CN110655416A - Mica foam insulation board and preparation method thereof - Google Patents
Mica foam insulation board and preparation method thereof Download PDFInfo
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- CN110655416A CN110655416A CN201911044117.9A CN201911044117A CN110655416A CN 110655416 A CN110655416 A CN 110655416A CN 201911044117 A CN201911044117 A CN 201911044117A CN 110655416 A CN110655416 A CN 110655416A
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- mica
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- insulation board
- foam insulation
- curing agent
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/12—Condensation polymers of aldehydes or ketones
- C04B26/125—Melamine-formaldehyde condensation polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
- B29K2061/20—Aminoplasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to the technical field of building materials, in particular to a mica foam insulation board and a preparation method thereof. The mica foam insulation board is prepared from the following raw materials in parts by weight: 60-80 parts of mica, 20-40 parts of modified melamine resin, 2-4 parts of surfactant, 3-6 parts of foaming agent and 6-12 parts of curing agent. The invention organically combines the characteristics of a molecular structure with the functions of materials through molecular design, combines functional monomers with triazine rings of melamine through chemical reactions such as addition, condensation, polymerization and the like, synthesizes modified melamine resin with various functional chain segments, different molecular chain structures and active groups, and achieves the effects of heat insulation and fire prevention by virtue of the sheet structure characteristics of mica after mixing with mica to produce the mica foam insulation board with excellent fire resistance.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a mica foam insulation board and a preparation method thereof.
Background
Mica is one of the main rock-making minerals, is a general name of mica group minerals, is aluminosilicate of metals such as potassium, aluminum, magnesium, iron, lithium and the like, has a layered structure, is in a hexagonal flaky crystal form, has glass luster, and has elasticity. Mica has very high insulating and heat-insulating properties, good chemical stability, strong acid, strong alkali and pressure resistance, and can be widely applied to the fields of building material industry, fire-fighting industry, fire extinguishing agents, welding electrodes, electrical insulation and the like. The mica mineral mainly comprises biotite, phlogopite, muscovite, lepidolite, sericite, biotite, lepidolite and the like, and the placer is a mixed mineral of mica and quartz. The most industrially used are muscovite and phlogopite.
The melamine foam is widely applied to the fields of heat insulation, sound insulation, building walls, color steel partitions, airplanes, high-speed rails, vehicle and ship shells and the like due to excellent flame retardance, high strength, aging resistance and chemical corrosion resistance. However, melamine foam also has disadvantages such as high brittleness, low toughness, high water absorption, and the like.
Disclosure of Invention
The invention aims to provide a mica foam insulation board prepared by taking mica as a main raw material and blending, foaming, curing and forming modified melamine resin and a preparation method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a mica foam insulation board is characterized in that: the feed is prepared from the following raw materials in parts by weight: 60-80 parts of mica, 20-40 parts of modified melamine resin, 2-4 parts of surfactant, 3-6 parts of foaming agent and 6-12 parts of curing agent.
Preferably, the mica foam insulation board is prepared from the following raw materials in parts by weight: 70 parts of mica, 30 parts of modified melamine resin, 3 parts of surfactant, 4 parts of foaming agent and 8 parts of curing agent.
Preferably, the mica is muscovite and/or phlogopite, has a flaky crystal structure, has a mesh number of 60-120 meshes, and contains less than 10% of quartz sand.
Preferably, the blowing agent is n-pentane and cyclopentane in a ratio of 1: 0.8-1.5 by mass ratio.
Preferably, the curing agent is ammonium chloride, hexamethylenetetramine, formic acid according to a weight ratio of 0.5-0.8: 0.3-0.5: 1, and mixing the components in a mass ratio.
The preparation method of the mica foam insulation board comprises the following steps:
1. preparation of modified Melamine resin
Firstly, adding a proper amount of water, melamine, benzoguanamine and paraformaldehyde into a reaction kettle, adding an alkaline catalyst into the reaction kettle, and adjusting the pH to be 8-9; rapidly heating to 90-95 ℃, adding triphenyl phosphate and polyester polyol accounting for 10% of melamine by weight after the mixture is clear, adding urea when the mixture reacts to the cloud point, and distilling under reduced pressure until the viscosity meets the requirement; cooling to normal temperature for later use;
2. mixing and forming of mica foam insulation board
Weighing the modified melamine resin prepared in the step 1, mica, a surfactant, a foaming agent and a curing agent according to a formula ratio, and then fully mixing; then, the mixture is put into a mould, and is foamed, cured and formed under the temperature condition of 80 ℃ to obtain the mica foam insulation board with excellent mechanical strength.
Has the advantages that: compared with the prior art, the invention organically combines the characteristics of the molecular structure with the functions of the material through molecular design, combines the functional monomer with the triazine ring of the melamine through chemical reactions such as addition, condensation, polymerization and the like, synthesizes the modified melamine resin with various functional chain segments, different molecular chain structures and active groups, achieves the effects of heat insulation and fire prevention by mixing the modified melamine resin with mica and by means of the sheet structure characteristics of the mica, and produces the mica foam insulation board with excellent fire resistance. Specifically, the mica foam insulation board prepared by the formula and the process has the following advantages:
1. the melamine resin is modified through molecular design, so that the melamine resin has the performance of producing building insulation boards, and the flame retardant property of the melamine resin is fully utilized;
2. through mixing and forming of mica and modified melamine resin, a heat-insulating fireproof grid is formed by fully utilizing a sheet structure of the mica, and a compact fireproof grid is formed by combining carbonization of melamine foam in case of fire, so that the purpose of improving the flame retardant grade of the material to reach A level is achieved, the mechanical and physical properties of the material are promoted, and the material can reach the national standard of application of building insulation boards;
3. through research on foaming and curing processes, a forming process of the heat-insulating plate is realized, and the prepared mica foam heat-insulating plate has the properties of low density, high strength, excellent flame retardant property, low heat conductivity coefficient, excellent electrical insulation property, corrosion resistance and the like;
4. the mica foam insulation board can work at the working condition of-180 ℃ to 200 ℃ for a long time, has no decomposition and deformation phenomena, and has good heat-resistant stability;
5. the mica foam insulation board is used as an A-grade insulation material, has a heat conductivity coefficient of only 0.038W/(m.K), and belongs to an insulation material;
6. the volume weight of the mica foam insulation board is 100-3Belonging to light A-grade heat-insulating materials;
7. the mica foam insulation board is formed by appropriate foaming, crosslinking and curing, and accords with low-carbon, green and safe social consumption and living concepts;
8. the burning performance of the mica foam insulation board reaches A-level non-combustible standard specified in GB/T8624-.
Detailed Description
The invention is further described with reference to specific examples.
Example 1:
the mica foam insulation board is prepared from the following raw materials in parts by weight: 60 parts of mica, 20 parts of modified melamine resin, 2 parts of surfactant, 3 parts of foaming agent and 6 parts of curing agent.
The mica is muscovite, is in a flaky crystal structure, has 60 meshes and contains less than 10 percent of quartz sand; the foaming agent is prepared from n-pentane and cyclopentane according to the weight ratio of 1: 0.8 by mass ratio; the curing agent is ammonium chloride, hexamethylene tetramine and formic acid, and the weight ratio of the curing agent to the curing agent is 0.5: 0.3: 1, and mixing the components in a mass ratio.
The preparation method of the mica foam insulation board comprises the following steps:
1. preparation of modified Melamine resin
Firstly, adding a proper amount of water, melamine, benzoguanamine and paraformaldehyde into a reaction kettle, then adding an alkaline catalyst into the reaction kettle, and adjusting the pH to be 8; rapidly heating to 90 ℃, adding triphenyl phosphate and polyester polyol accounting for 10% of melamine by weight after the mixture is clear, adding urea when the mixture reacts to a cloud point, and distilling under reduced pressure until the viscosity meets the requirement; cooling to normal temperature for later use;
2. mixing and forming of mica foam insulation board
Fully mixing 20 parts of modified melamine resin prepared in the step 1, 60 parts of mica, 2 parts of surfactant, 3 parts of foaming agent and 6 parts of curing agent; then, the mixture is put into a mould, foamed, cured and formed under the temperature condition of 80 ℃, and the mica foam insulation board with excellent mechanical strength is prepared, and the volume weight of the mica foam insulation board is 100kg/m3And class A combustion performance.
Example 2:
the mica foam insulation board is prepared from the following raw materials in parts by weight: 70 parts of mica, 30 parts of modified melamine resin, 3 parts of surfactant, 4 parts of foaming agent and 8 parts of curing agent.
The mica is a mixture of muscovite and phlogopite, is in a flaky crystal structure, has a mesh number of 100 meshes and contains less than 10 percent of quartz sand; the foaming agent is prepared from n-pentane and cyclopentane according to the weight ratio of 1: 1.2, mixing the raw materials according to the mass ratio; the curing agent is ammonium chloride, hexamethylene tetramine and formic acid, and the weight ratio of the curing agent to the curing agent is 0.6: 0.4: 1, and mixing the components in a mass ratio.
The preparation method of the mica foam insulation board comprises the following steps:
1. preparation of modified Melamine resin
Firstly, adding a proper amount of water, melamine, benzoguanamine and paraformaldehyde into a reaction kettle, then adding an alkaline catalyst into the reaction kettle, and adjusting the pH value to be 8.5; rapidly heating to 95 ℃, adding triphenyl phosphate and polyester polyol accounting for 10% of melamine by weight after the mixture is clear, adding urea when the mixture reacts to a cloud point, and distilling under reduced pressure until the viscosity meets the requirement; cooling to normal temperature for later use;
2. mixing and forming of mica foam insulation board
Fully mixing 30 parts of modified melamine resin prepared in the step 1, 70 parts of mica, 3 parts of surfactant, 4 parts of foaming agent and 8 parts of curing agent; then, put into a mold, foamed, cured, formed at a temperature of 80 ℃, andthe prepared mica foam insulation board with excellent mechanical strength has the volume weight of 120kg/m3And class A combustion performance.
Example 3:
the mica foam insulation board is prepared from the following raw materials in parts by weight: 80 parts of mica, 40 parts of modified melamine resin, 4 parts of surfactant, 6 parts of foaming agent and 12 parts of curing agent.
The mica is phlogopite and has a flaky crystal structure, the mesh number is 120 meshes, and the content of quartz sand is less than 10 percent; the foaming agent is prepared from n-pentane and cyclopentane according to the weight ratio of 1: 1.5 in mass ratio; the curing agent is ammonium chloride, hexamethylene tetramine and formic acid, and the weight ratio of the curing agent to the curing agent is 0.8: 0.5: 1, and mixing the components in a mass ratio.
The preparation method of the mica foam insulation board comprises the following steps:
1. preparation of modified Melamine resin
Firstly, adding a proper amount of water, melamine, benzoguanamine and paraformaldehyde into a reaction kettle, then adding an alkaline catalyst into the reaction kettle, and adjusting the pH value to 9; rapidly heating to 95 ℃, adding triphenyl phosphate and polyester polyol accounting for 10% of melamine by weight after the mixture is clear, adding urea when the mixture reacts to a cloud point, and distilling under reduced pressure until the viscosity meets the requirement; cooling to normal temperature for later use;
2. mixing and forming of mica foam insulation board
Fully mixing 40 parts of modified melamine resin prepared in the step 1, 80 parts of mica, 4 parts of surfactant, 6 parts of foaming agent and 12 parts of curing agent; then, the mixture is put into a mould, foamed, cured and formed under the temperature condition of 80 ℃, and the mica foam insulation board with excellent mechanical strength is prepared, and the volume weight of the mica foam insulation board is 110kg/m3And class A combustion performance.
According to GB 8624-:
combustion performance class A test results
As can be seen from Table 1, the mica foam insulation board provided by the invention meets the A-level standard of GB 8624 and 2012 'building material and product combustion performance grading'.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A mica foam insulation board is characterized in that: the feed is prepared from the following raw materials in parts by weight: 60-80 parts of mica, 20-40 parts of modified melamine resin, 2-4 parts of surfactant, 3-6 parts of foaming agent and 6-12 parts of curing agent.
2. The mica foam insulation board of claim 1, wherein: the feed is prepared from the following raw materials in parts by weight: 70 parts of mica, 30 parts of modified melamine resin, 3 parts of surfactant, 4 parts of foaming agent and 8 parts of curing agent.
3. The mica foam insulation board of claim 1 or 2, characterized in that: the mica is muscovite and/or phlogopite, has a flaky crystal structure, has a mesh number of 60-120 meshes, and contains less than 10% of quartz sand.
4. The mica foam insulation board of claim 1 or 2, characterized in that: the foaming agent is prepared from n-pentane and cyclopentane according to the weight ratio of 1: 0.8-1.5 by mass ratio.
5. The mica foam insulation board of claim 1 or 2, characterized in that: the curing agent is ammonium chloride, hexamethylene tetramine and formic acid, and the weight ratio of the curing agent to the curing agent is 0.5-0.8: 0.3-0.5: 1, and mixing the components in a mass ratio.
6. The preparation method of the mica foam insulation board according to claim 1, which is characterized in that: the method comprises the following steps:
(1) preparation of modified Melamine resin
Firstly, adding a proper amount of water, melamine, benzoguanamine and paraformaldehyde into a reaction kettle, adding an alkaline catalyst into the reaction kettle, and adjusting the pH to be 8-9; rapidly heating to 90-95 ℃, adding triphenyl phosphate and polyester polyol accounting for 10% of melamine by weight after the mixture is clear, adding urea when the mixture reacts to the cloud point, and distilling under reduced pressure until the viscosity meets the requirement; cooling to normal temperature for later use;
(2) mixing and forming of mica foam insulation board
Weighing the modified melamine resin prepared in the step (1), mica, a surfactant, a foaming agent and a curing agent according to a formula ratio, and then fully mixing; then, the mixture is put into a mould, and is foamed, cured and formed under the temperature condition of 80 ℃ to obtain the mica foam insulation board with excellent mechanical strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911044117.9A CN110655416A (en) | 2019-10-30 | 2019-10-30 | Mica foam insulation board and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911044117.9A CN110655416A (en) | 2019-10-30 | 2019-10-30 | Mica foam insulation board and preparation method thereof |
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| CN110655416A true CN110655416A (en) | 2020-01-07 |
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| CN201911044117.9A Withdrawn CN110655416A (en) | 2019-10-30 | 2019-10-30 | Mica foam insulation board and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002322374A (en) * | 2001-04-27 | 2002-11-08 | Kanegafuchi Chem Ind Co Ltd | Foamable fire-retardant composition excellent in fire resistance |
| CN102321237A (en) * | 2011-04-21 | 2012-01-18 | 南京红宝丽股份有限公司 | Polylol for foamed plastic and polyisocyanurate foamed plastic adopting same |
| CN103194042A (en) * | 2013-04-02 | 2013-07-10 | 沈阳德汇新型材料有限公司 | Urea-formaldehyde foam plastic insulation board and preparation method thereof |
| CN103374201A (en) * | 2012-04-28 | 2013-10-30 | 河南永威安防股份有限公司 | Preparation method of melamine-formaldehyde foam plate for flame retardance and heat insulation |
| CN104250386A (en) * | 2014-09-25 | 2014-12-31 | 四川金象赛瑞化工股份有限公司 | Preparation method of flame-retardant melamine hard foam |
| CN106220801A (en) * | 2016-07-25 | 2016-12-14 | 东北林业大学 | A kind of preparation method of activated carbon modified melamine resin microsphere foam |
| CN107674169A (en) * | 2017-11-06 | 2018-02-09 | � 韩 | A kind of non-ignitable external wall insulation of A levels and preparation method thereof |
-
2019
- 2019-10-30 CN CN201911044117.9A patent/CN110655416A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002322374A (en) * | 2001-04-27 | 2002-11-08 | Kanegafuchi Chem Ind Co Ltd | Foamable fire-retardant composition excellent in fire resistance |
| CN102321237A (en) * | 2011-04-21 | 2012-01-18 | 南京红宝丽股份有限公司 | Polylol for foamed plastic and polyisocyanurate foamed plastic adopting same |
| CN103374201A (en) * | 2012-04-28 | 2013-10-30 | 河南永威安防股份有限公司 | Preparation method of melamine-formaldehyde foam plate for flame retardance and heat insulation |
| CN103194042A (en) * | 2013-04-02 | 2013-07-10 | 沈阳德汇新型材料有限公司 | Urea-formaldehyde foam plastic insulation board and preparation method thereof |
| CN104250386A (en) * | 2014-09-25 | 2014-12-31 | 四川金象赛瑞化工股份有限公司 | Preparation method of flame-retardant melamine hard foam |
| CN106220801A (en) * | 2016-07-25 | 2016-12-14 | 东北林业大学 | A kind of preparation method of activated carbon modified melamine resin microsphere foam |
| CN107674169A (en) * | 2017-11-06 | 2018-02-09 | � 韩 | A kind of non-ignitable external wall insulation of A levels and preparation method thereof |
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Application publication date: 20200107 |