Waterborne polyurethane floor material

Abstract

The invention discloses a waterborne polyurethane floor material which comprises the following raw materials in parts by weight: a waterborne polyurethane body, a graphene-doped modifier and a modified kaolin agent, wherein the substance mass ratio of the waterborne polyurethane body to the graphene-doped modifier to the modified kaolin agent is (9-11): 3: 2; wherein the waterborne polyurethane body is prepared by the prior art in CN102516918B (China Number 102516918B). According to the water-based material, a water-based polyurethane body is matched with a graphene-doped modifier and a modified kaolin agent to be blended and matched, the graphene-doped modifier is blended with graphene through a silane solution, the interface property of the graphene is optimized, sodium dodecyl benzene sulfonate, a lanthanum sulfate aqueous solution and carboxymethyl cellulose are blended and blended, and the graphene-doped modifier is prepared. The raw materials are matched and coordinated.

Description

Technical Field

[0001] The present invention relates to the technical field of floor materials, and in particular to a waterborne polyurethane floor material. Background Art

[0002] Since the molecular chain of polyurethane is a block copolymer combining flexible segments and rigid segments, it has excellent strength, hardness and flexibility. Existing polyurethane floor materials have poor impact resistance, low elongation at break and poor yellowing resistance, which limits the efficiency of the product. Summary of the Invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide a water-based polyurethane floor material to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions: The present invention provides a water-based polyurethane floor material, comprising the following raw materials in parts by weight: a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent; wherein the mass ratio of the water-based polyurethane body, the graphene-doped modifier, and the modified kaolin agent is (9-11):3:2; wherein the water-based polyurethane body is made according to the prior art in CN102516918B.

[0005] Preferably, the preparation method of the graphene-doped modifier is: S1: Immerse the graphene in a sufficient amount of silane solution and stir thoroughly, then wash, filter and dry; the silane solution is a composite mixture of silane coupling agent KH560, ethanol and water in a weight ratio of 3:5:1; S2: 5-8 parts of the graphene product of S1, 2-4 parts of sodium dodecylbenzenesulfonate, 4-7 parts of lanthanum sulfate aqueous solution and 1-2 parts of carboxymethyl cellulose are stirred thoroughly to obtain a graphene modified solution; S3: fully blending 2-4 parts of boron nitride, 1-3 parts of wollastonite and 5-8 parts of urea solution to obtain a polyadjusted solution; The reconstitution liquid and the graphene modification liquid were mixed and stirred thoroughly in a weight ratio of 5:3, and then filtered and dried to obtain a graphene-doped modifier.

[0006] Preferably, the mass fraction of the lanthanum sulfate aqueous solution is 2-5%; the mass fraction of the urea solution is 4-7%.

[0007] Preferably, the stirring speed for thorough mixing is 650-750 r / min, and the stirring is performed for 2 h.

[0008] Preferably, the preparation method of the modified kaolin agent is: S11: heat-treating kaolin at 60-65° C. for 10-15 minutes to obtain heat-treated kaolin; S12: ultrasonically treating the heat-treated kaolin and carbon nanotube solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a modified kaolin agent.

[0009] Preferably, the ultrasonic treatment is performed at an ultrasonic power of 350-400W for 1 hour.

[0010] Preferably, the preparation method of the carbon nanotube liquid is: The carbon nanotubes are thoroughly mixed in a sufficient amount of 5% by mass hydrochloric acid solution, then washed with water, filtered, and dried. 5-8 parts of dried carbon nanotubes, 3-5 parts of silicon carbide, 2-4 parts of yttrium nitrate solution, and 3-5 parts of sodium alginate solution are blended and stirred to obtain a carbon nanotube liquid.

[0011] Preferably, the mass fraction of the yttrium nitrate solution is 2-5%; the mass fraction of the sodium alginate solution is 4-7%.

[0012] A preparation method of a waterborne polyurethane floor material comprises the following steps: fully blending a waterborne polyurethane body, a graphene-doped modifier and a modified kaolin agent to obtain a waterborne polyurethane floor material.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The water-based polyurethane floor material of the present invention adopts a water-based polyurethane body, a graphene-doped modifier and a modified kaolin agent for blending and co-blending. The graphene-doped modifier is blended with graphene through a silane liquid to optimize the graphene interface. Sodium dodecylbenzenesulfonate, a lanthanum sulfate aqueous solution and carboxymethyl cellulose are blended and blended. Through the coordination between the raw materials, the sodium dodecylbenzenesulfonate, the lanthanum sulfate aqueous solution and the carboxymethyl cellulose in the compounding liquid are synergistically blended, so that the compounding liquid and the graphene modified liquid are synergistically blended, and thus the performance of the product is further improved. The modified kaolin agent adopts kaolin that is preheated and then blended and co-blended with a carbon nanotube liquid. The carbon nanotubes, silicon carbide, yttrium nitrate solution and sodium alginate solution in the carbon nanotube liquid are synergistically blended. The carbon nanotubes are combined with the kaolin raw materials to form a coordinated matching system, and thus the performance of the product is further improved. DETAILED DESCRIPTION

[0014] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] A water-based polyurethane floor material of this embodiment includes the following raw materials in parts by weight: a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent; wherein the mass ratio of the water-based polyurethane body, the graphene-doped modifier, and the modified kaolin agent is (9-11):3:2; wherein the water-based polyurethane body is made according to the prior art in CN102516918B.

[0016] The preparation method of the graphene-doped modifier of this embodiment is as follows: S1: Immerse the graphene in a sufficient amount of silane solution and stir thoroughly, then wash, filter and dry; the silane solution is a composite mixture of silane coupling agent KH560, ethanol and water in a weight ratio of 3:5:1; S2: 5-8 parts of the graphene product of S1, 2-4 parts of sodium dodecylbenzenesulfonate, 4-7 parts of lanthanum sulfate aqueous solution and 1-2 parts of carboxymethyl cellulose are stirred thoroughly to obtain a graphene modified solution; S3: fully blending 2-4 parts of boron nitride, 1-3 parts of wollastonite and 5-8 parts of urea solution to obtain a polyadjusted solution; The reconstitution liquid and the graphene modification liquid were mixed and stirred thoroughly in a weight ratio of 5:3, and then filtered and dried to obtain a graphene-doped modifier.

[0017] The mass fraction of the lanthanum sulfate aqueous solution in this embodiment is 2-5%; the mass fraction of the urea solution is 4-7%.

[0018] The stirring speed for thorough mixing in this embodiment is 650-750 r / min, and the stirring is carried out for 2 hours.

[0019] The preparation method of the modified kaolin agent of this embodiment is: S11: heat-treating kaolin at 60-65° C. for 10-15 minutes to obtain heat-treated kaolin; S12: ultrasonically treating the heat-treated kaolin and carbon nanotube solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a modified kaolin agent.

[0020] The ultrasonic treatment in this embodiment has an ultrasonic power of 350-400 W and is carried out for 1 hour.

[0021] The preparation method of the carbon nanotube liquid of this embodiment is: The carbon nanotubes are thoroughly mixed in a sufficient amount of 5% by mass hydrochloric acid solution, then washed with water, filtered, and dried. 5-8 parts of dried carbon nanotubes, 3-5 parts of silicon carbide, 2-4 parts of yttrium nitrate solution, and 3-5 parts of sodium alginate solution are blended and stirred to obtain a carbon nanotube liquid.

[0022] The mass fraction of the yttrium nitrate solution in this embodiment is 2-5%; the mass fraction of the sodium alginate solution is 4-7%.

[0023] The preparation method of a water-based polyurethane floor material of this embodiment includes the following steps: fully blending a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent to obtain a water-based polyurethane floor material.

[0024] Example 1. A water-based polyurethane floor material of this embodiment includes the following raw materials in parts by weight: a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent; wherein the mass ratio of the water-based polyurethane body, the graphene-doped modifier, and the modified kaolin agent is 9:3:2; wherein the water-based polyurethane body is made according to the prior art in CN102516918B.

[0025] The preparation method of a modifier for doped graphene in this embodiment is as follows: S1: Immerse the graphene in a sufficient amount of silane solution and stir thoroughly, then wash, filter and dry; the silane solution is a composite mixture of silane coupling agent KH560, ethanol and water in a weight ratio of 3:5:1; S2: 5 parts of the graphene product of S1, 2 parts of sodium dodecylbenzenesulfonate, 4 parts of lanthanum sulfate aqueous solution and 1 part of carboxymethyl cellulose are stirred thoroughly to obtain a graphene modified solution; S3: Blend 2 parts of boron nitride, 1 part of wollastonite and 5 parts of urea solution to obtain a polyadjusted solution; The reconstitution liquid and the graphene modification liquid were mixed and stirred thoroughly in a weight ratio of 5:3, and then filtered and dried to obtain a graphene-doped modifier.

[0026] The mass fraction of the lanthanum sulfate aqueous solution in this embodiment is 2%; the mass fraction of the urea solution is 4%.

[0027] The stirring speed for thorough mixing in this embodiment is 650 r / min, and the stirring is carried out for 2 h.

[0028] The preparation method of the modified kaolin agent of this embodiment is: S11: heat-treating kaolin at 60° C. for 10 min to obtain heat-treated kaolin; S12: ultrasonically treating the heat-treated kaolin and carbon nanotube solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a modified kaolin agent.

[0029] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 350 W and for 1 hour.

[0030] The preparation method of the carbon nanotube liquid of this embodiment is: The carbon nanotubes were mixed thoroughly in a sufficient amount of 5% by mass hydrochloric acid solution, then washed with water, filtered, and dried. 5 parts of dried carbon nanotubes, 3 parts of silicon carbide, 2 parts of yttrium nitrate solution, and 3 parts of sodium alginate solution were blended and stirred thoroughly to obtain a carbon nanotube liquid.

[0031] The mass fraction of the yttrium nitrate solution in this embodiment is 2%; the mass fraction of the sodium alginate solution is 4%.

[0032] The preparation method of a water-based polyurethane floor material of this embodiment includes the following steps: fully blending a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent to obtain a water-based polyurethane floor material.

[0033] Example 2. A water-based polyurethane floor material of this embodiment includes the following raw materials in parts by weight: a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent; wherein the mass ratio of the water-based polyurethane body, the graphene-doped modifier, and the modified kaolin agent is 11:3:2; wherein the water-based polyurethane body is made according to the prior art in CN102516918B.

[0034] The preparation method of the graphene-doped modifier of this embodiment is as follows: S1: Immerse the graphene in a sufficient amount of silane solution and stir thoroughly, then wash, filter and dry; the silane solution is a composite mixture of silane coupling agent KH560, ethanol and water in a weight ratio of 3:5:1; S2: 8 parts of the graphene product of S1, 4 parts of sodium dodecylbenzenesulfonate, 7 parts of lanthanum sulfate aqueous solution and 2 parts of carboxymethyl cellulose are stirred thoroughly to obtain a graphene modified solution; S3: 4 parts of boron nitride, 3 parts of wollastonite and 8 parts of urea solution are fully mixed to obtain a polyadjusted solution; The reconstitution liquid and the graphene modification liquid were mixed and stirred thoroughly in a weight ratio of 5:3, and then filtered and dried to obtain a graphene-doped modifier.

[0035] The mass fraction of the lanthanum sulfate aqueous solution in this embodiment is 5%; the mass fraction of the urea solution is 7%.

[0036] The stirring speed for thorough mixing in this embodiment is 750 r / min, and the stirring is carried out for 2 h.

[0037] The preparation method of the modified kaolin agent of this embodiment is: S11: heat-treating kaolin at 65° C. for 15 minutes to obtain heat-treated kaolin; S12: ultrasonically treating the heat-treated kaolin and carbon nanotube solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a modified kaolin agent.

[0038] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 400 W and ultrasonic treatment for 1 hour.

[0039] The preparation method of the carbon nanotube liquid of this embodiment is: The carbon nanotubes were mixed thoroughly in a sufficient amount of 5% by mass hydrochloric acid solution, then washed with water, filtered, and dried. 8 parts of dried carbon nanotubes, 5 parts of silicon carbide, 4 parts of yttrium nitrate solution, and 5 parts of sodium alginate solution were blended and stirred thoroughly to obtain a carbon nanotube liquid.

[0040] The mass fraction of the yttrium nitrate solution in this embodiment is 5%; the mass fraction of the sodium alginate solution is 7%.

[0041] The preparation method of a water-based polyurethane floor material of this embodiment includes the following steps: fully blending a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent to obtain a water-based polyurethane floor material.

[0042] Example 3. A water-based polyurethane floor material of this embodiment includes the following raw materials in parts by weight: a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent; wherein the mass ratio of the water-based polyurethane body, the graphene-doped modifier, and the modified kaolin agent is 10:3:2; wherein the water-based polyurethane body is made according to the prior art in CN102516918B.

[0043] The preparation method of the graphene-doped modifier of this embodiment is as follows: S1: Immerse the graphene in a sufficient amount of silane solution and stir thoroughly, then wash, filter and dry; the silane solution is a composite mixture of silane coupling agent KH560, ethanol and water in a weight ratio of 3:5:1; S2: 6.5 parts of the graphene product of S1, 3 parts of sodium dodecylbenzenesulfonate, 5.5 parts of lanthanum sulfate aqueous solution and 1.5 parts of carboxymethyl cellulose were stirred thoroughly to obtain a graphene modified solution; S3: 3 parts of boron nitride, 2 parts of wollastonite and 6.5 parts of urea solution are thoroughly mixed to obtain a polyadjusted solution; The reconstitution liquid and the graphene modification liquid were mixed and stirred thoroughly in a weight ratio of 5:3, and then filtered and dried to obtain a graphene-doped modifier.

[0044] The mass fraction of the lanthanum sulfate aqueous solution in this embodiment is 3.5%; the mass fraction of the urea solution is 5.5%.

[0045] The stirring speed for thorough mixing in this embodiment is 700 r / min, and the stirring is carried out for 2 h.

[0046] The preparation method of the modified kaolin agent of this embodiment is: S11: heat-treating kaolin at 62.5° C. for 12.5 min to obtain heat-treated kaolin; S12: ultrasonically treating the heat-treated kaolin and carbon nanotube solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a modified kaolin agent.

[0047] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 75 W and for 1 h.

[0048] The preparation method of the carbon nanotube liquid of this embodiment is: The carbon nanotubes were mixed thoroughly in a sufficient amount of 5% by mass hydrochloric acid solution, then washed with water, filtered, and dried. 6.5 parts of dried carbon nanotubes, 4 parts of silicon carbide, 3 parts of yttrium nitrate solution, and 4 parts of sodium alginate solution were blended and stirred thoroughly to obtain a carbon nanotube liquid.

[0049] The mass fraction of the yttrium nitrate solution in this embodiment is 3.5%; the mass fraction of the sodium alginate solution is 5.5%.

[0050] The preparation method of a water-based polyurethane floor material of this embodiment includes the following steps: fully blending a water-based polyurethane body, a graphene-doped modifier, and a modified kaolin agent to obtain a water-based polyurethane floor material.

[0051] Comparative Example 1. The difference from Example 3 is that no modifier for doping graphene is added.

[0052] Comparative Example 2. The difference from Example 3 is that no counterbalancing liquid is added in the preparation of the graphene-doped modifier.

[0053] Comparative Example 3. The difference from Example 3 is that the graphene product of S1 is not added in the preparation of the modifier for doped graphene.

[0054] Comparative Example 4. The difference from Example 3 is that no modified kaolin agent is added.

[0055] Comparative Example 5. The difference from Example 3 is that no carbon nanotube liquid is added in the preparation of the modified kaolin agent.

[0056] Comparative Example 6. The difference from Example 3 is that silicon carbide and yttrium nitrate solution are not added to the carbon nanotube solution.

[0057] The product performance tests of Examples 1-3 and Comparative Examples 1-6 are as follows:

[0058] It can be seen from Comparative Examples 1-6 and Example 3 that the product of Example 3 has excellent impact resistance, yellowing resistance and elongation at break, and the product can achieve coordinated improvement. No graphene-doped modifier or one of the modified kaolin agents is added to the product, and the performance of the product has a significant deterioration trend. In addition, no retuning liquid is added in the preparation of the graphene-doped modifier, no S1 graphene product is added in the preparation of the graphene-doped modifier, no carbon nanotube liquid is added in the preparation of the modified kaolin agent, and no silicon carbide and yttrium nitrate solution are added to the carbon nanotube liquid. The performance of the product has a deterioration trend. Only the product raw material obtained by the method of the present invention has the most significant product performance effect.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0060] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A waterborne polyurethane floor material, characterized in that: The invention comprises the following raw materials in parts by weight: a water-based polyurethane body, a graphene-doped modifier and a modified kaolin agent; wherein the mass ratio of the water-based polyurethane body, the graphene-doped modifier and the modified kaolin agent is (9-11):3:2; wherein the water-based polyurethane body is made according to the prior art in CN102516918B.

2. A waterborne polyurethane floor material according to claim 1, characterized in that: The preparation method of the graphene-doped modifier is as follows: S1: Immerse the graphene in a sufficient amount of silane solution and stir thoroughly, then wash, filter and dry; the silane solution is a composite mixture of silane coupling agent KH560, ethanol and water in a weight ratio of 3:5:1; S2: 5-8 parts of the graphene product of S1, 2-4 parts of sodium dodecylbenzenesulfonate, 4-7 parts of lanthanum sulfate aqueous solution and 1-2 parts of carboxymethyl cellulose are stirred thoroughly to obtain a graphene modified solution; S3: fully blending 2-4 parts of boron nitride, 1-3 parts of wollastonite and 5-8 parts of urea solution to obtain a polyadjusted solution; The reconstitution liquid and the graphene modification liquid were mixed and stirred thoroughly in a weight ratio of 5:3, and then filtered and dried to obtain a graphene-doped modifier.

3. A waterborne polyurethane floor material according to claim 2, characterized in that: The mass fraction of the lanthanum sulfate aqueous solution is 2-5%; the mass fraction of the urea solution is 4-7%.

4. A waterborne polyurethane floor material according to claim 2, characterized in that: The stirring speed for thorough mixing is 650-750 r / min, and the stirring is carried out for 2 h.

5. The waterborne polyurethane floor material according to claim 1, characterized in that: The preparation method of the modified kaolin agent is: S11: heat-treating kaolin at 60-65° C. for 10-15 minutes to obtain heat-treated kaolin; S12: ultrasonically treating the heat-treated kaolin and carbon nanotube solution in a weight ratio of 2:

5. After the ultrasonic treatment is completed, the mixture is filtered and dried to obtain a modified kaolin agent.

6. A waterborne polyurethane floor material according to claim 5, characterized in that: The ultrasonic treatment was performed at an ultrasonic power of 350-400W for 1 hour.

7. The waterborne polyurethane floor material according to claim 5, characterized in that: The preparation method of the carbon nanotube liquid is: The carbon nanotubes are thoroughly mixed in a sufficient amount of 5% by mass hydrochloric acid solution, then washed with water, filtered, and dried. 5-8 parts of dried carbon nanotubes, 3-5 parts of silicon carbide, 2-4 parts of yttrium nitrate solution, and 3-5 parts of sodium alginate solution are blended and stirred to obtain a carbon nanotube liquid.

8. A waterborne polyurethane floor material according to claim 7, characterized in that: The mass fraction of the yttrium nitrate solution is 2-5%; the mass fraction of the sodium alginate solution is 4-7%.

9. The method for preparing a waterborne polyurethane floor material according to any one of claims 1 to 8, characterized in that: The following steps are involved: A waterborne polyurethane body, a graphene-doped modifier and a modified kaolin agent are fully blended to obtain a waterborne polyurethane floor material.

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