CN101759407B - Fire retardant coating for underground coal seam of coal mine - Google Patents
Fire retardant coating for underground coal seam of coal mine Download PDFInfo
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- CN101759407B CN101759407B CN2009102279649A CN200910227964A CN101759407B CN 101759407 B CN101759407 B CN 101759407B CN 2009102279649 A CN2009102279649 A CN 2009102279649A CN 200910227964 A CN200910227964 A CN 200910227964A CN 101759407 B CN101759407 B CN 101759407B
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
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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
- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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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
- 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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/50—Flexible or elastic materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/50—Flexible or elastic materials
- C04B2111/503—Elastic materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/905—Anti-static materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fireproofing Substances (AREA)
- Paints Or Removers (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides fire retardant coating for an underground coal seam of a coal mine, comprising the following compositions in parts by weight: 74 to 140 parts of powder materials, and 15 to 56 parts of polymer emulsion. The powder materials comprise the following compositions in parts by weight: 30 to 50 parts of high quality cement, 7 to 10 parts of expanded perlite, 5 to 10 parts of expanded vermiculite, 10 to 25 parts of quartz sands, 10 to 15 parts of graphite powder, 0 to 10 parts of coal ash, 10 to 15 parts of aluminum hydroxide, and 2 to 5 parts of magnesium hydroxide. The method for preparing the fire retardant coating comprises the following steps: uniformly mixing the power materials in proportion, and packaging the materials independently; mixing the polymer emulsion with water, and adding the powder material in the mixture in a proportion of the polymer emulsion, the water and the powder materials to be 0.2-0.4:0.15-0.55:1; and uniformly mixing the mixture by a mortar mixer. The coating has the advantages of fire proofing, static resistance, good caking property with coal, good water resistance, good elasticity, non toxicity, easy construction, low cost and the like.
Description
Technical field
The present invention relates to frie retardant coating, specifically belong to a kind of fire retardant coating for underground coal seam of coal mine.
Background technology
Coal-mine fire belongs to one of mine five big disasters.Under coal mine, coal itself is exactly a kind of a large amount of and ubiquitous combustiblematerials; Secondly, all there is combustibility in materials such as the mine timber of a large amount of coal dusts, methane gas and the use that in the process of producing, produces, electromechanical equipment, explosive, oil plant, and their existence is the fundamental element of presence of fire.In case the mine presence of fire, the intensity of a fire speed of development is fast, and control more complicated, the scope of influence are also relatively wider, very easily cause casualties and property damage, even cause coal dust, gas explosion, lead to bigger disaster.For improving the ability of resisting fire under the coal mine, spraying one deck frie retardant coating is one of a kind of effective means on the coal body under coal mine.
The report of relevant " colliery frie retardant coating " is less, and the fire-proof coating for tunnels report is more.Among the patent CN 1594452; People such as Mao Chaojun are sticker with high-alumina cement, white cement and organic polymer emulsion; Sepiolite, pearlstone, light calcium carbonate, superfine alumina silicate are inorganic thermal insulating filling; Trimeric cyanamide, tetramethylolmethane, ammonium polyphosphate, vermiculite and ammonium dichromate are foam material, and Marinco H and white lake are auxiliary agent, have developed a kind of separately-loaded environment-friendly type fire-proof coating for tunnels.The leading indicator of this fire-proof coating for tunnels is: coat-thickness 13mm, and cohesive strength reaches 0.4MPa, and water tolerance reaches 20 days, and producing smoke toxicity is the AQ-1 level, presses the IS0834 curve and heats up, and fire endurance is 3.5 hours.Coat-thickness is when 20mm, and its detailed performance is identical, reaches 3 hours by hydrocarbon curve intensification fire endurance.Though this frie retardant coating effect in traffic tunnel is better, because rib is moist under the coal mine, percolating water phenomenon is general; The coarse injustice of rib, slow distortion can take place in rib, contains a large amount of methane gas; Requirement has antistatic property etc., makes fire-proof coating for tunnels relatively poor to suitability under the coal mine, exists poor, the bad adhesion of antistatic property; There is not elasticity, easy to crack coming off under the situation of rib distortion, deficiencies such as water resistance difference.Therefore, provide a kind of fire resistance good, and good with coal body cohesiveness, antistatic, certain elasticity is arranged, environment-protecting asepsis, the fire retardant coating for underground coal seam of coal mine that is easy to the down-hole construction is very necessary.
Summary of the invention
The object of the present invention is to provide a kind of have antistatic property, with the fire retardant coating for underground coal seam of coal mine of good, the good springiness of coal body cohesiveness, water-tolerant.
A kind of fire retardant coating for underground coal seam of coal mine provided by the invention, component is counted by weight: powder 74～140, polymer emulsion 15～56;
Described powder is counted by weight: cement of high index 30～50, pearlstone 7～10, expanded vermiculite 5～10, silica sand 10～25, Graphite Powder 99 10～15, flyash 0～10, white lake 10～15, Marinco H 2～5;
Described cement of high index is above silicate cement of 425# and/or the above high-alumina cement of 425#;
Described polymer emulsion is flexible benzene emulsion (preferred BASF S400F emulsion), flexible pure-acrylic emulsion or aqueous polyvinyl acetate emulsion; Described polymer emulsion solid content is 45%～57%.
The preparation of fire retardant coating for underground coal seam of coal mine:
Powder mixes in proportion, separately packing; During use, be 0.2～0.4: 0.15～0.55 in polymer emulsion, water, powder: 1 ratio is mixed polymer emulsion and water earlier, adds powder again, mixes with mortar mixer to get final product.
When construction, should confirm the spraying number of times according to coat-thickness; The gradation spraying, the thickness of each spraying must not be constructed pitch time greater than 4mm at every turn must be greater than 24h, and the temperature of spraying application will be more than 5 ℃; Constructional method can adopt mechanically spraying; Also can artificial blade coating, mechanically spraying uses the mortar spray gun, and the spray gun bore is 10mm.
The said coal seam of the present invention frie retardant coating compared with prior art has following advantage:
1. coal seam of the present invention frie retardant coating; Adopt pearlstone, expanded vermiculite, flyash as inorganic insulating refractory filler, use Marinco H, white lake as fire retardant material simultaneously; Used fire resistant infilling has uninflammability, low heat conductivity and heat-proof quality, can increase the flame retardancy of coating; Used fire retardant material; After receiving high temperature action, self can decomposite that nontoxic rare gas element and decomposes phase transformation absorb consumption of calorie, the top layer can form charring layer gradually; And then form the expansible foaming layer, and reduce the conduction of heat effectively, reduce member temperature and stop burning.Under 800 ℃ of alcohol blast burner flames, scorch the 2mm thick layer, the time average when unexposed surface temperature reaches 200 ℃ is 10min.
2. coal seam of the present invention frie retardant coating; Considered residing particular surroundings under the coal mine; Therefore when configuration coating, added polymer emulsion; Improved cohesiveness, water tolerance and the elasticity of coating and coal, coating water resisting time of the present invention can reach 20 days, and coating does not have aliquation, obscission; Have certain elastic deformation performance, can satisfy the requirement of the deformation in surperficial uneven and coal seam self, coal seam, be difficult for taking place crack phenomenon.
3. coal seam of the present invention frie retardant coating adds Graphite Powder 99, the antistatic property of enhancement coating and fire resistance.Coating can reach standard MT113-1995 " general TP of underground mine use polymer product fire retardant, antistatic and decision rule " antistatic property requirement.
4. with low cost.Coating of the present invention, its starting material are cheap and easy to get, add 0～10% flyash again, and cost is further reduced.
5. environment-protecting asepsis.Coating of the present invention, used emulsion is low VOC water-soluble emulsion, powder and liquid material environment-protecting asepsis are little to the ature of coal influence after solidifying.
The technology quality index of products obtained therefrom:
| Project | Index |
| Surface drying time, h | ≤2 |
| Do solid work the time, h | ≤8 |
| The non-processor tensile strength, MPa | ≤1.0 |
| The non-processor elongation at break, % | ≤40 |
| Flame-retarding characteristic | Fire-retardant (coal peace standard: MT113-1995) |
Embodiment:
Below just come invention is further described through embodiment
Embodiment 1
With 425# silicate white cement 20kg, 625# high-alumina cement 20kg, pearlstone 8, expanded vermiculite 5, silica sand 20kg, Graphite Powder 99 15kg, flyash 10kg, white lake 10kg, Marinco H 3kg adds in the powder mixer successively and mixes, and promptly gets powder; At the construction field (site), get the flexible pure-acrylic emulsion of 35kgA8100 and pour whisking appliance into, add 50kg water then; Stir 2min at 300r/min, the back that stirs adds above-mentioned powder, stirs about 10min at 300r/min again; Construct after stirring, in construction process, take the gradation blade coating, each blade coating thickness 2mm; Blade coating 2 times, the temperature of knife-coat application is at 10 ℃.Detected result: surface drying time, 2h; Do solid work the time, 7h; The non-processor tensile strength, 0.7MPa; The non-processor elongation at break, 30%; Water tolerance reaches 20 days; Flame retardant resistance and static resistance meet coal peace standard (MT113-1995), and other performance index are all qualified.
Embodiment 2
With 425# white cement 30kg, 625# high-alumina cement 20kg, pearlstone 10kg; Expanded vermiculite 5kg, silica sand 15kg, Graphite Powder 99 10kg, flyash 10kg, white lake 10kg, Marinco H 4kg; Add successively in the powder mixer, stir 20min, promptly get powder; At the construction field (site), get the flexible benzene emulsion BASF of 29kg S400F and pour whisking appliance into, add 60kg water then, stir 2min at 300r/min; Add above-mentioned powder after stirring, stir about 10min at 300r/min again, can carry out spraying application after stirring; In construction process, take gradation to spray, the thickness of each spraying is 2mm, sprays 2 times; The temperature of mechanically spraying construction will be more than 15 ℃, and mechanically spraying uses the mortar spray gun, and the spray gun bore is 10mm.Detected result: surface drying time, 1.5h; Do solid work the time, 7h; The non-processor tensile strength, 0.8MPa; The non-processor elongation at break, 25%; Water tolerance reaches 20 days; Flame retardant resistance and static resistance meet coal peace standard (MT113-1995), and other performance index are all qualified.
Embodiment 3
With 425# white portland cement 40kg, pearlstone 9kg, expanded vermiculite 5kg, silica sand 25kg, Graphite Powder 99 10kg, white lake 15kg, Marinco H 3kg add in the powder mixer successively, stir 20min, promptly get powder; At the construction field (site), get the flexible benzene emulsion BASF of 40kg S400F and pour whisking appliance into, add 50kg water; 300r/min stirs 2min, and the back that stirs adds above-mentioned powder, stirs about 10min at 300r/min again; Can carry out spraying application after stirring; In construction process, take gradation to spray, the thickness of each spraying is 2mm, sprays 2 times.The same table of the detection method of coal seam frie retardant coating and Interventions Requested, surface drying time, 1.5h; Do solid work the time, 6.5h; The non-processor tensile strength, 0.9MPa; The non-processor elongation at break, 34%; Water tolerance reaches 20 days; Flame retardant resistance and static resistance meet coal peace standard (MT113-1995), and other performance index are all qualified.
Embodiment 4
With 625# high-alumina cement 40kg, pearlstone 7kg, expanded vermiculite 6kg, silica sand 20kg, flyash 5kg, Graphite Powder 99 12kg, white lake 13kg, Marinco H 5kg add in the powder mixer successively, stir 20min, promptly get powder; At the construction field (site), get the flexible benzene emulsion BASF of 41kg S400F and pour whisking appliance into, add 47.5kg water and stir 2min at 300r/min; The above-mentioned powder of back adding stirs; Stir about 10min at 300r/min again, can carry out spraying application after stirring, in construction process, take gradation to spray; The thickness of each spraying is 2mm, sprays 2 times.The same table of the detection method of coal seam frie retardant coating and Interventions Requested, surface drying time, 1.5h; Do solid work the time, 6h; The non-processor tensile strength, 0.9MPa; The non-processor elongation at break, 30%; Water tolerance reaches 20 days; Flame retardant resistance and static resistance meet coal peace standard (MT113-1995), and other performance index are all qualified.
Claims (4)
1. a fire retardant coating for underground coal seam of coal mine is characterized in that component is counted by weight: powder 74～140, polymer emulsion 15～56;
Described powder is counted by weight: cement of high index 30～50, pearlstone 7～10, expanded vermiculite 5～10, silica sand 10～25, Graphite Powder 99 10～15, flyash 0～10, white lake 10～15, Marinco H 2～5.
2. coal seam according to claim 1 frie retardant coating is characterized in that, described polymer emulsion is flexible benzene emulsion, flexible pure-acrylic emulsion or aqueous polyvinyl acetate emulsion.
3. coal seam according to claim 1 frie retardant coating is characterized in that, described cement of high index is above silicate cement of 425# and/or the above high-alumina cement of 425#.
4. the preparation method of fire retardant coating for underground coal seam of coal mine according to claim 1: powder mixes in proportion, separately packing; During use, be 0.2～0.4: 0.15～0.55 in polymer emulsion, water, powder: 1 ratio is mixed polymer emulsion and water earlier, adds powder again, mixes with mortar mixer to get final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102279649A CN101759407B (en) | 2009-12-01 | 2009-12-01 | Fire retardant coating for underground coal seam of coal mine |
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| CN2009102279649A CN101759407B (en) | 2009-12-01 | 2009-12-01 | Fire retardant coating for underground coal seam of coal mine |
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| CN101759407A CN101759407A (en) | 2010-06-30 |
| CN101759407B true CN101759407B (en) | 2012-07-25 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467039A (en) * | 2013-08-30 | 2013-12-25 | 句容联众科技开发有限公司 | Cement-base waterproof coating and preparation method thereof |
| ES2663861T3 (en) * | 2014-03-28 | 2018-04-17 | Akzo Nobel Coatings International B.V. | Composition of fireproof cementitious coating |
| CN104860604A (en) * | 2015-04-23 | 2015-08-26 | 铜陵祥云消防科技有限责任公司 | Anti-corrosion anti-permeability fire-retardant coating |
| CN104830137A (en) * | 2015-04-23 | 2015-08-12 | 铜陵祥云消防科技有限责任公司 | Sound-absorbing and moisture-resistant tunnel fireproof coating and preparation method thereof |
| CN105884294A (en) * | 2015-08-17 | 2016-08-24 | 綦江县科信煤矿安全技术服务有限公司 | Coating for preventing water damage under mine |
| CN105400430A (en) * | 2015-12-14 | 2016-03-16 | 淮南东辰橡塑有限责任公司 | Hydraulic bracket stand column protective sleeve for coal mine |
| CN105602364A (en) * | 2016-03-27 | 2016-05-25 | 张耀忠 | Intumescent fire-retardant coating |
| CN106800838B (en) * | 2017-01-22 | 2020-04-07 | 北京昊天防火材料厂 | Fireproof coating for fireproof dike and construction method thereof |
| CN107986691A (en) * | 2017-12-05 | 2018-05-04 | 中国科学院生态环境研究中心 | The technique that red mud slag prepares vapour barrier |
| CN107954660A (en) * | 2017-12-05 | 2018-04-24 | 中国科学院生态环境研究中心 | A kind of method that Coal Mine Fire material is prepared using industrial solid castoff |
| CN108559339A (en) * | 2018-04-28 | 2018-09-21 | 玉溪大红山矿业有限公司 | A kind of metal mine underworkings spray whiting and preparation method thereof |
| CN112251059A (en) * | 2020-10-20 | 2021-01-22 | 陕西煤业化工技术研究院有限责任公司 | Cement-based spraying material and preparation method and application thereof |
| CN112625645A (en) * | 2020-12-18 | 2021-04-09 | 科建高分子材料（上海）股份有限公司 | Expansion type environment-friendly flame-retardant non-vulcanized silicone rubber |
| CN115678354A (en) * | 2022-11-22 | 2023-02-03 | 南方电网电力科技股份有限公司 | High-volatile raw coal flame retardant and preparation method thereof |
| CN115746599A (en) * | 2022-12-21 | 2023-03-07 | 山西潞安晋安矿业工程有限责任公司 | Bi-component inorganic thin spraying material for coal mine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986715A (en) * | 2005-12-20 | 2007-06-27 | 方兴中 | Fireproof tunnel paint |
| CN101519296A (en) * | 2009-03-30 | 2009-09-02 | 上海英硕聚合物材料有限公司 | Thermal insulation bonding mortar with high bonding strength |
-
2009
- 2009-12-01 CN CN2009102279649A patent/CN101759407B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986715A (en) * | 2005-12-20 | 2007-06-27 | 方兴中 | Fireproof tunnel paint |
| CN101519296A (en) * | 2009-03-30 | 2009-09-02 | 上海英硕聚合物材料有限公司 | Thermal insulation bonding mortar with high bonding strength |
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| CN101759407A (en) | 2010-06-30 |
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