Hunting decoy and its production process

Abstract

The application relates to the field of hunting decoys, and particularly discloses a hunting decoy and a production process thereof. The hunting decoy comprises a hollow hunting model, the surface of the decoy model is provided with a color drawing layer, and the decoy model is filled with foaming glue. The production process of the application is used for manufacturing the decoy model through the steps of blow molding, trimming and punching, oil color drawing, assembling, foaming and cleaning. The hollow decoy model is filled with foaming glue. When people mistakenly judge the hunting decoy as a real prey and shoot at the hunting decoy in the hunting process, the hunting decoy will be perforated. Since the decoy model is filled with foaming glue, the ether bond of polyether polyol and the synergistic effect of modified nano calcium carbonate, modified nano silicon dioxide and modified nano titanium dioxide make the foaming glue have small density, good toughness, strong impact resistance and low-temperature resistance. Even if the hunting decoy is perforated, the hunting decoy is not easy to be brittle and hydrolyzed, so that the hunting decoy is not easy to sink into the water surface, and the hunting decoy is conducive to repeated use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hunting decoys, and more particularly, to a hunting decoy and a production process thereof. BACKGROUND

[0002] With the increasing improvement of people's living standards, the content of outdoor leisure sports is also increasingly rich and wonderful. Hunting is one of the popular leisure sports. At present, there are hunting grounds set up by people in the wild environment, and some hunting animals are bred in the hunting ground for people to hunt.

[0003] In order to attract hunting animals and improve the success rate and fun of hunting, some hunting decoys with different shapes are usually prepared and placed in the wild environment. These hunting decoys are usually made into shapes similar to the shapes of animals that hunting animals are interested in, and are placed in the activity area of hunting animals to attract hunting animals to gather. Common hunting decoys include duck decoys, goose decoys, turkey decoys, etc. The manufacturing process of the hunting decoy is as follows: a decoy body is made by blow molding process using plastic raw materials. The decoy body obtained by blow molding is hollow inside, and the surface of the decoy body is flocked to make a hair feel, and then is painted to show color.

[0004] In the related art, the hunting decoy includes a decoy model. Since the decoy model is made by blow molding process, the decoy model is usually hollow. For duck decoys or goose decoys placed on the water surface, if people make a mistake in the hunting process and mistakenly believe that the hunting decoy is a real prey and shoot it, the hunting decoy will be perforated by the shot and sink into the water surface, which is not convenient for repeated use. SUMMARY

[0005] In order to improve the phenomenon that the hunting decoy sinks into the water surface due to perforation by the shot, and make the hunting decoy reusable, the present application provides a hunting decoy and a production process thereof.

[0006] The hunting decoy provided by the present application adopts the following technical solution:

[0007] In a first aspect, the present application provides a hunting decoy, which adopts the following technical solution:

[0008] A hunting lure includes a hollow lure model with a painted layer on its surface. The lure model is filled with a foam adhesive, which, by weight, comprises the following components: 48-52 parts of polyether polyol, 48-52 parts of isocyanate, 5-10 parts of plasticizer, 3-7 parts of chain extender, 5-10 parts of modified nano-calcium carbonate, 5-10 parts of modified nano-silica, 3-6 parts of modified nano-titanium dioxide, 20-30 parts of chlorinated paraffin, 4-7 parts of foam stabilizer, 2-5 parts of foam leveler, 2-4 parts of catalyst, and 4-6 parts of flame retardant. The polyether polyol is selected from a combination of polyether triol and polyether tetraol in a ratio of 1:(1-3). The isocyanate is selected from one or more of toluene diisocyanate, diphenylmethane diisocyanate, and polymethylene polyphenyl polyisocyanate.

[0009] By adopting the above technical solution, polyether polyol and isocyanate form a highly cross-linked network structure, giving the foam good mechanical properties. The ether bonds of the polyether polyol, along with the synergistic effect of modified nano-calcium carbonate, modified nano-silica, and modified nano-titanium dioxide, contribute to the foam's good toughness, strong impact resistance, and resistance to brittleness. The uniform distribution of modified nano-calcium carbonate, modified nano-silica, and modified nano-titanium dioxide within the foam results in relatively smaller pore sizes, an increase in the number of pores per unit area, and finer pore structure. The modified nano-calcium carbonate and modified nano-silica exhibit better compatibility with the highly cross-linked network structure; therefore, their synergistic effect, combined with the highly cross-linked network structure, improves the foam's toughness and low-temperature resistance. Chlorinated paraffin can affect the foaming rate, improve the tensile strength, elongation at break, and abrasion resistance of the foam, and enhance its processing performance, making the foaming process more stable and beneficial for product production and processing. Foam stabilizers form a micellar structure within the foam, encapsulating the bubbles and preventing gas escape, effectively improving foam stability and extending its lifespan. Foam levelers can disperse rapidly in the cross-linked network, promoting gas dispersion and foam formation. Catalysts ensure stable catalytic reactions. Flame retardants improve the flame retardant effect of the foam, reducing the possibility of fire caused by electrostatic sparks during puncture. The polyether polyol is a combination of polyether triol and polyether tetraol in a ratio of 1:(1-3). The isocyanate is one or more of toluene diisocyanate, diphenylmethane diisocyanate, and polymethylene polyphenyl polyisocyanate, exhibiting good cross-linking effects between the polyether polyol and isocyanate. Therefore, expanded polystyrene has good mechanical properties, good toughness, strong impact resistance, and is not easily brittle. It also has a low density and is not easily hydrolyzed. During hunting, if a hunter misjudges the bait and shoots at it thinking it is real prey, the bait will be punctured. Because expanded polystyrene has a low density, even if punctured, it is not easily brittle or hydrolyzed. Therefore, the bait is less likely to sink and can be reused repeatedly.

[0010] Optionally, the plasticizer is selected as dioctyl sebacate.

[0011] By adopting the above technical solution, the plasticizer selected is dioctyl sebacate. Dioctyl sebacate can react with polyether polyols and isocyanates to play a cross-linking role, which helps to improve the mechanical properties of polyurethane foam, such as tensile strength, elastic modulus and wear resistance. At the same time, it also helps to control the size and distribution of cells, thereby improving the physical properties and appearance quality of foam materials.

[0012] Optionally, the chain extender is dipropylene glycol.

[0013] By adopting the above technical solution, dipropylene glycol, as a chain extender, participates in the reaction process of the foam. Dipropylene glycol can introduce more cross-linking points, which helps to adjust the physical properties of the foam, such as hardness, flexibility and tensile strength.

[0014] Optionally, the modified nano-calcium carbonate is selected from nano-calcium carbonate modified with titanate coupling agent and stearic acid.

[0015] By adopting the above technical solution, the modified nano-calcium carbonate, with titanate coupling agent and stearic acid as modifiers, exhibits good compatibility with polymer molecules. Simultaneously, because titanate and stearic acid can form molecular bridges between calcium carbonate molecules and polymer molecules, the interaction between the resin and calcium carbonate is enhanced, improving the mechanical properties, toughness, and low-temperature resistance of the foam, and reducing the possibility of the foam becoming brittle.

[0016] Optionally, the modified nano-silica is selected from silane-modified nano-silica.

[0017] By adopting the above technical solution, the introduction of silane groups can make the surface of nano-silica particles more easily interact with the highly cross-linked network structure formed by polyether polyol and isocyanate, thereby improving its dispersibility in the cross-linked network structure, reducing particle agglomeration, and effectively improving the mechanical properties and toughness of the foam.

[0018] Optionally, the foam stabilizer may be selected from one or more of polyvinyl alcohol and polyacrylamide in combination.

[0019] By adopting the above technical solutions, polyvinyl alcohol and polyacrylamide can increase the viscosity of foam and reduce its fluidity, thereby achieving a certain foam stabilization effect.

[0020] Optionally, the foam stabilizer is a silicone foam stabilizer.

[0021] By adopting the above technical solution, the silicone foaming agent can make the various components of the foaming agent mix more evenly, thereby making the reaction more complete and the foaming more uniform.

[0022] Optionally, the catalyst is a combination of organobismuth and organozinc.

[0023] By adopting the above technical solution, the catalyst is a combination of organobismuth and organozinc. The combined use of organobismuth and organozinc increases the initial open time and accelerates the subsequent cross-linking and drying. Organobismuth and organozinc are environmentally friendly catalysts with higher catalytic efficiency, resulting in a more environmentally friendly and stable foam.

[0024] Optionally, the preparation process of the foam adhesive includes the following steps:

[0025] Ingredients: Weigh out the polyether polyol, isocyanate, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, modified nano titanium dioxide, chlorinated paraffin, foam stabilizer, foam leveler, catalyst, and flame retardant required for the preparation of the foamed adhesive according to the following weight proportions.

[0026] Mixing: Add polyether polyol, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, and modified nano titanium dioxide to a double planetary mixer, vacuum dehydrate at 108-118℃ for 2-2.5 hours, cool to 40-45℃, and then add flame retardant, chlorinated paraffin, foam leveler, foam stabilizer, catalyst, and isocyanate in sequence. Under vacuum conditions, stir at high speed for 3-5 hours until the mixture is homogeneous.

[0027] By adopting the above technical solution, the foamed adhesive prepared through the ingredient preparation and mixing steps foams rapidly. After curing, the foamed adhesive has good mechanical properties, strong toughness, and is not easy to crack or hydrolyze.

[0028] Secondly, this application provides a production process for hunting bait, employing the following technical solution:

[0029] A production process for the above-mentioned hunting bait includes the following steps:

[0030] Blow molding: The bait model includes a hollow bait model body and hollow bait model accessories. Based on the bait model body and bait model accessories, select several corresponding molds, use a blow molding machine to melt plastic granules to obtain molten plastic, precisely control the blow molding temperature, pressure and airflow speed, and extrude the molten plastic into the shape of the mold by blowing air to obtain the bait model body and bait model accessories required for assembling the bait model;

[0031] Repair and drilling: Polish and repair the rough edges and burrs of the bait model body and bait model accessories to make the surface of the bait model body and bait model accessories smooth. Then drill holes in the bait model body and bait model accessories. The hole position of the bait model body is selected to be at the position where it connects with the bait model accessory to hide the hole.

[0032] Spray painting: Clean the surface of the main body and accessories of the bait model to ensure that the surface of the main body and accessories of the bait model is flat and clean. First, apply a primer. According to the design requirements of the bait model, use a spray gun to evenly spray oil-based paint on the surface of the main body and accessories of the bait model. During the spraying process, it is necessary to control the spraying pressure, spraying distance and angle to ensure that the paint adheres to the surface of the object evenly and consistently. After the spraying is completed, let it stand at a temperature of 70-80℃ for 0.5-2 hours.

[0033] Assembly: Assemble the main body and accessories of the bait model into a bait model;

[0034] Foaming: Control the ambient humidity to 40-70%, use special foaming adhesive to apply the foaming adhesive into the hollow bait model body and hollow bait model accessories. The foaming time is 12-15 minutes, and it is left to stand for 24-28 hours to allow the foaming adhesive to fully cure.

[0035] Cleaning: Clean the surface of the bait model thoroughly to improve its appearance.

[0036] By employing the aforementioned technical solution, bait models are created through steps such as blow molding, drilling, spray painting, assembly, foaming, and cleaning. These models resemble the shapes of animals that prey are interested in, and when placed in the hunting area, they attract prey. During hunting, if hunters mistakenly shoot the bait, mistaking it for real prey, the bait will be punctured. Because the bait model is filled with expanding foam, which has low density, good mechanical properties, high toughness, and strong impact resistance, it is not easily brittle or hydrolyzed even if punctured. Therefore, the hunting bait does not easily sink to the surface, allowing for repeated use.

[0037] In summary, this application has the following beneficial effects:

[0038] 1. Because the surface of the bait model in this application is provided with a painted layer and the bait model is filled with expanding foam, the expanding foam has good mechanical properties due to the highly cross-linked network structure formed by the polyether polyol and isocyanate. The ether bonds of the polyether polyol and the synergistic effect of modified nano-calcium carbonate, modified nano-silica, and modified nano-titanium dioxide make the expanding foam tough, resistant to low temperatures, and have strong impact resistance, making it less brittle. Foam stabilizers, foam levelers, and flame retardants further improve the various properties of the expanding foam.

[0039] 2. In this application, modified nano-calcium carbonate with titanate coupling agent and stearic acid and silane modified nano-silica are preferred. Because modified nano-calcium carbonate with titanate coupling agent and stearic acid and silane modified nano-silica have good compatibility with polymer molecules, the mechanical properties, toughness and low temperature resistance of the foam are improved, and the possibility of foam cracking is reduced.

[0040] 3. The processing method of this application involves blow molding, drilling, spray painting, assembly, foaming, and cleaning to create a bait model. The hollow bait model is filled with expanding foam. During hunting, if a hunter misjudges the bait and shoots at it, the bait will be punctured. Because the bait model is filled with expanding foam, which has low density, good mechanical properties, good toughness, strong impact resistance, and low-temperature resistance, it is not easily brittle or hydrolyzed even if punctured. Therefore, the hunting bait is less likely to sink to the surface, facilitating repeated use. Detailed Implementation

[0041] The following provides a further detailed description of this application.

[0042] Raw material introduction

[0043] The following is a description of the raw materials used in preparation examples 1-3 and comparative examples 1-4.

[0044] Table 1 Raw Material Introduction

[0045]

[0046]

[0047] Preparation Example

[0048] Preparation Example 1

[0049] The expanding foam, by weight, comprises the following components: 48 parts polyether polyol, 52 parts isocyanate, 5 parts plasticizer, 7 parts chain extender, 5 parts modified nano-calcium carbonate, 10 parts modified nano-silica, 3 parts modified nano-titanium dioxide, 30 parts chlorinated paraffin, 4 parts foam stabilizer, 5 parts foam leveling agent, 2 parts catalyst, and 6 parts flame retardant; the polyether polyol is a combination of polyether triol and polyether tetraol in a 1:1 ratio; the isocyanate is a combination of toluene diisocyanate, diphenylmethane diisocyanate, and polymethylene polyphenyl polyisocyanate. The ratio of methyl polyphenyl polyisocyanate is 1:1:2; the plasticizer is dioctyl sebacate, and the chain extender is dipropylene glycol; the modified nano-calcium carbonate is modified with titanate coupling agent and stearic acid, the modified nano-silica is silane-modified nano-silica, and the modified nano-titanium dioxide is silane-modified nano-titanium dioxide; the foam stabilizer is polyvinyl alcohol, and the foam leveler is organosilicon foam leveler; the catalyst is a combination of organobismuth and organozinc, with a ratio of organobismuth to organozinc of 1:2; the flame retardant is a combination of ammonium polyphosphate, expandable graphite, and melamine, with a ratio of ammonium polyphosphate, expandable graphite, and melamine of 1:2:1.

[0050] The preparation process of the above-mentioned foam adhesive includes the following steps:

[0051] Ingredients: Weigh out the polyether polyol, isocyanate, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, modified nano titanium dioxide, chlorinated paraffin, foam stabilizer, foam leveler, catalyst, and flame retardant required for the preparation of the foamed adhesive according to the following weight proportions.

[0052] Mixing: Add polyether polyol, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, and modified nano titanium dioxide to a double planetary mixer, vacuum dehydrate at 108°C for 2.5 hours, cool to 40°C, and then add flame retardant, chlorinated paraffin, foam leveler, foam stabilizer, catalyst, and isocyanate in sequence. Stir at high speed under vacuum for 5 hours until the mixture is homogeneous.

[0053] Preparation Example 2

[0054] The expanding foam, by weight, comprises the following components: 52 parts polyether polyol, 48 parts isocyanate, 10 parts plasticizer, 3 parts chain extender, 10 parts modified nano-calcium carbonate, 5 parts modified nano-silica, 6 parts modified nano-titanium dioxide, 20 parts chlorinated paraffin, 7 parts foam stabilizer, 2 parts foam leveling agent, 4 parts catalyst, and 4 parts flame retardant; the polyether polyol is a combination of polyether triol and polyether tetraol in a 1:3 ratio; the isocyanate is diphenylmethane diisocyanate; and the plasticizer is sebacic acid diisocyanate. Octyl acetate, with dipropylene glycol as the chain extender; modified nano-calcium carbonate using titanate coupling agent and stearic acid as modifiers; modified nano-silica using silane-modified nano-silica; modified nano-titanium dioxide using silane-modified nano-titanium dioxide; foam stabilizer using a combination of polyvinyl alcohol and polyacrylamide, with a polyvinyl alcohol to polyacrylamide ratio of 1:2; foam leveling agent using organosilicon foam leveler, with a catalyst of a combination of organobismuth and organozinc, with an organobismuth to organozinc ratio of 1:0.5; and flame retardant using expandable graphite.

[0055] The preparation process of the above-mentioned foam adhesive includes the following steps:

[0056] Ingredients: Weigh out the polyether polyol, isocyanate, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, modified nano titanium dioxide, chlorinated paraffin, foam stabilizer, foam leveler, catalyst, and flame retardant required for the preparation of the foamed adhesive according to the following weight proportions.

[0057] Mixing: Add polyether polyol, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, and modified nano titanium dioxide to a double planetary mixer, vacuum dehydrate at 118°C for 2 hours, cool to 45°C, and then add flame retardant, chlorinated paraffin, foam leveler, foam stabilizer, catalyst, and isocyanate in sequence. Stir at high speed under vacuum for 3 hours until the mixture is homogeneous.

[0058] Preparation Example 3

[0059] The expanding foam, by weight, comprises the following components: 50 parts polyether polyol, 50 parts isocyanate, 8 parts plasticizer, 5 parts chain extender, 7 parts modified nano calcium carbonate, 8 parts modified nano silica, 4.5 parts modified nano titanium dioxide, 25 parts chlorinated paraffin, 5.5 parts foam stabilizer, 3.5 parts foam leveler, 3 parts catalyst, and 5 parts flame retardant. The polyether polyol is a combination of polyether triol and polyether tetraol, with a ratio of 1:2; the isocyanate is a combination of toluene diisocyanate and diphenylmethane diisocyanate, with a ratio of 1:1; the plasticizer is dioctyl sebacate, and the chain extender is dipropylene glycol; the modified nano-calcium carbonate is modified with titanate coupling agent and stearic acid; the modified nano-silica is silane-modified nano-silica; and the modified nano-titanium dioxide is silane-modified nano-titanium dioxide; the foam stabilizer is polyacrylamide, and the foam leveler is an organosilicon foam leveler; the catalyst is a combination of organobismuth and organozinc, with a ratio of 1:1; and the flame retardant is a combination of ammonium polyphosphate and expandable graphite, with a ratio of 1:1.

[0060] The preparation process of the above-mentioned foam adhesive includes the following steps:

[0061] Ingredients: Weigh out the polyether polyol, isocyanate, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, modified nano titanium dioxide, chlorinated paraffin, foam stabilizer, foam leveler, catalyst, and flame retardant required for the preparation of the foamed adhesive according to the following weight proportions.

[0062] Mixing: Polyether polyol, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, and modified nano titanium dioxide are added to a double planetary mixer and vacuum dehydrated at 113°C for 2.3 hours. After cooling to 42°C, flame retardant, chlorinated paraffin, foam leveler, foam stabilizer, catalyst, and isocyanate are added in sequence. Under vacuum conditions, the mixture is stirred at high speed for 4 hours until homogeneous.

[0063] Preparation of comparative examples

[0064] Preparation of Comparative Example 1

[0065] The difference between Comparative Example 1 and Preparation Example 3 is that the foaming adhesive does not contain modified nano-calcium carbonate.

[0066] Preparation of Comparative Example 2

[0067] The difference between Comparative Example 2 and Preparation Example 3 is that the foaming adhesive does not contain modified nano-silica.

[0068] Preparation of Comparative Example 3

[0069] The difference between Comparative Example 3 and Preparation Example 3 is that the foaming adhesive does not contain modified nano-titanium dioxide.

[0070] Preparation of Comparative Example 4

[0071] The difference between Comparative Example 4 and Example 3 is that the foaming adhesive does not contain modified nano-calcium carbonate, modified nano-silica, or modified nano-titanium dioxide.

[0072] Example

[0073] Example 1

[0074] A hunting lure includes a hollow lure model with a painted layer on its surface and filled with a foaming adhesive prepared in Preparation Example 1.

[0075] The production process of the above-mentioned hunting bait includes the following steps:

[0076] Blow molding: The bait model includes a hollow bait model body and hollow bait model accessories. Based on the bait model body and bait model accessories, select several corresponding molds, use a blow molding machine to melt plastic granules to obtain molten plastic, precisely control the blow molding temperature, pressure and airflow speed, and extrude the molten plastic into the shape of the mold by blowing air to obtain the bait model body and bait model accessories required for assembling the bait model;

[0077] Repair and drilling: Polish and repair the rough edges and burrs of the bait model body and bait model accessories to make the surface of the bait model body and bait model accessories smooth. Then drill holes in the bait model body and bait model accessories. The hole position of the bait model body is selected to be at the position where it connects with the bait model accessory to hide the hole.

[0078] Spray painting: Clean the surface of the main body and accessories of the bait model to ensure that the surface of the main body and accessories of the bait model is flat and clean. First, apply a primer. According to the design requirements of the bait model, use a spray gun to evenly spray oil-based paint on the surface of the main body and accessories of the bait model. During the spraying process, it is necessary to control the spraying pressure, spraying distance and angle to ensure that the paint adheres evenly and consistently to the surface of the object. After the spraying is completed, let it stand at 70℃ for 2 hours.

[0079] Assembly: Assemble the main body and accessories of the bait model into a bait model;

[0080] Foaming: Control the ambient humidity to 40%, use special foaming adhesive to apply the foaming adhesive into the hollow bait model body and hollow bait model accessories. The foaming time is 15 minutes, and let it stand for 24 hours to allow the foaming adhesive to fully cure.

[0081] Cleaning: Clean the surface of the bait model thoroughly to improve its appearance.

[0082] Example 2

[0083] A hunting lure includes a hollow lure model with a painted layer on its surface and filled with a foaming adhesive prepared in Preparation Example 2.

[0084] The production process of the above-mentioned hunting bait includes the following steps:

[0085] Blow molding: The bait model includes a hollow bait model body and hollow bait model accessories. Based on the bait model body and bait model accessories, select several corresponding molds, use a blow molding machine to melt plastic granules to obtain molten plastic, precisely control the blow molding temperature, pressure and airflow speed, and extrude the molten plastic into the shape of the mold by blowing air to obtain the bait model body and bait model accessories required for assembling the bait model;

[0086] Repair and drilling: Polish and repair the rough edges and burrs of the bait model body and bait model accessories to make the surface of the bait model body and bait model accessories smooth. Then drill holes in the bait model body and bait model accessories. The hole position of the bait model body is selected to be at the position where it connects with the bait model accessory to hide the hole.

[0087] Spray painting: Clean the surface of the main body and accessories of the bait model to ensure that the surface of the main body and accessories of the bait model is flat and clean. First, apply a primer. According to the design requirements of the bait model, use a spray gun to evenly spray oil-based paint on the surface of the main body and accessories of the bait model. During the spraying process, it is necessary to control the spraying pressure, spraying distance and angle to ensure that the paint adheres to the surface of the object evenly and consistently. After the spraying is completed, let it stand at 80℃ for 0.5 hours.

[0088] Assembly: Assemble the main body and accessories of the bait model into a bait model;

[0089] Foaming: Control the ambient humidity to 70%, use special foaming adhesive to apply the foaming adhesive into the hollow bait model body and hollow bait model accessories. The foaming time is 12 minutes, and it is left to stand for 28 hours to allow the foaming adhesive to fully cure.

[0090] Cleaning: Clean the surface of the bait model thoroughly to improve its appearance.

[0091] Example 3

[0092] A hunting lure includes a hollow lure model with a painted layer on its surface and filled with a foaming adhesive prepared in Preparation Example 3.

[0093] The production process of the above-mentioned hunting bait includes the following steps:

[0094] Blow molding: The bait model includes a hollow bait model body and hollow bait model accessories. Based on the bait model body and bait model accessories, select several corresponding molds, use a blow molding machine to melt plastic granules to obtain molten plastic, precisely control the blow molding temperature, pressure and airflow speed, and extrude the molten plastic into the shape of the mold by blowing air to obtain the bait model body and bait model accessories required for assembling the bait model;

[0095] Repair and drilling: Polish and repair the rough edges and burrs of the bait model body and bait model accessories to make the surface of the bait model body and bait model accessories smooth. Then drill holes in the bait model body and bait model accessories. The hole position of the bait model body is selected to be at the position where it connects with the bait model accessory to hide the hole.

[0096] Spray painting: Clean the surface of the main body and accessories of the bait model to ensure that the surface of the main body and accessories of the bait model is flat and clean. First, apply a primer. According to the design requirements of the bait model, use a spray gun to evenly spray oil-based paint on the surface of the main body and accessories of the bait model. During the spraying process, it is necessary to control the spraying pressure, spraying distance and angle to ensure that the paint adheres evenly and consistently to the surface of the object. After the spraying is completed, let it stand at 75°C for 1 hour.

[0097] Assembly: Assemble the main body and accessories of the bait model into a bait model;

[0098] Foaming: Control the ambient humidity to 55%, use special foaming adhesive to apply the foaming adhesive into the hollow bait model body and hollow bait model accessories. The foaming time is 13.5 minutes, and it is left to stand for 26 hours to allow the foaming adhesive to fully cure.

[0099] Cleaning: Clean the surface of the bait model thoroughly to improve its appearance.

[0100] Implement comparative

[0101] Implement Comparative Examples 1-4

[0102] The difference between Comparative Examples 1-4 and Example 3 lies in the source of the expanding foam, as detailed in the table below.

[0103] Table 2. Sources of the foaming agent in the hunting baits used in Comparative Examples 1-4

[0104] No. Source of foaming glue Example Comparative Example 1 Preparation of Comparative Example 1 Example Comparative Example 2 Preparation of Comparative Example 2 Example Comparative Example 3 Preparation of Comparative Example 3 Example Comparative Example 4 Preparation of Comparative Example 4

[0105] Performance testing

[0106] The hunting bait was tested using routine shooting tests and frozen shooting tests.

[0107] Routine shooting test: Shoot the hunting baits of Examples 1-3 and Comparative Examples 1-4, so that the bottom and sides of the hunting bait are pierced with two sets of perforations. Then place the hunting bait on the water surface and leave it for 30 days. Observe whether the hunting bait sinks to the water surface, whether the foam in the hunting bait hydrolyzes, and whether the foam in the hunting bait becomes brittle.

[0108] Frozen shooting test: After freezing the hunting baits of Examples 1-3 and Comparative Examples 1-4 at -25°C for 24 hours, the hunting baits of Examples 1-3 and Comparative Examples 1-4 were shot, so that two sets of perforations were made on the bottom and both sides of the hunting bait. The bait model and the foam were observed to see if they were brittle.

[0109] The test results are shown in the table below.

[0110] Table 3. Test Results

[0111]

[0112] Comparing Examples 1-3 with Comparative Example 1, in the conventional shooting tests of Examples 1-3, the hunting bait did not sink to the surface, the foam did not hydrolyze, and the foam did not crack. In the frozen shooting tests of Examples 1-3, neither the bait model nor the foam cracked, indicating that the hunting bait could be reused after freezing and shooting under extreme cold weather conditions. In contrast, in the conventional shooting tests of Comparative Example 1, the hunting bait sank to the surface, the foam cracked, and partially hydrolyzed; in the frozen shooting tests, although the bait model did not crack, the foam did, which was not conducive to reuse. This indicates that modified nano-calcium carbonate had a significant impact on the foam.

[0113] Comparing Examples 1-3 with Comparative Example 2, in the conventional shooting test of Comparative Example 2, the hunting bait sank to the surface of the water, and the foam cracked and partially hydrolyzed; in the frozen shooting test, although the bait model did not crack, the foam cracked, which is not conducive to reuse. This shows that the modified nano-silica has a significant impact on the foam.

[0114] Comparing Examples 1-3 with Comparative Example 3, in the conventional shooting test of Comparative Example 3, the hunting bait sank to the surface of the water, and the foam cracked and partially hydrolyzed; in the frozen shooting test, although the bait model did not crack, the foam cracked, which is not conducive to reuse. This indicates that the modified nano-titanium dioxide has a significant impact on the foam.

[0115] Comparing Examples 1-3 with Comparative Example 4, in the conventional shooting test of Comparative Example 4, the hunting bait sank to the surface, and the foam cracked and partially hydrolyzed. In the frozen shooting test, although the bait model did not crack, the foam cracked, which is not conducive to reuse. This shows that modified nano-calcium carbonate, modified nano-calcium carbonate, and modified nano-titanium dioxide have a significant impact on the foam. The modified nano-calcium carbonate, modified nano-calcium carbonate, and modified nano-titanium dioxide have a synergistic effect, making the foam tough, impact-resistant, not easily brittle, and resistant to low temperatures. The foam of this application has a low density, good mechanical properties, good toughness, strong impact resistance, is not easily brittle, and is resistant to low temperatures. Therefore, when using the hunting bait of this application, if people mistakenly shoot the hunting bait thinking it is real prey, the hunting bait will be punctured by the shot. Because the foam has a low density, even if it is punctured, it is not easily brittle or hydrolyzed. Therefore, the hunting bait is not likely to sink to the surface, which is conducive to the repeated use of the hunting bait.

[0116] The above specific embodiments are merely explanations of this application and are not intended to limit this application. After reading this specification, those skilled in the art can make modifications to this application without contributing any inventive step, but all such modifications should be covered within the protection scope of this application.

Claims

1. A hunting bait, characterized in that, The product includes a hollow bait model, the surface of which is provided with a painted layer. The bait model is filled with a foaming adhesive, which, by weight, comprises the following components: 48-52 parts of polyether polyol, 48-52 parts of isocyanate, 5-10 parts of plasticizer, 3-7 parts of chain extender, 5-10 parts of modified nano-calcium carbonate, 5-10 parts of modified nano-silica, 3-6 parts of modified nano-titanium dioxide, 20-30 parts of chlorinated paraffin, 4-7 parts of foam stabilizer, 2-5 parts of foam leveler, 2-4 parts of catalyst, and 4-6 parts of flame retardant. The polyether polyol is selected from a combination of polyether triol and polyether tetraol, with a ratio of 1:(1-3). The isocyanate is selected from one or more of toluene diisocyanate, diphenylmethane diisocyanate, and polymethylene polyphenyl polyisocyanate.

2. The hunting bait according to claim 1, characterized in that: The plasticizer is dioctyl sebacate.

3. The hunting bait according to claim 1, characterized in that: The chain extender is dipropylene glycol.

4. A hunting bait according to claim 1, characterized in that: The modified nano-calcium carbonate is modified with titanate coupling agent and stearic acid.

5. A hunting bait according to claim 1, characterized in that: The modified nano-silica is selected from silane-modified nano-silica.

6. A hunting bait according to claim 1, characterized in that: The foam stabilizer is selected from one or more of polyvinyl alcohol and polyacrylamide.

7. A hunting bait according to claim 1, characterized in that: The foaming agent is an organosilicon foaming agent.

8. A hunting bait according to claim 1, characterized in that: The catalyst is a combination of organobismuth and organozinc.

9. A hunting bait according to claim 1, characterized in that: The preparation process of the foam adhesive includes the following steps: Ingredients: Weigh out the polyether polyol, isocyanate, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, modified nano titanium dioxide, chlorinated paraffin, foam stabilizer, foam leveler, catalyst, and flame retardant required for the preparation of the foamed adhesive according to the following weight proportions. Mixing: Add polyether polyol, plasticizer, chain extender, modified nano calcium carbonate, modified nano silica, and modified nano titanium dioxide to a double planetary mixer, vacuum dehydrate at 108-118℃ for 2-2.5 hours, cool to 40-45℃, and then add flame retardant, chlorinated paraffin, foam leveler, foam stabilizer, catalyst, and isocyanate in sequence. Under vacuum conditions, stir at high speed for 3-5 hours until the mixture is homogeneous.

10. A production process for a hunting bait according to any one of claims 1 to 9, characterized in that: It includes the following steps: Blow molding: The bait model includes a hollow bait model body and hollow bait model accessories. Based on the bait model body and bait model accessories, select several corresponding molds, use a blow molding machine to melt plastic granules to obtain molten plastic, precisely control the blow molding temperature, pressure and airflow speed, and extrude the molten plastic into the shape of the mold by blowing air to obtain the bait model body and bait model accessories required for assembling the bait model; Repair and drilling: Polish and repair the rough edges and burrs of the bait model body and bait model accessories to make the surface of the bait model body and bait model accessories smooth. Then drill holes in the bait model body and bait model accessories. The hole position of the bait model body is selected to be at the position where it connects with the bait model accessory to hide the hole. Spray painting: Clean the surface of the main body and accessories of the bait model to ensure that the surface of the main body and accessories of the bait model is flat and clean. First, apply a primer. According to the design requirements of the bait model, use a spray gun to evenly spray oil-based paint on the surface of the main body and accessories of the bait model. During the spraying process, it is necessary to control the spraying pressure, spraying distance and angle to ensure that the paint adheres to the surface of the object evenly and consistently. After the spraying is completed, let it stand at a temperature of 70-80℃ for 0.5-2 hours. Assembly: Assemble the main body and accessories of the bait model into a bait model; Foaming: Control the ambient humidity to 40-70%, use special foaming adhesive to apply the foaming adhesive into the hollow bait model body and hollow bait model accessories. The foaming time is 12-15 minutes, and it is left to stand for 24-28 hours to allow the foaming adhesive to fully cure. Cleaning: Clean the surface of the bait model thoroughly to improve its appearance.

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