Preparation method and application of liquid traceless glue

Abstract

The invention relates to the field of liquid traceless glue, and particularly discloses a preparation method and application of liquid traceless glue, a first component and a second component are prepared, the first component and the second component are mixed and reacted to obtain mother liquor, and the mother liquor is diluted to obtain the finished product diluted formula liquid traceless glue. The liquid traceless glue has the beneficial effects that the liquid traceless glue prepared by the preparation method is traceless in excessive glue, low in dosage, high in brushing speed, labor-saving, cost-saving, high in efficiency, high in quality and high in adhesion degree.

Description

Technical Field

[0001] The invention relates to the liquid traceless adhesive industry, in particular to a preparation method and application of the liquid traceless adhesive. Background Art

[0002] Sole MD is a general term for MODEL or PHYLON. PHYLON is a sole material, generally used for making shoe midsoles. First, a mixed substance is made by heating and compressing EVA foam. The treated sole is coated with liquid traceless glue, dried, and finally pressed by a press.

[0003] However, in the process of preparing the soles, there are many problems with liquid seamless glue, which makes its viscosity not strong enough. Even after drying and pressing, the bonding between the soles and other parts (such as uppers or insoles) may not be strong enough, and it is easy to come apart during daily wear and exercise. In view of the above problems, there is an urgent need to develop a preparation method and application of liquid seamless glue. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing a liquid traceless adhesive and its application, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A method for preparing a liquid traceless adhesive, S01: preparing a first component from the following raw materials in parts by weight, wherein the composition and weight ratio of the first component specifically include:

[0007]

[0008] S02: Prepare a second component by using the following raw materials in parts by weight, wherein the composition and weight ratio of the second component specifically include:

[0009]

[0010] S03: Mix the first component and the second component in the following weight ratio to obtain a mother solution, wherein the composition and weight ratio of the mother solution specifically include:

[0011]

[0012] S04: diluting the mother liquid to obtain liquid traceless adhesive, wherein the composition and weight ratio of the liquid traceless adhesive specifically include:

[0013]

[0014] Compared with the prior art, the beneficial effects of the present invention are: the liquid traceless glue prepared by the preparation method has no overflow, low dosage, fast brushing speed, labor saving, cost saving, high efficiency, high quality and high adhesion. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] In one embodiment of the present invention:

[0017] A method for preparing liquid traceless adhesive comprises the following steps:

[0018] S01: Prepare a first component by using the following raw materials in parts by weight, wherein the composition and weight ratio of the first component specifically include:

[0019]

[0020] S02: Prepare a second component by using the following raw materials in parts by weight, wherein the composition and weight ratio of the second component specifically include:

[0021]

[0022]

[0023] S03: Mix the first component and the second component in the following weight ratio to obtain a mother solution, wherein the composition and weight ratio of the mother solution specifically include:

[0024]

[0025] S04: diluting the mother liquid to obtain liquid traceless adhesive, wherein the composition and weight ratio of the liquid traceless adhesive specifically include:

[0026]

[0027] In one embodiment of the present invention:

[0028] The preparation process of the first component specifically includes:

[0029] S011: Check and confirm that the reactor is clean and operating normally;

[0030] S011: Add 18-20 parts of polyester polyol, heat to 120℃ and melt, then start stirring at medium speed, and vacuum for one hour to remove moisture;

[0031] S012: Add 15-20 parts of solvent toluene, adjust the speed to 30RPM, control the temperature at 75-85°C, add 0.1-0.3 parts of chain extender (TMPA, 1.3 butanediol, neopentyl glycol, ethylene glycol), 0.04-0.08 parts of isocyanate trimer, 1.4-1.7 parts of isocyanate HDI, 0.002-0.005 parts of catalyst in sequence, and start the reaction;

[0032] S013: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 5-10 parts of solvent butanone and 0.01-0.04 parts of part of the chain extender (ETA, BDO) to continue the reaction;

[0033] S014: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 5-10 parts of solvent toluene and 1.0-1.3 parts of part of the chain extender (HQEE, BDO) to continue the reaction;

[0034] S015: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 10-20 parts of solvent DMC and continue the reaction;

[0035] S016: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, and when the current value reaches the specified value, add solvent DMC, 15-25 parts of butanone and 0.03-0.05 parts of terminator (HDO) to terminate the reaction and keep warm for more than one hour;

[0036] S017: After the heat preservation is completed, the temperature is lowered to below 50°C, and 20-25 parts of solvent butanone, ethyl acetate, and DMC are added and stirred at medium speed to obtain the first component.

[0037] In one embodiment of the present invention:

[0038] 7. The preparation process of the second component specifically includes:

[0039] S021: Check and confirm that the reactor is clean and operating normally;

[0040] S022: Add 18-20 parts of polyester polyol (PE-2708), heat to 120℃ and melt, then start stirring at medium speed, and vacuum for one hour to remove moisture;

[0041] S023: Add 10-20 parts of solvent toluene, adjust the speed to 30RPM, control the temperature at 75-85°C, and add 0.03-0.1 parts of chain extender (TMPA, BDO), 0.02-0.05 parts of isocyanate trimer, 1.1-1.5 parts of isocyanate HDI, 0.002-0.005 parts of catalyst, and 0.001-0.003 parts of stabilizer in sequence to start the reaction;

[0042] S024: Observe the reaction state and the change of the equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 3-8 parts of solvent butanone and 0.005-0.015 parts of a partial chain extender (ETA) to continue the reaction;

[0043] S025: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 5-10 parts of solvent toluene and 0.05-0.1 parts of part of the chain extender (HDO, BDO), react for 10 minutes, add 0.1-0.3 parts of isocyanate HDI, and continue the reaction;

[0044] S026: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 7-15 parts of solvent toluene and 0.03-0.07 parts of part of the chain extender (HDO, BDO) to continue the reaction;

[0045] S027: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90℃, and when the viscosity of the reactant rises and the current value reaches the specified value, add ethyl acetate solvent, 7-15 parts of butanone and 0.001-0.005 parts of some chain extenders (HDO, BDO) and continue the reaction for 40 minutes;

[0046] S028: Add 15-25 parts of solvent butanone and ethyl acetate and keep warm for 1-2 hours;

[0047] S029: After the heat preservation is completed, 3-8 parts of acrylic acid monomer (HEMA, MMA) are added and the temperature is raised to 80°C;

[0048] After the temperature of S0210 reaches 80℃, add 0.03-0.08 parts of initiator BPO to react, and keep the reaction temperature at 80-90℃. Pay attention to the reaction state and the change of equipment current;

[0049] S0211: react for 4-5 hours, when the viscosity of the reactant increases and the current value reaches the specified value, add 0.1-0.4 parts of terminator (BHT) to terminate the reaction;

[0050] S0212: Cool down to below 50°C and add 5-10 parts of solvent butanone and ethyl acetate, stir evenly at medium speed to obtain the second component.

[0051] In one embodiment of the present invention:

[0052] The preparation process of the mother solution specifically includes:

[0053] S031: Check and confirm that the reactor is clean and operating normally;

[0054] S032: Add 20-40 parts of the first component, 30-50 parts of the second component, 2-8 parts of acrylic acid monomer (TMPTA, AA, HDDA), and heat to 80°C;

[0055] S033: After the temperature reaches 80°C, add 0.01-0.04 parts of initiator BPO to react, and keep the reaction temperature at 80-90°C. Pay attention to the reaction state and the change of equipment current;

[0056] S034: After 1 hour of reaction, add 0.01-0.04 parts of initiator BPO again for reaction, keep the reaction temperature at 80-90℃, and observe the reaction state and equipment current changes;

[0057] S035: react for 4-5 hours, when the viscosity of the reactant increases and the current value reaches the specified value, add 0.1-0.4 parts of terminator (BHT) to terminate the reaction;

[0058] S036: Cool down to below 50°C, add 25-40 parts of solvent acetone, ethyl acetate and methyl acetate, stir evenly at medium speed to obtain mother liquor.

[0059] In one embodiment of the present invention: the preparation process of the liquid traceless adhesive specifically includes:

[0060] S041: Check and confirm that the high-speed dispersion kettle is clean and operating normally;

[0061] S042: Add 50-70 parts of solvent toluene, butanone, acetone, ethyl acetate, methyl acetate and 30-50 parts of mother liquor in sequence, and start stirring;

[0062] S043: Add 0.5-1.5 parts of emulsified matting agent and disperse at high speed for 1-2 hours;

[0063] S044: Add 0.4-2.0 parts of tackifying resin and 0.005-0.05 parts of other additives, and disperse at high speed for 6-8 hours until completely dissolved;

[0064] S045: Add 0-10 parts of butanone and acetone to adjust the viscosity and solid content to within the specified standard range to obtain liquid traceless glue.

[0065] The performance of the shoe soles prepared in the above embodiment was tested, and the test results are as follows

[0066] Table 1. Performance test results

[0067]

[0068] The working principle of the present invention is as follows: 18-20 parts of polyester polyol are added, the temperature is raised to 120°C for melting, stirring is started, stirring is performed at a medium speed, and water is removed by vacuuming for one hour, 15-20 parts of solvent toluene are added, the rotation speed is adjusted to 30RPM, the temperature is controlled at 75-85°C, 0.1-0.3 parts of partial chain extenders (TMPA, 1.3 butanediol, neopentyl glycol, ethylene glycol), 0.04-0.08 parts of isocyanate trimer, and isocyanate HDI are added in sequence. 1.4-1.7 parts, catalyst 0.002-0.005 parts, start the reaction, observe the reaction state and equipment current changes, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 5-10 parts of solvent butanone and part of the chain extender (ETA, BDO) 0.01-0.04 parts, continue the reaction, observe the reaction state and equipment current changes, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 5-10 parts of solvent toluene and part of the chain extender (HQEE, BDO) 1.0-1.3 parts , continue the reaction, observe the reaction state and the change of equipment current, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 10-20 parts of solvent DMC, continue the reaction, observe the reaction state and the change of equipment current, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 15-25 parts of solvent DMC, butanone and 0.03-0.05 parts of terminator (HDO) to terminate the reaction and keep warm for more than one hour. After the insulation is completed, cool down to below 50℃ and add solvent butanone, ethyl acetate, DMC20-25 Add 18-20 parts of polyester polyol (PE-2708), heat to 120℃ and melt, then start stirring, stir at medium speed, and remove moisture by vacuum for one hour, add 10-20 parts of solvent toluene, adjust the speed to 30RPM, control the temperature at 75-85℃, add 0.03-0.1 parts of chain extender (TMPA, BDO), 0.02-0.05 parts of isocyanate trimer, 1.1-1.5 parts of isocyanate HDI, 0.002-0.005 parts of catalyst, 0.001-0. 003 parts to start the reaction, observe the reaction state and the change of equipment current, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 3-8 parts of solvent butanone and 0.005-0.015 parts of part of chain extender (ETA), continue the reaction, observe the reaction state and the change of equipment current, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 5-10 parts of solvent toluene and 0.05-0.1 parts of part of chain extender (HDO, BDO), react for 10 minutes, add 0.1-0.3 parts, continue the reaction, observe the reaction state and the change of equipment current, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add 7-15 parts of solvent toluene and 0.03-0.07 parts of part of chain extender (HDO, BDO), continue the reaction, observe the reaction state and the change of equipment current, keep the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, when the current value reaches the specified value, add ethyl acetate, 7-15 parts of butanone and 0.001-0.005 parts of part of chain extender (HDO, BDO) to continue the reaction for 40 minutes, add solvent Ingredients: butanone, ethyl acetate, 15-25 parts, keep warm for 1-2 hours, after the insulation is completed, add 3-8 parts of acrylic acid monomer (HEMA, MMA), raise the temperature to 80℃, after the temperature reaches 80℃, add initiator BPO 0.03-0.08 parts for reaction, the reaction temperature is maintained at 80-90℃, pay attention to observe the reaction state and equipment current changes, react for 4-5 hours, when the viscosity of the reactant rises and the current value reaches the specified value, add terminator (BHT) 0.1-0.4 parts to terminate the reaction, cool down to below 50℃, add solvent butanone, ethyl acetate, 5-10 parts, stir at medium speed After the mixture is homogenized, the second component is obtained; 20-40 parts of the first component, 30-50 parts of the second component, and 2-8 parts of acrylic acid monomer (TMPTA, AA, HDDA) are added, and the temperature is raised to 80°C. After the temperature reaches 80°C, 0.01-0.04 parts of initiator BPO are added for reaction, and the reaction temperature is maintained at 80-90°C. Pay attention to observe the reaction state and changes in equipment current. After reacting for 1 hour, 0.01-0.04 parts of initiator BPO are added again for reaction, and the reaction temperature is maintained at 80-90°C. Pay attention to observe the reaction state and changes in equipment current. React for 4-5 After the reaction is heated for hours, when the viscosity of the reactants rises and the current value reaches the specified value, add 0.1-0.4 parts of terminator (BHT) to terminate the reaction, cool down to below 50°C, add 25-40 parts of solvents acetone, ethyl acetate, and methyl acetate, stir evenly at medium speed to obtain mother liquor; add 50-70 parts of solvents toluene, butanone, acetone, ethyl acetate, and methyl acetate, 30-50 parts of mother liquor, start stirring, add 0.5-1.5 parts of emulsified matting aid, disperse at high speed for 1-2 hours, add 0-10 parts of butanone and acetone to adjust the viscosity and solid content to within the specified standard range to obtain liquid traceless glue.

[0069] In summary, the liquid traceless glue prepared by the preparation method has no overflow, low usage, fast brushing speed, labor saving, cost saving, high efficiency, high quality and high adhesion.

[0070] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for preparing liquid traceless adhesive, characterized in that: The following steps are involved: S01: Prepare a first component by using the following raw materials in parts by weight, wherein the composition and weight ratio of the first component specifically include: S02: Prepare a second component by using the following raw materials in parts by weight, wherein the composition and weight ratio of the second component specifically include: S03: Mix the first component and the second component in the following weight ratio to obtain a mother solution, wherein the composition and weight ratio of the mother solution specifically include: S04: diluting the mother liquid to obtain liquid traceless adhesive, wherein the composition and weight ratio of the liquid traceless adhesive specifically include:

2. The method for preparing liquid traceless adhesive according to claim 1, characterized in that: The preparation process of the first component specifically includes: S011: Check and confirm that the reactor is clean and operating normally; S011: Add 18-20 parts of polyester polyol, heat to 120℃ and melt, then start stirring at medium speed, and vacuum for one hour to remove moisture; S012: Add 15-20 parts of solvent toluene, adjust the speed to 30RPM, control the temperature at 75-85°C, add 0.1-0.3 parts of partial chain extender, 0.04-0.08 parts of isocyanate trimer, 1.4-1.7 parts of isocyanate HDI, and 0.002-0.005 parts of catalyst in sequence, and start the reaction; S013: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 5-10 parts of solvent butanone and 0.01-0.04 parts of part of the chain extender to continue the reaction; S014: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 5-10 parts of solvent toluene and 1.0-1.3 parts of partial chain extender to continue the reaction; S015: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 10-20 parts of solvent DMC and continue the reaction; S016: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90℃, wait for the viscosity of the reactant to rise, and when the current value reaches the specified value, add solvent DMC, 15-25 parts of butanone and 0.03-0.05 parts of terminator to terminate the reaction and keep warm for more than one hour; S017: After the heat preservation is completed, the temperature is lowered to below 50°C, and 20-25 parts of solvent butanone, ethyl acetate, and DMC are added and stirred at medium speed to obtain the first component.

3. The method for preparing liquid traceless adhesive according to claim 1, characterized in that: The preparation process of the second component specifically includes: S021: Check and confirm that the reactor is clean and operating normally; S022: Add 18-20 parts of polyester polyol, heat to 120℃ and melt, then start stirring at medium speed, and vacuum for one hour to remove moisture; S023: Add 10-20 parts of solvent toluene, adjust the speed to 30RPM, control the temperature at 75-85°C, and sequentially add 0.03-0.1 parts of chain extender, 0.02-0.05 parts of isocyanate trimer, 1.1-1.5 parts of isocyanate HDI, 0.002-0.005 parts of catalyst, and 0.001-0.003 parts of stabilizer to start the reaction; S024: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 3-8 parts of solvent butanone and 0.005-0.015 parts of part of the chain extender to continue the reaction; S025: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 5-10 parts of solvent toluene and 0.05-0.1 parts of part of the chain extender, react for 10 minutes, add 0.1-0.3 parts of isocyanate HDI, and continue the reaction; S026: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90°C, and when the viscosity of the reactant rises and the current value reaches the specified value, add 7-15 parts of solvent toluene and 0.03-0.07 parts of part of the chain extender to continue the reaction; S027: Observe the reaction state and the change of equipment current, maintain the reaction temperature at 80-90℃, and when the viscosity of the reactant rises and the current value reaches the specified value, add the solvent ethyl acetate, 7-15 parts of butanone and 0.001-0.005 parts of some chain extenders and continue the reaction for 40 minutes; S028: Add 15-25 parts of solvent butanone and ethyl acetate and keep warm for 1-2 hours; S029: After the heat preservation is completed, 3-8 parts of acrylic acid monomer are added and the temperature is raised to 80°C; S0210: After the temperature reaches 80°C, add 0.03-0.08 parts of initiator BPO to react, and keep the reaction temperature at 80-90°C. Pay attention to the reaction state and the change of equipment current; S0211: react for 4-5 hours, when the viscosity of the reactant increases and the current value reaches the specified value, add 0.1-0.4 parts of terminator to terminate the reaction; S0212: Cool down to below 50°C and add 5-10 parts of solvent butanone and ethyl acetate. Stir evenly at medium speed to obtain the second component.

4. The method for preparing liquid traceless adhesive according to claim 3, characterized in that: The preparation process of the mother solution specifically includes: S031: Check and confirm that the reactor is clean and operating normally; S032: Add 20-40 parts of the first component, 30-50 parts of the second component, and 2-8 parts of acrylic acid monomer, and heat to 80°C; S033: After the temperature reaches 80°C, add 0.01-0.04 parts of initiator BPO to react, and keep the reaction temperature at 80-90°C. Pay attention to the reaction state and the change of equipment current; S034: After 1 hour of reaction, add 0.01-0.04 parts of initiator BPO again for reaction, keep the reaction temperature at 80-90℃, and observe the reaction state and equipment current changes; S035: react for 4-5 hours, and when the viscosity of the reactant increases and the current value reaches the specified value, add 0.1-0.4 parts of terminator to terminate the reaction; S036: Cool down to below 50°C, add 25-40 parts of solvent acetone, ethyl acetate and methyl acetate, stir evenly at medium speed to obtain mother liquor.

5. The method for preparing liquid traceless adhesive according to claim 4, characterized in that: The preparation process of the liquid traceless glue specifically includes: S041: Check and confirm that the high-speed dispersion kettle is clean and operating normally; S042: Add 50-70 parts of solvent toluene, butanone, acetone, ethyl acetate, methyl acetate and 30-50 parts of mother liquor in sequence, and start stirring; S043: Add 0.5-1.5 parts of emulsified matting agent and disperse at high speed for 1-2 hours; S044: Add 0.4-2.0 parts of tackifying resin and 0.005-0.05 parts of other additives, and disperse at high speed for 6-8 hours until completely dissolved; S045: Add 0-10 parts of butanone and acetone to adjust the viscosity and solid content to within the specified standard range to obtain liquid traceless glue.

6. Use of the liquid traceless glue according to any one of claims 1 to 5 in the production of shoe soles.

Images