Explosion-proof anti-static material and preparation method thereof

Abstract

The invention relates to an explosion-proof antistatic material and a preparation method thereof, the explosion-proof antistatic material comprises the following components by weight: 35-45% of modified unsaturated polyester resin, 25-30% of nickel-plated chopped glass fiber, 15-25% of calcium carbonate, 8.5-14.5% of a conductive filler, 3-5% of a low shrinkage agent, 1-2% of an antistatic agent, 1-2% of a thickener and 0.5-1.5% of an initiator; the anti-explosion and anti-static material prepared by the invention has excellent anti-explosion performance and anti-static performance.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of high polymer composite sheet film plastic SMC, and particularly relates to an anti-explosion and anti-static material and a preparation method thereof. BACKGROUND

[0002] The material of the explosion-proof box is generally aluminum alloy, carbon steel or stainless steel, but these materials cannot be used as anti-static materials. Engineering plastics have excellent comprehensive performance, high rigidity, small creep, high mechanical strength, good heat resistance, good electrical insulation, and can be used in harsh chemical and physical environments for a long time, and can replace metals as engineering structural materials, among which SMC is a high-performance engineering plastic.

[0003] SMC, i.e., sheet molding compound, is a molding intermediate material specially designed for dry manufacturing of glass steel products, in which the synthetic resin is mainly unsaturated polyester resin, the reinforcing material is chopped fiber coarse sand or original wire, and the auxiliary materials include curing agent (initiator), surface treatment agent, thickening agent, low shrinkage additive, release agent, coloring agent, filler and crosslinking agent, etc.

[0004] The anti-static performance is a basic characteristic of the explosion-proof material. When the surface resistance value of the material is in the range of 10 6 -10 9 Ohms, the anti-static performance is better, and when the internal components of the shell leak, the shell itself will not generate static electricity or leakage, and in the explosion-proof area, the explosion of dangerous gases or dust in the air and the leakage caused by personnel touching will not occur, so the explosion-proof performance is better.

[0005] The existing SMC material has poor anti-static performance when used as an explosion-proof material, which cannot meet the requirements of existing explosion-proof technology. In addition, the conductive carbon fiber in the SMC material has a risk of sharp discharge, and lacks fireproof performance. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the deficiencies of the prior art, the present application provides an anti-explosion and anti-static material and a preparation method thereof, which is suitable for the manufacture of explosion-proof equipment in flammable and explosive places.

[0008] (II) Technical solutions

[0009] To achieve the above purpose, the present application is realized by the following technical solutions:

[0010] An explosion-proof and anti-static material, comprising the following components in percentage by mass: 35-45% modified unsaturated polyester resin, 25-30% nickel-plated short glass fiber, 15-25% calcium carbonate, 8.5-14.5% conductive filler, 3-5% low shrinkage agent, 1-2% antistatic agent, 1-2% thickening agent and 0.5-1.5% initiator.

[0011] Further, the preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 19-20 parts of neopentyl glycol, 13-14 parts of ethylene glycol, 0.25-0.3 parts of dipropylene glycol, 0.65-0.7 parts of phthalic anhydride, 27-27.5 parts of maleic anhydride and 32-33 parts of styrene are mixed uniformly in a reaction kettle and reacted at a temperature of 190-220℃ to obtain the modified unsaturated polyester resin.

[0012] Further, the conductive filler comprises conductive carbon fiber, carbon nanotube and conductive carbon black.

[0013] Further, the mass of the conductive carbon fiber is 3-5% of the total weight of the explosion-proof and anti-static material, the mass of the carbon nanotube is 0.5-1.5% of the total weight of the explosion-proof and anti-static material, and the mass of the conductive carbon black is 5-8% of the total weight of the explosion-proof and anti-static material.

[0014] Further, the modified carbon nanotube is a mixture of single-walled carbon nanotube and silane coupling agent, the tube diameter of the single-walled carbon nanotube is 8-15nm, the mass ratio of the single-walled carbon nanotube to the silane coupling agent is 1:0.002, and the silane coupling agent is KH750.

[0015] Further, the low shrinkage agent is PS.

[0016] Further, the antistatic agent is alcohol-based quaternary ammonium salt, the alcohol-based quaternary ammonium salt is di-tallowyl hydroxyethyl methyl ammonium methyl sulfate, the thickening agent is magnesium oxide, and the initiator is benzoyl peroxide.

[0017] Further, the length of the nickel-plated short glass fiber is 3-6mm.

[0018] A preparation method of the explosion-proof and anti-static material, comprising the following steps:

[0019] S1: mixing the conductive carbon black with the modified unsaturated polyester resin, then adding the modified carbon nanotube and mixing uniformly, and then using a shear dispersing machine to process at a speed of 2000-3000rpm for 30-60min to obtain a pretreated filler;

[0020] S2: first, the pretreated filler is mixed with the antistatic agent and the dispersing agent, then the calcium carbonate and the thickening agent are stirred uniformly, and finally the initiator is added to obtain a resin paste by vacuum degassing, wherein the dispersing agent is BYK 9010;

[0021] S3: the resin paste is uniformly coated in a pressing groove, then the nickel-plated short glass fibers and the conductive carbon fibers are alternately laid on the surface of the resin paste, and then the material is pressed at 10-15 MPa, and then the temperature is lowered to 35-45 DEG C for aging for 48-96 h;

[0022] S4: the material after aging in S3 is molded and cured in a metal mold at 145-155 DEG C and 15-25 MPa;

[0023] S5: the material after molding and curing in S4 is uniformly sprayed with a polyurethane-based conductive coating, and then the material is cured at 80-100 DEG C for 20 min, and then the material is treated by plasma to obtain an explosion-proof and anti-static material.

[0024] Compared with the prior art, the technical scheme has the following beneficial effects:

[0025] 1. The main purpose of the insulating material and technology is to prevent current from passing through, so as to protect the safety of the circuit and the equipment. When the insulating material or the equipment fails, it may cause current leakage, short circuit and other dangerous conditions, thereby reducing the explosion-proof performance, so that the shell cannot be used in the explosion-proof area. The modified carbon nanotube and the nickel-plated short glass fiber are used to form a three-dimensional through conductive network, thereby increasing the anti-static capacity of the material.

[0026] 2. The modified unsaturated polyester resin has stronger corrosion resistance, and after being compounded with the nickel-plated short glass fiber and the conductive carbon fiber, the corrosion resistance is further enhanced, and the anti-static performance is also enhanced.

[0027] 3. The explosion-proof equipment in the explosion-proof area, such as the shell, cannot be anti-static, so it is necessary to install a grounding device to achieve the effect of anti-static or anti-leakage. We directly solve the anti-static problem from the material to avoid the failure of the grounding device, thereby achieving the explosion-proof effect. The present application adds aluminum oxide and modified unsaturated polyurethane resin. The aluminum oxide is a flame retardant and has a flame retardant function. The modified unsaturated polyurethane resin has the characteristics of corrosion resistance, low volatility, low curing shrinkage and thermal stability, and can enhance the explosion-proof and fire-proof effect of the prepared explosion-proof box. BRIEF DESCRIPTION OF DRAWINGS

[0028] ATTACHMENT Figure 1 The anti-static performance test results of the comparative example 1 of the present application. DETAILED DESCRIPTION

[0029] The technical solutions of this invention will be clearly and completely described below with reference to the embodiments thereof. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0030] In the following comparative examples, the mass ratio of the single-walled carbon nanotubes to the silane coupling agent is 1:0.002, and the silane coupling agent is KH750;

[0031] The antistatic agent is an alcohol-based quaternary ammonium salt, and the alcohol-based quaternary ammonium salt is dihexylhydroxyethylmethyl methyl ammonium sulfate.

[0032] Example 1

[0033] A method for preparing an explosion-proof and antistatic material includes the following steps:

[0034] S1: Conductive carbon black is mixed with modified unsaturated polyester resin, then modified carbon nanotubes are added and mixed evenly. The mixture is then treated with a shear disperser at 2500 rpm for 45 min to obtain pretreated filler.

[0035] S2: First, mix the pretreated filler with the antistatic agent and dispersant evenly, add calcium carbonate and thickener and stir evenly, and finally add the initiator and perform vacuum degassing to obtain resin paste. The dispersant is BYK 9010.

[0036] S3: The resin paste is evenly coated in the pressing groove, and then nickel-plated short glass fibers and conductive carbon fibers are alternately spread on the surface of the resin paste. After pressing at 13 MPa, the temperature is lowered to 40℃ and cured for 75 hours.

[0037] S4: The material cured by S3 is molded and cured in a metal mold at 150°C and 20MPa;

[0038] S5: After S4 molding and curing, a polyurethane-based conductive coating is uniformly sprayed onto the material, then cured at 90°C for 20 minutes and subjected to plasma treatment to obtain an explosion-proof and antistatic material.

[0039] An explosion-proof and antistatic material, comprising the following components by weight percentage: 40% modified unsaturated polyester resin, 26.5% nickel-plated chopped glass fiber, 16.5% calcium carbonate, 8.5% conductive filler, 4% PS, 1.5% antistatic agent, 1.5% magnesium oxide and 1.5% benzoyl peroxide.

[0040] The preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 19.6226 parts by weight of neopentyl glycol, 13.015 parts by weight of ethylene glycol, 0.263 parts by weight of dipropylene glycol, 0.6874 parts by weight of phthalic anhydride, 27.028 parts by weight of maleic anhydride, and 32.034 parts by weight of styrene are uniformly mixed in a reaction kettle and reacted at a temperature of 205°C to obtain the modified unsaturated polyester resin.

[0041] The mass of the conductive carbon fiber is 3% of the total weight of the explosion-proof and anti-static material, the mass of the modified carbon nanotube is 0.5% of the total weight of the explosion-proof and anti-static material, and the mass of the conductive carbon black is 5% of the total weight of the explosion-proof and anti-static material.

[0042] The modified carbon nanotube is a mixture of single-walled carbon nanotubes and a silane coupling agent, and the tube diameter of the single-walled carbon nanotube is 12 nm.

[0043] The length of the nickel-plated short glass fiber is 4.5 mm.

[0044] Example 2

[0045] A preparation method of an explosion-proof and anti-static material, comprising the following steps:

[0046] S1: The conductive carbon black is mixed with the modified unsaturated polyester resin, then the modified carbon nanotube is added and uniformly mixed, and then a shear dispersing machine is used to treat for 30 min at a speed of 2000 rpm to obtain a pretreated filler;

[0047] S2: The pretreated filler is first uniformly mixed with an anti-static agent and a dispersing agent, calcium carbonate and a thickening agent are then uniformly stirred, and finally an initiator is added to perform vacuum degassing to obtain a resin paste, and the dispersing agent is BYK 9010;

[0048] S3: The resin paste is uniformly coated in a press tank, then nickel-plated short glass fibers and conductive carbon fibers are alternately laid on the surface of the resin paste, and after pressing at 10 MPa, the temperature is lowered to 35-45°C for aging for 48 h;

[0049] S4: The material after aging in S3 is molded and cured in a metal mold at 145°C and 15 MPa;

[0050] S5: The material after molding and curing in S4 is uniformly sprayed with a polyurethane-based conductive coating, then cured at 80-100°C for 20 min, and then subjected to plasma treatment to obtain an explosion-proof and anti-static material.

[0051] The above explosion-proof and anti-static material comprises the following components in terms of mass percentage: 35% modified unsaturated polyester resin, 30% nickel-plated short glass fiber, 15% calcium carbonate, 14.5% conductive filler, 3% PS, 1% anti-static agent, 1% thickening agent, and 0.5% initiator.

[0052] The preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 19 parts of neopentyl glycol, 13 parts of ethylene glycol, 0.25 parts of dipropylene glycol, 0.65 parts of phthalic anhydride, 27 parts of maleic anhydride and 32 parts of styrene are mixed uniformly in a reaction kettle and reacted at a temperature of 190℃ to obtain the modified unsaturated polyester resin.

[0053] The conductive filler includes conductive carbon fibers, carbon nanotubes and conductive carbon black, the mass of the conductive carbon fibers is 5% of the total weight of the explosion-proof and anti-static material, the mass of the carbon nanotubes is 1.5% of the total weight of the explosion-proof and anti-static material, and the mass of the conductive carbon black is 8% of the total weight of the explosion-proof and anti-static material.

[0054] The single-walled carbon nanotube has a tube diameter of 8nm.

[0055] The length of the nickel-plated short glass fiber is 3mm.

[0056] Example 3

[0057] A preparation method of an explosion-proof and anti-static material includes the following steps:

[0058] S1: The conductive carbon black is mixed with the modified unsaturated polyester resin, then the modified carbon nanotubes are added and mixed uniformly, and then a shear dispersing machine is used to process the pre-treatment filler at a speed of 3000rpm for 60min;

[0059] S2: The pre-treatment filler is first mixed with the anti-static agent and the dispersing agent, then the calcium carbonate and the thickening agent are stirred uniformly, and finally the initiator is added to perform vacuum degassing to obtain a resin paste, and the dispersing agent is BYK 9010;

[0060] S3: The resin paste is uniformly coated in a press tank, then the nickel-plated short glass fiber and the conductive carbon fiber are alternately laid on the surface of the resin paste, and then the material is pressed at 15Mpa and cooled to 45℃ for aging for 96h;

[0061] S4: The material after aging in S3 is molded and cured at 155℃ and 25MPa in a metal mold;

[0062] S5: The material after molding and curing in S4 is uniformly sprayed with a polyurethane-based conductive coating, then cured at 100℃ for 20min, and then subjected to plasma treatment to obtain an explosion-proof and anti-static material.

[0063] The above explosion-proof and anti-static material includes the following components in terms of mass percentage: 45% of the modified unsaturated polyester resin, 25% of the nickel-plated short glass fiber, 15% of the calcium carbonate, 8.5% of the conductive filler, 4% of PS, 2% of the anti-static agent, 2% of the thickening agent and 1.5% of the initiator.

[0064] The preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 20 parts of neopentyl glycol, 14 parts of ethylene glycol, 0.3 parts of dipropylene glycol, 0.7 parts of phthalic anhydride, 27.5 parts of maleic anhydride and 33 parts of styrene are mixed uniformly in a reaction kettle and reacted at a temperature of 220℃ to obtain the modified unsaturated polyester resin.

[0065] The conductive filler includes conductive carbon fibers, carbon nanotubes and conductive carbon black, the mass of the conductive carbon fibers is 3% of the total weight of the explosion-proof and anti-static material, the mass of the carbon nanotubes is 0.5.5% of the total weight of the explosion-proof and anti-static material, and the mass of the conductive carbon black is 5% of the total weight of the explosion-proof and anti-static material.

[0066] The tube diameter of the single-walled carbon nanotube is 8nm.

[0067] The length of the nickel-plated short glass fiber is 3mm.

[0068] Comparative Example 1

[0069] The difference from Example 1 is that no conductive filler is added, and the mass of the modified unsaturated polyester resin is 48.5% of the weight of the explosion-proof and anti-static material.

[0070] A preparation method of an explosion-proof and anti-static material, comprising the following steps:

[0071] S1: the modified unsaturated polyester resin is mixed and treated with a shearing dispersing machine at a speed of 2500rpm for 45min to obtain pretreated fillers;

[0072] S2: the pretreated fillers are first mixed uniformly with an anti-static agent and a dispersing agent, calcium carbonate and a thickening agent are added and stirred uniformly, and finally an initiator is added to perform vacuum degassing to obtain a resin paste, and the dispersing agent is BYK 9010;

[0073] S3: the resin paste is uniformly coated in a pressing groove, then nickel-plated short glass fibers are alternately laid on the surface of the resin paste, and after pressing at 13Mpa, the temperature is lowered to 40℃ for aging for 75h;

[0074] S4: the material after aging in S3 is molded and cured at 150℃ and 20MPa in a metal mold;

[0075] S5: the material after molding and curing in S4 is uniformly sprayed with a polyurethane-based conductive coating, then cured at 90℃ for 20min, and then subjected to plasma treatment to obtain an explosion-proof and anti-static material.

[0076] An explosion-proof anti-static material, comprising the following components in percentage by mass: 48.5% modified unsaturated polyester resin, 26.5% nickel-plated short glass fiber, 16.5% calcium carbonate, 4% PS, 1.5% antistatic agent, 1.5% magnesium oxide and 1.5% benzoyl peroxide.

[0077] The preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 19.6226 parts by weight of neopentyl glycol, 13.015 parts by weight of ethylene glycol, 0.263 parts by weight of dipropylene glycol, 0.6874 parts by weight of phthalic anhydride, 27.028 parts by weight of maleic anhydride and 32.034 parts by weight of styrene are uniformly mixed in a reaction kettle and reacted at a temperature of 205 DEG C to obtain the modified unsaturated polyester resin.

[0078] The length of the nickel-plated short glass fiber is 4.5 mm.

[0079] Comparative Example 2

[0080] The difference from Example 1 is that no conductive carbon black is added in the conductive filler.

[0081] A preparation method of an explosion-proof anti-static material, comprising the following steps:

[0082] S1: the unsaturated polyester resin is mixed with the modified carbon nanotube to obtain a pretreated filler, and then the pretreated filler is treated by a shearing dispersing machine at a rotating speed of 2500 rpm for 45 min;

[0083] S2: the pretreated filler is mixed with an antistatic agent and a dispersing agent, calcium carbonate and a thickening agent are added and stirred uniformly, and finally an initiator is added to obtain a resin paste after vacuum degassing, wherein the dispersing agent is BYK 9010;

[0084] S3: the resin paste is uniformly coated in a press tank, and then nickel-plated short glass fibers and conductive carbon fibers are alternately laid on the surface of the resin paste, and then the material is pressed at 13 MPa and cooled to 40 DEG C for aging for 75 h;

[0085] S4: the material after aging in S3 is molded and cured in a metal mold at 150 DEG C and 20 MPa;

[0086] S5: the material after molding and curing in S4 is uniformly sprayed with a polyurethane-based conductive coating, and then cured at 90 DEG C for 20 min and then subjected to plasma treatment to obtain an explosion-proof anti-static material.

[0087] An explosion-proof anti-static material, comprising the following components in percentage by mass: 40% modified unsaturated polyester resin, 26.5% nickel-plated short glass fiber, 16.5% calcium carbonate, 8.5% conductive filler, 4% PS, 1.5% antistatic agent, 1.5% magnesium oxide and 1.5% benzoyl peroxide.

[0088] The preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 19.6226 parts by weight of neopentyl glycol, 13.015 parts by weight of ethylene glycol, 0.263 parts by weight of dipropylene glycol, 0.6874 parts by weight of phthalic anhydride, 27.028 parts by weight of maleic anhydride, and 32.034 parts by weight of styrene are uniformly mixed in a reaction kettle and reacted at a temperature of 205℃ to obtain the modified unsaturated polyester resin.

[0089] The mass of the conductive carbon fiber is 8% of the total weight of the explosion-proof and anti-static material, and the mass of the modified carbon nanotube is 0.5% of the total weight of the explosion-proof and anti-static material.

[0090] The modified carbon nanotube is a mixture of single-walled carbon nanotubes and a silane coupling agent, and the tube diameter of the single-walled carbon nanotube is 12 nm.

[0091] The length of the nickel-plated short glass fiber is 4.5 mm.

[0092] Comparative Example 3

[0093] The difference from Example 1 is that the addition amount of the conductive filler is less than that in Example 1.

[0094] A preparation method of an explosion-proof and anti-static material, comprising the following steps:

[0095] S1: The conductive carbon black is mixed with the modified unsaturated polyester resin, then the modified carbon nanotube is added and uniformly mixed, and then a shear dispersing machine is used to treat for 45 min at a speed of 2500 rpm to obtain a pretreated filler;

[0096] S2: The pretreated filler is first mixed uniformly with an anti-static agent and a dispersing agent, calcium carbonate and a thickening agent are added and stirred uniformly, and finally an initiator is added to perform vacuum degassing to obtain a resin paste, and the dispersing agent is BYK 9010;

[0097] S3: The resin paste is uniformly coated in a press tank, then the nickel-plated short glass fiber and the conductive carbon fiber are alternately laid on the surface of the resin paste, and after pressing at 13 MPa, the temperature is lowered to 40℃ for aging for 75 h;

[0098] S4: The material after aging in S3 is molded and cured in a metal mold at 150℃ and 20 MPa;

[0099] S5: The material after molding and curing in S4 is uniformly sprayed with a polyurethane-based conductive coating, then cured at 90℃ for 20 min, and then subjected to plasma treatment to obtain an explosion-proof and anti-static material.

[0100] An explosion-proof and anti-static material comprises the following components in parts by weight: 40% modified unsaturated polyester resin, 26.5% nickel-plated short glass fiber, 16.5% calcium carbonate, 8.5% conductive filler, 4% PS, 1.5% antistatic agent, 1.5% magnesium oxide and 1.5% benzoyl peroxide.

[0101] The modified unsaturated polyester resin is prepared by mixing 19.6226 parts by weight of neopentyl glycol, 13.015 parts by weight of ethylene glycol, 0.263 parts by weight of dipropylene glycol, 0.6874 parts by weight of phthalic anhydride, 27.028 parts by weight of maleic anhydride and 32.034 parts by weight of styrene in a reaction kettle under a nitrogen atmosphere and reacting at a temperature of 205 DEG C.

[0102] The mass of the conductive carbon fiber is 2% of the total weight of the explosion-proof and anti-static material, the mass of the modified carbon nanotube is 0.2% of the total weight of the explosion-proof and anti-static material, and the mass of the conductive carbon black is 3% of the total weight of the explosion-proof and anti-static material.

[0103] The modified carbon nanotube is a mixture of single-walled carbon nanotubes and a silane coupling agent, and the single-walled carbon nanotubes have a tube diameter of 12 nm.

[0104] The length of the nickel-plated short glass fiber is 4.5 mm.

[0105] The explosion-proof and anti-static boxes prepared from the explosion-proof and anti-static materials prepared in the above examples and comparative examples are tested for surface resistance value. The results are shown in Table 1.

[0106]

[0107]

[0108] As can be seen from Examples 1-3, the explosion-proof and anti-static material prepared in the present application has excellent anti-static performance and qualified explosion-proof performance.

[0109] The explosion-proof material must have anti-static performance, and the surface resistance value of the anti-static material is less than 10 6 -10 9 ohms, the higher the surface resistance value, the better the anti-static performance and the better the explosion-proof performance of the material, and if it exceeds 10 9 ohms, it does not meet the standard of anti-static material.

[0110] As can be seen from Example 1 and Comparative Example 1 and Table 1, the explosion-proof and anti-static material prepared in the present application shows insulation performance without adding conductive filler, which proves that the addition of conductive filler can enhance the anti-static performance of the explosion-proof box and thus increase the explosion-proof performance of the explosion-proof box.

[0111] From the combination of Example 1 and Comparative Example 2 and Table 1, it can be seen that without adding the conductive carbon black, the anti-static performance of the prepared anti-explosion and anti-static material is greatly reduced, which proves that the conductive carbon black can increase the anti-static performance of the anti-explosion and anti-static material, thereby increasing the anti-explosion performance thereof.

[0112] From the combination of Example 1 and Comparative Example 3 and Table 1, it can be seen that if the addition amount of each substance in the conductive filler is less than the range claimed in the present application, the prepared material is a conductive material and does not have the anti-static function. Meanwhile, the material is subjected to the anti-static test, which proves that the addition amount of the conductive material in the range claimed in the present application can enhance the anti-static ability of the prepared material, thereby increasing the anti-explosion performance of the anti-explosion material.

[0113] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, can make equivalent replacements or changes within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An explosion-proof and antistatic material, characterized in that, According to the mass percentage, the following components are included: 35-45% modified unsaturated polyester resin, 25-30% nickel-plated short glass fiber, 15-25% calcium carbonate, 8.5-14.5% conductive filler, 3-5% low shrinkage agent, 1-2% antistatic agent, 1-2% thickening agent, and 0.5-1.5% initiator.

2. The explosion-proof and electrostatic-proof material according to claim 1, characterized in that: The preparation method of the modified unsaturated polyester resin is as follows: under a nitrogen atmosphere, 19-20 parts of neopentyl glycol, 13-14 parts of ethylene glycol, 0.25-0.3 parts of dipropylene glycol, 0.65-0.7 parts of phthalic anhydride, 27-27.5 parts of maleic anhydride, and 32-33 parts of styrene are mixed uniformly in a reaction kettle and reacted at a temperature of 190-220°C to obtain the modified unsaturated polyester resin.

3. The explosion-proof and electrostatic-proof material according to claim 1, characterized in that: The conductive filler includes conductive carbon fiber, modified carbon nanotube, and conductive carbon black.

4. The explosion-proof and electrostatic-proof material according to claim 3, characterized in that: The mass of the conductive carbon fiber is 3-5% of the total weight of the explosion-proof and anti-static material, the mass of the modified carbon nanotube is 0.5-1.5% of the total weight of the explosion-proof and anti-static material, and the mass of the conductive carbon black is 5-8% of the total weight of the explosion-proof and anti-static material.

5. The explosion-proof and electrostatic-proof material according to claim 4, characterized in that: The modified carbon nanotube is a mixture of single-walled carbon nanotubes and silane coupling agent, the tube diameter of the single-walled carbon nanotube is 8-15 nm, the mass ratio of the single-walled carbon nanotube to the silane coupling agent is 1:0.002, and the silane coupling agent is KH750.

6. The explosion-proof and electrostatic-proof material according to claim 1, wherein: The low shrinkage agent is PS.

7. The explosion-proof and electrostatic-proof material according to claim 1, wherein: The antistatic agent is an alcohol-based quaternary ammonium salt, the alcohol-based quaternary ammonium salt is di-tallowyl hydroxyethyl methyl ammonium methyl sulfate, the thickening agent is magnesium oxide, and the initiator is benzoyl peroxide.

8. The explosion-proof and electrostatic-proof material according to claim 1, characterized in that: The length of the nickel-plated short glass fiber is 3-6 mm.

9. A method for preparing an explosion-proof and electrostatic-proof material according to any one of claims 1 to 8, characterized in that, The following steps are included: S1: mix the conductive carbon black with the modified unsaturated polyester resin, then add the modified carbon nanotube and mix uniformly, then use a shear dispersing machine to treat at a speed of 2000-3000 rpm for 30-60 min to obtain a pretreated filler; S2: first mix the pretreated filler with the antistatic agent and dispersant uniformly, then add the calcium carbonate and thickening agent and stir uniformly, and finally add the initiator to vacuum degassing to obtain a resin paste; S3: uniformly coat the resin paste in a press tank, then alternately sprinkle the nickel-plated short glass fiber and conductive carbon fiber on the surface of the resin paste, and then press at 10-15 MPa, and then cool to 35-45°C for 48-96 h for curing; S4: after curing, the material of S3 is molded and cured in a metal mold at 145-155°C and 15-25 MPa; S5: after the material of S4 is molded and cured, uniformly spray a polyurethane-based conductive coating, then cure at 80-100°C for 20 min, and then perform plasma treatment to obtain an explosion-proof and anti-static material.

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