Wood furniture paint and preparation method thereof

Abstract

The invention relates to the technical field of paint, in particular to wood furniture paint and a preparation method thereof. The wood furniture paint comprises the following raw materials in parts by weight: 80-100 parts of polyvinyl chloride resin, 40-60 parts of water, 40-60 parts of polyurethane resin, 10-20 parts of a first additive, 8-12 parts of a second additive, 6-8 parts of a dispersing agent, 6-8 parts of talcum powder, 4-6 parts of a flatting agent and 1-3 parts of a regulator. According to the wood furniture paint, the first additive is added in the preparation process of the wood furniture paint, the acrylic resin, the starch, the bamboo fibers, the cedarwood oil, the chitosan, the lavender essential oil and the kieselguhr serve as additives in the first additive, and the acrylic resin can form a continuous and compact protective film on the surface of wood furniture; the overall protection performance of the paint coating is enhanced, and the corrosion resistance of the paint is effectively improved while the paint coating has relatively good barrier property.

Description

Technical Field

[0001] The invention relates to the technical field of paints, in particular to a wood furniture paint and a preparation method thereof. Background Art

[0002] Wood furniture paint can be used to enhance the appearance and durability of furniture. It can give the wood a beautiful coat and make the furniture surface rich in color. At the same time, it can effectively isolate moisture and air, prevent the wood from moisture, decay and insects, and extend the service life of wooden furniture.

[0003] In the prior art, after the paint is applied to wooden furniture, the surface of the wooden furniture will be affected by the growth of bacteria and microorganisms during long-term use, causing damage to the wooden furniture and affecting the use effect of the paint. Based on this, the present invention provides a wooden furniture paint and a preparation method thereof. Summary of the invention

[0004] The object of the present invention is to provide a wood furniture paint and a preparation method thereof. The wood furniture paint prepared by the present invention not only has good antibacterial properties, but also has excellent wear resistance, thereby effectively improving the use performance of the wood furniture paint.

[0005] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, the present invention provides a wood furniture paint, comprising the following raw materials in parts by weight: 80 to 100 parts of polyvinyl chloride resin, 40 to 60 parts of water, 40 to 60 parts of polyurethane resin, 10 to 20 parts of a first additive, 8 to 12 parts of a second additive, 6 to 8 parts of a dispersant, 6 to 8 parts of talc, 4 to 6 parts of a leveling agent, and 1 to 3 parts of a regulator; The raw materials of the first additive are composed of acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil, diatomaceous earth and sodium polyacrylate, and the mass ratio of the raw materials of the first additive is 1: (0.6-0.8): (0.2-0.4): (0.2-0.4): (0.2-0.4): (0.1-0.3): (0.1-0.3): (0.1-0.2); The raw materials of the second additive are composed of menthol, citral, m-phenylenediamine and an active agent, and the mass ratio of the raw materials of the second additive is 1: (0.8-1.2): (0.1-0.3): (0.1-0.3).

[0006] Furthermore, the dispersant is selected from at least one of polyvinyl alcohol, lauric acid and stearic acid.

[0007] Furthermore, the leveling agent is selected from at least one of polydimethylsiloxane and hydroxyethyl cellulose.

[0008] Furthermore, the regulator is selected from at least one of butoxyethanol, ethylene glycol monobutyl ether and ethylene glycol.

[0009] Furthermore, the starch is esterified starch whose raw material is corn.

[0010] Furthermore, the bamboo fiber is pretreated, and the pretreatment method is as follows: the bamboo fiber is spread flat on a tray, sent into an oven, the oven is set at 40-60°C for drying at 10-20°C, and after the drying is completed, it is sent into a plasma generator, the power is set to 50-70W, and nitrogen is introduced at an amount of 10-20cm 3 / min, the vacuum degree is 20-30Pa, the processing time is 8-12min, and after the processing is completed, it is cut into pieces with a cutting length of 2-4mm, and then ground into powder to complete the pretreatment of bamboo fiber.

[0011] Furthermore, the first additive is prepared by the following method: acrylic resin and starch are added to a mixer, sodium polyacrylate is added to the mixer, the mixer is set to 1600-1800r / min and stirred for 8-12min, then cedar oil, chitosan, lavender essential oil, diatomaceous earth and pretreated bamboo fiber are added in sequence, the mixer is set to 800-1000r / min and stirred for 20-30min, the obtained product is subjected to ultrasonic treatment, set to 40-60Hz, and treated for 6-10min to obtain the first additive.

[0012] Furthermore, the second additive is prepared by the following method: menthol and citral are mixed in a container, deionized water is added into the container, the mass of the deionized water is 8 to 10 times the mass of menthol, the mixture is evenly mixed and stirred at room temperature for 30 to 40 minutes, then m-phenylenediamine and an active agent are added, the mixture in the container is heated in a water bath at a temperature of 50 to 60° C., and the mixture is kept warm and stirred for 12 to 16 minutes to prepare the second additive.

[0013] Furthermore, the active agent is sodium dodecylbenzene sulfonate.

[0014] In a second aspect, the present invention also provides a method for preparing a wood furniture paint, comprising the following steps: S1: Weigh polyvinyl chloride resin, water and polyurethane resin as needed and add them into a reactor. Set the temperature of the reactor to 140-160°C and the rotation speed to 600-800 r / min. Keep the mixture warm and stir for 10-20 minutes, and cool it to room temperature to obtain a first mixed solution. S2: The first additive, the second additive, the dispersant, the talcum powder, the leveling agent and the regulator are weighed into the first mixed liquid as required, and the reactor is set to stir at 1000-1200 r / min at room temperature for 10-20 min to obtain a second mixed liquid. The second mixed liquid is allowed to stand for 4-6 hours and then sieved through 200 mesh to obtain wood furniture paint.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by adding the first additive in the process of preparing wood furniture paint, the first additive uses acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil and diatomaceous earth as additives, among which the acrylic resin can form a continuous and dense protective film on the surface of the wood furniture, enhance the overall protective performance of the paint coating, have good barrier properties, and effectively improve the anti-corrosion performance of the paint.

[0016] 2. In the present invention, the rich porous structure of diatomaceous earth is utilized to make diatomaceous earth have good adsorption capacity. Diatomaceous earth can be filled in the paint coating to improve the density and hardness of the paint coating, enhance the mechanical properties of the coating, and make the coating less likely to be damaged by external factors, thereby effectively improving the wear resistance of the paint.

[0017] 3. In the present invention, through the pretreatment step of bamboo fiber, the bamboo fiber is processed into a uniform powder structure, so that the bamboo fiber can be evenly distributed in the paint. When the paint coating is subjected to external force, the bamboo fiber powder can serve as a stress concentration point to avoid excessive stress concentration in a local area and cause the paint coating to crack, thereby effectively improving the strength and wear resistance of the paint. DETAILED DESCRIPTION

[0018] 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.

[0019] It should be noted that the raw materials used in the following examples are all commercially available raw materials.

[0020] Embodiment 1

[0021] The invention comprises the following raw materials in parts by weight: 80 parts of polyvinyl chloride resin, 40 parts of water, 40 parts of polyurethane resin, 10 parts of first additive, 8 parts of second additive, 6 parts of dispersant, 6 parts of talc powder, 4 parts of leveling agent and 1 part of regulator; The raw materials of the first additive are composed of acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil, diatomaceous earth and sodium polyacrylate, and the mass ratio of the raw materials of the first additive is 1:0.6:0.2:0.2:0.2:0.1:0.1:0.1; The raw materials of the second additive are composed of menthol, citral, m-phenylenediamine and an active agent, and the mass ratio of the raw materials of the second additive is 1:0.8:0.1:0.1.

[0022] The dispersant is polyvinyl alcohol.

[0023] The leveling agent is polydimethylsiloxane.

[0024] The regulator is butoxyethanol.

[0025] The starch is esterified starch made from corn.

[0026] The bamboo fiber was pretreated. The pretreatment method was as follows: the bamboo fiber was spread flat on a tray and placed in an oven. The oven was set at 40°C and dried at 10°C. After the drying process, it was placed in a plasma generator with a power of 50W and nitrogen introduced at a flow rate of 10cm 3 / min, the vacuum degree is 20Pa, the processing time is 8min, and after the processing is completed, it is cut into pieces with a cutting length of 2mm, followed by grinding treatment to complete the pretreatment of the bamboo fiber.

[0027] The first additive is prepared by the following method: acrylic resin and starch are added to a mixer, sodium polyacrylate is added to the mixer, the mixer is set to 1600r / min and stirred for 8 minutes, then cedar oil, chitosan, lavender essential oil, diatomaceous earth and pretreated bamboo fiber are added in sequence, the mixer is set to 800r / min and stirred for 20 minutes, the obtained product is subjected to ultrasonic treatment, set to 40Hz, and treated for 6 minutes to prepare the first additive.

[0028] The second additive is prepared by the following method: menthol and citral are mixed in a container, deionized water is added into the container, the mass of the deionized water is 8 times the mass of the menthol, the mixture is evenly mixed and stirred at room temperature for 30 minutes, then m-phenylenediamine and an active agent are added, the mixture in the container is heated in a water bath at 50°C, and the mixture is kept warm and stirred for 12 minutes to prepare the second additive.

[0029] The active agent is sodium dodecylbenzene sulfonate.

[0030] The preparation method of wooden furniture paint comprises the following steps: S1: Weigh polyvinyl chloride resin, water and polyurethane resin as needed and add them into a reactor. Set the temperature of the reactor to 140°C and the speed to 600r / min. Keep the temperature and stir for 10 minutes. Cool to room temperature to obtain a first mixed solution. S2: The first additive, the second additive, the dispersant, the talcum powder, the leveling agent and the regulator are weighed into the first mixed liquid as required, and the reactor is set to stir at 1000r / min at room temperature for 10min to obtain a second mixed liquid. The second mixed liquid is allowed to stand for 4h and then sieved through 200 mesh to obtain wood furniture paint.

[0031] Embodiment 2

[0032] The invention comprises the following raw materials in parts by weight: 90 parts of polyvinyl chloride resin, 50 parts of water, 50 parts of polyurethane resin, 15 parts of first additive, 10 parts of second additive, 7 parts of dispersant, 7 parts of talc, 5 parts of leveling agent and 2 parts of regulator; The raw materials of the first additive are composed of acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil, diatomaceous earth and sodium polyacrylate, and the mass ratio of the raw materials of the first additive is 1:0.7:0.3:0.3:0.3:0.2:0.2:0.15; The raw materials of the second additive are composed of menthol, citral, m-phenylenediamine and an active agent, and the mass ratio of the raw materials of the second additive is 1:1:0.2:0.2.

[0033] Lauric acid is used as the dispersant.

[0034] Hydroxyethyl cellulose is used as the leveling agent.

[0035] The regulator is ethylene glycol monobutyl ether.

[0036] The starch is esterified starch made from corn.

[0037] The bamboo fiber was pretreated. The pretreatment method was as follows: the bamboo fiber was spread flat on a tray and sent to an oven. The oven was set at 50°C for drying at 15°C. After the drying process was completed, it was sent to a plasma generator with a power of 60W and nitrogen gas introduced at a flow rate of 15cm 3 / min, the vacuum degree is 25Pa, the processing time is 10min, and after the processing is completed, it is cut into pieces with a cutting length of 3mm, and then it is ground into powder to complete the pretreatment of bamboo fiber.

[0038] The first additive is prepared by the following method: acrylic resin and starch are added to a mixer, sodium polyacrylate is added to the mixer, the mixer is set to 1700r / min and stirred for 10 minutes, then cedar oil, chitosan, lavender essential oil, diatomaceous earth and pretreated bamboo fiber are added in sequence, the mixer is set to 1000r / min and stirred for 25 minutes, the obtained product is subjected to ultrasonic treatment, set to 50Hz, and treated for 8 minutes to prepare the first additive.

[0039] The second additive is prepared by the following method: menthol and citral are mixed in a container, deionized water is added into the container, the mass of the deionized water is 9 times the mass of the menthol, the mixture is evenly mixed and stirred at room temperature for 35 minutes, then m-phenylenediamine and an active agent are added, the mixture in the container is heated in a water bath at a temperature of 55° C., and the mixture is kept warm and stirred for 14 minutes to prepare the second additive.

[0040] The active agent is sodium dodecylbenzene sulfonate.

[0041] The preparation method of wooden furniture paint comprises the following steps: S1: Weigh polyvinyl chloride resin, water and polyurethane resin as needed and add them into a reactor. Set the temperature of the reactor to 150°C and the speed to 700r / min. Keep the mixture warm and stir for 15 minutes. Cool the mixture to room temperature to obtain a first mixed solution. S2: The first additive, the second additive, the dispersant, the talcum powder, the leveling agent and the regulator are weighed into the first mixed liquid as required, and the reactor is set to stir at 1100r / min at room temperature for 15min to obtain a second mixed liquid. The second mixed liquid is allowed to stand for 5h and then sieved through 200 mesh to obtain wood furniture paint.

[0042] Embodiment 3

[0043] The invention comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride resin, 60 parts of water, 60 parts of polyurethane resin, 20 parts of first additive, 12 parts of second additive, 8 parts of dispersant, 8 parts of talc powder, 6 parts of leveling agent and 3 parts of regulator; The raw materials of the first additive are composed of acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil, diatomaceous earth and sodium polyacrylate, and the mass ratio of the raw materials of the first additive is 1:0.8:0.4:0.4:0.4:0.3:0.3:0.2; The raw materials of the second additive are composed of menthol, citral, m-phenylenediamine and an active agent, and the mass ratio of the raw materials of the second additive is 1:1.2:0.3:0.3.

[0044] The dispersant is stearic acid.

[0045] Hydroxyethyl cellulose is used as the leveling agent.

[0046] Ethylene glycol is selected as the regulator.

[0047] The starch is esterified starch made from corn.

[0048] The bamboo fiber was pretreated. The pretreatment method was as follows: the bamboo fiber was spread flat on a tray and sent to an oven. The oven was set at 60°C for drying at 20°C. After the drying process was completed, it was sent to a plasma generator with a power of 70W and nitrogen gas introduced at a flow rate of 20cm 3 / min, the vacuum degree is 30Pa, the processing time is 12min, and after the processing is completed, it is cut into pieces with a cutting length of 4mm, followed by grinding treatment to complete the pretreatment of the bamboo fiber.

[0049] The first additive is prepared by the following method: acrylic resin and starch are added to a mixer, sodium polyacrylate is added to the mixer, the mixer is set to 1800r / min and stirred for 12 minutes, then cedar oil, chitosan, lavender essential oil, diatomaceous earth and pretreated bamboo fiber are added in sequence, the mixer is set to 1000r / min and stirred for 30 minutes, the obtained product is subjected to ultrasonic treatment, set to 60Hz, and treated for 10 minutes to prepare the first additive.

[0050] The second additive is prepared by the following method: menthol and citral are mixed in a container, deionized water is added into the container, the mass of the deionized water is 10 times the mass of the menthol, the mixture is evenly mixed and stirred at room temperature for 40 minutes, then m-phenylenediamine and an active agent are added, the mixture in the container is heated in a water bath at 60°C, and the mixture is kept warm and stirred for 16 minutes to prepare the second additive.

[0051] Sodium dodecylbenzene sulfonate is selected as the active agent.

[0052] The preparation method of wooden furniture paint comprises the following steps: S1: Weigh polyvinyl chloride resin, water and polyurethane resin as needed and add them into a reactor. Set the temperature of the reactor to 160°C and the speed to 800r / min. Keep the temperature and stir for 20 minutes. Cool to room temperature to obtain a first mixed solution. S2: The first additive, the second additive, the dispersant, the talcum powder, the leveling agent and the regulator are weighed into the first mixed liquid as required, and the reactor is set to stir at 1200r / min at room temperature for 20min to obtain a second mixed liquid. The second mixed liquid is allowed to stand for 6h and then sieved through 200 mesh to obtain wood furniture paint.

[0053] Comparative Example 1: The difference between this comparative example and Example 1 is that this comparative example does not contain bamboo fiber.

[0054] Comparative Example 2: The difference between this comparative example and Example 1 is that in this comparative example, an equal amount of polyurethane resin is used to replace the first additive.

[0055] Comparative Example 3: The difference between this comparative example and Example 1 is that this comparative example does not contain the second additive.

[0056] Comparative Example 4: This comparative example is different from Example 1 in that: this comparative example does not contain the first additive.

[0057] Performance test: The performance test was performed on the wood furniture paints prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4, and the obtained test data were recorded in the following table:

[0058] In the performance test, the antibacterial rate test adopts the test method in GB / T 21866-2008 to perform performance tests on the wood furniture paints prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4; The wear resistance test adopts the test method in GB / T 23999-2009 to perform performance tests on the wood furniture paints prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4, wherein the wear resistance test data is the wear amount value of the wood furniture paint.

[0059] It can be seen that the antibacterial performance of the wood furniture paints prepared in Comparative Examples 1, 2, 3 and 4 is lower than that in Examples 1, 2 and 3, and the wear resistance (wear amount) of the wood furniture paints prepared in Comparative Examples 1, 2, 3 and 4 is higher than that in Examples 1, 2 and 3; this shows that: by adding the first additive in the process of preparing the wood furniture paint, the first additive uses acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil and diatomaceous earth as additives, among which acrylic resin can form a continuous and dense protective film on the surface of wooden furniture, enhance the overall protective performance of the paint coating, have good barrier properties, and effectively improve the paint's anti-bacterial performance. Corrosion resistance, using the rich porous structure of diatomite, diatomite has good adsorption capacity, diatomite can be filled in the paint coating, improve the density and hardness of the paint coating, enhance the mechanical properties of the coating, make the coating less likely to be damaged by external factors, thereby effectively improving the wear resistance of the paint, through the pretreatment step of bamboo fiber, bamboo fiber is processed into a uniform powder structure, so that the bamboo fiber can be evenly distributed in the paint, when the paint coating is subjected to external force, bamboo fiber powder can be used as a stress concentration point to avoid excessive stress concentration in the local area and cause the paint coating to rupture, effectively improving the strength and wear resistance of the paint.

[0060] By comparing and analyzing the relevant data in the table, it can be seen that the wood furniture paint prepared by the present invention not only has good antibacterial properties, but also has excellent wear resistance. This shows that the wood furniture paint and the preparation method thereof provided by the present invention have broader market prospects and are more suitable for promotion.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A paint for wooden furniture, characterized in that: The invention comprises the following raw materials in parts by weight: 80 to 100 parts of polyvinyl chloride resin, 40 to 60 parts of water, 40 to 60 parts of polyurethane resin, 10 to 20 parts of first additive, 8 to 12 parts of second additive, 6 to 8 parts of dispersant, 6 to 8 parts of talc powder, 4 to 6 parts of leveling agent and 1 to 3 parts of regulator; The raw materials of the first additive are composed of acrylic resin, starch, bamboo fiber, fragrant fir oil, chitosan, lavender essential oil, diatomaceous earth and sodium polyacrylate, and the mass ratio of the raw materials of the first additive is 1: (0.6-0.8): (0.2-0.4): (0.2-0.4): (0.2-0.4): (0.1-0.3): (0.1-0.3): (0.1-0.2); The raw materials of the second additive are composed of menthol, citral, m-phenylenediamine and an active agent, and the mass ratio of the raw materials of the second additive is 1: (0.8-1.2): (0.1-0.3): (0.1-0.3).

2. The wood furniture paint according to claim 1, characterized in that: The dispersant is selected from at least one of polyvinyl alcohol, lauric acid and stearic acid.

3. The wood furniture paint according to claim 1, characterized in that: The leveling agent is selected from at least one of polydimethylsiloxane and hydroxyethyl cellulose.

4. The wood furniture paint according to claim 1, characterized in that: The regulator is selected from at least one of butoxyethanol, ethylene glycol monobutyl ether and ethylene glycol.

5. The wood furniture paint according to claim 1, characterized in that: The starch is esterified starch whose raw material is corn.

6. The wood furniture paint according to claim 1, characterized in that: The bamboo fiber is pretreated by the following method: the bamboo fiber is spread flat on a tray, sent into an oven, the oven is set at 40-60°C for drying at 10-20°C, and after the drying is completed, it is sent into a plasma generator, the power is set at 50-70W, and nitrogen is introduced at a flow rate of 10-20cm 3 / min, the vacuum degree is 20-30Pa, the processing time is 8-12min, and after the processing is completed, it is cut into pieces with a cutting length of 2-4mm, and then ground into powder to complete the pretreatment of bamboo fiber.

7. The wood furniture paint according to claim 1, characterized in that: The first additive is prepared by the following method: acrylic resin and starch are added to a mixer, sodium polyacrylate is added to the mixer, the mixer is set to 1600-1800r / min and stirred for 8-12min, then cedar oil, chitosan, lavender essential oil, diatomaceous earth and pretreated bamboo fiber are added in sequence, the mixer is set to 800-1000r / min and stirred for 20-30min, the obtained product is subjected to ultrasonic treatment, set to 40-60Hz, and treated for 6-10min to prepare the first additive.

8. The wood furniture paint according to claim 1, characterized in that: The second additive is prepared by the following method: menthol and citral are mixed in a container, deionized water is added into the container, the mass of the deionized water is 8 to 10 times the mass of menthol, the mixture is evenly mixed and stirred at room temperature for 30 to 40 minutes, then m-phenylenediamine and an active agent are added, the mixture in the container is heated in a water bath at a temperature of 50 to 60° C., and the mixture is kept warm and stirred for 12 to 16 minutes to prepare the second additive.

9. The wood furniture paint according to claim 1, characterized in that: The active agent is sodium dodecylbenzene sulfonate.

10. A method for preparing a wood furniture paint according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Weigh polyvinyl chloride resin, water and polyurethane resin as needed and add them into a reactor. Set the temperature of the reactor to 140-160°C and the rotation speed to 600-800 r / min. Keep the mixture warm and stir for 10-20 minutes, and cool it to room temperature to obtain a first mixed solution. S2: The first additive, the second additive, the dispersant, the talcum powder, the leveling agent and the regulator are weighed into the first mixed liquid as required, and the reactor is set to stir at 1000-1200 r / min at room temperature for 10-20 min to obtain a second mixed liquid. The second mixed liquid is allowed to stand for 4-6 hours and then sieved through 200 mesh to obtain wood furniture paint.

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