CN1193641A

CN1193641A - Waterproof coating material

Info

Publication number: CN1193641A
Application number: CN97109042A
Authority: CN
Inventors: 陈万东
Original assignee: DADONG CHEMICAL INDUSTRY Co Ltd WUHAN CITY
Current assignee: DADONG CHEMICAL INDUSTRY Co Ltd WUHAN CITY
Priority date: 1997-03-17
Filing date: 1997-03-17
Publication date: 1998-09-23

Abstract

A water-proof building paint is composed of liquid component consisting of phenylpropyl emulsion (25-65 wt.%), water (20-35) and conditioning agent, and powder component consisting of cement (25-50 wt.%), titanium oxide powder (10-35) and conditioning agent. Before used, it is prepared by mixing the liquid component with powder one in ratio of 1 : (1.2-3).Its advantages include high refractory performance, adhesion and water-proofing nature, good cold, cracking and aging resistances, and easy construction.

Description

Waterproof paint

The present invention relates to a kind of waterproof paint, belong to building material technical field, the waterproof occasion that is specially adapted to the cement works thing is used.

In the existing water-proof material, water-proofing powder is arranged, waterproof sheet.Their common drawback is, because of the slit of buildings is subjected to influence of temperature change, makes the water-proof material variation that can not conform, and loses waterproof effect.Wherein water-proofing powder scatters and disappears easily, and waterproof sheet is sticking as oil, easily crack, aging; Simultaneously, above material has bigger pollution to environment in construction, as, powder flies upward easily, and the construction workman is also damaged.At present, having developed has a kind of waterproof paint, is 89104899 disclosed waterproof paints as number of patent application, their weak points are: lack enough chemical stabilizations in the coating, are insoluble in the inorganic substance of water, thereby, fast light and the water erosion resistent performance is not strong, life-span is short, and is easily aging.Particularly do not have enough cement material close and photostabilization material, thereby make the waterproof net effect not good with the structure trunk physicochemical property.

The objective of the invention is to, overcome the shortcoming of prior art, provide a kind of and guaranteeing to have under the situation of enough water resistancees, and have high temperature resistant, anti-severe cold, waterproof paint stretch-proof and pressure, tacky.

Waterproof paint of the present invention, it is made up of liquid agent and powder agent; Include weight ratio in the liquid agent and be 25～65% benzene emulsion and 20～35% water, all the other are an amount of conditioning agent; Include weight ratio in the powder agent and be 25～50% cement and 10～35% titanium dioxide, all the other are an amount of conditioning agent; Liquid agent and powder agent synthetic proportioning are 1: 1.2～3.

Above-mentioned waterproof paint of the present invention, the composition of its liquid agent and weight percent are: benzene emulsion 25～65%, water 20～35%, quick dry agent 0～15%, anti-aging agent trace～25%, defoamer 0～25%; Powder agent composition and weight percent are: silicate cement 2 5～50%, talcum powder 10～35%, lime carbonate 10～35%, titanium dioxide 10～35%; Weight proportion when liquid agent and powder agent are synthetic is 1: 1.2～3.

Waterproof paint of the present invention, its benzene emulsion can be vinylbenzene, CALCIUM ACRYLATE copolymer emulsion, or vinylbenzene, CALCIUM ACRYLATE and acrylate copolymer emulsion.Quick dry agent in the liquid agent can be ethylene glycol or propylene glycol.Silicate cement in the powder agent can be 325 ^#, 475 ^#, 425 ^#, 525 ^#, 725 ^#In the cement one or more.

Waterproof paint of the present invention, its compound method is: system prepares liquid agent and powder agent respectively earlier, and its blending ratio is 1: 1.2～3, and the best is 1: 2, and promptly 1 kilogram of liquid need add 2 kilograms powder.Powder agent is to add in the liquid agent at leisure, and is to stir on one side, Yi Bian add powder, guarantees that the final product of coating is even.When the brushing waterproof paint, brushing thickness generally can be the 0.1-2 millimeter, and the best is 0.5～1 millimeter.Brushing one deck is just enough in the ordinary course of things, strengthens waterproof effect as needs, also can be coated with two-layer or multilayer.When engineering construction, to original building crack place, should thoroughly clear up, heave otherwise can cause to film as roofing, influence waterproof effect.This waterproof paint " general mass dryness fraction " is meant: when the construction environment temperature is 10 ℃, need 2 hours; Be 1 hour in the time of 20 ℃; It in the time of 30 ℃ half an hour.After reaching " general mass dryness fraction ", be 20 ℃ of considerations by envrionment temperature, then after 16 hours, can the pedestrian on the coating; After 3 days, coating can be resisted common mechanical pressure, can reach the firm waterproof effectively that reaches after 7 days.In the construction, it is 0.2～3 kilogram that the materials of coating are generally every square metre.

This waterproof paint should stir before use.During construction, former waterproof layer of haveing been friends in the past must all be rooted out totally, brushes after to be dried again.Brushing again after new building (as roof, ground or metope etc.) must make most of moisture content do.When tangible large fracture or cavity are arranged, use earlier the cement equating.When being coated with multilayer, whenever being coated with one deck and should being separated by more than 2 hours.If area is bigger, available spraying way.

The embodiment of waterproof paint preparation of the present invention is as follows:

Example one.Liquid agent: benzene emulsion 25%, water 35%, anti-aging agent 25%, quick dry agent 15%; Powder agent: 525 ^#Silicate cement 25%, talcum powder 30%, lime carbonate 15%, titanium dioxide 30%; Liquid agent: powder agent=1: 3.

Example two.Liquid agent: benzene emulsion (for vinylbenzene, two olefin(e) acid resin copolymer emulsions) accounts for 55%, water 20%, defoamer 5%, anti-aging agent 15%, quick dry agent 5% (propylene glycol, ethylene glycol each 2.5%); Powder agent: 420 ^#Silicate cement 40%, talcum powder 25%, lime carbonate 25%, titanium dioxide 10%; Liquid agent: powder agent=1: 2.

Example three, liquid agent: benzene emulsion (being vinylbenzene, CALCIUM ACRYLATE and acrylate copolymer emulsion) 65%, water 25%, defoamer 5%, anti-aging agent 5%; Powder agent: 325 ^#Silicate cement 50%, talcum powder 20%, lime carbonate 10%, titanium dioxide 20%; Liquid: powder agent=1: 1.2.

The advantage of waterproof paint of the present invention is: coating itself is nontoxic, and is fire-retardant; Easy construction is not trickled, no foaming phenomenon; High temperature resistant, anti-severe cold (sub-zero zero can have good effect of anti-cracking); Good mechanical property, the viscosity height, sealed waterproof effect is good; Resistance of aging is strong.Construction technology is good, not only is suitable for the plane but also is suitable for the waterproof construction of risers buildings.

The foregoing description product is identified through provincial import and export inspection department, and its relevant performance is as follows:

1, outward appearance: white or light yellow;

2, solid part: 〉=45%;

3, watertightness: waterproof;

4, breaking tenacity: 〉=0.3MPa;

5, cohesive strength: 〉=0.5MPa;

6, permeability resistance (when being coated with thickness 1mm): 〉=0.8MPa;

7, extensibility: 〉=10MPa;

8, resistance to deterioration (uviolizing 240h, unit elongation and intensity): no change;

9, thermotolerance: 80 ℃ ± 2 ℃, there is not stream edge and still, qualified;

10, low temperature flexibility :-40 ℃, leakless is qualified;

The quality product performance surpasses the set quota of GB/T1.1-1993 " standard operation rules ".

Claims

1, a kind of waterproof paint, it is made up of liquid agent and powder agent; It is characterized in that include weight ratio in the liquid agent and be 25～65% benzene emulsion and 20～35% water, all the other are an amount of conditioning agent; Include weight ratio in the powder agent and be 25～50% cement and 10～35% titanium dioxide, all the other are an amount of conditioning agent; Liquid agent and powder agent synthetic proportioning are 1: 1.2～3.

2, by the described waterproof paint of claim 1, it is characterized in that:

A, liquid agent composition and weight percent are:

Benzene emulsion 25～65%

Water 20～35%

Quick dry agent 0～15%

Anti-aging agent trace～25%

Defoamer 0～25%

B, powder agent composition and weight percent are:

Silicate cement 25～50%

Talcum powder 10～35%

Lime carbonate 10～35%

Titanium dioxide 10～35%

Weight proportion when c, liquid agent and powder agent are synthetic is: 1: 1.2～3.

3, by claim 1 or 2 described waterproof paints, it is characterized in that: benzene emulsion can be vinylbenzene, CALCIUM ACRYLATE copolymer emulsion, or vinylbenzene, CALCIUM ACRYLATE and acrylate copolymer emulsion.

4, by claim 1 or 2 or 3 described waterproof paints, be characterised in that altogether the quick dry agent in the liquid agent can be an ethylene glycol, or propylene glycol.

5, by the described waterproof paint of above-mentioned any claim, it is characterized in that silicate cement can be 325 ^#, 375 ^#, 525 ^#, 725 ^#In the cement one or more.