CN101619201A - Underwater epoxy adhesive and preparation method thereof - Google Patents
Underwater epoxy adhesive and preparation method thereof Download PDFInfo
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- CN101619201A CN101619201A CN200910017155A CN200910017155A CN101619201A CN 101619201 A CN101619201 A CN 101619201A CN 200910017155 A CN200910017155 A CN 200910017155A CN 200910017155 A CN200910017155 A CN 200910017155A CN 101619201 A CN101619201 A CN 101619201A
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Abstract
The invention relates to an underwater epoxy adhesive and a preparation method thereof; the adhesive contains A component and B component and comprises the following components by weight percent: 15-23% of epoxy resin E-51, 15-23% of epoxy resin E-44, 6-8% of epoxy active diluent, 2-5% of flexibilizer 304 resin, 13-20% of talcum powder, 6-9% of calcium oxide, 1.5-2.0% of organic bentonite, 2-4% of titanium dioxide, 0.5-1.0% of coupling agent, 0.3-1.0% of dispersant, 0.3-1.0% of defoaming agent, 10-15% of 1085 curing agent, 5-10% of 810 curing agent and 1.5-2.2% of curing accelerator; wherein, B component comprises 1085 curing agent, 810 curing agent and curing accelerator and the remainder is A component. The preparation method comprises the following steps: separately stirring the A component and the B component to disperse evenly, adding the B component in the A component to mix evenly and obtaining the underwater epoxy adhesive. The preparation method is simple, the product brushability is good, the curing rate is fast, the bonding strength is high, and the adhesive is resistant to water and the corrosion of acid and base and can not pollute the environment. The adhesive can be widely used to bond various building materials in the water and mending the concrete crack.
Description
Technical field:
The present invention relates to a kind of epoxyn and preparation method thereof, particularly a kind of can use under water epoxy adhesive and preparation method thereof.
Background technology:
Along with The development in society and economy, water conservancy project construction project field requires bonding various material of construction in water, and reservoir dam is carried out requiring to stick with glue the bonding various patching materials of agent when repair in the crack in water.In other field, the demand of using tackiness agent under water surrounding is arranged also as boats and ships, medical treatment, breed etc. equally.But seldom and there are shortcomings such as serviceability is relatively poor, bonding strength is not high, poor water resistance in the epoxyn that can use under water at present.
Summary of the invention:
The objective of the invention is to overcome the defective of prior art, at serviceability is not good in the present tackiness agent water, bonding strength is low, not water-proof characteristics, provide a kind of can fast setting in water, the brushing performance is good, bonding strength is high, the epoxy adhesive of water-tolerant and preparation method thereof.
In order to realize the foregoing invention purpose, underwater epoxy tackiness agent of the present invention, by A, two kinds of components of B are formed, the A component is for having added various filler specials, the Resins, epoxy base fluid of auxiliary agent, B component are that its weight percent consists of: 15-23% Resins, epoxy E-51 by two kinds of special curing agents and curing catalyst is composite forms under water, the 15-23% epoxy resin E-44, the 6-8% epoxy active diluent, 2-5% toughner 304 resins, 13-20% talcum powder, the 6-9% active calcium oxide, the 1.5-2.0% organobentonite, 2-4% titanium dioxide, 0.5-1.0% coupling agent, the 0.3-1.0% dispersion agent, the 0.3-1.0% defoamer, 1085 solidifying agent 10-15%, 810 solidifying agent 5-10%, the 1.5-2.2% curing catalyst, wherein, 1085 solidifying agent, 810 solidifying agent and curing catalyst are B component composition, and surplus is that the A component is formed.
Adopt bisphenol A type epoxy resin E-51 and epoxy resin E-44 to be used among the present invention.The molecular structure of bisphenol A type epoxy resin has determined that its cured article has very high intensity and bonding strength, and higher erosion resistance is arranged.Select bisphenol A type epoxy resin (as E-44, E-51) to be used, the epoxy resin E-44 viscosity is big, but its bonding force is big, and Resins, epoxy E-51 viscosity will hang down, so be used with epoxy resin E-44, can replenish mutual deficiency.
The epoxy active diluent that adopts among the present invention is an ethylene glycol diglycidylether, and this thinner is less to epoxy curing systems thermal distorsion temperature influence, and to the bicyclic oxygen reactive thinner of paint film flexibility and the shock resistance effect of having clear improvement.It not only can reduce the viscosity of epoxy adhesive system, improves the coating and the flowability of glue, improves its wetting capacity and wetting capacity, and has improved the shock resistance of paint film, counter-bending ability and resistance toheat.
The toughner that adopts among the present invention is 304 unsaturated polyesters of resin processing plant of Xinhua.This toughner can be miscible with Resins, epoxy, participates in curing reaction, improves the fragility of epoxy resin cured product, plays toughening effect.
The filler that adopts among the present invention is the mixture of active calcium oxide, talcum powder and organobentonite, Rutile type Titanium Dioxide.In tackiness agent, suitably add talcum powder and organobentonite as the part filler, can reduce the consumption of resin relatively, reduce cost.Simultaneously also can improve physical and mechanical properties, as increase modulus of elasticity, reduce linear expansivity, reduce cure shrinkage, increase thermal conductivity, increase toughness, increase dielectric properties (electric breakdown strength), increase the ability that sclerosis back glued membrane absorbs vibration, increase use temperature, increase bonding strength, and improve water-fast, medium-resistance.In addition, have a layer moisture film under water between tackiness agent and the adherend, so select partly to absorb water filler, active calcium oxide (unslaked lime) commonly used, the water reaction on it and adherend surface generates oxyhydroxide, has improved interface conditions, and the reaction heat of emitting has simultaneously promoted the curing reaction of tackiness agent.
Adopt special-purpose underwater curing agent 1085 and 810 composite uses among the present invention, when general underwater curing agent is used under water, compare with using in dry environment, cohesive strength reduces by more than 50 at least, and appearance " whiting " phenomenon.1085 fully under water the strong epoxy curing agent be a kind of hydrophobic class solidifying agent, it and water do not react, and when gluing water are got rid of outside the adherend with the Resins, epoxy reaction and bond.It can not only be in wet environment and bonding under water, and its cohesive strength is compared conservation rate and is close to absolutely with using under dry environment.But because of its amine value is low, consumption is big, so high 810 underwater curing agent and the curing catalyst DMP-30 of complex amine value uses, regulates its consumption, improves curing speed.
The coupling agent that the present invention adopts is γ-glycidyl propyl trimethoxy silicane (KH-560).
The dispersion agent that the present invention adopts is the modest 923S of moral, and it has special interfacial activity, can help pigment wetting and decondensation, and it can be adsorbed on surface of pigments and prevent to return slightly, makes coating have the good preservation stability, and is bentonitic good activator.
The defoamer that the present invention adopts is that moral is modest 6800, belongs to high viscosity, solvent-free system dedicated defoamer.
The preparation method of underwater epoxy adhesive of the present invention operates according to following steps: (each material consumption all is weight percentage)
The first step, the preparation of A component:
The modest 923S of dispersion agent moral of coupling agent KH-560, the 0.3-1.0% of the epoxy resin E-44 of Resins, epoxy E-51, the 15-23% of 15-23%, epoxy active diluent ethylene glycol diglycidylether 6-8%, 0.5-1.0%, the defoamer moral modest 6800 of toughner 304 unsaturated polyester 2-5%, 0.3-1.0% are poured in the dispersed with stirring still successively, stir, pour organobentonite 1.5-2.0% into, stir again, after stirring, add talcum powder 13-20%, active calcium oxide 6-9%, titanium dioxide 2-4%, high-speed stirring is disperseed, and grinds then, packs;
Second step, the preparation of B component:
The curing catalyst DMP-30 of 1085 solidifying agent 10-15%, 810 solidifying agent 5-10% and 1.5-2.2% is stirred in encloses container;
The 3rd step, before using A, B component are mixed, stir, promptly make underwater epoxy adhesive.
Underwater epoxy adhesive preparation method of the present invention is simple, the technology strictness, and product brushing performance is good, and curing speed is fast, the bonding strength height, water-fast, acid-alkali-corrosive-resisting, free from environmental pollution.Can be widely used in various material of construction of bonding and mending concrete crack in water.
Embodiment:
The present invention will be further described below in conjunction with specific embodiment.
Embodiment 1:
Prepare underwater epoxy adhesive A component according to following weight percent:
Resins, epoxy E-51 19.0%
Epoxy resin E-44 19.0%
Ethylene glycol diglycidylether 7.0%
Toughner 304 resins 3.7%
Talcum powder 13.8%
Active calcium oxide 8.0%
Organobentonite 1.6%
Titanium dioxide 3.0%
γ-glycidyl propyl trimethoxy silicane 0.8%
The modest 923S 0.5% of moral
Moral modest 6,800 0.5%
Prepare underwater epoxy adhesive B component according to following weight percent:
1085 solidifying agent 14.0%
810 solidifying agent 7.0%
Curing catalyst DMP-30 2.1%
190g Resins, epoxy E-51,190g epoxy resin E-44, ethylene glycol diglycidylether 70g, γ-glycidyl propyl trimethoxy silicane 8g, the modest 923S of 5g moral, 304 resin 37g, 5g defoamer moral modest 6800 are poured in the dispersed with stirring still successively, stir, pour organobentonite 16g into, stir again, after stirring, add talcum powder 138g, active calcium oxide 80g, titanium dioxide 30g, high-speed stirring is disperseed, grind then, make the A component; 1085 solidifying agent 140g, 810 solidifying agent 70g and 21g curing catalyst DMP-30 are stirred in encloses container, make the B component; Pour the B component into the A component and mix, promptly make underwater epoxy adhesive.It is bonding to carry out steel-steel in water, concrete bonding, and performance test is carried out in bonding back maintenance 28 days.Test result: steel-steel stretching slip resistance: 19.5MPa; The bonding tensile strength of steel-steel: 14.9MPa; With concrete bonding strength: the 2.89MPa that just drawing.
Embodiment 2:
Prepare underwater epoxy adhesive A component according to following weight percent:
Resins, epoxy E-51 23.0%
Epoxy resin E-44 15.0%
Ethylene glycol diglycidylether 6.0%
Toughner 304 resins 4.0%
Talcum powder 18.0%
Active calcium oxide 6.0%
Organobentonite 1.8%
Titanium dioxide 4.0%
γ-glycidyl propyl trimethoxy silicane 0.7%
The modest 923S 0.8% of moral
Moral modest 6,800 0.7%
Prepare underwater epoxy adhesive B component according to following weight percent:
1085 solidifying agent 12.0%
810 solidifying agent 6.2%
Curing catalyst DMP-30 1.8%
230g Resins, epoxy E-51,150g epoxy resin E-44, ethylene glycol diglycidylether 60g, γ-glycidyl propyl trimethoxy silicane 7g, the modest 923S of 8g moral, 304 resin 40g, 7g defoamer moral modest 6800 are poured in the dispersed with stirring still successively, stir, pour organobentonite 18g into, stir again, after stirring, add talcum powder 180g, active calcium oxide 60g, titanium dioxide 40g, high-speed stirring is disperseed, grind then, make the A component; 1085 solidifying agent 120g, 810 solidifying agent 62g and 18g curing catalyst DMP-30 are stirred in encloses container, make the B component; Pour the B component into the A component and mix, promptly make underwater epoxy adhesive.It is bonding to carry out steel-steel in water, concrete bonding, and performance test is carried out in bonding back maintenance 28 days.Test result: steel-steel stretching slip resistance: 19.2MPa; The bonding tensile strength of steel-steel: 15.3MPa; With concrete bonding strength: the 2.68MPa that just drawing.
Embodiment 3:
Prepare underwater epoxy adhesive A component according to following weight percent:
Resins, epoxy E-51 19.5%
Epoxy resin E-44 18.5%
Ethylene glycol diglycidylether 6.5%
Toughner 304 resins 3.8%
Talcum powder 15.0%
Calcium oxide 9.0%
Organobentonite 1.5%
Titanium dioxide 3.0%
γ-glycidyl propyl trimethoxy silicane 0.8%
The modest 923S 0.5% of moral
Moral modest 6,800 0.5%
Prepare underwater epoxy adhesive B component according to following weight percent:
1085 solidifying agent 13.0%
810 solidifying agent 6.5%
Curing catalyst DMP-30 1.9%
195g Resins, epoxy E-51,185g epoxy resin E-44, ethylene glycol diglycidylether 65g, γ-glycidyl propyl trimethoxy silicane 8g, the modest 923S of 5g moral, 304 resin 38g, 5g defoamer moral modest 6800 are poured in the dispersed with stirring still successively, stir, pour organobentonite 15g into, stir again, after stirring, add talcum powder 150g, active calcium oxide 90g, titanium dioxide 30g, high-speed stirring is disperseed, grind then, make the A component; 1085 solidifying agent 130g, 810 solidifying agent 65g and 19g curing catalyst DMP-30 are stirred in encloses container, make the B component; Pour the B component into the A component and mix, promptly make underwater epoxy adhesive.In water,, paste the GB flexible filler then with this tackiness agent of concrete surface brushing, treat the tackiness agent completely solidified after, remove to peel off the GB flexible filler with hand, GB flexible filler distortion, and the bonding plane place is bonding good.Above evidence is feasible with bonding plasticity GB flexible filler of this tackiness agent and inflexible concrete surface in water, can be used for the mending concrete crack with this.
Claims (6)
1, a kind of underwater epoxy adhesive, it is characterized in that: this sizing agent is by A, two kinds of components of B are formed, the A component is for having added filler special, the Resins, epoxy base fluid of auxiliary agent, the B component is by two kinds of special curing agents and curing catalyst is composite forms under water, its weight percent consists of: 15-23% Resins, epoxy E-51,15-23% epoxy resin E-44,6-8% epoxy active diluent, 2-5% toughner, the 13-20% talcum powder, 6-9% active calcium oxide, 1.5-2.0% organobentonite, the 2-4% titanium dioxide, the 0.5-1.0% coupling agent, 0.3-1.0% dispersion agent, 0.3-1.0% defoamer, 1085 solidifying agent 10-15%, 810 solidifying agent 5-10%, 1.5-2.2% curing catalyst DMP-30, wherein, 1085 solidifying agent, 810 solidifying agent and curing catalyst are B component composition, and surplus is that the A component is formed.
2, a kind of underwater epoxy adhesive according to claim 1 is characterized in that: the epoxy active diluent of employing is an ethylene glycol diglycidylether.
3, a kind of underwater epoxy adhesive according to claim 1 is characterized in that: the toughner of employing is 304 unsaturated polyesters.
4, a kind of underwater epoxy adhesive according to claim 1 is characterized in that: the filler of employing is the mixture of active calcium oxide, talcum powder and organobentonite, Rutile type Titanium Dioxide.
5, a kind of underwater epoxy adhesive according to claim 1 is characterized in that: coupling agent is γ-glycidyl propyl trimethoxy silicane; Dispersion agent is the modest 923S of moral; Defoamer is the modest solvent-free system dedicated defoamer 6800 of moral.
6, a kind of preparation method of underwater epoxy adhesive, it is characterized in that operating as follows: each material consumption proportion all is weight percentage, the first step, preparation A component, Resins, epoxy E-51 with 15-23%, the epoxy resin E-44 of 15-23%, epoxy active diluent ethylene glycol diglycidylether 6-8%, coupling agent γ-glycidyl propyl trimethoxy silicane 0.5-1.0%, the modest 923S of 0.3-1.0% dispersion agent moral, toughner 304 unsaturated polyester 2-5%, the modest solvent-free system dedicated defoamer 6800 of 0.3-1.0% moral is poured in the dispersed with stirring still successively, stir, pour organobentonite 1.5-2.0% into, stir again, after stirring, add talcum powder 13-20%, active calcium oxide 6-9%, titanium dioxide 2-4%, high-speed stirring is disperseed, and grinds then, packing; In second step, preparation B component stirs the curing catalyst DMP-30 of 1085 solidifying agent 10-15%, 810 solidifying agent 5-10% and 1.5-2.2% in encloses container; The 3rd step, before using A, B component are mixed, stir, promptly make underwater epoxy adhesive.
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| CN2009100171555A CN101619201B (en) | 2009-07-16 | 2009-07-16 | Underwater epoxy adhesive and preparation method thereof |
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| CN2009100171555A CN101619201B (en) | 2009-07-16 | 2009-07-16 | Underwater epoxy adhesive and preparation method thereof |
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| CN101619201B CN101619201B (en) | 2012-05-30 |
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| CN2009100171555A Expired - Fee Related CN101619201B (en) | 2009-07-16 | 2009-07-16 | Underwater epoxy adhesive and preparation method thereof |
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| CN109679553A (en) * | 2018-12-20 | 2019-04-26 | 四川蜀羊防水材料有限公司 | A kind of graphene epoxy waterproof anti-corrosion encapsulating slurry and preparation method thereof |
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