CN102153949A - As-cast finish concrete simulated coating - Google Patents

Abstract

The invention discloses an as-cast finish concrete simulated coating. The coating consists of a bottom coating, a middle coating and a surface coating, wherein the bottom coating is an organic silicon polymer; the middle coating is a composition consisting of self-crosslinked polymer, filler, pigment, other auxiliary agents and water; the surface coating is a fluorine silicon resin polymer; the bottom coating is a closing layer and can play a role in closing pores of a base material; the middle coating is a coloring layer and can play a role in approaching the effect of the required as-cast finish concrete; and the surface coating is a cover surface layer and plays a role in resisting weather and contamination. The coating breaks through the technical bottleneck of as-cast finish concrete at home, and radically reduces the construction cost of the as-cast finish concrete.

Description

A kind of imitative Clear Concrete Paint

Technical field

The present invention relates to the building decoration technology field, particularly a kind of imitative Clear Concrete Paint.

Background technology

Clear-water concrete claims decorative concrete again, gains the name because of it has decorative effect.It belongs to one-time cast-forming; do not do any outer decoration; directly adopt the natural surface effect of onsite concrete as facing; therefore be different from normal concrete, surfacing is smooth, and color and luster is even; corner angle are clearly demarcated; N/D and pollution just are coated with one deck or two-layer transparent protective material on the surface, seem very natural, serious.

" yet clear-water concrete " enters Chinese technology later on and bigger variation has taken place technology.Because domestic concrete casting injection formation technology level and external gap are bigger, one-time formed concrete natural look scarcely possesses ornamental, common cold joint seam, the accumulation of salt in the surface soil, rust staining, pitted skin, honeycomb or the like defective is difficult to reach the high standard requirement of clear-water concrete moulding on technology.Must carry out later stage repairing and application handles.

Summary of the invention

The purpose of this invention is to provide a kind of imitative Clear Concrete Paint, described coating contains the primary coat sealer coat, in be coated with pigmented layer and face is coated with finish coat, multiple functions such as the waterproof of coating excellence, weather-proof, anti-contamination and decoration have been given, thereby broken through clear-water concrete technical bottleneck at home, and fundamentally reduced the building cost of clear-water concrete.

The object of the present invention is achieved like this:

A kind of imitative Clear Concrete Paint, this coating by primary coat, in be coated with and face is coated with and forms, wherein:

Primary coat is an organosilicon polymer;

In be coated with the following substances in percentage by weight of serving as reasons and form: self-crosslinking polymer 20～70%, filler 10～50%, pigment 10～30%, the water of other auxiliary agent 1～20% and surplus, gross weight is in 100%;

Face is painted with the fluorine silicon resin polymkeric substance;

Described organosilicon polymer is aqueous silane/siloxane polymer;

Described self-crosslinking polymer is a kind of or its mixture in pure third polymer emulsion, siloxane-acrylate copolymer emulsion or the cinepazid polymer emulsion, and its second-order transition temperature is 15～70 ℃;

Described filler is a kind of or its mixture in cement, silica powder, water-ground limestone, kaolin, barium sulfate, mica powder or the talcum powder;

Described pigment is a kind of or its mixture in Rutile type Titanium Dioxide, iron oxide pigment, phthalocyanine pigment or the composite pigment;

Described other auxiliary agent is to be made up of a kind of or wherein several mixing in dispersion agent, frostproofer, wetting agent, film coalescence aid, sterilant, coupling agent or the defoamer.

Described fluorine silicon resin polymkeric substance is a kind of or its mixture in the polymer-modified and water-based fluororesin polymkeric substance of water-based silicon third.

Primary coat of the present invention is a sealer coat, can play the effect of sealing base material pore; In be painted with pigmented layer, can play the effect near required clear-water concrete effect; Face is painted with finish coat, plays the effect of weather-proof and anti-contamination, and the present invention has broken through clear-water concrete technical bottleneck at home, and has fundamentally reduced the building cost of clear-water concrete.

Embodiment

Following examples further specify application of the present invention, but scope of the present invention are not produced any restriction.

In following examples, the main raw material(s) of using is described as follows:

Wacker E22, organic silican polymer emulsion, Wa Ke company produces, performance index such as following table;

Table 1 organic silican polymer emulsion performance index

Vivid-410, the self-crosslinking acrylic polymer emulsion, Shanghai Sanrui Chemistry Co., Ltd produces, performance index such as following table:

Table 2 self-crosslinking acrylic polymer emulsion performance index

FSJ, fluorocarbon surfactant, E.I.Du Pont Company produces;

R-706, the rutile titanium white powder, E.I.Du Pont Company produces;

2-3168, the silicone resin defoamer is provided by Dow Corning Corporation;

Protectosil SC 60, the silicon-fluorine polymer thing is provided by Evonik Degussa Corp..

Embodiment 1

A kind of imitative Clear Concrete Paint, its prescription is (weight percent):

The imitative Clear Concrete Paint A prescription of table 3

Add entry in reactor, add Wacker E22 or Protectosil SC 60 under stirring action, after being uniformly dispersed, keep stirring 20 ~ 50 minutes, the primary coat or the face that obtain among the composition A are coated with.

In reactor, add deionized water, under stirring action, add Sodium hexametaphosphate 99,2-3168, Texanol successively, after a component disperses or dissolves evenly, can add next component, after all components is uniformly dispersed, stir 5 minutes with the rotating speed maintenance of 600 ~ 700rpm.Under stirring action, add cement, R706 successively after finishing, after a component is uniformly dispersed, can add next component, after all components is uniformly dispersed, stirred 20 ~ 30 minutes with the rotating speed maintenance of 1000 ~ 1500rpm.The back rotating speed that finishes transfers to 500 ~ 600rpm, slowly adds Vivid-410, keep to stir 20 ~ 50 minutes, obtain among the composition A in be coated with.

Embodiment 2

A kind of imitative Clear Concrete Paint, its prescription is (weight percent):

The imitative Clear Concrete Paint B prescription of table 4

Add entry in reactor, add Wacker E22 or Protectosil SC 60 under stirring action, after being uniformly dispersed, keep stirring 20 ~ 50 minutes, the primary coat or the face that obtain among the composition B are coated with.

In reactor, add deionized water, under stirring action, add Sodium hexametaphosphate 99, propylene glycol, 2-3168, Texanol successively, after a component disperses or dissolves evenly, can add next component, after all components is uniformly dispersed, stir 5 minutes with the rotating speed maintenance of 600 ~ 700rpm.Under stirring action, add water-ground limestone, barium sulfate, R706 successively after finishing, after a component is uniformly dispersed, can add next component, after all components is uniformly dispersed, stirred 20 ~ 30 minutes with the rotating speed maintenance of 1000 ~ 1500rpm.The back rotating speed that finishes transfers to 500 ~ 600rpm, slowly adds Vivid-410, keep to stir 20 ~ 50 minutes, obtain among the composition B in be coated with.

Embodiment 3

A kind of imitative Clear Concrete Paint, its prescription is (weight percent):

The imitative Clear Concrete Paint C prescription of table 5

Add entry in reactor, add Wacker E22 or Protectosil SC 60 under stirring action, after being uniformly dispersed, keep stirring 20 ~ 50 minutes, the primary coat or the face that obtain among the composition C are coated with.

In reactor, add deionized water, under stirring action, add sodium polyphosphate, 2-3168, Texanol, FSJ, AMP-95 successively, after dispersing or dissolving evenly, a component can add next component, after all components is uniformly dispersed, stirred 5 minutes with the rotating speed maintenance of 600 ~ 700rpm.Under stirring action, add silica powder, kaolin, R706 successively after finishing, after a component is uniformly dispersed, can add next component, after all components is uniformly dispersed, stirred 20 ~ 30 minutes with the rotating speed maintenance of 1000 ~ 1500rpm.The back rotating speed that finishes transfers to 500 ~ 600rpm, slowly adds Vivid-410, keep to stir 20 ~ 50 minutes, obtain among the composition C in be coated with.

The performance test results sees Table 6:

Table 6 imitative Clear Concrete Paint The performance test results of the present invention

Explanation to above-mentioned term of using and testing method:

1 water tolerance

Measure according to GB/T 1733-1993 " water-resistance property of coating assay method ".

2 alkali resistances

Measure according to GB 9265-1988 " the alkali-proof mensuration of building coating coating ".

3 washability

Measure according to GB/T 9266-2009 " mensuration of building coating coating abrasion resistance ".

4 artificial weathering ageing resistances

Measure according to GB/T 14522-2008 " mechanical industry product plastics, coating, elastomeric material artificial weathering test method fluorescent ultraviolet lamp ", test conditions is as shown in table 7:

Table 7 artificial weathering ageing resistance test conditions

Claims (1)

1. imitative Clear Concrete Paint, it is characterized in that this coating by primary coat, in be coated with and face is coated with and forms, wherein:

Primary coat is an organosilicon polymer;

In be coated with the following substances in percentage by weight of serving as reasons and form: self-crosslinking polymer 20～70%, filler 10～50%, pigment 10～30%, the water of other auxiliary agent 1～20% and surplus, gross weight is in 100%;

Face is painted with the fluorine silicon resin polymkeric substance;

Described organosilicon polymer is aqueous silane/siloxane polymer;

Described self-crosslinking polymer is a kind of or its mixture in pure third polymer emulsion, siloxane-acrylate copolymer emulsion or the cinepazid polymer emulsion, and its second-order transition temperature is 15～70 ℃;

Described filler is a kind of or its mixture in cement, silica powder, water-ground limestone, kaolin, barium sulfate, mica powder or the talcum powder;

Described pigment is a kind of or its mixture in Rutile type Titanium Dioxide, iron oxide pigment, phthalocyanine pigment or the composite pigment;

Described other auxiliary agent is to be made up of a kind of or wherein several mixing in dispersion agent, frostproofer, wetting agent, film coalescence aid, sterilant, coupling agent or the defoamer;

Described fluorine silicon resin polymkeric substance is a kind of or its mixture in the polymer-modified and water-based fluororesin polymkeric substance of water-based silicon third.