CN1109488A - Water-based cement paint and preparation method thereof - Google Patents

Abstract

The invention discloses a water-based paint containing emulsified acrylic acid Ester resins, pigments, dispersants, tackifiers, mold inhibitors, plasticizers and water wait. The paint is high in quality and low in price, diverse in color, bright in luster, washable, Alkali resistance, easy construction, can be used to decorate cement walls, asbestos boards, gypsum boards, etc. building materials. The paint is rich in texture, strong in three-dimensional pattern, and has mutual reflection. The excellent optical effect gives people a harmonious, elegant, comfortable and bright enjoyment.

Description

Water cement lacquer and its preparing method

The present invention relates to finishing material, particularly a kind of coating.

Along with development of times, growth in the living standard, the buildings decorating inner and external walls is more and more paid attention to by people.In China's interior exterior wall building and ornament materials in vogue common coating, plastic-blasting, dry doubling face, mosaic, wall tile are arranged at present.The shortcoming that these building and ornament materials in use all exist some to be difficult to overcome.Common coating: efflorescence easy to change, dull coloring do not have brilliance; Plastic-blasting: little poison, dull coloring, construction is complicated; The dry doubling face: dull coloring, generally slightly improve grade and house along the street all is reluctant to use; Wall tile: construction is complicated, and the duration is longer, can come off, and cost an arm and a leg; Mosaic: construction is complicated, and the duration is longer, easily comes off, and the price height, the human consumer is difficult for accepting.

The purpose of this invention is to provide a kind of water-borne coatings, this coating is particularly suitable for inner wall decoration, and has overcome the above-mentioned defective of existing building finishing material.

Coating of the present invention also can be described as water cement lacquer, but is not limited in the decoration cement material.

Water cement lacquer of the present invention contains oil-in-water type acrylate resin, pigment, dispersion agent, tackifier, mould inhibitor, plasticizer and water.

Described cement paint also can further contain sanitas, rust-preventive agent, antifreezing agent, anti-settling agent, defoamer, wetting agent and/or ion tranquilizer.

Dispersion agent in the described coating can be any material that plays dissemination therein, can be selected from anionic property polymer interfacial agent, for example the ammonium salt of polyacrylic ester.

Described wetting agent can be any material that plays humidification therein, preferred especially Potassium tripolyphosphate.

Described antifreezing agent can be any material that plays freeze proof effect therein, preferred especially ethylene glycol.

Described mould inhibitor can be any material that plays mildew-proof function therein, preferred especially barium metaborate.

Described plasticizer can be any material that plays plastic effect therein, special pref-erable dioctyl phthalate (being abbreviated as DOP).

Described ion tranquilizer can be any material that plays the stable effect of ion therein, preferred especially dimethylethanolamine.

The preferred especially titanium dioxide of described pigment.

Described sanitas can be any material that plays preservative activity therein.

Described rust-preventive agent can be any material that plays rust inhibition therein, and is for example optional from organic zinc misfit thing.

Described tackifier can be any material that plays viscosifying action therein, special preferable methyl Mierocrystalline cellulose.

Described anti-settling agent can be any material that prevents precipitating action that rises therein, for example can be treated earth.

Described defoamer can be any material that plays the froth breaking effect therein, for example can be silicon ketone emulsion.

The preferred weight percent of component is described in the water cement lacquer of the present invention:

Oil-in-water type acrylate resin 20-79%

Pigment 10-50%

Water 10-60%

Dispersion agent 0.1-0.8%

Wetting agent 0.08-0.7%

Antifreezing agent 0.1-0.8%

Mould inhibitor 0.06-0.5%

Plasticizer 0.1-0.8%

Ion tranquilizer 0.06-0.5%

Sanitas 0.06-0.5%

Rust-preventive agent 0.06-0.5%

Tackifier 0.1-0.8%

Anti-settling agent 0.08-0.7%

Defoamer 0.06-0.5%

Also can further contain barium sulfate in this cement paint, content is preferably 0.1-10%.

Described water uses deionized water especially.

The preparation method of coating of the present invention can be described auxiliary agent, pigment and portion water are mixed stirring, is ground to below the fineness 30 μ m, adds oil-in-water type acrylate resin and all the other raw materials again, and the even after-filtration of restir gets product.

The principal feature of coating of the present invention is as follows:

1, elegant style is attractive in appearance, and is bright in luster, do not fade for a long time, can comply with individual's the color and luster of liking, brush out various pattern color depth collocation, clear lucid and lively, rich texture, the figure main case body sense of ejection is strong, and the optical effect that shines is mutually arranged, and gives harmony, gracefulness, satisfied, lucid and lively enjoyment.

2, simple to operate, the operating efficiency height, handle bottom well after, can once brush, do not need loaded down with trivial details chromatography, save a large amount of engineering times, can brushing, roller coating, spraying, rapidly dry.

3, physicochemical property is excellent, the glossiness height, and washability, the water brush can't is washed off lacquer, and it is clean as new to wash the back, and alkali resistance is excellent, strong adhesion, ageing resistance is good, and water-based is nuisanceless, and water-dilutable is easy to use.

4, permeability is good, the extension globule phenomenon of having avoided general paint or ceramic tile to occur.

5, of many uses, the building materials such as wall, plasterboard, asbestos plate of can cementing are widely used in the indoor and outdoor application of buildings such as office block, dwelling house, public utility.

In order to illustrate in greater detail the characteristics of coating of the present invention, its production standard is listed as follows:

Mesh-of-grind	Below the 30 μ m
		Time of drying	1 hour with interior half hard knot
Opacifying power	Every liter more than 7 square metres
		Water tolerance	Soak water and be as good as shape in 36 hours
Alkali resistance	Soak saturated limewater and be as good as shape in 24 hours
		Stability	Normal storage did not have caking in 12 hours, was easy to mix well.
Heat residual amount	40%-80%
		Ash content	20%-50%
Viscosity	80-120Ku
		Abrasion resistance	Come and go the phenomenon of washing crack-free, no noticeable wear through 1000 times

The measuring method of each index is:

1, fineness test rules:

Get the test portion of desire survey, stir, be put in the fineness device and be marked as that end of 100 towards oneself, then with scraper perpendicular to fineness device groove length direction, at the uniform velocity to be marked as 0 that hold level with both hands and scrape, just there is a successive to change face in the groove, reads the initial maximum value that occurs three or three above continuous lines between scale, be fineness.

2, measure time of drying:

A. touch dry: keep flat brassboard at assigned temperature, make to be coated with to face up, touch with finger tip then and be coated with the face centre, when the finger tip non-viscous paint, be touch dry.

B. half hard knot is dry: rub being coated with to wipe on the face gently with finger tip, when the face of being coated with did not have scratch, it was dry to be half hard knot.

C. hard knot is dry: refer to be pressed on the test piece centre with the forefinger brute force with mother, be coated with face and do not have fingerprint and cause the convex-concave place, be coated with on the face back and forth rubbing with finger tip, the face that is coated with does not also have scratch, is hard knot drying.

3, water tolerance measuring method: get 4 suitably the cement plates of size be coated with coating to be surveyed, allow its complete drying, get three then and immerse in the water and be about 4/5ths of test piece length, after a few hours, it has or not the taking-up sight foaming, phenomenon such as peels off.

4, alkali resistance measuring method: get four of test boards that scribble coating, place three of 5%NaOH solution, take out after a few hours, observe being as good as shape.

5, ash content: get the test portion that stirs and put into the porcelain crucible that quality is A, claim that its weight is B, heat makes its ashing, puts into the moisture eliminator internal cooling to room temperature, claims that its quality is C, and three data just can be regarded as out ash content D% thus.D＝（C-A）/（B-A）×100%

Annotate: take a sample has for three times twice above (containing twice) to reach standard then to represent by checking.

6, opacifying power: (Pfund's cryptometer) measures it with cryptometer, white black stone plate, and black and dark color are used white slabstone, and other employing black and white two plates of all kinds are measured it.Test portion is placed the recess at the end of cryptometer, glass cover-plate is carefully covered, move repeatedly about then, evenly cover base plate to film, it is degree that the edge of groove be cannot see, and record glass plate front is engraved on numeral on the slabstone, measures number of times, take average number, calculate it according to following formula:

HP＝1/KL

In the formula: the permanent number (0.01 or 0.02) of K=

The L=opacifying power is measured numeral

HP=opacifying power (m ²/ l)

7, abrasion resistance: in the unglazed plastic plate of black (on about 435 * 165 * 0.25mm), the film spreader with 180 μ m gaps applies sample, leave standstill 7 after, spraying paint faces up puts on the testing table of washability trier, and the level of giving is because of fixed.Earlier treated hairbrush places on the spray plane then, and the limit applies about 450gf(4.4111N) pressure on hairbrush, the limit brushing face that sprays paint.The brushing face is often moistening with suds therebetween, with hairbrush the 1st kind of sample come and gone brushing 1000 times, after equally the 2nd kind of sample being wiped 2000 times, water flushing after trier takes off test piece is inspected under daylight and is sentenced with the 100mm length of hairbrush scratch mark central authorities that not expose ground be qualified.This test is made 2 to same material, and wherein if 1 can washability, promptly looks this sample and is " washability " person.

8, the residual flow measurement method of heating: get three fritter aluminium platinum, be converted into little square box respectively, each claims its quality A etc. to indicate printed words such as 1,2,3; The test portion of desire survey stirred respectively get about about 1 gram, place respectively in 3 aluminium platinum boxes, claim that again its quality is B etc., all sending into temperature then is to cure 3 hours in 130 ℃ of baking boxs, takes out and to divide its quality of another name C etc. again.A, B, three data of C just can be calculated the residual amount D%:D=(C-A of heating thus)/(B-A) * 100%

Annotate: sampling (contains) standard that reaches and then represents by check more than three times.

9, viscosity measurement: adopt U.S. Brookfield viscometer, model is ku-1.

The invention is further illustrated by the following examples.

Embodiment:

The present invention's raw materials used (in the bracket is domestic commercially available prod code name, has " platform " printed words to represent the Taiwan product) and weight proportion are as follows:

Oil-in-water type acrylate resin 600kg, deionized water 260Kg, titanium dioxide (TiO ₂) 325kg, anionic property polymer interfacial agent (platform DP-512 as dispersion agent, platform DP-518, or P-19) 2.5kg, Potassium tripolyphosphate (platform KTPP) 2kg as wetting agent, ethylene glycol (platform EG as antifreezing agent, or DEG) 2kg, barium metaborate (platform 1069) 1.0kg as mould inhibitor, dioctyl phthalate (DOP) 2kg as plasticizer, dimethylethanolamine (platform DMAE) 1.5kg as the ion tranquilizer, sanitas (platform 1024#, or platform 1025#) 2.5kg, organic zinc misfit thing (platform AR-10) 1.0kg as rust-preventive agent, methylcellulose gum (platform HEC HR as tackifier, T-17, or CMC) 5.5kg, sex change treated earth (platform FX1010) 2kg as anti-settling agent, silicon ketone emulsion (platform 080# as defoamer, platform PA-59, or SPA-202) 1kg, BaSO ₄25kg.

The preparation method of this coating is with 200kg deionized water and described dispersion agent, sanitas, mould inhibitor, rust-preventive agent, 2kg tackifier., anti-settling agent, plasticizer, wetting agent, antifreezing agent, TiO2, BaSO4 mix and send into stirrer with 1200rpm high-speed stirring 1 hour, be ground to then below the fineness 10 μ m, need 2 hours approximately, add oil-in-water type acrylate resin and defoamer then, with 100rpm stirring at low speed 30 minutes, add 3.5kg tackifier, 60kg water and ion tranquilizer then, stirred 1 hour with the 600rpm middling speed, pack after filtering through filter finished product.

This product will replace finishing material such as current face brick mosaic, dry doubling face, common coating with advantage such as good and cheap, easy and simple to handle, nontoxic, that color is various.

Claims (10)

1, a kind of coating is characterized in that containing oil-in-water type acrylate resin, pigment, dispersion agent, tackifier, mould inhibitor, plasticizer and water.

2, coating as claimed in claim 1 is characterized in that further containing sanitas, rust-preventive agent, antifreezing agent, anti-settling agent, defoamer, wetting agent and/or ion tranquilizer.

3, coating as claimed in claim 1 is characterized in that described pigment is titanium dioxide.

4, coating as claimed in claim 1 is characterized in that described dispersion agent is for playing the material of dissemination therein; Described tackifier are for playing the material of viscosifying action therein; Described mould inhibitor is for playing the material of mildew-proof function therein; Described plasticizer is for playing the material of plastic effect therein.

5, coating as claimed in claim 4 is characterized in that described dispersion agent is selected from the ammonium salt of anionic property polymer interfacial agent, particularly polyacrylic ester; Described tackifier are methylcellulose gum; Described mould inhibitor is a barium metaborate; Described plasticizer is a dioctyl phthalate (DOP).

6, coating as claimed in claim 2 is characterized in that described sanitas is for playing the material of preservative activity therein; Described rust-preventive agent is for playing the material of rust inhibition therein; Described antifreezing agent is for playing the material of freeze proof effect therein; Described anti-settling agent is for working the material that prevents precipitating action therein; Described defoamer is for playing the material of froth breaking effect therein; Described wetting agent is for playing the material of humidification therein; Described ion tranquilizer is for playing the material of the stable effect of ion therein.

7, coating as claimed in claim 6 is characterized in that described rust-preventive agent is selected from organic zinc germanium compound; Described antifreezing agent is an ethylene glycol; Described anti-settling agent is a treated earth; Described defoamer is a silicon ketone emulsion; Described wetting agent is a Potassium tripolyphosphate; Described ion tranquilizer is a dimethylethanolamine.

8, coating as claimed in claim 1 is characterized in that further containing barium sulfate.

9,, it is characterized in that the weight percent of described component is as the coating of one of claim 1 to 8:

Oil-in-water type acrylate resin 20-79%

Pigment 10-50%

Water 10-60%

Dispersion agent 0.1-0.8%

Tackifier 0.1-0.8%

Mould inhibitor 0.06-0.5%

Plasticizer 0.1-0.8%

Sanitas 0.06-0.5%

Rust-preventive agent 0.06-0.5%

Antifreezing agent 0.1-0.8%

Anti-settling agent 0.08-0.7%

Defoamer 0.06-0.5%

Wetting agent 0.08-0.7%

Ion tranquilizer 0.06-0.5%

Barium sulfate 0.1-10%

10, the preparation method of the coating of one of a kind of claim 1 to 9 is characterized in that described auxiliary agent, pigment and portion water are mixed stirring, is ground to below the fineness 30 μ m, adds oil-in-water type acrylate resin and all the other raw materials again, the even after-filtration of restir.