CN115093822A - Hot melt adhesive for laminating household appliance panels and preparation method thereof - Google Patents
Hot melt adhesive for laminating household appliance panels and preparation method thereof Download PDFInfo
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- CN115093822A CN115093822A CN202210854705.4A CN202210854705A CN115093822A CN 115093822 A CN115093822 A CN 115093822A CN 202210854705 A CN202210854705 A CN 202210854705A CN 115093822 A CN115093822 A CN 115093822A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J177/00—Adhesives based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a hot melt adhesive for attaching a panel of a household appliance and a preparation method thereof, wherein the raw materials of the hot melt adhesive for attaching the panel of the household appliance comprise, by weight, 30-55 parts of thermoplastic polyurethane, 30-45 parts of copolyamide resin, 15-20 parts of dihydric alcohol, 1-2 parts of a modifier and 1-3 parts of an auxiliary agent; the melting point of the thermoplastic polyurethane is 85-95 ℃, and the melt index is 30-35 g/5min/2.0kg/180 ℃. The hot melt adhesive has low viscosity and high initial adhesion, shortens the pressure maintaining time, and is beneficial to simplifying the production process and improving the production efficiency.
Description
Technical Field
The invention belongs to the technical field of hot melt adhesives, and particularly relates to a hot melt adhesive for laminating a panel of a household appliance.
Background
The hot melt adhesive is a solid adhesive without solvent, which is prepared by taking thermoplastic resin as a main component and taking components such as a tackifier, a plasticizer, an antioxidant, a filler and the like as additives through melt mixing; at present, hot melt adhesives are prepared into various film, rod and granular forms for a plurality of fields, and have high adaptability to various materials.
In the sealing and bonding of the household appliance packaging material, the requirement on initial adhesion is particularly high, the optimal glue applying means is realized for the sealing and bonding and the glue dispensing of the household appliance packaging material, and the process quality and the efficiency can be considered at the same time. However, the existing hot melt adhesive has two problems in the use process: firstly, the glue has overlarge viscosity, and the wire drawing phenomenon is easy to occur in the glue dispensing process; secondly, the initial adhesion is not strong enough, and longer pressure maintaining time is needed, thereby reducing the production efficiency of household appliance packaging.
Disclosure of Invention
The invention mainly solves the technical problem of providing the hot melt adhesive for attaching the panel of the household appliance and the preparation method thereof.
In order to solve the technical problems, the invention adopts a technical scheme that: the raw materials of the hot melt adhesive for laminating the panels of the household appliances comprise, by weight, 30-55 parts of thermoplastic polyurethane, 30-45 parts of copolyamide resin, 15-20 parts of dihydric alcohol, 1-2 parts of a modifier and 1-3 parts of an auxiliary agent;
the melting point of the thermoplastic polyurethane is 85-95 ℃, and the melt index is 30-35 g/5min/2.0kg/180 ℃.
Further, the copolyamide resin is at least one of dimer acid, dodecanedioic acid and hexamethylenediamine.
Further, the dihydric alcohol is at least one of 1, 4-butanediol and polyethylene glycol.
Further, the modifier is pentaerythritol triacrylate or dipentaerythritol pentaacrylate.
Further, the auxiliaries include stabilizers, plasticizers, fillers and compatibilizers.
Further, the stabilizer is 1-phenyl-3-pyrazolidone.
Further, the plasticizer is at least one of epoxy fatty acid ester, polyhydric alcohol fatty acid ester and citric acid ester.
Further, the filler is nano calcium carbonate, and the compatibilizer is maleic anhydride grafted low density polyethylene.
Further, the compatibilizer is maleic anhydride grafted low density polyethylene.
A preparation method of a hot melt adhesive for attaching a panel of a household appliance comprises the steps of mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer, and stirring at the rotation speed of 300-400rpm at the temperature of 130-150 ℃ for 2-3h until the materials are completely melted and uniformly mixed; then adding a modifier and a filler, stirring at the temperature of 120-; performing the nitrogen protection of the whole mixing reaction process by a nitrogen protection device in the whole hot melt adhesive reaction process; the whole nitrogen protection device for the hot melt adhesive reaction comprises: the device comprises a nitrogen containing box sealing shell, a stirring container containing layer, a heating insulation layer, a temperature detection module, a mixed glue solution feeding port, a mixed glue solution discharging port, a nitrogen inlet valve, an air exhaust vacuum pump and a heating power supply lead through hole; the stirring container accommodating layer is positioned on the uppermost layer of the nitrogen accommodating box sealing shell, a stirring paddle shaft through hole is formed in the middle of the nitrogen accommodating box sealing shell at the top of the stirring container accommodating layer, and a paddle shaft through hole sealing ring is arranged between the stirring paddle shaft through hole and the stirring paddle shaft; the bottom of the accommodating layer of the stirring container is provided with a bearing diathermic steel wire mesh, and the stirring container is placed on the bearing diathermic steel wire mesh; a heating insulation layer is arranged below the bearing diathermic steel wire mesh of the stirring container accommodating layer; the heating and insulating layer is provided with an electric heating wire and a temperature detection module; the temperature detection module comprises a temperature sensor and a sensor signal wire; a heating power supply wire of the sensor signal wire and the electric heating wire penetrates through a heating layer wire through hole, the heating layer wire through hole is positioned on a sealing shell of the nitrogen containing box where the heating insulation layer is positioned, and a wire sealing ring is arranged to seal the edges of the heating power supply wire and the heating layer wire through hole of the sensor signal wire and the electric heating wire; the mixed glue solution feeding port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer, and the mixed glue solution discharging port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer and symmetrical to the mixed glue solution feeding port; the mixed glue solution feeding port and the mixed glue solution discharging port are both provided with a material port sealing cap; the nitrogen gas lets in the centre that the valve is located the sealed casing of nitrogen gas containing box at heating heat preservation place, and the evacuation vacuum pump is located the heating heat preservation lower part lateral wall that the sealed casing of nitrogen gas containing box, and the evacuation gas vent passes the sealed casing of nitrogen gas containing box outside the sealed casing of nitrogen gas containing box to sealed gas vent edge and the sealed casing opening edge of nitrogen gas containing box of sealed glue.
Further, the whole nitrogen protection step of the mixing reaction through the whole nitrogen protection device of the hot melt adhesive reaction comprises the following steps: opening a material port sealing cap of a mixed glue solution feeding port, injecting the mixed glue solution obtained by mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer into a stirring container through the mixed glue solution feeding port, and closing the material port sealing cap of the mixed glue solution feeding port; starting an air exhaust vacuum pump to exhaust air in the sealed shell of the nitrogen containing box until the air exhaust vacuum pump sets vacuum negative pressure; opening a nitrogen inlet valve, introducing nitrogen and keeping; the electric heating wire is electrified and heated, and the heating temperature is detected by the temperature sensor to reach 130-; the stirring paddle shaft is driven by the motor to stir for 2-3h at the rotating speed of 300-400rpm until the materials are completely melted and uniformly mixed; at the moment, the introduction amount of nitrogen is increased, a material port sealing cap of a mixed glue solution feeding port is opened at the same time, and a modifier and a filler are injected into a stirring container; the power-on heating power of the electric heating wire is reduced, the heating temperature is detected by a temperature sensor at 120-130 ℃, a stirring paddle shaft is driven by a motor to stir for 1-1.5h at the rotating speed of 150-200rpm, and the whole mixing reaction process is protected by nitrogen; and opening a material port sealing cap at a material outlet of the mixed glue solution to discharge after the steps are completed, so as to obtain the hot melt adhesive for laminating the panel of the household appliance.
The invention has at least the following advantages:
1. the hot melt adhesive for laminating the household appliance panel has small molecular weight and viscosity in the early period, is convenient for dispensing and is not easy to generate wire drawing when in use;
2. the hot melt adhesive for laminating the panels of the household appliances has extremely high initial adhesion, shortens the pressure maintaining time, and is beneficial to simplifying the production process and improving the production efficiency;
3. the invention relates to a preparation method of a hot melt adhesive for attaching a panel of a household appliance, which comprises the steps of mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer, and stirring at the rotating speed of 300-400rpm at the temperature of 130-150 ℃ for 2-3h until the materials are completely melted and uniformly mixed; then adding a modifier and a filler, stirring at the temperature of 120-; performing the nitrogen protection of the whole mixing reaction process by a nitrogen protection device in the whole hot melt adhesive reaction process; the whole nitrogen protection device for the hot melt adhesive reaction comprises: the device comprises a nitrogen containing box sealing shell, a stirring container containing layer, a heating heat preservation layer, a temperature detection module, a mixed glue solution feeding port, a mixed glue solution discharging port, a nitrogen inlet valve, an air exhaust vacuum pump and a heating power supply lead through hole; the stirring container accommodating layer is positioned on the uppermost layer of the nitrogen accommodating box sealing shell, a stirring paddle shaft through hole is formed in the middle of the nitrogen accommodating box sealing shell at the top of the stirring container accommodating layer, and a paddle shaft through hole sealing ring is arranged between the stirring paddle shaft through hole and the stirring paddle shaft; the bottom of the accommodating layer of the stirring container is provided with a bearing diathermanous steel wire mesh, and the stirring container is placed on the bearing diathermanous steel wire mesh; a heating insulation layer is arranged below the bearing diathermic steel wire mesh of the stirring container accommodating layer; the heating and insulating layer is provided with an electric heating wire and a temperature detection module; the temperature detection module comprises a temperature sensor and a sensor signal wire; a heating power supply wire of the sensor signal wire and the electric heating wire penetrates through a heating layer wire through hole, the heating layer wire through hole is positioned on a sealing shell of the nitrogen containing box where the heating insulation layer is positioned, and a wire sealing ring is arranged to seal the edges of the heating power supply wire and the heating layer wire through hole of the sensor signal wire and the electric heating wire; the mixed glue solution feeding port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer, and the mixed glue solution discharging port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer and symmetrical to the mixed glue solution feeding port; a material port sealing cap is arranged at each of the mixed glue solution feeding port and the mixed glue solution discharging port; the nitrogen gas inlet valve is positioned in the middle of the nitrogen gas containing box sealing shell where the heating insulation layer is positioned, the air exhaust vacuum pump is positioned in the side wall of the lower part of the heating insulation layer of the nitrogen gas containing box sealing shell, the vacuumizing exhaust port penetrates through the nitrogen gas containing box sealing shell to the outside of the nitrogen gas containing box sealing shell, and the edge of the exhaust port and the edge of the opening of the nitrogen gas containing box sealing shell are sealed by sealant; the mixing process can be controlled more uniformly, and the nitrogen protection device can improve the preparation process of the glue solution.
The whole nitrogen protection step of the mixed reaction through the whole nitrogen protection device of the hot melt adhesive reaction comprises the following steps: opening a material port sealing cap of a mixed glue solution feeding port, injecting the mixed glue solution obtained by mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer into a stirring container through the mixed glue solution feeding port, and closing the material port sealing cap of the mixed glue solution feeding port; starting an air exhaust vacuum pump to exhaust air in the sealed shell of the nitrogen containing box until the air exhaust vacuum pump sets vacuum negative pressure; opening a nitrogen inlet valve, introducing nitrogen and keeping; the electric heating wire is electrified and heated, and the temperature sensor detects that the heating temperature reaches 130-150 ℃ and keeps in a constant temperature range; the stirring paddle shaft is driven by the motor to stir for 2-3h at the rotating speed of 300-400rpm until the materials are completely melted and uniformly mixed; at the moment, the introduction amount of nitrogen is increased, a material port sealing cap of a mixed glue solution feeding port is opened at the same time, and a modifier and a filler are injected into a stirring container; reducing the power heating power of the electric heating wire, detecting the heating temperature at 120-; opening a material port sealing cap at a material outlet of the mixed glue solution to discharge after the steps are finished, and obtaining the hot melt adhesive for the lamination of the panel of the household appliance; the control process is more accurate, the temperature control maintenance degree is higher, and the nitrogen protection effect is better.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
Example 1
The hot melt adhesive for laminating the panels of the household appliances comprises the following components in parts by weight: 40 parts of thermoplastic polyurethane, 40 parts of dimer acid, 18 parts of 1, 4-butanediol, 1 part of pentaerythritol triacrylate, 0.05 part of 1-phenyl-3-pyrazolidone, 0.3 part of epoxy fatty acid ester, 0.45 part of nano calcium carbonate and 0.2 part of maleic anhydride grafted low-density polyethylene.
Example 2:
the polyolefin hot melt adhesive for laminating the panels of the household appliances comprises the following components in parts by weight: 50 parts of thermoplastic polyurethane, 30 parts of dodecanedioic acid, 17 parts of polyethylene glycol, 1 part of dipentaerythritol pentaacrylate, 0.89 part of 1-phenyl-3-pyrazolidone, 0.1 part of polyol fatty acid ester, 1 part of nano calcium carbonate and 0.01 part of maleic anhydride grafted low-density polyethylene.
Example 3
The hot melt adhesive for laminating the panels of the household appliances comprises the following components in parts by weight: 30 parts of thermoplastic polyurethane, 45 parts of hexamethylene diamine, 20 parts of polyethylene glycol, 2 parts of dipentaerythritol pentaacrylate, 0.8 part of 1-phenyl-3-pyrazolidone, 1.21 parts of citrate, 0.98 part of nano calcium carbonate and 0.01 part of maleic anhydride grafted low-density polyethylene.
Example 4
The hot melt adhesive for laminating the panels of the household appliances comprises the following components in parts by weight: 55 parts of thermoplastic polyurethane, 28 parts of dodecanedioic acid, 15 parts of 1, 4-butanediol, 1 part of pentaerythritol triacrylate, 0.4 part of 1-phenyl-3-pyrazolidone, 0.08 part of polyol fatty acid ester, 0.5 part of nano calcium carbonate and 0.02 part of maleic anhydride grafted low-density polyethylene.
Example 5
The hot melt adhesive for laminating the panels of the household appliances comprises the following components in parts by weight: 45 parts of thermoplastic polyurethane, 35 parts of dimer acid, 16 parts of polyethylene glycol, 2 parts of dipentaerythritol pentaacrylate, 0.5 part of 1-phenyl-3-pyrazolidone, 0.8 part of epoxy fatty acid ester, 0.69 part of nano calcium carbonate and 0.01 part of maleic anhydride grafted low-density polyethylene.
The preparation method of the hot melt adhesive for attaching the panels of the household appliances in the embodiments 1 to 5 specifically comprises the following steps:
in one embodiment, the preparation method of the hot melt adhesive for laminating the panels of the household appliances comprises the steps of mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer, and stirring at the rotating speed of 300-400rpm at the temperature of 130-150 ℃ for 2-3h until the materials are completely melted and uniformly mixed; then adding a modifier and a filler, stirring at the rotation speed of 150-200rpm at the temperature of 120-130 ℃ for 1-1.5h, discharging to obtain the hot melt adhesive for the lamination of the panel of the household appliance, and carrying out nitrogen protection in the whole reaction process; performing nitrogen protection in the whole mixing reaction process by using a nitrogen protection device in the whole hot melt adhesive reaction process; the whole nitrogen protection device for the hot melt adhesive reaction comprises: the device comprises a nitrogen containing box sealing shell, a stirring container containing layer, a heating insulation layer, a temperature detection module, a mixed glue solution feeding port, a mixed glue solution discharging port, a nitrogen inlet valve, an air exhaust vacuum pump and a heating power supply lead through hole; the stirring container accommodating layer is positioned on the uppermost layer of the nitrogen accommodating box sealed shell, a stirring paddle shaft through hole is formed in the middle of the nitrogen accommodating box sealed shell at the top of the stirring container accommodating layer, and a paddle shaft through hole sealing ring is arranged between the stirring paddle shaft through hole and a stirring paddle shaft; the bottom of the accommodating layer of the stirring container is provided with a bearing diathermic steel wire mesh, and the stirring container is placed on the bearing diathermic steel wire mesh; a heating insulation layer is arranged below the bearing diathermic steel wire mesh of the stirring container accommodating layer; the heating and insulating layer is provided with an electric heating wire and a temperature detection module; the temperature detection module comprises a temperature sensor and a sensor signal wire; a heating power supply wire of the sensor signal wire and the electric heating wire penetrates through a heating layer wire through hole, the heating layer wire through hole is positioned on a sealing shell of the nitrogen containing box where the heating insulation layer is positioned, and a wire sealing ring is arranged to seal the edges of the heating power supply wire and the heating layer wire through hole of the sensor signal wire and the electric heating wire; the mixed glue solution feeding port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer, and the mixed glue solution discharging port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer and symmetrical to the mixed glue solution feeding port; the mixed glue solution feeding port and the mixed glue solution discharging port are both provided with a material port sealing cap; the nitrogen gas lets in the centre that the valve is located the sealed casing of nitrogen gas containing box at heating heat preservation place, and the evacuation vacuum pump is located the heating heat preservation lower part lateral wall that the sealed casing of nitrogen gas containing box, and the evacuation gas vent passes the sealed casing of nitrogen gas containing box outside the sealed casing of nitrogen gas containing box to sealed gas vent edge and the sealed casing opening edge of nitrogen gas containing box of sealed glue.
In one embodiment, the invention relates to a preparation method of a hot melt adhesive for laminating a panel of a household appliance, which comprises the following steps of performing a mixing reaction by using a nitrogen protection device in the whole hot melt adhesive reaction process and performing nitrogen protection in the whole process: opening a material port sealing cap of a mixed glue solution feeding port, injecting the mixed glue solution obtained by mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer into a stirring container through the mixed glue solution feeding port, and closing the material port sealing cap of the mixed glue solution feeding port; starting an air exhaust vacuum pump to exhaust air in the sealed shell of the nitrogen containing box until the air exhaust vacuum pump sets vacuum negative pressure; opening a nitrogen inlet valve, introducing nitrogen and keeping; the electric heating wire is electrified and heated, and the heating temperature is detected by the temperature sensor to reach 130-; the stirring paddle shaft is driven by the motor to stir for 2-3h at the rotating speed of 300-400rpm until the materials are completely melted and uniformly mixed; at the moment, the introduction amount of nitrogen is increased, a material port sealing cap of a mixed glue solution feeding port is opened at the same time, and a modifier and a filler are injected into a stirring container; the power-on heating power of the electric heating wire is reduced, the heating temperature is detected by a temperature sensor at 120-130 ℃, a stirring paddle shaft is driven by a motor to stir for 1-1.5h at the rotating speed of 150-200rpm, and the whole mixing reaction process is protected by nitrogen; and opening a material port sealing cap at a material outlet of the mixed glue solution to discharge after the steps are completed, so as to obtain the hot melt adhesive for laminating the panel of the household appliance.
In the preparation process of the hot melt adhesive, the heat conduction temperature value of the heating container in the heating process of the heating insulating layer is calculated, and the calculation formula is as follows:
wherein, Trcd represents a heat conduction temperature value of the heating container in a heating process of a heating insulation layer, Ke represents a number of nodes (including 8 nodes) of a multi-node non-uniform entity hexahedral thermal unit, a coordinate system is established by taking the center of a sealed shell of a nitrogen containing box as a space coordinate center, Xi represents an X-axis coordinate of an ith node, Yi represents a Y-axis coordinate of the ith node, Zi represents a Z-axis coordinate of the ith node, and X, Y, Z represents central point coordinates of the multi-node non-uniform entity hexahedral thermal unit respectively; through calculating heating container at heating heat preservation heating process heat conduction temperature value, make the preparation process temperature of hot melt adhesive more be close actual demand temperature, the control that heating wire heating temperature and heating container temperature conduction mixed glue liquid temperature is more accurate.
Comparative example 1
The hot melt adhesive comprises the following components in parts by weight: 25 parts of thermoplastic polyurethane, 25 parts of hydrogenated styrene-butadiene-styrene block copolymer elastomer, 10 parts of 1, 4-butanediol, 1.98 parts of pentaerythritol triacrylate, 12 parts of 1-phenyl-3-pyrazolidone, 25 parts of polyol fatty acid ester, 1 part of nano calcium carbonate and 0.02 part of compatibilizer.
Comparative example 2
The hot melt adhesive comprises the following components in parts by weight: 25 parts of thermoplastic polyurethane, 25 parts of polypropylene elastomer, 10 parts of 1, 4-butanediol, 1.98 parts of pentaerythritol triacrylate, 12 parts of 1-phenyl-3-pyrazolidone, 25 parts of polyol fatty acid ester, 1 part of nano calcium carbonate and 0.02 part of compatibilizer.
The preparation methods of the hot melt adhesives of comparative example 1 and comparative example 2 specifically comprise the following steps:
mixing the components except the filler and the modifier, and stirring at 150 ℃ at the rotating speed of 300rpm for 2 hours until the materials are completely melted and uniformly mixed; and then adding a filler and a modifier, stirring at the rotation speed of 200rpm at 120 ℃ for 1.5h, discharging to obtain the hot melt adhesive, and reacting under the protection of nitrogen in the whole process.
The hot melt adhesives prepared in examples 1 to 5 and comparative examples 1 to 2 were subjected to the test of melt viscosity and initial adhesion peel strength properties, and the test results were as follows:
the above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a hot melt adhesive for laminating of domestic appliance panel which characterized in that: the raw materials of the hot melt adhesive for laminating the panels of the household appliances comprise, by weight, 30-55 parts of thermoplastic polyurethane, 30-45 parts of copolyamide resin, 15-20 parts of dihydric alcohol, 1-2 parts of a modifier and 1-3 parts of an auxiliary agent;
the melting point of the thermoplastic polyurethane is 85-95 ℃, and the melt index is 30-35 g/5min/2.0kg/180 ℃.
2. The hot melt adhesive for laminating the panels of the household appliances according to claim 1, is characterized in that: the copolyamide resin is at least one of dimer acid, dodecanedioic acid and hexamethylene diamine.
3. The hot melt adhesive for laminating the panels of the household appliances according to claim 1, is characterized in that: the dihydric alcohol is at least one of 1, 4-butanediol and polyethylene glycol.
4. The hot melt adhesive for laminating the panels of the household appliances according to claim 1, is characterized in that: the modifier is pentaerythritol triacrylate or dipentaerythritol pentaacrylate.
5. The hot melt adhesive for laminating the panels of the household appliances according to claim 1, is characterized in that: the auxiliary agent comprises a stabilizer, a plasticizer, a filler and a compatibilizer.
6. The hot melt adhesive for laminating the panels of the household appliances according to claim 5, is characterized in that: the stabilizer is 1-phenyl-3-pyrazolidone.
7. The hot melt adhesive for laminating the panels of the household appliances according to claim 5, is characterized in that: the plasticizer is at least one of epoxy fatty acid ester, polyalcohol fatty acid ester and citric acid ester.
8. The hot melt adhesive for laminating the panels of the household appliances according to claim 5, is characterized in that: the filler is nano calcium carbonate, and the compatibilizer is maleic anhydride grafted low-density polyethylene.
9. A preparation method of a hot melt adhesive for laminating a household appliance panel is characterized by comprising the following steps: the preparation method comprises the steps of mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer, and stirring at the rotation speed of 300-400rpm at the temperature of 130-150 ℃ for 2-3h until the materials are completely melted and uniformly mixed; then adding a modifier and a filler, stirring at the temperature of 120-; performing nitrogen protection in the whole mixing reaction process by using a nitrogen protection device in the whole hot melt adhesive reaction process; the whole nitrogen protection device for the hot melt adhesive reaction comprises: the device comprises a nitrogen containing box sealing shell, a stirring container containing layer, a heating insulation layer, a temperature detection module, a mixed glue solution feeding port, a mixed glue solution discharging port, a nitrogen inlet valve, an air exhaust vacuum pump and a heating power supply lead through hole; the stirring container accommodating layer is positioned on the uppermost layer of the nitrogen accommodating box sealing shell, a stirring paddle shaft through hole is formed in the middle of the nitrogen accommodating box sealing shell at the top of the stirring container accommodating layer, and a paddle shaft through hole sealing ring is arranged between the stirring paddle shaft through hole and the stirring paddle shaft; the bottom of the accommodating layer of the stirring container is provided with a bearing diathermic steel wire mesh, and the stirring container is placed on the bearing diathermic steel wire mesh; a heating insulating layer is arranged below the bearing diathermanous steel wire mesh of the stirring container accommodating layer; the heating and insulating layer is provided with an electric heating wire and a temperature detection module; the temperature detection module comprises a temperature sensor and a sensor signal wire; a heating power supply wire of the sensor signal wire and the electric heating wire penetrates through a heating layer wire through hole, the heating layer wire through hole is positioned on a sealing shell of the nitrogen containing box where the heating insulation layer is positioned, and a wire sealing ring is arranged to seal the edges of the heating power supply wire and the heating layer wire through hole of the sensor signal wire and the electric heating wire; the mixed glue solution feeding port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer, and the mixed glue solution discharging port is arranged on one side, deviated from the middle, of the sealing shell of the nitrogen containing box at the top of the stirring container containing layer and symmetrical to the mixed glue solution feeding port; the mixed glue solution feeding port and the mixed glue solution discharging port are both provided with a material port sealing cap; the nitrogen gas lets in the centre that the valve is located the nitrogen gas at heating heat preservation place and holds case seal housing, and row's air vacuum pump is located nitrogen gas and holds case seal housing's heating heat preservation lower part lateral wall, and the evacuation gas vent passes nitrogen gas and holds outside case seal housing holds case seal housing to nitrogen gas to sealed gas vent edge of gluing holds case seal housing opening edge with nitrogen gas.
10. The method for preparing the hot melt adhesive for laminating the panels of the household appliances according to claim 9, is characterized in that: the whole nitrogen protection step of the mixed reaction through the whole nitrogen protection device of the hot melt adhesive reaction comprises the following steps: opening a material port sealing cap of a mixed glue solution feeding port, injecting the mixed glue solution obtained by mixing thermoplastic polyurethane, copolyamide resin, dihydric alcohol, a stabilizer, a plasticizer and a compatibilizer into a stirring container through the mixed glue solution feeding port, and closing the material port sealing cap of the mixed glue solution feeding port; starting an air exhaust vacuum pump to exhaust air in the sealed shell of the nitrogen containing box until the air exhaust vacuum pump sets vacuum negative pressure; opening a nitrogen inlet valve, introducing nitrogen and keeping; the electric heating wire is electrified and heated, and the heating temperature is detected by the temperature sensor to reach 130-; the stirring paddle shaft is driven by the motor to stir for 2-3h at the rotating speed of 300-400rpm until the materials are completely melted and uniformly mixed; at the moment, the introduction amount of nitrogen is increased, meanwhile, a material port sealing cap of a mixed glue solution feeding port is opened, and a modifier and a filler are injected into a stirring container; reducing the power heating power of the electric heating wire, detecting the heating temperature at 120-; and opening a material port sealing cap of the mixed glue solution discharge port to discharge after the steps are finished, and obtaining the hot melt adhesive for laminating the panel of the household appliance.
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| CN202210854705.4A CN115093822A (en) | 2022-07-18 | 2022-07-18 | Hot melt adhesive for laminating household appliance panels and preparation method thereof |
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| CN202210854705.4A CN115093822A (en) | 2022-07-18 | 2022-07-18 | Hot melt adhesive for laminating household appliance panels and preparation method thereof |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050165163A1 (en) * | 2003-12-24 | 2005-07-28 | Michael Krebs | Highly elastic polyurethane hot-melt adhesives |
| CN101838511A (en) * | 2010-03-31 | 2010-09-22 | 鲁泰纺织股份有限公司 | Heat-resistant clothing hot melt adhesive and preparation method thereof |
| JP2011256228A (en) * | 2010-06-07 | 2011-12-22 | Sanyo Chem Ind Ltd | Hot-melt adhesive |
| JP2012144654A (en) * | 2011-01-13 | 2012-08-02 | Tosoh Corp | Thermoplastic polyurethane resin composition |
| CN103396753A (en) * | 2013-08-15 | 2013-11-20 | 西安大天新材料有限公司 | Preparation method of hot-melt polyurethane resin for bonding material |
| CN105733494A (en) * | 2016-04-28 | 2016-07-06 | 上海天洋热熔粘接材料股份有限公司 | Novel hot melt adhesive and preparation method thereof |
| CN105733495A (en) * | 2016-04-28 | 2016-07-06 | 上海天洋热熔粘接材料股份有限公司 | Novel hot melt adhesive and preparation method thereof |
| CN105860917A (en) * | 2016-04-28 | 2016-08-17 | 上海天洋热熔粘接材料股份有限公司 | Novel hot-melt adhesive and preparation method thereof |
| CN107201207A (en) * | 2017-07-27 | 2017-09-26 | 合肥远科服装设计有限公司 | A kind of clothes high viscous waterproof heat resistant glue and preparation method thereof |
| CN208469372U (en) * | 2018-06-15 | 2019-02-05 | 浙江省邮电印刷股份有限公司 | A kind of plastic roll device of ellipse apparatus for binding books |
| CN208786300U (en) * | 2018-06-25 | 2019-04-26 | 滨海恒联化工有限公司 | A kind of kneader nitrogen protection device |
| CN111548762A (en) * | 2020-06-18 | 2020-08-18 | 广东足迹鞋业有限公司 | Hot melt adhesive for orthopedic shoe molding and manufacturing process thereof |
| CN214635514U (en) * | 2021-01-10 | 2021-11-09 | 烟台顺明新材料有限公司 | Vacuum heating kneading machine |
-
2022
- 2022-07-18 CN CN202210854705.4A patent/CN115093822A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050165163A1 (en) * | 2003-12-24 | 2005-07-28 | Michael Krebs | Highly elastic polyurethane hot-melt adhesives |
| CN101838511A (en) * | 2010-03-31 | 2010-09-22 | 鲁泰纺织股份有限公司 | Heat-resistant clothing hot melt adhesive and preparation method thereof |
| JP2011256228A (en) * | 2010-06-07 | 2011-12-22 | Sanyo Chem Ind Ltd | Hot-melt adhesive |
| JP2012144654A (en) * | 2011-01-13 | 2012-08-02 | Tosoh Corp | Thermoplastic polyurethane resin composition |
| CN103396753A (en) * | 2013-08-15 | 2013-11-20 | 西安大天新材料有限公司 | Preparation method of hot-melt polyurethane resin for bonding material |
| CN105733494A (en) * | 2016-04-28 | 2016-07-06 | 上海天洋热熔粘接材料股份有限公司 | Novel hot melt adhesive and preparation method thereof |
| CN105733495A (en) * | 2016-04-28 | 2016-07-06 | 上海天洋热熔粘接材料股份有限公司 | Novel hot melt adhesive and preparation method thereof |
| CN105860917A (en) * | 2016-04-28 | 2016-08-17 | 上海天洋热熔粘接材料股份有限公司 | Novel hot-melt adhesive and preparation method thereof |
| CN107201207A (en) * | 2017-07-27 | 2017-09-26 | 合肥远科服装设计有限公司 | A kind of clothes high viscous waterproof heat resistant glue and preparation method thereof |
| CN208469372U (en) * | 2018-06-15 | 2019-02-05 | 浙江省邮电印刷股份有限公司 | A kind of plastic roll device of ellipse apparatus for binding books |
| CN208786300U (en) * | 2018-06-25 | 2019-04-26 | 滨海恒联化工有限公司 | A kind of kneader nitrogen protection device |
| CN111548762A (en) * | 2020-06-18 | 2020-08-18 | 广东足迹鞋业有限公司 | Hot melt adhesive for orthopedic shoe molding and manufacturing process thereof |
| CN214635514U (en) * | 2021-01-10 | 2021-11-09 | 烟台顺明新材料有限公司 | Vacuum heating kneading machine |
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