Aqueous architectural coating, state's nominal emulsion coatings, marketing claim emulsion paint or wall paint king.The aqueous architectural coating kind is more, forms but mainly contain sizing material, filler and auxiliary agent three parts.
Existing aqueous architectural coating quality top grade, sizing material is generally used the benzene emulsion of resinous amount about 50%, and filler is based on titanium dioxide, zinc sulfide white.The general sizing material of their proportioning accounts for about 61%, and filler accounts for about 35% (wherein titanium dioxide accounts for about 20%), and auxiliary agent accounts for about 4%.Resin is refined by oil or coal, and titanium and the zinc in the zinc sulfide white in the titanium dioxide are rare metals, resource-constrained.Therefore, produce existing high-grade aqueous architectural coating and need consume a large amount of energy and valuable resource, and production cost height, the heavy-polluted shortcoming of integrated environment are arranged.What existing aqueous architectural coating quality was middle-grade generally realizes with resin in the reduction sizing material and the titanium dioxide content in the filler.Though the energy and resource that its consumes are lacked than high-grade aqueous architectural coating, cost is also low slightly, and integrated environment pollutes also less, and it is to be cost to reduce coating quality.Claim 106,803 low-grade aqueous architectural coating in addition on the market in addition.Their sizing material is generally used the polyvinyl formal water-sol, and filler is that main body adds partly grey calcium powder with water-ground limestone generally.This low-grade aqueous architectural coating, the energy, resource consumption are lower, and comprehensive pollution is few, but coating quality is relatively poor, and can not store for a long time, also contain certain free formaldehyde in the coating, environment there is certain harm.
The objective of the invention is to replace resource-constrained, expensive titanium dioxide, zinc sulfide white with the cheap again grey calcium powder of aboundresources (by the product of limestone calcination) through partly digestion, pulverizing; Low with resinous amount, nontoxic polyvinyl alcohol water solution replaces the high emulsions such as phenylpropyl alcohol of resinous amount, it is low to produce a kind of cost, harmless environment, quality reach the aqueous architectural coating (quality can reach national GB/T9756-1995 synthetic resin emulsion interior wall coating and 200 hours standards of national GB/T9755-1995 exterior wall coating material of synthetic resin emulsion artificial ageing resistance) of existing high-grade aqueous architectural coating level.
Principle of the present invention: the filler titanium dioxide that existing aqueous architectural coating is used, zinc sulfide white etc. are a kind of constitutionally stable compounds, and they when coating is done admittedly chemical transformation do not take place, and lean on the generation intensity of condensing of sizing material fully.Therefore, the quality of sizing material and concentration are to improve the principal element of existing aqueous architectural coating intensity.Aqueous architectural coating of the present invention has been broken the traditional concept of existing production aqueous architectural coating, it is the filler ash calcium powder in the coating, strength of coating when coating is done does not admittedly rely on condensing of sizing material, and by self chemically reactive, make to be transformed into constitutionally stable calcite crystal, like plated the thin marble of one deck at body surface.This brand-new production coating method, it is not really important that the quality of sizing material and concentration just seem, first intensity and levelling effect when just playing brushing.The ash calcium powder is the good filler of a kind of hiding rare, sinks to the bottom seriously but produce coating with it, can not store for a long time, makes product be difficult to commercialization and finds a good sale in.A kind of dispersion of the present invention, anti-heavy the enhancing are the ZJC-6 type auxiliary agent of one, and it is rotten to have solved sinking to the bottom of grey calcium powder, makes to reach (GB regulation six months) more than 1 year the storage period of coating, has realized the commercialization that the grey calcium powder of whole usefulness is produced aqueous architectural coating.
Sierozem powder coating material of the present invention is the same with existing aqueous architectural coating, is made up of sizing material, filler, auxiliary agent.Sizing material is a polyvinyl alcohol water solution, and filler is grey calcium powder, and auxiliary agent is the anti-heavy dispersion agent (product of Huangyan people laboratory) of ZJC-6 type.
The resinous amount of described polyvinyl alcohol water solution can be selected between 3-15%, is preferably 8-10%.
The 40-120% that described grey calcium powder add-on can be the polyvinyl alcohol water solution add-on, preferably 70-80%.
The add-on of the anti-heavy dispersion agent of described ZJC-6 type can be the 1-8% of polyvinyl alcohol water solution and filler ash calcium powder total amount, is preferably 3-4%, and all percentage ratios in this specification sheets and umber all are by weight.
Advantage of the present invention is: 1. resourceful grey calcium powder replaces titanium dioxide, the zinc sulfide white of high-grade aqueous architectural coating to sierozem powder coating material of the present invention with cheapness, can save titanium, the zinc rare metal resources of a large amount of preciousnesses; 2. sierozem powder coating material of the present invention, the content of resin in coating only accounts for about 4%, about the sixth of its just existing high-grade aqueous architectural coating amount of resin.So coating of the present invention can reduce the consumption of the energy and resource significantly; 3. the expensive source of sierozem powder coating material of the present invention and the energy are few, and integrated environment pollutes also few.And the material polyethylene alcohol of usefulness, grey calcium powder, the anti-heavy dispersion agent of ZJC-6 type all are materials of nontoxic environment.So sierozem powder coating material of the present invention is a kind of environmentally sound environment-friendly type coating; 4. sierozem powder coating material is with low cost, can reduce human consumer's burden; 5. coating purposes of the present invention is wide, and it can be used for the inside and outside body of wall of buildings, cement flooring road sign, the rust protection of metal.