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

Abstract

The invention provides a coating method of a composite coating on a slide, the slide and a using method. Wherein the composite coating comprises a water-based two-component polyurethane finish paint and a nano silicon coating varnish. The coating method of the composite coating on the slide comprises the following steps: S1, uniformly stirring water-based two-component polyurethane finish paint, and then coating the water-based two-component polyurethane finish paint on the surface of the slide; s2, before the surface of the water-based two-component polyurethane finish paint is dried, patterns are formed through roller coating by using a sponge garland roller; and S3, after roller coating is completed, standing for drying, and after it is determined that the surface of the water-based two-component polyurethane finish paint is dried, coating the water-based two-component polyurethane finish paint with nano silicon coating varnish to form a smooth surface. Wherein patterns are rolled and coated by using a sponge galling roller before the water-based two-component polyurethane finish paint is dried, so that the contact area with the nano silicon coating varnish is increased, the bonding capacity of the nano silicon coating varnish is indirectly promoted, and the bonding firmness of the composite coating is ensured. Smooth nanometer silicon coating varnish reduces frictional resistance of the surface of the slide, and entertainment is improved.

Description

Technical Field

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

[0002] Slides are a kind of comprehensive activity equipment, which are commonly seen in daily entertainment venues. To ensure safety, existing slides are usually set at a lower height or in a closed form, but such settings often result in greater friction resistance on the slide surface, limiting the sliding speed, and failing to achieve the desired level of stimulation, and the entertainment value of the slide is also reduced accordingly.

[0003] Therefore, it is necessary to invent a slide that can reduce frictional resistance to the greatest extent to improve entertainment while ensuring safety. Summary of the invention

[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 large friction resistance of the existing slide.

[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.

[0007] In order to achieve the above-mentioned first purpose, the present invention provides a method for coating a composite coating on a slide, wherein the composite coating includes a water-based two-component polyurethane topcoat and a nano-silicon varnish. The method for coating a composite coating on a slide comprises the following steps: S1. The water-based two-component polyurethane topcoat is stirred evenly and then coated on the surface of the slide; S2. Before the surface of the water-based two-component polyurethane topcoat is dried, a sponge pattern roller is used to roll out a pattern; S3. After the rolling is completed, it is placed to dry, and after the surface of the water-based two-component polyurethane topcoat is determined to be dry, the nano-silicon varnish is coated to form a smooth surface.

[0008] It can be seen from the above scheme that both the water-based two-component polyurethane topcoat and the nano-silicon varnish have good adhesion. The water-based two-component polyurethane topcoat can be well fixed on the glass fiber surface of the slide. By rolling the pattern with a sponge roughened roller before the water-based two-component polyurethane topcoat dries, the contact area with the nano-silicon varnish is increased, which indirectly promotes the adhesion of the nano-silicon varnish and ensures the firmness of the composite coating. On the basis of not changing the height and external structure of the slide, the safety of the slide is guaranteed, and the friction resistance of the slide surface is reduced by adding a smooth nano-silicon varnish, which increases the entertainment.

[0009] 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.

[0010] As can be seen from the above scheme, rolling the water-based two-component polyurethane topcoat twice or more can increase the surface area, so that the nano-silicon varnish can be more firmly bonded to the surface of the water-based two-component polyurethane topcoat. Applying the nano-silicon varnish twice or more makes the formed surface smoother and improves the effect of reducing friction resistance.

[0011] A further solution is that the coating method in step S1 and step S3 is roller coating or spray coating.

[0012] A further solution is that the coating method in step S1 comprises: after the water-based two-component polyurethane topcoat is stirred evenly, the water-based two-component polyurethane topcoat is applied to the surface of the slide using a flat coating roller with a bristle length greater than 16 mm.

[0013] It can be seen from the above scheme that rolling coating with a flat coating roller is convenient to operate and saves topcoat.

[0014] 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, defoamer, thixotropic anti-sagging aid, wetting leveling agent, wetting agent, pH regulator, preservative, deionized water and thickener; the NCO content in 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 to 2:1, preferably 8:1 to 4:1, and more preferably 20:3; the nano-silicon overprint varnish includes polysiloxane resin, polyether-modified siloxane leveling agent, silicone defoamer, and solvent; the polysiloxane resin content in the nano-silicon overprint varnish is 60% to 70%; the solid content of the polysiloxane resin is 40%.

[0015] As can be seen from the above scheme, the water-based two-component polyurethane topcoat prepared by the above components has good adhesion, high hardness, good anti-corrosion effect, safety and environmental protection. The nano-silicon varnish prepared by the above components is composed of a ternary polymer with a high degree of branching, which is reorganized into an inorganic surface with a hardness of ≥4H, and can form a layer of coating with high hardness on the surface of the object. When the surface of clothes or articles rubs against the surface of the slide, the high hardness surface avoids wear or scratches. The inorganic siloxane bond (-Si-O-Si-) in the polysiloxane has high thermal stability and will not decompose or break due to chemical reactions in a high temperature environment or when friction generates heat, so that the formed coating has good wear resistance and scratch resistance, high hardness, and extends the service life of ordinary coatings. It has strong fireproof and water impact resistance, strong adhesion, certain flexibility, non-toxic and pollution-free. At the same time, the above-mentioned water-based two-component polyurethane topcoat and nano-silicon varnish are lower in cost than existing coatings on the market.

[0016] A further solution is that the construction viscosity of the water-based two-component polyurethane topcoat is greater than 140KU.

[0017] It can be seen from the above scheme that the above construction viscosity can improve the thixotropy of the polyurethane topcoat.

[0018] A further solution is that the total application amount of the water-based two-component polyurethane topcoat is 0.1 kg per square meter; the nano-silicon overprint varnish is 0.1 kg per square meter each time.

[0019] It can be seen from the above scheme that under the above construction dosage, while ensuring the use effect, the coating is thin, saving coating and saving costs.

[0020] 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.

[0021] A further solution is that a lubricant is coated on the composite coating on the surface of the slide, and preferably the lubricant is coated once a week.

[0022] 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 surface of the slide together with the nylon mat.

[0023] It can be seen from the above scheme that the slide maintenance method is simple and has a good friction reduction effect. While ensuring safety, the entertainment of the slide can be improved.

[0024] In order to achieve the third purpose mentioned above, the present invention provides a method for using the above-mentioned slide, which includes using the slide in combination with a nylon mat, a person or an object being located on the nylon mat, and the person or the object sliding down the surface of the slide together with the nylon mat; 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.

[0025] As can be seen from the above scheme, the nylon pad ensures a more stable sliding speed when sliding. The friction coefficient of the nylon pad is 0.35. Under high load conditions, the friction coefficient can be reduced to 0.1 to 0.15; the heat-resistant temperature is 121℃~149℃, which is suitable for outdoor use; the nylon pad has good wear resistance. Using nylon pads in composite coating slides can further avoid the problem of deceleration of people or objects on the slide and increase entertainment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the cross section of the surface coating of the slide of the present invention.

[0027] Figure 2 It is a schematic diagram of the entire slide of the present invention.

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

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

[0030] The coating method of the composite coating on the slide comprises the following steps: S1. Stir the water-based two-component polyurethane topcoat evenly and then apply it on the surface of the slide; S2. Use a sponge pattern roller to roll out the pattern before the surface of the water-based two-component polyurethane topcoat dries; S3. After rolling, place it to dry, and after confirming that the surface of the water-based two-component polyurethane topcoat is dry, apply nano-silicon varnish to form a smooth surface. The number of times the water-based two-component polyurethane topcoat is rolled in step S2 is at least twice; the number of times the nano-silicon varnish is applied in step S3 is at least twice. The coating method in steps S1 and S3 is rolling or spraying.

[0031] In this example, 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 siloxane 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 silicon 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 waterborne polyurethane paint of the present embodiment comprises the following steps:

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

[0036] S2. In the process of low-speed dispersion, 5 parts of polyether-modified siloxane leveling agent, 5 parts of defoaming agent, 5 parts of thixotropic anti-sagging agent and 5 parts of wetting leveling agent are sequentially added;

[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 during 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, adjust the viscosity to 105KU, and obtain 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 put it 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 a 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 are shown in Table 1 below according to relevant test standards:

[0048] Table 1

[0049] project parameter Detection Methods color Medium grey and other colors Visual inspection Fineness ≦30um GB / T 6753.1-2007 luster 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 Level 0 GB / T 1720-79 Salt spray resistant 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 varnish is composed of a ternary polymer with a high degree of branching, which is reorganized into an inorganic surface with a hardness of ≥4H. It can form a layer of coating with high hardness on the surface of objects. When the surface of clothes or objects is rubbed against, the high hardness surface avoids wear or scratches. The inorganic siloxane bond (-Si-O-Si-) in polysiloxane has high thermal stability and will not decompose or break due to chemical reactions in high temperature environments or heat generated by friction. The formed coating has good wear resistance and scratch resistance, high hardness, and extends the service life of ordinary coatings. At the same time, it has super strong adhesion, stain resistance, wear resistance, aging resistance, heat resistance, corrosion resistance, chemical resistance, insulation, good hydrophobicity, high hardness, and simple construction. It has strong fire resistance and water impact resistance, has a certain degree of flexibility, is non-toxic and pollution-free. It can be directly sprayed on the surface of various metals, non-metallic inorganic materials and some organic materials to form a hard layer of ceramic film similar to silica.

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

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

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

[0055] S2. Use a sponge roller to roll out patterns before the surface of the water-based two-component polyurethane topcoat dries. To make the patterns clearer, roll it a second time after one hour.

[0056] S3. After the coating is completed, place it to dry for 24 hours. After the surface of the water-based two-component polyurethane topcoat is determined to be dry, use a short-haired flat coating roller to apply the nano-silicon topcoat varnish. After 30 minutes, apply another layer of nano-silicon topcoat varnish to form a smooth surface.

[0057] The thickness and smoothness of the coating will not affect the performance, as long as the coating is applied to the necessary area. The coating obtained by the above coating method, wherein the water-based two-component polyurethane topcoat and the nano-silicon varnish have good adhesion, the water-based two-component polyurethane topcoat can be well fixed on the glass fiber surface of the slide, and by rolling the pattern with a sponge roughened roller before the water-based two-component polyurethane topcoat is not dry, the contact area with the nano-silicon varnish is increased, which indirectly promotes the adhesion of the nano-silicon varnish and ensures the firmness of the composite coating. On the basis of not changing the height and external structure of the slide, the safety of the slide is guaranteed, and the friction resistance of the slide surface is reduced by adding a smooth nano-silicon varnish, which increases the entertainment.

[0058] In the coating method of the composite coating on the slide of this embodiment, the application amount of the water-based two-component polyurethane topcoat is 5 kg of water-dispersible isocyanate and 0.75 kg of water-based polyurethane paint, and the total application amount is 0.1 kg per square meter; the nano-silicon varnish is 0.1 kg per square meter each time. The formed coating is thin, cost-saving and effective.

[0059] The composite coating on the slide surface obtained by the coating method of the composite coating on the slide in this embodiment is also coated with a lubricant, which is a commercially available lubricant. The lubricant is applied at night to allow the slide surface to absorb all the lubricant. After applying the lubricant, it is necessary to wait for 12 hours before using it. The lubricant is applied once a week for maintenance. The lubrication effect of the slide is enhanced to ensure entertainment.

[0060] See also Figure 1 The glass fiber surface 1 of the slide in this embodiment is coated with an uneven water-based two-component polyurethane topcoat 2, a nano-silicon varnish 3 forming a smooth surface is adhered to the water-based two-component polyurethane topcoat 2, and a lubricant 4 is coated on the nano-silicon varnish 3. The obtained slide has low friction resistance and high entertainment value.

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

[0062] Using TMY ceramic tile friction coefficient tester (L1105) at an ambient temperature of 21℃ to 25℃ and a relative humidity of 45% to 55%, the test was conducted according to GB / T 22374-2018. The dry friction coefficient was 0.11 when the friction block was wrapped with 60-mesh nylon mesh, and the dry friction coefficient was 0.55 when tested by the standard method without nylon cloth. This shows that the use of nylon pads on the slide can significantly reduce friction resistance, further avoid the problem of people or objects slowing down on the slide, and thus improve the entertainment of the slide. Using nylon pads of different densities can achieve different degrees of friction reduction effects, thereby achieving different sliding speeds.

[0063] The above embodiments are only 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 patent scope of the present invention should be included in the application scope of the present invention.

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 aid, 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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