CN111410432A - Graphite modified rock wool product and preparation method thereof - Google Patents
Graphite modified rock wool product and preparation method thereof Download PDFInfo
- Publication number
- CN111410432A CN111410432A CN202010358753.5A CN202010358753A CN111410432A CN 111410432 A CN111410432 A CN 111410432A CN 202010358753 A CN202010358753 A CN 202010358753A CN 111410432 A CN111410432 A CN 111410432A
- Authority
- CN
- China
- Prior art keywords
- rock wool
- graphite
- wool product
- product
- modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C03C25/34—Condensation polymers of aldehydes, e.g. with phenols, ureas, melamines, amides or amines
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a graphite modified rock wool product and a preparation method thereof, wherein the rock wool product consists of rock wool filaments and doped graphite, and the graphite accounts for 0.1-10% of the weight of the composite rock wool product. The preparation process comprises the following steps: cement is used as a binder, graphite and raw material scraps are bonded together to prepare a test block added with a modifier, the graphite is uniformly dispersed in rock slurry when the test block is melted, the graphite is uniformly compounded on fiber yarns when fiber is formed to form graphite modified rock wool, and a rock wool product is obtained after cotton collection, transmission, pleating, pressurization and solidification; according to the invention, the rock wool product is modified by adding graphite without changing the original preparation process, so that the heat conductivity coefficient of the rock wool product is effectively reduced, and the heat insulation effect of the rock wool product is improved.
Description
Technical Field
The invention belongs to the technical field of building material production, and relates to a graphite modified rock wool product and a preparation method thereof.
Background
The existing commonly used heat insulation materials are mainly divided into inorganic heat insulation materials and organic heat insulation materials, the organic heat insulation materials are low in heat conductivity coefficient and good in heat insulation performance, but the organic heat insulation materials are easy to burn and low in flame retardant grade, and the organic heat insulation materials are large in smoke release amount and toxicity and low in use safety when being burned. The inorganic heat-insulating material has good flame-retardant property and no toxicity. Because the rock wool product has better flame retardant property, the rock wool product is often used as a wall external thermal insulation material, the heat conductivity coefficient of the existing rock wool board is 0.04W/(m.K), the thermal insulation effect is not good, and the requirement of building thermal insulation standard is difficult to meet. In order to meet the requirements of building heat preservation standards, the thickness of a heat preservation layer of the existing building needs to be increased, the construction difficulty is increased, and the building cost is increased.
The graphite belongs to a hexagonal system, has a lamellar structure, and has metal luster among layers, and the lamellar structure and the metal luster enable the graphite to have a mirror reflection effect and can reflect infrared rays. The Pasf company utilizes the mirror effect of graphite and the porous structure of polyphenyl particles, the thermal conductivity of the prepared graphite polyphenyl plate is reduced from 0.039W/(m.K) to 0.032W/(m.K), the thermal conductivity is greatly reduced, but the flame retardant level of the graphite polyphenyl plate is still B-level flame retardant.
The organic heat-insulating material has low heat conductivity coefficient and low flame-retardant level, and the rock wool heat-insulating material has high flame-retardant level but high heat conductivity coefficient. Therefore, the preparation of a modified rock wool material, which not only reduces the heat conductivity coefficient of rock wool, but also does not change the flame retardant grade of rock wool, is a technical problem to be solved in the field at present.
Disclosure of Invention
The invention aims to provide a graphite modified rock wool product, which is produced by adding a graphite material to compound the rock wool product without changing the original preparation process flow of rock wool, so that the heat conductivity coefficient of the rock wool product is reduced, and the fireproof performance and the heat preservation effect of the rock wool product are improved. The invention also aims to provide a preparation method of the graphite modified rock wool product,
the technical scheme of the invention is as follows: the graphite modified rock wool product consists of rock wool and graphite doped with the rock wool, and the addition amount of the graphite is 0.1-10% of the weight of the composite rock wool product.
The graphite modified rock wool product has a heat conductivity coefficient of 0.030-0.035W/(m.K), and a flame retardant grade of A. The graphite modified rock wool product is longitudinally cut into the graphite modified rock wool heat preservation strip by a cutting machine.
According to the preparation method of the graphite modified rock wool product, the graphite modified rock wool product is formed by synchronously compounding rock wool and graphite on the existing production line. The preparation process comprises the following steps:
(1) preparing a graphite modified test block: uniformly mixing graphite and cement in advance according to a certain proportion, then uniformly stirring the mixture and the raw material chips, adding a certain proportion of water, and uniformly stirring to prepare a graphite modified test block; graphite: wherein the cement: water: the ratio of the raw material scraps is 2-45: 100: 30-35: 600 to 900;
(2) preparing rock wool silk: crushing the small test block in the step (1), adding the crushed small test block into a heating furnace, and melting the small test block into rock slurry at high temperature through oxygen-enriched combustion; the furnace temperature is 1300-1550 ℃; preparing rock pulp into rock wool yarns through a four-roller centrifuge under the conditions of high-speed rotation of 3500-5500 rpm and high-pressure blow-off air, and synchronously spraying a phenolic resin binder on the rock wool yarns; the rock wool filaments with the phenolic resin binder enter a cotton collecting chamber under the action of high-pressure blowing-off air;
(3) preparing rock wool bundles: the rock wool yarns in the cotton collecting chamber are adsorbed to a collecting zone through negative pressure air to collect the rock wool yarns, the collecting zone collects the rock wool yarns to form rock wool bundles, and the rock wool bundles are conveyed to a pendulum bob machine through a primary conveying belt and a secondary conveying belt;
(4) preparing a graphite modified rock wool product: the rock wool bundles are pleated and tiled through a pendulum machine, then sent into a cotton pressing machine and a curing oven, and finally formed into the graphite modified rock wool product after pressurization, curing and shaping.
The ore comprises basalt, slag, dolomite and coke, and the mass ratio of the basalt to the slag to the dolomite to the coke is 33-35: 8-12: 15-20: 15 to 20. The dosage of the phenolic resin binder is 8-15% of the weight of the graphite modified rock wool product, and the solid content of the phenolic resin is 10%.
According to the invention, the rock wool product is modified by adding the graphite material into the cement serving as the adhesive to prepare the graphite modified rock wool product, so that the heat conductivity coefficient of the rock wool product is effectively reduced, and the heat preservation effect of the rock wool product is improved. The preparation method of the graphite modified rock wool product is characterized in that the rock wool and the graphite are synchronously compounded on the existing production line, the equipment investment is small, the operation cost is low, the process is simple, and the popularization and application values are realized.
Drawings
FIG. 1 is a schematic view of a graphite modified rock wool article according to the present invention;
wherein: 1-graphite modified rock wool product, 2-graphite and 3-rock wool.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. The scope of protection of the invention is not limited to the embodiments, and any modification made by those skilled in the art within the scope defined by the claims also falls within the scope of protection of the invention.
The graphite modified rock wool product is formed by synchronously compounding rock wool and a graphite agent on the conventional production line. The preparation process of the graphite modified rock wool product comprises the following steps:
(1) preparing a graphite modified test block: uniformly mixing graphite and cement in advance according to the proportion of 25:100, uniformly stirring the mixture and the raw material scraps according to the proportion of 1:7, adding a certain amount of water, uniformly stirring the mixture and the raw material scraps according to the proportion of 1:25, and preparing a graphite modified test block; the ore comprises basalt, slag, dolomite and coke, and the mass ratio of the basalt to the slag to the dolomite to the coke is 34: 10: 16: 19.
(2) preparing rock wool yarns, namely crushing ⑵ small test blocks, adding the crushed test blocks into a heating furnace, filling liquid oxygen, performing oxygen-enriched combustion, and melting the crushed test blocks at a high temperature to form magma, wherein the furnace temperature is 1450-1500 ℃, the magma is made into rock wool yarns through a four-roller centrifugal machine under the high-speed rotation of 5000rpm and high-pressure blowing-off air, and phenolic resin binders are synchronously sprayed on the rock wool yarns;
(3) preparing rock wool bundles: the rock wool yarns in the cotton collecting chamber are adsorbed to a collecting zone through negative pressure air to collect the rock wool yarns, the collecting zone collects the rock wool yarns to form rock wool bundles, and the rock wool bundles are conveyed to a pendulum bob machine through a primary conveying belt and a secondary conveying belt;
(4) preparing a graphite modified rock wool product: the rock wool bundles are pleated and tiled through a pendulum machine, then sent into a cotton pressing machine and a curing oven, and finally formed into the graphite modified rock wool product 1 after being compressed, cured and shaped.
As shown in fig. 1, the graphite modified rock wool product 1 is prepared from rock wool 3, wherein the rock wool contains graphite 2, and the addition amount of the graphite is 7% of the weight of the graphite modified rock wool product. The graphite modified rock wool product is longitudinally cut into graphite modified rock wool strips by a cutting machine.
The prepared graphite modified rock wool product is subjected to performance test, and the test result is shown in table 1. For comparison, the results of the performance tests of prior art rock wool products are shown in Table 1.
TABLE 1 test results for graphite modified rock wool products
The results in table 1 show that the heat conductivity coefficient of the graphite modified rock wool product prepared by the method is reduced to 0.030-0.035W/(m.K), the flame retardant grade is grade A, the heat conductivity coefficient of the rock wool product for exterior wall heat insulation is effectively reduced, and the heat insulation effect of the rock wool product is improved.
Claims (8)
1. A graphite modified rock wool product is characterized in that: the rock wool product consists of rock wool filaments and graphite doped with the rock wool filaments, wherein the addition amount of the graphite is 0.1-10% of the weight of the composite rock wool product.
2. The rock wool yarn as claimed in claim 1, wherein the raw material includes basalt 33-35 parts, slag 8-12 parts, dolomite 15-20 parts and coke 15-20 parts.
3. The modified rock wool product of claim 1 wherein: the rock wool product prepared by the invention comprises a rock wool product, a rock wool strip and a composite product prepared by taking the rock wool product or the rock wool strip as a core material.
4. The method for preparing the graphite modified rock wool product of claim 1, which is characterized by comprising the following steps: the preparation process comprises the following steps: the rock wool product is prepared by using cement as a binder, bonding graphite and raw material chips together to prepare a test block added with a modifier, uniformly dispersing the graphite in rock slurry when the test block is melted, uniformly compounding the graphite on fiber yarns during fiber forming to form graphite modified rock wool yarns, and collecting, conveying, pleating, pressurizing and curing the graphite modified rock wool yarns.
5. The preparation process of the modifier-added test block according to claim 4 comprises the following steps:
the graphite and the cement are uniformly mixed in advance according to the component proportion, then the mixture and the raw material scraps are uniformly stirred, water with a certain proportion is added, and the mixture is uniformly stirred to prepare the graphite modified test block.
6. The process of claim 5, wherein the ratio of graphite: cement: water: the ratio of the raw material scraps is 2-45: 100: 30-35: 600 to 900.
7. The graphite modified test block according to claim 5, wherein the particle size of the graphite modified test block is 50 to 100 mm.
8. The method of producing graphite modified rock wool product as recited in claim 5, further comprising: the dosage of the phenolic resin binder is 8-15% of the weight of the graphite modified rock wool product, and the solid content of the phenolic resin is 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358753.5A CN111410432B (en) | 2020-04-29 | 2020-04-29 | Graphite modified rock wool product and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010358753.5A CN111410432B (en) | 2020-04-29 | 2020-04-29 | Graphite modified rock wool product and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111410432A true CN111410432A (en) | 2020-07-14 |
| CN111410432B CN111410432B (en) | 2023-03-21 |
Family
ID=71487102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010358753.5A Active CN111410432B (en) | 2020-04-29 | 2020-04-29 | Graphite modified rock wool product and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111410432B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834441A (en) * | 2011-03-29 | 2012-12-19 | 巴斯夫欧洲公司 | Method for producing expandable styrene polymer particles having reduced thermal conductivity |
| CN107574937A (en) * | 2017-08-30 | 2018-01-12 | 常州市绿意管道有限公司 | A kind of composite rock wool insulation board material and preparation method thereof |
| CN107827366A (en) * | 2017-12-14 | 2018-03-23 | 威海博盛新材料有限公司 | A kind of rock wool prepared using recovery waste material and preparation method thereof |
| CN107902885A (en) * | 2017-11-22 | 2018-04-13 | 南京彤天岩棉有限公司 | A kind of pro-skin type fire prevention rock wool blanket and preparation method thereof |
| CN208088542U (en) * | 2018-01-24 | 2018-11-13 | 田瑞军 | A kind of exterior wall CPC rock wool heat-preservation composite plates |
| CN108863294A (en) * | 2018-08-20 | 2018-11-23 | 殷桂玲 | A kind of NEW TYPE OF COMPOSITE rock wool aeroge insulation board, composite plate and preparation method thereof |
| CN109320062A (en) * | 2018-10-09 | 2019-02-12 | 交城义望铁合金有限责任公司 | A kind of method of manganese alloy liquid state waste slag hot charging production granulated wool |
| CN109896747A (en) * | 2019-04-17 | 2019-06-18 | 山东大学 | A kind of method that one-step method makes ore-rock cotton using lateritic nickel ore high temperature hot melt waste residue |
-
2020
- 2020-04-29 CN CN202010358753.5A patent/CN111410432B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834441A (en) * | 2011-03-29 | 2012-12-19 | 巴斯夫欧洲公司 | Method for producing expandable styrene polymer particles having reduced thermal conductivity |
| CN107574937A (en) * | 2017-08-30 | 2018-01-12 | 常州市绿意管道有限公司 | A kind of composite rock wool insulation board material and preparation method thereof |
| CN107902885A (en) * | 2017-11-22 | 2018-04-13 | 南京彤天岩棉有限公司 | A kind of pro-skin type fire prevention rock wool blanket and preparation method thereof |
| CN107827366A (en) * | 2017-12-14 | 2018-03-23 | 威海博盛新材料有限公司 | A kind of rock wool prepared using recovery waste material and preparation method thereof |
| CN208088542U (en) * | 2018-01-24 | 2018-11-13 | 田瑞军 | A kind of exterior wall CPC rock wool heat-preservation composite plates |
| CN108863294A (en) * | 2018-08-20 | 2018-11-23 | 殷桂玲 | A kind of NEW TYPE OF COMPOSITE rock wool aeroge insulation board, composite plate and preparation method thereof |
| CN109320062A (en) * | 2018-10-09 | 2019-02-12 | 交城义望铁合金有限责任公司 | A kind of method of manganese alloy liquid state waste slag hot charging production granulated wool |
| CN109896747A (en) * | 2019-04-17 | 2019-06-18 | 山东大学 | A kind of method that one-step method makes ore-rock cotton using lateritic nickel ore high temperature hot melt waste residue |
Non-Patent Citations (2)
| Title |
|---|
| 张向宇: "《实用化学手册》", 31 October 2011, 国防工业出版社 * |
| 田斌守等: "《墙体节能技术与工程应用》", 31 January 2018, 中国建材工业出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111410432B (en) | 2023-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111253075B (en) | Rock wool product and preparation method thereof | |
| EP1127032B1 (en) | Man-made vitreous fibre products for use in thermal insulation, and their production | |
| CN103011681A (en) | Production method for basalt vertical fiber rock wool boards used in outer walls | |
| CN110194636B (en) | Fireproof board and preparation method thereof | |
| CN109485342A (en) | Kenaf stalk lightweight anti-cracking heat insulation mortar and preparation method thereof | |
| CN113955944A (en) | Fireproof rock wool board | |
| CN111517693A (en) | Modified rock wool product and preparation method thereof | |
| CN111410432B (en) | Graphite modified rock wool product and preparation method thereof | |
| CN111499264A (en) | Modified rock wool product and preparation method thereof | |
| CN103194172A (en) | Non-asbestos composite fiber and preparation method thereof | |
| CN107188505B (en) | A kind of fiber reinforcement inorganic composite heat-preserving plate and preparation method thereof | |
| CN105523717B (en) | A kind of novel fire-resistant blanket of glass wool | |
| CN108675723B (en) | High-density fireproof fiber floor and preparation method thereof | |
| CN111517694B (en) | Modified graphite oxide modified rock wool product and preparation method thereof | |
| CN112194472A (en) | Wear-resistant adhesive for repairing gasification furnace and power station boiler and production process | |
| CN114988784B (en) | Calcium silicate board and preparation method thereof | |
| CN111704397B (en) | Fireproof material, fireproof door, preparation method and application | |
| CN103483767B (en) | A kind of composite insulation boards and preparation method thereof | |
| CN113800775B (en) | Preparation method of low-density rock wool board | |
| CN111470845A (en) | Modified rock wool product and preparation method thereof | |
| CN113636772B (en) | Steel slag-based heat-insulating filler and preparation method and application thereof | |
| CN112250336B (en) | Waste rock wool regeneration slag powder and preparation method thereof | |
| CN115140943B (en) | Method for producing rock wool by utilizing solid waste of steel plant | |
| CN116283059B (en) | Environment-friendly composite rock wool insulation board | |
| CN110981346B (en) | High-temperature-resistant civil construction material with good heat preservation effect and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |