Polyurethane bonding material for furniture and preparation method thereof

Abstract

The invention discloses a polyurethane bonding material for furniture and a preparation method of the polyurethane bonding material. The polyurethane bonding material is prepared from the following raw materials in parts by weight: 130-200 parts of polyurethane resin. By arranging the polyurethane resin, the xylene, the methanol and the acetone, the fluidity and the adhesiveness of the polyurethane bonding material can be better, the phenomenon of insufficient viscosity is avoided, by arranging the cellulose, the quartz powder and the glass fibers, the strength of the polyurethane bonding material can be higher, the contractility of the polyurethane bonding material is further improved, and the service life of the polyurethane bonding material is prolonged. By arranging the solvent, the buffering agent, the anti-aging agent, the accelerant and the stabilizer, the performance and the manufacturability of the polyurethane bonding material can be improved, and the problems that the curing speed is high, the polyurethane bonding material is usually cured in a very short time after being coated, the operation difficulty is increased in the using process, and the service life of the polyurethane bonding material is prolonged are solved. Especially for the situation that large-area bonding is needed or longer working time is needed, the use quality of a user is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture, and specifically to a polyurethane adhesive material for furniture and a preparation method thereof. Background Art

[0002] According to the patent disclosed on the Chinese Patent Network, the patent name is: A Polyurethane Material for Furniture Foam and a Preparation Method Thereof, and the patent number is: 202011492336.6. The present invention relates to the technical field of high molecular polymers, and particularly to a polyurethane material for furniture foam and a preparation method thereof; calculated by weight, its raw materials include: 40 - 68 parts of butter PPG, 20 - 26 parts of isocyanate, 4 - 9 parts of silicone oil, 2 - 7 parts of alkanolamine compounds, 0.5 - 3 parts of organotin catalyst, 1 - 6 parts of solvent, and 2 - 5 parts of water. The silicone oil includes at least one of hydroxyl silicone oil, amino silicone oil, epoxy silicone oil, and polyether silicone oil. The silicone oil is amino silicone oil, and the kinematic viscosity of the amino silicone oil is 50 - 500 mm2 / s (25°C). The alkanolamine compound includes alkanolamine containing tertiary amino group, and the alkanolamine containing tertiary amino group is N - butyldiethanolamine and N - benzylethanolamine. The weight ratio of N - butyldiethanolamine to N - benzylethanolamine is (0.5 - 2):1. The organotin catalyst is bis(dodecylthio)dibutyltin and stannous octoate, and the weight ratio of bis(dodecylthio)dibutyltin to stannous octoate is 31:(3 - 6). The weight ratio of butter PPG to amino silicone oil is (5 - 12):1. The polyurethane material prepared by the present invention has excellent resilience, uniform cell structure, comfortable breathability, abrasion resistance, resistance to repeated indentation fatigue, and resistance to wet heat aging, and is particularly suitable for foam materials used in furniture production; while the above - mentioned polyurethane adhesive material has a very fast curing speed, often curing in a very short time after coating, which increases the operation difficulty during use, especially for large - area bonding or situations that require a longer working time, affecting the use quality of users.

[0003] Therefore, it is necessary to design and transform the polyurethane adhesive material to effectively prevent the phenomenon of its very fast setting time. Summary of the Invention

[0004] To solve the problems raised in the above - mentioned background art, the purpose of the present invention is to provide a polyurethane adhesive material for furniture and a preparation method thereof, which have the advantage of being able to slow down the curing time and solve the problem of very fast curing time.

[0005] To achieve the above object, the present invention provides the following technical solutions: A polyurethane adhesive material for furniture and its preparation method. The polyurethane adhesive material is composed of the following raw materials in parts by weight: 130 - 200 parts of polyurethane resin, 30 - 50 parts of xylene, 35 - 40 parts of methanol, 23 - 20 parts of acetone, 120 - 130 parts of cellulose, 120 - 130 parts of quartz powder, 10 - 20 parts of glass fiber, 15 - 20 parts of solvent, 15 - 25 parts of buffer, 30 - 50 parts of anti-aging agent, 15 - 20 parts of accelerator, and 60 - 70 parts of stabilizer.

[0006] Preferably, the stabilizer of the present invention is composed of an antioxidant, an anti-ultraviolet agent, a heat-resistant agent, and an anti-climate aging agent.

[0007] Preferably, the preparation method includes step a) formula adjustment; step b) raw material preparation; step c) raw material mixing; step d) material addition; step e) viscosity adjustment; step f) bubble treatment; step g) bonding application; step h) curing treatment.

[0008] Step a) Formula adjustment: Determine the formula of the polyurethane adhesive material according to the required bonding performance and application requirements.

[0009] Step b) Raw material preparation: Prepare the required raw materials and select them in a sterile environment.

[0010] Step c) Raw material mixing: Mix raw materials such as polyurethane resin, curing agent, and solvent according to the formula ratio. A multi-functional stirrer or other mixing equipment can be used to thoroughly mix the raw materials under appropriate environmental conditions to ensure that the components are fully dissolved or dispersed.

[0011] Step d) Material addition: Gradually add fillers and additives to the mixed raw materials as needed, stir and mix to evenly disperse the fillers in the polyurethane resin solution to achieve the required bonding performance or material properties.

[0012] Step e) Viscosity adjustment: According to specific needs, the viscosity and fluidity of the polyurethane adhesive material can be adjusted by increasing or decreasing the amount of solvent used. Note that excessive solvent may affect the curing performance of the material.

[0013] Step f) Bubble treatment: During the mixing process, attention should be paid to preventing the generation of bubbles. Methods such as appropriate stirring speed, vacuum treatment, or gas repulsion device can be used to remove or reduce the presence of bubbles.

[0014] Step g) Bonding application: Apply the mixed polyurethane adhesive material to the surface to be bonded. According to specific operation requirements, tools such as brushes, spray guns, rollers, or syringes can be used for construction.

[0015] Step h) Curing treatment: The polyurethane adhesive material needs to undergo a curing process after construction. The time and conditions of the curing process will be determined according to the above-mentioned material conditions. Generally, the temperature needs to be controlled for curing treatment.

[0016] Preferably in the present invention, the multifunctional mixer stirs at a speed of 35 - 40 r / min for 50 - 70 min to make the materials evenly mixed.

[0017] Preferably in the present invention, when mixing, the multifunctional mixer needs to maintain a temperature of 80 °C, and the deviation on the left and right is not more than 5 °C.

[0018] Preferably in the present invention, the stirring time of the multifunctional mixer is 4 - 8 h, and the stirring needs to be carried out in a dust-free workshop to prevent dust from entering.

[0019] Preferably in the present invention, when adding materials, each raw material needs to be put in order and cannot be all put in at once.

[0020] Preferably in the present invention, after the raw materials are prepared, they need to be screened again, and the number of screening times is more than 2 times.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. By setting polyurethane resin, xylene, methanol and acetone in the present invention, the fluidity and adhesiveness of the polyurethane adhesive material can be better, avoiding the phenomenon of insufficient viscosity. By setting cellulose, quartz powder and glass fiber, the strength of the polyurethane adhesive material can be higher, and its shrinkage is also increased. By setting solvent, buffer, anti-aging agent, accelerator and stabilizer, the performance and processability of the polyurethane adhesive material can be improved, avoiding the phenomenon of poor material quality, and solving the problem that the curing speed is very fast, often curing in a very short time after coating, which increases the operation difficulty during use, especially for large-area bonding or situations that require a longer working time, and affects the use quality of users. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] A polyurethane adhesive material for furniture provided by the present invention and its preparation method. The polyurethane adhesive material is composed of the following raw materials in parts by weight: 130-200 parts of polyurethane resin, 30-50 parts of xylene, 35-40 parts of methanol, 23-20 parts of acetone, 120-130 parts of cellulose, 120-130 parts of quartz powder, 10-20 parts of glass fiber, 15-20 parts of solvent, 15-25 parts of buffer, 30-50 parts of anti-aging agent, 15-20 parts of accelerator, and 60-70 parts of stabilizer.

[0025] The present invention is further configured such that the stabilizer is composed of an antioxidant, an anti-ultraviolet agent, a heat-resistant agent, and an anti-climate aging agent.

[0026] The present invention is further configured to include step a) formula adjustment; step b) raw material preparation; step c) raw material mixing; step d) material addition; step e) viscosity adjustment; step f) bubble treatment; step g) bonding application; step h) curing treatment.

[0027] Step a) Formula adjustment: Determine the formula of the polyurethane adhesive material according to the required bonding performance and application requirements.

[0028] Step b) Raw material preparation: Prepare the required raw materials and select them in a sterile environment.

[0029] Step c) Raw material mixing: Mix raw materials such as polyurethane resin, curing agent, and solvent according to the formula ratio. A multi-functional stirrer or other mixing equipment can be used to thoroughly mix the raw materials under appropriate environmental conditions to ensure that the components are fully dissolved or dispersed.

[0030] Step d) Material addition: Gradually add fillers and auxiliaries to the mixed raw materials as needed, stir and mix them to evenly disperse the fillers in the solution of the polyurethane resin to achieve the required bonding performance or material characteristics.

[0031] Step e) Viscosity adjustment: According to specific needs, the viscosity and fluidity of the polyurethane adhesive material can be adjusted by increasing or decreasing the amount of solvent used. Note that excessive solvent may affect the curing performance of the material.

[0032] Step f) Bubble treatment: During the mixing process, attention should be paid to preventing the generation of bubbles. Methods such as appropriate stirring speed, vacuum treatment, or gas repulsion device can be used to remove or reduce the presence of bubbles.

[0033] Step g) Bonding application: Apply the mixed polyurethane adhesive material to the surface to be bonded. According to specific operation requirements, tools such as brushes, spray guns, rollers, or syringes can be used for construction.

[0034] Step h) Curing treatment: The polyurethane adhesive material needs to undergo a curing process after construction. The time and conditions of the curing process will be determined according to the above-mentioned material conditions. Generally, the temperature needs to be controlled for curing treatment.

[0035] The present invention is further configured such that the multi-functional mixer stirs at a speed of 35 - 40 r / min for 50 - 70 min to make the materials evenly mixed.

[0036] The present invention is further configured such that the multi-functional mixer needs to maintain a temperature of 80 °C during mixing, and the left-right deviation is not greater than 5 °C.

[0037] The present invention is further configured such that the mixing time of the multi-functional mixer is 4 - 8 h, and the mixing needs to be carried out in a dust-free workshop to prevent dust from entering.

[0038] The present invention is further configured such that when adding materials, each raw material needs to be put in sequence and cannot be all put in at once.

[0039] The present invention is further configured such that after the raw materials are prepared, they need to be screened again, and the number of screening times is greater than 2 times.

[0040] The working principle and usage process of the present invention: First, according to the required bonding performance and application requirements, determine the formula of the polyurethane adhesive material, prepare the required raw materials, and select them in a sterile environment. According to the formula ratio, mix raw materials such as polyurethane resin, curing agent, and solvent. A multi-functional stirrer or other mixing equipment can be used to thoroughly mix the raw materials under appropriate environmental conditions to ensure that the components in it are fully dissolved or dispersed. According to needs, gradually add fillers and additives to the mixed raw materials and stir and mix them to make the fillers evenly dispersed in the solution of the polyurethane resin to achieve the required bonding performance or material characteristics. According to specific needs, the viscosity and fluidity of the polyurethane adhesive material can be adjusted by increasing or decreasing the amount of solvent used. Note that excessive solvent may affect the curing performance of the material. During the mixing process, attention should be paid to preventing the generation of bubbles, and methods such as appropriate stirring speed, vacuum treatment, or gas repulsion device can be used to remove or reduce the existence of bubbles. Apply the mixed polyurethane adhesive material to the surface to be bonded. According to specific operation requirements, tools such as brushes, spray guns, rollers, or syringes can be used for construction. The polyurethane adhesive material needs to undergo a curing process after construction. The time and conditions of the curing process will be determined according to the above-mentioned material conditions. Generally, the temperature needs to be controlled for curing treatment, so as to achieve the effect of slowing down the curing time.

[0041] In summary: For the polyurethane adhesive material for furniture and its preparation method, by setting polyurethane resin, xylene, methanol and acetone, the fluidity and adhesiveness of the polyurethane adhesive material can be better, avoiding the phenomenon of insufficient viscosity. By setting cellulose, quartz powder and glass fiber, the strength of the polyurethane adhesive material can be higher, and its shrinkage is also increased. By setting solvent, buffer, anti-aging agent, accelerator and stabilizer, the performance and processability of the polyurethane adhesive material can be improved, avoiding the phenomenon of poor material quality, and solving the problem that the curing speed is very fast and it often cures in a very short time after coating, which increases the operation difficulty during use, especially for large-area bonding or situations that require a longer working time, affecting the use quality of users.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane adhesive material for furniture, characterized in that: The polyurethane adhesive material is composed of the following raw materials in parts by weight: 130 - 200 parts of polyurethane resin, 30 - 50 parts of xylene, 35 - 40 parts of methanol, 23 - 20 parts of acetone, 120 - 130 parts of cellulose, 120 - 130 parts of quartz powder, 10 - 20 parts of glass fiber, 15 - 20 parts of solvent, 15 - 25 parts of buffer, 30 - 50 parts of anti-aging agent, 15 - 20 parts of accelerator, and 60 - 70 parts of stabilizer.

2. The polyurethane adhesive material for furniture according to claim 1, characterized in that: The stabilizer is composed of antioxidant, ultraviolet ray inhibitor, heat-resistant agent, and anti-climate aging agent.

3. The polyurethane adhesive material for furniture according to any one of claims 1-2 and its preparation method, characterized in that: It includes step a) formula adjustment; step b) raw material preparation; step c) raw material mixing; step d) material addition; step e) viscosity adjustment; step f) bubble treatment; step g) bonding application; step h) curing treatment. Step a) formula adjustment: Determine the formula of the polyurethane adhesive material according to the required bonding performance and application requirements. Step b) raw material preparation: Prepare the required raw materials and select them in a sterile environment. Step c) raw material mixing: Mix raw materials such as polyurethane resin, curing agent, and solvent according to the formula ratio. A multi-functional stirrer or other mixing equipment can be used to thoroughly mix the raw materials evenly under appropriate environmental conditions to ensure that the components are fully dissolved or dispersed. Step d) material addition: Gradually add fillers and additives to the mixed raw materials as needed, stir and mix them to make the fillers evenly dispersed in the polyurethane resin solution to achieve the required bonding performance or material properties. Step e) viscosity adjustment: According to specific needs, the viscosity and fluidity of the polyurethane adhesive material can be adjusted by increasing or decreasing the amount of solvent used. Note that excessive solvent may affect the curing performance of the material. Step f) bubble treatment: During the mixing process, attention should be paid to preventing the generation of bubbles. Methods such as appropriate stirring speed, vacuum treatment, or gas repulsion device can be used to remove or reduce the presence of bubbles. Step g) bonding application: Apply the mixed polyurethane adhesive material to the surface to be bonded. According to specific operation requirements, tools such as brushes, spray guns, rollers, or syringes can be used for construction. Step h) curing treatment: The polyurethane adhesive material needs to undergo a curing process after construction. The time and conditions of the curing process will be determined according to the above material conditions. Generally, temperature control is required for curing treatment.

4. The polyurethane adhesive material for furniture according to claim 3 and its preparation method, characterized in that: The multi-functional stirrer stirs at a speed of 35 - 40 r / min for 50 - 70 min to make the materials mixed evenly.

5. The polyurethane adhesive material for furniture according to claim 3 and its preparation method, characterized in that: The multi-functional stirrer needs to maintain a temperature of 80 °C during mixing, and the deviation is not more than 5 °C.

6. The polyurethane adhesive material for furniture according to claim 3 and its preparation method, characterized in that: The stirring time of the multi-functional stirrer is 4 - 8 h, and stirring needs to be carried out in a dust-free workshop to prevent dust from entering.

7. The polyurethane adhesive material for furniture according to claim 3 and its preparation method, characterized in that: When adding materials, each raw material needs to be put in order and cannot be all put in at once.

8. The polyurethane adhesive material for furniture according to claim 3 and its preparation method, characterized in that: After the raw materials are prepared, they need to be screened again, and the number of screening times is more than 2 times.