Environment-friendly water-based wood wax oil as well as preparation method and application thereof

Abstract

The invention relates to the technical field of wood lacquer, and particularly discloses environment-friendly water-based wood wax oil as well as a preparation method and application thereof. The environment-friendly water-based wood wax oil comprises the following components in parts by weight: 50-60 parts of a water dispersible linseed oil polymer; 36 to 44 parts of water; 0.2 to 0.4 part of a defoaming agent; 0.2 to 0.4 part of a drier; 3-4 parts of fluorine modified wax powder; 0.2 to 0.4 part of a wetting agent; 0.5 to 0.7 part of a thickening agent; the water dispersible linseed oil polymer is Dedole W 'sol31A; and the fluorine modified wax powder is Mining EDAPLAN5510. The preparation method comprises the following steps: preheating the water-dispersible linseed oil polymer, adding the water and the fluorine-modified wax powder, and stirring for sufficient fusion; and adding the defoaming agent, the drier, the wetting agent and the thickening agent in the stirring process, and uniformly mixing to obtain the product. After the environment-friendly water-based wood wax oil is applied, even if the environment-friendly water-based wood wax oil is exposed in the natural environment for a long time, the prominent combination stability can be kept, the phenomena of cracking and peeling are not prone to occurring, the overall service life is remarkably prolonged, and the appearance quality is remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of wood coatings, and more specifically, to an environmentally friendly water-based wood wax oil and a preparation method and application thereof. Background Art

[0003] Water-based wood wax oil is a kind of wood wax oil with water as solvent. It is also an environmentally friendly wood paint. It is made by mixing wood wax, resin, pigment, filler and additives together, and then making water-based paint through emulsification or dispersion technology. Since the "oil" in wood wax oil can penetrate into the interior of the wood and deeply moisturize and maintain the wood, and the "wax" can be closely combined with the wood fiber, enhancing the surface hardness and waterproof and anti-fouling, wood wax oil is widely used in furniture, flooring, doors and windows, garden landscapes and other fields, which can protect the wood and improve its quality and service life. At the same time, water-based wood wax oil adopts a water-based formula, and most of its ingredients are derived from natural plants and chemical synthesis. It is non-toxic and tasteless, does not contain harmful substances, and meets environmental protection standards.

[0004] Regarding the above-mentioned related technologies, the inventors believe that although the existing water-based wood wax oil reduces the emission of harmful substances, it is still difficult to strike a balance between environmental protection and high performance in practical applications, especially under outdoor use conditions. Long-term exposure to the natural environment is prone to cracking and peeling, which seriously affects the service life and appearance quality.

[0005] Therefore, it is urgent to propose a solution to solve the above technical problems. Summary of the invention

[0006] In order to significantly improve the stability of water-based wood wax oil after long-term exposure to the natural environment, the present application provides an environmentally friendly water-based wood wax oil and a preparation method and application thereof.

[0007] In the first aspect, the present application provides an environmentally friendly water-based wood wax oil, which adopts the following technical solution: An environmentally friendly water-based wood wax oil comprises the following components in parts by weight: 50-60 parts of water-dispersible linseed oil polymer; 36-44 parts of water; Defoaming agent 0.2-0.4 parts; 0.2-0.4 parts of drying agent; 3-4 parts of fluorine-modified wax powder; Wetting agent 0.2-0.4 parts; Thickener 0.5-0.7 parts; The water-dispersible linseed oil polymer is Defula W'sol31A; The fluorine-modified wax powder is Mingling EDAPLAN5510.

[0008] By adopting the above technical solution, the water-dispersible linseed oil polymer is rich in linolenic acid and conjugated fatty acid segments, which can form a mesh cross-linked network during the curing process, increase the hardness and elastic modulus of the coating, and the above water-dispersible linseed oil polymer has excellent wettability and adhesion to the substrate, which can ensure that the wood wax oil forms a firm film on the wood surface and maintains good stability when exposed to the natural environment for a long time. Fluorine-modified wax powder has extremely low surface energy and can form a lubricating film on the coating surface, reducing friction and wear, and bringing excellent weather resistance. At the same time, when the above-mentioned water-dispersible linseed oil polymer and fluorine-modified wax powder are used in combination, in addition to being able to exert the above-mentioned excellent self-effects, with the help of the excellent solubility of the water-dispersible linseed oil polymer, after combining with the fluorine-modified wax powder, it can form a stable protective film, and can show excellent compatibility with other raw materials, so that the stability of the environmentally friendly water-based wood wax oil system is significantly improved, and after application, even if it is exposed to the natural environment for a long time, it can maintain a relatively outstanding bonding stability, and is not prone to cracking and peeling, and the overall service life and appearance quality are significantly improved.

[0009] Preferably, the weight ratio of the water-dispersible linseed oil polymer to the fluorine-modified wax powder is 110:7.

[0010] By adopting the above technical scheme, when the water-dispersible linseed oil polymer and fluorine-modified wax powder in the above weight ratio are mixed and used, the corresponding effect of the coordination system formed between them is better, so that the obtained environmentally friendly water-based wood wax oil has excellent overall stability after use when exposed to the natural environment for a long time.

[0011] Preferably, the defoamer is any one of an organosilicon defoamer, a polyether defoamer, a mineral oil defoamer and a polyether-modified silicon defoamer.

[0012] By adopting the above technical scheme, the defoaming agent ensures the uniformity and stability of the mixed medium by suppressing and eliminating the foam in the liquid; in the environmentally friendly water-based wood wax oil, the defoaming agent can reduce or eliminate the foam, improve the coating performance and shorten the drying time, so as to ensure the stable application quality of the product; and the above-mentioned types of defoaming agents are suitable for the preparation of environmentally friendly water-based wood wax oil, and can exert excellent and stable corresponding effects.

[0013] Preferably, the wetting agent is any one of a polyether wetting agent, a polyester wetting agent, an alkylbenzene sulfonate wetting agent and a silicone wetting agent.

[0014] By adopting the above technical solution, the wetting agent is a substance that can reduce surface tension and can make liquids more easily wet solid surfaces. Adding a wetting agent to wood wax oil can improve its wetting properties, making it easier to wet the surface of mechanical parts and exert a better lubrication effect. The above types of wetting agents are all suitable for the preparation of environmentally friendly water-based wood wax oil and can exert excellent and stable corresponding effects.

[0015] Preferably, the thickener is any one of an inorganic thickener, a cellulose thickener, a polyacrylate thickener and a polyurethane thickener.

[0016] By adopting the above technical solution, the thickener can improve the rheological properties of the environmentally friendly water-based wood wax oil, making it thicker when still and having good fluidity during construction, and by forming a certain network structure in the environmentally friendly water-based wood wax oil, improve the surface coating performance, help reduce cracking and shrinkage, and thus ensure uniform distribution and construction stability. The above types of thickeners are all suitable for the preparation of environmentally friendly water-based wood wax oil, and can play an excellent and stable corresponding effect.

[0017] Preferably, the following components are included in parts by weight: 55 parts of water-dispersible linseed oil polymer; 40 parts water; 0.3 parts of defoaming agent; 0.3 parts of drying agent; 3.5 parts of fluorine-modified wax powder; Wetting agent 0.3 parts; Thickener 0.6 parts.

[0018] By adopting the above technical scheme, when the components in the above amounts are combined, the mixed system formed is relatively stable, and the components in this system can exert a relatively excellent combination effect, thereby obtaining an environmentally friendly water-based wood wax oil with better quality.

[0019] Preferably, the components of the environmentally friendly water-based wood wax oil are further added with 2-3 parts by weight of a functional additive, the functional additive is composed of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin, and the weight ratio of the modified nano-silicon dioxide, chitosan solution and water-based alkyd resin is (1.3-1.7):1:(2.6-3.5); The modified nano silicon dioxide is prepared by the following steps: The nano-silica raw material is mixed with toluene solvent by ultrasonication to obtain a nano-silica suspension; the nano-silica suspension is then heated, a silane coupling agent is added during the stirring process, and after the reaction is completed, the suspension is centrifuged, washed and dried to obtain modified nano-silica.

[0020] By adopting the above technical scheme, chitosan has good water solubility and can form a stable colloidal system in environmentally friendly water-based wood wax oil. Water-based alkyd resin is a polyester synthesized from fatty acids or vegetable oil acids and polyols and polyacids. By introducing hydrophilic groups or surfactants in the structure, it can be uniformly and stably dissolved or dispersed in water. When it contacts oxygen in the air, it undergoes a self-crosslinking reaction to form a membrane structure system with stable results. At the same time, when chitosan solution and water-based alkyd resin are mixed and matched, the environmentally friendly water-based wood wax oil can form an adaptively regulated membrane network structure system inside after application; and modified nano-silica has excellent dispersibility and interfacial compatibility, which is distributed in the above-mentioned membrane network structure system, so that the modified nano-silica, chitosan solution and water-based alkyd resin can play an excellent composite synergistic role, thereby significantly improving the stability of water-based wood wax oil after long-term exposure to the natural environment.

[0021] Preferably, the weight ratio of the modified nano-silica, chitosan solution and water-based alkyd resin is 1.5:1:2.9.

[0022] By adopting the above technical scheme, when the modified nano-silica, chitosan solution and water-based alkyd resin in the above weight ratio are used to form a functional additive, the corresponding effect in the environmentally friendly water-based wood wax oil is better, making the functional additive more significant in improving the application stability of the environmentally friendly water-based wood wax oil.

[0023] In a second aspect, the present application provides a method for preparing an environmentally friendly water-based wood wax oil, using the following technical solution: A method for preparing an environmentally friendly water-based wood wax oil, comprising the following steps: (1) preparing raw materials including water-dispersible linseed oil polymer, water, defoamer, drier, fluorine-modified wax powder, wetting agent and thickener according to a proportion; (2) After preheating the water-dispersible linseed oil polymer, water and fluorine-modified wax powder are added and stirred to fully blend; then, a defoamer, a drying agent, a wetting agent and a thickener are added during the stirring process and mixed evenly to obtain an environmentally friendly water-based wood wax oil.

[0024] By adopting the above technical scheme, the above operation is relatively simple and convenient, and each raw material is added and used in steps, which is also conducive to quality control during the process. It can also make the raw materials fully combined and play a better coordinated role, thereby obtaining an environmentally friendly water-based wood wax oil with excellent and stable application quality, which is also suitable for large-scale industrial production as a whole.

[0025] In a third aspect, the present application provides an application of an environmentally friendly water-based wood wax oil in wooden handicrafts.

[0026] In summary, this application has the following beneficial effects: 1. This application uses Defule W'sol31A water-dispersible linseed oil polymer and Mingling EDAPLAN5510 fluorine-modified wax powder in combination, which can exert excellent coordination effect, not only forming a stable protective film, but also showing excellent compatibility with other raw materials, so that the stability of the environmentally friendly water-based wood wax oil system is significantly improved, and after application, it can maintain excellent stability even if it is exposed to the natural environment for a long time; 2. This application adds functional additives consisting of modified nano-silica, chitosan solution and water-based alkyd resin, so that the environmentally friendly water-based wood wax oil can form an adaptively adjustable membrane network structure system inside after application, thereby further improving the stability of the water-based wood wax oil after long-term exposure to the natural environment. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in combination with preparation examples, embodiments and comparative examples.

[0028] Unless otherwise specified, the raw materials used in the preparation examples, embodiments and comparative examples of the present application are commercially available: The water-dispersible linseed oil polymer is W'sol31A from Germany; The fluorine-modified wax powder is EDAPLAN5510 from Germany; The organosilicon defoamer is TEGO901W from German Digo Chemical; The drying agent is American Berican E1101; The silicone wetting agent is TEGO4200 from German Digo Chemical; The polyurethane thickener is German Mingling associative polyurethane thickener PUR44; Nanosilica is Evonik’s AEROSIL 200; The chitosan solution is a hydroxypropyl chitosan aqueous solution with a specification of 0.4 g / L; The water-based alkyd resin is BLJ-3075K from Baolijia.

[0029] Preparation examples of raw materials and / or intermediates Preparation Example 1 A modified nano-silicon dioxide is prepared by the following steps: The nano-silica raw material and toluene solvent were mixed by ultrasound at a weight ratio of 1:280 to obtain a nano-silica suspension; the nano-silica suspension was then heated to 70° C., a silane coupling agent was added during the stirring process, and after the reaction was completed for 8 hours, the suspension was centrifuged, washed and dried to obtain modified nano-silica.

[0030] Note: The amount of silane coupling agent used in the above operation is 3% of the weight of the nano-silicon dioxide raw material. Example

[0031] Example 1 An environmentally friendly water-based wood wax oil, the components and their corresponding weights of which are shown in Table 1, is prepared by the following steps: (1) preparing raw materials including water-dispersible linseed oil polymer, water, defoamer, drier, fluorine-modified wax powder, wetting agent and thickener according to a proportion; (2) After preheating the water-dispersible linseed oil polymer to 35° C., water and fluorine-modified wax powder are added and stirred to fully blend; then, a defoamer, a drying agent, a wetting agent and a thickener are added during the stirring process and mixed evenly to obtain an environmentally friendly water-based wood wax oil.

[0032] Note: In the above operation, the water-dispersible linseed oil polymer is Defula W'sol31A, the fluorine-modified wax powder is Mingling EDAPLAN5510; the defoaming agent is a silicone defoaming agent; the wetting agent is a silicone wetting agent; and the thickener is a polyurethane thickener.

[0033] Example 2-3 An environmentally friendly water-based wood wax oil, which is different from Example 1 in that its components and their corresponding weights are shown in Table 1.

[0034] Table 1 Components and their weight parts in Examples 1-3 (kg / part) Example 4 An environmentally friendly water-based wood wax oil is different from Example 1 in that the total amount of water-dispersible linseed oil polymer and fluorine-modified wax powder remains unchanged, and the weight ratio of the two is adjusted to 110:8.

[0035] Example 5 An environmentally friendly water-based wood wax oil is different from Example 1 in that the total amount of water-dispersible linseed oil polymer and fluorine-modified wax powder remains unchanged, and the weight ratio of the two is adjusted to 108:7.

[0036] Example 6 An environmentally friendly water-based wood wax oil, which is different from Example 1 in that 2.5 parts by weight of a functional additive are further added, and the functional additive is composed of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin in a weight ratio of 1.5:1:2.9; the functional additive and fluorine-modified wax powder are added together, and the modified nano-silicon dioxide is obtained in Preparation Example 1.

[0037] Example 7 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that the weight portion of the functional additive added is 2 parts.

[0038] Example 8 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that the weight parts of the functional additive added are 3 parts.

[0039] Example 9 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that the functional additive consists of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin in a weight ratio of 1.3:1:2.6.

[0040] Example 10 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that the functional additive consists of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin in a weight ratio of 1.7:1:3.5.

[0041] Embodiment 11 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that the functional additive consists of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin in a weight ratio of 1.5:1:2.9.05.

[0042] Example 12 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that modified nano-silicon dioxide and chitosan solution are not used in the components.

[0043] Example 13 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that modified nano-silicon dioxide and water-based alkyd resin are not used in the components.

[0044] Embodiment 14 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that no chitosan solution or water-based alkyd resin is used in the components.

[0045] Embodiment 15 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that no modified nano-silicon dioxide is used in the component.

[0046] Example 16 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that no chitosan solution is used in the components.

[0047] Embodiment 17 An environmentally friendly water-based wood wax oil, which is different from Example 6 in that no water-based alkyd resin is used in the components.

[0048] Comparative Example Comparative Example 1 An environmentally friendly water-based wood wax oil, which is different from Example 1 in that the fluorine-modified wax powder is replaced with commercially available Honeywell wax powder A-C6702.

[0049] Comparative Example 2 An environmentally friendly water-based wood wax oil, which is different from Example 1 in that the water-dispersible linseed oil polymer of equal quality is replaced by commercially available water-based linseed oil AZ-588.

[0050] Performance test test samples: The environmentally friendly water-based wood wax oil obtained in Example 1-17 was used as test sample 1-17, and the environmentally friendly water-based wood wax oil obtained in Comparative Example 1-2 was used as control sample 1-2.

[0051] Test method: According to the content of standard GB / T 9286-1998 "Test method for adhesion of paint and varnish films", a wooden substrate is selected and environmentally friendly water-based wood wax oil is used to make standard samples.

[0052] Adhesion test: Use a tape with an adhesive strength of 10N, take a standard sample, and use a sharp blade to draw lines on its surface. The lines penetrate the coating and reach the substrate, and the distance between two adjacent lines is 0.1mm. After completing the longitudinal and transverse cross-scribing, stick the above tape to the surface of the standard sample so that it fits tightly without generating bubbles. Then peel off the tape and calculate the proportion of the adhesive area. The higher the proportion, the worse the bonding performance of the environmentally friendly water-based wood wax oil after application.

[0053] Aging test: The standard sample was placed in a constant temperature and humidity test chamber, the temperature and humidity were set to 85°C and 85% RH respectively, the test time was 1000h, and the simulated light intensity was 0.95W / m 2 , choose UVA-340 lamp.

[0054] The test value obtained by subjecting the standard sample to the above adhesion test is recorded as A; then the standard sample is subjected to the above aging test, and the test value obtained by subjecting the standard sample to the above adhesion test in the same manner is recorded as B; the adhesion change rate is calculated, adhesion change rate = (BA) / A, and the greater the adhesion change rate, the worse the stability of the water-based wood wax oil after long-term exposure to the natural environment.

[0055] After completing the above tests on test samples 1-17 and control samples 1-2 in sequence, the corresponding results are recorded in Table 2.

[0056] Table 2 Test results of test samples 1-17 and control samples 1-2 sample Adhesion change rate (%) Test sample 1 27.5 Test sample 2 29.1 Test sample 3 28.6 Test sample 4 28.1 Test sample 5 28.3 Test sample 6 10.2 Test sample 7 10.9 Test sample 8 10.6 Test sample 9 11.0 Test sample 10 10.8 Test sample 11 10.5 Test sample 12 22.9 Test sample 13 23.3 Test sample 14 22.1 Test sample 15 18.7 Test sample 16 17.8 Test sample 17 18.2 Control sample 1 85.7 Control sample 2 67.3 From Examples 1-3 and Comparative Examples 1-2 and Table 2, it can be seen that the present application uses the combined use of Defula W'sol31A water-dispersible linseed oil polymer and Mingling EDAPLAN5510 fluorine-modified wax powder to exert an excellent coordination effect, so that after application, the adhesion change rate of the environmentally friendly water-based wood wax oil obtained through the above test is low, indicating that its application stability after long-term exposure to the natural environment is better; and if any one of Defula W'sol31A water-dispersible linseed oil polymer and Mingling EDAPLAN5510 fluorine-modified wax powder is replaced by a commercially available product, it is found that the application stability of the environmentally friendly water-based wood wax oil will be significantly reduced, and the adhesion change rate obtained through the market test will also be significantly increased.

[0057] It can be seen from Example 1 and Examples 4-5 and Table 2 that when the weight ratio of the water-dispersible linseed oil polymer to the fluorine-modified wax powder is 110:7, the corresponding effect of the coordination system formed therebetween is better, so that the obtained environmentally friendly water-based wood wax oil exhibits better stability when exposed to the natural environment for a long time.

[0058] It can be seen from Example 1 and Example 6-11 and Table 2 that the present application can further improve the stability of water-based wood wax oil after long-term exposure to the natural environment by adding a functional additive composed of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin, and the adhesion change rate obtained by the above test will also be significantly reduced; wherein, when the weight ratio of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin is 1.5:1:2.9, the functional additive has a more significant effect on the application stability of environmentally friendly water-based wood wax oil. It can be seen from Example 12-17 and Table 2 that if only any one or two of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin are used for addition and use, although the adhesion change rate can be reduced, the reduction is limited, and the effects are only simply superimposed on each other, which is far less than the excellent effect brought by the compounding of the three. It can be seen that the coordination between modified nano-silicon dioxide, chitosan solution and water-based alkyd resin can bring a significant improvement effect of 1+1>2.

[0059] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An environmentally friendly water-based wood wax oil, characterized in that: Contains the following components in parts by weight: 50-60 parts of water-dispersible linseed oil polymer; 36-44 parts of water; Defoaming agent 0.2-0.4 parts; 0.2-0.4 parts of drying agent; 3-4 parts of fluorine-modified wax powder; Wetting agent 0.2-0.4 parts; Thickener 0.5-0.7 parts; The water-dispersible linseed oil polymer is Defula W'sol31A; The fluorine-modified wax powder is Mingling EDAPLAN5510.

2. The environmentally friendly water-based wood wax oil according to claim 1, characterized in that: The weight ratio of the water-dispersible linseed oil polymer to the fluorine-modified wax powder is 110:

7.

3. The environmentally friendly water-based wood wax oil according to claim 1, characterized in that: The defoamer is any one of an organosilicon defoamer, a polyether defoamer, a mineral oil defoamer and a polyether-modified silicon defoamer.

4. The environmentally friendly water-based wood wax oil according to claim 1, characterized in that: The wetting agent is any one of a polyether wetting agent, a polyester wetting agent, an alkylbenzene sulfonate wetting agent and a silicone wetting agent.

5. The environmentally friendly water-based wood wax oil according to claim 1, characterized in that: The thickener is any one of an inorganic thickener, a cellulose thickener, a polyacrylate thickener and a polyurethane thickener.

6. The environmentally friendly water-based wood wax oil according to claim 1, characterized in that: Contains the following components in parts by weight: 55 parts of water-dispersible linseed oil polymer; 40 parts water; 0.3 parts of defoaming agent; 0.3 parts of drying agent; 3.5 parts of fluorine-modified wax powder; Wetting agent 0.3 parts; Thickener 0.6 parts.

7. The environmentally friendly water-based wood wax oil according to claim 1, characterized in that: The components of the environmentally friendly water-based wood wax oil are further added with 2-3 parts by weight of a functional additive, the functional additive is composed of modified nano-silicon dioxide, chitosan solution and water-based alkyd resin, and the weight ratio of the modified nano-silicon dioxide, chitosan solution and water-based alkyd resin is (1.3-1.7):1:(2.6-3.5); The modified nano silicon dioxide is prepared by the following steps: The nano-silica raw material is mixed with toluene solvent by ultrasonication to obtain a nano-silica suspension; the nano-silica suspension is then heated, a silane coupling agent is added during the stirring process, and after the reaction is completed, the suspension is centrifuged, washed and dried to obtain modified nano-silica.

8. The environmentally friendly water-based wood wax oil according to claim 7, characterized in that: The weight ratio of the modified nano-silica, chitosan solution and water-based alkyd resin is 1.5:1:2.

9.

9. The method for preparing the environmentally friendly water-based wood wax oil according to claim 1, characterized in that: The following steps are involved: (1) preparing raw materials including water-dispersible linseed oil polymer, water, defoaming agent, drying agent, fluorine-modified wax powder, wetting agent and thickener according to the proportion; (2) After preheating the water-dispersible linseed oil polymer, water and fluorine-modified wax powder are added and stirred to fully blend; then, a defoamer, a drying agent, a wetting agent and a thickener are added during the stirring process and mixed evenly to obtain an environmentally friendly water-based wood wax oil.

10. Use of the environmentally friendly water-based wood wax oil according to any one of claims 1 to 8 in wooden handicrafts.

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