevention can be effectively reduced.)

1. The arc-light-proof polycarbonate material is characterized by being prepared from the following raw materials in parts by weight: 140 portions of polycarbonate, 15 to 30 portions of anti-arc light color master batch, 1 to 1.5 portions of colorant, 1 to 2 portions of antioxidant, 1 to 2 portions of antistatic agent and 2 to 4 portions of flame retardant.

2. The arc-light-resistant polycarbonate material as claimed in claim 1, wherein the arc-light-resistant color master batch is prepared by mixing a master batch body, silicon dioxide and hexamethylphosphoric triamide, the mass of the hexamethylphosphoric triamide accounts for 0.1-0.4% of the master batch body, and the mass of the silicon dioxide accounts for 2-6% of the master batch body.

3. The arc protection polycarbonate material of claim 1, wherein the colorant is an inorganic pigment.

4. The polycarbonate material of claim 1, wherein the antioxidant is any one of 2, 6-tributyl-4-methylphenol, bis-sulfide and pentaerythritol ester;

the antistatic agent is any one of an external coating type antistatic agent, a surfactant type internal mixing type antistatic agent and a high molecular permanent type antistatic agent;

the flame retardant is any one of tributyl phosphate, phosphoric triester and bromide.

5. An arc-proof shield made of the arc-proof polycarbonate material according to any one of claims 1 to 4.

6. A preparation method of an arc-proof baffle plate is characterized in that the components and the content thereof contained in the arc-proof polycarbonate material according to any one of claims 1 to 4 are respectively weighed, and the method comprises the following steps:

step S1: melting and mixing the master batch body, silicon dioxide and hexamethylphosphoramide, adding a colorant, and performing extrusion granulation to obtain the arc light resistant master batch;

step S2: pre-drying the polycarbonate and the arc light resistant color master batch;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high-speed stirrer, adding an antioxidant, an antistatic agent and a flame retardant, and uniformly stirring;

step S4: adding the mixed materials into a double-screw extruder for melting and extruding a plate;

step S5: and cooling and shaping to obtain the arc light prevention baffle.

7. The method for manufacturing an arc-protecting baffle as claimed in claim 6, wherein the baking in step S2 is performed in an oven at a temperature of 115 ℃ and 120 ℃ for a period of 16-20 hours so that the water content is less than 0.02%.

8. The method for preparing an arc-proof baffle as recited in claim 6, wherein the stirring speed in step 3 is 300-400r/min, and the stirring time is 20-30 min.

9. The method for preparing an arc-protecting baffle as claimed in claim 6, wherein the screw length-diameter ratio of the twin-screw extruder in the step 4 is 20:1, and the screw rotation speed is 100-250 r/min.

10. The method for preparing an arc-proof baffle as recited in claim 6, wherein the head temperature of the twin-screw extruder in the step 4 is 250-270 ℃, the front-stage temperature is 250-310 ℃, the middle-stage temperature is 240-280 ℃, and the rear-stage temperature is 230-250 ℃.

Technical Field

The invention relates to the technical field of plastic plates, in particular to an arc-proof polycarbonate material, an arc-proof baffle plate and a preparation method thereof.

Background

In the welding process, the harm of the arc light to the eyes of workers is concerned by people, but the harm of the arc light to the skin of a human body is easily ignored; the arc light for electric welding mainly includes infrared ray, visible ray and ultraviolet ray. These belong to the hot line spectrum. When the welding arc temperature is 3000 ℃, the radiation wavelength is less than 290 m; the radiation wavelength is less than 230m μm at 3200 deg.C. When light radiation is applied to the body, tissue within the body absorbs the radiation, causing thermal, photochemical or ionizing effects in the tissue, which can result in acute or chronic injury to the body tissue. Therefore, it is a very necessary matter to improve the awareness of the damage of the arc light and to strengthen the protection of the arc light.

In the prior art, when the automatic welding machine is used for automatic welding, a worker needs to stand outside the welding chamber to observe the welding condition, and the common baffle plate cannot effectively block arc light, so that the physical health of the worker is easily damaged.

Disclosure of Invention

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the invention provides an arc-light-proof polycarbonate material which is prepared from the following raw materials in parts by weight: 140 portions of polycarbonate, 15 to 30 portions of anti-arc light color master batch, 1 to 1.5 portions of colorant, 1 to 2 portions of antioxidant, 1 to 2 portions of antistatic agent and 2 to 4 portions of flame retardant.

Further, the anti-arc light color master batch is formed by mixing a master batch body, silicon dioxide and hexamethylphosphoric triamide, wherein the mass of the hexamethylphosphoric triamide accounts for 0.1-0.4% of the master batch body, and the mass of the silicon dioxide accounts for 2-6% of the master batch body.

Further, the colorant is an inorganic pigment.

Further, the antioxidant is any one of 2, 6-tributyl-4-methylphenol, dimethyl sulfide and pentaerythritol ester; the antistatic agent is any one of an external coating type antistatic agent, a surfactant type internal mixing type antistatic agent and a high molecular permanent type antistatic agent; the flame retardant is any one of tributyl phosphate, phosphoric triester and bromide.

Further, the arc-proof baffle plate is made of an arc-proof polycarbonate material.

Further, a preparation method of the arc-proof baffle plate comprises the following steps of respectively weighing the raw materials of the components according to the components and the content of the arc-proof polycarbonate material:

step S1: melting and mixing the master batch body, silicon dioxide and hexamethylphosphoramide, adding a colorant, and performing extrusion granulation to obtain the arc light resistant master batch;

step S2: pre-drying the polycarbonate and the arc light resistant color master batch;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high-speed stirrer, adding an antioxidant, an antistatic agent and a flame retardant, and uniformly stirring;

step S4: adding the mixed materials into a double-screw extruder for melting and extruding a plate;

step S5: and cooling and shaping to obtain the arc light prevention baffle.

Further, the drying treatment in the step S2 is performed in an oven at a temperature of 115 ℃ and 120 ℃ for 16-20h, so that the water content is lower than 0.02%.

Further, the stirring speed in the step 3 is 300-400r/min, and the stirring time is 20-30 min.

Further, the length-diameter ratio of the screw of the twin-screw extruder in the step 4 is 20:1, and the rotating speed of the screw is 100-250 r/min.

Further, the head temperature of the twin-screw extruder in the step 4 is 250-.

The invention has the advantages or beneficial effects that:

the anti-arc polycarbonate material provided by the invention is added with the color master batch containing the anti-arc light material, the anti-arc light material can absorb light radiation emitted by welding arc light, is a main active component of the anti-arc light baffle plate, and achieves the effect of reducing arc light radiation through absorbing or blocking the arc light; the color master batch is made of polycarbonate material which is the same as the arc light-proof baffle, and because the material is the same, the heat-resistant grade of the color master batch is adaptive to that of the polycarbonate in the process of melt blending, the color master batch can be normally used at normal temperature, and the color change can not be caused; the colorant is selected so that the color master batch can have certain color change in the extrusion granulation process, and the anti-arc light baffle plate after the color master batch and the polycarbonate are melt blended meets the standard color requirement.

In the invention, the mixture of silicon dioxide and hexamethylphosphoramide is selected as the arc-resistant material, and the silicon dioxide has the following functions: a. the strength and the elongation of the polycarbonate are improved; b. the wear resistance is improved, and the surface smoothness of the material is improved; c. the anti-aging performance is improved; then hexamethylphosphoramide is matched to effectively block/absorb the arc light within the range of 250-380nm, thereby reducing the harm caused by the arc light.

The invention also provides the arc-proof light baffle, the baffle has excellent arc-proof effect by adding the arc-proof color master batch, the harm caused by arc-proof light is reduced, and the arc-proof light baffle has excellent physical properties by adding the antistatic agent, the antioxidant and the flame retardant, and has antistatic, antioxidant and flame retardant properties.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The terms "central," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used merely to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

The appearances of the terms first, second, and third, if any, are used for descriptive purposes only and are not intended to be limiting or imply relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; 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.

The technical solutions in the embodiments of the present invention are described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, the detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, belong to the protection scope of the invention.

Example 1

In the prior art, when automatic welding of a machine is carried out, a worker needs to stand outside a welding chamber to observe the welding condition, and an ordinary baffle plate cannot effectively block arc light, so that the physical health of the worker is easily damaged.

Aiming at the technical problem, the invention provides an arc-light-proof polycarbonate material which is prepared from the following raw materials in parts by weight: 140 portions of polycarbonate, 15 to 30 portions of anti-arc light color master batch, 1 to 1.5 portions of colorant, 1 to 2 portions of antioxidant, 1 to 2 portions of antistatic agent and 2 to 4 portions of flame retardant.

The anti-arc polycarbonate material provided by the invention is added with the color master batch containing the anti-arc light material, the anti-arc light material can absorb light radiation emitted by welding arc light, is a main active component of the anti-arc light baffle plate, and achieves the effect of reducing arc light radiation through absorbing or blocking the arc light; the color master batch is made of a polycarbonate material (special color master batch) which is the same as the arc light prevention baffle, and the heat resistance grade of the color master batch is adapted to the polycarbonate in the process of melt blending because the material is the same, so that the color master batch can be normally used at normal temperature and cannot cause the color change; the colorant is selected so that the color master batch can have certain color change in the extrusion granulation process, and the color master batch and the polycarbonate are subjected to melt blending to meet the standard color requirement.

The main frequencies of the welding arc are 365nm, 290nm and 254nm respectively, and the ultraviolet radiation is divided into an A wave band (320-. When the physical temperature reaches over 1200 ℃, ultraviolet rays appear in the spectrum, the higher the temperature is, the shorter the wavelength is, the higher the intensity is, the temperature of electric welding and gas welding can reach over 2900, and ultraviolet rays with the wavelength shorter than 290nm and even shorter than 230nm can be generated. The biggest harm of ultraviolet radiation to human bodies is that skin and eyes (skin cancer and electric ophthalmia, snow blindness and cataract) are mainly acted by ultraviolet rays with the wavelength of 330nm, the ultraviolet rays with the wavelength of 250nm and 320nm can be acted on cornea and conjunctiva epithelium, and the acute action can cause the electric ophthalmia.

Preferably, the arc light resistant color master batch is formed by mixing a master batch body, silicon dioxide and hexamethylphosphoric triamide, wherein the mass of the hexamethylphosphoric triamide accounts for 0.1-0.4% of the master batch body, and the mass of the silicon dioxide accounts for 2-6% of the master batch body. In this embodiment 1, hexamethylphosphoric triamide can absorb ultraviolet wavelengths between 250-380nm, including three main frequencies of electric welding arc light, and by utilizing its ultra-strong ultraviolet absorption ability, it can effectively prevent ultraviolet from damaging skin and carcinogenic, and can greatly improve the anti-aging performance of the product.

In the invention, the mixture of silicon dioxide and hexamethylphosphoramide is selected as the arc-resistant material, and the silicon dioxide has the following functions: a. the strength and the elongation of the polycarbonate are improved; b. the wear resistance is improved, and the surface smoothness of the material is improved; c. the anti-aging performance is improved; the mechanical property of the arc-proof baffle can be improved as a whole.

In view of the technical problem, it is preferable that the colorant of the present invention is an inorganic pigment because the colorant has a high solubility in a polymer during thermal processing and a low solubility at normal temperature, and thus gradually crystallizes out to cause surface blooming. The inorganic pigment is dispersed in the polymer in a heterogeneous state generally, the blooming phenomenon cannot be generated, and the inorganic pigment has good heat resistance and can basically meet the requirements of plastic processing. In example 1, the manufactured arc-proof light shield has certain color requirements, for example, the color is made into light purple, when an operator observes outside a welding chamber, the brightness of welding arc is low and the welding arc is not dazzling, and the coloring standard of the inorganic pigment is that the amount of the inorganic pigment is added quantitatively according to the requirements of a standard color card, so that the arc-proof light shield meets the color requirements of the standard.

In the production and manufacturing process, the inorganic pigment is added in the process of manufacturing the color master batch, because the pigment has certain water absorption performance, the pigment can be put into the production and manufacturing of the plate after being melted, mixed and dried, and if the inorganic pigment is directly added in the production process of the baffle, the mechanical performance and the use effect of the baffle are influenced due to the water absorption performance of the pigment.

Preferably, the antioxidant is any one of 2, 6-tributyl-4-methylphenol, bis-sulfide and pentaerythritol ester; the antistatic agent is any one of an external coating type antistatic agent, a surfactant type internal mixing type antistatic agent and a high molecular permanent type antistatic agent; the flame retardant is any one of tributyl phosphate, phosphoric triester and bromide. In the embodiment 1, hexamethylphosphoric triamide is easily oxidized by an oxide, and the addition of an antioxidant can prevent the hexamethylphosphoric triamide from being inactivated by oxidation reaction, so that the oxidation resistance of the arc-proof polycarbonate material can be improved on the whole, the service life is prolonged, in the arc welding process, electric sparks can be generated, and if static electricity is generated on the arc-proof baffle, the arc-proof baffle and the electric sparks can generate an effect and have certain danger, so that the antistatic agent plays a role in protection; the temperature is extremely high in the welding process, gas can escape, and the heat resistance of the baffle is tested, so that the flame retardant can play a role in isolating oxygen, insulating heat and preventing gas from escaping, and the baffle is effectively prevented from being influenced by high temperature to burn.

Accordingly, an arc-proof baffle plate is made of an arc-proof polycarbonate material.

Correspondingly, the preparation method of the arc-proof baffle plate comprises the following steps of respectively weighing the raw materials of the components according to the components and the content of the arc-proof polycarbonate material:

step S1: melting and mixing the master batch body, silicon dioxide and hexamethylphosphoramide, adding a colorant, and performing extrusion granulation to obtain the arc light resistant master batch;

step S2: pre-drying the polycarbonate and the arc light resistant color master batch;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high-speed stirrer, adding an antioxidant, an antistatic agent and a flame retardant, and uniformly stirring;

step S4: adding the mixed materials into a double-screw extruder for melting and extruding a plate;

step S5: and cooling and shaping to obtain the arc light prevention baffle.

Preferably, the drying treatment in step S2 is performed in an oven at a temperature of 115 ℃ and 120 ℃ for 16-20h, so that the water content is lower than 0.02%.

Preferably, the stirring speed in step 3 is 300-400r/min, and the stirring time is 20-30 min.

Preferably, the length-diameter ratio of the screw of the twin-screw extruder in the step 4 is 20:1, and the rotating speed of the screw is 100-250 r/min.

Preferably, the head temperature of the twin-screw extruder in the step 4 is 250-.

Example 2

A preparation method of an arc light prevention baffle plate comprises the following steps of respectively weighing raw materials of the components according to the components and the content of the components contained in an arc light prevention polycarbonate material:

step S1: adding 15 parts of master batch body, 2% of silicon dioxide and 0.1% of hexamethylphosphoramide by mass of the master batch body, and 1 part of colorant (inorganic pigment), melting and mixing for 15min, extruding and granulating to obtain 15 parts of arc light resistant master batch;

step S2: 140 parts of polycarbonate and 15 parts of arc light resistant color master batch are baked in an oven at 115 ℃ for 16 hours in advance to ensure that the water content is less than 0.02 percent;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high stirring machine, adding 1 part of antioxidant (pentaerythritol ester), 1 part of antistatic agent (surfactant internal mixing type) and 2 parts of flame retardant (bromide), stirring at 300r/min, and stirring for 20 minutes;

step S4: adding the mixed materials into a double-screw extruder for melting, and extruding a plate at the screw rotating speed of 150 r/min; wherein the head temperature of the double-screw extruder is 250-270 ℃, the front section temperature is 250-310 ℃, the middle section temperature is 240-280 ℃, and the rear section temperature is 230-250 ℃.

Step S5: and cooling and shaping for 45s to obtain the arc light prevention baffle.

Example 3

A preparation method of an arc light prevention baffle plate comprises the following steps of respectively weighing raw materials of the components according to the components and the content of the components contained in an arc light prevention polycarbonate material:

step S1: 20 parts of master batch body, 3 percent of silicon dioxide and 0.2 percent of hexamethylphosphoramide by mass of the master batch body, and 1.2 parts of colorant (inorganic pigment) are added, melted and mixed for 18min, extruded and granulated to prepare 20 parts of arc light resistant master batch;

step S2: 145 parts of polycarbonate and 20 parts of arc light resistant color master batch are baked in an oven at 115 ℃ for 17 hours in advance to ensure that the water content is less than 0.02 percent;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high stirring machine, adding 1.2 parts of antioxidant (pentaerythritol ester), 1.2 parts of antistatic agent (surfactant internal mixing type) and 2.5 parts of flame retardant (bromide), stirring at 300r/min, and stirring for 24 minutes;

step S4: adding the mixed materials into a double-screw extruder for melting, and extruding a plate at the screw rotating speed of 150 r/min; wherein the head temperature of the double-screw extruder is 250-270 ℃, the front section temperature is 250-310 ℃, the middle section temperature is 240-280 ℃, and the rear section temperature is 230-250 ℃.

Step S5: and cooling and shaping for 60s to obtain the arc-proof baffle.

Example 4

A preparation method of an arc light prevention baffle plate comprises the following steps of respectively weighing raw materials of the components according to the components and the content of the components contained in an arc light prevention polycarbonate material:

step S1: 25 parts of master batch body, 5 percent of silicon dioxide and 0.3 percent of hexamethylphosphoramide by mass of the master batch body, and 1.2 parts of colorant (inorganic pigment) are added, melted and mixed for 20min, extruded and granulated to prepare 25 parts of arc light resistant master batch;

step S2: 155 parts of polycarbonate and 25 parts of arc light resistant color master batch are baked in an oven at 120 ℃ for 18.5 hours in advance to ensure that the water content is less than 0.02 percent;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high stirring machine, adding 1.4 parts of antioxidant (pentaerythritol ester), 1.4 parts of antistatic agent (surfactant internal mixing type) and 3 parts of flame retardant (bromide), stirring at 350r/min, and stirring for 27 minutes;

step S4: adding the mixed materials into a double-screw extruder for melting, and extruding a plate at the screw rotating speed of 200 r/min; wherein the head temperature of the double-screw extruder is 250-270 ℃, the front section temperature is 250-310 ℃, the middle section temperature is 240-280 ℃, and the rear section temperature is 230-250 ℃.

Step S5: and cooling and shaping for 75s to obtain the arc-proof baffle.

Example 5

A preparation method of an arc light prevention baffle plate comprises the following steps of respectively weighing raw materials of the components according to the components and the content of the components contained in an arc light prevention polycarbonate material:

step S1: 30 parts of master batch body, 6 percent of silicon dioxide and 0.4 percent of hexamethylphosphoramide by mass of the master batch body, and 1.5 parts of colorant (inorganic pigment) are added, melted and mixed for 22min, extruded and granulated to prepare 30 parts of arc light resistant master batch;

step S2: 160 parts of polycarbonate and 30 parts of arc light resistant color master batch are baked in an oven at 120 ℃ for 20 hours in advance to ensure that the water content is less than 0.02 percent;

step S3: adding the dried polycarbonate and the arc light resistant color master batch into a high stirring machine, adding 1.5 parts of antioxidant (pentaerythritol ester), 1.5 parts of antistatic agent (surfactant internal mixing type) and 4 parts of flame retardant (bromide), stirring at 400r/min, and stirring for 30 minutes;

step S4: adding the mixed materials into a double-screw extruder for melting, and extruding a plate at the screw rotating speed of 250 r/min; wherein the head temperature of the double-screw extruder is 250-270 ℃, the front section temperature is 250-310 ℃, the middle section temperature is 240-280 ℃, and the rear section temperature is 230-250 ℃.

Step S5: and cooling and shaping for 90s to obtain the arc light prevention baffle.

Comparative example 1

Taking a common polycarbonate baffle without adding color master batch, and coating the common polycarbonate baffle with an ultraviolet-resistant film.

Table 1 shows the raw material ratios of the arc-protected polycarbonates in examples 2 to 5

TABLE 1

The welding arc light test is that the arc light prevention baffles of the embodiments 2 to 5 are respectively tested, an ultraviolet sensor is arranged outside a welding chamber, the ultraviolet sensor can collect light radiation emitted by welding, and then a central processing module is used for processing and calculating to obtain data; the light transmittance was measured again by an optical transmission measuring instrument, and Table 2 shows data of the arc-proof shields measured in examples 2 to 5, and comparative example 1:

TABLE 2

Test items	Example 2	Example 3	Example 4	Example 5	Comparative example 1
						Transmittance ratio%	93.9	94.6	94.1	92.3	88.7
Ultraviolet transmittance%	1.6	1.0	1.1	1.9	37.6

As can be seen from Table 2, the UV-resistant capability of the conventional UV-resistant film coated on the baffle is only 62.4%, one third of UV still passes through the baffle to cause light radiation to operators, and 37.6% of UV radiation is harmful, but the arc-resistant polycarbonate material and the arc-resistant baffle provided by the invention can isolate over 98% of UV radiation and have better light transmission performance, but a very small part of UV still can pass through the baffle, the UV has a wavelength of 100-250nm, which belongs to C-band wavelength, and in the general welding process, the main frequencies of the UV radiation are 365nm, 290nm and 254nm, and the wavelengths of other frequencies are very small, so most of the UV radiation is absorbed by the arc-resistant baffle. Therefore, the arc-proof polycarbonate material provided by the invention can be used as the material of an arc-proof baffle plate.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by the present specification, or any other related technical fields directly or indirectly applied thereto, are included in the scope of the present invention.