Novel fireproof thermal insulation material

Abstract

The invention belongs to the technical field of fireproof thermal insulation material production, and particularly relates to a novel fireproof thermal insulation material. The building material is prepared from the following components in parts by weight: 25-40 parts of a cement binding material, 15-28 parts of nano ceramic particles, 10-15 parts of silica fume, 0.025-0.1 part of an additive, 45-65 parts of a polystyrene foaming material, 0.006-0.025 part of an adhesive, 0.06-0.1 part of a binding agent and the balance of water. The invention provides a novel fireproof thermal insulation material with excellent density and mechanical properties and excellent thermal insulation and flame retardant properties.

Description

Technical Field

[0001] The invention belongs to the technical field of fireproof and heat-insulating material production, and in particular relates to a new type of fireproof and heat-insulating material. Background Art

[0002] Energy is one of the pillars of national economic development, an important material basis for the development of human society, and a prerequisite for economic growth and development. Building energy conservation is of great significance. The application of thermal insulation materials is very effective in reducing the energy consumption of buildings in long-term use. At present, the main thermal insulation materials are thermal insulation boards and thermal insulation mortars. The thermal insulation materials used are mainly organic thermal insulation materials, which have low thermal conductivity and light bulk density, but poor fire resistance. In the event of a fire, they seriously threaten the safety of people's lives and property. Inorganic thermal insulation materials have good weather resistance and fire resistance, but high thermal conductivity and heavy bulk density, and the thermal insulation effect is not as ideal as that of organic thermal insulation materials. At present, the thermal insulation materials on the market generally have hidden dangers such as high specific gravity, high thermal conductivity, poor bonding performance, and easy falling off.

[0003] In order to combine the good thermal insulation effect of organic materials and the fireproof performance of inorganic materials, the present invention proposes a new type of fireproof thermal insulation material based on the study of existing materials. Summary of the invention

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a new type of fireproof and heat-insulating material to make up for the deficiencies of the existing fireproof and heat-insulating materials.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A new type of fireproof and heat-insulating material comprises organic materials and inorganic materials, wherein the inorganic materials comprise cement cementitious materials, nano-ceramic particles, silica fume and additives, and the organic materials comprise polystyrene foaming materials, adhesives and combining agents.

[0007] Furthermore, a new type of fireproof and thermal insulation material is prepared from the following raw materials in parts by weight: 25-40 parts of cementitious materials, 15-28 parts of nano-ceramic particles, 10-15 parts of silica fume and 0.025-0.1 parts of additives, 45-65 parts of polystyrene foaming materials, 0.006-0.025 parts of adhesives, 0.06-0.1 parts of combining agents, and the rest is water.

[0008] Furthermore, the additive is one or a combination of multiple of a water retaining agent, a crack preventing agent, a thickener, and a binder.

[0009] Furthermore, the combining agent is one or a mixture of several of the reinforcing agent, the flame retardant and the stabilizer.

[0010] The present invention also discloses a method for preparing a novel fireproof and heat-insulating material, which comprises:

[0011] Step 1. The polystyrene is heated by steam in a foaming system to form a foam;

[0012] Step 2. Dry-mix the inorganic materials and input them into the silo, then feed them into the first-stage mixer after metering, and then input them into the second-stage mixer after metering, and finally input the inorganic materials and organic materials into the third-stage mixer to mix and stir the inorganic materials and organic materials;

[0013] Step 3. Inject the mixed material produced in step 2 into a cold pressing and shaping device for forming and demoulding.

[0014] Furthermore, in step 2, the secondary stirring uses mechanical foaming to form a plurality of nanometer-level micropores in the inorganic material, thereby lengthening the distance for conducting heat and cold, and forming a plurality of continuous breakpoints in the conductor, thereby playing a role in heat preservation, fire prevention and heat insulation.

[0015] Preferably, the temperature of the cold pressing and shaping is controlled at 5-35° C., and the humidity is controlled at 10-50% RH.

[0016] In summary, due to the adoption of the above technical solution, the beneficial technical effects of the invention are:

[0017] (1) The process is simple, based entirely on existing technical routes and processes, with low cost and low equipment requirements.

[0018] (2) Furthermore, the nanoparticles used in the present invention have a nano effect of agglomeration, which can play the role of a binder, reducing the amount of binder added. In addition, since the nanoparticles are difficult to disperse after agglomeration, the strength of the material is also improved to a certain extent, reducing the amount of reinforcing agent added, which is more conducive to energy saving and consumption reduction, and the synergistic effect is obvious. The preparation method of the thermal insulation and fireproof material provided by the present invention is simple in process, stable and reliable, and efficient and simple.

[0019] (3) The raw materials required for production are all readily available and inexpensive on the market, with low costs. The equipment required for mass production is simple and common, and has important promotion value;

[0020] (4) The thermal insulation and fireproof material provided by the present invention has the characteristics of excellent density and mechanical properties and excellent thermal insulation and flame retardant properties. Its thermal conductivity is ≤0.036 and its density is 80kg / m 3 , compressive strength ≥ 0.15Mpa, flexural strength ≥ 0.20Mpa, pulling perpendicular to the board surface ≥ 0.10Mpa, calorific value ≤ 3MJ / kg, volume water absorption ≤ 10%. The comprehensive performance is significantly higher than similar products in the existing market. It can be widely used in building materials and other fields, and has important practical significance. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the invention more clear, the invention is further described in detail below in combination with the embodiments. It should be understood that the specific embodiments described here are only used to explain the invention and are not used to limit the invention.

[0022] Example 1

[0023] In this embodiment, a new type of fireproof and heat-insulating material is prepared from the following raw materials by weight: 25 parts of cement binder, 15 parts of nano-ceramic particles, 10 parts of silica fume and 0.025 parts of additives, 45 parts of polystyrene foaming material, 0.006-0.025 parts of adhesive, 0.06-0.1 parts of combining agent, and the rest is water. First, the polystyrene is heated by steam in the foaming system to form foams; then, the inorganic material is dry-mixed and input into the silo, and then the material is metered and fed into the first-stage mixer, and then metered and input into the second-stage mixer, and finally, the inorganic material and the organic material are both input into the third-stage mixer, so that the inorganic material and the organic material are mixed and stirred; finally, the resulting mixture is injected into the cold pressing and shaping device, and molded and demolded.

[0024] Among them, the secondary stirring uses mechanical foaming to allow the inorganic material to form multiple nano-level micropores, lengthening the distance for conducting cold and heat, so that the wire forms multiple continuous breakpoints, thereby playing a role in thermal insulation and fire prevention.

[0025] The temperature of the cold pressing and shaping is controlled at 5-35° C., and the humidity is controlled at 10-50% RH.

[0026] Example 2

[0027] In this embodiment, a new type of fireproof and heat-insulating material is prepared from the following raw materials in parts by weight: 30 parts of cementitious materials, 23 parts of nano-ceramic particles, 13 parts of silica fume and 0.06 parts of additives, 55 parts of polystyrene foaming materials, 0.006-0.025 parts of adhesives, 0.06-0.1 parts of combining agents, and the rest is water. First, the polystyrene is heated by steam in the foaming system to form foams; then, the inorganic materials are dry-mixed and input into the silo, and then the materials are metered and fed into the first-stage mixer, and then metered and input into the second-stage mixer, and finally, the inorganic materials and organic materials are both input into the third-stage mixer, so that the inorganic materials and organic materials are mixed and stirred; finally, the mixture produced in step 2 is injected into the cold pressing and shaping device, and the molding and demolding are performed.

[0028] Among them, the secondary stirring uses mechanical foaming to allow the inorganic material to form multiple nano-level micropores, lengthening the distance for conducting cold and heat, so that the wire forms multiple continuous breakpoints, thereby playing a role in thermal insulation and fire prevention.

[0029] The temperature of the cold pressing and shaping is controlled at 5-35° C., and the humidity is controlled at 10-50% RH.

[0030] Example 3

[0031] In this embodiment, a new type of fireproof and heat-insulating material is prepared from the following raw materials by weight: 40 parts of cementitious materials, 28 parts of nano-ceramic particles, 15 parts of silica fume and 0.1 parts of additives, 65 parts of polystyrene foaming materials, 0.006-0.025 parts of adhesives, 0.06-0.1 parts of combining agents, and the rest is water. First, the polystyrene is heated by steam in the foaming system to form foams; then, the inorganic materials are dry-mixed and input into the silo, and then the materials are metered and fed into the first-stage mixer, and then metered and input into the second-stage mixer, and finally, the inorganic materials and organic materials are both input into the third-stage mixer, so that the inorganic materials and organic materials are mixed and stirred; finally, the mixture produced in step 2 is injected into the cold pressing and shaping device, and the molding and demolding are performed.

[0032] Among them, the secondary stirring uses mechanical foaming to allow the inorganic material to form multiple nano-level micropores, lengthening the distance for conducting cold and heat, so that the wire forms multiple continuous breakpoints, thereby playing a role in thermal insulation and fire prevention.

[0033] The temperature of the cold pressing and shaping is controlled at 5-35° C., and the humidity is controlled at 10-50% RH.

[0034] The technical indicators of the materials obtained by the above method are as follows:

[0035] Thermal conductivity ≤ 0.036;

[0036] Density 80kg / m 3 ;

[0037] Compressive strength ≥0.15Mpa;

[0038] Flexural strength ≥ 0.20Mpa;

[0039] Pulling perpendicular to the plate surface ≥ 0.10Mpa;

[0040] Calorific value ≤3MJ / kg;

[0041] Volume water absorption ≤10%.

[0042] The detection method is:

[0043] Thermal conductivity refers to GB-10294 standard;

[0044] Density, flexural strength and compression strength refer to GBT-5486 standard;

[0045] Refer to JG149 standard for pulling perpendicular to the plate surface;

[0046] The calorific value refers to GB8624 standard;

[0047] The volume water absorption rate refers to GB / T8810 standard;

[0048] The above description is a preferred embodiment of the invention and is not intended to limit the invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention should be included in the protection scope of the invention.

Claims

1. A new type of fireproof and heat-insulating material, characterized by: It includes organic materials and inorganic materials, among which the inorganic materials include cement cementitious materials, nano-ceramic particles, silica fume and additives, and the organic materials include polystyrene foaming materials, adhesives and combining agents.

2. A new type of fireproof and heat-insulating material according to claim 1, characterized in that: The invention is prepared from the following raw materials in parts by weight: 25-40 parts of cementitious materials, 15-28 parts of nano ceramic particles, 10-15 parts of silica fume and 0.025-0.1 parts of additives, 45-65 parts of polystyrene foaming materials, 0.006-0.025 parts of adhesives, 0.06-0.1 parts of combining agents, and the rest is water.

3. A new type of fireproof and heat-insulating material according to claim 2, characterized in that: The additive is one or a combination of water retaining agent, anti-cracking agent, thickener and binder.

4. A new type of fireproof and heat-insulating material according to claim 2, characterized in that: The combining agent is one or a mixture of several of a reinforcing agent, a flame retardant and a stabilizer.

5. A method for preparing a novel fireproof and heat-insulating material, comprising: Step 1. The polystyrene is heated by steam in a foaming system to form a foam; Step 2. Dry-mix the inorganic materials and input them into the silo, then feed them into the first-stage mixer after metering, and then input them into the second-stage mixer after metering, and finally input the inorganic materials and organic materials into the third-stage mixer to mix and stir the inorganic materials and organic materials; Step 3. Inject the mixed material produced in step 2 into a cold pressing and shaping device for forming and demoulding.

6. The method for preparing a novel fireproof and heat-insulating material according to claim 5, characterized in that: In step 2, the secondary stirring uses mechanical foaming to form multiple nano-scale micropores in the inorganic material, which lengthens the distance for conducting heat and cold, and forms multiple continuous breakpoints in the wire, thereby playing a role in heat preservation, fire prevention and heat insulation.

7. The method for preparing a novel fireproof and heat-insulating material according to claim 5, characterized in that: The temperature of the cold pressing and shaping is controlled at 5-35° C., and the humidity is controlled at 10-50% RH.