CN112897966B - Calcium carbonate-based inorganic coating and preparation and use methods thereof - Google Patents
Calcium carbonate-based inorganic coating and preparation and use methods thereof Download PDFInfo
- Publication number
- CN112897966B CN112897966B CN202110166883.3A CN202110166883A CN112897966B CN 112897966 B CN112897966 B CN 112897966B CN 202110166883 A CN202110166883 A CN 202110166883A CN 112897966 B CN112897966 B CN 112897966B
- Authority
- CN
- China
- Prior art keywords
- calcium carbonate
- parts
- inorganic coating
- based inorganic
- carbonization
- 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.)
- Active
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 122
- 238000000576 coating method Methods 0.000 title claims abstract description 87
- 239000011248 coating agent Substances 0.000 title claims abstract description 70
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000839 emulsion Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000003763 carbonization Methods 0.000 claims abstract description 29
- 229920005646 polycarboxylate Polymers 0.000 claims abstract description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- 239000003623 enhancer Substances 0.000 claims abstract description 10
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 34
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 16
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000292 calcium oxide Substances 0.000 claims description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 14
- 229920001661 Chitosan Polymers 0.000 claims description 13
- 229910021487 silica fume Inorganic materials 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 2
- FZVXUPLDQNBUQZ-UHFFFAOYSA-N [Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])([O-])O[Si]([O-])([O-])[O-] Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])([O-])O[Si]([O-])([O-])[O-] FZVXUPLDQNBUQZ-UHFFFAOYSA-N 0.000 claims description 2
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000012241 calcium silicate Nutrition 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- ARHMMDOXGIIARL-UHFFFAOYSA-N calcium;dihydroxy(dioxido)silane Chemical compound [Ca+2].O[Si](O)([O-])[O-] ARHMMDOXGIIARL-UHFFFAOYSA-N 0.000 claims description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000008030 superplasticizer Substances 0.000 description 11
- 239000003822 epoxy resin Substances 0.000 description 10
- 229920000647 polyepoxide Polymers 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 230000015271 coagulation Effects 0.000 description 7
- 238000005345 coagulation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000004062 sedimentation Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- FYHXNYLLNIKZMR-UHFFFAOYSA-N calcium;carbonic acid Chemical compound [Ca].OC(O)=O FYHXNYLLNIKZMR-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- -1 quartz stone powder Chemical compound 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006196 deacetylation Effects 0.000 description 1
- 238000003381 deacetylation reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
-
- 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
- C04B2111/00508—Cement paints
-
- 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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
本发明公开一种碳酸钙基无机涂料及其制备和使用方法。该碳酸钙基无机涂料，由以下重量份的原料组成：碳化胶凝材料60～80份、聚羧酸减水剂1.5～2份、无机纳米分散剂5～10份、聚合物乳液1.6～2.4份、碳化增强剂1～1.2份、稳定剂0.3～0.5份和水24～28份。本发明的制备方法简单、所需原料种类少、成本低、固化时间短，制备过程能够同时固化二氧化碳，符合如今社会的绿色节能减排理念；本发明提供的碳酸钙基无机涂料耐老化、耐腐蚀、耐高温性能优异，可作为海洋等严酷服役环境下钢结构或钢筋混凝土等结构材料的表面防腐。
The invention discloses a calcium carbonate-based inorganic coating and its preparation and use methods. The calcium carbonate-based inorganic coating is composed of the following raw materials in parts by weight: 60-80 parts of carbonized cementitious material, 1.5-2 parts of polycarboxylate water-reducing agent, 5-10 parts of inorganic nano-dispersant, and 1.6-2.4 parts of polymer emulsion parts, 1-1.2 parts of carbonization enhancer, 0.3-0.5 parts of stabilizer and 24-28 parts of water. The preparation method of the invention is simple, requires few kinds of raw materials, low cost and short curing time, and the preparation process can simultaneously cure carbon dioxide, which conforms to the concept of green energy conservation and emission reduction in today's society; It has excellent corrosion and high temperature resistance performance, and can be used as surface anti-corrosion of structural materials such as steel structures or reinforced concrete in harsh service environments such as oceans.
Description
技术领域technical field
本发明涉及涂料技术领域，尤其涉及一种碳酸钙基无机涂料及其制备和使用方法。The invention relates to the technical field of coatings, in particular to a calcium carbonate-based inorganic coating and a preparation and use method thereof.
背景技术Background technique
海洋环境因含有大量盐类物质，对钢结构、混凝土等海洋工程材料有着严重的腐蚀作用，海洋腐蚀占总腐蚀的1/3左右。2018年海工混凝土腐蚀破坏造成损失约2000亿。Because the marine environment contains a large amount of salt substances, it has a serious corrosive effect on marine engineering materials such as steel structures and concrete, and marine corrosion accounts for about 1/3 of the total corrosion. In 2018, the corrosion damage of marine concrete caused losses of about 200 billion.
防腐涂料通过均匀涂覆在被防护体表面形成致密防护层以阻止环境侵蚀介质的进入而达到保护材料免遭腐蚀。防腐涂料主要分为有机涂料和无机涂料两类。有机涂料在生产和应用过程中会释放出部分组分，对环境和人体产生一定危害，且有机涂料的耐高温和老化性能普遍不良。针对以上问题，一些硅酸盐和磷酸盐无机涂料相继得到发展。但上述两种无机涂料普遍需在高温条件下完全固化，对被防护层的抗腐蚀性产生不良影响，同时限制了其应用范围。近年虽有开发的常温固化的硅酸盐和磷酸盐无机涂料，但制备工序复杂、固化时间长。The anti-corrosion coating can protect the material from corrosion by uniformly coating the surface of the protected body to form a dense protective layer to prevent the entry of environmental corrosive media. Anti-corrosion coatings are mainly divided into two categories: organic coatings and inorganic coatings. In the process of production and application, organic coatings will release some components, which will cause certain harm to the environment and human body, and the high temperature resistance and aging performance of organic coatings are generally poor. In response to the above problems, some silicate and phosphate inorganic coatings have been developed one after another. However, the above two inorganic coatings generally need to be fully cured under high temperature conditions, which will have a negative impact on the corrosion resistance of the protected layer and limit their application scope. In recent years, there have been developed silicate and phosphate inorganic coatings cured at room temperature, but the preparation process is complicated and the curing time is long.
发明内容SUMMARY OF THE INVENTION
有鉴于此，有必要提供一种碳酸钙基无机涂料及其制备和使用方法，用以解决现有技术中常温固化体系的无机涂料制备工序复杂、固化时间长的技术问题。In view of this, it is necessary to provide a calcium carbonate-based inorganic coating and a preparation and use method thereof, in order to solve the technical problems of complicated preparation process and long curing time of the inorganic coating of the normal temperature curing system in the prior art.
本发明的第一方面提供一种碳酸钙基无机涂料，由以下重量份的原料组成：碳化胶凝材料60～80份、聚羧酸减水剂1.5～2份、无机纳米分散剂5～10份、聚合物乳液1.6～2.4份、碳化增强剂1～1.2份、稳定剂0.3～0.5份和水24～28份。A first aspect of the present invention provides a calcium carbonate-based inorganic coating, which is composed of the following raw materials in parts by weight: 60-80 parts of carbonized cementitious material, 1.5-2 parts of polycarboxylate water-reducing agent, and 5-10 parts of inorganic nano-dispersant. parts, 1.6-2.4 parts of polymer emulsion, 1-1.2 parts of carbonization enhancer, 0.3-0.5 parts of stabilizer and 24-28 parts of water.
本发明的第二方面提供一种碳酸钙基无机涂料的制备方法，包括如下步骤：A second aspect of the present invention provides a method for preparing a calcium carbonate-based inorganic coating, comprising the steps of:
S1：将聚羧酸减水剂、碳化增强剂和水配制成溶液；S1: prepare a solution of polycarboxylate water reducer, carbonization enhancer and water;
S2：向碳化胶凝材料中加入无机纳米分散剂、稳定剂和上述溶液并搅拌，随后加入聚合物乳液，继续搅拌均匀，得到碳酸钙基无机涂料。S2: adding an inorganic nano dispersant, a stabilizer and the above solution to the carbonized gelling material and stirring, then adding a polymer emulsion, and continuing to stir evenly to obtain a calcium carbonate-based inorganic coating.
本发明第二方面提供的碳酸钙基无机涂料的制备方法用于得到本发明第一方面提供的碳酸钙基无机涂料。The preparation method of the calcium carbonate-based inorganic coating provided by the second aspect of the present invention is used to obtain the calcium carbonate-based inorganic coating provided by the first aspect of the present invention.
本发明的第三方面提供一种碳酸钙基无机涂料的使用方法，包括如下步骤：A third aspect of the present invention provides a method for using calcium carbonate-based inorganic paint, comprising the steps of:
将本发明第一方面提供的碳酸钙基无机涂料涂覆在基体表面，随后通过碳化养护在基体表面形成碳酸钙基无机涂层。The calcium carbonate-based inorganic coating provided by the first aspect of the present invention is coated on the surface of the substrate, and then the calcium carbonate-based inorganic coating is formed on the surface of the substrate through carbonization curing.
与现有技术相比，本发明的有益效果为：Compared with the prior art, the beneficial effects of the present invention are:
本发明的制备方法简单、所需原料种类少、成本低、固化时间短，制备过程能够同时固化二氧化碳，符合如今社会的绿色节能减排理念；The preparation method of the invention is simple, requires few kinds of raw materials, low cost and short curing time, and the preparation process can simultaneously solidify carbon dioxide, which conforms to the concept of green energy saving and emission reduction in today's society;
本发明提供的碳酸钙基无机涂料耐老化、耐腐蚀、耐高温性能优异，可作为海洋等严酷服役环境下钢结构或钢筋混凝土等结构材料的表面防腐。The calcium carbonate-based inorganic coating provided by the invention has excellent aging resistance, corrosion resistance and high temperature resistance, and can be used as the surface anticorrosion of structural materials such as steel structures or reinforced concrete in severe service environments such as oceans.
附图说明Description of drawings
图1是本发明实施例1所得碳酸钙基无机涂料在25℃下测得的不同静置时间后浆体流变曲线。Fig. 1 is the slurry rheology curve of the calcium carbonate-based inorganic coating obtained in Example 1 of the present invention measured at 25° C. after different standing times.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
本发明的第一方面提供一种碳酸钙基无机涂料，由以下重量份的原料组成：碳化胶凝材料60～80份、聚羧酸减水剂1.5～2份、无机纳米分散剂5～10份、聚合物乳液1.6～2.4份、碳化增强剂1～1.2份、稳定剂0.3～0.5份和水24～28份。A first aspect of the present invention provides a calcium carbonate-based inorganic coating, which is composed of the following raw materials in parts by weight: 60-80 parts of carbonized cementitious material, 1.5-2 parts of polycarboxylate water-reducing agent, and 5-10 parts of inorganic nano-dispersant. parts, 1.6-2.4 parts of polymer emulsion, 1-1.2 parts of carbonization enhancer, 0.3-0.5 parts of stabilizer and 24-28 parts of water.
根据本发明，上述碳化胶凝材料为γ型硅酸二钙、硅酸一钙、二硅酸三钙、钢渣中的一种或多种；优选地，上述碳化胶凝材料为γ-C2S。本发明通过选用上述具有较低水化活性、较高的碳化活性的碳化胶凝材料作为无机涂料的主要组分，能够使所得无机涂料涂覆于基底表面后能够通过碳化过程快速形成具有较高强度的涂层。同时，本发明的体系中各原料组成水化活性极低，在不通二氧化碳的情况下材料不会硬化，有利于长时间存储。According to the present invention, the above-mentioned carbonized cementitious material is one or more of γ-type dicalcium silicate, monocalcium silicate, tricalcium disilicate, and steel slag; preferably, the above-mentioned carbonized cementitious material is γ-C 2 S. In the present invention, by selecting the above-mentioned carbonized cementitious material with lower hydration activity and higher carbonization activity as the main component of the inorganic coating, the obtained inorganic coating can be quickly formed through the carbonization process after being coated on the surface of the substrate. Strong coating. At the same time, the hydration activity of each raw material composition in the system of the present invention is extremely low, and the material will not be hardened under the condition that carbon dioxide is not passed through, which is favorable for long-term storage.
进一步地，选用的γ-C2S为粒径分布在0.5～100μm的粉末，表观密度为2.8～3.0g/cm3。更进一步地，γ-C2S由钙质原料、硅质原料高温烧结制成。其中，钙质原料为氢氧化钙、碳酸钙或富含氢氧化钙、碳酸钙的原料(如电石渣、石灰石粉、硫脲渣、单氰胺渣等)，硅质原料为二氧化硅或富含二氧化硅的原料(如石英石粉、砂岩、石英砂尾矿、黄金尾矿等)，将钙质原料与硅质原料按当量氧化钙：二氧化硅的摩尔比2：1混合后加水搅拌均匀并干燥，随后在1300～1400℃的温度烧结而成。Further, the selected γ-C 2 S is a powder with a particle size distribution of 0.5-100 μm and an apparent density of 2.8-3.0 g/cm 3 . Furthermore, γ-C 2 S is made by sintering calcium raw materials and siliceous raw materials at high temperature. Among them, the calcareous raw materials are calcium hydroxide, calcium carbonate or raw materials rich in calcium hydroxide and calcium carbonate (such as calcium carbide slag, limestone powder, thiourea slag, cyanamide slag, etc.), and the siliceous raw material is silicon dioxide or For raw materials rich in silica (such as quartz stone powder, sandstone, quartz sand tailings, gold tailings, etc.), mix calcareous raw materials and siliceous raw materials according to the equivalent molar ratio of calcium oxide:silicon dioxide 2:1 and then add water Stir well and dry, and then sinter at a temperature of 1300-1400 °C.
本发明中，通过加入聚羧酸减水剂，能够使其吸附在颗粒表面，通过电荷互斥和空间位阻复合效应防止颗粒团聚，提高分散性能。进一步地，选用的聚羧酸减水剂的减水率为25～35％。In the present invention, by adding the polycarboxylate water reducing agent, it can be adsorbed on the surface of the particles, and the agglomeration of the particles can be prevented through the composite effect of mutual charge repulsion and steric hindrance, and the dispersion performance can be improved. Further, the water reducing rate of the selected polycarboxylate water reducing agent is 25-35%.
根据本发明，上述无机纳米分散剂为硅灰和纳米碳酸钙中的一种或两种。本发明中通过加入无机纳米分散剂，能够提高浆体的流动性，减少水的用量，从而提高喷涂的流畅性和涂层的整体强度。进一步地，选用的硅灰中SiO2含量90～98％，比表面积20000～25000m2/kg；选用的纳米碳酸钙的粒径为0.01～0.1μm。According to the present invention, the above-mentioned inorganic nano dispersant is one or both of silica fume and nano calcium carbonate. In the present invention, by adding an inorganic nano dispersant, the fluidity of the slurry can be improved and the amount of water used can be reduced, thereby improving the smoothness of spraying and the overall strength of the coating. Further, the SiO 2 content in the selected silica fume is 90-98%, the specific surface area is 20,000-25,000 m 2 /kg; the particle size of the selected nano-calcium carbonate is 0.01-0.1 μm.
本发明中，通过将聚羧酸减水剂和无机纳米分散剂复配，能够充分发挥其协同作用，调控涂层浆体的粘度，并提升涂层综合性能。In the present invention, by compounding the polycarboxylate water reducing agent and the inorganic nano dispersing agent, the synergistic effect thereof can be fully exerted, the viscosity of the coating slurry can be regulated, and the comprehensive performance of the coating can be improved.
根据本发明，上述聚合物乳液为环氧树脂改性苯丙乳液和苯丙乳液中的一种或两种。进一步地，上述聚合物乳液的固含量为30～60％。本发明中通过加入环氧树脂改性苯丙乳液和苯丙乳液作为聚合物乳液，能够起到减小孔隙率和防水的作用，使得涂层的整体防腐蚀性能得到进一步的提升。但是其加入量不宜过多也不宜过少，若加入量过少将导致防腐蚀效果差；若加入量过多将导致不利于碳化，涂层综合性能差。According to the present invention, the above-mentioned polymer emulsion is one or both of epoxy resin modified styrene-acrylic emulsion and styrene-acrylic emulsion. Further, the solid content of the polymer emulsion is 30-60%. In the present invention, the epoxy resin modified styrene-acrylic emulsion and the styrene-acrylic emulsion are added as the polymer emulsion, which can reduce the porosity and waterproof, so that the overall anti-corrosion performance of the coating can be further improved. However, the addition amount should not be too much or too little. If the addition amount is too small, the anti-corrosion effect will be poor; if the addition amount is too large, it will be unfavorable for carbonization and the overall performance of the coating will be poor.
根据本发明，上述碳化增强剂为聚乙烯醇和壳聚糖中的一种或两种。本发明中通过加入碳化增强剂能够提高碳化胶凝材料在碳化过程中的钙离子溶出，增加碳化程度，从而增强碳化强度并提高涂层综合性能。进一步地，壳聚糖的粒度为100目～130目，灰分＜0.5％，水分＜0.5％，脱乙酰度大于90％。According to the present invention, the above-mentioned carbonization enhancer is one or both of polyvinyl alcohol and chitosan. In the present invention, by adding a carbonization enhancer, the calcium ion dissolution of the carbonized cementitious material in the carbonization process can be improved, and the carbonization degree can be increased, thereby enhancing the carbonization strength and improving the comprehensive performance of the coating. Further, the particle size of the chitosan is 100 meshes to 130 meshes, the ash content is less than 0.5%, the moisture content is less than 0.5%, and the degree of deacetylation is greater than 90%.
根据本发明，上述稳定剂为氧化钙。本发明中，通过加入氧化钙作为稳定剂，能够使浆体假凝，防止浆体沉降，同时能使浆体经长时间存储后在较低的剪切力的作用下即可恢复黏度，有利于长时间存储。According to the present invention, the above-mentioned stabilizer is calcium oxide. In the present invention, by adding calcium oxide as a stabilizer, the slurry can be pseudo-coagulated to prevent the slurry from settling, and at the same time, the viscosity of the slurry can be recovered under the action of a relatively low shear force after being stored for a long time. Good for long-term storage.
本发明的第二方面提供一种碳酸钙基无机涂料的制备方法，包括如下步骤：A second aspect of the present invention provides a method for preparing a calcium carbonate-based inorganic coating, comprising the steps of:
S1：将聚羧酸减水剂、碳化增强剂和水配制成溶液；S1: prepare a solution of polycarboxylate water reducer, carbonization enhancer and water;
S2：向碳化胶凝材料中加入无机纳米分散剂、稳定剂和上述溶液并搅拌，随后加入聚合物乳液，继续搅拌均匀，得到碳酸钙基无机涂料。S2: adding an inorganic nano dispersant, a stabilizer and the above solution to the carbonized gelling material and stirring, then adding a polymer emulsion, and continuing to stir evenly to obtain a calcium carbonate-based inorganic coating.
本发明第二方面提供的碳酸钙基无机涂料的制备方法用于得到本发明第一方面提供的碳酸钙基无机涂料。The preparation method of the calcium carbonate-based inorganic coating provided by the second aspect of the present invention is used to obtain the calcium carbonate-based inorganic coating provided by the first aspect of the present invention.
本发明中，需严格控制各组分的加料顺序，避免直接混料后浆体分散效果差，影响涂层性能。In the present invention, it is necessary to strictly control the feeding sequence of each component, so as to avoid poor dispersion effect of the slurry after direct mixing and affect the performance of the coating.
根据本发明，上述步骤S2中，两步搅拌工艺的搅拌速度为100～150r/min，搅拌时间为30～60s。在该条件下，能使固体颗粒充分分散并与液体充分混合。According to the present invention, in the above step S2, the stirring speed of the two-step stirring process is 100-150 r/min, and the stirring time is 30-60 s. Under these conditions, the solid particles can be sufficiently dispersed and mixed with the liquid.
本发明的第三方面提供一种碳酸钙基无机涂料的使用方法，包括如下步骤：A third aspect of the present invention provides a method for using calcium carbonate-based inorganic paint, comprising the steps of:
将本发明第一方面提供的碳酸钙基无机涂料涂覆在基体表面，随后通过碳化养护在基体表面形成碳酸钙基无机涂层。The calcium carbonate-based inorganic coating provided by the first aspect of the present invention is coated on the surface of the substrate, and then the calcium carbonate-based inorganic coating is formed on the surface of the substrate through carbonization curing.
根据本发明，涂覆过程可采用喷涂、浸涂、刷涂的方式进行；优选为通过高压喷射的方式进行。According to the present invention, the coating process can be carried out by spraying, dipping, or brushing; preferably, it is carried out by high-pressure spraying.
根据本发明，上述碳化养护的条件为：碳化温度为5～40℃，相对湿度10～60％，二氧化碳体积浓度70～99.8％，气压为0.2～0.4MPa，养护时间为6～12h。According to the present invention, the above carbonization curing conditions are as follows: the carbonization temperature is 5-40°C, the relative humidity is 10-60%, the carbon dioxide volume concentration is 70-99.8%, the air pressure is 0.2-0.4MPa, and the curing time is 6-12h.
本发明中，上述基体为混凝土、木材和金属中的一种或多种，具体为钢板。In the present invention, the above-mentioned substrate is one or more of concrete, wood and metal, and is specifically a steel plate.
为避免赘述，本发明以下各实施例和对比例中，部分原料总结如下：In order to avoid repetition, in the following examples and comparative examples of the present invention, some raw materials are summarized as follows:
γ-C2S由摩尔比为2：1的氢氧化钙和二氧化硅混合后，加入与氢氧化钙和二氧化硅混合物等质量的水继续混合后在1400℃下烧结3h而成。γ-C 2 S is formed by mixing calcium hydroxide and silicon dioxide with a molar ratio of 2:1, adding water of the same quality as the mixture of calcium hydroxide and silicon dioxide, and sintering at 1400° C. for 3 hours.
食品级壳聚糖：来自恒台县金湖甲壳制品有限公司；苯丙乳液：湛新viscopol6191；环氧树脂改性苯丙乳液：郑州森杰化工13-689；聚乙烯醇：聚乙烯醇1788，化学分析纯；聚羧酸高效减水剂：来自华新水泥。Food grade chitosan: from Hengtai County Jinhu Shell Products Co., Ltd.; Styrene-acrylic emulsion: allnex viscopol6191; epoxy resin-modified styrene-acrylic emulsion: Zhengzhou Senjie Chemical 13-689; , chemical analysis pure; polycarboxylate superplasticizer: from Huaxin Cement.
实施例1Example 1
本实施例提供了一种碳酸钙基无机涂料，通过以下步骤得到：The present embodiment provides a calcium carbonate-based inorganic coating, obtained through the following steps:
(1)将1.5g聚羧酸高效减水剂、1.04g壳聚糖和26g水配制成溶液；(1) 1.5g polycarboxylate superplasticizer, 1.04g chitosan and 26g water are prepared into a solution;
(2)将7.5g硅灰、0.38g氧化钙和配制好的溶液加入到60g的γ-C2S中并搅拌均匀，随后加入2g环氧树脂改性苯丙乳液，继续搅拌均匀，得到碳酸钙基无机涂料。其中，搅拌速度为100r/min，搅拌时间为30s。(2) Add 7.5g of silica fume, 0.38g of calcium oxide and the prepared solution to 60g of γ-C 2 S and stir evenly, then add 2g of epoxy resin modified styrene-acrylic emulsion, and continue to stir to obtain carbonic acid Calcium based inorganic coatings. Among them, the stirring speed is 100r/min, and the stirring time is 30s.
本实施例还提供了一种碳酸钙基无机涂料的使用方法，包括以下步骤：The present embodiment also provides a method for using calcium carbonate-based inorganic coating, comprising the following steps:
将上述无机涂料通过高压喷射的方式均匀涂覆在基体表面，随后在二氧化碳气氛下养护，在基体表面形成碳酸钙基无机涂层。其中，碳化环境气压为0.2MPa，气体浓度99％，养护时间12h，温度25℃，相对湿度60％。The above inorganic coating is uniformly coated on the surface of the substrate by means of high-pressure spraying, and then cured in a carbon dioxide atmosphere to form a calcium carbonate-based inorganic coating on the surface of the substrate. Among them, the carbonization environment pressure is 0.2MPa, the gas concentration is 99%, the curing time is 12h, the temperature is 25°C, and the relative humidity is 60%.
实施例2Example 2
本实施例提供了一种碳酸钙基无机涂料，通过以下步骤得到：The present embodiment provides a calcium carbonate-based inorganic coating, obtained through the following steps:
(1)将1.5g聚羧酸高效减水剂、1.04g壳聚糖和26g水配制成溶液；(1) 1.5g polycarboxylate superplasticizer, 1.04g chitosan and 26g water are prepared into a solution;
(2)将7.5g硅灰、0.38g氧化钙和配制好的溶液加入到60g的γ-C2S中并搅拌均匀，随后加入2g苯丙乳液，继续搅拌，得到碳酸钙基无机涂料。其中，搅拌速度为100r/min，搅拌时间为30s。(2) 7.5g of silica fume, 0.38g of calcium oxide and the prepared solution were added into 60g of γ-C 2 S and stirred evenly, then 2g of styrene-acrylic emulsion was added, and the stirring was continued to obtain calcium carbonate-based inorganic coating. Among them, the stirring speed is 100r/min, and the stirring time is 30s.
本实施例还提供了一种碳酸钙基无机涂料的使用方法，包括以下步骤：The present embodiment also provides a method for using calcium carbonate-based inorganic coating, comprising the following steps:
将上述无机涂料通过高压喷射的方式均匀涂覆在基体表面，随后在二氧化碳气氛下养护，在基体表面形成碳酸钙基无机涂层。其中，碳化环境气压为0.2MPa，气体浓度99％，养护时间12h，温度25℃，相对湿度60％。The above inorganic coating is uniformly coated on the surface of the substrate by means of high-pressure spraying, and then cured in a carbon dioxide atmosphere to form a calcium carbonate-based inorganic coating on the surface of the substrate. Among them, the carbonization environment pressure is 0.2MPa, the gas concentration is 99%, the curing time is 12h, the temperature is 25°C, and the relative humidity is 60%.
实施例3Example 3
本实施例提供了一种碳酸钙基无机涂料，通过以下步骤得到：The present embodiment provides a calcium carbonate-based inorganic coating, obtained through the following steps:
(1)将2g聚羧酸高效减水剂、1g聚乙烯醇和24g水配制成溶液；(1) 2g polycarboxylate superplasticizer, 1g polyvinyl alcohol and 24g water are mixed into solution;
(2)将5g纳米碳酸钙、0.3g氧化钙和配制好的溶液加入到62g的γ-C2S中并搅拌均匀，随后加入1.6g环氧树脂改性苯丙乳液，继续搅拌，得到碳酸钙基无机涂料。其中，搅拌速度为150r/min，搅拌时间为60s。(2) 5g of nano calcium carbonate, 0.3g of calcium oxide and the prepared solution were added to 62g of γ-C 2 S and stirred evenly, then 1.6g of epoxy resin modified styrene-acrylic emulsion was added, and the stirring was continued to obtain carbonic acid Calcium based inorganic coatings. Among them, the stirring speed is 150r/min, and the stirring time is 60s.
本实施例还提供了一种碳酸钙基无机涂料的使用方法，包括以下步骤：The present embodiment also provides a method for using calcium carbonate-based inorganic coating, comprising the following steps:
将上述无机涂料通过高压喷射的方式均匀涂覆在基体表面，随后在二氧化碳气氛下养护，在基体表面形成碳酸钙基无机涂层。其中，碳化环境气压为0.3MPa，气体浓度70％，养护时间8h，温度5℃，相对湿度10％。The above inorganic coating is uniformly coated on the surface of the substrate by means of high-pressure spraying, and then cured in a carbon dioxide atmosphere to form a calcium carbonate-based inorganic coating on the surface of the substrate. Among them, the carbonization environment pressure is 0.3MPa, the gas concentration is 70%, the curing time is 8h, the temperature is 5°C, and the relative humidity is 10%.
实施例4Example 4
本实施例提供了一种碳酸钙基无机涂料，通过以下步骤得到：The present embodiment provides a calcium carbonate-based inorganic coating, obtained through the following steps:
(1)将2g聚羧酸高效减水剂、1.2g壳聚糖和28g水配制成溶液；(1) 2g polycarboxylate superplasticizer, 1.2g chitosan and 28g water are prepared into a solution;
(2)将10g硅灰、0.5g氧化钙和配制好的溶液加入到80g的γ-C2S中并搅拌均匀，随后加入2.4g苯丙乳液，继续搅拌，得到碳酸钙基无机涂料。其中，搅拌速度为120r/min，搅拌时间为45s。(2) 10g of silica fume, 0.5g of calcium oxide and the prepared solution were added to 80g of γ-C 2 S and stirred evenly, then 2.4g of styrene-acrylic emulsion was added, and the stirring was continued to obtain a calcium carbonate-based inorganic coating. Among them, the stirring speed is 120r/min, and the stirring time is 45s.
本实施例还提供了一种碳酸钙基无机涂料的使用方法，包括以下步骤：The present embodiment also provides a method for using calcium carbonate-based inorganic coating, comprising the following steps:
将上述无机涂料通过高压喷射的方式均匀涂覆在基体表面，随后在二氧化碳气氛下养护，在基体表面形成碳酸钙基无机涂层。其中，碳化环境气压为0.4MPa，气体浓度80％，养护时间6h，温度40℃，相对湿度40％。The above inorganic coating is uniformly coated on the surface of the substrate by means of high-pressure spraying, and then cured in a carbon dioxide atmosphere to form a calcium carbonate-based inorganic coating on the surface of the substrate. Among them, the carbonization environment pressure is 0.4MPa, the gas concentration is 80%, the curing time is 6h, the temperature is 40°C, and the relative humidity is 40%.
对比例1Comparative Example 1
对比例1与实施例1的区别仅在于，对比例1中未加入聚合物乳液，所得碳酸钙基无机涂料的具体组成如下：The difference between Comparative Example 1 and Example 1 is only that the polymer emulsion is not added in Comparative Example 1, and the specific composition of the obtained calcium carbonate-based inorganic coating is as follows:
γ-C2S 60g、聚羧酸高效减水剂1.5g、硅灰7.5g、壳聚糖1.04g、氧化钙0.38g、水26g。γ-C 2 S 60g, polycarboxylate superplasticizer 1.5g, silica fume 7.5g, chitosan 1.04g, calcium oxide 0.38g, water 26g.
对比例2Comparative Example 2
对比例2与实施例1的区别仅在于，对比例2中未加入碳化增强剂，所得碳酸钙基无机涂料的具体组成如下：The difference between Comparative Example 2 and Example 1 is only that no carbonization reinforcing agent is added in Comparative Example 2, and the specific composition of the gained calcium carbonate-based inorganic coating is as follows:
γ-C2S 60g、聚羧酸高效减水剂1.5g、硅灰7.5g、环氧树脂改性苯丙乳液2g、氧化钙0.38g、水26g。γ-C 2 S 60g, polycarboxylate superplasticizer 1.5g, silica fume 7.5g, epoxy resin modified styrene-acrylic emulsion 2g, calcium oxide 0.38g, water 26g.
对比例3Comparative Example 3
对比例3与实施例1的区别仅在于，对比例3中未加入聚羧酸减水剂，所得碳酸钙基无机涂料的具体组成如下：The difference between Comparative Example 3 and Example 1 is only that the polycarboxylate water-reducing agent is not added in Comparative Example 3, and the specific composition of the gained calcium carbonate-based inorganic coating is as follows:
γ-C2S 60g、硅灰9g、环氧树脂改性苯丙乳液2g、壳聚糖1.04g、氧化钙0.38g、水26g。60 g of γ-C 2 S, 9 g of silica fume, 2 g of epoxy resin modified styrene-acrylic emulsion, 1.04 g of chitosan, 0.38 g of calcium oxide, and 26 g of water.
对比例4Comparative Example 4
对比例4与实施例1的区别仅在于，对比例4中未加入无机纳米分散剂，所得碳酸钙基无机涂料的具体组成如下：The difference between Comparative Example 4 and Example 1 is only that the inorganic nano-dispersant is not added in Comparative Example 4, and the specific composition of the obtained calcium carbonate-based inorganic coating is as follows:
γ-C2S 60g、聚羧酸高效减水剂9g、环氧树脂改性苯丙乳液2g、壳聚糖1.04g、氧化钙0.38g、水26g。γ-C 2 S 60g, polycarboxylate superplasticizer 9g, epoxy resin modified styrene-acrylic emulsion 2g, chitosan 1.04g, calcium oxide 0.38g, water 26g.
对比例5Comparative Example 5
对比例5与实施例1的区别仅在于，对比例5中未加入稳定剂，所得碳酸钙基无机涂料的具体组成如下：The difference between Comparative Example 5 and Example 1 is only that no stabilizer is added in Comparative Example 5, and the specific composition of the gained calcium carbonate-based inorganic coating is as follows:
γ-C2S 60g、聚羧酸高效减水剂1.5g、硅灰7.5g、环氧树脂改性苯丙乳液2g、壳聚糖1.04g、水26g。γ-C 2 S 60g, polycarboxylate superplasticizer 1.5g, silica fume 7.5g, epoxy resin modified styrene-acrylic emulsion 2g, chitosan 1.04g, water 26g.
对比例6Comparative Example 6
对比例6与实施例1的区别仅在于，对比例6中加入较多的聚合物乳液，所得碳酸钙基无机涂料的具体组成如下：The difference between Comparative Example 6 and Example 1 is only that in Comparative Example 6, more polymer emulsions are added, and the specific composition of the gained calcium carbonate-based inorganic coating is as follows:
γ-C2S 60g、聚羧酸高效减水剂1.5g、硅灰7.5g、环氧树脂改性苯丙乳液2.6g、壳聚糖1.04g、氧化钙0.38g、水26g。γ-C 2 S 60g, polycarboxylate superplasticizer 1.5g, silica fume 7.5g, epoxy resin modified styrene-acrylic emulsion 2.6g, chitosan 1.04g, calcium oxide 0.38g, water 26g.
对比例7Comparative Example 7
对比例7与实施例1的区别仅在于，碳化环境气压为0.1MPa。The only difference between Comparative Example 7 and Example 1 is that the carbonization ambient air pressure is 0.1 MPa.
对比例8Comparative Example 8
对比例8与实施例1的区别仅在于，碳酸钙基无机涂料的制备过程中，直接将γ-C2S 60g、聚羧酸高效减水剂1.5g、硅灰7.5g、环氧树脂改性苯丙乳液2g、壳聚糖1.04g、氧化钙0.38g、水26g混合搅拌5min。The only difference between Comparative Example 8 and Example 1 is that in the preparation process of the calcium carbonate-based inorganic coating, 60 g of γ-C 2 S, 1.5 g of polycarboxylate superplasticizer, 7.5 g of silica fume, and epoxy resin were directly modified. 2 g of styrene-acrylic emulsion, 1.04 g of chitosan, 0.38 g of calcium oxide, and 26 g of water were mixed and stirred for 5 min.
试验组1
对上述实施例1～4、对比例1～6和对比例8所得涂料进行性能测试，结果见图1和表1；其中，通过流变仪测试流变性能；通过观察涂料静置30天后浆体状态确定其常温存储稳定性。The properties of the coatings obtained in the above-mentioned Examples 1 to 4, Comparative Examples 1 to 6 and Comparative Example 8 were tested, and the results are shown in Figure 1 and Table 1; wherein, the rheological properties were tested by a rheometer; The bulk state determines its storage stability at room temperature.
表1Table 1
由图1可以看出，静置240h后流变曲线基本保持不变，说明所得碳酸钙基无机涂料具有良好的稳定性，浆体可长时间存储。It can be seen from Figure 1 that the rheological curve remains basically unchanged after standing for 240h, indicating that the obtained calcium carbonate-based inorganic coating has good stability, and the slurry can be stored for a long time.
通过表1还可以看出，本发明实施例1～4所得涂料静置30天后假凝且不发生沉降，使用时可在较低的剪切力作用下恢复黏度，说明所得涂料储存稳定性好。It can also be seen from Table 1 that the coatings obtained in Examples 1 to 4 of the present invention are pseudo-coagulated and do not settle after standing for 30 days, and the viscosity can be recovered under lower shear force during use, indicating that the obtained coatings have good storage stability. .
试验组2Test group 2
对上述实施例1～4、对比例1～2和对比例4～8形成的涂层进行性能试验，结果见表2，测试标准如下：A performance test was carried out on the coatings formed by the above-mentioned Examples 1 to 4, Comparative Examples 1 to 2 and Comparative Examples 4 to 8. The results are shown in Table 2, and the test standards are as follows:
附着力测试：GB-T9286-1998；Adhesion test: GB-T9286-1998;
硬度测试：GB-T6739-2006；Hardness test: GB-T6739-2006;
紫外老化试验：GB-T14522-2008；UV aging test: GB-T14522-2008;
盐雾试验：GB-T1771-2007；Salt spray test: GB-T1771-2007;
耐热性：GB-T1735-2009。Heat resistance: GB-T1735-2009.
表2Table 2
由表2可以看出，本发明实施例1～4形成的涂层具有较高的附着力、硬度以及良好的耐老化、耐热、耐腐蚀性能。It can be seen from Table 2 that the coatings formed in Examples 1 to 4 of the present invention have higher adhesion, hardness and good aging resistance, heat resistance and corrosion resistance.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110166883.3A CN112897966B (en) | 2021-02-04 | 2021-02-04 | Calcium carbonate-based inorganic coating and preparation and use methods thereof |
| NL2030769A NL2030769B1 (en) | 2021-02-04 | 2022-01-28 | Calcium carbonate based inorganic coating, preparation method and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110166883.3A CN112897966B (en) | 2021-02-04 | 2021-02-04 | Calcium carbonate-based inorganic coating and preparation and use methods thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112897966A CN112897966A (en) | 2021-06-04 |
| CN112897966B true CN112897966B (en) | 2022-07-12 |
Family
ID=76123561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110166883.3A Active CN112897966B (en) | 2021-02-04 | 2021-02-04 | Calcium carbonate-based inorganic coating and preparation and use methods thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112897966B (en) |
| NL (1) | NL2030769B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402243A (en) * | 2021-06-23 | 2021-09-17 | 武汉理工大学 | Method for improving durability of concrete product by using carbonized coating |
| CN113880466B (en) * | 2021-11-04 | 2022-10-21 | 山东汉博昱洲新材料有限公司 | Method for preparing high-carbonization-activity cementing material by using industrial waste residues |
| CN114605875B (en) * | 2022-03-30 | 2023-01-10 | 武汉理工大学 | A double-layer organic-inorganic composite building energy-saving coating material and its preparation method |
| CN114656811B (en) * | 2022-04-12 | 2023-03-14 | 武汉理工大学 | Fireproof heat-preservation heat-insulation inorganic coating material and preparation method thereof |
| CN115490468A (en) * | 2022-10-14 | 2022-12-20 | 山东京韵泰博新材料科技有限公司 | Protective coating for building, protection method and application |
| CN116285449B (en) * | 2023-02-22 | 2024-03-22 | 中交第一航务工程局有限公司 | High-strength high-durability coating and preparation method thereof |
| CN116891647B (en) * | 2023-07-27 | 2024-10-18 | 武汉理工大学 | Inorganic coating based on calcium silicate and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006232602A (en) * | 2005-02-24 | 2006-09-07 | Denki Kagaku Kogyo Kk | Surface coating material and preventive maintenance method using the same |
| CN109824321A (en) * | 2019-03-14 | 2019-05-31 | 东南大学 | A kind of carbon dioxide curing prefabricated pervious concrete and preparation method thereof |
| CN110156383A (en) * | 2019-04-30 | 2019-08-23 | 中建材中岩科技有限公司 | A kind of micro-nano crystallization renovation agent of distress in concrete and preparation method thereof |
| CN110922107A (en) * | 2019-11-22 | 2020-03-27 | 武汉理工大学 | Color carbide hardened material and preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4320182B2 (en) * | 2002-05-07 | 2009-08-26 | 積水化学工業株式会社 | Carbonated cured body and method for producing the same |
-
2021
- 2021-02-04 CN CN202110166883.3A patent/CN112897966B/en active Active
-
2022
- 2022-01-28 NL NL2030769A patent/NL2030769B1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006232602A (en) * | 2005-02-24 | 2006-09-07 | Denki Kagaku Kogyo Kk | Surface coating material and preventive maintenance method using the same |
| CN109824321A (en) * | 2019-03-14 | 2019-05-31 | 东南大学 | A kind of carbon dioxide curing prefabricated pervious concrete and preparation method thereof |
| CN110156383A (en) * | 2019-04-30 | 2019-08-23 | 中建材中岩科技有限公司 | A kind of micro-nano crystallization renovation agent of distress in concrete and preparation method thereof |
| CN110922107A (en) * | 2019-11-22 | 2020-03-27 | 武汉理工大学 | Color carbide hardened material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112897966A (en) | 2021-06-04 |
| NL2030769B1 (en) | 2022-10-10 |
| NL2030769A (en) | 2022-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112897966B (en) | Calcium carbonate-based inorganic coating and preparation and use methods thereof | |
| CN110746165A (en) | Ocean engineering repair mortar and preparation method thereof | |
| CN106587831B (en) | A kind of superhigh-lift pumping maritime concrete and preparation method thereof | |
| CN111333403B (en) | Preparation method and application of magnesium phosphate-based cement concrete coating protective material | |
| CN113998960B (en) | Modified micro-nano composite superfine admixture high-durability anti-crack concrete and preparation method thereof | |
| CN110041035B (en) | C30 high-impermeability concrete with low consumption of rubber materials and preparation method thereof | |
| CN102745928A (en) | High-activity modified metakaolin-based mineral admixture for concrete and preparation method for mineral admixture | |
| CN108821716A (en) | A kind of ardealite base anticracking grout for wall insulation system | |
| CN108328977B (en) | Concrete repairing material | |
| CN108585714A (en) | It is a kind of using ardealite base hydraulicity composite gel material as the boundary mortar of agglutination material | |
| CN111499249A (en) | An admixture for improving the impermeability of marine concrete and slowing down the corrosion of steel bars and its preparation method and application | |
| CN110759699A (en) | A kind of bottom plastering plaster and preparation method thereof | |
| CN110451840B (en) | Composite type compacting agent | |
| CN115490470A (en) | High-performance concrete with large-doping-amount undisturbed red mud and preparation process thereof | |
| CN110950566B (en) | A kind of high corrosion resistance submicron composite material and its application | |
| CN116874255A (en) | Early-strength hydrated calcium silicate seed crystal reinforced epoxy composite cement grouting material and preparation method thereof | |
| CN113321464B (en) | Anti-corrosion waterproof cement-based grouting material and preparation method thereof | |
| CN104556944A (en) | Concrete protecting sol | |
| CN114685075B (en) | Composite modified nano-alumina sol, preparation method thereof and application thereof in sulfur-free and alkali-free setting accelerator | |
| CN109279846B (en) | A kind of high impermeability concrete and preparation method thereof | |
| CN115260814A (en) | A kind of modified cement-based coating material and preparation method and application thereof | |
| CN112479610A (en) | Low-heat corrosion-resistant portland cement and preparation method thereof | |
| CN116425563B (en) | Bauxite tailing-based foam light soil and preparation method thereof | |
| CN106608721B (en) | A kind of anti-corrosion mortar for transmission line tower foundation | |
| CN114262194B (en) | High-temperature-resistant large-flow-state low-loss cement-based grouting material 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 |