CN102838330A - 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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- CN102838330A CN102838330A CN2012103216210A CN201210321621A CN102838330A CN 102838330 A CN102838330 A CN 102838330A CN 2012103216210 A CN2012103216210 A CN 2012103216210A CN 201210321621 A CN201210321621 A CN 201210321621A CN 102838330 A CN102838330 A CN 102838330A
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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, and building trade is flourish; As emerging construction wall finishing material, the cement based finishing material is for example compared with organic coating owing to have plurality of advantages and characteristics; It is good that it has the air-and water-permeable performance; Good with the materials for wall suitability, bonding is durable, ageing-resistant, color is characteristics such as fugitive color not; Compare with ceramic tile, have in light weight, construction advantage such as convenient, especially be applicable to the facing decoration of wall thermal insulating system, can significantly reduce the load of wall insulation system, during as the Highrise buildings exterior finish, can avoid because of bearing ceramic tile that blast the occurs phenomenon that drops; Be applied to the surface-veneer engineered of construction wall just gradually.At western developed country, the cement based finishing material extensively replaces coating and ceramic tile to be applied to the building masonry wall decoration.
Though the cement based finishing material has above advantage, also there are some shortcomings, for example be vulnerable to dust contamination in the air, the surface is prone to scum etc., influences its attractive, decorative effect.
Based on this, the present invention through utilize the characteristic of differing materials, prepare have can the automatically cleaning self-purification the cement based finishing material, solve the cement based finishing material and be subject to that dust stains and the difficult problem of scum.And on this basis, in conjunction with the strong characterization of adsorption of zeyssatite and zeolite and the photocatalysis characteristic of nanometer anatase titania, give the cement based finishing material and have good formaldehyde adsorptive power, play the effect of purifying the air of a room.
Summary of the invention
The objective of the invention is to; Through proportioning optimization and preparing method's research; A kind of automatically cleaning self-purification cement based finishing material and preparation method thereof is provided, is applicable to the facing decoration of building inside and outside wall body, play good building decorative effect and the effect that purifies air.
The automatically cleaning self-purification cement based finishing material that the present invention proposes, the parts by weight of each component are following:
White portland cement: 20-30 part,
Mineral admixture: 5-10 part,
20-30 order silica sand: 0-20 part,
40-70 order silica sand: 20-30 part,
70-100 order silica sand: 20-30 part,
Zeyssatite: 1-4 part,
Zeolite: 2-4 part,
Nano titanium oxide: 0.2-0.6 part,
The EVA redispersable latex powder: 0.5-2.0 part,
Organosilicon moisture repellent 0.2-0.8 part,
The iron oxides mineral dye: 0-1 part,
Other chemicaladditives: 0.1-0.7 part,
Its gross weight umber is 100 parts.
Among the present invention, said mineral admixture be in S95 level slag micropowder or the metakaolin more than one.
Among the present invention, said zeyssatite is below 150 orders and the diatomite powder of dioxide-containing silica more than 75%.
Among the present invention, said zeolite is the zeolite powder below 150 orders.
Among the present invention, said nano titanium oxide is the dichloride in anatase type grade titanium dioxide.
Among the present invention, hydroxyethylmethyl-cellulose and skimmer that said other chemicaladditives is viscosity 10000 ~ 45000mPa.s are 0.1-0.7 part by other chemicaladditives add-on in the raw material, and the hydroxyethylmethyl-cellulose volume is 0.1-0.3 part; The skimmer volume is 0-0.4 part.
The automatically cleaning self-purification cement based finishing material that the present invention proposes; Utilize zeyssatite and zeolite to have characteristics such as porosity is big, absorptivity is strong, chemical property is stable; And diatomaceous dehumidifying, formaldehyde effect such as adsorb, purify the air of a room, wood property and dimensional effects thereof such as dichloride in anatase type grade titanium dioxide excellent photocatalytic performance and automatically cleaning effect reach good automatically cleaning self-purification performance; The surface has the high dirt resistance ability; And can purify the air of a room, and have good physical and mechanical property, satisfy the building inside and outside wall body 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 following: by weight proportion after the weighing; Utilize the high-speed mixer of mixing rate 500 ~ 1000r/min that zeyssatite, zeolite, nano titanium oxide, EVA redispersable latex powder, organosilicon moisture repellent, other chemicaladditivess, iron oxides mineral dye are mixed earlier; In mixing rate is the mixing machine of 80-250r/min, be mixed together said mixture and white portland cement, silica sand and mineral admixture evenly then, promptly get desired product.
Automatically cleaning self-purification cement based finishing material finished product of the present invention is the powder body material of single component, only needs during construction at the construction field (site) itself and water to be pressed to certainty ratio stirring 2 ~ 3min, 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
Can find out by table 1, the automatically cleaning self-purification cement based finishing material that the present invention proposes, its physical and mechanical property is good; Anti-accumulation of salt in the surface soil property with have excellent weather resistance, contamination resistance can be excellent, has good automatically cleaning ability; Satisfy far away or surpass the relevant criterion requirement, and have good formaldehyde removal effect, the formaldehyde clearance surpasses 30%; Not only satisfy of the requirement of outdoor architecture body of wall facing decoration engineering, and satisfy the requirement of interior architecture body of wall facing decoration engineering the cement based facing mortar.
The automatically cleaning self-purification cement based finishing material that the present invention proposes; But applied range; Be applicable to various architecture indoor exterior wall dignity layer decorative engineering, especially high exterior wall finish engineering and indoor wall facing decorative engineering to finishing material automatically cleaning Capability Requirement.The present invention has excellent workability, but the engineering time is long, and it is convenient to construct, and intensity is high and development is rapid, saves construction period, and cohesive strength is high, excellent in durability, and rich color, decorative effect is various.
In sum, each performance index of automatically cleaning self-purification cement based finishing material that the present invention proposes are good, and the preparation method is simple and easy to do; Product quality is easy to control, and workability is excellent, excellent in durability; Automatically cleaning self-purification performance is outstanding; And have certain purifying formaldehyde effect, and be applicable to the outer body of wall engineering of various architecture indoor, be convenient to large-scale promotion application.
Embodiment
Further specify the present invention through embodiment below.
Embodiment 1: be used for the automatically cleaning self-purification cement based finishing material that the external wall surface layer is decorated, its component and proportioning (weight percent) are: white portland cement: 26, mineral admixture: 7,20-30 order silica sand: 10,40-70 order silica sand: 25,70-100 order silica sand: 24, zeyssatite: 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 chemicaladditivess 0.4.The results of property that the 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 |
| Dry splitting resistance of initial stage | 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 |
| Anti-accumulation of salt in the surface soil property | There are not 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 grade) |
| Formaldehyde removal effect * * | Well (clearance 38%) |
Embodiment 2: be used 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 silica sand: 6,40-70 order silica sand: 25,70-100 order silica sand: 28, zeyssatite: 4, zeolite: 3, nano titanium oxide: 0.5, EVA redispersable latex powder: 0.7, organosilicon moisture repellent 0.3, yellow oxide of iron mineral dye: 0.2, other chemicaladditivess 0.3.The results of property that the 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 |
| Dry splitting resistance of initial stage | 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 |
| Anti-accumulation of salt in the surface soil property | There are not 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 grade) |
| Formaldehyde removal effect * * | Well (clearance 56%) |
The automatically cleaning self-purification cement based finishing material visible by above embodiment, that the present invention proposes can make corresponding product according to the requirement of construction work.Each item performance index all satisfy or surpass relevant criterion and engine request; Can be used as architecture indoor exterior wall body piercing face engineering materials; Especially for automatically cleaning self-purification performance and the demanding engineering of formaldehyde adsorption property, can wide popularization and application in various architecture indoor exterior wall body piercing face engineerings.
The above-mentioned description to embodiment is can understand and use the present invention for ease of the those of ordinary skill of this technical field.The personnel of skilled obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art all should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (7)
1. automatically cleaning self-purification cement based finishing material is characterized in that the parts by weight of each component are following:
White portland cement: 20-30 part,
Mineral admixture: 5-10 part,
20-30 order silica sand: 0-20 part,
40-70 order silica sand: 20-30 part,
70-100 order silica sand: 20-30 part,
Zeyssatite: 1-4 part,
Zeolite: 2-4 part,
Nano titanium oxide: 0.2-0.6 part,
The EVA redispersable latex powder: 0.5-2.0 part,
Organosilicon moisture repellent: 0.2-0.8 part,
The iron oxides mineral dye: 0-1 part,
Other chemicaladditives 0.1-0.7 part,
Its gross weight umber is 100 parts.
2. automatically cleaning self-purification cement based finishing material according to claim 1 is characterized in that: said mineral admixture be in S95 slag micropowder or the metakaolin more than one.
3. automatically cleaning self-purification cement based finishing material according to claim 1 is characterized in that: said zeyssatite is below 150 orders and the diatomite powder of dioxide-containing silica more than 75%.
4. automatically cleaning self-purification cement based finishing material according to claim 1 is characterized in that: said zeolite is the zeolite powder below 150 orders.
5. automatically cleaning self-purification cement based finishing material according to claim 1, it is characterized in that: said nano titanium oxide is the dichloride in anatase type grade titanium dioxide.
6. automatically cleaning self-purification cement based finishing material according to claim 1; It is characterized in that: said other chemicaladditives is ether of cellulose and skimmer; Wherein ether of cellulose is the hydroxyethylmethyl-cellulose of viscosity 10000 ~ 45000mPa.s; Be 0.1-0.7 part by other chemicaladditives add-ons in the raw material, the hydroxyethylmethyl-cellulose volume is 0.1-0.3 part; The skimmer volume is 0-0.4 part.
7. 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 following: by weight proportion after the weighing; Utilize the high-speed mixer of mixing rate 500 ~ 1000r/min that zeyssatite, zeolite, nano titanium oxide, EVA redispersable latex powder, organosilicon moisture repellent, other chemicaladditives, iron oxides mineral dye are mixed earlier; In mixing rate is the mixing machine of 80-250r/min, be mixed together said mixture and white portland cement, silica sand and mineral admixture evenly then, promptly get desired product.
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| CN110713360B (en) * | 2019-11-15 | 2021-04-09 | 广东盖特奇新材料科技有限公司 | Self-cleaning outdoor artificial stone slab and preparation method thereof |
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