Mildew-proof material, preparation method thereof and application thereof in preparing mildew-proof panel

Abstract

The present application discloses a kind of mildew-proof materials, the mildew-proof materials include mildew-proof agent, sheet-shaped graphene regulates hydroxyapatite agent and hybrid wollastonite agent;Wherein the mass ratio of mildew-proof agent, sheet-shaped graphene regulates hydroxyapatite agent and hybrid wollastonite agent is (7-9) :(3-5) :1.The mildew-proof material of the present application uses mildew-proof agent as base agent, by adding sheet-shaped graphene regulates hydroxyapatite agent and hybrid wollastonite agent, using both coordination, together with synergistic effect, applied in panel can play excellent mildew-proof performance, while the performance of mildew-proof performance under the condition of scraping, acid corrosion, excellent performance stability, the performance effect of product is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of anti-mildew panel material technology, specifically to an anti-mildew material, its preparation method, and its application in the preparation of anti-mildew panels. Background Technology

[0002] Wood veneer panels, also known as decorative veneer plywood, are surface materials used for interior decoration or furniture manufacturing. They are made by slicing natural wood or engineered wood into thin sheets of a certain thickness, adhering them to the surface of plywood, and then hot-pressing them. Common wood veneer panels are divided into natural wood veneer panels and artificial thin wood veneer panels. While anti-mold materials can achieve anti-mold effects, existing anti-mold materials are unstable. Under conditions of scratching and acid rot, their anti-mold stability decreases, limiting their anti-mold efficiency. Therefore, this invention provides further improvements. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the purpose of this invention is to provide an anti-mildew material, its preparation method, and its application in the preparation of anti-mildew panels, so as to solve the problems mentioned in the background art.

[0004] The present invention solves the technical problem by adopting the following technical solution: The present invention provides an anti-mildew material, which includes an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent; wherein the mass ratio of the anti-mildew agent, the sheet graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent is (7-9):(3-5):1.

[0005] The inventors of this invention discovered that without the addition of either sheet graphene-modified hydroxyapatite agent or hybrid wollastonite agent, the performance of the product is significantly reduced. By combining sheet graphene-modified hydroxyapatite agent and hybrid wollastonite agent, the product's performance can be optimized in a coordinated manner.

[0006] Preferably, the antifungal agent is 8-hydroxyquinoline copper.

[0007] Preferably, the preparation method of the sheet-like graphene-modified hydroxyapatite agent is as follows: The sheet-like graphene is heat-treated at 120-130℃ for 5-10 minutes, and then air-cooled to room temperature for later use. Add 2-5 parts of sodium dodecylbenzenesulfonate to 10-15 parts of yttrium nitrate solution, stir well, then add 1-2 parts of silane coupling agent KH560 and 0.2-0.4 parts of chitosan solution, stir thoroughly to obtain the modified solution; The prepared sheet graphene is added to a 3-5 times volume of the modification solution for primary stirring treatment. Then, 10-15% of the total amount of the prepared sheet graphene is added as hydroxyapatite agent for secondary stirring treatment. After stirring is completed, the sheet graphene is washed with water and dried to obtain the sheet graphene-modified hydroxyapatite agent.

[0008] Preferably, the yttrium nitrate solution has a mass fraction of 4-8%; the chitosan solution has a mass fraction of 3-5%.

[0009] Preferably, the primary stirring process has a rotation speed of 350-450 r / min and a stirring time of 20-30 min; the secondary stirring process has a rotation speed of 750-850 r / min and a stirring time of 10-20 min.

[0010] Preferably, the preparation method of the hydroxyapatite agent is as follows: Hydroxyapatite is added to a sodium citrate solution of 2-5 times its volume, and then a phosphate buffer solution with a pH of 5.0 is added at 1-3% of the total amount of hydroxyapatite. The mixture is stirred until homogeneous, and then stearic acid at 2-5% of the total amount of hydroxyapatite is added. The mixture is stirred thoroughly, washed with water, and dried to obtain the hydroxyapatite agent.

[0011] Preferably, the sodium citrate solution has a mass fraction of 10-15%.

[0012] Preferably, the preparation method of the hybrid wollastonite agent is as follows: Wollastonite is heated to 55-60℃ and then immersed in a 5% (w / w) lanthanum sulfate solution for immersion improvement treatment. The immersion pressure is 10-15 MPa and the immersion time is 20-30 min. After immersion, the mixture is filtered and dried to obtain a hybrid wollastonite agent.

[0013] The inventors of this invention also discovered that the performance of the product tends to deteriorate when sheet graphene is used to modify hydroxyapatite, or when different preparation methods are used for sheet graphene-modified hydroxyapatite agents. Furthermore, the performance of the product deteriorates when hydroxyapatite treatment is not used, deionized water is used instead of modified liquid, or wollastonite is used instead of hybrid wollastonite agent. Only the sheet graphene-modified hydroxyapatite agent and hybrid wollastonite agent prepared using the method of this invention synergistically enhance the product's anti-mildew stability.

[0014] A method for preparing an anti-mildew material includes the following steps: stirring and mixing an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent until homogeneous to obtain the anti-mildew material.

[0015] This invention also provides a method for preparing anti-mildew materials and its application in the preparation of anti-mildew panels.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The anti-mildew material of this invention uses an anti-mildew agent as the base agent. By adding sheet graphene to adjust the hydroxyapatite agent and the hybrid wollastonite agent, the two are coordinated and synergistically enhanced. When applied to panels, it can achieve excellent anti-mildew performance. At the same time, the anti-mildew performance is excellent and stable under scratch and acid corrosion conditions, and the performance of the product is significantly improved. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to specific examples. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This embodiment provides an anti-mildew material comprising an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent; wherein the mass ratio of the anti-mildew agent, the sheet graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent is (7-9):(3-5):1.

[0019] The antifungal agent in this embodiment is 8-hydroxyquinoline copper.

[0020] The preparation method of the sheet-like graphene-modified hydroxyapatite agent in this embodiment is as follows: The sheet-like graphene is heat-treated at 120-130℃ for 5-10 minutes, and then air-cooled to room temperature for later use. Add 2-5 parts of sodium dodecylbenzenesulfonate to 10-15 parts of yttrium nitrate solution, stir well, then add 1-2 parts of silane coupling agent KH560 and 0.2-0.4 parts of chitosan solution, stir thoroughly to obtain the modified solution; The prepared sheet graphene is added to a 3-5 times volume of the modification solution for primary stirring treatment. Then, 10-15% of the total amount of the prepared sheet graphene is added as hydroxyapatite agent for secondary stirring treatment. After stirring is completed, the sheet graphene is washed with water and dried to obtain the sheet graphene-modified hydroxyapatite agent.

[0021] In this embodiment, the yttrium nitrate solution has a mass fraction of 4-8%, and the chitosan solution has a mass fraction of 3-5%.

[0022] In this embodiment, the primary stirring speed is 350-450 r / min, and the stirring time is 20-30 min; the secondary stirring speed is 750-850 r / min, and the stirring time is 10-20 min.

[0023] The preparation method of the hydroxyapatite agent in this embodiment is as follows: Hydroxyapatite is added to a sodium citrate solution of 2-5 times its volume, and then a phosphate buffer solution with a pH of 5.0 is added at 1-3% of the total amount of hydroxyapatite. The mixture is stirred until homogeneous, and then stearic acid at 2-5% of the total amount of hydroxyapatite is added. The mixture is stirred thoroughly, washed with water, and dried to obtain the hydroxyapatite agent.

[0024] The sodium citrate solution in this embodiment has a mass fraction of 10-15%.

[0025] The preparation method of the hybrid wollastonite agent in this embodiment is as follows: Wollastonite is heated to 55-60℃ and then immersed in a 5% (w / w) lanthanum sulfate solution for immersion improvement treatment. The immersion pressure is 10-15 MPa and the immersion time is 20-30 min. After immersion, the mixture is filtered and dried to obtain a hybrid wollastonite agent.

[0026] The present embodiment of a method for preparing an anti-mildew material includes the following steps: stirring and mixing an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent evenly to obtain an anti-mildew material.

[0027] This embodiment describes the application of a method for preparing an anti-mildew material in the preparation of an anti-mildew panel.

[0028] Example 1 This embodiment provides an anti-mildew material comprising an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent; wherein the mass ratio of the anti-mildew agent, the sheet graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent is 7:3:1.

[0029] The antifungal agent in this embodiment is 8-hydroxyquinoline copper.

[0030] The preparation method of the sheet-like graphene-modified hydroxyapatite agent in this embodiment is as follows: The sheet-like graphene was heat-treated at 120°C for 5 minutes, and then air-cooled to room temperature for later use. Two parts of sodium dodecylbenzenesulfonate were added to ten parts of yttrium nitrate solution and stirred until homogeneous. Then, one part of silane coupling agent KH560 and 0.2 parts of chitosan solution were added and stirred thoroughly to obtain the modified solution. The prepared sheet graphene was added to a 3-fold volume of the modification solution for primary stirring. Then, 10% of the total amount of the prepared sheet graphene was added as hydroxyapatite agent, followed by secondary stirring. After stirring, the mixture was washed with water and dried to obtain the sheet graphene-modified hydroxyapatite agent.

[0031] In this embodiment, the yttrium nitrate solution has a mass fraction of 4%, and the chitosan solution has a mass fraction of 3%.

[0032] In this embodiment, the primary stirring speed is 350 r / min and the stirring time is 20 min; the secondary stirring speed is 750 r / min and the stirring time is 10 min.

[0033] The preparation method of the hydroxyapatite agent in this embodiment is as follows: Hydroxyapatite was added to a sodium citrate solution of 2 times its volume, and then 1% of the total amount of hydroxyapatite was added to a phosphate buffer solution with a pH of 5.0. The mixture was stirred until homogeneous, and then 2% of the total amount of hydroxyapatite was added to stearic acid. The mixture was stirred thoroughly, washed with water, and dried to obtain the hydroxyapatite agent.

[0034] The sodium citrate solution in this embodiment has a mass fraction of 10%.

[0035] The preparation method of the hybrid wollastonite agent in this embodiment is as follows: Wollastonite was heated to 55°C and then immersed in a 5% (w / w) lanthanum sulfate solution for immersion improvement treatment. The immersion pressure was 10 MPa and the immersion time was 20 min. After immersion, the mixture was filtered and dried to obtain a hybrid wollastonite agent.

[0036] The present embodiment of a method for preparing an anti-mildew material includes the following steps: stirring and mixing an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent evenly to obtain an anti-mildew material.

[0037] This embodiment describes the application of a method for preparing an anti-mildew material in the preparation of an anti-mildew panel.

[0038] Example 2 This embodiment provides an anti-mildew material comprising an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent; wherein the mass ratio of the anti-mildew agent, the sheet graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent is 9:5:1.

[0039] The antifungal agent in this embodiment is 8-hydroxyquinoline copper.

[0040] The preparation method of the sheet-like graphene-modified hydroxyapatite agent in this embodiment is as follows: The sheet-like graphene was heat-treated at 130°C for 10 minutes, and then air-cooled to room temperature for later use. Five parts of sodium dodecylbenzenesulfonate were added to 15 parts of yttrium nitrate solution and stirred until homogeneous. Then, two parts of silane coupling agent KH560 and 0.4 parts of chitosan solution were added and stirred thoroughly to obtain the modified solution. The prepared sheet graphene was added to a 5-fold volume of the modification solution for primary stirring. Then, 15% of the total amount of the prepared sheet graphene was added as hydroxyapatite agent, followed by secondary stirring. After stirring, the mixture was washed with water and dried to obtain the sheet graphene-modified hydroxyapatite agent.

[0041] In this embodiment, the yttrium nitrate solution has a mass fraction of 8%, and the chitosan solution has a mass fraction of 5%.

[0042] In this embodiment, the primary stirring speed is 450 r / min and the stirring time is 30 min; the secondary stirring speed is 850 r / min and the stirring time is 20 min.

[0043] The preparation method of the hydroxyapatite agent in this embodiment is as follows: Hydroxyapatite was added to a sodium citrate solution in a volume of 5, and then a phosphate buffer solution with a pH of 5.0 was added at 3% of the total amount of hydroxyapatite. The mixture was stirred until homogeneous, and then stearic acid at 5% of the total amount of hydroxyapatite was added. The mixture was stirred thoroughly, washed with water, and dried to obtain the hydroxyapatite agent.

[0044] The sodium citrate solution in this embodiment has a mass fraction of 15%.

[0045] The preparation method of the hybrid wollastonite agent in this embodiment is as follows: Wollastonite was heated to 60°C and then immersed in a 5% (w / w) lanthanum sulfate solution for immersion improvement treatment. The immersion pressure was 15 MPa and the immersion time was 30 min. After immersion, the mixture was filtered and dried to obtain a hybrid wollastonite agent.

[0046] The present embodiment of a method for preparing an anti-mildew material includes the following steps: stirring and mixing an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent evenly to obtain an anti-mildew material.

[0047] This embodiment describes the application of a method for preparing an anti-mildew material in the preparation of an anti-mildew panel.

[0048] Example 3 This embodiment provides an anti-mildew material comprising an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent; wherein the mass ratio of the anti-mildew agent, the sheet graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent is 8:4:1.

[0049] The antifungal agent in this embodiment is 8-hydroxyquinoline copper.

[0050] The preparation method of the sheet-like graphene-modified hydroxyapatite agent in this embodiment is as follows: The sheet graphene was heat-treated at 125°C for 7.5 minutes, and then air-cooled to room temperature for later use. 3.5 parts of sodium dodecylbenzenesulfonate were added to 12.5 parts of yttrium nitrate solution and stirred until homogeneous. Then, 1.5 parts of silane coupling agent KH560 and 0.3 parts of chitosan solution were added and stirred thoroughly to obtain the modified solution. The prepared sheet graphene was added to a 4-fold volume of the modification solution for primary stirring. Then, 12.5% ​​of the total amount of the prepared sheet graphene was added as hydroxyapatite agent, followed by secondary stirring. After stirring, the mixture was washed with water and dried to obtain the sheet graphene-modified hydroxyapatite agent.

[0051] In this embodiment, the yttrium nitrate solution has a mass fraction of 6%, and the chitosan solution has a mass fraction of 4%.

[0052] In this embodiment, the primary stirring speed is 400 r / min and the stirring time is 25 min; the secondary stirring speed is 800 r / min and the stirring time is 15 min.

[0053] The preparation method of the hydroxyapatite agent in this embodiment is as follows: Hydroxyapatite was added to a 3.5-fold sodium citrate solution, followed by the addition of a phosphate buffer solution with a pH of 5.0 (2% of the total hydroxyapatite content). The mixture was stirred until homogeneous, and then stearic acid (3.5% of the total hydroxyapatite content) was added. The mixture was stirred thoroughly, washed with water, and dried to obtain the hydroxyapatite agent.

[0054] The sodium citrate solution in this embodiment has a mass fraction of 12.5%.

[0055] The preparation method of the hybrid wollastonite agent in this embodiment is as follows: Wollastonite was heated to 57°C and then immersed in a 5% (w / w) lanthanum sulfate solution for immersion improvement treatment. The immersion pressure was 12.5 MPa and the immersion time was 25 min. After immersion, the mixture was filtered and dried to obtain a hybrid wollastonite agent.

[0056] The present embodiment of a method for preparing an anti-mildew material includes the following steps: stirring and mixing an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent evenly to obtain an anti-mildew material.

[0057] This embodiment describes the application of a method for preparing an anti-mildew material in the preparation of an anti-mildew panel.

[0058] Comparative Example 1. Unlike Example 3, no sheet graphene was added to adjust the hydroxyapatite agent.

[0059] Comparative Example 2. Unlike Example 3, sheet graphene is used instead of hydroxyapatite to regulate the hydroxyapatite agent.

[0060] Comparative Example 3. The difference from Example 3 is that the preparation method of the sheet graphene-modified hydroxyapatite agent is different; no hydroxyapatite agent treatment was used.

[0061] Comparative Example 4. The difference from Example 3 is that the preparation method of the sheet graphene-modified hydroxyapatite agent is different; deionized water is used instead of the modified solution.

[0062] Comparative Example 5. Unlike Example 3, no hybrid wollastonite agent was added.

[0063] Comparative Example 6. Unlike Example 3, the hybrid wollastonite agent is replaced with wollastonite.

[0064] Examples 1-3 and Comparative Examples 1-6 were mixed with existing board materials at a weight ratio of 1:10 to produce mildew-resistant boards. The performance measurement results are as follows.

[0065] Examples 1-3 and Comparative Examples 1-6 show that the product of the present invention has excellent Aspergillus niger inhibition rate, and its anti-mold stability is excellent after 100 scrapings and 12 hours of acid corrosion with 2% hydrochloric acid. Without the addition of either the sheet graphene-modified hydroxyapatite agent or the hybrid wollastonite agent, the performance of the product is significantly reduced. The sheet graphene-modified hydroxyapatite agent and the hybrid wollastonite agent work synergistically to enhance the product's performance, achieving a coordinated optimization. Meanwhile, it was found that the performance of the products tended to deteriorate when sheet graphene was used to modify hydroxyapatite, when sheet graphene was used instead of hydroxyapatite, when deionized water was used instead of hydroxyapatite, or when wollastonite was used instead of hydroxyapatite. Only the sheet graphene-modified hydroxyapatite and the hybrid wollastonite prepared by the method of this invention synergistically enhanced the antifungal stability of the products.

[0066] 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 implemented 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 exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mildew-resistant material, characterized in that, The anti-mildew material includes an anti-mildew agent, a sheet graphene-modified hydroxyapatite agent, and a hybrid wollastonite agent; wherein the mass ratio of the anti-mildew agent, the sheet graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent is (7-9):(3-5):1; The antifungal agent is 8-hydroxyquinoline copper; The preparation method of the sheet-like graphene-modified hydroxyapatite agent is as follows: The sheet-like graphene is heat-treated at 120-130℃ for 5-10 minutes, and then air-cooled to room temperature for later use. Add 2-5 parts of sodium dodecylbenzenesulfonate to 10-15 parts of yttrium nitrate solution, stir well, then add 1-2 parts of silane coupling agent KH560 and 0.2-0.4 parts of chitosan solution, stir thoroughly to obtain the modified solution; The prepared sheet graphene is added to 3-5 times the amount of the modification liquid for primary stirring treatment, and then 10-15% of the total amount of the prepared sheet graphene is added with hydroxyapatite agent for secondary stirring treatment. After stirring is completed, the sheet graphene is washed with water and dried to obtain sheet graphene modified with hydroxyapatite agent. The preparation method of the hydroxyapatite agent is as follows: Hydroxyapatite is added to 2-5 times the amount of sodium citrate solution, then 1-3% of the total amount of hydroxyapatite is added to a phosphate buffer solution with a pH of 5.0, and stirred evenly. Then 2-5% of the total amount of hydroxyapatite is added to stearic acid, stirred thoroughly, washed with water, and dried to obtain hydroxyapatite agent. The yttrium nitrate solution has a mass fraction of 4-8%; the chitosan solution has a mass fraction of 3-5%. The primary stirring process has a rotation speed of 350-450 r / min and a stirring time of 20-30 min; the secondary stirring process has a rotation speed of 750-850 r / min and a stirring time of 10-20 min. The sodium citrate solution has a mass fraction of 10-15%; The preparation method of the hybrid wollastonite agent is as follows: Wollastonite is heated to 55-60℃ and then immersed in a 5% (w / w) lanthanum sulfate solution for immersion improvement treatment. The immersion pressure is 10-15 MPa and the immersion time is 20-30 min. After immersion, the mixture is filtered and dried to obtain a hybrid wollastonite agent.

2. A method for preparing the anti-mildew material as described in claim 1, characterized in that, Includes the following steps: The antifungal agent, the flake graphene-modified hydroxyapatite agent, and the hybrid wollastonite agent are stirred and mixed evenly to obtain the antifungal material.

3. The application of the anti-mildew material as described in claim 1 in the preparation of an anti-mildew panel.

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