CN1190148A - Building top painting method - Google Patents

Abstract

The present invention is a composite waterproof coating comprising metal, polyurethane and paint is used to coat huilding. The said method is widely used in roof to prevent leakage and ageing of cement tortar facing layer.

Description

A kind of method of building top painting

The present invention relates to the building roofing painting method, specifically, is a kind of composite water-proof coating of utilizing metal, polyurethane and coating to constitute, and with the method for its building top painting.This method is widely used in the waterproof of building roofing, the anti-aging of cement screedn etc.

In recent years, China continues to use the main material of paper tire petroleum asphalt felt as the building roofing waterproof always, and owing to reasons such as this material property differences, the average life span of its waterproof only has 2-3.And because it is to construct under hot conditions, the injures and deaths incident that causes is of common occurrence; Contaminated environment then is another very important shortcoming of this waterproofing materials.Though national building portion, national building materials industry were promoted 21 waterproofing materialss in 1993, but because these materials or poor performance, perhaps difficulty of construction is big, and perhaps execution conditions require high, reason such as perhaps cost an arm and a leg does not still have to resolve the problem of building roofing waterproof more satisfactoryly.According to the interrelated data incomplete statistics, the roofing permeability of the newly-built building of China is 60-70% at present, and country is used for the expense of roofing antiseepage aspect every year up to more than 1,200,000,000 yuan.The building roofing seepage is the most noticeable common fault of present construction quality, and the whole society presses for a kind of effective new type roof waterproofing materials.

Characteristics of the present invention are: one, the waterproof period of validity is long.This roof waterpoof material is based on the determined use material of its brand-new thinking, textural association, special process and method, makes itself just not have problem of aging, and-100 ℃ and+crack performance can not take place between 150 ℃.Therefore its effective waterproof phase can carry out determining arbitrarily according to requirement of client fully, can certainly be by design service life of building identical roof waterproof valid expiration date, this be the mankind go through the first time and realized the roof waterproof phase and the building operating period synchronous.Two, cost is low.Adjust by 15 years waterproof period of validity, the cost cost of this material is about 30 yuan, will increase by the waterproof period of validity in 10 years on this basis, and only needing every square metre increases about ten yuan of costs again.Three, work efficiency is fast.With this method construction, every four-player is formed a construction group, and can construct every day finishes more than 300 square metres.Four, environmentally safe.Various roof waterpoof materials on the market are determined by the material of its use now, all environment are caused the pollution of certain degree, are one of pollution sources that influence environment and health of human body.Since this roof waterpoof material and structure uniqueness, environmentally safe.Five, heat-insulating property is strong.On the basis of original cost, every square metre of cost that increases about ten yuan can make the interior temperature of building top layer identical with the interior temperature in middle level.Six, anti-industrial atmospheric is strong, the erosion of gases such as especially anti-airborne acid, alkali, chlorine, sulphur.Seven, fire resistance is strong.The various roof waterpoof materials that use are gone up by society now, and none can solve fire-retardant problem.This roof waterpoof material then solved this problem up hill and dale, rewritten the history that the roof waterpoof material design can't realize fire-retardant requirement thus.Eight, can increase city's green areas on a large scale.After finishing with the construction of this roof waterpoof material, can be on it the earth of covering respective thickness, plantation flowers and plants, shrub, vegetables and melon and fruit etc.Can increase city's green areas on a large scale thus, realize the large-scale space greening, improve city appearance and people's inhabitation, living environment widely, and save a large amount of soils relatively, reduce the fund of purchasing land use for greening in a large number as greening.On the practical work, if also can on the basis that does not increase cost, material be transformed into the needed random color of client, as green sky blue etc. in greening on the roofing.In a word, it is the roof waterpoof material of a kind of water resistance, economic benefit, social benefit brilliance, and its appearance makes the roof waterproof field realize the great change of revolution.

The related raw material of the inventive method comprise:

Be used to form the wire of metal level, comprise aluminium wire, zinc silk, stainless steel wire and/or alloying metal silk etc.

The composition that is used to form the composite material waterproof coating comprises high molecular synthetic resin, mica powder, titanium dioxide, French chalk, chromium oxide, silver powder, aluminium paste and pigment; Described high molecular synthetic resin comprises that insatiable hunger closes more than one mixture of a kind of in mylar, polyurethane, polyurethane expanded material, phenolic resins, the epoxy resin or its; Described pigment comprises ultramarine, graphite, iron oxide, chrome yellow, chromium trioxide, pigment paste.

Its concrete operating procedure of method provided by the present invention is:

1. by the accurate high-pressure metering pump of two station symbols the two kinds of components of A, B (commercial) that are used to form soft or hard polyurethane fat expanded material are injected the polyurethane foam material spraying equipment, this equipment these two kinds of materials after treatment, import gun slot equably by two output channels, and make its thickness requirement be sprayed on building surface by design.

2. 380 volts AC are rectified into the DC voltage of 20-36 volt, make current strength reach the 250-400 ampere, with this as working power, make a metal spray tube through insulation processing, the both sides of spray tube are fixed one respectively and are transmitted wire and wheel, select two identical materials or different wires, as two sacrificial electrodes, send wheel that two one metal wires are delivered to spray tube end and made its row near by two silks, after connecting power supply, because electric pole short circuit forms electric arc,, blow out it vaporific with compressed air with the fusing of two one metal wires, being sprayed onto step 1. makes on the matrix, form metal coating, when metal coating reached design thickness, second operation work finished;

This step also can be passed through oxy-acetylene spray gun spray metal layer.

3. on metal coating,, mineral matter nonmetal accordingly, burning material polymer composite according to the difference spraying (or brushing) of designing requirement, the composition of wherein said composite material can be:

Form proportioning (weight portion)

100 parts of high molecular synthetic resins;

Mica powder 0.1-50 part;

Titanium dioxide 0.1-50 part;

French chalk 1-10 part;

Chromium oxide 0.5-15 part;

Silver powder 0.1-20 part;

Thinner 20-30 part;

Pigment 0-10 part;

Wherein said thinner is for organic solvent commonly used, as acetone, ethanol, dimethylbenzene, ethyl acetate etc.

The use equipment that method provided by the present invention relates to can be by shown in the schematic diagram of Fig. 1.Each label is expressed as respectively among the figure: 1, matrix, 2, coating, 3, electric arc adds wire, 4, the wire feed turbine, 5, drum, 6, compressed air, 7, motor, 8, direct current 30V, 350A.

Embodiment 1

It is 30 years that the Party A requires effective waterproof phase of roof waterproof layer, and color is a sky blue.

At first press the aforesaid operations step practice 1. sprays 3cm on roofing cement mortar surface layer polyurethane expanded material; Secondly be the zinc layer of 0.5mm by the aforesaid operations step practice 2. coating thickness in polyurethane expanded material basic unit; Moreover become paint brush on the zinc layer in following ratio auxiliary tone; 100 parts of unsaturated polyester resins, 10 parts of mica powders, 10 parts in silver powder, 5 parts in ultramarine, 10 parts of thinners.

Embodiment 2

It is 50 years that the Party A requires effective waterproof phase of roof waterproof layer, turf plant above the waterproofing course.

At first pressing the aforesaid operations step practice 1., to spray hard polyurethane expanded material 4cm on roofing cement mortar surface layer thick; Secondly be the allumen of 1mm by the aforesaid operations step practice 2. coating thickness in polyurethane expanded material basic unit, moreover brush dion unsaturated resin 4 floor No. 189,3 layers of alkali-free glass cloths, the two is alternate; The most rearmounted native 30cm turf plant.

Claims (9)

1, a kind of method of building top painting, comprise: 1. two kinds of components of the A, the B that are used to form soft or hard polyurethane fat expanded material are injected the polyurethane foam material spraying equipment by the accurate high-pressure metering pump of two station symbols, this equipment these two kinds of material processed after, import gun slot equably by two output channels, and make its thickness requirement be sprayed on building roofing by design; 2. 380 volts of thing AC rectification are become the DC voltage of 20-36 volt, make current strength reach the 250-400 ampere, with this as working power, make a metal spray tube through insulation processing, the both sides of spray tube are fixed one respectively and are transmitted wheel wiry, the wire of selecting two identical materials or unlike material is as two sacrificial electrodes, by two wire feed rollss, two one metal wires are delivered to spray tube end and made it close, behind the connection power supply, because electric pole short circuit forms electric arc, two one metal wires are melted, blow out vaporificly with compressed air, be sprayed onto on the matrix that 1. step make, form metal coating; 3. on metal coating, according to the difference spraying of designing requirement or brush nonmetal accordingly, mineral matter, burning and composite material.

2, method according to claim 1, wherein said metal comprises aluminium, zinc, alumin(i)um zinc alloy and/or stainless steel.

3, method according to claim 1, wherein said polyurethane expanded material comprise soft or hard polyurethane fat expanded material.

4, method according to claim 1 can also be used oxy-acetylene spray gun spray metal silk.

5, method according to claim 1, wherein said composite material are formed and are comprised high molecular synthetic resin, mica powder, titanium dioxide, French chalk, chromium oxide, aluminium paste, aluminium paste, thinner, pigment.

6, method according to claim 5, wherein high molecular synthetic resin comprises one or more the mixture in unsaturated polyester resin, polyurethane, phenolic resins, the epoxy resin.

7, method according to claim 5, wherein pigment comprises ultramarine, graphite, iron oxide, chrome yellow or chromium trioxide.

8, method according to claim 1 wherein can implement for the 1. 2. 3. step according to designing requirement, also can implement to wait 1. the 2. step, also can implement to wait 1. the 3. step.

9, method according to claim 5, wherein the proportioning of composite material composition is:

Form proportioning (weight portion)

100 parts of high molecular synthetic resins;

Mica powder 0.1-50 part;

Titanium dioxide 0.1-50 part;

French chalk 1-10 part;

Chromium oxide 0.5-15 part;

Silver powder 0.1-20 part;

Thinner 20-30 part;

Pigment 0-10 part.

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