Special glue for mosquito board with high ultraviolet resistance as well as preparation method and application of special glue

Abstract

The invention relates to the technical field of macromolecules, in particular to special glue for a high-ultraviolet-resistance mosquito board as well as a preparation method and application of the special glue. The preparation raw materials comprise hydrogenated SEBS, polyisobutene, petroleum resin, functionalized naphthenic oil, an anti-ultraviolet agent, an acid amine double-adsorption additive and an antioxidant. The adsorption layer is self-stripped within 24 hours, and the surface energy recovery rate is gt; the insect catching rate is kept 3 times that of a control sample; and the adhesive layer still has viscosity after being subjected to high-temperature water aging resistance for 500 hours, and the preparation process is continuous and free of solvation. And in an outdoor exposure test, the insect catching area proportion is kept stable.

Description

Technical Field

[0001] This invention relates to the field of polymer technology, and in particular to a special adhesive for high UV resistance mosquito traps, its preparation method, and its application. Background Technology

[0002] Mosquito sticky traps are widely used indoors and outdoors for mosquito control in summer and tropical regions. Their core performance depends on the initial tack, holding power, and long-term weather resistance of the adhesive layer. Currently, the most widely used mosquito sticky traps on the market are based on SBS (styrene-butadiene block copolymer), PIB (polyisobutylene), and petroleum resins, with the addition of tackifiers, antioxidants, or UV absorbers to extend their lifespan. However, existing mosquito sticky traps still have the following main problems: Existing adhesives based on SBS or non-hydrogenated SEBS systems contain a large number of unsaturated carbon-carbon double bonds and styrene structures in their main chain. Under UVB (280~315nm) irradiation, they are prone to free radical chain scission and benzene epoxidation reactions, generating quinone chromophores, which can cause problems such as yellowing, cross-linking hardening, and tack reduction.

[0003] Even with the addition of conventional hindered amine light stabilizers (HALS) or ultraviolet absorbers (UV-327, UV-531), their high migration and poor thermal stability still make it difficult to meet the performance requirements under long-term outdoor exposure. Especially under continuous exposure conditions (>60℃, UVB-313), traditional insect repellent generally exhibits failure phenomena such as surface cracking, dripping, and loss of adhesion after 300~400 hours.

[0004] Existing mosquito repellents mostly focus on protection against photoaging, while neglecting the chemical corrosive effects of biological secretions.

[0005] In actual use, mosquitoes secrete saliva, body fluids or excrement after being attached. These secretions usually contain: acidic substances (such as acetic acid, lactic acid, uric acid, etc.), which can trigger acid hydrolysis of the adhesive layer; amine compounds (such as putrescine, cadaverine, polyamine, etc.), which can undergo substitution reactions with hindered amine light stabilizers; and protein and fatty acid residues, which can form a biofilm on the surface, leading to increased surface energy, dust adsorption, and increased loss of stickiness.

[0006] This biochemical composite pollution is particularly noticeable in outdoor high-temperature and high-humidity environments. It causes the adhesive layer to become sticky and deteriorate shortly after trapping mosquitoes, making it prone to dust accumulation and reducing its stickiness by more than 30%, which seriously affects the trapping efficiency and aesthetics.

[0007] Conventional solutions often involve increasing the proportion of petroleum resin or adding low-molecular-weight plasticizers (such as phthalates) to enhance initial tack, but these measures weaken the heat resistance and structural stability of the colloid. Conversely, adding hydrogenated polymers or cross-linked structures will make the colloid too hard, reduce initial tack, and prevent it from effectively trapping insects.

[0008] Therefore, existing technologies generally suffer from the contradiction that sustained adhesion leads to easy aging, while enhanced weather resistance results in loss of adhesion, and a formula that can simultaneously achieve both has not yet been developed. Summary of the Invention

[0009] When insects such as mosquitoes and flies are captured, they release fatty acid esters, amines, and polysaccharide body fluids. These secretions easily form a polar fouling film on the surface of the adhesive layer, reducing subsequent insect-catching efficiency. When used outdoors, dust, pollen, and insect residue can cause surface contamination and viscosity reduction, making it difficult to maintain high-efficiency insect-catching performance in the long term.

[0010] To solve the above-mentioned technical problems, the present invention provides a special adhesive for high UV resistance mosquito traps, the raw materials of which include hydrogenated SEBS, polyisobutylene, petroleum resin, functionalized naphthenic oil, anti-UV agent, acid-amine dual adsorption additive and antioxidant.

[0011] In one embodiment of the present invention, the functionalized naphthenic oil is a hydroxyl- or silane-modified naphthenic oil; the acid-amine dual-adsorption additive is a quaternary ammonium salt-modified siloxane or an acetylated polyamine derivative.

[0012] In one embodiment of the present invention, the UV stabilizer is a hydroxyphenyl triazine or a hindered amine light stabilizer.

[0013] In one embodiment of the present invention, the hydrogenated SEBS, polyisobutylene and petroleum resin are in a weight ratio of 50-70:20-40:5-20.

[0014] In one embodiment of the present invention, the mass ratio of the functionalized naphthenic oil to the UV stabilizer is 3 to 6:1.

[0015] As one embodiment of the present invention, the acid-amine dual adsorption additive includes a polar adsorption component and a hydrophobic adsorption component.

[0016] In one embodiment of the present invention, the hydrophobic adsorption component is alkylsilane-modified micron-sized organosilicon spheres.

[0017] The preparation method of the high UV-resistant mosquito trap adhesive includes: a) Disperse the acid-amine dual-adsorption additive in naphthenic oil; b) Mix and stir with hydrogenated SEBS, polyisobutylene and petroleum resin in steps under temperature control; c) Cooling and encapsulation yields the composite adhesive.

[0018] In one embodiment of the present invention, the dispersion speed in step a) is 3000-6000 rpm, the dispersion time is 15-30 min, and the temperature is controlled at 40±5℃.

[0019] As one embodiment of the present invention, the high UV-resistant mosquito repellent adhesive is used in mosquito repellent adhesives, tent insect repellent films, and outdoor equipment coatings.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects: The dual adsorption system enables the insect secretion adsorption layer to self-peel off within 24 hours, with a surface energy recovery rate of >95%, and the insect trapping rate remains three times that of the control sample. The adhesive layer retains its stickiness after 500 hours of high-temperature water aging, and the preparation process is continuous and solvent-free. In outdoor exposure tests, the insect trapping area ratio remains stable. Detailed Implementation

[0021] The present invention will be further explained below with reference to specific embodiments.

[0022] A special adhesive for high UV resistance mosquito traps is prepared from raw materials including hydrogenated SEBS, polyisobutylene, petroleum resin, functionalized naphthenic oil, UV stabilizer, acid-amine dual adsorption additive, and antioxidant.

[0023] In one embodiment of the present invention, the raw materials for preparation, by weight, include 50-55 parts of hydrogenated SEBS, 20-35 parts of polyisobutylene, 5-12 parts of petroleum resin, 0.5-2 parts of molecular coating agent, 6-12 parts of functionalized naphthenic oil, 0.8-2.0 parts of UV stabilizer, 0.7-4.0 parts of acid-amine dual adsorption additive, and 0.1-1.0 parts of antioxidant.

[0024] As one embodiment of the present invention, the raw materials for preparation, by weight, include 50 parts of hydrogenated SEBS, 30 parts of polyisobutylene, 8 parts of petroleum resin, 1.0 part of molecular coating agent, 7 parts of functionalized naphthenic oil, 1.2 parts of UV stabilizer, 2.0 parts of acid-amine dual adsorption additive (A:B=1.5:1), and 0.8 parts of antioxidant.

[0025] Hydrogenated SEBS Hydrogenated styrene-butene-styrene block copolymer provides a saturated, elastic backbone. Its main chain does not contain easily oxidized allylic or styrene-diene structures, significantly suppressing chain breakage and yellowing under UV radiation; it also facilitates microphase-scale coating / locking of the dispersed phase. It was purchased from Zhejiang Zhongli Synthetic Materials Technology Co., Ltd. (Q5501).

[0026] Polyisobutylene BASF OPPANOL® B10N.

[0027] Polyisobutylene (PIB) offers high initial tack and holding power, remains flexible at low temperatures, and traps insects. PIB can be formulated with petroleum resins / naphthenic oils to adjust viscosity and operating temperature window.

[0028] Petroleum resin Petroleum-based tackifying resins can improve adhesion and adjust the hardness and elasticity of the film. Hydrogenated resins can improve thermal oxidative stability and reduce the risk of yellowing. Petroleum-based tackifying resins form a viscoelastic continuum with PIB; they can also adjust compatibility with functionalized naphthenic oils to help UV stabilizers be evenly distributed in the formulation; however, too much resin can increase brittleness, so a balanced ratio with SEBS / PIB is necessary. Escorez™ 5300, ExxonMobil.

[0029] Functionalized naphthenic oils The functionalized naphthenic oil described in this invention comprises one or more of hydroxyl-modified naphthenic oil, silane-modified naphthenic oil, and a mixture of naphthenic silicone oil.

[0030] Functionalized naphthenic oils promote the distribution of UV stabilizers / molecular coatings in the polymer phase; functionalized sites (OH or Si-OR) provide conditions for subsequent chemical bonding with silane coupling agents or self-cleaning layers, thereby forming an oleophobic layer on the surface. After being miscible with UV stabilizers and molecular coatings in the premixing stage, the UV stabilizers can be stably fixed at the interface of the PIB microphase upon cooling; it can chemically couple with silane-treated nanoparticles to form a hydrophobic / self-cleaning surface layer. Upon absorbing water in a humid and hot environment, it swells, reducing its adhesion to the host colloid interface and thus achieving natural exfoliation.

[0031] Considering mosquito secretions and dust, the functionalized naphthenic oil is a silanol-terminated naphthenic oil. The silanol-terminated naphthenic oil is prepared by terminal silanization and hydrolysis of commercial hydrogenated naphthenic base oil. Specifically, it can be prepared by grafting trimethoxysilane onto hydrogenated naphthenic oil (C15~C25 carbon atoms) and then subjecting it to a controlled hydrolysis reaction, introducing Si-OH functional groups at the end, with a functionality of 1.0~1.8 eq / kg (based on silanol).

[0032] UV protectant BASF Tinosorb® S.

[0033] It co-melts with the molecular coating agent at 150°C and is subsequently locked at the polyisobutylene / cycloalkane oil interface, achieving low migration; in synergy with antioxidants, it can simultaneously inhibit photo-induced and thermally induced oxidation.

[0034] Molecular coating agent Block polyethers or modified polymers containing amino / carboxyl groups are used to encapsulate UV stabilizers and stabilize them at the PIB microphase interface; low-molecular-weight UV stabilizers are encapsulated in a shell that is compatible with PIB, reducing their migration and precipitation, so that the UV stabilizers can function stably at the microphase interface for a long time; they are fully miscible with UV stabilizers, and then interact with PIB / naphthenic oils to form a stable interface when cooled, preventing them from migrating to the surface or precipitating into the external environment.

[0035] The molecular coating agent described in this invention is selected from one of block polyether / polyoxyethylene, fatty acid ester / triglyceride modified molecules, or block siloxane / silane-PEG copolymer.

[0036] In a preferred embodiment of the present invention, the molecular coating agent is a surfactant, specifically Pluronic® F127; its PEO-PPO-PEO triblock structure: the hydrophobic PPO segment can be embedded in the SEBS / PIB / cycloalkane oil backbone, and the hydrophilic PEO segment can coat hydroxyphenyl triazine or HALS UV inhibitors to inhibit migration. It is also compatible with acid-amine dual-adsorption additives, further enhancing the chemical shielding against mosquito secretions; the hydrophobic segment can collaborate with functionalized naphthenic oils to form an oleophobic self-cleaning surface.

[0037] Acid-amine dual adsorption additive The acid-amine dual adsorption additive contains a polar adsorption component A and a hydrophobic adsorption component B.

[0038] The polar adsorption component A can form a weakly polar trapping layer with acidic compounds (such as acetic acid and uric acid) or amine compounds (such as putrescine and cadaverine) in mosquito secretions through electrostatic adsorption, hydrogen bonding, and complexation; preventing acid / amine from penetrating the main adhesive layer and protecting antioxidants and petroleum resin from degradation.

[0039] The polar adsorption component A is selected from one or more of quaternary ammonium salt modified siloxanes, polyvinyl alcohol (PVA), acetylated polyamine derivatives, and aminosilanes; more preferably, aminosilane, Dynasylan®1161EQ.

[0040] Hydrophobic adsorption component B can prevent the penetration of moisture and some polar mosquito secretions, and synergistically forms an interfacial buffer layer with the polar component. The hydrophobic adsorption component B is selected from one or more of alkylsilane-modified micron-sized organosilicon spheres, fluorosilanes, long-chain alkylsilanes (C12~C18), and silane-modified nano-silica gel; more preferably, it is alkylsilane-modified micron-sized organosilicon spheres.

[0041] The preparation steps of the alkylsilane-modified micron-sized organosilicon spheres are as follows: Step 1: Add 100g of micron-sized silica powder to 200g of ethanol. Stir magnetically for 10-15 minutes to fully disperse the silica powder and form a uniform suspension.

[0042] Step 2: Add 3-5g of alkylsilane to 20-30g of deionized water; stir for 5-10 minutes to hydrolyze and form silanol. The water / silane molar ratio should be controlled at 4-6:1.

[0043] Step 3: Slowly add the hydrolyzed silanol solution dropwise to the silicon powder suspension while stirring. Control the reaction temperature at 50℃ and stir for 2 hours.

[0044] Step 4: Transfer the completed reaction suspension to a rotary evaporator and dry it at 60~80℃ for 2~4 hours to remove the solvent.

[0045] The mass ratio of the polar adsorption component A to the hydrophobic adsorption component B is 1:1 to 2:1.

[0046] antioxidants The antioxidants are a mixture of Irganox® 1010 and Irgafos® 168 in a ratio of 3:1.

[0047] The preparation method of the high UV-resistant mosquito trap adhesive in this invention is as follows: (1) Pretreatment Petroleum resin, hydrogenated SEBS, molecular coating agents, and any powders are dried in a vacuum chamber at 60-80°C for 2-4 hours to remove adsorbed moisture and prevent condensation or agglomeration.

[0048] (2) 150℃ premixing section Add the functionalized naphthenic oil, antioxidant, molecular coating agent, and UV stabilizer to the reactor. Begin slow heating and stirring, raising the temperature to 150±2℃ (jacketed heating), and stirring slowly at 200~400 rpm under nitrogen protection. Maintain the temperature at 150℃ for 45~60 minutes.

[0049] (3) Slowly reduce the temperature from 150℃ to 100±5℃ (control the cooling rate at 5~10℃ / min). Add acid-amine dual adsorption additive A and acid-amine dual adsorption additive B to the reactor in portions, while dispersing at 3000~5000 rpm for 15~30 minutes until the adsorbed components are evenly distributed; maintain the temperature at 100±5℃ and stir for 20~30 minutes. (4) Maintain the temperature at 100±5℃; add polyisobutylene and petroleum resin to the reactor in three batches, stirring for 10~15 minutes after each addition to ensure thorough mixing. Continue stirring at 100℃ for 20~30 minutes.

[0050] (5) Degassing: Degas the mixture under vacuum (-0.08MPa) for 5 to 15 minutes; then slowly cool it to 40 to 60°C before filling.

[0051] This invention proposes an adhesive system: a photochemically stable matrix is ​​provided by a saturated framework of hydrogenated SEBS; an oleophobic interface is formed by hydroxyl / silane-modified naphthenic oil; an acid-amine dual-adsorption additive is introduced to actively capture acidic and amine substances in mosquito secretions; an anti-UV agent is stably distributed at the microphase interface in a molecular encapsulation form; the adhesive surface can recover a high contact angle under sunlight or rain, achieving long-term self-cleaning and high insect-trapping efficiency. This fundamentally improves the long-term performance stability and environmental adaptability of mosquito insect adhesives under UV and biological pollution conditions.

[0052] The following detailed description is based on specific embodiments.

[0053] Table 1 Formulations of Examples and Comparative Examples serial number Hydrogenated SEBS Polyisobutylene Petroleum resin Functionalized naphthenic oils Molecular coating agent Acid-amine dual adsorption additive UV protectant antioxidants Example 1 50 30 8 7 1.0 2.0 1.2 0.8 Example 2 50 28 10 7 1 2.0 1.2 0.8 Example 3 52 28 6 8 1.2 2.0 1.2 0.8 Example 4 50 30 8 7 1 2.0 1.5 0.8 Comparative Example 1 50 30 8 7 - 2.0 1.2 0.8 Comparative Example 2 50 30 8 7 1 - 1.2 0.8 Comparative Example 3 50 30 8 7 parts unmodified naphthenic oil 1 2.0 1.2 0.8 Comparative Example 4 50 30 8 7 1 Change to all polar adsorption components A 1.2 0.8 Comparative Example 5 50 30 8 7 1 Change to all hydrophobic adsorption components B 1.2 0.8 Example

[0054] Raw material preparation: Weigh out 50 parts of hydrogenated SEBS, 30 parts of polyisobutylene, 8 parts of petroleum resin, 7 parts of functionalized naphthenic oil, 1.0 part of molecular coating agent, 2.0 parts of acid-amine dual adsorption additive, 1.2 parts of UV stabilizer, and 0.8 parts of antioxidant. The antioxidant is a mixture of Irganox® 1010 and Irgafos® 168 in a ratio of 3:1.

[0055] The molecular coating agent is Pluronic® F127. The functionalized naphthenic oil is a silanol-terminated naphthenic oil.

[0056] The acid-amine dual adsorption additive contains aminosilane and hydrophobic adsorption component B in a mass ratio of 1.5:1.

[0057] The preparation steps of hydrophobic adsorption component B are as follows: Step 1: Add 100g of micron-sized silica powder to 200g of ethanol. Stir magnetically for 10-15 minutes to fully disperse the silica powder and form a uniform suspension.

[0058] Step 2: Add 5g of alkylsilane to 30g of deionized water; stir for 10 minutes to hydrolyze and form silanol. The water / silane molar ratio should be controlled at 5:1.

[0059] Step 3: Slowly add the hydrolyzed silanol solution dropwise to the silicon powder suspension while stirring. Control the reaction temperature at 50℃ and stir for 2 hours.

[0060] Step 4: Transfer the completed reaction suspension to a rotary evaporator and dry it at 60~80℃ for 3 hours to remove the solvent.

[0061] (1) Pretreatment Petroleum resin, hydrogenated SEBS, molecular coating agents, and any powders are dried in a vacuum chamber at 60-80°C for 2-4 hours to remove adsorbed moisture and prevent condensation or agglomeration.

[0062] (2) 150℃ premixing section Add the functionalized naphthenic oil, antioxidant, molecular coating agent, and UV stabilizer to the reactor. Begin slow heating and stirring, raising the temperature to 150±2℃ (jacketed heating), and stirring slowly at 200~400 rpm under nitrogen protection. Maintain the temperature at 150℃ for 45~60 minutes.

[0063] (3) Slowly reduce the temperature from 150℃ to 100±5℃ (control the cooling rate at 5~10℃ / min). Add acid-amine dual adsorption additive A and acid-amine dual adsorption additive B to the reactor in portions, while dispersing at 3000~5000 rpm for 15~30 minutes until the adsorbed components are evenly distributed; maintain the temperature at 100±5℃ and stir for 20~30 minutes. (4) Maintain the temperature at 100±5℃; add polyisobutylene and petroleum resin to the reactor in three batches, stirring for 10~15 minutes after each addition to ensure thorough mixing. Continue stirring at 100℃ for 20~30 minutes.

[0064] (5) Degassing: Degas the mixture under vacuum (-0.08MPa) for 5 to 15 minutes; then slowly cool it to 40 to 60°C before filling.

[0065] The preparation steps of Examples 2-4 and Comparative Examples 1-5 are the same as those of Example 1, except that the proportions of each group are adjusted according to Table 1.

[0066] Performance testing 1. Adhesion test According to GB / T2792-2014 "Test Method for 180° Peel Strength of Pressure Sensitive Adhesive Tape", stainless steel plate is used as the substrate and the peel rate is 300 mm / min.

[0067] 2. Holding force test According to GB / T4851-2014 "Test Method for Holding Power of Pressure-Sensitive Adhesive Tape", the slip distance (mm) of the test strip is measured under the condition of 25℃×24h.

[0068] 3. Ultraviolet aging test The sample was prepared into a standard sample sheet (0.5 mm thick) and placed in a UVB-313 ultraviolet lamp box (irradiance 0.8 W / m²). 2 ), continuously irradiated at 60℃; periodically sampled and compared the viscosity change rate (rotational viscometer test).

[0069] 4. Damp heat aging test Referring to GB / T1695-2005 "Test Method for Hot Air Aging of Rubber", the rubber was aged at 85℃ and 85%RH for 14 days, and the changes in appearance and adhesion retention rate were observed.

[0070] 5. Surface Energy Recovery Test Surface energy was calculated using the contact angle measurement method (deionized water and diiodomethane); the rate of change of surface energy before and after damp heat aging was also recorded.

[0071] Sample preparation: Coat the colloid onto a mirror stainless steel or PET film substrate, control the dry film thickness to 0.5mm, and cut it into small pieces ≥25×25mm.

[0072] Equilibration treatment: The sample was equilibrated at 23±2℃ and 50%RH for ≥24h.

[0073] State division Initial (I): Uncontaminated original sample; Contamination (C): Obtained by treating simulated secretions, dripping and air drying; After self-cleaning (R): After the contaminated sample is subjected to natural wind and rain to simulate the "self-cleaning" mechanism, it is tested again after the surface is dry.

[0074] The static contact angle was tested (2 μL each of deionized water and diiodomethane, read after 5 s). The surface energy dispersion and polar components were determined using the Owens-Wendt method, and the total surface energy was calculated. The surface energy recovery rate was then calculated.

[0075] 6. Evaluation of tactile feel and residual adhesiveness A blind human evaluation method (10 people assessing) was used, and scores were given based on flexibility, stickiness, and degree of residue.

[0076] Table 2 Test results for tests 1-6 Test Project Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Adhesion (N / 25mm) 22.8 23.4 24.2 21.9 12.5 16.3 15.8 14.6 13.9 Holding force (25℃×24h, mm) 0.4 0.6 0.5 0.5 3.2 1.8 2.1 2.8 3 Adhesion retention rate after 500 hours of UVB aging (%) 85.2 82.4 88.1 92 46.5 59.3 57.1 52.4 50.1 Color difference ΔE (UVB 500h) 1.6 1.9 1.4 1.2 4.5 3.6 3.9 4.2 4.3 Surface energy recovery rate (%) 96.2 94.1 97.5 95.3 72.4 81.3 79.9 75.6 74.3 Appearance after damp heat aging (85℃ / 85%RH, 14d) No precipitation No precipitation No precipitation No precipitation There is precipitation There is precipitation Microprecipitation Microprecipitation There is precipitation Touch / Residual Adhesive Flexible and leaves no residue Slightly hard, no glue residue Smooth and residue-free Slightly slippery, no adhesive residue Hard, residual glue Sticky, residue Slightly sticky Sticky Slightly sticky Test Project 7. Insect catching rate A 25×30cm plastic sheet was hung outdoors (in summer, temperature 30±5℃, humidity 60%±10%), and the number of insects (mosquitoes, flies, moths, etc.) that were trapped were recorded daily, and the cumulative area of ​​insect trapping was calculated.

[0077] 8. Flowability The adhesive-coated substrate (PET film) is suspended vertically and the displacement distance of the adhesive edge is observed in a 50°C constant temperature chamber.

[0078] 9. Resistance to yellowing After being placed in an 85%RH humidity chamber for 168 hours, the results are rated according to GB / T 2409-2014 (Level 1: Severe yellowing; Level 5: No change). 10. Initial bonding time The steel ball rolling method (GB / T 4852-2002) records the time it takes for a steel ball with a diameter of 11 mm to come to a complete stop.

[0079] 11. Water resistance at room temperature Immerse in a 35℃ constant temperature water bath and record the time it takes for the adhesive layer to completely fail.

[0080] 12. High-temperature water resistance Immerse in a 70℃ constant temperature water bath and record the time it takes for the adhesive layer to completely fail.

[0081] Table 3 shows the test results for tests 8-12. Test Project Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Flowability mm / h 0.08 0.09 0.07 0.08 0.45 0.32 0.4 0.5 0.48 Yellowing resistance 5 5 5 5 2 3 3 2 2 Initial bonding time s 20 22 19 21 35 28 30 32 33 Water resistance at room temperature d 155 148 160 152 60 110 105 80 75 High temperature water resistance h 500 480 510 495 120 220 200 150 140 Table 4 shows the test results for Test 7. Test Project Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Viscosity retention rate after 56 days of outdoor exposure (%) 85 82 87 84 40 55 50 45 43 56-day outdoor exposure insect trapping rate % 80 78 83 79 25 35 30 28 27 Description of the condition of the outdoor exposed adhesive layer (56 days) Maintain stickiness and prevent cracking Maintain stickiness and prevent cracking Maintain stickiness and prevent cracking Maintain stickiness and prevent cracking Minor cracks and precipitation appeared Sticky and with localized cracks Sticky Localized microcracks Localized microcracks The adhesive layer provided by this invention achieves excellent long-term adhesion, self-cleaning properties, UV resistance, and humid heat stability through a rationally designed composition and microphase structure. First, hydrogenated SEBS forms a saturated elastic framework in the adhesive layer, reducing the risk of photochemical degradation and yellowing. Polyisobutylene and petroleum resin form a viscoelastic continuum, improving initial tack and holding power, while simultaneously regulating film hardness to prevent flow or cracking. Functionalized naphthenic oil and molecular coating agents are uniformly distributed at the microphase interface, forming a stable microstructure that further enhances structural integrity and UV resistance under high temperature and humidity. Second, acid-amine dual-adsorption additives form a dual-adsorption layer on the surface, capturing acidic or amine contaminants, while hydrophobic components prevent the penetration of moisture and polar contaminants, thus achieving natural contaminant removal, self-cleaning, and rapid surface energy recovery. Third, UV stabilizers and antioxidants are fixed at the microphase interface, synergistically inhibiting free radical generation with the hydrogenated SEBS framework, enabling the adhesive layer to maintain high adhesion, low yellowing, and stability even under continuous UV irradiation and high-temperature aging conditions. Finally, the synergistic effect of microphase structure and surface chemical regulation enables the adhesive layer to maintain high adhesion and insect-trapping efficiency even under complex environments such as long-term outdoor exposure, rain, humidity, heat, and contact with pollutants, while also possessing self-cleaning capabilities. Through the above structural design and component optimization, this invention not only extends the service life of the adhesive layer but also significantly improves its environmental adaptability and stability, demonstrating the comprehensive advantages of the technical solution of this invention.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special adhesive for high UV resistance mosquito traps, characterized in that, Its raw materials include hydrogenated SEBS, polyisobutylene, petroleum resin, functionalized naphthenic oil, UV stabilizer, acid-amine dual adsorption additive, and antioxidant.

2. The special adhesive for high UV resistance mosquito traps according to claim 1, characterized in that, The functionalized naphthenic oil is a hydroxyl- or silane-modified naphthenic oil; the acid-amine dual-adsorption additive is a quaternary ammonium salt-modified siloxane or an acetylated polyamine derivative.

3. The special adhesive for high UV resistance mosquito traps according to claim 1, characterized in that, The UV stabilizer is a hydroxyphenyl triazine or a hindered amine light stabilizer.

4. The special adhesive for high UV resistance mosquito traps according to claim 1, characterized in that, The hydrogenated SEBS, polyisobutylene, and petroleum resin are present in a weight ratio of 50–70: 20–40: 5–20.

5. The special adhesive for high UV resistance mosquito traps according to claim 1, characterized in that, The mass ratio of the functionalized naphthenic oil to the UV stabilizer is 3 to 6:

1.

6. The special adhesive for high UV resistance mosquito traps according to claim 1, characterized in that, The acid-amine dual adsorption additive includes a polar adsorption component and a hydrophobic adsorption component.

7. The special adhesive for high UV resistance mosquito traps according to claim 6, characterized in that, The hydrophobic adsorption component is alkylsilane-modified micron-sized organosilicon spheres.

8. The preparation method of a high UV-resistant mosquito trap adhesive according to claim 1, characterized in that, Preparation methods include: a) Disperse the acid-amine dual-adsorption additive in naphthenic oil; b) Mix and stir with hydrogenated SEBS, polyisobutylene and petroleum resin in steps under temperature control; c) Cooling and encapsulation yields the composite adhesive.

9. The method for preparing a high UV-resistant mosquito trap adhesive according to claim 8, characterized in that, In step a), the dispersion speed is 3000-6000 rpm, the dispersion time is 15-30 min, and the temperature is controlled at 40±5℃.

10. The special adhesive for high UV resistance mosquito traps according to claim 1, characterized in that, Used in mosquito repellent adhesives, tent insect repellent films, and coatings for outdoor equipment.