Polymer raised floor base material with fireproof effect and preparation method thereof

Abstract

The invention discloses a macromolecular raised floor base material with a fireproof effect. The macromolecular raised floor base material comprises the following raw materials in parts by weight: 20-30 parts of magnesium oxide, 10-20 parts of magnesium sulfate, 20-25 parts of epoxy resin, 5-8 parts of a glass fiber agent, 4-7 parts of polyurethane, 2-5 parts of polyvinyl alcohol and 2-5 parts of modified perlite. According to the high-molecular raised floor base material, magnesium oxide, magnesium sulfate, epoxy resin, polyurethane, polyvinyl alcohol and other raw materials are adopted, meanwhile, the glass fiber agent and the modified perlite are added to achieve a synergistic effect, the fireproof performance, the heat preservation performance and the strength performance of the obtained base material product are improved in a coordinated mode, and the corrosion-resistant stability effect of the product is remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of elevated floor substrates, and in particular to a polymer elevated floor substrate with fireproofing function and a preparation method thereof. Background Art

[0002] Magnesium oxysulfate board is a high-performance building material. Its main components include magnesium oxide (MgO), magnesium sulfate (MgSO4) and other auxiliary materials. Magnesium oxysulfate board is a high-performance building material composed of a variety of inorganic materials. It has multiple advantages such as fire resistance, waterproofness, high strength and environmental protection. It is suitable for various occasions that require high-performance fireproof materials.

[0003] In order to improve the fireproofing effect of the existing elevated floor substrate, the thermal insulation and strength performance are easily reduced. The fireproofing, thermal insulation and strength performance of the product are difficult to improve in a coordinated manner, and the corrosion resistance and stability of the product are poor, which limits the use efficiency of the product. Based on this, the present invention further improves it. Summary of the Invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a polymer raised floor substrate with fireproofing effect and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0005] The present invention solves the technical problem by adopting the following technical solutions: The present invention provides a polymer raised floor substrate with fireproofing effect, comprising the following raw materials in parts by weight: 20-30 parts of magnesium oxide, 10-20 parts of magnesium sulfate, 20-25 parts of epoxy resin, 5-8 parts of glass fiber agent, 4-7 parts of polyurethane, 2-5 parts of polyvinyl alcohol, and 2-5 parts of modified perlite.

[0006] Preferably, the polymer raised floor substrate comprises the following raw materials in parts by weight: 25 parts of magnesium oxide, 15 parts of magnesium sulfate, 22.5 parts of epoxy resin, 6.5 parts of glass fiber agent, 5.5 parts of polyurethane, 3.5 parts of polyvinyl alcohol, and 3.5 parts of modified perlite.

[0007] Preferably, the preparation method of the glass fiber agent is: S1: 3-5 parts of sodium dodecylbenzenesulfonate solution, 2-3 parts of boron nitride, 1-3 parts of calcium sulfate whiskers and 2-4 parts of sodium carboxymethyl cellulose are uniformly mixed to obtain a modified solution; The glass fiber is preheated at 55-60°C for 1 hour, and the preheated glass fiber is immersed in a modification liquid 3-5 times the total amount of the glass fiber and stirred for modification treatment. After the stirring is completed, a modified glass fiber liquid is obtained; S2: The modified glass fiber liquid and additives are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a glass fiber agent.

[0008] Preferably, the mass fraction of the sodium dodecylbenzenesulfonate solution is 5-8%; the stirring speed of the stirring modification treatment is 350-400 r / min, and the stirring is performed for 1 hour.

[0009] Preferably, the mixing ball milling treatment is performed at a ball milling speed of 1500 r / min and the ball milling is performed for 2 hours.

[0010] Preferably, the preparation method of the additive is: 3-5 parts of α-alumina and 2-3 parts of silicon carbide are blended and added into 5-8 parts of lanthanum chloride solution, and then 1-3 parts of titanium oxide are added, stirred evenly, filtered and dried to obtain the additive.

[0011] Preferably, the mass fraction of the lanthanum chloride solution is 2-5%.

[0012] Preferably, the modification method of the modified perlite is: S11: irradiating the perlite in a proton irradiation box for 1 hour at an irradiation power of 350-400W. After the irradiation is completed, irradiated perlite is obtained; 3-5 parts of mullite powder, 1-3 parts of silane coupling agent KH550, 5-8 parts of sodium lignin sulfonate solution and 2-3 parts of yttrium oxide are mixed uniformly to obtain a perlite treatment solution; S12: ultrasonically modifying the irradiated perlite and the perlite treatment liquid in a weight ratio of 3:5. After the ultrasonic modification is completed, the perlite is filtered and dried to obtain modified perlite.

[0013] Preferably, the mass fraction of the sodium lignin sulfonate solution is 2-5%; the ultrasonic power of the ultrasonic modification treatment is 350-400W, and the ultrasonic treatment is for 1 hour.

[0014] The present invention also provides a method for preparing a polymer raised floor substrate with fireproofing effect, comprising the following steps: The raw materials were weighed according to their weight, mixed evenly, and then injected into a mold for pressing at a pressure of 15 MPa for 2 hours. After the pressing was completed, the raw materials were cured at a temperature of 55-60°C for 8 hours to obtain the raised floor substrate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The polymer elevated floor substrate of the present invention adopts magnesium oxide, magnesium sulfate, epoxy resin, polyurethane, polyvinyl alcohol and other raw materials, and glass fiber agent and modified perlite are added to coordinate and synergize the two, so that the fire prevention, heat preservation and strength performance of the obtained substrate product are coordinated and improved, and the corrosion resistance and stability of the product are remarkable; the glass fiber agent adopts glass fiber to be improved and treated with a modifying liquid composed of raw materials such as boron nitride and calcium sulfate whiskers, and is further improved and treated with ball milling with additives, and the raw materials such as α-alumina and silicon carbide in the additives are blended to obtain the glass fiber agent to enhance the adjustment and improvement in the system, optimize the coordination and stability of product performance, and at the same time, the modified perlite adopts perlite to be irradiated, and is then improved and treated with ultrasonic improvement of perlite treatment liquid, and is blended with specific raw materials such as mullite powder and yttrium oxide, so that the modified perlite and glass fiber agent are better coordinated and coordinated, and the performance of the product is further improved. DETAILED DESCRIPTION

[0016] 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.

[0017] The fireproof polymer raised floor substrate of this embodiment includes the following raw materials in parts by weight: 20-30 parts of magnesium oxide, 10-20 parts of magnesium sulfate, 20-25 parts of epoxy resin, 5-8 parts of glass fiber agent, 4-7 parts of polyurethane, 2-5 parts of polyvinyl alcohol, and 2-5 parts of modified perlite.

[0018] The polymer raised floor substrate of this embodiment includes the following raw materials in parts by weight: 25 parts of magnesium oxide, 15 parts of magnesium sulfate, 22.5 parts of epoxy resin, 6.5 parts of glass fiber agent, 5.5 parts of polyurethane, 3.5 parts of polyvinyl alcohol, and 3.5 parts of modified perlite.

[0019] The preparation method of the glass fiber agent of this embodiment is: S1: 3-5 parts of sodium dodecylbenzenesulfonate solution, 2-3 parts of boron nitride, 1-3 parts of calcium sulfate whiskers and 2-4 parts of sodium carboxymethyl cellulose are uniformly mixed to obtain a modified solution; The glass fiber is preheated at 55-60°C for 1 hour, and the preheated glass fiber is immersed in a modification liquid 3-5 times the total amount of the glass fiber and stirred for modification treatment. After the stirring is completed, a modified glass fiber liquid is obtained; S2: The modified glass fiber liquid and additives are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a glass fiber agent.

[0020] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 5-8%; the stirring speed of the modification treatment is 350-400 r / min, and the stirring is performed for 1 hour.

[0021] The ball milling speed of the mixing ball milling treatment in this embodiment is 1500 r / min, and the ball milling is 2 h.

[0022] The preparation method of the additive of this embodiment is: 3-5 parts of α-alumina and 2-3 parts of silicon carbide are blended and added into 5-8 parts of lanthanum chloride solution, and then 1-3 parts of titanium oxide are added, stirred evenly, filtered and dried to obtain the additive.

[0023] The mass fraction of the lanthanum chloride solution of the present embodiment is 2-5%.

[0024] The modification method of the modified perlite of the present embodiment is: S11: irradiating the perlite in a proton irradiation box for 1 hour at an irradiation power of 350-400W. After the irradiation is completed, irradiated perlite is obtained; 3-5 parts of mullite powder, 1-3 parts of silane coupling agent KH550, 5-8 parts of sodium lignin sulfonate solution and 2-3 parts of yttrium oxide are mixed uniformly to obtain a perlite treatment solution; S12: ultrasonically modifying the irradiated perlite and the perlite treatment liquid in a weight ratio of 3:5. After the ultrasonic modification is completed, the perlite is filtered and dried to obtain modified perlite.

[0025] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 2-5%; the ultrasonic power of the ultrasonic modification treatment is 350-400W, and the ultrasonic treatment is performed for 1 hour.

[0026] The method for preparing a fireproof polymer raised floor substrate of this embodiment includes the following steps: The raw materials were weighed according to their weight, mixed evenly, and then injected into a mold for pressing at a pressure of 15 MPa for 2 hours. After the pressing was completed, the raw materials were cured at a temperature of 55-60°C for 8 hours to obtain the raised floor substrate.

[0027] Example 1. The fireproof polymer raised floor substrate of this embodiment includes the following raw materials in parts by weight: 20 parts of magnesium oxide, 10 parts of magnesium sulfate, 20 parts of epoxy resin, 5 parts of glass fiber agent, 4 parts of polyurethane, 2 parts of polyvinyl alcohol, and 2 parts of modified perlite.

[0028] The preparation method of the glass fiber agent of this embodiment is: S1: 3 parts of sodium dodecylbenzenesulfonate solution, 2 parts of boron nitride, 1 part of calcium sulfate whiskers and 2 parts of sodium carboxymethyl cellulose are uniformly mixed to obtain a modified solution; The glass fiber is preheated at 55°C for 1 hour, and the preheated glass fiber is immersed in a modification liquid 3 times the total amount of the glass fiber and stirred for modification treatment. After the stirring is completed, a modified glass fiber liquid is obtained; S2: The modified glass fiber liquid and additives are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a glass fiber agent.

[0029] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 5%; the stirring speed of the stirring modification treatment is 350 r / min, and the stirring is performed for 1 hour.

[0030] The ball milling speed of the mixing ball milling treatment in this embodiment is 1500 r / min, and the ball milling is 2 h.

[0031] The preparation method of the additive of this embodiment is: 3 parts of α-alumina and 2 parts of silicon carbide are blended and added into 5 parts of lanthanum chloride solution, and then 1 part of titanium oxide is added, stirred evenly, filtered and dried to obtain an additive.

[0032] The mass fraction of the lanthanum chloride solution of the present embodiment is 2%.

[0033] The modification method of the modified perlite of the present embodiment is: S11: irradiating the perlite in a proton irradiation box for 1 hour at an irradiation power of 350 W. After the irradiation is completed, irradiated perlite is obtained; 3 parts of mullite powder, 1 part of silane coupling agent KH550, 5 parts of sodium lignin sulfonate solution and 2 parts of yttrium oxide were mixed uniformly to obtain a perlite treatment solution; S12: ultrasonically modifying the irradiated perlite and the perlite treatment liquid in a weight ratio of 3:5. After the ultrasonic modification is completed, the perlite is filtered and dried to obtain modified perlite.

[0034] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 2%; the ultrasonic power of the ultrasonic modification treatment is 350 W, and the ultrasonic treatment is performed for 1 hour.

[0035] The method for preparing a fireproof polymer raised floor substrate of this embodiment includes the following steps: The raw materials were weighed according to their weight, mixed evenly, and then injected into a mold for pressing at a pressure of 15 MPa for 2 hours. After the pressing was completed, the raw materials were cured at a temperature of 55°C for 8 hours to obtain the raised floor substrate.

[0036] Example 2. The fireproof polymer raised floor substrate of this embodiment includes the following raw materials in parts by weight: 30 parts of magnesium oxide, 20 parts of magnesium sulfate, 25 parts of epoxy resin, 8 parts of glass fiber agent, 7 parts of polyurethane, 5 parts of polyvinyl alcohol, and 5 parts of modified perlite.

[0037] The preparation method of the glass fiber agent of this embodiment is: S1: 5 parts of sodium dodecylbenzenesulfonate solution, 3 parts of boron nitride, 3 parts of calcium sulfate whiskers and 4 parts of sodium carboxymethyl cellulose are uniformly blended to obtain a modified solution; The glass fiber is preheated at 60°C for 1 hour, and then immersed in a modification liquid 5 times the total amount of the glass fiber, and stirred for modification. After the stirring is completed, a modified glass fiber liquid is obtained. S2: The modified glass fiber liquid and additives are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a glass fiber agent.

[0038] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 8%; the stirring speed of the stirring modification treatment is 400 r / min, and the stirring is performed for 1 hour.

[0039] The ball milling speed of the mixing ball milling treatment in this embodiment is 1500 r / min, and the ball milling is 2 h.

[0040] The preparation method of the additive of this embodiment is: 5 parts of α-alumina and 3 parts of silicon carbide were blended and added into 8 parts of lanthanum chloride solution, and then 3 parts of titanium oxide were added, stirred evenly, filtered and dried to obtain an additive.

[0041] The mass fraction of the lanthanum chloride solution of the present embodiment is 5%.

[0042] The modification method of the modified perlite of the present embodiment is: S11: irradiating the perlite in a proton irradiation box for 1 hour at an irradiation power of 400 W. After the irradiation is completed, irradiated perlite is obtained; 5 parts of mullite powder, 3 parts of silane coupling agent KH550, 8 parts of sodium lignin sulfonate solution and 3 parts of yttrium oxide were mixed uniformly to obtain a perlite treatment solution; S12: ultrasonically modifying the irradiated perlite and the perlite treatment liquid in a weight ratio of 3:5. After the ultrasonic modification is completed, the perlite is filtered and dried to obtain modified perlite.

[0043] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 5%; the ultrasonic power of the ultrasonic modification treatment is 400 W, and the ultrasonic treatment is performed for 1 hour.

[0044] The method for preparing a fireproof polymer raised floor substrate of this embodiment includes the following steps: The raw materials were weighed according to their weight, mixed evenly, and then injected into a mold for pressing at a pressure of 15 MPa for 2 hours. After the pressing was completed, the raw materials were cured at a temperature of 60°C for 8 hours to obtain the raised floor substrate.

[0045] Example 3. The fireproof polymer raised floor substrate of this embodiment includes the following raw materials in parts by weight: 25 parts of magnesium oxide, 15 parts of magnesium sulfate, 22.5 parts of epoxy resin, 6.5 parts of glass fiber agent, 5.5 parts of polyurethane, 3.5 parts of polyvinyl alcohol, and 3.5 parts of modified perlite.

[0046] The preparation method of the glass fiber agent of this embodiment is: S1: 4 parts of sodium dodecylbenzenesulfonate solution, 2.5 parts of boron nitride, 2 parts of calcium sulfate whiskers and 3 parts of sodium carboxymethyl cellulose are uniformly blended to obtain a modified solution; The glass fiber is preheated at 57.5°C for 1 hour, and the preheated glass fiber is immersed in a modification liquid of 4 times the total amount of the glass fiber and stirred for modification treatment. After the stirring is completed, a modified glass fiber liquid is obtained; S2: The modified glass fiber liquid and additives are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a glass fiber agent.

[0047] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 6.5%; the stirring speed of the stirring modification treatment is 375 r / min, and the stirring is performed for 1 hour.

[0048] The ball milling speed of the mixing ball milling treatment in this embodiment is 1500 r / min, and the ball milling is 2 h.

[0049] The preparation method of the additive of this embodiment is: 4 parts of α-alumina and 2.5 parts of silicon carbide were blended and added into 6.5 parts of lanthanum chloride solution, and then 2 parts of titanium oxide were added. The mixture was stirred evenly, filtered, and dried to obtain an additive.

[0050] The mass fraction of the lanthanum chloride solution of the present embodiment is 3.5%.

[0051] The modification method of the modified perlite of the present embodiment is: S11: irradiating the perlite in a proton irradiation box for 1 hour at an irradiation power of 375W. After the irradiation is completed, irradiated perlite is obtained; 4 parts of mullite powder, 2 parts of silane coupling agent KH550, 6.5 parts of sodium lignin sulfonate solution and 2.5 parts of yttrium oxide were mixed uniformly to obtain a perlite treatment solution; S12: ultrasonically modifying the irradiated perlite and the perlite treatment liquid in a weight ratio of 3:5. After the ultrasonic modification is completed, the perlite is filtered and dried to obtain modified perlite.

[0052] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 3.5%; the ultrasonic power of the ultrasonic modification treatment is 375 W, and the ultrasonic treatment is performed for 1 hour.

[0053] The method for preparing a fireproof polymer raised floor substrate of this embodiment includes the following steps: The raw materials were weighed according to their weight, mixed evenly, and then injected into a mold for pressing at a pressure of 15 MPa for 2 hours. After the pressing was completed, the raw materials were cured at a temperature of 57.5°C for 8 hours to obtain the raised floor substrate.

[0054] Comparative Example 1. The difference from Example 3 is that no glass fiber agent is added.

[0055] Comparative Example 2. The difference from Example 3 is that no modifying liquid is added during the preparation of the glass fiber agent.

[0056] Comparative Example 3. The difference from Example 3 is that no boron nitride and calcium sulfate whiskers are added to the modified solution.

[0057] Comparative Example 4. The difference from Example 3 is that no additives are added during the preparation of the glass fiber agent.

[0058] Comparative Example 5. The difference from Example 3 is that no modified perlite is added.

[0059] Comparative Example 6. The difference from Example 3 is that no perlite treatment liquid is added to the modified perlite.

[0060] The products of Examples 1-3 of the present invention and Comparative Examples 1-6 were subjected to performance tests.

[0061]

[0062] It can be seen from Examples 1-3 and Comparative Examples 1-6 that the products of the present invention have excellent flame retardant properties, strength, and thermal insulation properties. The combined use of glass fiber agents and modified perlite has significant advantages in improving the performance of the products. In addition, the performance of products made of glass fiber agents and modified perlite prepared by different methods tends to deteriorate, and only the method of the present invention has the most significant effect.

[0063] 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.

[0064] 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 polymer raised floor substrate with fireproofing effect, characterized in that: It includes the following raw materials in parts by weight: 20-30 parts of magnesium oxide, 10-20 parts of magnesium sulfate, 20-25 parts of epoxy resin, 5-8 parts of glass fiber agent, 4-7 parts of polyurethane, 2-5 parts of polyvinyl alcohol, and 2-5 parts of modified perlite.

2. The fireproof polymer raised floor substrate according to claim 1, characterized in that: The polymer raised floor substrate comprises the following raw materials in parts by weight: 25 parts of magnesium oxide, 15 parts of magnesium sulfate, 22.5 parts of epoxy resin, 6.5 parts of glass fiber agent, 5.5 parts of polyurethane, 3.5 parts of polyvinyl alcohol, and 3.5 parts of modified perlite.

3. The fireproof polymer raised floor substrate according to claim 2, characterized in that: The preparation method of the glass fiber agent is: S1: 3-5 parts of sodium dodecylbenzenesulfonate solution, 2-3 parts of boron nitride, 1-3 parts of calcium sulfate whiskers and 2-4 parts of sodium carboxymethyl cellulose are uniformly mixed to obtain a modified solution; The glass fiber is preheated at 55-60°C for 1 hour, and the preheated glass fiber is immersed in a modification liquid 3-5 times the total amount of the glass fiber and stirred for modification treatment. After the stirring is completed, a modified glass fiber liquid is obtained; S2: The modified glass fiber liquid and additives are mixed in a weight ratio of 5:3 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain a glass fiber agent.

4. The fireproof polymer raised floor substrate according to claim 3, characterized in that: The mass fraction of the sodium dodecylbenzenesulfonate solution is 5-8%; the stirring speed of the stirring modification treatment is 350-400 r / min, and the stirring is performed for 1 hour.

5. The fireproof polymer raised floor substrate according to claim 3, characterized in that: The mixing and ball milling treatment was performed at a ball milling speed of 1500 r / min and the ball milling was performed for 2 h.

6. The fireproof polymer raised floor substrate according to claim 3, characterized in that: The preparation method of the additive is: 3-5 parts of α-alumina and 2-3 parts of silicon carbide are blended and added into 5-8 parts of lanthanum chloride solution, and then 1-3 parts of titanium oxide are added, stirred evenly, filtered and dried to obtain the additive.

7. The fireproof polymer raised floor substrate according to claim 6, characterized in that: The mass fraction of the lanthanum chloride solution is 2-5%.

8. The fireproof polymer raised floor substrate according to claim 6, characterized in that: The modification method of the modified perlite is: S11: irradiating the perlite in a proton irradiation box for 1 hour at an irradiation power of 350-400W. After the irradiation is completed, irradiated perlite is obtained; 3-5 parts of mullite powder, 1-3 parts of silane coupling agent KH550, 5-8 parts of sodium lignin sulfonate solution and 2-3 parts of yttrium oxide are mixed uniformly to obtain a perlite treatment solution; S12: ultrasonically modifying the irradiated perlite and the perlite treatment liquid in a weight ratio of 3:

5. After the ultrasonic modification is completed, the perlite is filtered and dried to obtain modified perlite.

9. The fireproof polymer raised floor substrate according to claim 8, characterized in that: The mass fraction of the sodium lignin sulfonate solution is 2-5%; the ultrasonic power of the ultrasonic modification treatment is 350-400W, and the ultrasonic treatment is performed for 1 hour.

10. The method for preparing a fireproof polymer raised floor substrate according to any one of claims 1 to 9, characterized in that: The following steps are involved: The raw materials were weighed according to their weight, mixed evenly, and then injected into a mold for pressing at a pressure of 15 MPa for 2 hours. After the pressing was completed, the raw materials were cured at a temperature of 55-60°C for 8 hours to obtain the raised floor substrate.

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