CN102936460B - Asphalt rubber waterproof coating material - Google Patents

Asphalt rubber waterproof coating material Download PDF

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Publication number
CN102936460B
CN102936460B CN201210351566.XA CN201210351566A CN102936460B CN 102936460 B CN102936460 B CN 102936460B CN 201210351566 A CN201210351566 A CN 201210351566A CN 102936460 B CN102936460 B CN 102936460B
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parts
rubber
tensio
active agent
ethylene
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CN102936460A (en
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肖伟荣
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Wuhan Feisheng Construction Engineering Co ltd
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Wujiang Zhenyu Sewing Equipment Co Ltd
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Abstract

The present invention provides a rubber asphalt waterproof coating material, and belongs to the technical field of coating materials. The coating material is prepared from the following raw materials, by weight, 20-35 parts of a natural rubber, 10-15 parts of a thermoplastic styrene-butadiene rubber, 5-10 parts of acrylic resin, 3-5 parts of ethylene glycol ethyl ether, 20-30 parts of asphalt, 5-10 parts of chlorinated polyethylene, 1-2 parts of silicon carbide crystal whiskers, 3-6 parts of talc powder, 2-4 parts of diatomite , 2-4 parts of stearic acid, 3-8 parts of polyacrylamide, 6-9 parts of an ethylene-vinyl acetate copolymer, 3-5 parts of a plasticizer, 1-2 parts of a defoaming agent, 8-15 parts of a pigment, 2-3 parts of a surfactant, and 40-50 parts of water. The waterproof coating material provided by the embodiments still has good watertightness and good mechanical property after high temperature and high humidity destruction.

Description

A kind of asphalt rubber waterproof paint
Technical field
The invention provides a kind of rubber asphalt waterproof coating, belong to technical field of coatings.
Background technology
Building water-proof paint system is main body by synthesized polymer material, pitch, polymer modified asphalt, inorganic materials etc., mixes the water-proof material of solvent-borne type, water-soluble, water-latex type or the powder-type that appropriate auxiliary agent, material modified, packing material etc. are processed into.Compared with waterproof roll, waterproof paint construction is simple and convenient, is applicable to the basal plane of any shape, and can form fine and close seamless film, and therefore, waterproof paint has been widely used in various waterproofing work, and achieves and develop rapidly.
Wherein, rubber asphalt class synthesis high score subclass waterproof paint, in China's waterproofing work application, is just occupying increasing proportion.Its raw material sources is extensive, and cost is lower, the general waterproofing work of the amount of being applicable to large light.China, for improving petroleum pitch configuration waterproof paint aspect with superpolymer, has carried out relatively large work.There is chloroprene rubber in the mid-1960s--asphalt waterproofing paint, and there is regenerated rubber in the initial stage seventies--asphalt waterproofing paint, and obtain in engineering and more successfully apply.In April, 1994 discloses national standard " Technical code for roof engineering ", has all made clear and definite regulation to the specification of quality of China's waterproof paint, coating waterproofing engineering design main points, constructional method, the acceptance of work and maintenance.
But some asphalt waterproofing paints are not still very good in mechanical property, water resistance and weather resistance etc.At high temperature there is the problems such as embrittlement delamination under there will be creep trickling, low temperature in it, had influence on the water resistance of buildings.
Summary of the invention
For the above commentary to prior art, technical problem to be solved by this invention is: the problem that the endurance quality of rubber asphalt waterproof coating is not good.Adopt following technical scheme:
A kind of rubber asphalt waterproof coating, is made up of the raw material of following parts by weight: natural rubber 20 ~ 35 parts, thermoplastic styrene butadiene rubber 10 ~ 15 parts, acrylic resin 5 ~ 10 parts, ethylene glycol ethyl ether 3 ~ 5 parts, pitch 20 ~ 30 parts, chlorinatedpolyethylene 5 ~ 10 parts, silicon carbide whisker 1 ~ 2 part, talcum powder 3 ~ 6 parts, 2 ~ 4 parts, diatomite, stearic acid 2 ~ 4 parts, polyacrylamide 3 ~ 8 parts, ethylene-vinyl acetate copolymer 6 ~ 9 parts, 3 ~ 5 parts, softening agent, defoamer 1 ~ 2 part, pigment 8 ~ 15 parts, 2 ~ 3 parts, tensio-active agent, 40 ~ 50 parts, water.
The one of above-mentioned pitch preferably in 90# petroleum pitch, 10# petroleum pitch.
Above-mentioned defoamer one or more mixtures preferably in polyoxyethylene glycol, polypropylene glycol, acetylenic glycol, polyvinyl alcohol.
Above-mentioned softening agent one or more mixtures preferably in clorafin, chlorodiphenyl, chlorinated naphthalene, dibutyl phthalate.
Above-mentioned tensio-active agent is preferably anion surfactant, more preferably Sodium dodecylbenzene sulfonate.
Above-mentioned pigment can be selected from one or more mixtures in rutile type, phthalocyanine blue, fast light Huang, toluidine red, chromoxide green, red iron oxide, barba hispanica, iron oxide yellow.
Its preparation method is as follows:
S1: by natural rubber, thermoplastic styrene butadiene rubber under 70 ~ 80 DEG C of conditions, carries out after thin-pass plasticates, adding the tensio-active agent of half weight, evenly mixing;
S2: enter shears after bottom sheet, under 70 ~ 80 DEG C of conditions, to carry out rotational shear under 500 ~ 600rpm rotating speed;
S3: again in S2 products therefrom, adds the tensio-active agent of half weight and the water of half weight, shears 30 minutes, then 800 ~ 900rpm rotating speed down cut 5 minutes, obtains rubber latex;
S4: by asphalt heating to 140 ~ 160 DEG C, insulation, stirs, then adds remaining tensio-active agent and water, stir, obtain bitumen emulsion;
S5: rubber latex, bitumen emulsion are mixed with acrylic resin, ethylene glycol ethyl ether, chlorinatedpolyethylene, silicon carbide whisker, talcum powder, diatomite, stearic acid, polyacrylamide, ethylene-vinyl acetate copolymer, softening agent, defoamer, pigment, stir at 40 ~ 50 DEG C, let cool, to obtain final product.
Silicon carbide whisker in waterproof paint provided by the invention, polyacrylamide and ethylene-vinyl acetate copolymer are organic dispersing agents, the homogeneous program of each component in coating can be made better, be easy to preparation and store.Acrylic resin can make coating produce the performance of UV resistant, not easily aging, brittle, adds ethylene glycol ethyl ether simultaneously and can guarantee compatibility and workability.
Technique effect
Waterproof paint provided by the invention, after hot and humid destruction, still has good watertightness and mechanical property.The engineering waterproofing such as to be applicable between the roofworks of common buildings and lavatory bath, between kitchen; Also the protection against the tide of roofing and vault, body of wall etc. is applicable to.
Embodiment
Each component is prepared by the weight ratio shown in table 1.
The weight proportion of table 1 embodiment 1 ~ embodiment 3
Above-mentioned pitch adopts 90# petroleum pitch.
Above-mentioned defoamer adopts polyoxyethylene glycol.
Above-mentioned softening agent adopts clorafin.
Above-mentioned tensio-active agent adopts Sodium dodecylbenzene sulfonate.
Above-mentioned pigment adopts red iron oxide.
Its preparation method is as follows:
Embodiment 1
S1: by natural rubber, thermoplastic styrene butadiene rubber under 70 ~ 80 DEG C of conditions, carries out after thin-pass plasticates, adding the tensio-active agent of half weight, evenly mixing;
S2: enter shears after bottom sheet, under 70 DEG C of conditions, to carry out rotational shear under 500rpm rotating speed;
S3: again in S2 products therefrom, adds the tensio-active agent of half weight and the water of half weight, shears 30 minutes, then 800rpm rotating speed down cut 5 minutes, obtains rubber latex;
S4: by asphalt heating to 140 DEG C, insulation, stirs, then adds remaining tensio-active agent and water, stir, obtain bitumen emulsion;
S5: rubber latex, bitumen emulsion are mixed with acrylic resin, ethylene glycol ethyl ether, chlorinatedpolyethylene, silicon carbide whisker, talcum powder, diatomite, stearic acid, polyacrylamide, ethylene-vinyl acetate copolymer, softening agent, defoamer, pigment, stir at 40 DEG C, let cool, to obtain final product.
Embodiment 2
Be with the difference of embodiment 1: the temperature in step S1 is 75 DEG C; In step S2, temperature is 75 DEG C, and rotating speed is 550rpm; In step S3, rotating speed is 850rpm; In step S4, temperature is 150 DEG C; In step S5, temperature is 45 DEG C.
Embodiment 3
Be with the difference of embodiment 1: the temperature in step S1 is 80 DEG C; In step S2, temperature is 80 DEG C, and rotating speed is 600rpm; In step S3, rotating speed is 900rpm; In step S4, temperature is 160 DEG C; In step S5, temperature is 50 DEG C.
Performance test
The rubber asphalt waterproof coating of above-described embodiment gained is made a service test according to JC/T975-2005 " bridge waterproof paint ", and with commercially available traditional rubber asphalt waterproofing paint for contrast.Test-results is as shown in table 2.
The performance test data of table 2 embodiment 1 ~ embodiment 3 and reference examples
Embodiment 1 Embodiment 2 Embodiment 3 Reference examples
Tensile strength MPa 1.3 1.4 1.3 1.1
Elongation at break % 850 860 850 800
Low temperature flexibility degree DEG C -30 -29 -30 -21
Watertightness (0.3MPa, 30min) Ne-leakage Ne-leakage Ne-leakage Ne-leakage
In order to characterize the endurance quality of above embodiment waterproof paint, above-mentioned sample is placed in constant temperature thermostat container (50 DEG C, 80% humidity), take out after 30 days, repeat above-mentioned test subject, acquired results is as shown in table 3.
Table 3 embodiment 1 ~ embodiment 3 and the performance test data of reference examples after rupture test
Embodiment 1 Embodiment 2 Embodiment 3 Reference examples
Tensile strength MPa 1.2 1.3 1.3 0.8
Elongation at break % 760 770 760 530
Low temperature flexibility degree DEG C -30 -28 -27 -18
Watertightness (0.3MPa, 30min) Ne-leakage Ne-leakage Ne-leakage There is seepage
Can see from table, the waterproof paint that the present embodiment provides, after hot and humid destruction, still has good watertightness and mechanical property.

Claims (1)

1. a rubber asphalt waterproof coating, is made up of the raw material of following parts by weight: natural rubber 30 parts, thermoplastic styrene butadiene rubber 12 parts, acrylic resin 7 parts, ethylene glycol ethyl ether 4 parts, pitch 30 parts, chlorinatedpolyethylene 7 parts, silicon carbide whisker 1 part, talcum powder 5 parts, 3 parts, diatomite, stearic acid 2 parts, polyacrylamide 8 parts, ethylene-vinyl acetate copolymer 9 parts, 5 parts, softening agent, defoamer 1 part, pigment 10 parts, 2 parts, tensio-active agent, 45 parts, water; Described pitch is 90# petroleum pitch; Described defoamer is polyoxyethylene glycol; Described softening agent is clorafin; Described tensio-active agent is Sodium dodecylbenzene sulfonate; Described pigment is red iron oxide; Its preparation method is: S1: by natural rubber, thermoplastic styrene butadiene rubber under 75 DEG C of conditions, carries out after thin-pass plasticates, adding the tensio-active agent of half weight, evenly mixing; S2: enter shears after bottom sheet, under 75 DEG C of conditions, to carry out rotational shear under 550rpm rotating speed; S3: again in S2 products therefrom, adds the tensio-active agent of half weight and the water of half weight, shears 30 minutes, then 850rpm rotating speed down cut 5 minutes, obtains rubber latex; S4: by asphalt heating to 150 DEG C, insulation, stirs, then adds remaining water, stir, obtain bitumen emulsion; S5: rubber latex, bitumen emulsion are mixed with acrylic resin, ethylene glycol ethyl ether, chlorinatedpolyethylene, silicon carbide whisker, talcum powder, diatomite, stearic acid, polyacrylamide, ethylene-vinyl acetate copolymer, softening agent, defoamer, pigment, stir at 45 DEG C, let cool, to obtain final product.
CN201210351566.XA 2012-09-20 2012-09-20 Asphalt rubber waterproof coating material Active CN102936460B (en)

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