An insect attractant board AB glue and its application

Abstract

The invention provides an insect trap AB glue, which consists of component A and component B, wherein component A is formed by free radical emulsion polymerization of styrene, acrylate monomer A and phosphate functional monomer under the action of initiator A and emulsifier A, and component B is formed by free radical emulsion polymerization of styrene, acrylate monomer B and butadiene under the action of initiator B and emulsifier B, and the weight percentage of component A is 30-70%. When the insect trap AB glue of the invention is used, component A is directly applied to the surface of furniture items, and component B is applied after 5-10 minutes. It is convenient to construct, is not picky about the environment, has good affinity with common furniture items such as metal plates, glass, plastic plates, etc., can be used immediately after spraying, and the rubber can be peeled off when discarded.

Description

Technical Field

[0001] The invention relates to the technical field of adhesives, and in particular to an adhesive that can be directly laid on furniture objects such as glass, steel, tiles, plastic parts, etc. for attracting insects. Background Art

[0002] Acrylic emulsion adhesives are currently widely used, such as electronic products, paper-plastic lamination, fabric bonding, pressure-sensitive adhesives, etc., because they are environmentally friendly and pollution-free, do not contain organic solvents, and the raw materials are easily available, they occupy an important position in the adhesive market. At present, there are hot-melt insect adhesives on the market, but their prices are relatively high, and the heat resistance of hot-melt adhesives is not good, which restricts their scope of use; while acrylic emulsion copolymers have good heat resistance and high initial adhesion. Some butadiene soft monomers and some styrene hard monomers are introduced into acrylic emulsions. Butadiene monomers can make the emulsion more adhesive, and the introduction of styrene monomers can improve the emulsion's lasting adhesion. Make the entire emulsion rigid and viscoelastic under the condition of excellent adhesion. Not only can it stick to small flying insects, but it also has good effects on some larger insects such as flies and cotton bollworms. However, the current insect trap board glue has certain requirements for construction materials. It needs to be laid on cardboard or wood to be used. When using, a special place needs to be placed on the plastic board, which is not beautiful enough and the discarded plastic board will pollute the environment.

[0003] Therefore, it is of great practical significance to develop an insect-attracting adhesive that can be directly laid on furniture objects such as glass, steel, tiles, and plastic parts. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an insect attractant board AB glue and a preparation method thereof, so as to solve the above-mentioned defects existing in the prior art.

[0005] The present invention is achieved by adopting the following technical solutions:

[0006] An insect attractant board AB glue is composed of component A and component B, wherein component A is formed by free radical emulsion polymerization of styrene, acrylate monomer A and phosphate functional monomer under the action of initiator A and emulsifier A, and component B is formed by free radical emulsion polymerization of styrene, acrylate monomer B and butadiene under the action of initiator B and emulsifier B, and the weight percentage of component A is 30-70%. Preferably, the weight percentage of component A is 40-60%, and more preferably 45-55%.

[0007] Furthermore, the preparation method of component A comprises the following steps:

[0008] S1. After the reactor is evacuated, part of the emulsifier A, part of the initiator A and an appropriate amount of water are added and mixed, the reaction temperature in the reactor is raised to 60-85°C, part of the styrene monomer is added dropwise, and a free radical emulsion polymerization reaction is started. The reaction time is 2-5 hours, and then the temperature is raised to 70-90°C and kept warm for 0.5-2 hours;

[0009] S2. After the heat preservation is completed, the remaining emulsifier A, initiator A and styrene, as well as the acrylate monomer and the phosphate functional monomer are all added to the reactor, the reaction temperature is controlled at 70-75° C., the reaction is continued for 3-8 hours, and the heat preservation is performed for 1-4 hours;

[0010] S3. After the reaction is completed, the temperature is lowered to room temperature (about 25°C), and the pH value of the emulsion is adjusted to 5-9 with an alkaline substance. After filtering, component A can be obtained;

[0011] The emulsifier A is an anionic emulsifier, and the initiator A is a persulfate initiator.

[0012] Preferably, the emulsifier A is selected from at least one of alkyl sodium sulfate, alkyl sodium sulfonate, alkyl sodium benzene sulfonate, alkyl diphenyl ether sodium disulfonate, alkyl phenol ether ammonium sulfate, and alkyl phenol ether sodium sulfosuccinate. 18 The alkyl group is more preferably C8-C 16 Alkyl, preferably C8-C 14 Sodium alkyl sulfate, C8-C 14 Sodium alkyl sulfonate, C8-C 14 Sodium alkylbenzene sulfonate, C8-C 14 Sodium alkyl diphenyl ether disulfonate, C8-C 14 Alkylphenol ether ammonium sulfate, C8-C 14 At least one of alkylphenol ether sodium sulfosuccinate. As a further preferred embodiment, the alkyl group of the emulsifier A selected in the present invention is dodecyl.

[0013] Preferably, the initiator A is selected from at least one of sodium persulfate, ammonium persulfate and potassium persulfate. As a further preferred embodiment, the initiator A of the present invention is potassium persulfate.

[0014] The acrylic acid ester monomer A is at least one selected from n-propyl acrylate, n-butyl acrylate, n-hexyl acrylate, and n-pentyl acrylate, preferably n-hexyl acrylate.

[0015] The phosphate functional monomer is at least one selected from the group consisting of vinyl dimethyl phosphate, dimethyl-vinyl phosphate, acrylic acid monophosphate, and acrylic acid diphosphate, preferably dimethyl-vinyl phosphate.

[0016] Preferably, in the preparation step of component A, the weight amount of each raw material is as follows: 15-35 parts of styrene, 15-30 parts of acrylate monomer A, 20-50 parts of phosphate functional monomer, 0.5-5 parts of initiator A, and 0.8-2.1 parts of emulsifier A.

[0017] Further preferably, in the preparation step S1 of component A, the amount of emulsifier A added is 20%-90% of the total amount, the amount of initiator A added is 30%-70% of the total amount, and the amount of styrene added is 35%-95% of the total amount.

[0018] The alkaline substance is selected from at least one of alkali metal hydroxides, preferably sodium hydroxide.

[0019] Furthermore, the preparation method of the B component comprises the following steps:

[0020] S1. The reactor is evacuated, part of emulsifier B, part of initiator B and appropriate amount of water are added and mixed, the temperature is raised to 75-85°C, part of styrene monomer and acrylic monomer are added dropwise, and a prepolymerization reaction is started for 30-40 minutes;

[0021] S2, then dropwise add the remaining emulsifier B, initiator B and styrene, and butadiene, control the reaction temperature at 80-90°C, continue the reaction for 3-8 hours, and keep warm for 1-4 hours;

[0022] S3. After the reaction is completed, the temperature is lowered to room temperature (about 25°C), and the pH value of the emulsion is adjusted to 5-9 with an alkaline substance. After filtering, component B can be obtained;

[0023] The emulsifier B is a reactive emulsifier, and the initiator B is a persulfate initiator.

[0024] Preferably, the emulsifier B is selected from at least one of sodium p-styrene sulfonate, sodium 2-acrylamide-2,2-dimethylethanesulfonate, sodium allyl succinic acid alkyl ester sulfonate, sodium acrylamide isopropyl sulfonate, and alkyl acrylic acid-2-ethanesulfonic acid sodium salt. The alkyl in the alkyl acrylic acid-2-ethanesulfonic acid sodium salt is preferably C 10 -C 18 Alkyl, preferably C 12 -C 18 Alkyl acrylic acid-2-ethanesulfonic acid sodium salt. As a further preferred embodiment, the present invention selects emulsifier B as hexadecyl acrylic acid-2-ethanesulfonic acid sodium salt.

[0025] Preferably, the initiator B is selected from at least one of sodium persulfate, ammonium persulfate and potassium persulfate. As a further preferred embodiment, the initiator B of the present invention is sodium persulfate.

[0026] The acrylic acid ester monomer B is at least one selected from n-propyl acrylate, n-butyl acrylate, n-hexyl acrylate, and n-pentyl acrylate, preferably n-hexyl acrylate.

[0027] Preferably, in the preparation step of component B, the weight amounts of the raw materials are as follows: 15-35 parts of styrene, 15-30 parts of acrylate monomer B, 20-45 parts of butadiene, 0.5-5 parts of initiator B, and 0.5-2.3 parts of emulsifier B.

[0028] The alkaline substance is selected from at least one of alkali metal hydroxides, preferably sodium hydroxide.

[0029] Preferably, in the preparation step S1 of component B, the amount of emulsifier B added is 25%-65% of the total amount, the amount of initiator B added is 10%-50% of the total amount, and the amount of styrene added is 20%-70% of the total amount.

[0030] The present invention further provides an application of the insect attractant board AB glue in preparing an insect attractant board, specifically, the component A in the insect attractant board AB glue is directly applied to the surface of furniture items, and the component B is then applied after 5-10 minutes.

[0031] The furniture items include metal sheets, glass, plastic sheets, etc.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1) The adhesives with different properties are synthesized separately by using the method of synthesizing two components separately, so that they can be organically combined through the similar solubility between the adhesives while maintaining their own excellent effects.

[0034] 2) The molecular chain side groups of component A contain a large number of carboxyl and phosphate groups, which can form good affinity with inorganic materials such as glass, tiles, plastic parts, steel, etc., and its glass transition temperature is relatively high. It will gradually harden when laid on the surface of the substrate and can be peeled off with a little external force without leaving any residue.

[0035] 3) Component B needs to be laid on top of component A within 5 to 10 minutes after component A is laid. It has strong viscosity and strong holding power. Strong intermolecular hydrogen bonds will be formed between the two components, and with the help of similar miscible properties, they will be organically combined together.

[0036] In short, component A has good affinity with the inorganic component and is easy to peel off, and is responsible for contacting the substrate. Component B has high viscosity and strong adhesion, and is responsible for sticking to small animals such as flies and mosquitoes. DETAILED DESCRIPTION

[0037] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only used as examples, but are not used to limit the scope of the present invention. Those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalent solutions, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0038] The instruments or raw materials in the embodiments of the present invention that do not indicate the manufacturer are all conventional commercial instruments or raw materials. Among them, emulsifier A is sodium dodecyl sulfonate, emulsifier B is sodium hexadecyl acrylate-2-ethanesulfonic acid salt, initiator A is potassium persulfate, initiator B is sodium persulfate, acrylate monomer A is n-hexyl acrylate, acrylate monomer B is n-hexyl acrylate, phosphate functional monomer is dimethyl-vinyl phosphate, and alkaline substance is sodium hydroxide.

[0039] Unless otherwise mentioned, the detection indicators involved in the embodiments of the present invention are detected by conventional detection methods in the art.

[0040] Example 1

[0041] Component A was prepared by the following method:

[0042] After the reactor was evacuated, 70 g of deionized water, 1.5 g of emulsifier A and 3 g of initiator A were added, the reaction stirring was started and the reaction temperature in the reactor was raised to 60 degrees Celsius, 13 g of styrene monomer was added dropwise, and free radical emulsion polymerization was started. The reaction time was 5 hours, and the reaction temperature was raised to 790 degrees Celsius and kept warm for 0.5 hours;

[0043] After the heat preservation is completed, the remaining 0.3g emulsifier A, 0.5g emulsifier B, 2g initiator A, 5g styrene, 10g acrylate monomer and 5g phosphate functional monomer are all added to the reactor, the reaction temperature is controlled at 75 degrees Celsius, the reaction is continued for 4 hours, and the heat preservation is carried out for 2 hours;

[0044] After the reaction is completed, the temperature is lowered to room temperature (about 25 degrees Celsius), and the pH value of the emulsion is adjusted to 7 with an alkaline substance. After filtering, the insect attractant glue component A can be obtained.

[0045] Component B was prepared by the following method:

[0046] The reactor was evacuated, 80g of deionized water, 1.3g of emulsifier B and 0.9g of initiator B were added, the reaction stirring was started and the temperature of the reactor was raised to 75 degrees Celsius, 10g of styrene monomer and 5g of acrylic acid monomer were added dropwise to start the prepolymerization reaction. The reaction was continued for 40 minutes, and the reaction temperature was raised to 80 degrees Celsius;

[0047] Then, 2 g of emulsifier B, 3.1 g of initiator B, 25 g of styrene and 20 g of butadiene were added dropwise, the reaction temperature was controlled at 80 degrees Celsius, the reaction was continued for 8 hours, and the temperature was kept for 1 hour;

[0048] After the reaction is completed, the temperature is lowered to room temperature (about 25 degrees Celsius), and the pH value of the emulsion is adjusted to 7 with an alkaline substance. After filtering, the insect attractant board glue component B can be obtained.

[0049] Example 2

[0050] Component A was prepared by the following method:

[0051] After the reactor was evacuated, 50 g of deionized water, 0.9 g of emulsifier A and 0.8 g of initiator A were added, the reaction stirring was started and the reaction temperature in the reactor was raised to 75 degrees Celsius, 20 g of styrene monomer was added dropwise, and free radical emulsion polymerization was started. The reaction time was 3 hours, and the reaction temperature was raised to 78 degrees Celsius and kept warm for 1 hour;

[0052] After the heat preservation is completed, the remaining 1.1g emulsifier A, 1.2g initiator A, 5g styrene, 15g acrylate monomer and 17g phosphate functional monomer are all added to the reactor, the reaction temperature is controlled at 75 degrees Celsius, the reaction is continued for 3.5 hours, and the heat preservation is 2 hours;

[0053] After the reaction is completed, the temperature is lowered to room temperature (about 25 degrees Celsius), and the pH value of the emulsion is adjusted to 8 with an alkaline substance. After filtering, the insect attractant board glue component A can be obtained.

[0054] Component B was prepared by the following method:

[0055] The reactor was evacuated, 60 g of deionized water, 0.7 g of emulsifier B and 0.8 g of initiator B were added, the reaction stirring was started and the temperature of the reactor was raised to 80 degrees Celsius, 18 g of styrene monomer and 22 g of acrylic acid monomer were added dropwise to start the prepolymerization reaction. The reaction was continued for 30 minutes, and the reaction temperature was raised to 85 degrees Celsius;

[0056] Then, 1.4 g of emulsifier B, 2.5 g of initiator B, 12 g of styrene and 12 g of butadiene were added dropwise, the reaction temperature was controlled at 85 degrees Celsius, the reaction was continued for 4 hours, and the temperature was kept for 2 hours;

[0057] After the reaction is completed, the temperature is lowered to room temperature (about 25 degrees Celsius), and the pH value of the emulsion is adjusted to 8 with an alkaline substance. After filtering, the insect attractant board glue component B can be obtained.

[0058] Example 3

[0059] Component A was prepared by the following method:

[0060] After the reactor was evacuated, 100 g of deionized water, 0.6 g of emulsifier A and 1.2 g of initiator A were added, the reaction stirring was started and the reaction temperature in the reactor was raised to 70 degrees Celsius, 18 g of styrene monomer was added dropwise, and free radical emulsion polymerization was started. The reaction time was 4 hours, and the reaction temperature was raised to 70 degrees Celsius and kept warm for 2 hours;

[0061] After the heat preservation is completed, the remaining 1.3g emulsifier A, 1.7g initiator A, 16g styrene, 21g acrylate monomer and 19g phosphate functional monomer are all added to the reactor, the reaction temperature is controlled at 70 degrees Celsius, the reaction is continued for 6 hours, and the heat preservation is 1 hour;

[0062] After the reaction is completed, the temperature is lowered to room temperature (about 25 degrees Celsius), and the pH value of the emulsion is adjusted to 9 with an alkaline substance. After filtering, the insect attractant board glue component A can be obtained.

[0063] Component B was prepared by the following method:

[0064] The reactor was evacuated, 95 g of deionized water, 0.8 g of emulsifier B and 1.3 g of initiator B were added, the reaction stirring was started and the temperature of the reactor was raised to 78 degrees Celsius, 12 g of styrene monomer and 18 g of acrylic acid monomer were added dropwise to start the prepolymerization reaction. The reaction was continued for 37 minutes, and the reaction temperature was raised to 82 degrees Celsius;

[0065] Then, 0.8 g of emulsifier B, 2.1 g of initiator B, 21 g of styrene and 14 g of butadiene were added dropwise, the reaction temperature was controlled at 89 degrees Celsius, the reaction was continued for 4 hours, and the temperature was kept for 2 hours;

[0066] After the reaction is completed, the temperature is lowered to room temperature (about 25 degrees Celsius), and the pH value of the emulsion is adjusted to 9 with an alkaline substance. After filtering, the insect attractant board glue component B can be obtained.

[0067] Comparative Example

[0068] The adhesive prepared in Example 1 of Chinese patent CN114524902A.

[0069] The samples prepared in Examples 1-3 and the comparative example were tested for initial adhesion according to the method described in GB / T 4852-2002. The test results are shown in Table 1.

[0070] Table 1 Initial viscosity index of products

[0071] serial number Initial adhesion Water resistance (immersion in water at room temperature) Comparative Example 13 No whitening after 8 hours, initial adhesion does not decrease after drying Example 1 15 No whitening after 8 hours, initial adhesion does not decrease after drying Example 2 14 No whitening after 8 hours, initial adhesion does not decrease after drying Example 3 14 No whitening after 8 hours, initial adhesion does not decrease after drying

[0072] The samples prepared in Examples 1-3 and Comparative Examples were coated on the glass surfaces of the same type and size using a glue coating machine, and the debonding conditions after 15 days and the presence of residues after the adhesive film was peeled off (measured by the residual area) were tested. Among them, Examples 1-3 adopted the method of coating component A first and then coating component B 10 minutes later. The test results are shown in Table 2.

[0073] serial number 15 days to see if it is degummed Is there any residue after peeling? Comparative Example no 15% residual Example 1 no none Example 2 no 1.2% residual Example 3 no none

[0074] It can be seen from the above test results that the AB glue of the insect attractant prepared by the method of the present invention has strong initial adhesion and can be directly coated on the surface of common furniture items such as glass, metal plates, plastic plates, etc. There is no residue of the glue film after peeling off, and it has excellent application prospects.

[0075] It should be understood by those skilled in the art that the above embodiments are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An insect trap AB glue, consisting of component A and component B, wherein component A is formed by free radical emulsion polymerization of styrene, acrylate monomer A and phosphate functional monomer under the action of initiator A and emulsifier A, and component B is formed by free radical emulsion polymerization of styrene, acrylate monomer B and butadiene under the action of initiator B and emulsifier B, and the weight percentage of component A is 30-70%; the insect trap AB glue adopts the method of coating component A first and then coating component B 10 minutes later; the preparation method of component A and component B and the amount of each raw material are as follows: The preparation method of component A comprises the following steps: S1, after the reactor is evacuated, 0.6g of emulsifier A, 1.2g of initiator A and 100g of water are added and mixed, the reaction temperature in the reactor is raised to 70°C, 18g of styrene monomer is added dropwise, and free radical emulsion polymerization is started. The reaction time is 4 hours, and then the temperature is raised to 70°C and kept warm for 2 hours; S2, after the heat preservation is completed, the remaining 1.3g emulsifier A, 1.7g initiator A and 16g styrene, as well as 21g acrylate monomer and 19g phosphate functional monomer are all added to the reactor, the reaction temperature is controlled at 70°C, the reaction is continued for 6 hours, and the heat preservation is 1 hour; S3. After the reaction is completed, the temperature is lowered to room temperature, and the pH value of the emulsion is adjusted to 9 with an alkaline substance. After filtering, component A can be obtained; The emulsifier A is sodium dodecyl sulfonate, the initiator A is potassium persulfate, the acrylate monomer A is n-hexyl acrylate; and the phosphate functional monomer is dimethyl-vinyl phosphate; The preparation method of the B component comprises the following steps: S1, the reactor was evacuated, 0.8g of emulsifier B, 1.3g of initiator B and 95g of water were added and mixed, the temperature was raised to 78°C, 12g of styrene monomer and 18g of acrylic acid monomer were added dropwise, and a prepolymerization reaction was started for 37 minutes; S2, then dropwise add 0.8g emulsifier B, 2.1g initiator B and 21g styrene, and 14g butadiene, control the reaction temperature at 89°C, continue the reaction for 4 hours, and keep warm for 2 hours; S3. After the reaction is completed, the temperature is lowered to room temperature, and the pH value of the emulsion is adjusted to 9 with an alkaline substance. After filtering, component B can be obtained; The emulsifier B is hexadecyl acrylate-2-ethanesulfonic acid sodium salt, the initiator B is sodium persulfate, and the acrylate monomer B is n-hexyl acrylate.

2. The use of the insect attractant board AB glue according to claim 1 in the preparation of insect attractant boards, characterized in that: The component A in the insect attractant AB glue is directly applied to the surface of furniture items, and then the component B is applied after 10 minutes.

3. The use according to claim 2, characterized in that The furniture items include metal sheets, glass, and plastic sheets.