CN1345901A - Powdered indoor water-resistant putty - Google Patents

Abstract

The present invention discloses a powdered indoor water-proof putty. Its composition includes (wt%) 30% of white cement. 30% of sierozem powder, 20% of calcite powder, 10% of talcium powder, 9.2% of light calcium carbonate, 0.35% of methylcellulose and 0.45% of polyvinyl alcohol. Said invention can eliminate the defects of traditional powder indoor water-proof putty, such as cracking, sagging, scaling and poor erasibility, etc.

Description

Powdered indoor water-resistant putty

The present invention relates to the building coating in a kind of new decorative material for building, particularly relate to a kind of prescription of powdered indoor water-resistant putty composition.

Along with progress of science and technology, people more and more pay attention to the layout and the style in room.And metope has played basic effect in whole decoration link.Especially the promotion and application of coating and paint make the color of metope and texture more and more colourful colorful.But metope must be through certain processing when brushing these decorative materials, and this class is used for the material of interface processing such as wall, top, is commonly called " interfacial agents ", is commonly called as " putty ".

At present, the indoor putty of domestic use mainly contains following three kinds: the one, and the paste product: its Main physical proterties is white pasty state, normally that some are common inorganic material and organic thickening material, sanitas mix formulated, as Korea Spro's home-made " two bear PADECOT putty ".The 2nd, the two-pack product: it mainly forms branch by A, B two, and A is generally aggregate, and B is the material of similar thickening material, water-holding agent, both must be mixed in proportion during use to form, as " the ripe rubber powder of HSD " of Holland's product.The 3rd, at present advanced premix powders: this series products is deployed into powdery in advance, only need add water during use and just can directly use, and is convenient, save time, as " the K28 premixing putty " of Singapore's product.According to regulation in " the building industry industry standard JG/T3049-1998 of the People's Republic of China (PRC) ": be 2 months the storage period of paste putty: double-constituent putty liquid adhesive storage period is 6 months: powdery putty storage period is 12 months.Therefore consider from the economy aspect that powdery putty has bigger advantage equally.

In the application of the putty of metope and the maintenance of metope in the future, what make constructor and owner's headache most mainly is following a few class problem:

Go out present stage	The performance phenomenon	Note
			One, the problem that may occur in the process for preparation	1, configuration proportion should not be grasped	Two-pack is more outstanding
2, storage period shorter, product is perishable	Paste is more outstanding
		Two, the problem that may occur in the construction process		1, irritating smell is arranged	Paste is more outstanding
2, surface drying time is too short, has little time construction	Gypsum base is more outstanding
			3, surface drying time is long, influences construction speed	Material is selected improper causing
4, too thick, the blade coating difficulty
	5, powder phenomenon-tion is arranged, touch with hand and pit can occur		Traditional way is more outstanding
Three, the problem that may occur in moulding and the routine maintenance				1, its colour changed into yellow with the passing of time	Cement composition is too much
	2, cracking, crack performance appear in the interface	Common inorganic materials adds glue or this traditional operation mode of chemical paste is more outstanding
			3, sagging, obscission appear in the flowing water place
	4, scrubbing resistance not, easily dry linting
			5, the interface portion slabbing separates, peels off

The purpose of this invention is to provide and a kind of existing common material is added that current high-tech material by rational proportion and use, alleviates or eliminate the powdered indoor water-resistant putty of above-mentioned these problems one by one.

Technical solution of the present invention is, a kind of powdered indoor water-resistant putty, be made up of white cement, grey calcium powder, calcite in powder, talcum powder, light calcium carbonate, methylcellulose gum and polyvinyl alcohol, the weight percent of each component is: 20-30%: 25-40%: 15-25%: 10-20%: 8-15%: 0.3-0.5%: 0.4-0.6%.

Owing to adopt such scheme, be not difficult to draw as drawing a conclusion, the present invention is skillfully constructed, the characteristics that possessed, generally: 1, nonpoisonous and tasteless, Environmental Safety; 2, easy to use, quality homogeneous; 3, firm, the strong adhesion of intensity; 4, water-alkali resistance, stable performance; 5, feel exquisiteness, good decorative property; 6, price is suitable, time saving and energy saving.Particularly: one, this product cleaning, environmental protection, residuum is pressed household waste and is handled, and not sticking to container, clear water cleans very convenient.Two, the intensity of metope can obviously improve, because this product improved sticking power intensity, surface drying is after repeatedly clean no change, and the solution of water-fast, alkaline-resisting this difficult problem of product does not produce metope and comes off and sagging.After using this product, generally not easy to crack, the be full of cracks of metope is also played and improve opacifying power, enhancing polishing performance and scrub performance simultaneously.Three, feel exquisiteness and good decorative property can replace the use of coating and paint in a way.Can be mixed with multicolour by adding an amount of mineral dye as needs.From economic angle, press 0.5mm blade coating 2 times as usage quantity and calculate, the consumption of estimating every square metre about 1.2 kilograms, its price normally imported product 1/2nd.Four, this product is applicable to following different basal planes: 1, concrete wall and roof; 2, plasterboard; 3, brick wall; 4, mortar metope; 5, glued board; 6, woven wire styrofoam.This product detects through Shanghai City material of construction and component quality supervision and inspection station: 1, condition in container is not for there being caking, even; 2, application property is that blade coating is accessible; 3, time of drying (surface drying), h is 4; 4, grinability, % are 30; 5, water tolerance (48h) is no abnormal; 6, alkali resistance (24h) is no abnormal; 7, cohesive strength, Mpa is in standard state: be 0.63; 8, cohesive strength, Mpa is after immersion: be 0.31; 9, low tempertaure storage stability is at-5 ℃ of freezing 4h no changes, and blade coating does not have difficulty.At today that scientific and technological content, environmental requirement, the use properties of product are paid attention to by increasing developer and user, a kind of really high-tech green product of this product with extensive market outlook.

Below by a preferred embodiment the present invention is described in further detail.

Get the Tylose board of 30 grams, 300 purpose white cements, the grey calcium powder of 30 grams, 325 purposes, 20 grams, 325 purpose calcite in powder, 10 grams, 325 purpose talcum powder, 9.2 grams, 325 purpose light calcium carbonates, the German Clariant of 0.35 gram company product, viscosity is 60001, the Mortarplus board that the methylcellulose gum of dimethyl hydroxyethyl fine powder and the German Clariant of 0.45 gram company produce, viscosity is 2400, and sequence number is the polyvinyl alcohol of 88 fine powder.Above-mentioned material adopts mixing and blending machine, gets final product in mechanical stirring 6-8 minute in accordance with regulations.Wherein, the effect of white cement in product is the raising that promotes product strength and fastness, can decline to a great extent if add the intensity and the fastness of very few product, too much understands yellowing; The ash effect of calcium powder in product is natural inorganic binding agent preferably, is difficult for jaundice, if it is not enough to add very few cohesive strength, too much the workability of product reduces; The effect of calcite in powder in product is that proportion is bigger, and cost is lower, is high quality filler, improves if add very few cost, and too much cohesive strength is poor; The effect of talcum powder in product is to increase the feel slippery, improves workability, if the very few operation easier of adding is big, too much easily produces powder phenomenon-tion; The effect of light calcium carbonate in product is mineral binder bond preferably, and proportion is less, if add very few easy generation powder phenomenon-tion, too much global density is too high, is difficult for abundant aquation; The effect of methylcellulose gum in product is good water-retentivity, thickening property and plasticity, if add very few differences in viscosity, excessive cost improves; The effect of polyvinyl alcohol in product is to improve dispersiveness, workability and splitting resistance, if add very few poor flexibility, excessive cost improves.

This product is when concrete the use, only need pour container according to quantity into, press water ash about 1 to 4, pour cleaning water into, need not to add other auxiliary material, by hand or the mechanical stirring instrument stirred 2-5 minute, and then left standstill 10 minutes, fully act as thick pasty state, stirred once more before the use 2 minutes, with batch embedding instrument, criticize 1-2 time by the thickness of 0.5 millimeter, synthetic material can use in 2-3 hour at every turn, wait the metope surface drying after, polish as the available fine sandpaper of needs, residuum is pressed household waste and is handled.

Claims (2)

1, a kind of powdered indoor water-resistant putty, be made up of white cement, grey calcium powder, calcite in powder, talcum powder, light calcium carbonate, methylcellulose gum and polyvinyl alcohol, the weight percent of each component is: 20-30%: 25-40%: 15-25%: 10-20%: 8-15%: 0.3-0.5%: 0.4-0.6%.

2, by the described a kind of powdered indoor water-resistant putty of claim 1, the weight percent of its each component white cement, grey calcium powder, calcite in powder, talcum powder, light calcium carbonate, methylcellulose gum and polyvinyl alcohol is: 30%: 30%: 20%: 10%: 9.2%: 0.35%: 0.45%.