CN102618203A - Weather-resistant etherification caulked joint adhesive and preparation method thereof - Google Patents
Weather-resistant etherification caulked joint adhesive and preparation method thereof Download PDFInfo
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- CN102618203A CN102618203A CN2012100500569A CN201210050056A CN102618203A CN 102618203 A CN102618203 A CN 102618203A CN 2012100500569 A CN2012100500569 A CN 2012100500569A CN 201210050056 A CN201210050056 A CN 201210050056A CN 102618203 A CN102618203 A CN 102618203A
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Abstract
The invention discloses a weather-resistant etherification caulked joint adhesive and a preparation method. The caulked joint adhesive is mainly prepared by organic silicon resin, polyether polyol and a macromolecule nanometer material, has the advantages of having good rebound resilience and strong bonding force, excellent abrasion-resisting capability, anti-aging capability and anti-embedding capability to sharp objects, good oil resistance, chemical corrosion resistance and exclusive anti-permeable high-temperatures resistance, good flowability and easy application property, being non-toxic and tasteless and the like, can be widely applied to water proof and seepage proof of expansion joints of buildings, highway bridges, airport roads, underground tunnels, large stadiums and the like.
Description
Technical field
The invention belongs to chemical field, be specifically related to a kind of weather resistant etherificate caulk compound and preparation method thereof.
Background technology
Caulk compound is claimed joint filling caulk compound cream again, is generally the bi-component reaction-type macromolecular material, and high-grade jointing material is a kind of new type double component ambient cure jointing material.Its product has that cohesive strength is good, good springiness, anti-aging, high-low temperature resistant, long service life, advantage such as it is quick and convenient to construct; Be usually used in air force airport, civil aviaton's cement concrete airport runways; The joint filling at road, bridge, expansion joint, viaduct, the joint filling at cement concrete square, parking, expansion joint, stockyard, the joint filling of cement concrete highway; The joint filling at cement concrete airfield runway, expansion joint, hardstand, place, warehouse, branch logical sequence seam filleting, the flexible position of building waterproof.
Existing caulk compound rebound resilience, cohesive force, wear-resisting, anti-aging and relatively poor, and not environmental protection to the anti-embedding ability of sharp objects.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point a kind of weather resistant etherificate caulk compound is provided.This weather resistant etherificate caulk compound has cold construction, ambient cure; No-solvent type does not shrink after the curing, and volume stability is good; Add various anti-aging agent and inert packing, make the caulk compound ageing-resistant performance good; Elastic restoration ratio is good, can adapt to the characteristics that the breathing of concrete slab requires.
Another object of the present invention provides the preparation method of this weather resistant etherificate caulk compound.
The objective of the invention is to realize in the following manner:
A kind of weather resistant etherificate caulk compound; This caulk compound comprises A component and B component; Wherein, said component A is diphenylmethanediisocyanate and polyether glycol and softening agent by weight being 200～250: 750～810: 5～20 carry out polyreaction obtains the base polyurethane prepolymer for use as component;
Described B component comprises according to its parts by weight meter at least: 280～320 weight part polyether glycols, 220,180～220 weight part silicone resins, 15～35 weight part softening agent, 80～120 parts by weight solvent, 180～220 weight part white cements, 45～55 weight part nano silicons, 80～120 weight part Rutile type Titanium Dioxides, 10～30 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane and 0.5～1.5 weight part catalyzer.
The A component is diphenylmethanediisocyanate and polyether glycol and softening agent by weight being 200～230: 760～800 in the preferred caulk compound: 7～15 carry out the base polyurethane prepolymer for use as component that polyreaction obtains;
The B component comprises according to the parts by weight meter at least: 290～310 weight part polyether glycols, 220,190～210 weight part silicone resins, 20～30 weight part softening agent, 90～110 parts by weight solvent, 190～210 weight part white cements, 48～52 weight part nano silicons, 90～110 weight part Rutile type Titanium Dioxides, 15～25 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane and 0.5～1 weight part catalyzer.
In the above-mentioned caulk compound most preferably the A component be diphenylmethanediisocyanate and polyether glycol and softening agent by weight being to carry out polyreaction at 210: 780: 10 to obtain the base polyurethane prepolymer for use as component; The B component comprises according to its parts by weight meter at least: 300 weight part polyether glycols, 220,200 weight part silicone resins, 25 weight part softening agent, 100 parts by weight solvent, 200 weight part white cements, 50 weight part nano silicons, 100 weight part Rutile type Titanium Dioxides, 20 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane and 1 weight part catalyzer.
Catalyzer of the present invention is preferably dibutyl tin laurate, and described solvent is an aromatic solvent, and softening agent is dibutylester (dibutyl phthalate (DBP)).The described polyether glycol of A component can be the mixture of polyether glycol 220, polyether glycol 330 and polyether glycol 210.Polyether glycol 220, polyether glycol 330 are 290～310: 370～390 with the weight ratio of polyether glycol 210: 90～110, and preferred weight ratio is 300: 380: 100.
Above-mentioned B component also can contain the oxidation inhibitor of 0.5～1.5 weight part and the UV light absorber of 2.5～3.5 weight parts.Be preferably the oxidation inhibitor of 1 weight part and the UV light absorber of 3 weight parts.Preferred 1024 oxidation inhibitor of oxidation inhibitor, preferred 315 UV light absorbers of UV light absorber.Raw material according to the invention is all commercially available to be got.
The preparation method of above-mentioned weather resistant etherificate caulk compound may further comprise the steps:
A) A component preparation: with polyether glycol 100 ℃～120 ℃ following vacuum hydro-extractions 1～3 hour; Be cooled to 35-45 ℃ (preferred 40 ℃) back and drip diphenylmethanediisocyanate, softening agent; Be warming up to 1.5～2.5 hours (preferred 2 hours) of 60 ℃～70 ℃ insulations, obtain the base polyurethane prepolymer for use as component.
B) B component preparation: with polyether glycol 220, solvent, be warming up to 80 ℃～100 ℃; Add 3; 3 '-two chloro-4; 4 '-diaminodiphenyl-methane (MOCA), softening agent, catalyzer disperse 0.5～2 hour (preferred 1 hour), adds silicone resin, Rutile type Titanium Dioxide, nano silicon, white cement dispersed with stirring 1～3 hour (preferred 2 hours) again, grind.Preferably being ground to fineness reaches≤50um.
Caulk compound of the present invention is the bi-component reaction-type sealer, solvent-free non-tar water cure type product.Product meets the technical requirements of " the bridge filleting is used sealer " JC/T 976-2005.Basic mechanical design feature is seen table 1.
Table 1 caulk compound basic mechanical design feature
| Time of drying 23 ℃ ± 2 | Surface drying<=4h |
| Do solid work<=24h | |
| Tensile strength | ?≥1.9MPa |
| Cohesive strength | ?≥1.5MPa |
| Tension set | ?≥300％ |
| High temperature trickling property | 120 ℃ do not trickle |
| Solids content | ?≥92％ |
| Watertightness 0.3MPa 30min | Non-leakage |
The constructional method of caulk compound of the present invention is following:
1, surface treatment: adopt pressurized air, high pressure water butt seam to clear up before the construction, remove surface oil trowel used for plastering, water stain, floating ash.Guarantee the cleaning and the drying of slotted wall and limit portion, the depths reason is dug in should widening that the slit is narrow, shallow excessively, and satisfies the joint filling requirement.
2, mixing match: A component: B component=1: 2
3, the curing time: stir and to use
4, working life: 30min
5, step of applying: compound is embedded in the seam with extruder or sharp mouth bucket.The jointing material that embeds in the seam should be closely knit even, and broken end or cavity must not be arranged.Should adjust materials amount and speed during construction, so that material is not excessive.
With prior art beneficial effect more of the present invention: the environment-friendly type caulk compound that the present invention is made up of organosilicon, polyethers and high molecule nano material.Have good rebound resilience and stronger cohesive force; Excellent wear-resisting, anti-aging and to the anti-embedding ability of sharp objects; Good oil resistant, resistance to chemical attack and exclusive impervious resistance to elevated temperatures; Good flowability is prone to application property and characteristics such as nonpoisonous and tasteless, is a kind of novel environment friendly caulk compound of domestic initiation.Caulk compound of the present invention can be adaptable across the waterproof, seepage control at expansion joints such as building, petrochemical complex, highway bridge, airport roadway, subterranean tunnel and coliseum.
Embodiment
Through concrete embodiment the present invention is further specified below.Wherein, Silicone resin is that Jiangmen city three lignify worker ltds produce; Polyether glycol 210,220 and 330 is Ningwu, Jurong chemical industry ltd and produces; 315 UV light absorbers are that Qingdao China grace chemical industry ltd produces, and dibutyl tin laurate KR-101 is that the triumphant auspicious chemical Science and Technology Ltd. in Changzhou produces.
Embodiment 1
The A component is: diphenylmethanediisocyanate and polyether glycol and softening agent are by weight being to carry out polyreaction at 210: 780: 10 to obtain the base polyurethane prepolymer for use as component; Polyether glycol is that weight ratio is the mixture of 300: 380: 100 polyether glycol 220, polyether glycol 330 and polyether glycol 210.
The B component is: 300 weight part polyether glycols, 220,200 weight part silicone resins, 25 weight part softening agent dibutylesters, 100 weight part aromatic solvents, 200 weight part white cements, 50 weight part nano silicons, 100 weight part Rutile type Titanium Dioxides, 20 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane, 1 weight part catalyzer dibutyl tin laurate, 1 weight part, 1024 oxidation inhibitor, 3 weight parts, 315 UV light absorbers.
A component preparation: polyether glycol 220, polyether glycol 330 and polyether glycol 210 mixtures are added in the reaction kettle; 110 ℃ of following vacuum hydro-extractions 2 hours; Drip '-diphenylmethane diisocyanate, softening agent dibutylester after being cooled to 40 ℃, be warming up to 60 ℃～70 ℃ insulations 2 hours, obtain the base polyurethane prepolymer for use as component.
B component preparation: polyether glycol 220 and aromatic solvent are added in the reaction kettle; Adding MOCA, 315 UV light absorbers, 1024 oxidation inhibitor, softening agent dibutylester, catalyzer disperseed 1 hour when being warming up to 90 ℃; Adding silicone resin, Rutile type Titanium Dioxide, nano silicon, white cement more respectively disperses to stir 2 hours; Three-roller grinds two times, and barrel filling was packed after fineness reached 50um.
Embodiment 2
The A component is: diphenylmethanediisocyanate and polyether glycol and softening agent are by weight being to carry out polyreaction at 200: 800: 20 to obtain the base polyurethane prepolymer for use as component; Polyether glycol is that weight ratio is the mixture of 300: 390: 110 polyether glycol 220, polyether glycol 330 and polyether glycol 210.
The B component is: 310 weight part polyether glycols, 220,180 weight part silicone resins, 30 weight part softening agent dibutylesters, 90 weight part aromatic solvents, 210 weight part white cements, 55 weight part nano silicons, 80 weight part Rutile type Titanium Dioxides, 10 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane, 1.5 weight part catalyzer dibutyl tin laurates.
A component preparation: polyether glycol 220, polyether glycol 330 and polyether glycol 210 mixtures are added in the reaction kettle; 120 ℃ of following vacuum hydro-extractions 1 hour; Drip '-diphenylmethane diisocyanate, softening agent dibutylester after being cooled to 40 ℃, be warming up to 60 ℃～70 ℃ insulations 2 hours, obtain the base polyurethane prepolymer for use as component.
B component preparation: polyether glycol 220 and aromatic solvent are added in the reaction kettle; Adding MOCA, 315 UV light absorbers, 1024 oxidation inhibitor, softening agent dibutylester, catalyzer disperseed 1 hour when being warming up to 100 ℃; Adding silicone resin, Rutile type Titanium Dioxide, nano silicon, white cement more respectively disperses to stir 2 hours; Three-roller grinds two times, and barrel filling was packed after fineness reached 50um.
Embodiment 3
The A component is: diphenylmethanediisocyanate and polyether glycol and softening agent are by weight being to carry out polyreaction at 250: 750: 5 to obtain the base polyurethane prepolymer for use as component; Polyether glycol is that weight ratio is the mixture of 290: 380: 90 polyether glycol 220, polyether glycol 330 and polyether glycol 210.
The B component is: 290 weight part polyether glycols, 220,210 weight part silicone resins, 20 weight part softening agent dibutylesters, 110 weight part aromatic solvents, 190 weight part white cements, 45 weight part nano silicons, 110 weight part Rutile type Titanium Dioxides, 25 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane, 1 weight part catalyzer dibutyl tin laurate.
A component preparation: polyether glycol 220, polyether glycol 330 and polyether glycol 210 are added in the reaction kettle; 100 ℃ of following vacuum hydro-extractions 3 hours; Drip '-diphenylmethane diisocyanate, softening agent dibutylester after being cooled to 45 ℃, be warming up to 65 ℃ of insulations 2.5 hours, obtain the base polyurethane prepolymer for use as component.
B component preparation: polyether glycol 220 and aromatic solvent are added in the reaction kettle; Adding MOCA, 315 UV light absorbers, 1024 oxidation inhibitor, softening agent dibutylester, catalyzer disperseed 2 hours when being warming up to 80 ℃; Adding silicone resin, Rutile type Titanium Dioxide, nano silicon, white cement more respectively disperses to stir 1 hour; Three-roller grinds two times, and barrel filling was packed after fineness reached 50um.
The foregoing description technical target of the product is following: color: the A component is a transparent liquid, and the B component is a thick liquid; Time of drying: 23 ± 2 ℃; Surface drying≤4h; Do solid work≤24h; Completely solidified: 24h; Tensile strength>=1.9MPa; Cohesive strength>=1.5MPa; Tension set>=300%; ℃ do not trickle in high temperature trickling property>=120; Solids content>=92%; Horizontal positioned 4h in (5 ± 2) ℃ thermostat container, smooth; Surely stretch cohesiveness: do not have and destroy; Recovery of elasticity (stretching surely 60% o'clock): 85%; Surely stretch cohesiveness (stretching surely) after the immersion at 60% o'clock: do not have and destroy; Tensile modulus (23 ℃, MPa)≤0.4.
Table 2 and table 3 are for adopting the embodiment caulk compound as JT/T589-2004 cement concrete pavement inlay sealing material and the JC/T 976-2005 bridge filleting technical feature with sealing material.
Table 2 caulk compound of the present invention is as the technical feature of JT/T589-2004 cement concrete pavement inlay sealing material
Table 3 caulk compound of the present invention is as the technical feature of JC/T 976-2005 bridge filleting with sealing material
Claims (10)
1. weather resistant etherificate caulk compound, this caulk compound comprises A component and B component, it is characterized in that:
Said A component be diphenylmethanediisocyanate and polyether glycol and softening agent by weight 200～250: carry out base polyurethane prepolymer for use as component that polyreaction obtain at 750～810: 5～20;
Described B component comprises according to the parts by weight meter at least: 280～320 weight part polyether glycols, 220,180～220 weight part silicone resins, 15～35 weight part softening agent, 80～120 parts by weight solvent, 180～220 weight part white cements, 45～55 weight part nano silicons, 80～120 weight part Rutile type Titanium Dioxides, 10～30 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane and 0.5～1.5 weight part catalyzer.
2. weather resistant etherificate caulk compound according to claim 1 is characterized in that:
Described A component is diphenylmethanediisocyanate and polyether glycol and softening agent by weight being 200～230: 760～800: 7～15 carry out the base polyurethane prepolymer for use as component that polyreaction obtains;
Described B component comprises according to the parts by weight meter at least: 290～310 weight part polyether glycols, 220,190～210 weight part silicone resins, 20～30 weight part softening agent, 90～110 parts by weight solvent, 190～210 weight part white cements, 48～52 weight part nano silicons, 90～110 weight part Rutile type Titanium Dioxides, 15～25 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane and 0.5～1 weight part catalyzer.
3. weather resistant etherificate caulk compound according to claim 2 is characterized in that:
Described A component is diphenylmethanediisocyanate and polyether glycol and softening agent by weight being to carry out the base polyurethane prepolymer for use as component that polyreaction obtains at 210: 780: 10;
Described B component comprises according to the parts by weight meter at least: 300 weight part polyether glycols, 220,200 weight part silicone resins, 25 weight part softening agent, 100 parts by weight solvent, 200 weight part white cements, 50 weight part nano silicons, 100 weight part Rutile type Titanium Dioxides, 20 weight parts 3; 3 '-two chloro-4,4 '-diaminodiphenyl-methane and 1 weight part catalyzer.
4. according to claim 1,2 or 3 described weather resistant etherificate caulk compounds, it is characterized in that: described catalyzer is a dibutyl tin laurate, and described solvent is an aromatic solvent.
5. according to claim 1,2 or 3 described weather resistant etherificate caulk compounds, it is characterized in that: the described polyether glycol of A component is the mixture of polyether glycol 220, polyether glycol 330 and polyether glycol 210.
6. weather resistant etherificate caulk compound according to claim 5; It is characterized in that: described polyether glycol 220, polyether glycol 330 are 290～310: 370～390 with the weight ratio of polyether glycol 210: 90～110, and preferred weight ratio is 300: 380: 100.
7. according to claim 1,2 or 3 described weather resistant etherificate caulk compounds, it is characterized in that: described softening agent is a dibutylester.
8. according to claim 1,2 or 3 described weather resistant etherificate caulk compounds; It is characterized in that: described B component also comprises the oxidation inhibitor of 0.5～1.5 weight part and the UV light absorber of 2.5～3.5 weight parts, the UV light absorber of the oxidation inhibitor of preferred 1 weight part and 3 weight parts.
9. method for preparing the described weather resistant etherificate of claim 1 caulk compound is characterized in that this method may further comprise the steps:
A) A component preparation: with polyether glycol 100 ℃～120 ℃ following vacuum hydro-extractions 1～3 hour; Drip diphenylmethanediisocyanate, softening agent after being cooled to 35～45 ℃; Be warming up to 60 ℃～70 ℃ insulations 1.5～2.5 hours, obtain the base polyurethane prepolymer for use as component.
B) B component preparation: with polyether glycol 220, solvent, be warming up to 80 ℃～100 ℃; Add 3; 3 '-two chloro-4; 4 '-diaminodiphenyl-methane, softening agent and catalyzer disperseed 0.5～2 hour, added silicone resin, Rutile type Titanium Dioxide, nano silicon, white cement dispersed with stirring again 1～3 hour, grind.
10. the method for preparing weather resistant etherificate caulk compound according to claim 9 is characterized in that describedly being ground to fineness and reaching≤50um.
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| CN102618203B (en) | 2013-08-28 |
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Effective date of registration: 20171023 Address after: 214251 Industrial Zone A, Yixing, Wuxi, Jiangsu, China Patentee after: Jiangsu Yibo waterproof anti-corrosion Engineering Co. Ltd. Address before: 214251 A District, Guan Lin Town Industrial Park, Wuxi, Yixing, Jiangsu Patentee before: Jiangsu Gesanghua Paint Co., Ltd. |
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Address after: 214251 Industrial Area A of Guanlin Town, Yixing City, Jiangsu Province Patentee after: Yibo Construction Group Co., Ltd. Address before: 214251 Industrial Area A of Guanlin Town, Yixing City, Jiangsu Province Patentee before: Jiangsu Yibo waterproof anti-corrosion Engineering Co. Ltd. |
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