CN102838330B - Self-clean self-purification cement-based facing material and production method thereof - Google Patents
Self-clean self-purification cement-based facing material and production method thereof Download PDFInfo
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- CN102838330B CN102838330B CN201210321621.0A CN201210321621A CN102838330B CN 102838330 B CN102838330 B CN 102838330B CN 201210321621 A CN201210321621 A CN 201210321621A CN 102838330 B CN102838330 B CN 102838330B
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Abstract
The invention relates to a self-clean self-purification cement-based facing material and a production method thereof. The self-clean self-purification cement-based facing material comprises the following components in parts by weight: 20-30 parts of white silicate cements, 5-10 parts of mineral admixtures, 0-20 parts of quartz sands of 20-30 meshes, 20-30 parts of quartz sands of 40-70 meshes, 20-30 parts of quartz sands of 70-100 meshes, 1-4 parts of kieselguhr, 2-4 parts of zeolite, 0.2-0.6 part of nanometer titanium dioxide, 0.5-2.0 parts of EVA redispersible latex powder, 0.2-0.8 part of organic silicon water repellent, 0-1 part of ferric oxide inorganic pigment and 0.1-0.7 part of other chemical additive. The self-clean self-purification cement-based facing material, provided by the invention, has the advantages of good self-clean property, good self-purification property, good air purification capacity, good adhesive property, good construction property, good endurance quality, higher compression strength and the like, when the self-clean self-purification cement-based facing material is used for decoration of facings of an inner wall space and an outer wall space of a building, the air purification effect and the decoration effect are good, and the self-clean self-purification cement-based facing material can be applied for decoration engineering of all kinds of facings of walls of buildings.
Description
Technical field
The invention belongs to building material technical field, also relate to technical field of function materials, be specifically related to a kind of automatically cleaning self-purification cement based finishing material and preparation method thereof.
Background technology
Along with China's Economic development, people's living standard improves, building trade is flourish, as emerging construction wall finishing material, cement based finishing material for example, owing to having plurality of advantages and feature, compared with organic coating, it is good that it has air-and water-permeable performance, good with materials for wall suitability, bond durablely, ageing-resistant, color is the feature such as fugitive color not; Compared with ceramic tile, there is lightweight, the advantage such as convenient of constructing, be especially applicable to the facing decoration of wall thermal insulating system, can significantly reduce the load of wall insulation system, during as Highrise buildings exterior finish, can avoid because of the ceramic tile that negative blast the occurs phenomenon that drops; Be applied to just gradually the surface-veneer engineered of construction wall.At western developed country, cement based finishing material extensively replaces coating and ceramic tile to be applied to building masonry wall decoration.
Although cement based finishing material has above advantage, also there are some shortcomings, be for example vulnerable to dust in air and stain, the easy scum in surface etc., affect its attractive, decorative effect.
Based on this, the present invention by utilize the characteristic of differing materials, prepare have can automatically cleaning self-purification cement based finishing material, solve cement based finishing material and be subject to that dust stains and a difficult problem for scum.And on this basis, in conjunction with the strong characterization of adsorption of diatomite and zeolite and the photocatalysis characteristic of nanometer anatase titania, give cement based finishing material and there is good formaldehyde absorbing ability, play the effect of purifying the air of a room.
Summary of the invention
The object of the invention is to, optimize and preparation method's research by proportioning, a kind of automatically cleaning self-purification cement based finishing material and preparation method thereof is provided, is applicable to the facing decoration of Discussion on architecture body of wall, play good building decorative effect and the effect purifying air.
The automatically cleaning self-purification cement based finishing material that the present invention proposes, the parts by weight of each component are as follows:
White portland cement: 20-30 part,
Mineral admixture: 5-10 part,
20-30 order quartz sand: 0-20 part,
40-70 order quartz sand: 20-30 part,
70-100 order quartz sand: 20-30 part,
Diatomite: 1-4 part,
Zeolite: 2-4 part,
Nano titanium oxide: 0.2-0.6 part,
EVA redispersable latex powder: 0.5-2.0 part,
Organosilicon moisture repellent 0.2-0.8 part,
Iron oxides mineral dye: 0-1 part,
Other chemical additive: 0.1-0.7 part,
Its gross weight umber is 100 parts.
In the present invention, described mineral admixture be in S95 level slag micropowder or metakaolin more than one.
In the present invention, described diatomite is below 150 orders and more than 75% diatomite powder of dioxide-containing silica.
In the present invention, described zeolite is the zeolite powder below 150 orders.
In the present invention, described nano titanium oxide is dichloride in anatase type grade titanium dioxide.
In the present invention, hydroxyethylmethyl-cellulose and defoamer that described other chemical additive is viscosity 10000 ~ 45000mPa.s, be 0.1-0.7 part by other chemical additive add-on in raw material, and hydroxyethylmethyl-cellulose volume is 0.1-0.3 part; Defoamer volume is 0-0.4 part.
The automatically cleaning self-purification cement based finishing material that the present invention proposes, utilize diatomite and zeolite to there is porosity large, absorptivity is strong, the features such as stable chemical nature, and diatomaceous dehumidifying, formaldehyde absorbing, the effect such as purify the air of a room, the wood property such as photocatalysis performance and self_cleaning effect and dimensional effect thereof that dichloride in anatase type grade titanium dioxide is good, reach good automatically cleaning self-purification performance, surface has high dirt resistance ability, and can purify the air of a room, and there is good physical and mechanical property, meet Discussion on architecture body of wall to the requirement of cement based finishing material.
The preparation method of the automatically cleaning self-purification cement based finishing material that the present invention proposes, concrete steps are as follows: after weighing by weight proportion, first utilize the high-speed mixer of mixing rate 500 ~ 1000r/min that diatomite, zeolite, nano titanium oxide, EVA redispersable latex powder, organosilicon moisture repellent, other chemical additives, iron oxides mineral dye are mixed, then in the mixing machine that is 80-250r/min at mixing rate, said mixture and white portland cement, quartz sand and mineral admixture are mixed together evenly, obtain desired product.
The powder body material that automatically cleaning self-purification cement based finishing material finished product of the present invention is single component, only need press itself and water to certainty ratio stirring 2 ~ 3min when construction at the construction field (site), can use.
The automatically cleaning self-purification cement based finishing material detected result that the present invention proposes is as shown in table 1.
Table 1 automatically cleaning self-purification cement based finishing material the performance test results
As can be seen from Table 1, the automatically cleaning self-purification cement based finishing material that the present invention proposes, its physical and mechanical property is good, alkali burnout resistance and having excellent weather resistance, stain resistant performance excellence, there is good automatically cleaning ability, meet far away or exceed relevant criterion requirement, and having good formaldehyde removal effect, formaldehyde clearance exceedes 30%, not only meet the requirement of outdoor architecture body of wall facing decoration engineering to cement-based finishing mortar, and meet the requirement of interior architecture body of wall facing decoration engineering.
The automatically cleaning self-purification cement based finishing material that the present invention proposes, can applied range, be applicable to various architecture indoor exterior wall facing decoration engineerings, especially to the high exterior wall finish engineering of finishing material automatically cleaning Capability Requirement and indoor wall facing decorative engineering.The present invention has excellent workability, can the engineering time long, constructs convenient, and the high and development of intensity rapidly, save construction period, and cohesive strength is high, excellent in durability, and rich color, decorative effect is various.
In sum, the each performance index of automatically cleaning self-purification cement based finishing material that the present invention proposes are good, preparation method is simple and easy to do, product quality is easy to control, workability excellence, excellent in durability, automatically cleaning self-purification performance is outstanding, and there is certain purifying formaldehyde effect, and be applicable to various architecture indoor exterior wall engineerings, be convenient to large-scale promotion application.
Embodiment
Further illustrate the present invention below by embodiment.
Embodiment 1: the automatically cleaning self-purification cement based finishing material of decorating for external wall surface layer, its component and proportioning (weight percent) are: white portland cement: 26, mineral admixture: 7,20-30 order quartz sand: 10,40-70 order quartz sand: 25,70-100 order quartz sand: 24, diatomite: 2.8, zeolite: 2, nano titanium oxide: 0.5, EVA redispersable latex powder: 1.5, organosilicon moisture repellent 0.5, red iron oxide mineral dye: 0.3, other chemical additives 0.4.The results of property that detection test obtains is as shown in table 2.
The automatically cleaning self-purification cement based finishing material the performance test results of table 2 embodiment 1
| Project | Measured performance |
| Operable time | 3h |
| Initial dry cracking resistance | Flawless |
| 30min water regain/g | 0.4 |
| 240min water regain/g | 1.2 |
| Folding strength/MPa | 4.4 |
| Ultimate compression strength/MPa | 12.8 |
| Tensile bond strength/MPa | 1.3 |
| Alkali burnout resistance | Without the visible accumulation of salt in the surface soil, not dry linting |
| Contamination resistance (white or light color) | 0 grade |
| Weathering resistance (750h) | 1500h(1 level) |
| Formaldehyde removal effect * * | Well (clearance 38%) |
Embodiment 2: for the automatically cleaning self-purification cement based finishing material of building inside and outside wall facing decoration, its component and proportioning (weight percent) are: white portland cement: 22, mineral admixture: 10,20-30 order quartz sand: 6,40-70 order quartz sand: 25,70-100 order quartz sand: 28, diatomite: 4, zeolite: 3, nano titanium oxide: 0.5, EVA redispersable latex powder: 0.7, organosilicon moisture repellent 0.3, iron oxide yellow mineral dye: 0.2, other chemical additives 0.3.The results of property that detection test obtains is as shown in table 3.
The automatically cleaning self-purification cement based finishing material the performance test results of table 3 embodiment 2
| Project | Measured performance |
| Operable time | 2.5h |
| Initial dry cracking resistance | Flawless |
| 30min water regain/g | 0.6 |
| 240min water regain/g | 1.6 |
| Folding strength/MPa | 4.0 |
| Ultimate compression strength/MPa | 10.8 |
| Tensile bond strength/MPa | 1.0 |
| Alkali burnout resistance | Without the visible accumulation of salt in the surface soil, not dry linting |
| Contamination resistance (white or light color) | 0 grade |
| Weathering resistance (750h) | 1500h(1 level) |
| Formaldehyde removal effect * * | Well (clearance 56%) |
From above embodiment, the automatically cleaning self-purification cement based finishing material that the present invention proposes, can, according to the requirement of construction work, make corresponding product.Property indices all meets or exceedes relevant criterion and engine request, can be used as the surface-veneer engineered material of architecture indoor exterior wall, especially require high engineering for automatically cleaning self-purification performance and formaldehyde adsorption property, can wide popularization and application surface-veneer engineered in various architecture indoor exterior walls.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various amendments to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and the improvement of making for the present invention and amendment all should be within protection scope of the present invention.
Claims (6)
1. an automatically cleaning self-purification cement based finishing material, is characterized in that the parts by weight of each component are as follows:
White portland cement: 20-30 part,
Mineral admixture: 5-10 part,
20-30 order quartz sand: 0-20 part,
40-70 order quartz sand: 20-30 part,
70-100 order quartz sand: 20-30 part,
Diatomite: 1-4 part,
Zeolite: 2-4 part,
Nano titanium oxide: 0.2-0.6 part,
EVA redispersable latex powder: 0.5-2.0 part,
Organosilicon moisture repellent: 0.2-0.8 part,
Iron oxides mineral dye: 0-1 part,
Other chemical additive 0.1-0.7 part,
Its gross weight umber is 100 parts;
Wherein: described other chemical additive is ether of cellulose and defoamer, wherein ether of cellulose is the hydroxyethylmethyl-cellulose of viscosity 10000 ~ 45000mPa.s, be 0.1-0.7 part by other chemical additive add-ons in raw material, hydroxyethylmethyl-cellulose volume is 0.1-0.3 part; Defoamer volume is 0-0.4 part.
2. automatically cleaning self-purification cement based finishing material according to claim 1, is characterized in that: described mineral admixture be in S95 slag micropowder or metakaolin any.
3. automatically cleaning self-purification cement based finishing material according to claim 1, is characterized in that: described diatomite is below 150 orders and more than 75% diatomite powder of dioxide-containing silica.
4. automatically cleaning self-purification cement based finishing material according to claim 1, is characterized in that: described zeolite is the zeolite powder below 150 orders.
5. automatically cleaning self-purification cement based finishing material according to claim 1, is characterized in that: described nano titanium oxide is dichloride in anatase type grade titanium dioxide.
6. the preparation method of an automatically cleaning self-purification cement based finishing material as claimed in claim 1, it is characterized in that concrete steps are as follows: after weighing by weight proportion, first utilize the high-speed mixer of mixing rate 500 ~ 1000r/min by diatomite, zeolite, nano titanium oxide, EVA redispersable latex powder, organosilicon moisture repellent, other chemical additive, iron oxides mineral dye mixes, then in the mixing machine that is 80-250r/min at mixing rate said mixture and white portland cement, quartz sand and mineral admixture are mixed together evenly, obtain desired product, wherein: described other chemical additive is ether of cellulose and defoamer.
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| CN114016687A (en) * | 2021-11-16 | 2022-02-08 | 绍兴职业技术学院 | Wall material capable of removing formaldehyde and preparation method thereof |
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| CN101318796A (en) * | 2008-07-04 | 2008-12-10 | 浙江中联建设集团有限公司 | Nano-additive agent modified high-strength wall self-thermal insulation material and preparing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101318796A (en) * | 2008-07-04 | 2008-12-10 | 浙江中联建设集团有限公司 | Nano-additive agent modified high-strength wall self-thermal insulation material and preparing method thereof |
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