A lightweight pallet processing technology

Abstract

This invention provides a lightweight pallet processing technology, comprising the following steps: 1) foam core molding; 2) attaching a modified PET film to the surface of the foam core; 3) punching vacuum holes in the molded foam board to facilitate air suction during the thermoforming process, helping the modified PET film to adhere to the foam board after adhesive application; 4) high-temperature thermoforming, either in one step or in two stages, with a thermoforming temperature of 260-280℃; 5) attaching an anti-slip and wear-resistant layer; and 6) processing the support legs to obtain a lightweight pallet. The pallet of this invention has high toughness and strength, and can withstand 2 tons of goods without deformation on a single pallet.

Description

Technical Field

[0001] The invention belongs to the technical field of pallets, and in particular relates to a light pallet processing technology. Background Art

[0002] Foam pallets are favored by the market due to their light material and low freight. Currently, foam pallets are mostly used to carry items in workshops. However, due to the limited force bearing capacity of foam pallets, they are prone to breakage when the force is too large. In addition, compared with plastic pallets, they have poor fire resistance and are more prone to burning. In view of the above defects, the researchers believe that it is necessary to design a lightweight pallet whose structure is similar to that of existing foam pallets, but which has undergone special processing technology to give the pallet extremely strong toughness and other physical and mechanical properties. Summary of the invention

[0003] The invention aims to provide a light pallet processing technology to solve the problem of low strength and toughness of foam pallets in the prior art.

[0004] To achieve the above purpose, the specific scheme is as follows: A lightweight pallet processing technology includes the following steps:

[0005] 1) Foam core molding, the bracket is a connecting pipe structure, the bracket is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the load-bearing capacity of the core is increased, and the bracket is a modified plastic support tube;

[0006] Preparation method of plastic support tube: PP material and PA material are added into the material tube of the first extruder in a weight ratio of 2-5:1, and PA material is added into the material tube of the second extruder; the first extruder and the second extruder are connected as a double-layer co-extrusion head through a head connector, the material in the first extruder is melted and extruded into the outer layer of the PP tube, the material in the second extruder is melted and extruded into the inner support layer of the PA tube, the extruded double-layer plastic tube is towed by a towing machine, and then cooled and shaped to obtain a plastic support tube, wherein the surface of the plastic support tube is coated with 0.0001-0.2mm epoxy resin glue.

[0007] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.1-3mm.

[0008] The preparation method of the modified PET film is as follows: 1) adding an ethanol grinding solution of silicon carbide into a four-necked bottle, wherein the weight ratio of silicon carbide to the ethanol solution is 1:15-18; heating the bottle to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour, and obtaining solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, and heating the bottle to 200°C under nitrogen protection, so that the terephthalic acid is completely dissolved, and obtaining solution B; 3) adding solution B into solution A, wherein the volume ratio of solution B to solution A is 1:3-8; maintaining the reaction for 0.5-1 hour, heating the bottle to 255-265°C, and performing polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging the bottle, drawing, and pelletizing the bottle under nitrogen protection, and obtaining silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0009] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0010] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0011] 5) Attaching an anti-skid and wear-resistant layer, the preparation method of the anti-skid and wear-resistant layer: 52-62 parts by weight of rubber particles, 10-12 parts by weight of carbon fiber, 15-18 parts by weight of wollastonite, 2-4 parts by weight of polybrominated diphenyl ether, 18-20 parts by weight of calcium oxide, 35-40 parts by weight of polypropylene, 42-48 parts by weight of polyether polyol, 10-12 parts by weight of polyvinyl alcohol, 5-8 parts by weight of polyethylene wax, 18-20 parts by weight of silane coupling agent, 8-10 parts by weight of 1,4-cyclohexanedimethanol, and 15-17 parts by weight of sulfur; 1) rubber particles, carbon fiber, wollastonite, 1 / 3-1 / 2 1) adding the remaining polypropylene into a mixer for mixing to obtain a first mixed material; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to a mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) obtaining a 0.1-5 mm anti-skid and wear-resistant layer with an anti-skid pattern on one side through a multi-layer stretching extrusion system and an embossing die.

[0012] The method for attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0013] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0014] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0015] The inventors infer the principle of the present invention as follows:

[0016] The difference from the prior art is that the present invention achieves the following technical effects:

[0017] 1) The pallet body of the present invention is made of foam material with low density and light overall weight.

[0018] 2) The pallet of the present invention has high toughness and strength, and one pallet can bear 2 tons of goods without deformation.

[0019] 3) The pallet prepared by the process of the present invention is resistant to extreme climates such as high and low temperatures, and also has fireproof function. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Part I:

[0022] Embodiment 1:

[0023] Preparation of a plastic support tube: adding PP material and PA material in a weight ratio of 3:1 into the material pipe of the first extruder, and adding PA material into the material pipe of the second extruder; connecting the first extruder and the second extruder into a double-layer co-extrusion head through a head connector, melting the material in the first extruder and extruding the outer layer of the PP tube, melting the material in the second extruder and extruding to form an inner support layer of the PA tube, and pulling the extruded double-layer plastic tube with a traction machine, and then cooling and shaping it to obtain a plastic support tube.

[0024] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0025] Preparation of anti-skid and wear-resistant layer: 58 parts by weight of rubber particles, 10 parts by weight of carbon fiber, 16 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 38 parts by weight of polypropylene, 46 parts by weight of polyether polyol, 10 parts by weight of polyvinyl alcohol, 6 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3 of polypropylene are added to a mixer for mixing to obtain a first mixing refining; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) obtaining a 1mm anti-skid and wear-resistant layer with an anti-skid pattern on one side through a multi-layer stretching extrusion system and an embossing die.

[0026] A lightweight pallet processing process, the steps are as follows:

[0027] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to foam it in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.001 mm epoxy resin glue.

[0028] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.5mm.

[0029] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0030] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0031] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0032] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0033] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0034] After the above process, the lightweight pallet of Example 1 is obtained.

[0035] Embodiment 2:

[0036] Preparation of a plastic support tube: PP material and PA material are added to the material pipe of the first extruder in a weight ratio of 4:1, and PA material is added to the material pipe of the second extruder; the first extruder and the second extruder are connected to a double-layer co-extrusion head through a head connector, the material in the first extruder is melted and extruded to form an outer layer of the PP tube, the material in the second extruder is melted and extruded to form an inner support layer of the PA tube, the extruded double-layer plastic tube is towed by a traction machine, and then cooled and shaped to obtain a plastic support tube.

[0037] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0038] Preparation of anti-skid and wear-resistant layer: 52 parts by weight of rubber particles, 12 parts by weight of carbon fiber, 18 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 40 parts by weight of polypropylene, 48 parts by weight of polyether polyol, 12 parts by weight of polyvinyl alcohol, 8 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3-1 / 2 of polypropylene are added to a mixer for mixing to obtain a first Mixture; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixture in a stirring state to obtain a second mixture; 3) adding the second mixture to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) through a multi-layer stretching extrusion system and an embossing die, obtaining a 1.2 mm anti-skid and wear-resistant layer with an anti-skid pattern on one side.

[0039] A lightweight pallet processing process, the steps are as follows:

[0040] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.002mm epoxy resin glue.

[0041] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.15mm.

[0042] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0043] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0044] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0045] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0046] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0047] After the above process, the lightweight pallet of Example 2 is obtained.

[0048] Embodiment 3:

[0049] Preparation of a plastic support tube: adding PP material and PA material in a weight ratio of 2:1 into the material pipe of the first extruder, and adding PA material into the material pipe of the second extruder; connecting the first extruder and the second extruder into a double-layer co-extrusion head through a head connector, melting the material in the first extruder and extruding the outer layer of the PP tube, melting the material in the second extruder and extruding to form an inner support layer of the PA tube, and pulling the extruded double-layer plastic tube with a pulling machine, and then cooling and shaping it to obtain a plastic support tube.

[0050] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0051] Preparation of anti-skid and wear-resistant layer: 55 parts by weight of rubber particles, 11 parts by weight of carbon fiber, 17 parts by weight of wollastonite, 3 parts by weight of polybrominated diphenyl ether, 18 parts by weight of calcium oxide, 39 parts by weight of polypropylene, 45 parts by weight of polyether polyol, 11 parts by weight of polyvinyl alcohol, 7 parts by weight of polyethylene wax, 19 parts by weight of silane coupling agent, 9 parts by weight of 1,4-cyclohexanedimethanol, and 16 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3-1 / 2 of polypropylene are added to a mixer for mixing to obtain a first mixing refining; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) through a multi-layer stretching extrusion system and an embossing die, obtaining a 1.5 mm anti-skid and wear-resistant layer with an anti-skid pattern on one side.

[0052] A lightweight pallet processing process, the steps are as follows:

[0053] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.005 mm epoxy resin glue.

[0054] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.6mm.

[0055] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0056] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0057] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0058] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0059] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0060] After the above process, the lightweight pallet of Example 3 is obtained.

[0061] Embodiment 4:

[0062] Preparation of a plastic support tube: PP material and PA material are added into the material pipe of the first extruder in a weight ratio of 5:1, and PA material is added into the material pipe of the second extruder; the first extruder and the second extruder are connected as a double-layer co-extrusion head through a head connector, the material in the first extruder is melted and extruded into the outer layer of the PP tube, the material in the second extruder is melted and extruded into the inner support layer of the PA tube, the extruded double-layer plastic tube is towed by a traction machine, and then cooled and shaped to obtain a plastic support tube.

[0063] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0064] Preparation of anti-skid and wear-resistant layer: 52 parts by weight of rubber particles, 12 parts by weight of carbon fiber, 18 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 40 parts by weight of polypropylene, 48 parts by weight of polyether polyol, 12 parts by weight of polyvinyl alcohol, 8 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are: 1) adding rubber particles, carbon fiber, wollastonite, and 1 / 3-1 / 2 of polypropylene into a mixer for mixing to obtain the first A mixed material; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to an internal mixer, adding a silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) obtaining a 2mm anti-skid and wear-resistant layer with an anti-skid pattern on one side through a multi-layer stretching extrusion system and an embossing die.

[0065] A lightweight pallet processing process, the steps are as follows:

[0066] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.01mm epoxy resin glue.

[0067] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.1-3mm.

[0068] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0069] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0070] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0071] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0072] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0073] After the above process, the lightweight pallet of Example 4 is obtained.

[0074] Part II:

[0075] Comparative Example 1: Compared with Example 1, the plastic support tube prepared by the process of the present invention is not used, and other reference examples 1 are as follows:

[0076] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0077] Preparation of anti-skid and wear-resistant layer: 58 parts by weight of rubber particles, 10 parts by weight of carbon fiber, 16 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 38 parts by weight of polypropylene, 46 parts by weight of polyether polyol, 10 parts by weight of polyvinyl alcohol, 6 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3 of polypropylene are added to a mixer for mixing to obtain a first mixing refining; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) obtaining a 1mm anti-skid and wear-resistant layer with an anti-skid pattern on one side through a multi-layer stretching extrusion system and an embossing die.

[0078] A pallet processing process, the steps are as follows:

[0079] 1) Foam core molding: the PP tube is a connecting tube structure. The PP tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the surface of the PP tube is coated with 0.001mm epoxy resin glue.

[0080] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.5mm.

[0081] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0082] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0083] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0084] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0085] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0086] After the above process, the pallet of Comparative Example 1 was obtained.

[0087] Comparative Example 2: Ordinary PET film was used, and other references were made to Example 2, specifically:

[0088] Preparation of a plastic support tube: PP material and PA material are added to the material pipe of the first extruder in a weight ratio of 4:1, and PA material is added to the material pipe of the second extruder; the first extruder and the second extruder are connected to a double-layer co-extrusion head through a head connector, the material in the first extruder is melted and extruded to form an outer layer of the PP tube, the material in the second extruder is melted and extruded to form an inner support layer of the PA tube, the extruded double-layer plastic tube is towed by a traction machine, and then cooled and shaped to obtain a plastic support tube.

[0089] Preparation of anti-skid and wear-resistant layer: 52 parts by weight of rubber particles, 12 parts by weight of carbon fiber, 18 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 40 parts by weight of polypropylene, 48 parts by weight of polyether polyol, 12 parts by weight of polyvinyl alcohol, 8 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3-1 / 2 of polypropylene are added to a mixer for mixing to obtain a first Mixture; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixture in a stirring state to obtain a second mixture; 3) adding the second mixture to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) through a multi-layer stretching extrusion system and an embossing die, obtaining a 1.2 mm anti-skid and wear-resistant layer with an anti-skid pattern on one side.

[0090] A pallet processing process, the steps are as follows:

[0091] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.002mm epoxy resin glue.

[0092] 2) Attach ordinary PET film to the surface of the foam core. The specific processing technology of this step is: glue prepared by resin SV-100:EVA-800=2:1, the temperature is heated to about 150 degrees, and the coating thickness is about 0.15mm.

[0093] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the ordinary PET film to be sucked and wrapped on the foam board after glue coating.

[0094] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0095] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0096] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0097] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0098] After the above process, the pallet of Comparative Example 2 is obtained.

[0099] Comparative Example 3: No anti-skid and wear-resistant layer was used, other reference examples 3:

[0100] Preparation of a plastic support tube: adding PP material and PA material in a weight ratio of 2:1 into the material pipe of the first extruder, and adding PA material into the material pipe of the second extruder; connecting the first extruder and the second extruder into a double-layer co-extrusion head through a head connector, melting the material in the first extruder and extruding the outer layer of the PP tube, melting the material in the second extruder and extruding to form an inner support layer of the PA tube, and pulling the extruded double-layer plastic tube with a pulling machine, and then cooling and shaping it to obtain a plastic support tube.

[0101] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0102] A pallet processing process, the steps are as follows:

[0103] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.005 mm epoxy resin glue.

[0104] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.6mm.

[0105] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0106] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0107] 5) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0108] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0109] After the above process, the pallet of Comparative Example 3 is obtained.

[0110] Comparative Example 4: Using ordinary PP tube and ordinary PET film, other reference examples 1:

[0111] Preparation of anti-skid and wear-resistant layer: 58 parts by weight of rubber particles, 10 parts by weight of carbon fiber, 16 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 38 parts by weight of polypropylene, 46 parts by weight of polyether polyol, 10 parts by weight of polyvinyl alcohol, 6 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3 of polypropylene are added to a mixer for mixing to obtain a first mixing refining; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) obtaining a 1mm anti-skid and wear-resistant layer with an anti-skid pattern on one side through a multi-layer stretching extrusion system and an embossing die.

[0112] A pallet processing process, the steps are as follows:

[0113] 1) Foam core molding: the PP tube is a connecting tube structure. The PP tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; the surface of the PP tube is coated with 0.001mm epoxy resin glue.

[0114] 2) Attach ordinary PET film to the surface of the foam core. The specific processing technology of this step is: glue prepared by resin SV-100:EVA-800=2:1, the temperature is heated to about 150 degrees, and the coating thickness is about 0.5mm.

[0115] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0116] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0117] 5) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0118] 6) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0119] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0120] After the above process, the pallet of Comparative Example 4 is obtained.

[0121] Example 5: Ordinary PP tube and ordinary PET film are used, without anti-skid and wear-resistant layer. Other references are made to Example 1:

[0122] A pallet processing process, the steps are as follows:

[0123] 1) Foam core molding, the PP tube is a connecting tube structure, PP is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; to increase the load-bearing capacity of the core, the surface of the PP tube is coated with 0.001mm epoxy resin glue.

[0124] 2) Attach ordinary PET film to the surface of the foam core. The specific processing technology of this step is: glue prepared by resin SV-100:EVA-800=2:1, the temperature is heated to about 150 degrees, and the coating thickness is about 0.1-3mm.

[0125] 3) Make vacuum holes on the formed foam board to facilitate air suction during the blister process and help the modified PET film after glue coating to be sucked and wrapped on the foam board.

[0126] 4) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0127] 5) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0128] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0129] After the above process, the pallet of Comparative Example 5 is obtained.

[0130] Comparative Example 6: The processing steps are different, no vacuum hole is made, and the rest is referenced to Example 1:

[0131] Preparation of a plastic support tube: adding PP material and PA material in a weight ratio of 3:1 into the material pipe of the first extruder, and adding PA material into the material pipe of the second extruder; connecting the first extruder and the second extruder into a double-layer co-extrusion head through a head connector, melting the material in the first extruder and extruding the outer layer of the PP tube, melting the material in the second extruder and extruding to form an inner support layer of the PA tube, and pulling the extruded double-layer plastic tube with a traction machine, and then cooling and shaping it to obtain a plastic support tube.

[0132] Preparation of modified PET film: 1) adding silicon carbide ethanol grinding solution into a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220-239°C under nitrogen protection, reacting and reflux for 0.2-1 hour to obtain solution A; 2) taking appropriate amounts of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, heating to 200°C under nitrogen protection, dissolving all terephthalic acid, and obtaining solution B; 3) adding solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keeping the reaction for 0.5-1 hour, heating to 255-265°C, carrying out polycondensation reaction under vacuum conditions, and after reacting for 1-2 hours, discharging, drawing, and pelletizing under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) passing the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

[0133] Preparation of anti-skid and wear-resistant layer: 58 parts by weight of rubber particles, 10 parts by weight of carbon fiber, 16 parts by weight of wollastonite, 4 parts by weight of polybrominated diphenyl ether, 20 parts by weight of calcium oxide, 38 parts by weight of polypropylene, 46 parts by weight of polyether polyol, 10 parts by weight of polyvinyl alcohol, 6 parts by weight of polyethylene wax, 20 parts by weight of silane coupling agent, 10 parts by weight of 1,4-cyclohexanedimethanol, and 17 parts by weight of sulfur; the steps are as follows: 1) rubber particles, carbon fiber, wollastonite, and 1 / 3 of polypropylene are added to a mixer for mixing to obtain a first mixing refining; 2) adding the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) adding the second mixed material to an internal mixer, mixing, adding silane coupling agent and sulfur, kneading at high speed and conveying to an open mixer; 4) extruding through a screw extruder and vulcanizing to obtain a wear-resistant and anti-skid plastic material; 5) obtaining a 1mm anti-skid and wear-resistant layer with an anti-skid pattern on one side through a multi-layer stretching extrusion system and an embossing die.

[0134] A pallet processing process, the steps are as follows:

[0135] 1) Foam core molding: the modified plastic support tube is a connecting tube structure. The modified plastic support tube is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to foam it in the mold to form a foam core; the load-bearing capacity of the core is improved. In order to improve the compatibility between the plastic support tube and the PMI foam material, the surface of the plastic support tube is coated with 0.001 mm epoxy resin glue.

[0136] 2) Attach the modified PET film to the surface of the foam core. The specific processing technology of this step is: the glue prepared by the resin SV-100:EVA-800=2:1 is heated to about 150 degrees, and the coating thickness is about 0.5mm.

[0137] 3) High temperature heating blister molding, one-time blister molding or two times, the blister molding temperature is 260-280℃.

[0138] 4) Attaching the anti-skid and wear-resistant layer. The method of attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

[0139] 5) Support foot treatment: The inner part is conical and hollow, and is equipped with a fireproof sealing bag, which releases carbon dioxide gas when encountering high temperature to play a role in fire extinguishing.

[0140] Specifically: the sealed bag is filled with potassium allophanate and / or sodium allophanate, sodium bicarbonate. When the temperature is higher than 200°C, the sealed bag can be burst, and the powder in the sealed bag can quickly release carbon dioxide to control the fire.

[0141] After the above process, the lightweight pallet of Comparative Example 6 is obtained.

[0142] The pallets prepared in Examples 1-4 and Comparative Examples 1-6 were tested for physical and mechanical properties. The pallet standard was: 1200*1000*140mm, and the weight of all pallets was less than 3KG. The results were as follows:

[0143]

[0144] Through the test results of the above implementation methods, it is found that the key steps of the lightweight pallet processing technology of the present invention, as well as the preparation method of the plastic support tube, the preparation method of the modified PET film and the preparation of the anti-slip and wear-resistant layer, and the matching of the various materials play a key role.

[0145] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lightweight pallet processing process, comprising the following steps: 1) Foam core molding, the bracket is a connecting tube structure, the bracket is placed in the core mold, and the PMI foam material to be foamed is added into the core mold to make it foam in the mold to form a foam core; to increase the load-bearing capacity of the core, the bracket is a modified plastic support tube; 2) Attaching a modified PET film to the surface of the foam core. The specific processing technology of this step is: heating the glue prepared by the resin SV-100: EVA-800 = 2:1 to a temperature of 150°C, and the coating thickness is 0.1-3mm; 3) punching a vacuum hole on the formed foam board, the purpose of which is to facilitate air suction during the blister process and help the modified PET film to be wrapped on the foam board after glue coating; 4) high-temperature heating blister molding, one-time blister molding or two-time blister molding, the blister molding temperature is 260-280°C; 5) attaching an anti-slip and wear-resistant layer; 6) supporting foot processing to obtain a lightweight pallet. The modified PET film is prepared by the following method: 1) adding an ethanol grinding solution of silicon carbide to a four-necked bottle, the weight ratio of silicon carbide to ethanol solution is 1:15-18; heating to 220 under nitrogen protection -239℃ reflux for 0.2-1 hour to obtain solution A; 2) take appropriate amount of terephthalic acid and ethylene glycol in a weight ratio of 2-3:1, and heat to 200℃ under nitrogen protection to dissolve all terephthalic acid to obtain solution B; 3) add solution B to solution A, the volume ratio of solution B to solution A is 1:3-8; keep the reaction for 0.5-1 hour, heat to 255-265℃, and carry out polycondensation reaction under vacuum conditions. After reacting for 1-2 hours, discharge, draw and pelletize under nitrogen protection to obtain silicon carbide modified PET composite material pellets; 4) pass the silicon carbide modified PET composite material pellets through a multi-layer stretching extrusion system to obtain a modified PET film.

2. The light pallet processing technology according to claim 1 is characterized in that: The plastic support tube is prepared by: adding PP material and PA material in a weight ratio of 2-5:1 into the material pipe of the first extruder, and adding PA material into the material pipe of the second extruder; connecting the first extruder and the second extruder into a double-layer co-extrusion head through a head connector, melting the material in the first extruder and extruding the outer layer of the PP tube, melting the material in the second extruder and extruding to form the inner support layer of the PA tube, and towing the extruded double-layer plastic tube with a traction machine, and then cooling and shaping it to obtain a plastic support tube.

3. The light pallet processing technology according to claim 2 is characterized in that: The surface of the plastic support tube is coated with 0.0001-0.2mm epoxy resin glue.

4. The light pallet processing technology according to claim 1 is characterized in that: Preparation method of anti-skid and wear-resistant layer: 52-62 parts by weight of rubber particles, 10-12 parts by weight of carbon fiber, 15-18 parts by weight of wollastonite, 2-4 parts by weight of polybrominated diphenyl ether, 18-20 parts by weight of calcium oxide, 35-40 parts by weight of polypropylene, 42-48 parts by weight of polyether polyol, 10-12 parts by weight of polyvinyl alcohol, 5-8 parts by weight of polyethylene wax, 18-20 parts by weight of silane coupling agent, 8-10 parts by weight of 1,4-cyclohexanedimethanol, and 15-17 parts by weight of sulfur; 1) rubber particles, carbon fiber, wollastonite, and 1 / 3-1 / 2 of polypropylene are added into a mixer for mixing to obtain a first mixed material; 2) Add the remaining polypropylene, polyethylene wax, polybrominated diphenyl ether, polyether polyol, polyvinyl alcohol, 1,4-cyclohexanedimethanol and calcium oxide to the first mixed material in a stirring state to obtain a second mixed material; 3) Add the second mixed material to an internal mixer, add a silane coupling agent and sulfur, knead at high speed and then convey to an open mixer; 4) Extrude through a screw extruder and vulcanize to obtain a wear-resistant and anti-skid plastic material; 5) Through a multi-layer stretching extrusion system and an embossing die, obtain a 0.1-5 mm anti-skid and wear-resistant layer with an anti-skid pattern on one side.

5. The light pallet processing technology according to claim 1 is characterized in that: The method for attaching the anti-skid and wear-resistant layer is: coating the side of the anti-skid and wear-resistant layer with the anti-skid pattern with an AB glue mixture, and the AB glue mixture tightly bonds the anti-skid and wear-resistant layer to the PET film on the surface of the foam core.

6. The light pallet processing technology according to claim 1 is characterized in that: The support legs are hollow inside and have fireproof sealing bags.

7. The light pallet processing technology according to claim 6 is characterized in that: The sealed bag contains any one of potassium allophanate and / or sodium allophanate and sodium bicarbonate.

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