Coating method for composite coating on slide, slide, and use method

Abstract

The present invention relates to the technical field of slides, and specifically provides a coating method for a composite coating on a slide, a slide, and a use method. The composite coating comprise

Description

Method for coating composite coating on slide, slide and use method Technical Field

[0001] The invention relates to the field of slides, and in particular to a coating method for a composite coating on a slide, a slide and a use method thereof. Background Art

[0002] Slides are a common type of recreational equipment found in everyday entertainment venues. To ensure safety, existing slides are typically set at a relatively low height or in an enclosed configuration. However, these configurations often result in significant friction on the slide surface, limiting the speed of descent and reducing the excitement and entertainment value of the slide.

[0003] Therefore, it is necessary to invent a slide that can minimize frictional resistance to improve entertainment while ensuring safety. Technical issues

[0004] The first object of the present invention is to provide a method for coating a composite coating on a slide, so as to solve the problem of high friction resistance of existing slides.

[0005] The second object of the present invention is to provide a slide obtained by coating the composite coating using the above coating method.

[0006] The third object of the present invention is to provide a method for using the above slide. Technical Solutions

[0007] To achieve the first objective described above, the present invention provides a method for applying a composite coating to a slide, wherein the composite coating comprises a water-based two-component polyurethane topcoat and a nano-silicon clearcoat. The method comprises the following steps: S1. stirring the water-based two-component polyurethane topcoat uniformly and applying it to the slide surface; S2. using a sponge roller to create a pattern before the water-based two-component polyurethane topcoat dries; S3. after the coating is completed, allowing the water-based two-component polyurethane topcoat to dry, and then applying the nano-silicon clearcoat to form a smooth surface.

[0008] A further solution is that the water-based two-component polyurethane topcoat is rolled at least twice in step S2; and the nano-silicon overcoat varnish is applied at least twice in step S3.

[0009] A further solution is that the coating method in step S1 and step S3 is roller coating or spray coating.

[0010] A further solution is that the coating method in step S1 includes: after stirring the water-based two-component polyurethane topcoat evenly, using a flat coating roller with a bristle length greater than 16 mm to apply the water-based two-component polyurethane topcoat to the surface of the slide.

[0011] A further solution is that the water-based two-component polyurethane topcoat includes water-dispersible polyisocyanate and water-based polyurethane paint, and the water-based polyurethane paint includes water-based polyurethane emulsion, polyether-modified siloxane leveling agent, defoaming agent, thixotropic anti-sagging agent, wetting and leveling agent, wetting agent, pH regulator, preservative, deionized water and thickener; the NCO content of the water-dispersible isocyanate is 21.5%; the content of water-based polyurethane emulsion in the water-based polyurethane paint is 75% to 85%; the solid content of the water-based polyurethane emulsion is 40%, and the hydroxyl value content is 2%; the mass ratio of water-dispersible polyisocyanate to water-based polyurethane paint is 10:1~2:1, preferably 8:1~4:1, and more preferably 20:3; the nano-silicone overprint varnish includes polysiloxane resin, polyether-modified siloxane leveling agent, silicone defoaming agent, and solvent; the polysiloxane resin content in the nano-silicone overprint varnish is 60% to 70%; and the solid content of the polysiloxane resin is 40%.

[0012] A further solution is that the construction viscosity of the water-based two-component polyurethane topcoat is greater than 140KU.

[0013] A further solution is that the total application amount of the water-based two-component polyurethane topcoat is 0.1 kg per square meter; and the nano-silicon clear coat is 0.1 kg per square meter each time.

[0014] In order to achieve the above second object, the present invention provides a slide obtained by coating a composite coating using the above coating method.

[0015] A further solution is that the composite coating on the slide surface is coated with a lubricant, preferably the lubricant is coated once a week.

[0016] A further solution is that the slide also includes a nylon mat, the density of the bottom surface of the nylon mat is 18 mesh to 60 mesh, preferably the density of the bottom surface of the nylon mat is 18 mesh, 25 mesh or 40 mesh; the nylon mat is placed on the surface of the slide, the person or object is located on the nylon mat, and the person or object slides down the slide surface together with the nylon mat.

[0017] In order to achieve the third objective described above, the present invention provides a method for using the slide, comprising using the slide in conjunction with a nylon mat, wherein a person or object is positioned on the nylon mat, and the person or object and the nylon mat slide down the slide together; the density of the bottom surface of the nylon mat is 18 mesh to 60 mesh, and preferably the density of the bottom surface of the nylon mat is 18 mesh, 25 mesh, or 40 mesh. Beneficial effects

[0018] In the present invention, a method for applying a composite coating to a slide is provided. Both the water-based two-component polyurethane topcoat and the nano-silicon clearcoat have excellent adhesion, allowing the water-based two-component polyurethane topcoat to be well fixed to the glass fiber surface of the slide. By applying the pattern with a sponge-brushed roller before the water-based two-component polyurethane topcoat dries, the contact area with the nano-silicon clearcoat is increased, indirectly promoting the adhesion of the nano-silicon clearcoat and ensuring the firmness of the composite coating. While maintaining the slide's height and external structure, the slide's safety is ensured. The addition of a smooth nano-silicon clearcoat reduces frictional resistance on the slide's surface, enhancing its enjoyment.

[0019] Applying two or more coats of the waterborne two-component polyurethane topcoat creates a larger surface area, allowing the nano-silicon clear coat to adhere more firmly to the waterborne two-component polyurethane topcoat. Applying two or more coats of the nano-silicon clear coat creates a smoother surface, which reduces friction.

[0020] Rolling with a flat roller is easy to operate and saves topcoat.

[0021] The water-based two-component polyurethane topcoat produced from these components boasts excellent adhesion, high hardness, superior corrosion protection, and is safe and environmentally friendly. The nano-silicon overcoat varnish produced from these components is composed of a highly branched terpolymer, reformed into an inorganic surface with a hardness of ≥4H, forming a high-hardness coating on surfaces. When clothing or objects rub against the slide, the high-hardness surface prevents wear and scratching. The inorganic siloxane bonds (-Si-O-Si-) in the polysiloxane are highly thermally stable and resist chemical reactions that could decompose or break the coating under high temperatures or frictional heat. This results in a coating with excellent wear and scratch resistance, high hardness, and a longer service life than conventional coatings. It is fire-resistant, water-impact-resistant, has strong adhesion, offers a certain degree of flexibility, is non-toxic, and is non-polluting. Furthermore, these water-based two-component polyurethane topcoat and nano-silicon overcoat varnish offer lower costs than existing coatings on the market.

[0022] The above construction viscosity can improve the thixotropy of the polyurethane topcoat.

[0023] Under the above construction dosage, the use effect is guaranteed while the coating is thin, which saves coating and saves costs.

[0024] The slide of the present invention has a simple maintenance method and has a good friction reduction effect. While ensuring safety, the entertainment value of the slide can be improved.

[0025] In a slide method disclosed herein, the nylon mat ensures a more stable sliding speed. The nylon mat has a friction coefficient of 0.35, which can be reduced to 0.1 to 0.15 under high load conditions. It also has a heat resistance of 121°C to 149°C, making it suitable for outdoor use. The nylon mat also exhibits excellent wear resistance. Using the nylon mat in a composite-coated slide further reduces the risk of deceleration for people or objects on the slide, enhancing the enjoyment experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic diagram of a cross section of a surface coating of a slide according to the present invention.

[0027] FIG2 is a schematic diagram of the entire slide of the present invention.

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments. Modes for Carrying Out the Invention

[0029] This embodiment provides a method for applying a composite coating for a slide, wherein the composite coating includes a water-based two-component polyurethane topcoat and a nano-silicon overcoat. The water-based two-component polyurethane topcoat includes a water-dispersible polyisocyanate and a water-based polyurethane paint. The water-based polyurethane paint includes a water-based polyurethane emulsion, a polyether-modified siloxane leveling agent, a defoamer, a thixotropic anti-sagging agent, a wetting and leveling agent, a wetting agent, a pH adjuster, a preservative, deionized water, a preservative, and a thickener. The mass ratio of the water-dispersible polyisocyanate to the water-based polyurethane paint is 10:1 to 2:1. The nano-silicon overcoat includes a polysiloxane resin, a polyether-modified siloxane leveling agent, a silicone defoamer, and a solvent.

[0030] The method for applying a composite coating to a slide includes the following steps: S1. Evenly stirring a water-based two-component polyurethane topcoat and applying it to the slide surface; S2. Rolling the water-based two-component polyurethane topcoat with a sponge roller to create a pattern before the surface dries; S3. After rolling, allowing the surface to dry, and after ensuring that the water-based two-component polyurethane topcoat is dry, applying a nano-silicon clearcoat to form a smooth surface. The water-based two-component polyurethane topcoat is rolled at least twice in step S2, and the nano-silicon clearcoat is applied at least twice in step S3. The coating method in steps S1 and S3 is rolling or spraying.

[0031] In this embodiment, the NCO content of the water-dispersible isocyanate is 21.5%.

[0032] The water-based polyurethane paint includes 800 parts of water-based polyurethane emulsion, 5 parts of polyether modified silicone leveling agent, 5 parts of defoaming agent, 5 parts of thixotropic anti-sagging agent, 5 parts of wetting and leveling agent, 20 parts of dipropylene glycol methyl ether, 40 parts of propylene glycol butyl ether, 3 parts of pH regulator, 2 parts of preservative, 16 parts of thickener and 99 parts of deionized water, wherein the solid content of the water-based polyurethane emulsion is 40%, and the hydroxyl value content is 2%.

[0033] The nano-silicone overprint varnish comprises 100 parts of polysiloxane resin, 1.5 parts of polyether-modified siloxane leveling agent, 1.5 parts of organosilicon defoaming agent and 50 parts of ethylene glycol monobutyl ether, wherein the solid content of the polysiloxane resin is 40%.

[0034] The preparation method of the water-based polyurethane paint of the present embodiment comprises the following steps:

[0035] S1. Weigh 800 parts (by weight) of aqueous polyurethane emulsion (40% solids content, 2% hydroxyl content) and place it in a clean dispersion tank;

[0036] S2 in the process of low-speed dispersion in order to put a polyether-modified silicone leveling agent 5 parts, 5 parts of defoaming agent, 5 parts of thixotropic anti-sagging agent, 5 parts of wetting and leveling agent;

[0037] S3. Disperse at high speed for 30 minutes and use a scraper to confirm that there are no shrinkage holes.

[0038] S4 20 parts of dipropylene glycol methyl ether solvent, 40 parts of propylene glycol butyl ether solvent and 70 parts of deionized water were mixed and then slowly added to the above liquid material in the dispersion;

[0039] S5. Add 3 parts of pH regulator, 2 parts of preservative, 29 parts of deionized water and 16 parts of thickener in the order of low-speed dispersion;

[0040] S6. Disperse at low speed for 10 minutes and adjust the viscosity to 105KU to obtain a water-based polyurethane paint.

[0041] The preparation method of the water-based two-component polyurethane topcoat of the present embodiment comprises the following steps:

[0042] The water-dispersible isocyanate and the water-based polyurethane paint are mixed in a weight ratio of 20:3 to obtain a water-based two-component polyurethane topcoat.

[0043] The preparation method of the nano-silicon overprint varnish in this embodiment comprises the following steps:

[0044] S1. Accurately weigh 100 parts of inorganic hybrid nano-polysiloxane resin (solid content 40%) and place them into a clean dispersion tank;

[0045] S2. In the process of low-speed dispersion, 1.5 parts of polyether-modified siloxane leveling agent, 1.5 parts of silicone defoamer and 50 parts of ethylene glycol monobutyl ether solvent were sequentially added;

[0046] S3. Disperse at low speed for 10 minutes to obtain nano-silicon overprint varnish.

[0047] The performance characteristics of the water-based two-component polyurethane topcoat in this embodiment obtained according to relevant test standards are shown in Table 1 below:

[0048] Table 1

[0049] Item Parameters Test Method Color: Medium gray and other colors Visual inspection Fineness ≦30um GB / T 6753.1-2007 Gloss 70 GB / T 9754-2007 Solid content ≥43% GB / T 1725-2007 Impact resistance 50kg.cm GB / T 1732-93 Hardness ≥H GB / T 6739-2006 Adhesion Grade 0 GB / T 1720-79 Salt spray resistance 240h GB / T 1771-2007

[0050] It can be seen that the water-based two-component polyurethane topcoat in this embodiment has good adhesion, high hardness, good anti-corrosion effect, and is safe and environmentally friendly.

[0051] Nano-silicon overprint varnish is composed of a highly branched ternary polymer, reformed into an inorganic surface with a hardness of ≥4H, forming a high-hardness coating on surfaces. This high-hardness surface protects against wear and scratching when rubbed against clothing or other surfaces. The inorganic siloxane bonds (-Si-O-Si-) in the polysiloxane are highly thermally stable and resist chemical reactions that could decompose or break the coating under high temperatures or frictional heat. This results in a coating with excellent wear and scratch resistance and high hardness, extending the lifespan of conventional coatings. It also exhibits superior adhesion, stain resistance, wear resistance, aging resistance, heat resistance, corrosion resistance, chemical resistance, electrical insulation, hydrophobicity, high hardness, and easy application. It is fire-resistant, water-resistant, and has strong adhesion, a certain degree of flexibility, and is non-toxic and non-polluting. It can be directly sprayed onto various metals, non-metallic inorganic materials, and some organic materials, forming a hard film similar to silica ceramic.

[0052] At the same time, the above-mentioned water-based two-component polyurethane topcoat and nano-silicon clear varnish are ten times cheaper than the existing coatings on the market, saving costs.

[0053] In this embodiment, the method for applying the composite coating on the slide comprises the following steps:

[0054] S1. After stirring the water-based two-component polyurethane topcoat, apply the water-based two-component polyurethane topcoat to the surface of the slide using a flat coating roller with a hair length greater than 16mm. The construction viscosity of the water-based two-component polyurethane topcoat is greater than 140KU.

[0055] S2. Use a sponge roller to create a pattern before the water-based two-component polyurethane topcoat dries. For a more distinct pattern, apply a second coat of paint one hour later.

[0056] S3. After roller coating is completed, let it dry for 24 hours. After confirming that the surface of the water-based two-component polyurethane topcoat is dry, use a short-haired flat coating roller to roll on the nano-silicone topcoat varnish. After 30 minutes, roll on another layer of nano-silicone topcoat varnish to form a smooth surface.

[0057] The thickness and smoothness of the coating do not affect performance; it only needs to be applied to the necessary areas. The coating obtained by the above coating method, in which the water-based two-component polyurethane topcoat and the nano-silicon clearcoat both have excellent adhesion, can be well fixed to the glass fiber surface of the slide. By rolling the pattern with a sponge-brushed roller before the water-based two-component polyurethane topcoat dries, the contact area with the nano-silicon clearcoat is increased, indirectly promoting the adhesion of the nano-silicon clearcoat and ensuring the firmness of the composite coating. Without changing the height and external structure of the slide, the safety of the slide is guaranteed. The addition of a smooth nano-silicon clearcoat reduces frictional resistance on the slide surface, increasing its entertainment value.

[0058] In this embodiment, the composite coating method for the slide is based on a water-based two-component polyurethane topcoat application rate of 5 kg of water-dispersible isocyanate and 0.75 kg of water-based polyurethane paint, for a total application rate of 0.1 kg per square meter. The nano-silicon overcoat clearcoat is applied at a rate of 0.1 kg per square meter. This results in a thin coating, cost-saving, and effective.

[0059] The composite coating obtained by the composite coating method of this embodiment is also coated with a commercially available lubricant. The lubricant is applied at night to allow the slide surface to absorb the lubricant. After application, wait 12 hours before using the slide. The lubricant should be applied weekly for maintenance. This enhances the slide's lubrication and ensures its enjoyment.

[0060] Referring to Figure 1, the glass fiber surface 1 of this embodiment of the slide is coated with an uneven water-based two-component polyurethane topcoat 2. A smooth nano-silicon overcoat 3 is applied to the water-based two-component polyurethane topcoat 2. The nano-silicon overcoat 3 is then coated with a lubricant 4. The resulting slide generates low friction and offers high entertainment value.

[0061] Referring to Figure 2 , the slide 5 of this embodiment can be used directly by sliding down the slide surface, or it can be used with a nylon mat. The nylon mat is placed on the slide surface, and a person or object is placed on the nylon mat. The person or object slides down the slide surface together with the nylon mat. The density of the bottom surface of the nylon mat is 18 to 60 mesh.

[0062] Using a TMY Ceramic Tile Coefficient of Friction Tester (L1105) at an ambient temperature of 21°C to 25°C and a relative humidity of 45% to 55%, according to GB / T 22374-2018, the dry friction coefficient was 0.11 when using a 60-mesh nylon mesh wrapped around the friction block. The dry friction coefficient, measured using the standard method without nylon mesh, was 0.55. This indicates that using a slide with a nylon mat significantly reduces frictional resistance, further preventing the deceleration of people or objects on the slide and thus enhancing the slide's entertainment value. Using nylon mats of varying densities can achieve varying degrees of friction reduction, allowing for varying sliding speeds.

[0063] The above embodiments are merely preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features, and principles of the present invention should be included in the scope of application of the present invention. Industrial Applicability

[0064] The method for applying a composite coating on a slide, the slide, and the method of use provided by the present invention can all be applied to the slide field.

[0065] When applied during slide construction, the composite coating method of the present invention ensures slide safety without changing the slide's height or external structure. Furthermore, the addition of a smooth nano-silicon overcoat reduces frictional resistance on the slide's surface, enhancing its enjoyment. The slide and its use method provided by the present invention enhance its enjoyment while ensuring safety.

Claims

1. A method for coating a composite coating on a slide, characterized in that: The composite coating comprises a water-based two-component polyurethane topcoat and a nano-silicon varnish; The coating method of the composite coating on the slide comprises the following steps: S1. The water-based two-component polyurethane topcoat is stirred and evenly applied to the surface of the slide; S2. Before the surface of the water-based two-component polyurethane topcoat is dried, a pattern is rolled out with a sponge roughened roller; S3. After the roller coating is completed, the coating is allowed to dry, and after the surface of the water-based two-component polyurethane topcoat is determined to be dry, the nano-silicon varnish is applied to form a smooth surface.

2. The method for coating a composite coating on a slide according to claim 1, characterized in that: The water-based two-component polyurethane topcoat is rolled at least twice in step S2; In step S3, the nano-silicon overprint varnish is applied at least twice.

3. The method for coating a composite coating on a slide according to claim 1, characterized in that: The coating method in step S1 and step S3 is rolling coating or spraying coating.

4. A method for coating a composite coating on a slide as claimed in claim 3, characterized in that: The coating method in step S1 comprises: after stirring the water-based two-component polyurethane topcoat evenly, using a flat coating roller with a bristle length greater than 16 mm to apply the water-based two-component polyurethane topcoat to the surface of the slide.

5. The method for coating a composite coating on a slide according to claim 1, characterized in that: The waterborne two-component polyurethane topcoat comprises water-dispersible polyisocyanate and waterborne polyurethane paint, wherein the waterborne polyurethane paint comprises waterborne polyurethane emulsion, polyether-modified siloxane leveling agent, defoamer, thixotropic anti-sagging agent, wetting leveling agent, wetting agent, pH regulator, preservative, deionized water and thickener, and the mass ratio of the water-dispersible polyisocyanate to the waterborne polyurethane paint is 10:1 to 2:1; The nano silicon varnish comprises polysiloxane resin, polyether modified siloxane leveling agent, organic silicon defoaming agent and solvent.

6. A method for coating a composite coating on a slide as claimed in claim 5, characterized in that: The construction viscosity of the water-based two-component polyurethane topcoat is greater than 140KU.

7. The method for coating a composite coating on a slide as claimed in claim 5, characterized in that: The total application amount of the water-based two-component polyurethane topcoat is 0.1 kg per square meter; The nano silicon varnish is applied in an amount of 0.1 kg per square meter each time.

8. A slide, characterized in that: The slide is a slide obtained by coating the composite coating by the method for coating a composite coating on a slide as claimed in any one of claims 1 to 7.

9. A slide as claimed in claim 8, characterized in that: The composite coating on the surface of the slide is coated with a lubricant.

10. A method for using a slide, characterized in that: The slide is a slide as claimed in claim 8 or 9; The slide is used in conjunction with a nylon mat, a person or an object is placed on the nylon mat, and the person or the object slides down the slide surface together with the nylon mat; The density of the bottom surface of the nylon pad is 18 meshes to 60 meshes.

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