High-strength fireproof lightweight partition board and preparation method thereof

Abstract

The application discloses a high-strength fireproof light partition wall plate and a preparation method thereof, and belongs to the technical field of light partition walls. The high-strength fireproof light partition wall plate comprises the following raw materials in parts by weight: cement 35-40 parts, microsilica powder 10-12 parts, gypsum 10-15 parts, water reducing agent 0.1-0.3 parts, polyurethane 10-12 parts, reinforcing agent 4-5 parts, dimethylbenzene 5-8 parts, reinforcing fiber 0.5-1.5 parts, foaming agent 1-2 parts, foam stabilizer 0.3-0.5 parts and deionized water 15-20 parts. The high-strength fireproof light partition wall plate prepared by the application has excellent compressive strength, bending strength and flame-retardant property.

Description

Technical Field

[0001] This invention relates to the field of lightweight partition technology, specifically to a high-strength fireproof lightweight partition wall panel and its preparation method. Background Technology

[0002] With the rapid development of prefabricated building decoration and green building technologies, building partition materials are gradually moving towards lightweight, high-strength, fire-resistant, and easy-to-construct materials. Lightweight partition boards offer advantages such as light weight, multiple environmental benefits, thermal insulation, sound insulation, fire resistance, and rapid construction. However, existing lightweight partition boards typically reduce density by introducing a large number of foam cells, resulting in a loose internal structure, lower flexural strength and impact resistance. This makes them prone to cracking, chipping, and even breakage during transportation, installation, or use, failing to meet the safety requirements of partition walls in high-rise and public buildings.

[0003] Chinese invention patent CN117185729A discloses a method for manufacturing lightweight concrete partition walls. This method uses 35-60% fly ash, 11-25% slag, 15-30% cement, 10-30% micro-mineral powder, and 0.2-0.4% liquid polycarboxylate superplasticizer as the ash material, with a water-cement ratio of 0.32-0.4. The lightweight concrete partition walls are then produced using conventional methods. This invention involves adding small amounts of cement and micro-mineral powder to fly ash and slag to produce lightweight concrete partition walls. The resulting lightweight concrete partition walls are low-cost and consume large amounts of solid waste such as fly ash and slag, but their mechanical properties are still insufficient. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a high-strength fireproof lightweight partition wall panel and its preparation method.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-strength fireproof lightweight partition wall panel comprises the following raw materials in parts by weight: 35-40 parts cement, 10-12 parts silica fume, 10-15 parts gypsum, 0.1-0.3 parts water-reducing agent, 10-12 parts polyurethane, 4-5 parts reinforcing agent, 5-8 parts xylene, 0.5-1.5 parts reinforcing fiber, 1-2 parts foaming agent, 0.3-0.5 parts foam stabilizer, 15-20 parts deionized water; The reinforcing agent is prepared by the following method: S1: Oleylamine reacts with bisphenol F diglycidyl ether to form the first intermediate, and the reaction equation is shown below:

[0006] S2: 4-Hydroxy-3-methoxybenzaldehyde reacts with γ-chloropropyltrimethoxysilane to form a second intermediate, as shown in the following reaction equation:

[0007] S3: The second intermediate reacts with glutathione to generate the third intermediate, and the reaction equation is shown below:

[0008] S4: The first intermediate reacts with the third intermediate to form the reinforcing agent. The reaction equation is shown below:

[0009]

[0010] In step S1, the molar ratio of oleylamine to bisphenol F diglycidyl ether is (2.05-2.1):1.

[0011] In step S2, the molar ratio of 4-hydroxy-3-methoxybenzaldehyde to γ-chloropropyltrimethoxysilane is 1:(1.1-1.2).

[0012] In step S3, the molar ratio of the second intermediate to glutathione is 1:(1.05-1.15).

[0013] In step S4, the molar ratio of the first intermediate to the third intermediate is 1:(2.1-2.3).

[0014] The reinforcing fiber is one of polypropylene fiber and polyester fiber.

[0015] The foaming agent is hydrogen peroxide.

[0016] The water-reducing agent is a polycarboxylate high-performance water-reducing agent.

[0017] The foam stabilizer is a modified silicone polyether emulsion.

[0018] A high-strength fireproof lightweight partition wall panel, characterized by comprising the following steps: (1) Weigh out the following by weight: 35-40 parts cement, 10-12 parts silica fume, 10-15 parts gypsum, 0.1-0.3 parts water-reducing agent, 10-12 parts polyurethane, 4-5 parts reinforcing agent, 5-8 parts xylene, 0.5-1.5 parts reinforcing fiber, 1-2 parts foaming agent, 0.3-0.5 parts foam stabilizer, and 15-20 parts deionized water; (2) Cement, silica fume, gypsum, water-reducing agent and deionized water are mixed evenly to obtain inorganic mixture. Polyurethane, reinforcing agent, xylene and reinforcing fiber are stirred and mixed evenly and then added to inorganic mixture. Then foaming agent and foam stabilizer are added and mixed evenly to obtain mixed slurry. The mixed slurry is injected into mold, left to stand and demolded to obtain high-strength fireproof lightweight partition board.

[0019] Due to the adoption of the above technical solutions, the beneficial effects of the present invention include: The high-strength fire-resistant lightweight partition wall panel prepared by this invention has excellent compressive strength, flexural strength, and flame retardant properties. The reinforcing agents added to the components enhance the interfacial bonding ability and improve the mechanical properties of the partition wall panel by forming covalent bonds, coordination bonds, hydrogen bonds, etc. Attached Figure Description

[0020] Figure 1 The 1H NMR spectrum of the enhancer prepared in Example 1; Figure 2 The image shows a high-resolution mass spectrum of the enhancer prepared in Example 1. Detailed Implementation

[0021] The following description, in conjunction with specific embodiments, provides further details, but the present invention is not limited to these embodiments.

[0022] Example 1: Preparation of the reinforcing agent: S1: 500 ml THF and 0.205 mol oleylamine were added to a reaction vessel and stirred until homogeneous. The mixture was heated to 40 °C, and 0.1 mol bisphenol F diglycidyl ether was added dropwise over 30 min. The reaction was allowed to proceed for 6 h, then cooled to room temperature and distilled under reduced pressure at 45 °C for 1 h. 300 ml diethyl ether was added and stirred to precipitate the product. The precipitate was filtered, washed with 100 ml diethyl ether, and dried under vacuum at 50 °C for 10 h to obtain the first intermediate. Its 1H NMR data are as follows: 1 H NMR (400 MHz, DMSO- d 6) δ 7.16 (dt, J = 8.3, 1.2 Hz, 4H), 6.86- 6.80 (m, 4H), 5.47 (t, J = 5.5 Hz, 4H), 4.50 (d, J = 5.5 Hz, 2H), 4.02 -3.87 (m, 8H), 3.76 (tt, J = 6.6, 4.8 Hz, 2H), 2.83 - 2.60 (m, 8H), 2.05 -1.92 (m, 8H), 1.52 - 1.39 (m, 4H), 1.36 - 1.23 (m, 44H), 0.95 - 0.84 (m, 6H); HRMS(m / z):847.7231[M+H] +; S2: 250 ml of anhydrous toluene, 0.1 mol of 4-hydroxy-3-methoxybenzaldehyde, 0.11 mol of γ-chloropropyltrimethoxysilane, 0.3 mol of potassium carbonate, and 0.01 mol of potassium iodide were added to a reaction vessel, stirred and mixed, heated to 80 °C, and reacted for 24 h. After cooling to room temperature, the mixture was filtered, and the filtrate was distilled under reduced pressure at 60 °C for 2 h. 100 ml of anhydrous petroleum ether was added and stirred to precipitate the product. The precipitate was filtered, dried under vacuum at 50 °C for 10 h, and the second intermediate was obtained. Its 1H NMR data are as follows: 1 H NMR (400 MHz, DMSO- d 6) δ 9.87(s, 1H), 7.46 (dd, J = 8.6, 1.8 Hz, 1H), 7.40 (d, J = 1.8 Hz, 1H), 6.96 (d, J= 8.7 Hz, 1H), 3.98 (t, J = 7.2 Hz, 2H), 3.83 (s, 3H), 3.55 (s, 9H), 1.85(tt, J = 9.7, 7.3 Hz, 2H), 0.89 (t, J = 9.6 Hz, 2H); HRMS(m / z): 315.1198[M+H] + ; S3: Under nitrogen protection, 400 ml of anhydrous DMF, 0.1 mol of the second intermediate, and 0.105 mol of glutathione were added to a reaction vessel, stirred and mixed, heated to 60 °C, and reacted for 8 h. The mixture was then distilled under reduced pressure at 80 °C for 1 h. Recrystallization was performed using 250 ml of a mixed solution of acetone and DMF (acetone to DMF volume ratio 7:3), filtered, and dried under vacuum at 50 °C for 10 h to obtain the third intermediate. Its 1H NMR data are as follows: 1 H NMR (400 MHz, Chloroform- d) δ 11.49 (s, 1H), 11.28 (s, 1H), 8.37(s, 1H), 7.95 (d, J = 8.1 Hz, 1H), 7.50 (t, J = 6.5 Hz, 1H), 7.27 (d, J = 1.9Hz, 1H), 7.19 (dd, J = 8.3, 1.9 Hz, 1H), 6.94 (d, J = 8.2 Hz, 1H), 4.42 -4.27 (m, 2H), 3.99 (t, J = 7.2 Hz, 2H), 3.94 - 3.81 (m, 5H), 3.57 (s, 9H), 3.01 - 2.82 (m, 2H), 2.59 (m, 2H), 2.22 - 2.02 (m, 2H), 1.94 - 1.76 (m, 3H), 0.89 (t, J = 9.7 Hz, 2H); HRMS (m / z): 604.1924[M+H] + ; S4: Under nitrogen protection, 200 ml of anhydrous THF, 0.1 mol of the first intermediate, 0.21 mol of the third intermediate, and 0.5 g of photoinitiator 184 were added to the reaction vessel. The mixture was stirred for 10 min, irradiated under 300 W UV light at 25°C for 30 min with stirring, and then distilled under reduced pressure at 45°C for 1 h. The product was purified by column chromatography using a mixture of dichloromethane and methanol as the eluent (dichloromethane to methanol volume ratio 10:1). The product was then distilled under reduced pressure at 50°C for 2 h to obtain the enhancer. Its proton NMR spectrum is shown in Figure 1, and the data are as follows: 1 H NMR (400 MHz, Chloroform- d) δ 11.49 (s, 2H), 11.28 (s, 2H), 8.41 (s, 1H), 8.37(s, 1H), 7.98 (d, J = 8.0 Hz, 2H), 7.70 (t, J = 6.4 Hz, 2H), 7.27 (d, J = 1.7Hz, 2H), 7.22 - 7.13 (m, 6H), 6.94 (d, J = 8.2 Hz, 2H), 6.86 - 6.78 (m, 4H), 4.45 (t, J = 8.2 Hz, 1H), 4.40 (dt, J = 8.1, 5.1 Hz, 2H), 4.32 (s, 1H), 4.03- 3.81 (m, 22H), 3.65 (s, 2H), 3.57 (s, 18H), 3.53 (d, J = 5.5 Hz, 2H), 3.00-2.73 (m, 10H), 2.72-2.50 (m, 8H), 2.24-2.02 (m, 4H), 1.94-1.76 (m, 4H), 1.59-1.43 (m, 12H), 1.39-1.22 (m, 48H), 0.95-0.83 (m, 10H); High-resolution mass spectra are shown below. Figure 2 As shown, HRMS (m / z): 2055.1089 [M+H] + .

[0023] Example 2 Preparation of the reinforcing agent S1: Add 500 ml THF and 0.208 mol oleylamine to the reaction vessel, stir and mix well, heat to 45°C, add 0.1 mol bisphenol F diglycidyl ether dropwise, the addition is completed in 30 min, react for 5 h, cool to room temperature, distill under reduced pressure at 45°C for 1 h, add 300 ml diethyl ether and stir to precipitate, filter, wash with 100 ml diethyl ether, dry under vacuum at 50°C for 10 h to obtain the first intermediate; S2: Add 250 ml of anhydrous toluene, 0.1 mol of 4-hydroxy-3-methoxybenzaldehyde, 0.115 mol of γ-chloropropyltrimethoxysilane, 0.3 mol of potassium carbonate, and 0.01 mol of potassium iodide to a reaction vessel, stir and mix well, heat to 85 °C, react for 24 h, cool to room temperature, filter, distill the filtrate under reduced pressure at 60 °C for 2 h, add 100 ml of anhydrous petroleum ether and stir to precipitate, filter, and dry under vacuum at 50 °C for 10 h to obtain the second intermediate; S3: Under nitrogen protection, 400 ml of anhydrous DMF, 0.1 mol of the second intermediate, and 0.11 mol of glutathione were added to the reaction vessel, stirred and mixed, heated to 65 °C, reacted for 7 h, and then distilled under reduced pressure at 80 °C for 1 h. The mixture was recrystallized using 250 ml of a mixed solution of acetone and DMF (the volume ratio of acetone to DMF was 7:3), filtered, and dried under vacuum at 50 °C for 10 h to obtain the third intermediate. S4: Under nitrogen protection, 200 ml of anhydrous THF, 0.1 mol of the first intermediate, 0.22 mol of the third intermediate, and 0.5 g of photoinitiator 184 were added to the reaction vessel and stirred for 10 min. The mixture was then irradiated under 300 W UV light at 25 °C for 40 min with stirring. After distillation under reduced pressure at 45 °C for 1 h, the mixture was purified by column chromatography with a mixed solution of dichloromethane and methanol as the eluent (volume ratio of dichloromethane to methanol was 10:1). The mixture was then distilled under reduced pressure at 50 °C for 2 h to obtain the enhancer.

[0024] Example 3 Preparation of the reinforcing agent S1: Add 500 ml THF and 0.21 mol oleylamine to the reaction vessel, stir and mix well, heat to 50℃, add 0.1 mol bisphenol F diglycidyl ether dropwise, the addition is completed in 30 min, react for 4 h, cool to room temperature, distill under reduced pressure at 45℃ for 1 h, add 300 ml diethyl ether and stir to precipitate, filter, wash with 100 ml diethyl ether, dry under vacuum at 50℃ for 10 h to obtain the first intermediate; S2: Add 250 ml of anhydrous toluene, 0.1 mol of 4-hydroxy-3-methoxybenzaldehyde, 0.12 mol of γ-chloropropyltrimethoxysilane, 0.3 mol of potassium carbonate, and 0.01 mol of potassium iodide to a reaction vessel, stir and mix well, heat to 80 °C, react for 24 h, cool to room temperature, filter, distill the filtrate under reduced pressure at 60 °C for 2 h, add 100 ml of anhydrous petroleum ether and stir to precipitate, filter, and dry under vacuum at 50 °C for 10 h to obtain the second intermediate; S3: Under nitrogen protection, 400 ml of anhydrous DMF, 0.1 mol of the second intermediate, and 0.115 mol of glutathione were added to the reaction vessel, stirred and mixed, heated to 70 °C, reacted for 6 h, and then distilled under reduced pressure at 80 °C for 1 h. The mixture was recrystallized using 250 ml of a mixed solution of acetone and DMF (the volume ratio of acetone to DMF was 7:3), filtered, and dried under vacuum at 50 °C for 10 h to obtain the third intermediate. S4: Under nitrogen protection, 200 ml of anhydrous THF, 0.1 mol of the first intermediate, 0.23 mol of the third intermediate, and 0.5 g of photoinitiator 184 were added to the reaction vessel and stirred for 10 min. The mixture was then irradiated under 300 W UV light at 25 °C for 50 min with stirring. After distillation under reduced pressure at 45 °C for 1 h, the mixture was purified by column chromatography with a mixed solution of dichloromethane and methanol as the eluent (the volume ratio of dichloromethane to methanol was 10:1). The mixture was then distilled under reduced pressure at 50 °C for 2 h to obtain the enhancer.

[0025] Example 4: Preparation of High-Strength Fireproof Lightweight Partition Board (1) Weigh out: 350g cement, 100g silica fume, 100g gypsum, 1g water-reducing agent (polycarboxylate high-performance water-reducing agent), 100g polyurethane, 40g reinforcing agent (prepared in Example 1), 50g xylene, 5g reinforcing fiber (polypropylene fiber), 10g foaming agent (30wt% hydrogen peroxide), 3g foam stabilizer (modified silicone polyether emulsion), and 150g deionized water; (2) Mix cement, silica fume, gypsum, water-reducing agent and deionized water, stir at 800 rpm for 30 min to obtain inorganic mixture. Mix polyurethane, reinforcing agent, xylene and reinforcing fiber, stir at 800 rpm for 20 min and add to inorganic mixture. Then add foaming agent and foam stabilizer, stir at 1000 rpm for 10 min to obtain mixed slurry. Pour the mixed slurry into mold (500mm×500mm×25mm), let stand at room temperature for 24 h, demold to obtain high-strength fireproof lightweight partition board.

[0026] Example 5: Preparation of High-Strength Fireproof Lightweight Partition Board (1) Weigh out: 380g cement, 110g silica fume, 120g gypsum, 2g water-reducing agent (polycarboxylate high-performance water-reducing agent), 112g polyurethane, 45g reinforcing agent (prepared in Example 2), 60g xylene, 12g reinforcing fiber (polypropylene fiber), 13g foaming agent (30wt% hydrogen peroxide), 4g foam stabilizer (modified silicone polyether emulsion), and 180g deionized water; (2) Mix cement, silica fume, gypsum, water-reducing agent and deionized water, stir at 800 rpm for 30 min to obtain inorganic mixture. Mix polyurethane, reinforcing agent, xylene and reinforcing fiber, stir at 800 rpm for 20 min and add to inorganic mixture. Then add foaming agent and foam stabilizer, stir at 1000 rpm for 10 min to obtain mixed slurry. Pour the mixed slurry into mold (500mm×500mm×25mm), let stand at room temperature for 24 h, demold to obtain high-strength fireproof lightweight partition board.

[0027] Example 6: Preparation of High-Strength Fireproof Lightweight Partition Board (1) Weigh out: 400g cement, 120g silica fume, 150g gypsum, 3g water-reducing agent (polycarboxylate high-performance water-reducing agent), 120g polyurethane, 50g reinforcing agent (prepared in Example 3), 80g xylene, 15g reinforcing fiber (polyester fiber), 20g foaming agent (30wt% hydrogen peroxide), 5g foam stabilizer (modified silicone polyether emulsion), and 200g deionized water; (2) Mix cement, silica fume, gypsum, water-reducing agent and deionized water, stir at 800 rpm for 30 min to obtain inorganic mixture. Mix polyurethane, reinforcing agent, xylene and reinforcing fiber, stir at 800 rpm for 20 min and add to inorganic mixture. Then add foaming agent and foam stabilizer, stir at 1000 rpm for 10 min to obtain mixed slurry. Pour the mixed slurry into mold (500mm×500mm×25mm), let stand at room temperature for 24 h, demold to obtain high-strength fireproof lightweight partition board.

[0028] Comparative Example 1 The raw material composition and preparation method of the high-strength fireproof lightweight partition board are basically the same as those in Example 5, except that the reinforcing agent is replaced with an equal weight of the reinforcing agent prepared by the following method: The preparation method of the reinforcing agent is basically the same as that in Example 2, except that the oleylamine in step S1 is replaced with an equimolar amount of 3-butene-1-amine.

[0029] Comparative Example 2 The raw material composition and preparation method of the high-strength fireproof lightweight partition board are basically the same as those in Example 5, except that the reinforcing agent is replaced with an equal weight of the reinforcing agent prepared by the following method: The preparation method of the reinforcing agent is basically the same as that in Example 2, except that the bisphenol F diglycidyl ether in step S1 is replaced with an equimolar amount of 1,1-methylenebis[4-(2,3-epoxypropoxy)cyclohexane].

[0030] Comparative Example 3 The raw material composition and preparation method of the high-strength fireproof lightweight partition board are basically the same as those in Example 5, except that the reinforcing agent is replaced with an equal weight of the reinforcing agent prepared by the following method: The preparation method of the reinforcing agent is basically the same as that in Example 2, except that the γ-chloropropyltrimethoxysilane in step S2 is replaced with an equimolar amount of γ-chloropropylmethyldimethoxysilane.

[0031] Comparative Example 4 The raw material composition and preparation method of the high-strength fireproof lightweight partition board are basically the same as those in Example 5, except that the reinforcing agent is replaced with an equal weight of the reinforcing agent prepared by the following method: The preparation method of the enhancer is basically the same as that in Example 2, except that the glutathione in step S3 is replaced with an equimolar amount of L-cysteine.

[0032] Comparative Example 5 The raw material composition and preparation method of the high-strength fireproof lightweight partition board are basically the same as those in Example 5. The difference is that the reinforcing agent is replaced with an equal weight of a mixture of the first intermediate (prepared in step S1 of Example 2) and the third intermediate (prepared in step S3 of Example 2) mixed in a mass ratio of 1:1.4.

[0033] Comparative Example 6 The raw material composition and preparation method of the high-strength fireproof lightweight partition board are basically the same as those in Example 5, except that no reinforcing agent is added to the components.

[0034] The cement used in the embodiments and comparative examples of this application is ordinary Portland cement, model PO-42.5, produced by Wuxi Jianghuai Building Materials Technology Co., Ltd.; the microsilica powder is Elkem920, produced by Shandong Boken Silicon Materials Co., Ltd.; the gypsum is dihydrate gypsum powder with a particle size uniformly distributed between 80-120 mesh, produced by Lucheng Taishan Gypsum Building Materials Co., Ltd.; the polycarboxylate high-performance water-reducing agent is model SPC-100, produced by Liaoning Kelong Fine Chemical Co., Ltd.; the polyurethane is model HC-8690, produced by Shanghai Hecheng Polymer Technology Co., Ltd.; the polypropylene fiber is bundled monofilament fiber with a diameter uniformly distributed between 18-65μm; the polyester fiber is modified polyester fiber with a diameter of 20±5μm and a length of 6mm, produced by Changzhou Tianyi Engineering Fiber Co., Ltd.; and the modified silicone resin polyether emulsion is model FM-550.

[0035] The high-strength fire-resistant lightweight partition boards prepared in Examples 4-6 and Comparative Examples 1-6 were cut into 100mm×100mm×25mm specimens according to GB / T 30100-2013 standard, and their compressive strength was tested at a load rate of 0.1MPa / s. The lightweight partition boards were also cut into 250mm×250mm×25mm specimens for flexural strength testing. The high-strength fire-resistant lightweight partition boards prepared in the examples and comparative examples were tested for flame retardancy according to GB 8624-2012 standard. The flame retardancy rating of the samples was determined based on the combustion performance rating and grading criteria for flat building materials and products. The test results are shown in Table 1.

[0036] Table 1 Performance Data Sheet

[0037] As can be seen from the data in Examples 4-6, the high-strength fireproof lightweight partition wall panel prepared by the present invention has excellent compressive strength, flexural strength and flame retardant properties.

[0038] The reinforcing agent prepared in this invention uses diphenylmethane as its core, with secondary amines, carboxyl groups, Schiff bases, siloxanes, amide groups, and flexible long alkyl chains symmetrically introduced on both sides to construct a synergistic reinforcing system that combines rigid support, flexible energy dissipation, and multiple chemical bonding capabilities. The secondary amine groups in the reinforcing agent molecule can react with unreacted isocyanate groups in the polyurethane to form stable covalent bonds, allowing the reinforcing agent to be chemically grafted into the three-dimensional polyurethane network. The amide groups can form hydrogen bonds with the urethane groups in the polyurethane, improving the structural integrity and interfacial bonding strength within the organic phase. In the three-dimensional polyurethane network, the rigid core of diphenylmethane acts as a molecular skeleton, bearing stress under external forces and improving the compressive and flexural strength of the partition wall. The flexible long alkyl chains can act as toughening and buffering agents at the microscale, absorbing and dissipating impact energy. The Schiff base structure can absorb impact energy through reversible fracture and recombination, improving the mechanical properties of the partition wall. The carboxyl groups can react with metal ions (such as Ca) in cement hydration products. 2+ Coordination bonds occur, forming a chemisorption layer on the cement surface, further improving interfacial bonding stability. The siloxane structure can hydrolyze into silanol groups, which condense with hydroxyl groups on the surface of cement hydration products to form Si-O-Si covalent bonds, thereby improving the chemical bonding between the reinforcing agent and the cement matrix. The reinforcing agent synergistically forms a stable and adaptable chemical bonding network at the organic-inorganic interface through multiple covalent bonds, coordination bonds, and hydrogen bonds, enabling the system to maintain high strength under static load conditions and possess good toughening and buffering capabilities under impact or bending loads. The reinforcing agent used in Comparative Example 2 lacks a rigid diphenylmethane core, resulting in a decrease in compressive and flexural strength.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. However, any modifications, alterations, and variations made by those skilled in the art without departing from the scope of the present invention based on the disclosed technical content are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A high strength fire resistant lightweight partition panel, characterized in that, The ingredients include the following parts by weight: 35-40 parts cement, 10-12 parts silica fume, 10-15 parts gypsum, 0.1-0.3 parts water-reducing agent, 10-12 parts polyurethane, 4-5 parts reinforcing agent, 5-8 parts xylene, 0.5-1.5 parts reinforcing fiber, 1-2 parts foaming agent, 0.3-0.5 parts foam stabilizer, 15-20 parts deionized water; The reinforcing agent is prepared by the following method: S1: Oleylamine reacts with bisphenol F diglycidyl ether to form the first intermediate. S2: 4-Hydroxy-3-methoxybenzaldehyde reacts with γ-chloropropyltrimethoxysilane to form a second intermediate. S3: The second intermediate reacts with glutathione to generate the third intermediate. S4: The first intermediate reacts with the third intermediate to generate an enhancer; In step S1, the molar ratio of oleylamine to bisphenol F diglycidyl ether is (2.05-2.1):1; in step S2, the molar ratio of 4-hydroxy-3-methoxybenzaldehyde to γ-chloropropyltrimethoxysilane is 1:(1.1-1.2); in step S3, the molar ratio of the second intermediate to glutathione is 1:(1.05-1.15); in step S4, the molar ratio of the first intermediate to the third intermediate is 1:(2.1-2.3).

2. A high strength fire resistant light weight wall panel as claimed in claim 1 wherein, The reinforcing fiber is one of polypropylene fiber and polyester fiber.

3. A high strength fire resistant light weight wall panel as claimed in claim 1 wherein, The foaming agent is hydrogen peroxide.

4. A high strength fire resistant light weight wall panel as claimed in claim 1 wherein, The water-reducing agent is a polycarboxylate high-performance water-reducing agent.

5. A high strength fire resistant light weight wall panel as claimed in claim 1 wherein, The foam stabilizer is a modified silicone polyether emulsion.

6. A method of manufacturing the high strength fire resistant lightweight partition board according to any one of claims 1 to 5, characterized in that, Includes the following steps: (1) Weigh out the following by weight: 35-40 parts cement, 10-12 parts silica fume, 10-15 parts gypsum, 0.1-0.3 parts water-reducing agent, 10-12 parts polyurethane, 4-5 parts reinforcing agent, 5-8 parts xylene, 0.5-1.5 parts reinforcing fiber, 1-2 parts foaming agent, 0.3-0.5 parts foam stabilizer, and 15-20 parts deionized water; (2) Cement, silica fume, gypsum, water-reducing agent and deionized water are mixed evenly to obtain inorganic mixture. Polyurethane, reinforcing agent, xylene and reinforcing fiber are stirred and mixed evenly and then added to inorganic mixture. Then foaming agent and foam stabilizer are added and mixed evenly to obtain mixed slurry. The mixed slurry is injected into mold, left to stand and demolded to obtain high-strength fireproof lightweight partition board.

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