CN103555204A - High-polymer modified water-emulsion asphalt-based thick waterproof paint and preparation method thereof - Google Patents

High-polymer modified water-emulsion asphalt-based thick waterproof paint and preparation method thereof Download PDF

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CN103555204A
CN103555204A CN201310416370.9A CN201310416370A CN103555204A CN 103555204 A CN103555204 A CN 103555204A CN 201310416370 A CN201310416370 A CN 201310416370A CN 103555204 A CN103555204 A CN 103555204A
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modified
waterproof paint
high polymer
thick matter
asphaltic base
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CN103555204B (en
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欧曙辉
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ZHEJIANG YUXI CORROSION CONTROL Corp.
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NINGBO RHINO MEMBRANES TECHNOLOGY Co Ltd
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Abstract

The invention discloses a high-polymer modified water-emulsion asphalt-based thick waterproof paint and a preparation method thereof. The paint is prepared by taking high-concentration ultrafine suspension microemulsion anion modified emulsified asphalt, a polyolefins modifier, rubber emulsions such as chloroprene rubber or butadiene styrene rubber or the like, multiple synthetic high-molecular polymers such as epoxy resin and the like, inorganic powders such as SiO2 and bentonite and the like as raw materials and mixing by employing a special production technology. Tests show that after a film is formed from the paint, no embrittlement happens at a low temperature of -20 DEG C, no flow happens at a high temperature of 120 DEG C, the elasticity recovery rate reaches up to 90%, and the paint can be stored stably for one year or more.

Description

Thick matter waterproof paint of modified-high polymer water-latex type asphaltic base and preparation method thereof
Technical field
The present invention relates to water-proof building material, specifically refer to thick matter waterproof paint of a kind of modified-high polymer water-latex type asphaltic base and preparation method thereof.
Background technology
As a kind of traditional water-proof material, pitch has good hydrophobic nature, watertightness, plasticity and cementability, is the cheap architectural waterproof material generally using both at home and abroad, but it exists low temperature brittleness, high temperature trickling, poor flexibility and the ageing-resistant defect such as bad.
At present, in China's soluble asphalt base waterproof coating, modified waterproof asphalt material is mostly Bao Zhixing, and thick coating is not all modified.For thick coating, because pitch is not modified, unit elongation is low, low temperature flexibility is poor, although can form thick coating, its waterproof effect is still limited.
In China, modified asphalt waterproof material generally be take waterproof roll as main, mostly adopts the method for flax silk or glass yarn reinforcement to improve tensile strength, will cause like this unit elongation of material greatly to reduce, meanwhile, the adhesion of coiled material and basic unit is also a large problem in construction always.
On market, high performance modified waterproof asphalt material is also rare.Common mostly be simple and carry high performance modified waterproof asphalt material by adding polychloroprene latex, simultaneously in order to improve high-temperature behavior, in coating, add into linking agents such as MgO, ZnO, but because the consistency of neoprene latex and pitch is poor, make coating less stable in storage process, and oxide compound soluble in water also can have a strong impact on the water resistance of filming.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of high temperature performance good, has excellent storage stability, the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base of the brushing of can directly constructing.
For solving the problems of the technologies described above, technical scheme provided by the invention is: the thick matter waterproof paint of a kind of modified-high polymer water-latex type asphaltic base, and this coating is prepared by each feed composition of following weight percent:
Figure BDA0000380973880000011
Figure BDA0000380973880000021
Described petroleum pitch is 60# pitch or 70# pitch, described polyolefins properties-correcting agent is non-crystalline state propylene copolymer (APAO), Atactic Polypropelene (APP) or styrene-butadiene-styrene block copolymer (SBS), the high-temperature behavior that has improved coating after interpolation polyolefins properties-correcting agent, after film forming, high temperature does not trickle, does not drip.
Described rubber latex is one or both of neoprene latex or SBR emulsion, has improved the low-temperature performance of coating, not embrittlement of low temperature after film forming, and elasticity is good.
Described epoxy resin is epoxy resin E44 or epoxy resin E51, and described diamine crosslinking and curing agent is the wherein a kind of of quadrol, propylene diamine, hexanediamine, Ursol D, 2 methyl pentamethylenediamine.The present invention has added after epoxy resin and solidifying agent, has further improved high temperature resistant, water tolerance, preservative property and the adhesion of coating.
Described stablizer is fatty alcohol-polyoxyethylene ether, polyoxypropyleneglycol or polytetrahydrofuran diol, and described Mierocrystalline cellulose is the wherein a kind of of Natvosol, carboxymethyl cellulose or Vltra tears.The present invention has added after stablizer or Mierocrystalline cellulose, and coating can not emanated in standing storage, unpacks after storing 1 year and still can normally use, and has improved the stability in storage of coating.
Described rosined soap class emulsifying agent is disproportionated rosin potassium soap or rosin soda soap.
Described mineral filler is the SiO of 1-3% 2wilkinite with 1-3%.
The present invention has added SiO 2, after wilkinite and Mierocrystalline cellulose, improved viscosity and plasticity, the use properties of coating is protected, can directly brush, be coated with thickness, thick the filming of formation still has good high low temperature flexibility, improve weathering resistance and the anti-ultraviolet aging function of coating simultaneously, and extended work-ing life.
Described PH conditioning agent is NaOH or KOH.
The present invention also discloses the preparation method of the thick matter waterproof paint of a kind of modified-high polymer water-latex type asphaltic base, and preparation process comprises:
1) petroleum pitch pumped into asphalt tank and be heated to 150 ℃~180 ℃, dropping into polyolefins properties-correcting agent, high-speed stirring, then adds epoxy resin, after stirring, with colloidal mill, grinds, and the polymer-modified asphalt preparing is stirred and de-soak;
2) water, rosined soap class emulsifying agent, diamine crosslinking and curing agent and stablizer Hybrid Heating to 60 ℃, and with PH conditioning agent, pH value is adjusted to 10-12, makes soap lye;
3) polymer-modified asphalt and soap lye are made to modified emulsifying asphalt emulsion, add successively rubber latex, mineral filler, Mierocrystalline cellulose, stir and static froth breaking.
The present invention adopts multiple synthesising macromolecule copolymer and the SiO such as rubber latex, epoxy resin such as the anion-modified emulsified bitumen of high-concentration super-fine microactuator suspension emulsion-type and polyolefins properties-correcting agent, neoprene latex or SBR emulsion 2, the inorganic powder such as wilkinite is as raw material, use special producing technique to be mixed with and make, after tested, low temperature-20 ℃ not embrittlement after film forming, high temperature of 120 DEG C does not trickle, elastic recovery rate is up to 90%, can stably stored more than 1 year.
Embodiment
Below by embodiment, the present invention is described in further detail.
Embodiment 1
60# water-proof material special asphalt is pumped into asphalt tank and be heated to 160 ℃~180 ℃, drop into 3% APP, high-speed stirring 2 hours, then add 2% epoxy resin E51, stir and by colloidal mill, grind for 30 minutes, the polymer-modified asphalt material preparing stirs 2 hours de-soaks, stand-by.In Soap liquid pot, pump into the hot water of 60 ℃, the amount that drops into rosined soap class emulsifying agent 1%, AEO-9 is 0.02% and quadrol 0.6%, reconciles pH value to 11 with NaOH simultaneously, makes soap lye.The polymer-modified asphalt preparing and soap lye are made to the modified emulsifying asphalt emulsion that concentration is 60% left and right through high-speed shearing machine simultaneously, in this emulsion, add 25% polychloroprene latex, then 2% SiO successively 2, 3% wilkinite and 0.2% Mierocrystalline cellulose, in reinforced process, to not stop lentamente to stir to be uniformly dispersed, after having fed intake, keep stirring 30 minutes, then stop stirring finished product barrelling after adding a small amount of defoamer and carrying out defoaming treatment for static 30 minutes.
Embodiment 2
70# heavy traffic paving asphalt is pumped into asphalt tank and be heated to 150 ℃~170 ℃, drop into 3% APAO, high-speed stirring 2 hours, then add 2% epoxy resin E44, stir and by colloidal mill, grind for 30 minutes, the polymer-modified asphalt material preparing stirs 2 hours de-soaks, stand-by.In Soap liquid pot, pump into the hot water of 60 ℃, the amount that drops into rosined soap class emulsifying agent 1%, AEO-9 is 0.02% and quadrol 0.4%, reconciles pH value to 11 with NaOH simultaneously, makes soap lye.The polymer-modified asphalt preparing and soap lye are made to the modified emulsifying asphalt emulsion that concentration is 60% left and right through high-speed shearing machine simultaneously, in this emulsion, add 15% polychloroprene latex and 10% styrene-butadiene latex, then 2% SiO successively 2, 3% wilkinite and 0.2% Mierocrystalline cellulose, in reinforced process, to not stop lentamente to stir to be uniformly dispersed, after having fed intake, keep stirring 30 minutes, then stop stirring finished product barrelling after adding a small amount of defoamer and carrying out defoaming treatment for static 30 minutes.
The weight percent sum of each component of above-described embodiment is 100%.
Press the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base of above-described embodiment gained, according to < < Test methods for building waterproof coatings > > GB/T16777-2008, it is tested.Its main performance testing results is:
The thick matter waterproof paint of table 1 modified-high polymer water-latex type asphaltic base
Figure BDA0000380973880000031
Figure BDA0000380973880000041

Claims (9)

1. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base, is characterized in that: raw materials comprises:
Figure FDA0000380973870000011
2. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, it is characterized in that: described petroleum pitch is 60# pitch or 70# pitch, and described polyolefins properties-correcting agent is non-crystalline state propylene copolymer, Atactic Polypropelene or styrene-butadiene-styrene block copolymer.
3. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, is characterized in that: described rubber latex is one or both of neoprene latex and SBR emulsion.
4. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, it is characterized in that: described epoxy resin is epoxy resin E44 or epoxy resin E51, and described diamine crosslinking and curing agent is quadrol, propylene diamine, hexanediamine, Ursol D or 2 methyl pentamethylenediamine.
5. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, is characterized in that: described rosined soap class emulsifying agent is disproportionated rosin potassium soap or rosin soda soap.
6. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, it is characterized in that: described stablizer is fatty alcohol-polyoxyethylene ether, polyoxypropyleneglycol or polytetrahydrofuran diol, described Mierocrystalline cellulose is Natvosol, carboxymethyl cellulose or Vltra tears.
7. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, is characterized in that: the SiO that described mineral filler is 1-3% 2wilkinite with 1-3%.
8. the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base according to claim 1, is characterized in that: described PH conditioning agent is NaOH or KOH.
9. a preparation method for the thick matter waterproof paint of modified-high polymer water-latex type asphaltic base claimed in claim 1, is characterized in that:
(1) petroleum pitch pumped into asphalt tank and be heated to 150 ℃~180 ℃, dropping into polyolefins properties-correcting agent, high-speed stirring, then adds epoxy resin, after stirring, with colloidal mill, grinds, and the polymer-modified asphalt preparing is stirred and de-soak;
(2) water, rosined soap class emulsifying agent, diamine crosslinking and curing agent and stablizer Hybrid Heating to 60 ℃, and with PH conditioning agent, pH value is adjusted to 10-12, makes soap lye;
(3) soap lye that polymer-modified asphalt step (1) being prepared and step (2) prepare is made modified emulsifying asphalt emulsion, adds successively rubber latex, mineral filler, Mierocrystalline cellulose, stirs and static froth breaking.
CN201310416370.9A 2013-09-12 2013-09-12 Thick matter waterproof paint of modified-high polymer water-latex type asphaltic base and preparation method thereof Active CN103555204B (en)

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