A kind of epoxy wear-resistant and anti-skid floor material and its application

Abstract

The invention discloses an epoxy wear-resistant and anti-skid floor material. The formula raw materials of the epoxy wear-resistant and anti-skid floor material include the following components in parts by weight: 40-60 parts of epoxy-nylon resin, 4-9 parts of carbon fiber nylon composite powder, 4-6 parts of curing agent, 0.5-1.5 parts of accelerator, 1.5-3 parts of toughening agent, 5-8 parts of processing aid and 40-90 parts of solvent. The epoxy wear-resistant and anti-skid floor material of the invention has good hygroscopicity, high hardness, strong adhesion, is not easy to peel, is resistant to heavy loads, and is not easy to crack or fall off under heavy back and forth use. It solves the problems of existing epoxy floors in warehouses with heavy use, such as coating shedding and wear-through, which is not conducive to long-term use and has a short service life.

Description

Technical Field

[0001] The present invention relates to the technical field of floor materials, and in particular to an epoxy wear-resistant and anti-skid floor material and applications thereof. Background Art

[0002] Flooring refers to the use of specific materials and processes to construct the original ground and present a certain decorative and functional ground. Among them, epoxy flooring is widely used. Epoxy flooring is a high-performance ground coating material for different purposes and loads. It uses machinery or manual work to evenly apply epoxy resin floor paint on the surface and cure it at room temperature to form a seamless, strong, highly wear-resistant, acid and alkali corrosion-resistant protective layer on the surface. It is widely used in industrial plants, office buildings, underground parking garages, logistics warehouses, commercial centers, schools, supermarkets and other places.

[0003] In the existing technology, wear-resistant and anti-slip epoxy floors are all synthesized using epoxy resin, reinforcing agent, powder, and wear-resistant aggregate. However, the existing epoxy wear-resistant and anti-slip floors have adverse phenomena such as coating peeling and wear-through in heavily used warehouses, which is not conducive to long-term use and has a short service life. Summary of the Invention

[0004] In order to overcome the above-mentioned existing problems, the present invention provides an epoxy wear-resistant and anti-skid floor material and its application, which has good wear resistance, flexibility, fatigue resistance, anti-skid, high hardness and impact resistance.

[0005] The technical solution of the present invention is: an epoxy wear-resistant and anti-slip floor material, whose formula raw materials include the following components in parts by weight: 40-60 parts of epoxy-nylon resin, 4-9 parts of carbon fiber nylon composite powder, 4-6 parts of curing agent, 0.5-1.5 parts of accelerator, 1.5-3 parts of toughening agent and 40-90 parts of solvent.

[0006] Preferably, an epoxy wear-resistant and anti-slip floor material, whose formula raw materials include the following components in parts by weight: 45 parts of epoxy-nylon resin, 4.5 parts of carbon fiber nylon composite powder, 4.5 parts of curing agent, 0.8 parts of accelerator, 2 parts of active toughening agent and 54 parts of solvent.

[0007] The epoxy-nylon resin is nylon-modified bisphenol A epoxy resin.

[0008] The carbon fiber nylon composite powder has good tensile and tensile strength, good thermal insulation performance, good aging resistance, strong wear resistance, good moisture absorption performance, and a particle size of 50±20 microns. The particle size should not be too large, otherwise it will affect the toughness of the floor material. If it is too small, it will cause agglomeration and be difficult to disperse. Preferably, the weight ratio of carbon fiber nylon composite powder to epoxy-nylon resin is 1:10. The floor material obtained by this ratio has high hardness and excellent bonding strength and wear resistance. Too much carbon fiber nylon composite powder will reduce the toughness and bonding strength of epoxy-nylon resin and increase the cost. Too little will not achieve the required wear resistance. The carbon fiber nylon composite powder is spherical, and each powder particle has carbon fiber wrapped in nylon. Therefore, it has good compatibility with epoxy-nylon resin, and the thermal conductivity and moisture absorption of carbon fiber itself is used to improve the sensitivity of epoxy-nylon resin to high temperature and moisture.

[0009] The curing agent is a low molecular weight polyamide curing agent or a dicyandiamide curing agent, and the low molecular weight polyamide curing agent has a molecular weight of 300-350.

[0010] The accelerator is triethylamine or 2-ethyl-4-methylimidazole. The accelerator is used in combination with a curing agent to increase the curing speed of the epoxy-nylon resin. When used simultaneously with the carbon fiber nylon composite powder, the requirements for temperature and humidity during curing are reduced, thereby achieving room temperature curing.

[0011] The toughening agent is an active toughening agent, which uses liquid nitrile rubber or unsaturated polyester, urea-formaldehyde resin, and can greatly improve the problem of reduced toughness of epoxy-nylon resin caused by the addition of carbon fiber nylon composite powder, improve the impact strength and elongation of the floor material, improve brittleness, and thus reduce the probability of cracking.

[0012] The formula raw materials of the epoxy wear-resistant and anti-skid floor material of the present invention also include other processing aids, including but not limited to one or more of a dispersant, a defoaming agent and a colorant.

[0013] The solvent is a mixed solvent of butanol and xylene, which is 90% butanol and 10% xylene by weight. It has the characteristics of low toxicity, low volatility, low taste, etc., can effectively improve the rheological properties of epoxy-nylon resin, and is conducive to construction.

[0014] Application of the epoxy wear-resistant and anti-skid floor material of the present invention: floor paint is made according to the formulated raw materials and directly applied on the ground. It can be used after drying at room temperature for 5-7 days.

[0015] The beneficial effects of the present invention are:

[0016] 1. The epoxy wear-resistant and non-slip floor material of the present invention is made of epoxy-nylon resin and compounded with carbon fiber nylon composite powder. The epoxy-nylon resin itself has a rigid and flexible structure, is strong and tough, non-slip, has excellent mechanical properties, and has good low-temperature performance and chemical resistance. However, it is relatively sensitive to moisture, difficult to construct, and is not commonly used as floor paint. The compounded carbon fiber nylon composite powder of the present invention overcomes the problem that the epoxy-nylon resin itself is sensitive to moisture, and improves the sensitivity of the epoxy-nylon resin to high temperature and moisture by utilizing the thermal conductivity and hygroscopicity of the carbon fiber itself. At the same time, when used in combination with other ingredients, a synergistic effect is generated between the ingredients, thereby improving the overall wear resistance, high and low temperature resistance of the material, and having good hygroscopicity, high hardness, strong bonding force, not easy to peel off, heavy load resistance, and not easy to crack or fall off under heavy back and forth use, thereby solving the problem that the existing epoxy flooring has coating shedding, wear-through and other undesirable phenomena in heavily used warehouses, which is not conducive to long-term use and has a short service life.

[0017] 2. The epoxy wear-resistant and anti-skid floor material of the present invention can be made into floor paint according to the formula and directly applied on the ground. It has simple construction and fast drying speed, overcomes the stringent requirements of traditional floor paint on temperature and humidity, is resistant to aging and corrosion, has a long service life, and can be used for a long time. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to specific embodiments.

[0019] The formula of epoxy wear-resistant and anti-slip floor materials, calculated by weight, is shown in Table 1:

[0020] Table 1 Formula raw materials of embodiment and comparative example

[0021]

[0022]

[0023] Among the above raw materials, the nylon modified bisphenol A epoxy resin is DX7160 from Hunan Jiashengde Materials Technology Co., Ltd., and the carbon fiber nylon meets the powder particle size of 50-70 microns: the curing agent is a low molecular weight polyamide curing agent with a molecular weight of 300, the accelerator is triethylamine, the toughening agent is liquid nitrile rubber, the processing aid is a dispersant and a defoaming agent in a 1:1 ratio by weight, and the solvent is a mixed solvent of butanol and xylene, which is a mixed solvent of 90% butanol and 10% xylene by weight.

[0024] Floor paints were prepared according to the formulas of Examples 1 to 6 and Comparative Examples 1 and 2. The prepared floor paints were applied on corresponding cement boards and dried at room temperature for 7 days before various performance tests were performed:

[0025] (1) Pencil hardness test;

[0026] (2) Wear resistance, corrosion resistance, compressive strength, impact resistance, and tensile bond strength are tested in accordance with the standard GB / T22374-2018 "Floor Coating Materials";

[0027] (3) Aging resistance test: Tested in accordance with GB / T1865-2009 "Artificial weathering and artificial radiation exposure" (xenon arc radiation) and GB / T-1766-2008 "Rating method for coating aging"; evaluation method: 0 is the best and 5 is the worst;

[0028] (4) Moisture-heat destructiveness: The samples were placed at a temperature of 70°C and a humidity of 70% RH for 16 h, and then the breaking strength was tested using a tensile testing machine according to the method in GB / T30776-2014.

[0029] The test results are shown in Table 2 below.

[0030] Table 2 Performance test results

[0031]

[0032]

[0033] It can be seen from Table 1 that the weight ratios of epoxy-nylon resin and carbon fiber nylon composite powder in Examples 2-6 are 10:1, 10:1.1, 10:1.2, 10:1.3, 10:1.4 and 10:1.5, respectively; the weight ratio of epoxy-nylon resin and carbon fiber nylon composite powder in Comparative Example 1 is 10:0.5; and the weight ratio of epoxy-nylon resin and carbon fiber nylon composite powder in Comparative Example 2 is 10:2.

[0034] According to the test results in Table 2, we can see that:

[0035] 1. The floor paint made from the epoxy wear-resistant and anti-skid floor material of the present invention has a hardness of up to 6H, a tensile bonding strength of more than 5Mpa, a compressive strength of more than 200Mpa, a wear degree of less than 0.001, and excellent wear resistance.

[0036] 2. In Example 2 and Example 3, with other components remaining unchanged, increasing the amount of carbon fiber nylon composite powder can improve wear resistance and compressive strength, but the corresponding tensile bond strength will decrease.

[0037] 3. In Example 2 and Comparative Example 1, when other components remain unchanged, reducing the amount of carbon fiber nylon composite powder will reduce wear resistance, with a wear rate higher than 0.001, reduced compressive resistance, and cracks.

[0038] 4. In Example 2 and Comparative Example 2, with other components remaining unchanged, the weight ratio of epoxy-nylon resin to carbon fiber nylon composite powder was greater than 10:1.5. Due to excessive dosage, the tensile bond strength decreased and the paint film fell off during the compression test.

[0039] 5. In Examples 2-6, as the amount of epoxy-nylon resin increases, the moisture-heat destructive breaking strength decreases slightly. This is due to the sensitivity of the epoxy-nylon resin itself to moisture and heat. Therefore, the more epoxy-nylon resin is used, the better.

[0040] In summary, the epoxy floor paint made from the epoxy wear-resistant and anti-slip floor material of the present invention has high hardness, strong wear resistance, good toughness, good aging resistance, and moisture and heat resistance, and has excellent performance. Among them, the performance of Example 2 is the best.

[0041] Application of epoxy wear-resistant and anti-skid floor material: The epoxy floor paint prepared in Example 2 is applied on the ground using a coating device with a coating thickness of 2±0.5mm. It can be put into use after drying at room temperature for 7 days.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present invention shall be included in the scope of protection of the technical solution of the present invention.

Claims

1. An epoxy wear-resistant and non-slip floor material, characterized in that: By weight, the raw materials The invention comprises the following components: 40-60 parts of epoxy-nylon resin, 4-9 parts of carbon fiber nylon composite powder, 4-6 parts of curing agent, 0.5-1.5 parts of accelerator, 1.5-3 parts of toughening agent and 40-90 parts of solvent; The weight ratio of the carbon fiber nylon composite powder to the epoxy-nylon resin is 1:10; The particle size of the carbon fiber nylon composite powder is 50±20 microns; the epoxy-nylon resin is nylon-modified bisphenol A epoxy resin.

2. The epoxy wear-resistant and anti-skid floor material according to claim 1, characterized in that: The curing agent is a low molecular weight polyamide curing agent or a dicyandiamide curing agent.

3. The epoxy wear-resistant and anti-skid floor material according to claim 1, characterized in that: The accelerator is triethylamine or 2-ethyl-4-methylimidazole.

4. The epoxy wear-resistant and anti-skid floor material according to claim 1, characterized in that: The toughening agent is an active toughening agent, and is made of liquid nitrile rubber, unsaturated polyester or urea-formaldehyde resin.

5. The epoxy wear-resistant and anti-skid floor material according to claim 1, characterized in that: The solvent is a mixed solvent of butanol and xylene, which is 90% by weight of butanol and 10% by weight of xylene.

6. The epoxy wear-resistant and anti-skid floor material according to any one of claims 1 to 5, characterized in that: Its formula raw materials The invention comprises the following components: 45 parts of epoxy-nylon resin, 4.5 parts of carbon fiber nylon composite powder, 4.5 parts of curing agent, 0.8 parts of accelerator, 2 parts of active toughening agent and 54 parts of solvent.

7. The use of the epoxy wear-resistant and anti-skid floor material according to any one of claims 1 to 5, characterized in that: The floor paint is made according to the formula raw materials and applied directly on the ground. It can be used after drying at room temperature for 5-7 days.

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