Solid-resistant antiskid polyurethane coating protection layer and process

Abstract

The invention discloses a solid-resistant anti-skid polyurethane coating protective layer which is characterized in that a plurality of floating solid-resistant anti-skid particles are sown on the surface of a liquid polyurethane coating self-leveling layer, and the plurality of solid-resistant anti-skid particles are uniformly spread on the upper part of the polyurethane coating self-leveling layer in a floating form; after the liquid polyurethane coating self-leveling layer is cured, an upper-layer structure, a middle-layer structure and a lower-layer structure are formed, and the upper-layer structure, the middle-layer structure and the lower-layer structure are the surface discrete protrusion anti-skid strengthening layer, the solid-resistant inlaying layer and The anti-skid performance of the self-leveling polyurethane coating is improved.

Description

Technical Field

[0001] The invention belongs to the field of coatings. Background Art

[0002] After the self-leveling paint on the cement floor is cured, the surface is smooth and flat. Its flat paint surface structure does not have an anti-slip function. It is very easy for the elderly and children to slip and fall when walking on the smooth self-leveling paint surface, especially when the ground is wet. In the existing process of improving the anti-slip of the paint surface, sand can be spread on the surface of the paint before it is about to solidify, so as to increase the roughness. This method of spreading sand requires grasping the timing of spreading the sand. If it is spread too early, the sand will sink too much in the paint surface, resulting in the inability to form surface protrusions. If it is spread too late, the paint surface will have solidified and the sand will not be able to bond with the paint. At the same time, due to the high hardness of the sand and the sharp surface, it is easy to scratch the soles of the feet. At the same time, the sand on the surface of the paint is easy to fall off and the spreading is not uniform. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a solid-resistant and anti-skid polyurethane coating protective layer and process to improve the anti-skid performance of self-leveling polyurethane coatings.

[0004] Technical solution: To achieve the above-mentioned purpose, the solid-resistant and anti-skid polyurethane coating protective layer of the present invention has a plurality of floating solid-resistant and anti-skid particles sprinkled on the surface of the liquid polyurethane coating self-leveling layer, and the plurality of solid-resistant and anti-skid particles are evenly spread on the upper part of the polyurethane coating self-leveling layer in a floating form. After the liquid polyurethane coating self-leveling layer is cured, a three-layer structure of upper, middle and lower layers is formed, which are a surface discrete raised anti-skid reinforcement layer, a solid-resistant inlaid layer and a polyurethane coating bottom layer.

[0005] Furthermore, any single solid-resistant and anti-skid particle is a particle structure that is light on the top and heavy on the bottom, which is assembled from conical rubber particles and a metal skeleton.

[0006] Furthermore, the metal frame includes a metal counterweight chassis, a metal central structural column is coaxially arranged on the upper end of the metal counterweight chassis, and the top of the metal central structural column is a metal spherical top;

[0007] The conical rubber particles include a conical ring-shaped rubber body, the upper end of the conical ring-shaped rubber body is integrally provided with a rubber elastic spherical anti-skid top, and a structural column passing channel is provided through the axis of the integral structure formed by the conical ring-shaped rubber body and the rubber elastic spherical anti-skid top;

[0008] When the conical rubber particles and the metal frame are assembled, the metal central structural column is interference-fitted and passes upward through the structural column through-channel, and the metal spherical top and the outer spherical surface of the rubber elastic spherical anti-skid top are on the same spherical surface; the upper surface of the metal counterweight chassis is in contact with the rough end surface of the conical ring-shaped rubber body; an inner ring groove is provided in the middle of the inner wall of the structural column through-channel;

[0009] A comprehensive density adjustment hollow space is formed between the inner ring groove and the outer wall of the metal central structural column. The comprehensive density adjustment hollow space makes the solid-resistant anti-skid particles generally present a structure that is light on the top and heavy on the bottom, and makes the comprehensive density of the solid-resistant anti-skid particles lower than the density of the liquid polyurethane coating self-leveling layer. After the solid-resistant anti-skid particles are put into the liquid polyurethane coating self-leveling layer, under the action of buoyancy, the metal spherical top of the solid-resistant anti-skid particles automatically faces upward, and the rubber elastic spherical anti-skid top is exposed above the liquid surface, forming a part of the surface discrete raised anti-skid reinforcement layer; the conical ring rubber body is just immersed in the liquid polyurethane coating self-leveling layer, forming a part of the solid-resistant inlaid layer.

[0010] Furthermore, a cross-shaped wall is provided on the lower side of the metal counterweight chassis.

[0011] Furthermore, the overall longitudinal dimension range of any single solid-resistant and anti-skid particle in a floating state is 4 mm to 5 mm.

[0012] Furthermore, in the solid-resistant inlay layer, each metal weight chassis is tangent to each other.

[0013] Furthermore, the polyurethane coating self-leveling emulsion constituting the liquid polyurethane coating self-leveling layer includes, by weight, 20 to 40 parts of water, 60 to 75 parts of polyurethane resin, 15 to 17 parts of dimethylaminoethyl acrylate, 35 to 60 parts of filler, 16 to 18 parts of curing agent, 1.5 parts of leveling agent, 1 to 12 parts of dispersant, 0.6 to 0.8 parts of defoaming agent, and 2 to 5 parts of diluent.

[0014] Furthermore, the construction method of the solid-resistant and anti-skid polyurethane coating protective layer comprises the following steps:

[0015] Step 1: Pour the polyurethane coating self-leveling emulsion on the ground of a specific enclosed area for self-leveling to form a liquid polyurethane coating self-leveling layer, and the thickness of the liquid polyurethane coating self-leveling layer is not less than 8 mm;

[0016] Step 2: gradually spreading a number of solid-resistant anti-skid particles in the liquid polyurethane coating self-leveling layer;

[0017] Step three: Let it stand for a certain period of time to allow the originally liquid polyurethane coating self-leveling layer to completely solidify.

[0018] Beneficial effect: The plurality of rubber elastic spherical anti-skid tops originally exposed on the surface of the liquid polyurethane coating self-leveling layer of the present invention together constitute a surface discrete raised anti-skid reinforcement layer, and the rubber elastic spherical anti-skid top 7 plays an anti-skid role. At the same time, the metal central structural column at the axis of the rubber elastic spherical anti-skid top can play a role in resisting lateral shear force, preventing the rubber elastic spherical anti-skid top from breaking when subjected to lateral impact force; at the same time, the metal spherical top at the top of the rubber elastic spherical anti-skid top enables the rubber part of the rubber elastic spherical anti-skid top to avoid friction, thereby significantly improving the wear resistance of the surface discrete raised anti-skid reinforcement layer; forming a plurality of conical ring-shaped rubber bodies and metal counterweights in the solid-resistant inlaid layer The chassis and the "cross"-shaped wall are embedded in the solidified polyurethane coating. In the solid-resistant embedded layer, the bottoms of the metal counterweights are tangent to each other to form a mesh structure that is closely attached to each other and embedded in the solidified polyurethane coating. Several adjacent solid-resistant anti-skid particles constrain each other in the horizontal direction, thereby improving the displacement resistance, rollover resistance and solid resistance of each solid-resistant anti-skid particle under the action of external force. At the same time, due to the thin top and thick bottom structure of the solid-resistant anti-skid particles, the lower parts of two adjacent solid-resistant anti-skid particles constrain each other in the horizontal direction, so that the rubber elastic spherical anti-skid top 7 on the upper side of the surface discrete raised anti-skid reinforcement layer is automatically discretely distributed, thereby avoiding the problem of the rubber elastic spherical anti-skid tops sticking to each other and forming a mass. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the longitudinal section layered structure of this scheme;

[0020] Figure 2 This is a schematic diagram of the local range of the coating of this scheme from a top-down perspective;

[0021] Figure 3 It is a schematic diagram of the structure of a single solid-resistant and anti-skid particle in the assembled state;

[0022] Figure 4 This is a schematic diagram of disassembling a single solid-resistant and anti-skid particle;

[0023] Figure 5 It is a cross-sectional view of a single solid-resistant and anti-skid particle. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] As attached Figures 1 to 5The solid-resistant and anti-skid polyurethane paint protective layer shown in the figure has a plurality of floating solid-resistant and anti-skid particles 80 sprinkled on the surface of the liquid polyurethane paint self-leveling layer 90, and the plurality of solid-resistant and anti-skid particles 80 are evenly spread in a floating form on the upper part of the polyurethane paint self-leveling layer 90 to form a solid-resistant and anti-skid protective layer 91. After the liquid polyurethane paint self-leveling layer 90 is cured, a three-layer structure of upper, middle and lower layers is formed, which are a surface discrete raised anti-skid reinforcement layer 10, a solid-resistant inlaid layer 11 and a polyurethane paint bottom layer 12, wherein the discrete raised anti-skid reinforcement layer 10 and the solid-resistant inlaid layer 11 together constitute the solid-resistant and anti-skid protective layer 91.

[0026] like Figures 3 to 5 As shown, any single solid-resistant and anti-skid particle 80 is a particle structure with a light top and a heavy bottom, which is assembled by a conical rubber particle 80a and a metal skeleton 80b. The conical rubber particle 80a and the metal skeleton 80b in this case are chlorosulfonated polyethylene rubber and aluminum alloy respectively.

[0027] The metal skeleton 80b includes a metal counterweight chassis 2, and a metal central structural column 1 is coaxially and integrally arranged on the upper end of the metal counterweight chassis 2, and the top of the metal central structural column 1 is a metal spherical top 5; the conical rubber particle 80a includes a conical ring-shaped rubber body 4, and a rubber elastic spherical anti-skid top 7 is integrally arranged on the upper end of the conical ring-shaped rubber body 4, and a structural column passing channel 8 is penetrated at the axis center of the integrated structure formed by the conical ring-shaped rubber body 4 and the rubber elastic spherical anti-skid top 7; when the conical rubber particle 80a and the metal skeleton 80b are assembled, the metal central structural column 1 passes upward through the structural column passing channel 8 with an interference fit, and the outer spherical surface of the metal spherical top 5 and the rubber elastic spherical anti-skid top 7 are on the same spherical surface; the upper surface of the metal counterweight chassis 2 is in contact with the rough end surface of the conical ring-shaped rubber body 4; an inner ring groove 6a is arranged in the middle of the inner wall of the structural column passing channel 8.

[0028] A comprehensive density adjustment hollow chamber 6 is formed between the inner annular groove 6a and the outer wall of the metal central structural column 1. The comprehensive density adjustment hollow chamber 6 makes the solid-resistant anti-skid particles 80 generally present a light upper part and heavy lower part structure, and makes the comprehensive density of the solid-resistant anti-skid particles 80 lower than the density of the liquid polyurethane coating self-leveling layer 90. After the solid-resistant anti-skid particles 80 are put into the liquid polyurethane coating self-leveling layer 90, under the action of buoyancy, the metal spherical top 5 of the solid-resistant anti-skid particles 80 automatically faces upward, and the rubber elastic spherical anti-skid top 7 is exposed above the liquid surface, forming a part of the surface discrete raised anti-skid reinforcement layer 10; the conical ring-shaped rubber body 4 is just immersed in the liquid polyurethane coating self-leveling layer 90, forming a part of the solid-resistant inlaid layer 11; a "cross" shaped wall 3 is arranged on the lower side of the metal counterweight chassis 2 to improve the grip of the metal counterweight chassis 2.

[0029] The overall longitudinal dimension range of any single solid-resistant anti-skid particle 80 in a floating state is 4 mm-5 mm; the thickness of the liquid polyurethane coating self-leveling layer 90 is not less than 8 mm.

[0030] In the solid-resistant inlaid layer 11, each metal counterweight chassis 2 is tangent to each other, so that after the paint is cured, several adjacent solid-resistant anti-skid particles 80 that were originally horizontally floating and spread can constrain each other in the horizontal direction, thereby improving the displacement resistance of each solid-resistant anti-skid particle 80 under the action of external force; at the same time, due to the thin top and thick bottom structure of the solid-resistant anti-skid particles 80, the lower parts of two adjacent solid-resistant anti-skid particles 80 constrain each other in the horizontal direction, so that the rubber elastic spherical anti-skid top 7 exposed to the upper side of the liquid surface of the liquid polyurethane paint self-leveling layer 90 is automatically discretely distributed, avoiding the problem of the rubber elastic spherical anti-skid tops 7 sticking to each other and forming clumps.

[0031] The polyurethane coating self-leveling emulsion constituting the liquid polyurethane coating self-leveling layer 90 includes, by weight, 20 to 40 parts of water, 60 to 75 parts of polyurethane resin, 15 to 17 parts of dimethylaminoethyl acrylate, 35 to 60 parts of filler, 16 to 18 parts of curing agent, 1.5 parts of leveling agent, 1 to 12 parts of dispersant, 0.6 to 0.8 parts of defoaming agent, and 2 to 5 parts of diluent.

[0032] The construction method of the solid-resistant anti-skid polyurethane coating protective layer comprises the following steps:

[0033] Step 1: Pour the polyurethane coating self-leveling emulsion on the ground of the specific enclosed area for self-leveling to form a liquid polyurethane coating self-leveling layer 90, and make the thickness of the liquid polyurethane coating self-leveling layer 90 not less than 8 mm;

[0034] Step 2: gradually spread a number of anti-skid particles 80 in the liquid polyurethane coating self-leveling layer 90. The anti-skid particles 80 spread in the liquid polyurethane coating self-leveling layer 90, under the action of buoyancy, the metal spherical top 5 of the anti-skid particles 80 automatically faces upward, and the rubber elastic spherical anti-skid top 7 is exposed above the liquid surface, and the conical ring rubber body 4 is just immersed in the liquid polyurethane coating self-leveling layer 90;

[0035] As the number of the sowing solid-resistant anti-skid particles 80 gradually increases, the solid-resistant anti-skid particles 80 in the liquid polyurethane coating self-leveling layer 90 gradually become denser. Due to the thin upper and thick lower structure of the solid-resistant anti-skid particles 80, they are horizontally spread on the surface of the liquid polyurethane coating self-leveling layer 90, and the metal weighted chassis 2 of each adjacent two solid-resistant anti-skid particles 80 gradually become tangent to each other, and gradually make the lower parts of any two adjacent solid-resistant anti-skid particles 80 mutually restrain each other in the horizontal direction, so that the rubber elastic spherical anti-skid tops 7 exposed on the upper side of the liquid surface of the liquid polyurethane coating self-leveling layer 90 are automatically distributed in a discrete manner, avoiding the problem of the rubber elastic spherical anti-skid tops 7 exposed above the liquid surface sticking to each other and forming a mass;

[0036] Step 3: let it stand for a certain period of time to allow the liquid polyurethane coating self-leveling layer 90 to completely solidify. The rubber elastic spherical anti-skid tops 7 originally exposed on the surface of the liquid polyurethane coating self-leveling layer 90 together form a surface discrete raised anti-skid reinforcement layer 10. Figure 2 As shown, the rubber elastic spherical anti-skid top 7 plays an anti-skid role, and at the same time, the metal central structural column 1 at the axis of the rubber elastic spherical anti-skid top 7 can play a role in resisting lateral shear force, preventing the rubber elastic spherical anti-skid top 7 from breaking when subjected to lateral impact force; at the same time, the metal spherical top 5 at the top of the rubber elastic spherical anti-skid top 7 allows the rubber part of the rubber elastic spherical anti-skid top 7 to avoid friction, thereby significantly improving the wear resistance of the surface discrete raised anti-skid reinforcement layer 10; a plurality of conical rubber bodies 4, a metal counterweight chassis 2 and a "cross" wall 3 in the anti-solid inlay layer 11 are embedded in the cured polyurethane coating, and in the anti-solid inlay layer In the embedded layer 11, each metal counterweight chassis 2 is tangent to each other to form a closely connected mesh structure embedded in the cured polyurethane coating, and several adjacent solid-resistant anti-skid particles 80 constrain each other in the horizontal direction, thereby improving the displacement resistance, rollover resistance and solid resistance of each solid-resistant anti-skid particle 80 under the action of external force; at the same time, due to the thin top and thick bottom structure of the solid-resistant anti-skid particles 80, the lower parts of two adjacent solid-resistant anti-skid particles 80 constrain each other in the horizontal direction, so that the rubber elastic spherical anti-skid top 7 on the upper side of the surface discrete raised anti-skid reinforcement layer 10 is automatically discretely distributed, thereby avoiding the problem of the rubber elastic spherical anti-skid tops 7 sticking to each other and forming a mass.

[0037] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. The solid-resistant and non-slip polyurethane coating protective layer is characterized by: A plurality of solid-resistant anti-skid particles (80) in a floating state are spread on the surface of a liquid polyurethane coating self-leveling layer (90); the plurality of solid-resistant anti-skid particles (80) are evenly spread on the upper part of the polyurethane coating self-leveling layer (90) in a floating form; and after solidification, the liquid polyurethane coating self-leveling layer (90) forms an upper, middle and lower three-layer structure, which respectively comprises a surface discrete protruding anti-skid reinforcement layer (10), a solid-resistant inlaid layer (11) and a polyurethane coating bottom layer (12).

2. The solid-resistant and anti-skid polyurethane coating protective layer according to claim 1, characterized in that: Any single solid-resistant anti-skid particle (80) is a particle structure that is light on the top and heavy on the bottom, assembled from cone-shaped rubber particles (80a) and a metal skeleton (80b).

3. The solid-resistant and anti-skid polyurethane coating protective layer according to claim 2, characterized in that: The metal frame (80b) comprises a metal counterweight chassis (2), the upper end of the metal counterweight chassis (2) is coaxially and integrally provided with a metal central structural column (1), and the top end of the metal central structural column (1) is a metal spherical top (5); The conical rubber particle (80a) comprises a conical ring-shaped rubber body (4), the upper end of the conical ring-shaped rubber body (4) is integrally provided with a rubber elastic spherical anti-skid top (7), and a structural column passing channel (8) is provided through the axis of the integral structure formed by the conical ring-shaped rubber body (4) and the rubber elastic spherical anti-skid top (7); When the conical rubber particles (80a) and the metal skeleton (80b) are assembled, the metal central structural column (1) is interference-fitted and passes upward through the structural column passage (8), and the metal spherical top (5) and the outer spherical surface of the rubber elastic spherical anti-skid top (7) are on the same spherical surface; the upper surface of the metal counterweight chassis (2) is in contact with the rough end surface of the conical ring-shaped rubber body (4); and an inner ring groove (6a) is provided in the middle of the inner wall of the structural column passage (8); A comprehensive density adjustment hollow space (6) is formed between the inner annular groove (6a) and the outer wall of the metal central structural column (1). The comprehensive density adjustment hollow space (6) makes the solid-resistant anti-skid particles (80) generally present a structure that is light on the top and heavy on the bottom, and makes the comprehensive density of the solid-resistant anti-skid particles (80) lower than the density of the liquid polyurethane coating self-leveling layer (90). After the solid-resistant anti-skid particles (80) are put into the liquid polyurethane coating self-leveling layer (90), under the action of buoyancy, the metal spherical top (5) of the solid-resistant anti-skid particles (80) automatically faces upward, and the rubber elastic spherical anti-skid top (7) is exposed above the liquid surface, forming a part of the surface discrete protrusion anti-skid reinforcement layer (10); the conical ring-shaped rubber body (4) is just immersed in the liquid polyurethane coating self-leveling layer (90), forming a part of the solid-resistant inlaid layer (11).

4. The solid-resistant and anti-skid polyurethane coating protective layer according to claim 3, characterized in that: A cross-shaped wall (3) is arranged on the lower side of the metal counterweight chassis (2).

5. The solid-resistant and anti-skid polyurethane coating protective layer according to claim 3, characterized in that: The overall longitudinal dimension of any single solid-resistant and anti-skid particle (80) in a floating state is in the range of 4 mm to 5 mm.

6. The solid-resistant and anti-skid polyurethane coating protective layer according to claim 3, characterized in that: In the solid-resistant inlay layer (11), each metal weight chassis (2) is tangent to each other.

7. The solid-resistant and anti-skid polyurethane coating protective layer according to claim 1, characterized in that: The polyurethane coating self-leveling emulsion constituting the liquid polyurethane coating self-leveling layer (90) comprises, by weight, 20-40 parts of water, 60-75 parts of polyurethane resin, 15-17 parts of dimethylaminoethyl acrylate, 35-60 parts of filler, 16-18 parts of curing agent, 1.5 parts of leveling agent, 1-12 parts of dispersant, 0.6-0.8 parts of defoaming agent, and 2-5 parts of diluent.

8. The construction method of the solid-resistant and anti-skid polyurethane coating protective layer according to claim 4 is characterized in that: The steps include: Step 1, pouring the polyurethane coating self-leveling emulsion on the ground of the specific enclosed area for self-leveling to form a liquid polyurethane coating self-leveling layer (90), and making the thickness of the liquid polyurethane coating self-leveling layer (90) not less than 8 mm; Step 2: gradually spreading a number of solid-resistant and anti-skid particles (80) in the liquid polyurethane coating self-leveling layer (90); Step 3: Let the self-leveling layer (90) of the polyurethane coating in the original liquid state stand for a certain period of time to completely solidify.

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