High-wear-resistance floor and preparation process thereof

Abstract

The invention relates to the technical field of new materials, and discloses a high-wear-resistance floor and a preparation process thereof.The preparation process comprises the steps that flexible acrylic resin, polyester elastomer, a self-crosslinking auxiliary, maleimide ester polysiloxane, a low-gloss component and an antioxidant are mixed and extruded in a double-screw extruder, and a polyester blend is obtained; and mixing the polyester blend, polyvinyl chloride, slag, a lubricant, a stabilizer and a plasticizer, and extruding in a double-screw extruder to obtain the high-wear-resistance floor. The maleimide ester-based polysiloxane has dynamic thiol-maleimide bonds, provides dynamic performance for the high-wear-resistance floor through network topology rearrangement generated by imine exchange reaction at high temperature, has a long chain, can effectively regulate and control the flexibility of materials as a flexible touch regulator, and can be used for preparing the high-wear-resistance floor, so that the flexibility of the high-wear-resistance floor is greatly improved, and the service life of the high-wear-resistance floor is prolonged. The floor material disclosed by the invention is good in wear resistance and high in flexibility, has a self-healing function, and is beneficial to prolonging the service life and reducing the maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of new materials, in particular to a high-wear-resistant floor and a preparation process thereof. Background Art

[0002] As a core material for building decoration, flooring's wear resistance directly determines its service life and user experience. While solid wood floors are aesthetically pleasing, they have limited wear resistance and are easily deformed by moisture. Laminated composite flooring's wear-resistant layer (such as aluminum oxide) improves hardness, but often sacrifices foot comfort and impact toughness, and severe scratches on the surface are difficult to repair. PVC flooring offers excellent flexibility but relatively poor wear resistance, making it particularly susceptible to wear and aging in high-traffic areas. Patent publication number CN115368690B discloses a PVC floor and its preparation method. Using polyvinyl chloride, acrylic modified resin, chlorinated polyethylene, and other materials, the resulting PVC floor exhibits high toughness. However, the patent fails to improve the wear resistance and other properties of the PVC flooring material, hindering its service life and reducing maintenance costs.

[0003] Self-healing polymers have shown great potential in a variety of fields, with the core of these technologies being the introduction of dynamically reversible chemical bonds. However, applying these technologies to mass-produced flooring products faces significant challenges: first, the difficulty of balancing performance. Self-healing properties often require the material to possess good chain segment mobility or responsiveness to stimuli (such as heat and light), which can conflict with the rigidity and hardness required for high wear resistance. Second, process complexity and cost. Many self-healing systems require complex synthesis steps or require specific external conditions to trigger repair, making them difficult to adapt to the efficiency and cost requirements of industrial flooring production. Third, compatibility with existing substrates and composite stability are key bottlenecks in implementing these technologies. Effectively and stably incorporating self-healing components into common flooring base materials such as PVC, acrylic resins, and polyester elastomers, while ensuring the uniformity and durability of the final composite material, are key bottlenecks in achieving this technology. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a highly wear-resistant floor and a preparation process thereof, which solves the problems of poor wear resistance and self-healing properties of floor materials.

[0005] In one aspect, the present invention provides a process for preparing a high-wear-resistant floor, comprising the following steps: Step (1), heating N,N'-4,4-phenylbenzoate bismaleimide, mercapto polysiloxane, and catalyst 1,8-diazabicycloundec-7-ene at a mass ratio of (10-40):100:(3-5) to 20-35°C and stirring for reaction for 1-2h to obtain maleimide ester polysiloxane; Step (2): mixing a flexible acrylic resin, a polyester elastomer, a self-crosslinking auxiliary agent, a maleimide ester polysiloxane, a low-gloss component, and an antioxidant, extruding the mixture in a twin-screw extruder at a temperature of 100-180° C. in each section, and granulating the mixture to obtain a polyester blend; then mixing the polyester blend, polyvinyl chloride, slag, a lubricant, a stabilizer, and a plasticizer, extruding the mixture in a twin-screw extruder at a temperature of 110-180° C. in each section, shaping the mixture through a mold after extrusion, and cooling the mixture to obtain a high-wear-resistant floor.

[0006] Furthermore, in step (2), the mass ratio of the flexible acrylic resin, polyester elastomer, maleimide ester polysiloxane, polyvinyl chloride, and slag is (10-25): (10-25): (1-4): (100): (50-60).

[0007] Furthermore, the low gloss component is MBX-40, MBX-5 or MBX-60; the antioxidant is antioxidant 1010 or antioxidant 264; the lubricant is stearic acid, calcium stearate or zinc stearate; the stabilizer is a lead salt stabilizer; and the plasticizer is dioctyl phthalate.

[0008] Furthermore, the preparation method of mercaptopolysiloxane is as follows: octamethylcyclotetrasiloxane, mercaptopropyl (dimethoxy)methylsilane, hexamethyldisiloxane, water, and trifluoromethanesulfonic acid are added to a flask in a mass ratio of (80-92): (70-276): (1.7-4.2): (15-58): (1.5-4.6), heated to 80-90°C, stirred and reacted for 7-10 hours, dissolved in n-hexane, washed with water, and dried to obtain mercaptopolysiloxane. The reaction formula is: .

[0009] Furthermore, the preparation method of N,N'-4,4-phenylbenzoate bismaleimide is as follows: maleic anhydride and toluene are added to a flask, stirred, and then p-aminophenyl para-aminobenzoate is added, and the mixture is reacted at 20-30°C for 2-3 hours, and then p-toluenesulfonic acid is added, and the mixture is heated to 110-120°C, refluxed for 4-6 hours, and the solvent is removed by distillation under reduced pressure, and dried to obtain N,N'-4,4-phenylbenzoate bismaleimide. The reaction formula is: .

[0010] Furthermore, the molar ratio of p-aminophenyl p-aminobenzoate, maleic anhydride, and p-toluenesulfonic acid is 1:(2-2.2):(0.25-0.34).

[0011] Another aspect of the present invention provides a highly wear-resistant floor obtained by the above-mentioned preparation process.

[0012] Beneficial effects: The high-wear-resistant floor of the present invention adopts flexible acrylic ester to add self-crosslinking components, and self-crosslinking is carried out during the co-extrusion process to obtain highly cross-linked flexible acrylic ester. As the degree of polymerization of acrylic ester increases, the degree of entanglement of the molecular chains increases. Even in the plasticizing system, the molecular chains can form a cross-linked network structure, which makes it difficult for the macromolecules to move and not easy to produce irreversible slip, so that the impact resilience of the high-wear-resistant floor increases with the increase of polymerization degree. At the same time, the skeleton part of the floor is extruded with PVC highly filled with inorganic fillers. PVC has a certain crystallization ability. As the degree of polymerization increases, the arrangement of PVC molecular chains tends to be regular and the crystallinity increases. Crystallization serves as the physical crosslinking point of plasticized PVC, which increases the van der Waals force between PVC molecules and the hydrogen bonding force within the molecules. Under the action of external force, hydrogen bonds can separate and absorb external energy, thereby improving the ability of high-wear-resistant floor to resist mechanical action, thereby improving wear resistance.

[0013] The maleimide ester polysiloxane of the present invention is a dynamic covalent bond self-healing system constructed through a thiol-maleimide click chemistry reaction. The dynamic thiol-maleimide bond provides dynamic performance for high wear-resistant flooring, including ductility and thermal processability, through the network topology rearrangement produced by the imine exchange reaction at high temperature. In addition, the polysiloxane has a relatively long chain and can effectively regulate the flexibility of the material as a flexible touch regulator. The imidoester polysiloxane contains an ester group and has good compatibility with flexible acrylic resins and polyester elastomers, making it have better toughness. The floor material of the present invention has good wear resistance, high flexibility, and self-healing function, which is conducive to extending service life and reducing maintenance costs.

[0014] This invention develops an innovative material system suitable for flooring manufacturing that combines high wear resistance and self-healing properties. Its core strategy lies in the design and synthesis of a novel maleimide-ester polysiloxane containing dynamic bonds as a key functional component, cleverly combining the advantages of maleimide groups (which can participate in dynamic reactions) and polysiloxane segments (which offer excellent flexibility and weather resistance). By scientifically compounding this material with raw materials such as flexible acrylic resin, polyester elastomer, polyvinyl chloride, and slag (as a reinforcing filler), a composite material with controllable microstructure was constructed. This design is expected to effectively balance the relationship between wear resistance, flexibility, rigidity, and dynamic reversibility, thereby breaking through existing technological bottlenecks and achieving a synergistic improvement in flooring materials' high wear resistance and practical self-healing capabilities, meeting the urgent needs of the high-end and high-durability flooring market. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] The flexible acrylic resin is Dow Chemical 21308-XP. The polyester elastomer is Celanese 5526, the self-crosslinking coagent is BASF ADR4468, and the polyvinyl chloride is Star PSM-31.

[0017] Example 1: A process for preparing a highly wear-resistant floor, comprising the following steps: Step (1), add 80g of octamethylcyclotetrasiloxane, 173g of mercaptopropyl (dimethoxy)methylsilane, 3.1g of hexamethyldisiloxane, 34g of water, and 2.4g of trifluoromethanesulfonic acid into a flask, heat to 90°C, stir and react for 9h, dissolve the product in n-hexane, wash with water, and dry to obtain mercaptopolysiloxane; Step (2), add 6.2mmol of maleic anhydride and 800mL of toluene to a flask, stir and add 3mmol of p-aminophenyl para-aminobenzoate, react at 20°C for 2h, then add 0.75mmol of p-toluenesulfonic acid, heat to 110°C, reflux for 5h, remove the solvent by distillation under reduced pressure, and dry to obtain N,N'-4,4-phenylbenzoate bismaleimide; Step (3), heating 2.5 g of N, N'-4, 4-phenylbenzoate bismaleimide, 25 g of mercaptopolysiloxane, and 0.75 g of catalyst 1,8-diazabicycloundec-7-ene to 35°C and stirring for 1 hour to obtain maleimide ester polysiloxane; Step (4): 0.8 kg of flexible acrylic resin, 2 kg of polyester elastomer, 40 g of self-crosslinking auxiliary agent, 0.08 kg of maleimide ester polysiloxane, 11 g of MBX-40 and 8 g of antioxidant 1010 are mixed and extruded in a twin-screw extruder at temperatures of 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 4 kg of slag, 12 g of zinc stearate, 0.22 kg of lead salt stabilizer tribasic lead sulfate and 0.5 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder at temperatures of 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a high-wear-resistant floor.

[0018] Example 2: A process for preparing a highly wear-resistant floor, comprising the following steps: Step (1), add 84g of octamethylcyclotetrasiloxane, 70g of mercaptopropyl (dimethoxy)methylsilane, 4.2g of hexamethyldisiloxane, 15g of water, and 4.6g of trifluoromethanesulfonic acid into a flask, heat to 80°C, stir and react for 7h, dissolve the product in n-hexane, wash with water, and dry to obtain mercaptopolysiloxane; Step (2), add 6mmol of maleic anhydride and 700mL of toluene to a flask, stir and add 3mmol of p-aminophenyl para-aminobenzoate, react at 30°C for 2h, then add 0.84mmol of p-toluenesulfonic acid, heat to 120°C, reflux for 4h, remove the solvent by distillation under reduced pressure, and dry to obtain N,N'-4,4-phenylbenzoate bismaleimide; Step (3), heating 5g of N,N'-4,4-phenylbenzoate bismaleimide, 25g of mercaptopolysiloxane, and 0.82g of catalyst 1,8-diazabicycloundec-7-ene to 25°C and stirring for 2h to obtain maleimide ester polysiloxane; Step (4): 1.2 kg of flexible acrylic resin, 1.6 kg of polyester elastomer, 36 g of self-crosslinking auxiliary agent, 0.16 kg of maleimide ester polysiloxane, 26 g of MBX-60 and 10 g of antioxidant 1010 are mixed and extruded in a twin-screw extruder at temperatures of 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 4.4 kg of slag, 8 g of stearic acid, 0.2 kg of lead salt stabilizer dibasic lead sulfate and 0.7 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder at temperatures of 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a high wear-resistant floor.

[0019] Example 3: A process for preparing a highly wear-resistant floor, comprising the following steps: Step (1), adding 88g of octamethylcyclotetrasiloxane, 276g of mercaptopropyl (dimethoxy)methylsilane, 1.7g of hexamethyldisiloxane, 58g of water, and 1.5g of trifluoromethanesulfonic acid to a flask, heating to 80°C, stirring and reacting for 10h, dissolving the product in n-hexane, washing with water, and drying to obtain mercaptopolysiloxane; Step (2), add 6.4mmol of maleic anhydride and 900mL of toluene to a flask, stir and add 3mmol of p-aminophenyl para-aminobenzoate, react at 20°C for 3h, then add 1.02mmol of p-toluenesulfonic acid, heat to 120°C, reflux for 6h, remove the solvent by distillation under reduced pressure, and dry to obtain N,N'-4,4-phenylbenzoate bismaleimide; Step (3), heating 7.5g of N,N'-4,4-phenylbenzoate bismaleimide, 25g of mercaptopolysiloxane, and 0.94g of catalyst 1,8-diazabicycloundec-7-ene to 20°C and stirring for 2h to obtain maleimide ester polysiloxane; Step (4): 2 kg of flexible acrylic resin, 0.8 kg of polyester elastomer, 47 g of self-crosslinking auxiliary agent, 0.24 kg of maleimide ester polysiloxane, 41 g of MBX-5 and 12 g of antioxidant 264 are mixed and extruded in a twin-screw extruder at temperatures of 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 4.6 kg of slag, 16 g of calcium stearate, 0.32 kg of lead salt stabilizer tribasic lead sulfate and 0.8 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder at temperatures of 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a high wear-resistant floor.

[0020] Example 4: A process for preparing a highly wear-resistant floor, comprising the following steps: Step (1), adding 92g of octamethylcyclotetrasiloxane, 122g of mercaptopropyl (dimethoxy)methylsilane, 2.4g of hexamethyldisiloxane, 27g of water, and 3.5g of trifluoromethanesulfonic acid to a flask, heating to 90°C, stirring and reacting for 7h, dissolving the product in n-hexane, washing with water, and drying to obtain mercaptopolysiloxane; Step (2), add 6.6mmol of maleic anhydride and 900mL of toluene to a flask, stir and add 3mmol of p-aminophenyl para-aminobenzoate, react at 30°C for 3h, then add 1.02mmol of p-toluenesulfonic acid, heat to 110°C, reflux for 5h, remove the solvent by distillation under reduced pressure, and dry to obtain N,N'-4,4-phenylbenzoate bismaleimide; Step (3), heating 10g of N,N'-4,4-phenylbenzoate bismaleimide, 25g of mercaptopolysiloxane, and 1.25g of catalyst 1,8-diazabicycloundec-7-ene to 20°C and stirring for 1h to obtain maleimide ester polysiloxane; Step (4): 1.6 kg of flexible acrylic resin, 1.2 kg of polyester elastomer, 42 g of self-crosslinking auxiliary agent, 0.32 kg of maleimide ester polysiloxane, 56 g of MBX-60 and 12 g of antioxidant 264 are mixed and extruded in a twin-screw extruder at temperatures of 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 5 kg of slag, 14 g of stearic acid, 0.28 kg of lead salt stabilizer tribasic lead sulfate and 0.6 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder at temperatures of 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a high-wear-resistant floor.

[0021] Comparative Example 1: The difference from Example 1 is that no maleimide ester polysiloxane is added.

[0022] Step (1): 0.8 kg of flexible acrylic resin, 2 kg of polyester elastomer, 40 g of self-crosslinking auxiliary agent, 11 g of MBX-40 and 8 g of antioxidant 1010 are mixed and extruded in a twin-screw extruder, wherein the temperature of each section of the twin-screw extruder is 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 4 kg of slag, 12 g of zinc stearate, 0.22 kg of lead salt stabilizer tribasic lead sulfate and 0.5 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder, wherein the temperature of each section of the twin-screw extruder is 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a floor material.

[0023] Comparative Example 2: The difference from Example 1 is that mercaptopolysiloxane replaces maleimide ester polysiloxane.

[0024] Step (1): 0.8 kg of flexible acrylic resin, 2 kg of polyester elastomer, 40 g of self-crosslinking auxiliary agent, 0.08 kg of mercaptopolysiloxane, 11 g of MBX-40 and 8 g of antioxidant 1010 are mixed and extruded in a twin-screw extruder at temperatures of 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 4 kg of slag, 12 g of zinc stearate, 0.22 kg of lead salt stabilizer tribasic lead sulfate and 0.5 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder at temperatures of 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a floor material.

[0025] Comparative Example 3: The difference from Example 1 is that N,N'-(4,4'-methylenediphenyl)bismaleimide (CAS No. 13676-54-5) is used instead of N,N'-4,4-phenylbenzoate bismaleimide to synthesize maleimide ester polysiloxane.

[0026] Step (1): 2.5 g of N, N'-(4,4'-methylenediphenyl) bismaleimide, 25 g of mercaptopolysiloxane, and 0.75 g of catalyst 1,8-diazabicycloundec-7-ene were heated to 35°C and stirred for reaction for 1 hour to obtain maleimide polysiloxane.

[0027] Step (2): 0.8 kg of flexible acrylic resin, 2 kg of polyester elastomer, 40 g of self-crosslinking auxiliary agent, 0.08 kg of maleimide polysiloxane, 11 g of MBX-40 and 8 g of antioxidant 1010 are mixed and extruded in a twin-screw extruder at temperatures of 100° C., 140° C., 160° C., 180° C. and 160° C., and granulated to obtain a polyester blend; the polyester blend, 8 kg of polyvinyl chloride, 4 kg of slag, 12 g of zinc stearate, 0.22 kg of lead salt stabilizer tribasic lead sulfate and 0.5 kg of dioctyl phthalate are mixed and extruded in a twin-screw extruder at temperatures of 110° C., 130° C., 160° C., 180° C. and 180° C., and after extrusion, the mixture is shaped by a mold and cooled to obtain a floor material.

[0028] Floor material specimens were prepared according to the method of GB / T 3960-2016 and their wear resistance was tested.

[0029] Prepare specimens of high floor materials according to the method of GB / T 1040.1-2018, and test their tensile strength.

[0030] Samples of floor materials were prepared according to the method of GB / T 1043.1-2008 and their impact strength was tested.

[0031] High-wear-resistant flooring specimens were prepared according to the method specified in GB / T 9341-2008 and their flexural strength was tested. A stress-controlled DSR self-healing test was conducted at a temperature of 20°C, a loading frequency of 10 Hz, and a fatigue stress of 0.5 MPa. After the initial complex shear modulus dropped to 60% of fatigue damage, loading was stopped for 30 minutes. The test was then repeated 50 times before the flexural strength test was repeated.

[0032] Table 1: Performance test results of high wear-resistant floors prepared in various embodiments and comparative examples

[0033] According to the data in Table 1, the wear loss of the high-wear-resistant floors prepared in Examples 1 to 4 is 21.1-32.0 mg. As the amount of flexible acrylic resin and maleimide ester polysiloxane changes, the degree of entanglement of the molecular chains increases, and the degree of cross-linking increases, thereby providing wear resistance.

[0034] The high wear-resistant flooring prepared in Example 1 to Example 4 has a bending strength of 60.9-82.1 MPa and an impact strength of 14.2-25.4 kJ·m -2, the bending strength and impact strength are higher than those of Comparative Example 1-Comparative Example 3. After 50 times of fatigue damage, the bending strength of the high wear-resistant floor of Example 1-Example 4 can still be maintained at 53.2-73.6Mpa, with a high retention rate, while the bending strength of Comparative Example 1-Comparative Example 3 has a large decrease, indicating that Example 1-Example 4 has good self-healing properties. This is because the added maleimide ester polysiloxane is synthesized by a thiol-maleimide click chemistry reaction to construct a dynamic covalent bond self-healing system. The network topology rearrangement produced by the dynamic thiol-maleimide bond through the imine exchange reaction at high temperature provides dynamic performance and self-healing properties for the high wear-resistant floor.

[0035] The tensile strength of the high-wear-resistant flooring prepared in Examples 1-4 ranged from 32.9 to 51.6 MPa. The addition of maleimide-ester polysiloxane significantly altered the tensile strength, primarily due to the presence of a large number of long chains, which increased the flexibility of the system and subsequently decreased the tensile strength. Furthermore, the ester groups in the maleimide-ester polysiloxane added in Examples 1-4 provide good compatibility with flexible acrylic resins and polyester elastomers, contributing to their improved toughness.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A process for preparing a high wear-resistant floor, characterized in that: The steps include: Step (1), stirring and reacting N,N'-4,4-phenylbenzoate bismaleimide, mercaptopolysiloxane, and catalyst 1,8-diazabicycloundec-7-ene to obtain maleimide ester polysiloxane; Step (2): mixing a flexible acrylic resin, a polyester elastomer, a self-crosslinking auxiliary agent, a maleimide ester polysiloxane, a low-gloss component, and an antioxidant, extruding the mixture in a twin-screw extruder at a temperature of 100-180° C. in each section, and granulating the mixture to obtain a polyester blend; then mixing the polyester blend, polyvinyl chloride, slag, a lubricant, a stabilizer, and a plasticizer, extruding the mixture in a twin-screw extruder at a temperature of 110-180° C. in each section, shaping the mixture through a mold after extrusion, and cooling the mixture to obtain a high-wear-resistant floor.

2. The preparation process of the high wear-resistant floor according to claim 1, characterized in that: The mass ratio of the N,N'-4,4-phenylbenzoate bismaleimide, mercaptopolysiloxane and catalyst 1,8-diazabicycloundec-7-ene is (10-40):100:(3-5).

3. The preparation process of the high wear-resistant floor according to claim 1, characterized in that: In the step (1), the reaction temperature is 20-35° C., and the reaction time is 1-2 h.

4. The preparation process of the high wear-resistant floor according to claim 1, characterized in that: In the step (2), the mass ratio of the flexible acrylic resin, polyester elastomer, maleimide ester polysiloxane, polyvinyl chloride, and slag is (10-25): (10-25): (1-4): (100): (50-60).

5. The process for preparing the high wear-resistant floor according to claim 1, characterized in that: The low gloss component is MBX-40, MBX-5 or MBX-60; the antioxidant is antioxidant 1010 or antioxidant 264; the lubricant is stearic acid, calcium stearate or zinc stearate; the stabilizer is a lead salt stabilizer; and the plasticizer is dioctyl phthalate.

6. The process for preparing the high wear-resistant floor according to claim 2, characterized in that: The preparation method of the mercaptopolysiloxane comprises the following steps: adding octamethylcyclotetrasiloxane, mercaptopropyl (dimethoxy)methylsilane, hexamethyldisiloxane, water, and trifluoromethanesulfonic acid into a flask, heating to 80-90° C., stirring and reacting for 7-10 hours, dissolving the product in n-hexane, washing with water, and drying to obtain the mercaptopolysiloxane.

7. The process for preparing a high wear-resistant floor according to claim 6, characterized in that: The mass ratio of octamethylcyclotetrasiloxane, mercaptopropyl (dimethoxy)methylsilane, hexamethyldisiloxane, water and trifluoromethanesulfonic acid is (80-92): (70-276): (1.7-4.2): (15-58): (1.5-4.6).

8. The process for preparing a high wear-resistant floor according to claim 2, characterized in that: The preparation method of N,N'-4,4-phenylbenzoate bismaleimide comprises the following steps: adding maleic anhydride and toluene into a flask, stirring, adding p-aminophenyl para-aminobenzoate, reacting at 20-30°C for 2-3h, then adding p-toluenesulfonic acid, heating to 110-120°C, reflux reaction for 4-6h, removing the solvent by distillation under reduced pressure, and drying to obtain N,N'-4,4-phenylbenzoate bismaleimide.

9. The process for preparing a high wear-resistant floor according to claim 8, characterized in that: The molar ratio of p-aminophenyl p-aminobenzoate, maleic anhydride and p-toluenesulfonic acid is 1:(2-2.2):(0.25-0.34).

10. A highly wear-resistant floor obtained by the preparation process according to any one of claims 1 to 9.

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