High-skid-resistance PVC (polyvinyl chloride) floor and preparation method thereof

Abstract

The invention relates to the technical field of PVC floors, and provides a high-skid-resistance PVC floor and a preparation method thereof.The PVC floor is prepared from, by weight, 100 parts of PVC resin, 5-15 parts of glass fiber reinforced polyester polyurethane, 5-15 parts of compatilizer, 15-25 parts of plasticizer, 5-10 parts of flame retardant, 30-40 parts of inorganic skid-resistance particles, 2-5 parts of stabilizer and 1-3 parts of lubricant; the inorganic antiskid particles comprise the following components in parts by weight: 20-25 parts of calcium carbonate and 10-15 parts of modified aluminum oxide; the modified aluminum oxide is obtained by modifying aluminum oxide with ethyl 4-thiazoleacetate. Through the technical scheme, the problem of insufficient skid resistance in related technologies is solved.

Description

Technical Field

[0001] This invention relates to the field of PVC flooring technology, specifically to a high anti-slip PVC flooring and its preparation method. Background Technology

[0002] PVC (polyvinyl chloride) flooring, as a new type of environmentally friendly decorative material, boasts advantages such as high wear resistance, comfortable feel underfoot, sound insulation and shock absorption, antibacterial and moisture-proof properties, convenient construction, and controllable costs. Therefore, it is widely used in commercial offices, retail stores, schools, and ordinary homes. However, as its application scenarios continue to expand to high-traffic areas and specific locations with stringent safety requirements, higher demands are being placed on the anti-slip performance of PVC flooring.

[0003] To improve the anti-slip performance of PVC flooring, existing technologies often involve adding inorganic anti-slip particles to the PVC substrate. However, these inorganic particles suffer from uneven dispersion, leading to a decrease in the tensile strength of the flooring. Therefore, developing a high-slip PVC flooring with excellent tensile strength is of great significance for further expanding the application scenarios of PVC flooring and meeting the market demand for safe and environmentally friendly decorative materials. Summary of the Invention

[0004] This invention proposes a high anti-slip PVC flooring and its preparation method, which solves the problem of insufficient tensile strength of high anti-slip PVC flooring in related technologies.

[0005] The technical solution of the present invention is as follows: This invention proposes a high anti-slip PVC flooring, comprising the following components by weight: 100 parts PVC resin, 5-15 parts glass fiber reinforced polyester polyurethane, 5-15 parts compatibilizer, 15-25 parts plasticizer, 5-10 parts flame retardant, 30-40 parts inorganic anti-slip particles, 2-5 parts stabilizer, and 1-3 parts lubricant. The inorganic anti-slip particles comprise the following components by weight: 20-25 parts calcium carbonate and 10-15 parts modified alumina; The modified alumina was obtained by modifying alumina with ethyl 4-thiazolyl.

[0006] As a further technical solution, the mass ratio of the alumina to ethyl 4-thiazolyl is 100:5~7.

[0007] As a further technical solution, the preparation method of the modified alumina includes the following steps: dispersing the 4-thiazolyl ethyl acetate in a solvent, adding alumina and mixing, then filtering and drying to obtain the modified alumina.

[0008] As a further technical solution, the mixing temperature is 60~70℃, and the mixing time is 1~3h.

[0009] As a further technical solution, the glass fiber reinforced polyester polyurethane includes a first glass fiber reinforced polyester polyurethane and a second glass fiber reinforced polyester polyurethane, wherein the glass fiber content of the first glass fiber reinforced polyester polyurethane is lower than the glass fiber content of the second glass fiber reinforced polyester polyurethane.

[0010] As a further technical solution, the glass fiber content of the first glass fiber reinforced polyester polyurethane is 10%, and the glass fiber content of the second glass fiber reinforced polyester polyurethane is 20%.

[0011] In this invention, a blend of polyester polyurethane with 10% and 20% glass fiber content is used to improve the impact strength of PVC flooring. The first glass fiber reinforced polyester polyurethane, with 10% glass fiber content, exhibits better dispersion uniformity in the PVC resin matrix and enhances the toughness of the PVC substrate, reducing the risk of brittle fracture. However, its low glass fiber content limits its reinforcing effect, making it difficult to provide sufficient structural support under external impact. The second glass fiber reinforced polyester polyurethane, with 20% glass fiber content, further improves the mechanical strength of the PVC substrate due to its higher fiber ratio. The good dispersion of the first glass fiber reinforced polyester polyurethane mitigates the agglomeration problem of the second glass fiber reinforced polyester polyurethane due to its high glass fiber content, while the high rigidity of the second glass fiber reinforced polyester polyurethane further enhances the overall structural resistance to deformation. Together, they improve the impact strength of the PVC flooring.

[0012] As a further technical solution, the mass ratio of the first glass fiber reinforced polyester polyurethane and the second glass fiber reinforced polyester polyurethane is 6:3~5.

[0013] As a further technical solution, the plasticizer includes one or more of dioctyl phthalate, dibutyl phthalate, and diisodecyl phthalate.

[0014] As a further technical solution, the compatibilizer is an ethylene-vinyl acetate copolymer grafted with maleic anhydride.

[0015] As a further technical solution, the flame retardant includes one or both of magnesium hydroxide and aluminum hydroxide.

[0016] As a further technical solution, the stabilizer is a calcium-zinc stabilizer.

[0017] As a further technical solution, the lubricant includes one or more of paraffin wax, stearic acid, and polyethylene wax.

[0018] The present invention also proposes a method for preparing high anti-slip PVC flooring, which includes the following steps: mixing the raw materials of the components in the specified weight proportions, kneading, extruding, and molding to obtain high anti-slip PVC flooring.

[0019] The working principle and beneficial effects of this invention are as follows: This invention improves the anti-slip properties of PVC flooring by adding ethyl 4-thiazolyl to modify alumina. While alumina particles have high hardness and strong anti-slip properties, they exhibit poor compatibility with the PVC flooring matrix, leading to agglomeration and a decrease in tensile strength. Ethyl 4-thiazolyl, however, contains amino groups that can modify the alumina surface through hydrogen bonding. This modified alumina effectively avoids agglomeration and disperses more evenly in the matrix, thereby enhancing the tensile strength of the PVC flooring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] In the following examples and comparative examples: PVC resin, model: SG-5, manufacturer: Xinjiang Zhongtai (Group) Co., Ltd.; First glass fiber reinforced polyester polyurethane, model: 55-98A, manufacturer: Dongguan Bailing New Materials Co., Ltd.; Second glass fiber reinforced polyester polyurethane, model: R1000, manufacturer: BASF AG; Magnesium hydroxide, average particle size: 40 μm; Calcium carbonate, average particle size: 50 μm; Alumina, average particle size: 100 μm; Ethylene-vinyl acetate copolymer grafted with maleic anhydride, model: 30E753, manufacturer: DuPont, USA; Polyethylene wax, model: AC-6A, manufacturer: Honeywell (China) Co., Ltd.

[0022] Example 1 A high anti-slip PVC flooring comprises the following raw materials in parts by weight: 100 parts PVC resin, 5 parts first glass fiber reinforced polyester polyurethane, 5 parts ethylene-vinyl acetate copolymer grafted maleic anhydride, 15 parts dioctyl phthalate, 5 parts magnesium hydroxide, 20 parts calcium carbonate, 10 parts modified alumina, 2 parts calcium-zinc stabilizer, and 1 part polyethylene wax. The preparation method of modified alumina includes the following steps: 4-thiazolyl ethyl acetate is dispersed in anhydrous ethanol, alumina is added and mixed at 60°C for 3 hours, and then filtered and dried to obtain modified alumina; wherein, the mass-volume ratio of alumina to anhydrous ethanol is 1 g:7 mL, and the mass ratio of alumina to 4-thiazolyl ethyl acetate is 20:1. A method for preparing a high anti-slip PVC floor includes the following steps: mixing the above-mentioned raw materials for high anti-slip PVC floor, then kneading, extruding, and molding to obtain the high anti-slip PVC floor.

[0023] Example 2 A high anti-slip PVC flooring comprises the following components by weight: 100 parts PVC resin, 10 parts first glass fiber reinforced polyester polyurethane, 10 parts ethylene-vinyl acetate copolymer grafted maleic anhydride, 20 parts dioctyl phthalate, 7 parts magnesium hydroxide, 23 parts calcium carbonate, 12 parts modified alumina, 4 parts calcium-zinc stabilizer, and 2 parts polyethylene wax. The preparation method of modified alumina includes the following steps: 4-thiazolyl ethyl acetate is dispersed in anhydrous ethanol, alumina is added and mixed at 65°C for 2 hours, and then filtered and dried to obtain modified alumina; wherein, the mass-volume ratio of alumina to anhydrous ethanol is 1 g:7 mL, and the mass ratio of alumina to 4-thiazolyl ethyl acetate is 20:1. A method for preparing a high anti-slip PVC floor includes the following steps: mixing the above-mentioned raw materials for high anti-slip PVC floor, then kneading, extruding, and molding to obtain the high anti-slip PVC floor.

[0024] Example 3 A high anti-slip PVC flooring comprises the following components in parts by weight: 100 parts PVC resin, 15 parts first glass fiber reinforced polyester polyurethane, 15 parts ethylene-vinyl acetate copolymer grafted maleic anhydride, 25 parts dioctyl phthalate, 10 parts magnesium hydroxide, 25 parts calcium carbonate, 15 parts modified alumina, 5 parts calcium-zinc stabilizer, and 3 parts polyethylene wax. The preparation method of modified alumina includes the following steps: 4-thiazolyl ethyl acetate is dispersed in anhydrous ethanol, alumina is added and mixed at 70°C for 1 h, and then dried to obtain modified alumina; wherein, the mass-volume ratio of alumina to anhydrous ethanol is 1 g: 7 mL, and the mass ratio of alumina to 4-thiazolyl ethyl acetate is 20: 1. A method for preparing a high anti-slip PVC floor includes the following steps: mixing the raw materials for the high anti-slip PVC floor, then kneading, extruding, and molding to obtain the high anti-slip PVC floor.

[0025] Example 4 The only difference between this embodiment and Example 2 is that the mass ratio of alumina to ethyl 4-thiazolyl is 50:3 in this embodiment.

[0026] Example 5 The only difference between this embodiment and Example 2 is that the mass ratio of alumina to ethyl 4-thiazolyl is 100:7 in this embodiment.

[0027] Example 6 The only difference between this embodiment and Embodiment 2 is that the first glass fiber reinforced polyester polyurethane is replaced with an equal amount of the second glass fiber reinforced polyester polyurethane.

[0028] Example 7 The only difference between this embodiment and Embodiment 2 is that in this embodiment, the first glass fiber reinforced polyester polyurethane is replaced with equal amounts of the first glass fiber reinforced polyester polyurethane and the second glass fiber reinforced polyester polyurethane in a mass ratio of 2:1.

[0029] Example 8 The only difference between this embodiment and Embodiment 2 is that in this embodiment, the first glass fiber reinforced polyester polyurethane is replaced with equal amounts of the first glass fiber reinforced polyester polyurethane and the second glass fiber reinforced polyester polyurethane in a mass ratio of 3:2.

[0030] Example 9 The only difference between this embodiment and Embodiment 2 is that in this embodiment, the first glass fiber reinforced polyester polyurethane is replaced with equal amounts of the first glass fiber reinforced polyester polyurethane and the second glass fiber reinforced polyester polyurethane in a mass ratio of 6:5.

[0031] Comparative Example 1 The only difference between this comparative example and Example 2 is that the modified alumina is replaced with an equal amount of alumina in this comparative example.

[0032] Comparative Example 2 The only difference between this comparative example and Example 2 is that ethyl 4-thiazolyl is replaced with an equal amount of silane coupling agent KH-550 in this comparative example.

[0033] Test case The high-slip-resistant PVC flooring prepared in Examples 1-9 and Comparative Examples 1-2 was tested according to the following method: 1. Tensile strength: The test was conducted according to the method specified in GB / T 10654-2001 "Determination of tensile strength and elongation at break of porous polymer materials", with a sample thickness of 10 mm and a moving speed of 500 mm / min. The test results are shown in Table 1 below.

[0034] 2. Anti-slip value: The anti-slip value of PVC flooring in a dry state was tested according to the method specified in GB 36246-2018 "Synthetic Material Surface Sports Fields for Primary and Secondary Schools". The test results are shown in Table 2 below.

[0035] 3. Impact strength: The unnotched impact strength of the simply supported beam was tested according to GB / T 1043.1-2008 "Determination of impact properties of simply supported beams - Part 1: Non-instrumental impact test". The test specimen was a type 1 specimen with a thickness of 4 mm. The test results are shown in Table 3 below.

[0036] Table 1 Performance test results of Examples 1-5 and Comparative Examples 1-2

[0037] The tensile strength of Examples 1-5 is higher than that of Comparative Examples 1-2, indicating that the present invention improves the tensile strength of PVC flooring by adding alumina modified with ethyl 4-thiazolyl.

[0038] Table 2 Performance test results of Examples 1-3 and Comparative Examples 1-2

[0039] The anti-slip values ​​of Examples 1-3 are higher than those of Comparative Examples 1-2, indicating that the present invention improves the anti-slip properties of PVC flooring by adding alumina modified with ethyl 4-thiazolyl.

[0040] Table 3 Performance test results of Examples 2 and 6-9

[0041] The impact strength of Examples 7-9 is higher than that of Examples 2 and 6, indicating that the present invention improves the impact strength of PVC flooring by compounding polyester polyurethane with 10% glass fiber content and polyester polyurethane with 20% glass fiber content.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-slip-resistant PVC flooring, characterized in that, PVC flooring comprises the following raw materials in parts by weight: 100 parts PVC resin, 5-15 parts glass fiber reinforced polyester polyurethane, 5-15 parts compatibilizer, 15-25 parts plasticizer, 5-10 parts flame retardant, 30-40 parts inorganic anti-slip particles, 2-5 parts stabilizer, and 1-3 parts lubricant. The inorganic anti-slip particles comprise the following components by weight: 20-25 parts calcium carbonate and 10-15 parts modified alumina; The modified alumina was obtained by modifying alumina with ethyl 4-thiazolyl.

2. The high anti-slip PVC flooring according to claim 1, characterized in that, The mass ratio of alumina to ethyl 4-thiazolyl is 100:5~7.

3. The high anti-slip PVC flooring according to claim 1, characterized in that, The method for preparing the modified alumina includes the following steps: dispersing the 4-thiazolyl ethyl acetate in a solvent, adding alumina and mixing, then filtering and drying to obtain the modified alumina.

4. The high anti-slip PVC flooring according to claim 3, characterized in that, The mixing temperature is 60~70℃, and the mixing time is 1~3h.

5. The high anti-slip PVC flooring according to claim 1, characterized in that, The glass fiber reinforced polyester polyurethane includes a first glass fiber reinforced polyester polyurethane and a second glass fiber reinforced polyester polyurethane, wherein the glass fiber content of the first glass fiber reinforced polyester polyurethane is lower than that of the second glass fiber reinforced polyester polyurethane.

6. The high anti-slip PVC flooring according to claim 5, characterized in that, The first glass fiber reinforced polyester polyurethane has a glass fiber content of 10%, and the second glass fiber reinforced polyester polyurethane has a glass fiber content of 20%.

7. The high anti-slip PVC flooring according to claim 6, characterized in that, The mass ratio of the first glass fiber reinforced polyester polyurethane to the second glass fiber reinforced polyester polyurethane is 6:3~5.

8. The high anti-slip PVC flooring according to claim 1, characterized in that, The plasticizer includes one or more of dioctyl phthalate, dibutyl phthalate, and diisodecyl phthalate.

9. A high-slip PVC flooring according to claim 1, characterized in that, The flame retardant includes one or both of magnesium hydroxide and aluminum hydroxide.

10. A method for preparing a high-slip-resistant PVC flooring, used to prepare the high-slip-resistant PVC flooring according to any one of claims 1 to 9, characterized in that, Includes the following steps: The raw materials of the stated weight components are mixed, kneaded, extruded, and molded to obtain a high-slip PVC floor.

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