CN102838337B - Desulfurized gypsum based functional mortar for coating and preparation method thereof - Google Patents
Desulfurized gypsum based functional mortar for coating and preparation method thereof Download PDFInfo
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- CN102838337B CN102838337B CN201210321599.XA CN201210321599A CN102838337B CN 102838337 B CN102838337 B CN 102838337B CN 201210321599 A CN201210321599 A CN 201210321599A CN 102838337 B CN102838337 B CN 102838337B
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Abstract
The invention relates to desulfurized gypsum based functional mortar for coating and a preparation method thereof. The desulfurized gypsum based functional mortar for coating comprises the following components in parts by weight: 20-35 parts of desulfurized gypsum, 5-10 parts of S95 superfine slag powder, 50-70 parts of quartz sands, 3-6 parts of kieselguhr, 0.2-0.5 parts of nanometer titanium dioxide, 0.5-1.5 parts of redispersible latex powder, 0.05-0.2 part of cellulose ether, 0-0.2 part of defoaming agent, 0.3-0.8 part of water repellent, 0.5-1.0 part of lithium carbonate early strength agent and 0.02-0.05 part of retarder. The desulfurized gypsum based functional mortar for coating, provided by the invention, has the advantages of good self-purification property, good self-humidifying property, good adhesive property, good construction performance, higher compressive strength and the like, and has good effects of purifying the air and adjusting the humidity when plastering an indoor wall of a building, so that the desulfurized gypsum based functional mortar for coating can be applied for plastering engineering of all kinds of indoor walls of buildings, and a large amount of industrial solid wastes are utilized with lower economic cost, and good environmental-friendly, energy-saving and waste utilization effects.
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 desulfurized gypsum base functional type plastering mortar being composited by desulfurated plaster, slag micropowder, quartz sand, diatomite and nano titanium oxide and chemical additive etc. and preparation method thereof.
Background technology
Along with China's Economic development, the recycling of solid waste more and more comes into one's own.Desulfurated plaster is a kind of solid waste producing in coal fired power plant flue gas desulfurization process, has become the useless waste of second largest solid except flyash; Nearly hundred million tons of wet process of FGD gypsum of the annual generation of China, its storage not only will take a large amount of soils, and contaminate environment and soil.Therefore the utilization of the industrial solid castoff such as desulfurated plaster and research increase just gradually.Chemical composition and the mineral composition of desulfurated plaster are similar to the plaster of paris, to its abundant high-efficiency resource recycling, not only can replace the part plaster of paris, save natural resources, and have good economic benefit, social benefit and environmental benefit.At present, desulfurated plaster is obtaining certain application and research as aspects such as cement setting retarder, gypsum block, plaster of Paris and brushing gypsums, but still has a large amount of desulfurated plasters to need further recycling.
Along with Building Trade in China is flourish, architecture indoor wipes one's face to plaster needs a large amount of mortars, gypsum base mortar is owing to having certain moisture control effect, and be difficult for hollowing and cracking, sound insulation, good heat-insulation effect, be a kind of well architecture indoor plastering mortar, be widely used in architecture indoor wall coating and plastered at western developed country, but be also vulnerable to its time of coagulation of fast, the shortcoming restriction such as intensity is low.
In addition,, along with people's living standard improves, people are more and more higher to the specification of quality of living environment.Architecture indoor Air quality as nuisance content, humiture etc. in air be the important factor that is directly determining habitation environment quality.Construction wall is wiped one's face and plastering material directly contacts with room air, therefore develop and can reduce architecture indoor air nuisance content, and in energy surge chamber, the coating material of humidity environment has certain value and significance to improving IAQ (indoor air quality).
Based on this, the present invention is by scientific research and practice test, the moisture control feature of comprehensive utilization desulfurated plaster, diatomaceous special hole gap structure, strong absorption property and certain damping and air-filtering ability, the photocatalysis characteristic of nanometer anatase titania, and pass through Study on Preparation, successfully work out a kind of wipe one's face desulfurized gypsum base functional type plastering mortar and preparation method thereof of single component of requirement of engineering of architecture indoor that meets, solve the poor and low difficult problem of intensity of water-proof gypsum, and give air-cleaning function and the moisture control ability of gypsum base material excellence, but also fully utilize in a large number industrial solid castoff, there is significant economic benefit, social benefit and environmental benefit.
Summary of the invention
The object of the invention is to; optimize and preparation method's research by proportioning; prepare physical and mechanical property good stable, there is desulfurized gypsum base functional type plastering mortar of good air-filtering ability and moisture control ability and preparation method thereof; and fully utilize in a large number industrial solid castoff; economize on resources and the energy, protection of the environment.
The desulfurized gypsum base functional type plastering mortar that the present invention proposes, its component and parts by weight are: desulfurated plaster: 20-35 part, S95 slag micropowder: 5-10 part, quartz sand: 50-70 part, diatomite: 3-6 part, nano titanium oxide: 0.2-0.5 part, redispersable latex powder: 0.5-1.5 part, ether of cellulose: 0.05-0.2 part, defoamer: 0-0.2 part, hydrophober: 0.3-0.8 part, Quilonum Retard hardening accelerator: 0.5-1.0 part, retardant: 0.02-0.05 part; Its gross weight umber is 100 parts.
In the present invention, described desulfurated plaster is the wet process of FGD gypsum of drying.
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 nano titanium oxide is dichloride in anatase type grade titanium dioxide.
In the present invention, described redispersable latex powder adopts vinyl redispersable latex powder, and ether of cellulose adopts the hydroxyethylmethyl-cellulose of viscosity 10000-70000mPa.s, and defoamer adopts silicone antifoam agent, hydrophober adopts organosilicon moisture repellent, and retardant adopts protein derivatives retardant.
The desulfurized gypsum base functional type plastering mortar that the present invention proposes, utilize in a large number industrial solid castoff, and utilize wood property and the dimensional effect of diatomite and nano titanium oxide bi-material, make it there is good air-filtering ability and moisture control ability, thereby play purify air, the effect of adjusting air humidity, and there is good physical and mechanical property.
The preparation method of the desulfurized gypsum base functional type plastering mortar that the present invention proposes, concrete steps are as follows: after weighing by weight proportion, the high-speed mixer that first utilizes mixing rate to reach 500 ~ 1000r/min mixes diatomite, nano titanium oxide, redispersable latex powder, ether of cellulose, defoamer, hydrophober, hardening accelerator and retardant, then in the mixing machine that is 50-150r/min at mixing rate, said mixture and desulfurated plaster, slag micropowder and quartz sand are mixed together evenly, obtain desired product.
The dry-mixed mortar that desulfurized gypsum base functional type plastering mortar 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 desulfurized gypsum base functional type plastering mortar detected result that the present invention proposes is as shown in table 1.
Table 1 desulfurized gypsum base functional type plastering mortar fundamental property
As can be seen from Table 1, the desulfurized gypsum base functional type plastering mortar that the present invention proposes, its physical and mechanical property is good, meets far away or exceedes relevant criterion requirement; There is good humidity regulation ability, under the dry environment that is 20%RH ~ 60%RH in atmospheric moisture, can make atmospheric moisture increase more than 10%, under the wet environment of atmospheric moisture 60% ~ 90%RH, can make atmospheric moisture reduce by 10% ~ 20%, thereby the atmospheric moisture of guaranteeing environment of living in is in comparatively comfortable scope; There is good air-filtering ability, can fall more than 35% formaldehyde molecule in environment of living in by Adsorption and decomposition, play the effect purifying air, meet the requirement of indoor engineering.
The desulfurized gypsum base functional type plastering mortar that the present invention proposes, can applied range, is applicable to the various architecture indoor engineering of wiping one's face, and especially has the various engineerings of wiping one's face of moisture control and purifying air requirement.The present invention has excellent workability, can the engineering time long, and rapidly, adhesive property is good, saves construction period for the high and development of intensity.
In sum, the each performance index of desulfurized gypsum base functional type plastering mortar that the present invention proposes are good, preparation method is simple and easy to do, product quality is easy to control, workability excellence, atmospheric moisture regulates and air-filtering ability is given prominence to, and is applicable to the various architecture indoor engineering of wiping one's face, and is convenient to large-scale promotion application.
Embodiment
Further illustrate the present invention below by embodiment.
Embodiment 1: the desulfurized gypsum base functional type plastering mortar of wiping one's face for non-moisture chamber, its component and proportioning (weight percent) are: desulfurated plaster: 27.8, S95 slag micropowder: 6, quartz sand: 60, diatomite: 4, nano titanium oxide: 0.3, redispersable latex powder: 0.7, ether of cellulose: 0.1, defoamer: 0.065, hydrophober: 0.4, Quilonum Retard hardening accelerator: 0.6, retardant: 0.035; Its gross weight umber is 100 parts.
The results of property that detection test obtains is as shown in table 2.
The desulfurized gypsum base functional type plastering mortar the performance test results of table 2 embodiment 1
Embodiment 2: can be used for the desulfurized gypsum base functional type plastering mortar that relatively moisture chamber is wiped one's face, its component and proportioning (weight percent) are: desulfurated plaster: 22, S95 slag micropowder: 10, quartz sand: 60, diatomite: 5.1, nano titanium oxide: 0.4, redispersable latex powder: 1.14, ether of cellulose: 0.13, defoamer: 0.1, hydrophober: 0.6, Quilonum Retard hardening accelerator: 0.5, retardant: 0.03; Its gross weight umber is 100 parts.
The results of property that detection test obtains is as shown in table 3.
The desulfurized gypsum base functional type plastering mortar the performance test results of table 3 embodiment 2
From above embodiment, the desulfurized gypsum base functional type plastering mortar 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 architecture indoor engineering materials of wiping one's face, and plays good indoor air purification and moisture control effect, can wide popularization and application in the various architecture indoor engineering of wiping one's face.
Claims (2)
1. a desulfurized gypsum base functional type plastering mortar, it is characterized in that: its component and parts by weight are: desulfurated plaster: 20-35 part, S95 slag micropowder: 5-10 part, quartz sand: 50-70 part, diatomite: 3-6 part, nano titanium oxide: 0.2-0.5 part, redispersable latex powder: 0.5-1.5 part, ether of cellulose: 0.05-0.2 part, defoamer: 0-0.2 part, hydrophober: 0.3-0.8 part, Quilonum Retard hardening accelerator: 0.5-1.0 part, retardant: 0.02-0.05 part; Its gross weight umber is 100 parts;
wherein:described desulfurated plaster is the wet process of FGD gypsum of drying, and described diatomite is below 150 orders and more than 75% diatomite powder of dioxide-containing silica, and described nano titanium oxide is dichloride in anatase type grade titanium dioxide.
2. the preparation method of a desulfurized gypsum base functional type plastering mortar as claimed in claim 1, it is characterized in that concrete steps are: after weighing by weight proportion, the high-speed mixer that first utilizes mixing rate to reach 500 ~ 1000r/min mixes diatomite, nano titanium oxide, redispersable latex powder, ether of cellulose, defoamer, Quilonum Retard hardening accelerator, retardant and hydrophober, then in the mixing machine that is 50-150r/min at mixing rate, said mixture and desulfurated plaster, slag micropowder and quartz sand are mixed together evenly, obtain desired product.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103482946B (en) * | 2013-09-12 | 2015-04-22 | 德高（广州）建材有限公司 | Neutral mosaic adhesive |
| CN103467055A (en) * | 2013-09-12 | 2013-12-25 | 德高（广州）建材有限公司 | Mosaic binding agent integrating two purposes of binding and joint filling |
| CN104098317A (en) * | 2014-07-02 | 2014-10-15 | 上海快刻石膏技术有限公司 | Plaster dry blend and use method thereof |
| CN105400246B (en) * | 2015-12-30 | 2017-07-21 | 泰山石膏股份有限公司 | A kind of environment-friendly type decoration plasterboard and preparation method thereof |
| CN106517879A (en) * | 2016-11-11 | 2017-03-22 | 上海宇培特种建材有限公司 | Gypsum-based dry scraping-wall greasy powder and preparation method thereof |
| CN107775789B (en) * | 2017-11-03 | 2020-06-09 | 钦州学院 | Manufacturing process of high-strength nixing pottery gypsum mold |
| CN108069684A (en) * | 2017-12-28 | 2018-05-25 | 应城市嘉鸿技术服务科技有限公司 | A kind of High-strength environmentally-friefuran plastering gupsum |
| CN109293332A (en) * | 2018-11-27 | 2019-02-01 | 曲靖师范学院 | A kind of diatomite light gypsum mortar |
| CN109437797A (en) * | 2018-12-06 | 2019-03-08 | 曲靖师范学院 | A kind of slag micropowder modified ardealite mortar |
| CN110423083A (en) * | 2019-08-20 | 2019-11-08 | 北京建筑材料科学研究总院有限公司 | A kind of multi-function plaster base mortar and preparation method thereof |
| CN110550926A (en) * | 2019-09-03 | 2019-12-10 | 贵州福泉蓝图住宅产业化有限公司 | Formaldehyde-removing plastering gypsum and preparation method thereof |
| CN110683820A (en) * | 2019-10-30 | 2020-01-14 | 潘如意 | Mortar for prefabricated house exhaust passage |
| CN113912346B (en) * | 2021-10-15 | 2022-08-12 | 河南融之科建材有限公司 | Green environment-friendly plastering dry-mixed mortar and preparation process thereof |
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| CN101386511A (en) * | 2008-10-21 | 2009-03-18 | 武汉理工大学 | Gypsum base hydraulicity building mortar and preparation method thereof |
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| CN101386511A (en) * | 2008-10-21 | 2009-03-18 | 武汉理工大学 | Gypsum base hydraulicity building mortar and preparation method thereof |
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