Fly trapping adhesive tape

Abstract

The invention relates to the technical field of fly killing, in particular to a fly trapping adhesive tape which is composed of a polymer base tape and an adhesive layer. The adhesive layer is prepared from the following raw materials in parts by weight: 60-80 parts of grafted modified chloroprene rubber, 40-50 parts of hydroxyl-terminated liquid nitrile rubber, 5-10 parts of molasses, 5-10 parts of a chelate and 800-850 parts of a solvent. The fly-luring adhesive tape prepared by the invention not only has excellent viscosity, but also has extremely strong attraction to flies, and can effectively kill flies and guarantee public health.

Description

Technical Field

[0001] This invention relates to the field of fly control technology, specifically to a fly-attracting tape. Background Technology

[0002] Pest control is a crucial aspect of ensuring public health, agricultural production, and food safety. Flies, in particular, are of great concern due to their rapid reproduction and ability to transmit diseases (such as dysentery and typhoid). Flystick tape, as a physical control tool, is widely used in homes, restaurants, agriculture, and public places due to its advantages of being chemical-free and easy to apply. However, most existing flystick tapes are ineffective at attracting flies and have poor adhesion; once adhered, flies easily escape, making fly control difficult. Summary of the Invention

[0003] Purpose of the invention: In view of the above-mentioned technical problems, the present invention proposes a fly-attracting tape.

[0004] The technical solution adopted is as follows:

[0005] A fly-attracting tape, comprising a polymer base tape and an adhesive layer;

[0006] The adhesive layer is made from the following raw materials in parts by weight:

[0007] 60-80 parts of grafted modified chloroprene rubber, 40-50 parts of hydroxyl-terminated liquid nitrile butadiene rubber, 5-10 parts of molasses, 5-10 parts of chelate, and 800-850 parts of solvent.

[0008] Furthermore, the grafted modified chloroprene rubber is obtained by free radical grafting of chloroprene rubber and a modifying monomer.

[0009] Furthermore, the structural formula of the modified monomer is as follows:

[0010]

[0011] R is a straight-chain or branched alkenyl group.

[0012] Furthermore, the number of carbon atoms in the straight-chain or branched alkenyl group is ≤6.

[0013] Furthermore, the preparation method of the grafted modified chloroprene rubber is as follows:

[0014] Chloroprene rubber is dissolved in a mixed solvent of toluene and ethyl acetate, heated to reflux, a free radical initiator is added, and the modified monomer is dissolved in ethyl acetate and added. After reacting for 1-5 hours, hydroquinone is added, and the mixture is cooled and then distilled under reduced pressure to remove small molecules.

[0015] Furthermore, the mass ratio of the chloroprene rubber to the modified monomer is 1:0.1-0.2.

[0016] Furthermore, the chelate is obtained by reacting phenolic resin and active magnesium oxide.

[0017] Furthermore, the chelate is prepared as follows:

[0018] Add active magnesium oxide to acetone and heat in a water bath at 40-50°C. Stir until it is completely dispersed, then add phenolic resin and triethanolamine. Continue the reaction for 5-10 hours, then remove the water bath, let it stand, filter, and dry.

[0019] Furthermore, the mass ratio of the phenolic resin to the active magnesium oxide is 5-15:1.

[0020] Furthermore, the solvent is composed of cycloalkyl rubber oil and aromatic solvent oil.

[0021] The beneficial effects of this invention are:

[0022] This invention provides a fly-attracting tape, which consists of a polymer base tape and an adhesive layer. Neoprene rubber, a synthetic rubber, serves as the main component of the adhesive, providing basic bonding properties and mechanical strength. Graft modification introduces a fly-attracting ketone-like structure, which not only improves the adhesive properties of the adhesive but also additionally endows the fly-attracting tape with fly-attracting properties, greatly enhancing the fly-killing effect of the fly-attracting tape.

[0023] Hydroxyl-terminated liquid nitrile rubber is a type of liquid rubber with hydroxyl functional groups at the ends of its molecular chains. This allows it to react with other functional groups in the adhesive system (such as dehydrating with phenolic hydroxyl groups in phenolic resins to form ethers), creating a cross-linked network that improves the heat resistance and cohesive strength of the adhesive. It also contains polar hydroxyl groups, cyano groups, and non-polar segments, which improve the compatibility between different components and enhance the uniformity of the adhesive. Molasses contains a large amount of sugar, has a certain fly-attracting effect, and can effectively increase the viscosity and tack of the adhesive, improving its bonding performance. The high activity of activated magnesium oxide can significantly enhance the initial tack and adhesive strength of the adhesive, while also improving transparency. Its large specific surface area and strong reactivity facilitate chelation reactions with phenolic resins, forming a more stable cross-linked structure. The resulting chelate can further improve the cohesive strength and heat resistance of the adhesive.

[0024] The fly-attracting tape prepared by this invention not only has excellent adhesiveness, but also has a strong attraction to flies, which can effectively kill flies and protect public health. Detailed Implementation

[0025] Unless otherwise specified in the examples, the conditions were performed under standard conditions or as recommended by the manufacturer. Reagents or instruments whose manufacturers are not specified are all commercially available products. Techniques not mentioned in this invention refer to existing technologies. Unless otherwise specified, the following examples and comparative examples are parallel experiments, using the same processing steps and parameters.

[0026] Example 1:

[0027] This embodiment provides a fly-attracting tape, which consists of a PET base tape and an adhesive layer;

[0028] The adhesive layer is made of the following raw materials in parts by weight:

[0029] 70 parts of grafted modified chloroprene rubber, 45 parts of hydroxyl-terminated liquid nitrile butadiene rubber, 6 parts of sugarcane molasses, 6 parts of chelate, 200 parts of KN4010 naphthenic rubber oil, and 640 parts of 150# aromatic solvent oil.

[0030] The preparation method of graft-modified chloroprene rubber is as follows:

[0031]

[0032] Under nitrogen protection, 0.15 mol of 4-pentenoic acid, 0.17 mol of thionyl chloride, and 100 mL of toluene were mixed, and 1 drop of DMF was added dropwise as a catalyst. The mixture was heated to reflux for 1 h. Small molecules were removed by vacuum distillation to obtain 4-pentenoyl chloride. Raspberry ketone (0.1 mol) was dissolved in 250 mL of dichloromethane, and 1 mL of pyridine was added. The mixture was cooled to 0 °C in an ice bath. 4-pentenoyl chloride (0.1 mol) was dissolved in 50 mL of dichloromethane and added dropwise, with the addition temperature controlled at ≤5 °C. After the addition was complete, the mixture was brought to room temperature and reacted for 5 h. After the reaction was completed, the reaction solution was poured into ice water, and the organic phase was separated and washed successively with 5% HCl solution, saturated NaHCO3, and water. After drying with anhydrous sodium sulfate, the modified monomer was obtained by vacuum distillation with a yield of 73.6%. ESI-MS (m / z) (M + Theoretical value: 246.31, measured value: 246.66, HPLC purity: 99.2%.

[0033] Add 400 ml of toluene, 200 ml of ethyl acetate mixed solvent, and 100 g of CR244 chloroprene rubber to a flask equipped with a reflux condenser and a stirrer. Stir until dissolved, then heat to reflux. Add the free radical initiator BPO in two portions: first, add 0.2 g of BPO, then slowly add the solution obtained by dissolving 15 g of modified monomer in 200 ml of ethyl acetate dropwise to the flask over approximately 5 minutes. After the addition is complete, stir the reaction for 1 hour. Then add 0.1 g of BPO and stir the reaction for another 4 hours. Finally, add 1 g of hydroquinone to inhibit the polymerization reaction. After cooling, remove small molecules by vacuum distillation.

[0034] The preparation method of chelates is as follows:

[0035] Add 100 ml of acetone and 10 g of active magnesium oxide to a flask equipped with a stirrer. Stir at 300 r / min for 30 min under a water bath heating condition at 45 °C. Then add 100 g of 2402 phenolic resin and 0.5 g of triethanolamine. Continue stirring and react for 8 h. Remove the water bath, let stand for 24 h, and then filter. The obtained product is dried at 80 °C for 24 h.

[0036] The preparation method of the above-mentioned fly-attracting tape is as follows:

[0037] Grafted modified chloroprene rubber, hydroxyl-terminated liquid nitrile rubber, sugarcane molasses, KN4010 naphthenic rubber oil and 150# aromatic solvent oil are mixed and stirred at 800 r / min for 5 h under water bath heating at 45℃. Then, chelates are added and stirring is continued for 1 h to obtain an adhesive. The adhesive is then coated onto PET base tape.

[0038] Example 2:

[0039] The method is essentially the same as in Example 1, except that the adhesive layer is made from the following raw materials in parts by weight:

[0040] 80 parts of grafted modified chloroprene rubber, 50 parts of hydroxyl-terminated liquid nitrile butadiene rubber, 10 parts of sugarcane molasses, 10 parts of chelate, 200 parts of KN4010 naphthenic rubber oil, and 650 parts of 150# aromatic solvent oil.

[0041] Example 3:

[0042] The method is essentially the same as in Example 1, except that the adhesive layer is made from the following raw materials in parts by weight:

[0043] 60 parts of grafted modified chloroprene rubber, 40 parts of hydroxyl-terminated liquid nitrile butadiene rubber, 5 parts of sugarcane molasses, 5 parts of chelate, 200 parts of KN4010 naphthenic rubber oil, and 600 parts of 150# aromatic solvent oil.

[0044] Comparative Example 1:

[0045] It is basically the same as Example 1, except that CR244 chloroprene rubber is used instead of grafted modified chloroprene rubber.

[0046] Comparative Example 2:

[0047] It is basically the same as Example 1, except that no hydroxyl-terminated liquid nitrile rubber is added.

[0048] Comparative Example 3:

[0049] It is basically the same as Example 1, except that ordinary nitrile rubber is used instead of hydroxyl-terminated liquid nitrile rubber.

[0050] Comparative Example 4:

[0051] It is basically the same as Example 1, except that sugarcane molasses is not added.

[0052] Comparative Example 5:

[0053] It is basically the same as Example 1, except that no chelate is added.

[0054] Performance testing:

[0055] Tensile shear strength test: The adhesives in Examples 1-3 and Comparative Examples 1-5 were used as samples and tested according to GB / T7124-2008 standard, with a tensile rate of 20 mm / min.

[0056] Fly attraction performance test: The fly-attracting tapes in Examples 1-3 and Comparative Examples 1-5 were used as samples, with a sample size of 25cm × 18.5cm. The samples were placed 2m above the ground in a poultry farm. The test was conducted simultaneously at 5 test points in the four corners and the center of the farm, as 5 replicates. The final result was the average value. The test was conducted in nine cages. Except for the test samples, all other conditions were the same. The test time started at 10:00 am on July 22, 2025 and ended at 4:00 pm on the same day. The number of flies adhering to the samples was counted.

[0057] The test results are shown in Table 1 below:

[0058] Table 1:

[0059]

[0060]

[0061] As shown in Table 1 above, the fly-attracting tape prepared by the present invention not only has excellent adhesion, but also has a strong attraction to flies, which can effectively kill flies and protect public health.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fly-attracting tape, characterized in that, It consists of a polymer base tape and an adhesive layer; The adhesive layer is made from the following raw materials in parts by weight: 60-80 parts of grafted modified chloroprene rubber, 40-50 parts of hydroxyl-terminated liquid nitrile butadiene rubber, 5-10 parts of molasses, 5-10 parts of chelate, and 800-850 parts of solvent.

2. The fly-attracting tape according to claim 1, characterized in that, The grafted modified chloroprene rubber is obtained by free radical grafting of chloroprene rubber and a modified monomer.

3. The fly-attracting tape according to claim 2, characterized in that, The structural formula of the modified monomer is as follows: R is a straight-chain or branched alkenyl group.

4. The fly-attracting tape according to claim 3, characterized in that, The number of carbon atoms in the straight-chain or branched alkenyl group is ≤6.

5. The fly-attracting tape according to claim 2, characterized in that, The preparation method of the grafted modified chloroprene rubber is as follows: Chloroprene rubber is dissolved in a mixed solvent of toluene and ethyl acetate, heated to reflux, a free radical initiator is added, and the modified monomer is dissolved in ethyl acetate and added. After reacting for 1-5 hours, hydroquinone is added, and the mixture is cooled and then distilled under reduced pressure to remove small molecules.

6. The fly-attracting tape according to claim 5, characterized in that, The mass ratio of the chloroprene rubber to the modified monomer is 1:0.1-0.

2.

7. The fly-attracting tape according to claim 1, characterized in that, The chelate is obtained by reacting phenolic resin and active magnesium oxide.

8. The fly-attracting tape according to claim 7, characterized in that, The chelate is prepared as follows: Add active magnesium oxide to acetone and heat in a water bath at 40-50°C. Stir until it is completely dispersed, then add phenolic resin and triethanolamine. Continue the reaction for 5-10 hours, then remove the water bath, let it stand, filter, and dry.

9. The fly-attracting tape according to claim 7, characterized in that, The mass ratio of the phenolic resin to the active magnesium oxide is 5-15:

1.

10. The fly-attracting tape according to claim 1, characterized in that, The solvent is composed of cycloalkyl rubber oil and aromatic solvent oil.

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