Novel outdoor environment-friendly water-based wood wax oil and preparation method thereof

Abstract

The invention relates to the technical field of coatings, in particular to outdoor novel environment-friendly water-based wood wax oil and a preparation method thereof.The outdoor novel environment-friendly water-based wood wax oil comprises, by weight, 40-70 parts of plant oil-based water-based polyurethane emulsion, 10-20 parts of water-based wax emulsion, 2-5 parts of nano titanium dioxide sol, 2-8 parts of nano-silicon dioxide sol and 10-15 parts of coalescing agents. The water-based paint is prepared from the following components in parts by weight: 0.3-0.8 part of a water-based drier, 0.2-0.5 part of a water-based bactericidal mildew inhibitor, 0.1-0.5 part of a water The water-based paint is a water-based paint product, adopts low-VOC, non-toxic and harmless raw materials, and ensures the safety to human bodies and the environment. The paint has excellent hydrophobicity and water resistance, can effectively prevent moisture permeation, and realizes deep corrosion resistance and moisture resistance of wood. And meanwhile, the high hardness and wear resistance ensure that the paint film is durable and easy to clean, and the natural and attractive appearance of the wood is maintained. In addition, due to excellent heat resistance and aging resistance, the wood can resist erosion of atrocious weather and environmental factors, and the wood can be protected for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to a novel environmentally friendly water-based wood wax oil for outdoor use and a preparation method thereof. Background Art

[0002] In today's era, wood has become a raw material widely used in natural decoration materials and furniture products due to its unique properties and charming grain beauty. Wood has a natural affinity and can create a warm and natural atmosphere. It is favored in various architectural decoration and furniture manufacturing fields. However, wood is a relatively sensitive material and is easily affected by external environmental factors. For example, light can change the color of wood; the erosion of moisture and oxygen may cause discoloration and weathering of wood; high temperature and high humidity environment can easily cause corrosion on the wood surface. These defects not only affect the beauty of wood, but also reduce its service life and use value.

[0003] In order to protect the wood and prevent these defects, coating the wood surface is the most common and effective method. Among the many coating materials, wood wax oil stands out with its unique advantages. Wood wax oil is based on natural plant oil and plant wax. This natural ingredient makes it very suitable for decoration fields that have high requirements for environmental protection and durability. In the past, wood wax oil was mainly used in children's rooms, star-rated hotels, villas, resorts, and antique buildings, which have extremely high requirements for the environmental protection and quality of decoration materials.

[0004] Although wood wax oil has many advantages, it still faces many problems in the actual coating implementation process. On the one hand, the physical and chemical properties of wood wax oil coating are relatively low, which makes it difficult to provide sufficient protection when facing interference from external factors; on the other hand, the cost of wood wax oil is relatively high, which to a certain extent limits its wide application; in addition, the time required for wood wax oil to completely cure is relatively long, which not only affects the construction efficiency, but may also lead to unsatisfactory coating effects due to various uncontrollable factors during the curing process. Summary of the invention

[0005] In view of this, the present invention provides a new type of environmentally friendly water-based wood wax oil for outdoor use and a preparation method thereof. The present invention can significantly improve the wear resistance and aging resistance of the wood wax oil coating, thereby maintaining various good properties of the wood for a long time. The present invention can effectively prevent the wood from drying and cracking, and endow the wood with excellent properties such as air permeability, drying, anti-corrosion, and insect resistance, thereby comprehensively improving the use quality of the wood.

[0006] The technical solution of the present invention is: A novel environmentally friendly water-based wood wax oil for outdoor use, characterized in that it comprises the following components in parts by weight: 40-70 of vegetable oil-based water-based polyurethane emulsion, 10-20 of water-based wax emulsion, 2-5 of nano titanium dioxide sol, 2-8 of nano silicon dioxide sol, 10-15 of film-forming aid, 0.3-0.8 of water-based drying agent, 0.2-0.5 of water-based bactericidal and mildewproof agent, 0.1-0.5 of water-based defoaming agent, and 5-15 of purified water.

[0007] The present invention is a water-based paint product, which uses low-VOC, non-toxic and harmless raw materials to ensure safety for human body and environment. Its excellent hydrophobicity and water resistance can effectively prevent water penetration, and realize deep anti-corrosion and moisture-proof of wood. At the same time, high hardness and wear resistance ensure the long-term durability and easy cleaning of the paint film, and maintain the natural beauty of wood. In addition, its excellent heat and aging resistance can resist the erosion of bad climate and environmental factors, and protect wood for a long time.

[0008] Furthermore, the plant oil-based water-based polyurethane emulsion includes any one or a combination of the following: tung oil-based water-based polyurethane emulsion, castor oil-based water-based polyurethane emulsion, linseed oil-based water-based polyurethane emulsion, and turpentine oil-based water-based polyurethane emulsion.

[0009] In the present invention, the vegetable oil-based waterborne polyurethane emulsion can be realized by existing technology, and its corresponding characteristics are as follows: Tung oil-based water-based polyurethane emulsion: has good corrosion resistance and weather resistance, can resist the erosion of various corrosive substances, and performs well under different climatic conditions. This makes it perform well in outdoor use and can maintain its performance for a long time; Castor oil-based waterborne polyurethane emulsion: It has good elasticity and wear resistance, can maintain stability under high pressure and high temperature, and is suitable for occasions requiring high mechanical properties. Through modification, the water resistance of the emulsion is significantly improved, and it can maintain stability in humid environments; Linseed oil-based waterborne polyurethane emulsion: It has certain antioxidant properties, which can prevent the resin from oxidizing and losing its original strength during the curing process. In addition, it has good fluidity and permeability. Adding an appropriate amount of linseed oil can improve the strength and durability of the resin, and can also reduce the formation of defects such as resin spots and bubbles; Turpentine-based water-based polyurethane emulsion: It has the characteristics of easy solubility, strong adhesion, good water resistance, etc. The addition of turpentine base can increase the hardness, strength, wear resistance and weather resistance of polyurethane.

[0010] Preferably, the plant oil-based waterborne polyurethane emulsion is a tung oil-based waterborne polyurethane emulsion, and the resin has good corrosion resistance, weather resistance and outstanding water resistance.

[0011] Furthermore, the aqueous wax emulsion includes any one or a combination of the following: aqueous palm wax emulsion, aqueous paraffin wax emulsion, aqueous polyethylene wax emulsion, aqueous polyamide wax emulsion, aqueous polytetrafluoroethylene wax emulsion.

[0012] The aqueous wax emulsion of the present invention effectively improves the surface properties of the coating film, mainly including improving the smoothness and scratch resistance of the coating film, improving the waterproofness, changing the rheological properties of the coating, etc.

[0013] In the present invention, the aqueous wax emulsion can be realized by existing technology, and its corresponding characteristics are as follows: Water-based palm wax emulsion: It can improve the adhesion, scrub resistance and water resistance of the coating, increase the gloss and transparency, has good waterproof, anti-corrosion and good acid and alkali resistance and smoothness, and is suitable for occasions that require acid and alkali resistance and smooth feel; Water-based paraffin emulsion: mainly used to fill the coating, improve the coating feel, wear resistance, anti-sticking and increase gloss; Water-based polytetrafluoroethylene: It can be used for a long time in a high temperature environment without degradation, dust and various pollutants are not easily attached to the surface, it is easy to clean, and it has excellent acid resistance, alkali resistance, salt resistance, oxidation resistance and other characteristics; Preferably, the aqueous wax emulsion is an aqueous palm wax emulsion, which has the following characteristics: improving the adhesion, scrub resistance and water resistance of the coating, increasing the gloss and transparency, having good waterproofness, corrosion resistance and good acid and alkali resistance and smoothness, and is very suitable for outdoor occasions that require weather resistance, water resistance, acid and alkali resistance and a smooth feel.

[0014] Furthermore, the nano titanium dioxide sol comprises nano titanium dioxide powder (5-20nm) dispersed in an aqueous medium to form a highly dispersed, homogenized and stabilized transparent liquid. The nano titanium dioxide sol has the following characteristics: the particle size is at the nanometer level (5-20nm), has good permeability in the visible light region, and has strong absorption capacity in the ultraviolet light region. At the same time, it can increase the strength, wear resistance and penetration of the material, improve the scrub resistance of the coating, and has good film-forming properties and self-cleaning effects. It can be used to prepare high-performance coatings, which not only have good weather resistance and durability, but also can effectively resist the erosion of ultraviolet rays and protect furniture from damage.

[0015] Furthermore, the nano-silica sol comprises nano-silica powder (10-20nm) dispersed in an aqueous medium to form a highly dispersed, homogenized and stabilized transparent liquid. The nano-silica sol has the following characteristics: the particle size is at the nanometer level (5-20nm), with high transparency and small particle size, which enables it to provide better performance and better visual effects in various applications. It can significantly improve the strength, finish and water resistance, fire resistance and stain resistance of the coating.

[0016] The protective mechanism of wood wax oil on wood products mainly depends on the permeability of its components and its ability to bind to wood fibers. The combination of tung oil-based water-based polyurethane emulsion, water-based palm wax emulsion, and nano-titanium dioxide and nano-silicon dioxide sol provides deep protection and excellent surface properties for wood. Its specific functional principle in the coating is as follows: the oil in the wood wax oil can penetrate into the interior of the wood fiber, providing deep moisture and maintenance for the wood, while the wax is tightly combined with the wood fiber to form a thin protective film, enhance the surface hardness, and improve the waterproof, anti-fouling and wear resistance; the tung oil-based water-based polyurethane emulsion uses its excellent permeability to penetrate into the interior of the wood and form a strong bond with the wood fiber. Under the action of oxygen in the air, the peroxyl free radicals in the emulsion polymerize with each other and finally solidify into a tough film, providing long-term protection and decorative effects. The water-based palm wax emulsion is combined with nano-titanium dioxide sol and nano-silicon dioxide sol to form a micro-cross-linked three-dimensional network structure. This structure not only enhances the stability of the coating, but also gives the coating excellent weather resistance, hardness and mechanical properties, enabling it to resist the influence of the external environment such as UV radiation, temperature changes and mechanical wear. Through the synergistic effect of these ingredients, wood wax oil can not only provide deep protection for the wood, but also form a tough protective film on the surface, effectively preventing the wood from drying and cracking, while maintaining the natural beauty and breathability of the wood.

[0017] Further, the film-forming aid includes any one or a combination of: propylene glycol, dipropylene glycol monobutyl ether, hexylene glycol butyl ether acetate. Preferably, the film-forming aid is propylene glycol or dipropylene glycol monobutyl ether.

[0018] Furthermore, the aqueous drying agent includes any one or a combination of two of: aqueous zirconium isooctanoate and aqueous iron isooctanoate. Preferably, the aqueous drying agent is aqueous zirconium isooctanoate.

[0019] Furthermore, the water-based bactericidal and mildew-proof agent is Kasson produced by Rohm and Haas Company.

[0020] Furthermore, the aqueous defoamer is a silicone defoamer. The present invention also provides a method for preparing a novel environmentally friendly water-based wood wax oil for outdoor use, which is characterized by comprising the following steps: S1. Sequentially add a vegetable oil-based aqueous polyurethane emulsion and a film-forming agent, and then disperse by a high-speed disperser at a medium speed of 800-1000 rpm for 5-10 minutes; S2. Slowly add aqueous wax emulsion, nano titanium dioxide sol, nano titanium dioxide sol, dispersion speed 1000-1500 rpm, dispersion time 10-15 minutes; then take a sample to check the cleanliness, cleanliness> 6H; S3. Slowly add aqueous drying agent, aqueous bactericide and mildew preventer, aqueous defoamer and purified water at a dispersion speed of 800-1000 rpm for 5-10 minutes; S4. Adjust the viscosity and fineness to ensure that the product fineness is less than 6H / B and the viscosity is 90-120KU / 30℃ to obtain a new type of environmentally friendly water-based wood wax oil for outdoor use.

[0021] The main innovative features of the present invention are: Compared with traditional coatings, the present invention is more environmentally friendly, easy to apply, and does not produce irritating odor. In addition, since it adopts water-based technology, it is easier to clean and not prone to yellowing, and can better meet the needs of modern home furnishing and decoration. Moreover, the main parts used in the present invention are tung oil-based water-based polyurethane emulsion and water-based palm wax emulsion, which are processed from natural products, reducing dependence on petroleum products and being more environmentally friendly and environmentally friendly.

[0022] The protection of wood products by wood wax oil is mainly through permeation into the interior of wood fibers for deep protection, while the surface only forms a very thin bonding film with wood fibers. The tung oil-based water-based polyurethane emulsion of the present invention has excellent permeability, and forms peroxy free radicals when combined with oxygen in the air, and the free radicals polymerize and finally solidify into a film. In this process, the water-based palm wax emulsion, nano titanium dioxide sol, and nano silicon dioxide sol form a micro-cross-linked three-dimensional network structure, which gives the coating good stability, weather resistance, hardness, and mechanical properties. The present invention has better hardness and wear resistance, anti-scratch performance, surface hydrophobicity, and anti-stick and anti-fouling properties.

[0023] The drying principle of wood wax oil is oxygen curing, and the drying is slower than that of paint, especially the plant oil that penetrates into the wood is difficult to absorb enough oxygen, and ventilation is required. However, the present invention adds an appropriate amount of water-based drying agent, which can significantly shorten the thorough drying time of water-based wood wax oil and improve the construction speed. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0025] The preparation methods of the following embodiments are as follows: A method for preparing a novel environmentally friendly water-based wood wax oil for outdoor use comprises the following steps: S1. Sequentially add a vegetable oil-based aqueous polyurethane emulsion and a film-forming agent, and then disperse by a high-speed disperser at a medium speed of 9000 rpm for 8 minutes; S2. Slowly add aqueous wax emulsion, nano titanium dioxide sol, nano titanium dioxide sol, dispersion speed 1200 rpm, dispersion time 12 minutes; then take a sample to check the cleanliness, cleanliness> 6H; S3. Slowly add aqueous drying agent, aqueous bactericide and mildew inhibitor, aqueous defoamer and purified water at a dispersion speed of 900 rpm for 8 minutes; S4. Adjust the viscosity and fineness to ensure that the product fineness is less than 6H / B and the viscosity is 90-120KU / 30℃ to obtain a new type of environmentally friendly water-based wood wax oil for outdoor use. Example

[0026] A new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 50 parts of tung oil-based water-based polyurethane emulsion, 15 parts of water-based palm wax emulsion, 5 parts of nano titanium dioxide sol, 3 parts of nano silicon dioxide sol, 7 parts of propylene glycol, 8 parts of dipropylene glycol monobutyl ether, 0.5 parts of water-based zirconium isooctanoate, 0.5 parts of Rohm and Haas's Casone, and 12 parts of purified water. Example

[0027] A new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 60 parts of tung oil-based water-based polyurethane emulsion, 10 parts of water-based palm wax emulsion, 3 parts of nano titanium dioxide sol, 5 parts of nano silicon dioxide sol, 4 parts of propylene glycol, 10 parts of dipropylene glycol monobutyl ether, 0.3 parts of water-based zirconium isooctanoate, 0.2 parts of Rohm and Haas's Casone, and 7.5 parts of purified water. Example

[0028] A new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 45 parts of tung oil-based water-based polyurethane emulsion, 14 parts of water-based palm wax emulsion, 4 parts of nano titanium dioxide sol, 7 parts of nano silicon dioxide sol, 7 parts of propylene glycol, 7 parts of dipropylene glycol monobutyl ether, 0.6 parts of water-based zirconium isooctanoate, 0.4 parts of Rohm and Haas's Casone, and 15 parts of purified water. Example

[0029] A method for preparing a novel environmentally friendly water-based wood wax oil for outdoor use comprises the following steps: S1. Sequentially add a vegetable oil-based aqueous polyurethane emulsion and a film-forming agent, and then disperse by a high-speed disperser at a medium speed of 800 rpm for 10 minutes; S2. Slowly add aqueous wax emulsion, nano titanium dioxide sol, nano titanium dioxide sol, dispersion speed 1000 rpm, dispersion time 15 minutes; then take a sample to check the cleanliness, cleanliness> 6H; S3. Slowly add aqueous drying agent, aqueous bactericide and mildew preventer, aqueous defoamer and purified water at a dispersion speed of 800 rpm for 10 minutes; S4. Adjust the viscosity and fineness to ensure that the product fineness is less than 6H / B and the viscosity is 90-120KU / 30℃ to obtain a new type of environmentally friendly water-based wood wax oil for outdoor use. Example

[0030] A method for preparing a novel environmentally friendly water-based wood wax oil for outdoor use comprises the following steps: S1. Sequentially add a vegetable oil-based aqueous polyurethane emulsion and a film-forming agent, and then disperse by a high-speed disperser at a medium speed of 1000 rpm for 5 minutes; S2. Slowly add aqueous wax emulsion, nano titanium dioxide sol, nano titanium dioxide sol, dispersion speed 1500 rpm, dispersion time 10 minutes; then take samples to check cleanliness, cleanliness> 6H; S3. Slowly add aqueous drying agent, aqueous bactericide and mildew inhibitor, aqueous defoamer and purified water at a dispersion speed of 1000 rpm for 5 minutes; S4. Adjust the viscosity and fineness to ensure that the product fineness is less than 6H / B and the viscosity is 90-120KU / 30℃ to obtain a new type of environmentally friendly water-based wood wax oil for outdoor use.

[0031] Comparative Example 1 A new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 50 parts of tung oil-based water-based polyurethane emulsion, 15 parts of water-based palm wax emulsion, 5 parts of nano titanium dioxide sol, 3 parts of nano silicon dioxide sol, 7 parts of propylene glycol, 8 parts of dipropylene glycol monobutyl ether, 0.5 parts of water-based zirconium isooctanoate, 0.5 parts of Rohm and Haas's Casone, and 12 parts of purified water.

[0032] Comparative Example 2 The new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 60 parts of tung oil-based water-based polyurethane emulsion, 10 parts of wax emulsion, 3 parts of nano titanium dioxide sol, 5 parts of nano silicon dioxide sol, 4 parts of propylene glycol, 10 parts of dipropylene glycol monobutyl ether, 0.3 parts of water-based zirconium isooctanoate, 0.4 parts of Rohm and Haas's Casone, and 7.5 parts of purified water.

[0033] Comparative Example 3 A new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 50 parts of tung oil-based water-based polyurethane emulsion, 15 parts of water-based palm wax emulsion, 7 parts of nano-silica sol, 7 parts of propylene glycol, 7 parts of dipropylene glycol monobutyl ether, 0.6 parts of water-based zirconium isooctanoate, 0.4 parts of Rohm and Haas's Casone, and 14 parts of purified water.

[0034] Comparative Example 4 A new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 50 parts of tung oil-based water-based polyurethane emulsion, 15 parts of water-based palm wax emulsion, 7 parts of nano titanium dioxide sol, 7 parts of propylene glycol, 7 parts of dipropylene glycol monobutyl ether, 0.6 parts of water-based zirconium isooctanoate, 0.4 parts of Rohm and Haas's Casone, and 13 parts of purified water.

[0035] Comparative Example 5 The new type of environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 45 parts of tung oil-based water-based polyurethane emulsion, 15 parts of water-based palm wax emulsion, 4 parts of nano titanium dioxide sol, 7 parts of nano silicon dioxide sol, 7 parts of propylene glycol, 7 parts of dipropylene glycol monobutyl ether, 0.5 parts of Rohm and Haas's Kathon, and 14.5 parts of purified water.

[0036] Comparative Example 6 Effect of different ratios The new environmentally friendly water-based wood wax oil for outdoor use is characterized by comprising the following components in parts by weight: 35 parts of tung oil-based water-based polyurethane emulsion, 30 parts of water-based palm wax emulsion, 1 part of nano titanium dioxide sol, 1 part of nano silicon dioxide sol, 10 parts of propylene glycol, 10 parts of dipropylene glycol monobutyl ether, 0.7 parts of water-based zirconium isooctanoate, 0.8 parts of Rohm and Haas's Casone, and 11.5 parts of purified water.

[0037] The performance of the water-based wood wax oil prepared in each embodiment and comparative example was tested using the commonly used evaluation methods in the art. The test results are shown in Tables 1-3 below.

[0038] Table 1

[0039] Table 2

[0040] Table 3

[0041] It can be seen from Table 1 that within the weight ratio range of the formula of the new type of environmentally friendly water-based wood wax oil for outdoor use of the present invention, the various components achieve a synergistic effect. For example, the vegetable oil-based water-based polyurethane emulsion may provide a basic film-forming material framework, which has a certain barrier ability to moisture and acid and alkali; the water-based palm wax emulsion forms a protective shell-like structure on the surface, which helps to prevent the invasion of foreign substances, thereby ensuring good water resistance, acid resistance and salt water resistance. From the perspective of appearance color, the appropriate formula ratio allows the coating to be evenly distributed during the drying and film-forming process, and there will be no uneven color caused by local component aggregation, thereby presenting a better appearance color. At the same time, components such as nano-titanium dioxide sol and nano-silicon dioxide sol can penetrate into the interior of wood fibers or fill in the microstructure of the film-forming material due to their nano-level particle size, increasing the contact area between the coating and the wood surface, thereby improving permeability and adhesion. These nanomaterials and reasonable formulas improve the stability of the coating as a whole. When facing different chemical media and environmental factors (such as sunlight, rain, temperature changes, etc.), they can maintain good weather resistance and chemical resistance, thereby significantly improving the texture of the coating.

[0042] It can be seen from Table 2 that in Comparative Example 1, the adhesion, hardness, water resistance, weather resistance and wear resistance of water-based wood wax oil are all reduced due to the lack of vegetable oil-based water-based polyurethane emulsion; vegetable oil-based water-based polyurethane emulsion plays an important role in film-forming and bonding in the coating system. When it is missing, the overall film-forming structure of the coating is not complete, resulting in insufficient bonding with the wood surface, so the adhesion is reduced. The imperfection of the film-forming structure also weakens the resistance of the coating when facing external pressure (such as friction) and environmental erosion (such as moisture, acid and alkali), thereby reducing the hardness, water resistance, weather resistance and wear resistance. In Comparative Example 2, the adhesion, hardness, water resistance, weather resistance and wear resistance of water-based wood wax oil are all reduced due to the lack of water-based palm wax emulsion; the water-based palm wax emulsion has the function of providing a surface protective layer. When it is missing, the protective ability of the coating surface is impaired, just like a layer of protective armor is missing, which enhances the interaction between the coating and external substances, resulting in reduced adhesion, hardness, water resistance, weather resistance and wear resistance. Comparative Example 3, without nano-titanium dioxide sol, the gloss, hardness, stain resistance and acid and alkali resistance of water-based wood wax oil are poor; nano-titanium dioxide sol has good optical properties and chemical stability. Without it, the gloss of the coating will be affected because nano-titanium dioxide can scatter light, making the surface of the coating look brighter. At the same time, it also plays a role in improving the hardness of the coating and resisting acid and alkali erosion. When it is missing, the hardness and stain resistance and acid and alkali resistance of the coating deteriorate. Comparative Example 4, without nano-silica sol, the adhesion, hardness, water resistance, weather resistance and wear resistance of water-based wood wax oil are all reduced. Nano-silica sol helps to improve the filling and bonding properties of the coating. In the absence of it, the coating does not bond tightly enough to the wood surface, resulting in decreased adhesion, and due to the lack of filling structure, the hardness, water resistance, weather resistance and wear resistance of the coating are affected.

[0043] It can be seen from Table 3 that in Comparative Example 5, there is no water-based drying agent, the drying time is greatly prolonged, and various properties are also greatly reduced. The water-based drying agent can accelerate the drying and curing process of the coating. Without it, the drying time of the coating is greatly prolonged. In the long-term undried state, the coating is easily disturbed by external factors, such as dust adsorption, water intrusion, etc., which leads to a significant reduction in various properties. In Comparative Example 6, if the resin content is low, the cross-linking density is insufficient, and the performance is reduced; the water-based palm wax emulsion is small, the adhesion, scrub resistance and water resistance of the coating are all reduced; in addition, its surface drying and actual drying time are prolonged, and it is easy to be damaged and absorb oil stains. Low resin content means that the cross-linking density is insufficient, the intermolecular connection inside the coating is not tight enough, the overall structure is unstable, and the performance is reduced. When there is less water-based palm wax emulsion, the surface protection ability of the coating is weakened, and the adhesion, scrub resistance and water resistance are all reduced. At the same time, because the drying process of the coating is affected, the surface drying and actual drying time are prolonged, and the wood is easily damaged and absorbs oil stains in this process. It can be seen from this that only through the reasonable combination of materials can the coating's waterproofness, anti-corrosion, good acid and alkali resistance and smoothness be greatly improved, making it suitable for outdoor use needs.

[0044] It can be seen that the present invention fully utilizes the advantages of each component through the arrangement of each component and the synergistic compounding effect, overcomes the performance defects caused by the lack or insufficiency of a single component, and provides a water-based water-based wood wax oil product that can improve the wear resistance and aging resistance of the wood wax oil coating, can maintain various good properties of wood for a long time, effectively prevent the wood from drying and cracking, and make the wood have excellent properties such as breathability, drying, anti-corrosion, and insect resistance, thereby comprehensively improving the use quality of the wood.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0046] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be realized by any prior art in the art.

Claims

1. A new type of environmentally friendly water-based wood wax oil for outdoor use, characterized in that: The invention comprises the following components in parts by weight: 40-70 parts of vegetable oil-based water-based polyurethane emulsion, 10-20 parts of water-based wax emulsion, 2-5 parts of nano titanium dioxide sol, 2-8 parts of nano silicon dioxide sol, 10-15 parts of film-forming aid, 0.3-0.8 parts of water-based drying agent, 0.2-0.5 parts of water-based bactericide and mildew preventer, 0.1-0.5 parts of water-based defoamer and 5-15 parts of purified water.

2. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 1, characterized in that: The vegetable oil-based waterborne polyurethane emulsion includes any one or a combination of the following: tung oil-based waterborne polyurethane emulsion, castor oil-based waterborne polyurethane emulsion, linseed oil-based waterborne polyurethane emulsion, and turpentine oil-based waterborne polyurethane emulsion.

3. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 2, characterized in that: The aqueous wax emulsion includes any one or a combination of the following: aqueous palm wax emulsion, aqueous paraffin wax emulsion, aqueous polyethylene wax emulsion, aqueous polyamide wax emulsion, aqueous polytetrafluoroethylene wax emulsion.

4. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 3, characterized in that: The film-forming aid includes any one or a combination of the following: propylene glycol, dipropylene glycol monobutyl ether, and hexylene glycol butyl ether acetate.

5. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 4, characterized in that: The aqueous drying agent includes any one or a combination of two of the following: aqueous zirconium isooctanoate and aqueous iron isooctanoate.

6. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 1, characterized in that: The nano titanium dioxide sol is a transparent liquid formed by dispersing nano titanium dioxide powder in an aqueous medium.

7. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 1, characterized in that: The nano-silicon dioxide sol is a transparent liquid formed by dispersing nano-silicon dioxide powder in an aqueous medium.

8. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 1, characterized in that: The water-based bactericidal and mildew-proof agent is kason.

9. The novel environmentally friendly water-based wood wax oil for outdoor use according to claim 1, characterized in that: The aqueous defoamer is an organosilicon defoamer.

10. A method for preparing the novel environmentally friendly water-based wood wax oil for outdoor use according to any one of claims 1 to 9, characterized in that: The package follows the following steps: S1. Sequentially add a vegetable oil-based aqueous polyurethane emulsion and a film-forming agent, and then disperse by a high-speed disperser at a medium speed of 800-1000 rpm for 5-10 minutes; S2. Slowly add aqueous wax emulsion, nano titanium dioxide sol, nano titanium dioxide sol, dispersion speed 1000-1500 rpm, dispersion time 10-15 minutes; then take a sample to check the cleanliness, cleanliness> 6H; S3. Slowly add aqueous drying agent, aqueous bactericide and mildew preventer, aqueous defoamer and purified water at a dispersion speed of 800-1000 rpm for 5-10 minutes; S4. Adjust the viscosity and fineness to ensure that the product fineness is less than 6H / B and the viscosity is 90-120KU / 30℃ to obtain a new type of environmentally friendly water-based wood wax oil for outdoor use.

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