CN109880454A - A kind of rapid-curing cutback single polymer cement liquid water-repellent paint and its preparation process - Google Patents
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint and its preparation process Download PDFInfo
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- CN109880454A CN109880454A CN201910060237.1A CN201910060237A CN109880454A CN 109880454 A CN109880454 A CN 109880454A CN 201910060237 A CN201910060237 A CN 201910060237A CN 109880454 A CN109880454 A CN 109880454A
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Abstract
The present invention provides a kind of rapid-curing cutback single polymer cement liquid water-repellent paint and preparation method thereof, and the water-repellent paint includes following components: polymer emulsion, filler, defoaming agent, wetting agent, fungicide, dispersing agent, thickener, cement liquid, exciting agent, coagulant.The exciting agent is the combination of sodium hydroxide, any one or two kinds in calcium hydroxide.The coagulant is that di-oxalate lithium borate or difluorine oxalic acid boracic acid lithium are compounded with lithium sulfate.Rapid-curing cutback effect of the present invention is good, and it is short to solidify the time, and after constructing under household condition, film can be done solid work by 30-37min.
Description
Technical field
The present invention relates to a kind of rapid-curing cutback water-repellent paint and its preparation processes, and in particular to a kind of rapid-curing cutback single polymer liquid
Body cement waterproof paint and its preparation process belong to water-repellent paint technical field.
Background technique
Polymer cement waterproof paint (JS water-repellent paint) is a kind of novel green water-repellent paint, and JS water-repellent paint is mainly used
In municipal administration, the waterproof of architectural engineering, impervious, leak repairing, heat-insulated, decoration.Such as: roofing, exterior wall, toilet bath room, basement, pond, electricity
Cable trench, inspection shaft, road and bridge face etc., it is very widely used.
Polymer cement waterproof paint is by acrylic emulsion or VAE lotion and inorganic powder, a variety of auxiliary agents, additive essence
It makes.Be it is a kind of not only had organic material elasticity high, but also waterproof coating the advantages that organic and/or inorganic materials durability is good.It applies
Excellent waterproof coating can be formed after covering, and mill base appropriate can be added as needed and be configured to coloured coating.
JS water-repellent paint is classified as I type, II type and type III according to its mechanical property.
I type of JS- is mainly used for that the deflections such as roofing are larger and the position of relatively dry.II type of JS- and type III are mainly used for
The deflections such as kitchen, toilet, balcony are small, the moist but position do not soaked for a long time.Type III is preferably not used in pipe root, yin-yang
The processing of the detail treatments such as angle, floor drain.
The traditional polymer cement waterproof paint overwhelming majority is the bicomponent system for including liquid material, powder on the market at present,
There is only a few one pack system powder system.
Above two system has the disadvantage in that (1) for bicomponent system, needs when coating liquid material and powder individually produce
Two sets of individual equipment are wanted, are invested larger.(2) powder generates a large amount of dust in process of production, and working environment is severe, unfavorable
In environmental protection, Rainproof moisture-proof is wanted in transport and storage process, increases cost, and the shelf-life is short.(3) in the construction process, liquid
Using mechanical stirring when material is mixed with powder (bicomponent system) or liquid material with water (one pack system powder system), when stirring is not thorough
It is easy to appear powder ball and a large amount of bubbles, causes very big Construction defect.Construction party is easy working in order to reduce cost or appearance
It needs, is easy to appear the problem of not matching mixing by regulation, causes very big hidden danger of quality.(4) in relative humidity and closed
After constructing in environment, coating is not easy to form a film, and the speed done after forming a film is slow, bottom easily occurs and surface layer rate of drying is different
It causes, stress cracking occurs.(5) it does solid work slowly, different coating is constructed, and interval time is long, and construction efficiency is low, and construction cost is high.(6) at
Film water absorption rate is high, is easy to appear situations such as film softens, is detached from base when applying in the long-term Soaking environment such as pond, exists
Great risk.
Summary of the invention
The present invention provides a kind of rapid-curing cutback single polymer cement liquid water-repellent paint and its preparation process, to reach with
Lower goal of the invention: single polymer cement liquid water-repellent paint of the present invention, rapid-curing cutback；Easily construction；After coating film forming, rate of drying
Fastly, bottom is consistent with surface layer rate, stress cracking does not occur；Have excellent tensile strength, elongation at break and adhesive strength；
Water absorption rate is low；Has excellent waterproof performance；Environmental protection；Water-repellent paint of the present invention is generally applicable, can substitute JS I type, II type, III
Type and conventional acrylic water-repellent paint.
To reach the purpose, the technical scheme is that
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint, is calculated, including following raw material components in parts by weight:
Above-mentioned number is mass parts.
Corresponding mill base can be increased into formula according to actual needs, meet the needs to color.
The exciting agent is using alkaline matters such as sodium hydroxide, calcium hydroxides as the solid powder of effective component, with micro- glue
Capsule package.
The coagulant is after di-oxalate lithium borate or difluorine oxalic acid boracic acid lithium compound according to a certain percentage with lithium sulfate
Solid powder uses encapsulation.Coagulant and exciting agent collaboration use, more efficient compared to traditional coagulant, promote solidifying effect
Fruit is more preferable.
The present invention remains that liquid condition is not solidified when not constructing, by most fastly can be after exciting agent and coagulant triggering
30min is fully cured.Exciting agent and coagulant exist with microencapsulation form, microcapsules be using inorganic silicate material as wall material,
It is process by being granulated with micro capsule technology.Microcapsules are after coating application of the present invention, and the surface area of coating instantaneously increases, water
Divide quickly volatilization, causes microcapsule wall material rupture to release active constituent, trigger cement liquid, react, cement liquid is prevented
Water paint rapid curing.
Polymer emulsion is one or more of VAE lotion, pure-acrylic emulsion, styrene-acrylic emulsion, styrene-butadiene emulsion.
Filler is one of wollastonite in powder, coarse whiting, barium sulfate, kaolin, silica flour, silicon powder, quartz sand etc. or several
The combination of kind.
Wetting agent is one or both of alkyl polyoxyethylene ether or dodecane sulfonate.
Dispersing agent is one of polyacrylate dispersing agent or polycarboxylate salt dispersant or tripolyphosphate dipersant
Or several combination.
Defoaming agent is one in mineral oil defoaming agent, organic silicon defoaming agent, polyethers defoaming agent or composite anti-foaming agent
Kind is several.
Fungicide is benzimidazole germicide or Kathon CG fungicide.
Thickener is one of modified cellulose class thickener, polyacrylic ester thickener or polyurethane thickener or several
The combination of kind.
A kind of production technology of rapid-curing cutback single polymer cement liquid water-repellent paint is as follows:
(1) 95% water, wetting agent, dispersing agent are added in reaction kettle, stir 5min under 400r/min revolving speed.
(2) revolving speed is increased to 600r/min, is added cement liquid, dispersion 10min is to uniform.
(3) revolving speed is increased to 800r/min, filler is added, disperse 30min.
(4) polymer emulsion, fungicide, defoaming agent is added, disperses 20min under 600r/min revolving speed.
(5) revolving speed is reduced to 300r/min, is added exciting agent microcapsules and coagulant microcapsules, dispersion 10min is to equal
It is even.
(6) thickener dissolved dilution is added in reaction kettle with 5% water, revolving speed is increased to 500r/min, dispersed
20min detection, adjustment viscosity are KU=105-120, and blanking is packed after filtering.
Compared with prior art, technical solution of the present invention has the advantages that
(1) characteristic of rapid-curing cutback
After constructing under household condition, film does solid work the construction that can enter lower road coating by 30-37min, compared to existing
The polymer cement waterproof paint 4-5h dry solidification of technology, construction efficiency are promoted at double, and cost of labor substantially reduces.Due to micro-
Capsule technique is applied and the special curing mechanism of cement liquid, and after construction, microcapsules rupture, coating composition is reacted rapidly, bottom
It is consistent with upper layer reaction rate, it is not in stress cracking；General polymer cement paint is solved when closed area is constructed
Be not easy it is dry and since inside and outside gap is big for rate of drying, drying time it is serious it is inconsistent caused by stress cracking, especially inner corner trim position
It sets, solves the problems, such as in the industry of this field.
(2) the excellent workability of single polymer liquid water-proofing coating of the present invention
Rapid-curing cutback single polymer cement liquid water-repellent paint of the present invention be liquid material system, reduce costs, facilitate transport and
Storage, especially in the construction process, opens bucket and uses, reduce the trouble of ingredient, powder liquid ingredient is now carried out when avoiding construction,
It can not accurate control proportion bring quality accident.
The coating can spray in construction, can scrape, can roller, can brush, mode is versatile and flexible, it is not tacky in construction, without after thickening,
Few sagging, workability are excellent.
(3) excellent tensile strength and elongation at break
Film maintenance is carried out according to the regulation of " Test methods for building waterproof coatings " GB/T 16777-2008 and is detected, and is surveyed
Obtaining non-treated tensile strength is 2.80-3.37MPa, and non-treated elongation at break is 307-350%.
The coating had not only had certain flexibility, but also tensile property with higher, it is meant that it can resist various stress
The deformation of generation and coating is not destroyed, be suitable for various complex working conditions.With a kind of coating, that is, alternative I type on the market, II
The polymer emulsion building water-proof paint of type, type III JS water-repellent paint and one pack system, a kind of coating multiple use.
(4) excellent waterproof performance
A, preferable impermeability
We carry out impermeable water test with the film conserved according to GB/T 16777-2008,8h are tested under 1.0MPa pressure, still
So without there is permeable phenomenon, it is much higher than prior art 0.3MPa, the fluid-tight level of 30min.
B, higher impermeability
The coating impermeability pressure of this coating (mortar back side) is higher than 1.9MPa, is significantly better than the level of 0.8 MPa of the prior art.
Preferable impermeability and higher impermeability are the embodiments of the excellent waterproof performance of the coating.
(5) excellent adhesive strength
It is tested using the adhesive strength that the coating carries out non-treated, wet base, immersion processing and acid, alkali process, it is non-treated viscous
1.80-2.10 MPa can be reached by connecing intensity.Good adhesive strength is conducive to the combination of coating and various substrates, prevents from falling off, sky
Situations such as drum, occurs, and extends the service life of coating.
Specific embodiment
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint of embodiment 1
The water-repellent paint includes following raw material components:
The coagulant is the mixture of di-oxalate lithium borate and lithium sulfate, is matched as 3:7；
The exciting agent calcium hydroxide.
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint of embodiment 2
The water-repellent paint includes following raw material components:
The coagulant is the mixture of di-oxalate lithium borate and lithium sulfate, is matched as 3:7；
The exciting agent calcium hydroxide.
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint of embodiment 3
The water-repellent paint includes following raw material components:
The coagulant is the mixture of di-oxalate lithium borate and lithium sulfate, is matched as 3:7；
The exciting agent calcium hydroxide.
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint of embodiment 4
The water-repellent paint includes following raw material components:
The coagulant is the mixture of di-oxalate lithium borate and lithium sulfate, is matched as 3:7；
The exciting agent sodium hydroxide.
A kind of preparation method of the rapid-curing cutback single polymer cement liquid water-repellent paint of embodiment 5
(1) it stocks up: each raw material is weighed according to formula rate, it is spare.
It (2) is two parts, difference accounting 95% and 5% by moisture；
95% water is added in reaction kettle, and wetting agent, dispersing agent is added, stirs 5min under 400r/min revolving speed.
(3) revolving speed is increased to 600r/min, is added cement liquid, dispersion 10min is to uniform.
(4) revolving speed is increased to 800r/min, filler is added, disperse 30min.
(5) polymer emulsion, fungicide, defoaming agent is added, disperses 20min under 600r/min revolving speed.
(6) revolving speed is reduced to 300r/min, is added exciting agent microcapsules and coagulant microcapsules, dispersion 10min is to equal
It is even.
(7) thickener dissolved dilution is added in reaction kettle, revolving speed is increased to 500r/ with remaining 5% water
Min, dispersion 20min detection, adjustment viscosity is KU=105-120, and blanking is packed after filtering.
Rapid-curing cutback single polymer cement liquid water-repellent paint prepared by the above case study on implementation, according to industry relevant criterion
Performance detection is carried out after carrying out film maintenance, test results in the following table:
As seen from the above table, using single polymer cement liquid water-repellent paint of the present invention, doing solid work the time is 30-37min, nowhere
Reason tensile strength is 2.80-3.37 Mpa, and non-treated elongation at break is 307-350%, and heat treatment tensile strength is 3.67-
4.26Mpa, heat treatment elongation at break are 208-243%, and water process tensile strength is 3.84-4.32Mpa, and water process fracture is stretched
Long rate is 202-237%, and alkali process tensile strength is 3.89-4.38Mpa, and alkali process elongation at break is 200-234%, non-treated
Adhesive strength is 1.80-2.10Mpa, and low temperature flexibility (∮ 10mm stick) is -10 DEG C, flawless；Impermeability is 1.0MPa, and 8h is not
It is permeable.
A kind of rapid-curing cutback single polymer cement liquid water-repellent paint that the present invention invents can meet " polymer cement simultaneously
Water-repellent paint " index request in GB/T 23445-2009 and " polymer emulsion building water-proof paint " JC/T 864-2008,
And to part index number carried out upgrading optimization, have the characteristics that environmental protection, convenient for storage and transport, construction efficiency it is high, rapid-curing cutback and prevent
Water effect is good, overcomes traditional polymer cement waterproof paint and polymer emulsion building water-proof paint water absorption rate height, weatherability
The shortcomings that difference, tensile strength and elongation at break cannot be taken into account, while avoiding and now matching in common two-component coating work progress
Expect bring quality problems.It is apparent that under design of the invention, the specific implementation method that can change there are also very much,
This, it should it states, any change made under inventive concept of the invention, it is especially relevant to cement liquid any to change
Become, falls in protection scope of the present invention.
Claims (10)
1. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint, it is characterised in that: the water-repellent paint includes following
Component: polymer emulsion, defoaming agent, wetting agent, fungicide, dispersing agent, thickener, cement liquid, exciting agent, promotees to coagulate filler
Agent.
2. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Water-repellent paint, in parts by weight, component proportion are as follows: 35-43 parts of polymer emulsion, 25-35 parts of filler, defoaming agent 0.1-0.3
Part, 0.2-0.5 parts of wetting agent, 0.05-0.15 parts of fungicide, 0.1-0.5 parts of dispersing agent, 0.1-0.4 parts of thickener, cement liquid
20-25 parts, 0.1-0.2 parts of exciting agent, 0.3-0.5 parts of coagulant.
3. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Exciting agent is the combination of sodium hydroxide, any one or two kinds in calcium hydroxide.
4. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Coagulant is that di-oxalate lithium borate or difluorine oxalic acid boracic acid lithium are compounded with lithium sulfate.
5. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Exciting agent and coagulant encapsulation.
6. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Polymer emulsion is the combination of one or more of VAE lotion, pure-acrylic emulsion, styrene-acrylic emulsion, styrene-butadiene emulsion.
7. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Filler is the combination of one or more of wollastonite in powder, coarse whiting, barium sulfate, kaolin, silica flour, silicon powder, quartz sand etc..
8. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Wetting agent is one or both of alkyl polyoxyethylene ether or dodecane sulfonate.
9. a kind of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, it is characterised in that: described
Dispersing agent is one or more of polyacrylate dispersing agent or polycarboxylate salt dispersant or tripolyphosphate dipersant
Combination；The defoaming agent is mineral oil defoaming agent, organic silicon defoaming agent, polyethers defoaming agent, one in composite anti-foaming agent
Kind is several；The fungicide is benzimidazole germicide or Kathon CG fungicide；The thickener is the increasing of modified cellulose class
Thick dose, the combination of one or more of polyacrylic ester thickener or polyurethane thickener.
10. a kind of preparation method of rapid-curing cutback single polymer cement liquid water-repellent paint according to claim 1, special
Sign is: the following steps are included: dissolving dispersion moisture agent, dispersing agent with water, cement liquid is added, filler is added, polymerization is added
Exciting agent microcapsules and coagulant microcapsules are added in object lotion, fungicide, defoaming agent, and thickener, the product viscosity of acquisition is added
For KU value 105-120.
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| CN112011234A (en) * | 2020-08-14 | 2020-12-01 | 赣州市犇牛防水建材有限公司 | Polymer cement-based waterproof coating and preparation method thereof |
| CN112409019A (en) * | 2020-11-11 | 2021-02-26 | 中国地质大学（北京） | Low-water-absorption solid waste foam concrete with waterproof layer structure and preparation method thereof |
| CN112625478A (en) * | 2020-12-16 | 2021-04-09 | 成都湛怡峪涂料科技有限公司 | Preparation method of durable cement-based waterproof coating |
| CN113402245A (en) * | 2021-06-22 | 2021-09-17 | 东方雨虹民用建材有限责任公司 | Quick-drying polymer cement waterproof slurry and preparation method thereof |
| CN113861764A (en) * | 2021-11-05 | 2021-12-31 | 宏源防水科技集团有限公司 | High-water-resistance polymer cement waterproof coating and preparation process thereof |
| CN115895370A (en) * | 2022-10-25 | 2023-04-04 | 湖北嘉贝乐建材股份有限公司 | Fire-resistant, waterproof and super-weather-resistant single-component micro-cement coating |
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| CN113861764A (en) * | 2021-11-05 | 2021-12-31 | 宏源防水科技集团有限公司 | High-water-resistance polymer cement waterproof coating and preparation process thereof |
| CN115895370A (en) * | 2022-10-25 | 2023-04-04 | 湖北嘉贝乐建材股份有限公司 | Fire-resistant, waterproof and super-weather-resistant single-component micro-cement coating |
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