CN106810646A - A kind of self-cross linking type water-proof emulsion and preparation method thereof and the waterproof basement membrane prepared using the water-proof emulsion - Google Patents

A kind of self-cross linking type water-proof emulsion and preparation method thereof and the waterproof basement membrane prepared using the water-proof emulsion Download PDF

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CN106810646A
CN106810646A CN201611190653.6A CN201611190653A CN106810646A CN 106810646 A CN106810646 A CN 106810646A CN 201611190653 A CN201611190653 A CN 201611190653A CN 106810646 A CN106810646 A CN 106810646A
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parts
self
cross linking
emulsion
linking type
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CN106810646B (en
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张小琼
陆勇新
刘亮
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Guangdong Yulan Group PLC
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Guangdong Yulan Group PLC
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Abstract

The present invention relates to filmogen technical field, and in particular to a kind of self-cross linking type water-proof emulsion and preparation method thereof and the waterproof basement membrane prepared using the water-proof emulsion, emulsion include the raw material of following parts by weight：Polyisocyanates, oligomer polyol, chain extender, end-capping reagent, catalyst, comonomer, emulsifying agent, initiator, pH adjusting agent, deionized water, the comonomer are that hard monomer, soft monomer and functional monomer quality parts ratio are 30 ~ 50：10~20：5 ~ 20 mixing, emulsion can realize self-crosslinking, and crosslinking degree is high, good weatherability；Preparation method, preparation process is simple, preparation process there is not pollution to environment；The waterproof basement membrane prepared, basement membrane crosslinking degree is high, good waterproof performance, impact resistance are strong, tear resistance is strong, strong with basal plane adhesion, and with stronger pliability, good weatherability.

Description

A kind of self-cross linking type water-proof emulsion and preparation method thereof and utilization water-proof emulsion preparation Waterproof basement membrane
Technical field
The present invention relates to filmogen technical field, and in particular to a kind of self-cross linking type water-proof emulsion and preparation method thereof and The waterproof basement membrane prepared using the water-proof emulsion.
Background technology
In the prior art, basement membrane is a kind of metope treatment material with alkali resistant, protection against the tide, antimildew function, can effectively be prevented Only the moisture moisture of formation level and alkaline matter exosmose, it is to avoid to wall decorative material：Such as wallpaper, dope layer, glued board, dress The getting damp of plaque, the mouldy bad infringement such as black.More and more, crack, infiltration however as building produced problem now Problem is increasingly severe, and common basement membrane product cannot tackle so severe wall environment at all, so as to greatly shorten The service life of decorative material for wall surface.
Also having some on the market has the basement membrane of water-proof function, has plenty of solvent-borne type waterproof basement membrane, its environment-friendly performance It is poor；Have plenty of and instead of solvent-borne type, be changed to Waterproof basement membrane, but its film degree of cross linking is not high, poor waterproof properties.Meanwhile, Also occur in that water resistance is excellent, and the preferable bi-component water-proof basement membrane of environmental-protecting performance, but such basement membrane is for execute-in-place phase To numerous and diverse and have higher requirements, because using it is preceding must by the A of basement membrane B component be well mixed, solidification cross-linking process is just filled Point, basement membrane waterproof effect can be only achieved optimal.Again because the component of double-component basement membrane two is given birth to using being preceding separate to it Produce, packaging, transportation also bring along inconvenience.
Application No. 201110388142.6 discloses a kind of normal temperature self-crosslinking acrylic emulsion and preparation method thereof, the party Legal system Preparation Method is complicated to be polymerized, it is necessary to repeatedly trigger, and preparation time is long, is unfavorable for batch production.
Application No. 201110423428.3 discloses a kind of room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution and its system Preparation Method, the monomer used in the styrene-acrylic emulsion is respectively provided with glass transition temperature higher, and film forming is difficult, is not easy to be coated into Film.
The content of the invention
The purpose of the present invention is directed to above-mentioned deficiency of the prior art, there is provided a kind of self-cross linking type water-proof emulsion, emulsion Self-crosslinking can be realized, crosslinking degree is high, and stable performance, storage time is long, good weatherability.
It is another object of the present invention to be directed to above-mentioned deficiency of the prior art, there is provided a kind of self-cross linking type water-proof emulsion Preparation method, preparation process is simple, preparation process there is not pollution, environment-protecting asepsis to environment.
Another object of the present invention is directed to above-mentioned deficiency of the prior art, there is provided a kind of waterproof basement membrane, basement membrane crosslinking Degree is high, good waterproof performance, impact resistance are strong, tear resistance is strong, strong with basal plane adhesion, and with stronger pliability.
The purpose of the present invention is achieved through the following technical solutions：
A kind of self-cross linking type water-proof emulsion, including following parts by weight raw material：
20~80 parts of polyisocyanates
10~60 parts of oligomer polyol
10 ~ 30 parts of chain extender
10 ~ 40 parts of end-capping reagent
0.1 ~ 5 part of catalyst
40 ~ 90 parts of comonomer
1 ~ 15 part of emulsifying agent
1 ~ 10 part of initiator
1 ~ 15 part of pH adjusting agent
5 ~ 60 parts of deionized water
Wherein, the comonomer is that hard monomer, soft monomer and functional monomer quality parts ratio are 30 ~ 50：10~20：5~20 Mixing.
The comonomer of self-cross linking type water-proof emulsion of the invention includes hard monomer, soft monomer and the species of functional monomer three Type.Hard monomer possesses glass transition temperature Tg higher, can improve the Tg of copolymer, can make the wearability of film, hardness and Intensity is improved；The glass transition temperature Tg of soft monomer is generally below environment temperature, it is possible to decrease the Tg of copolymer, can make film Possess durability and pliability；There are functional monomer different functional groups to realize different crosslinking methods, increase crosslink density, carry High-fire resistance energy and mechanical performance, improve shock resistance, lear energy, while having good water-fast, weatherability；While this hair Bright self-cross linking type water-proof emulsion uses cooperatively alcohol chain extender and hydrophilic chain extender, the emulsion prepared is had more preferable grain Degree and dispersiveness, more preferably, not stratified, the holding time is longer, and the impact resistance and tear resistance of basement membrane are stronger after coating for stability.
Preferably, including following parts by weight raw material：
30~70 parts of polyisocyanates
15~50 parts of oligomer polyol
10 ~ 20 parts of chain extender
20 ~ 30 parts of end-capping reagent
0.1 ~ 2 part of catalyst
45 ~ 90 parts of comonomer
1 ~ 10 part of emulsifying agent
1 ~ 5 part of initiator
1 ~ 10 part of pH adjusting agent
10 ~ 50 parts of deionized water.
Wherein, the oligomer polyol is 1,4-CHDM, polycaprolactone glycol, polyadipate ethylene glycol Ester, PCDL, polyoxypropyleneglycol, PPOX triol and PPOX tetrol it is therein one or two More than.Between the molecular weight 500~3000 of the oligomer polyol, it is 2 or 3 low degree of functionality, in polyurethane polymerization During, degree of functionality is bigger, and it is easier that polymerization is reticulated, but the reaction rate of polymerization can decline, and be unfavorable for ensuing chain extension Reaction.
Wherein, the polyisocyanates is silicone-modified aqueous polyisocyanates, XDI, many Polymethylene polyphenyl polyisocyanates, hexamethylene diisocyanate, tetramethylxylylene diisocyanate, methyl styrene isocyanide In acid esters one or more.
Wherein, the chain extender includes that alcohol chain extender and hydrophilic chain extender are 1 by quality parts ratio:1.2-2: 1.Chain extension Agent has the characteristic group that can be chemically reacted with reaction system, and molecular weight is low, and reaction is active, to isocyanates and polyalcohols body System constitutes stronger response competition probability, and they can extremely efficient adjust the reaction speed of reaction system, make Emulsion particle size more Small, emulsion is evenly；The alcohol chain extender is low-molecular-weight chain extender, can carry out secondary response with excessive isocyanates, Generation carbamate or biuret structure, the segment of this structure is rigidity, and oligomer polyol is then polyurethane structural, The segment of the structure is flexibility, and what reaction was mainly generated is rigid chain segment, makes basement membrane impact resistance and tear resistance after solidification Stronger, rigid chain segment is used in combination with soft segment, basement membrane is also had good flexibility while taking into account hardness, will not Produce hollowing and channeling water layer.Hydrophilic chain extender introduces hydrophilic radical in polyurethane segment, promotes the emulsification of performed polymer, more promotes Emulsion particle stable dispersion.Self-cross linking type water-proof emulsion of the invention uses cooperatively alcohol chain extender and hydrophilic chain extender simultaneously, Make the emulsion prepared that there is more preferable granularity and dispersiveness, more preferably, not stratified, the holding time is longer, base after coating for stability The impact resistance and tear resistance of film are stronger.
Wherein, the alcohol chain extender be trimethylolpropane, glycerine, 1, in 2,6- hexanetriols one or more. Soft, hard segment produces microcell to separation after the group of alcohol chain extender can make polymerization, while crystallize and align making polymer point Hydrogen chain is more readily formed between son, preferable ordered crystalline can be produced, finally in the resistance rotation effect of crystallization and polymer segment migration Under show polymer there is excellent toughness and hardness, make the basement membrane impact resistance after solidification and tear resistance stronger.
Wherein, the hydrophilic chain extender be diaminobenzoic acid, dihydromethyl propionic acid, ethylenediamine base ethyl sulfonic acid sodium, Isosorbide-5-Nitrae- In butanediol -2- sodium sulfonates and its derivative one or more.In this kind of chain extender usually containing carboxyl, sulfonic acid group or Secondary amine, in it is attached to polyurethane molecular, makes in polyurethane segment with the functional groups that can be ionized, this kind of expansion Chain agent is not only involved in reaction, with chain extension and crosslinked action, the rigidity and mechanical property of product is improved, while it can also reduce original Material compositional viscosity, improves the intermiscibility of feed components, the emulsion prepared is had more preferable granularity and dispersiveness, stability More preferably.
Wherein, the end-capping reagent is in hydroxy-ethyl acrylate, hydroxyethyl methacrylate, methyl ethyl ketoxime and caprolactam One or more.End-capping reagent can participate in the end of chain reaction, carry out end capping reaction with end, and will not cause secondary anti- Should.
Wherein, the catalyst includes the catalyst and tertiary amine compounds of organo-tin compound.Catalyst can be significantly Reaction energy is reduced, makes stoichiometric number with hundred times of carrying out, improve reaction rate.
Wherein, emulsifying agent is the compound emulsifying agent that perfluorooctanoic acid is mixed with lauryl sodium sulfate with arbitrary proportion.This The emulsifying agent of invention can improve the various surface tension constituted between phase in emulsion, be allowed to form uniform and stable dispersion System, makes the monomer pre-emulsion of preparation more stable.
Wherein, initiator is one kind in potassium peroxydisulfate, ammonium persulfate, hydrogen peroxide, and the usage amount of initiator is that monomer is total The 0.2%-0.8% of quality.Initiator carries weak bond, and monomer pre-emulsion can be triggered to carry out polymerisation, makes polymerisation suitable Profit is carried out.
Wherein, the pH adjusting agent is ammoniacal liquor.
Wherein, the functional monomer is that GMA and silicone active monomer mass portion rate are 1-10：1-20.There is active vinyl in GMA and there are two functions of epoxy radicals of ionic reaction Group, can be polymerized in functional group's mode, can be also polymerized in ionic reaction mode, can improve hardness, glossiness, the adhesive force of film And against weather, especially epoxy radicals can increase the connection of polyamide and polyurethanes, with moisture in film forming procedure Volatilization, epoxy reacts with carboxyl so that water-fast and solvent resistance is all improved；Silicone active monomer can improve heterozygosis The heat resistance of emulsion film, solvent resistance and hardness, be allowed to good oxidative resistance and low surface can, oxidative resistance is good The excellent weatherability of offer, and the excellent hydrophobicity that low-surface-energy is produced so that water resistance is greatly improved.It is enriched in emulsion surface Active siloxane group, hydrolyze to form silanol under certain condition, the active group contracting on silanol and polymeric inner or surface Conjunction forms cubic network（Si-O-Si）Cross-linked structure, inner emulsion can be made to be chemically crosslinked point to be increased, fine and close to enhancing film top layer Degree, and the heat resistance and mechanical performance of film are improved, improve water-fast, the solvent resistance of polymer coating film.
Wherein, the silicone active monomer includes VTES, gamma-methyl allyl acyloxypropyl front three TMOS, vinyl front three oxosilane one or more.VTES can significantly improve emulsion Weatherability, water resistance, heat resistance；Gamma-methyl allyl acyloxypropyl trimethoxysilane contains methacryloxy functional groups, There is methoxy silane functional group again, facile hydrolysis, condensation forms polysiloxanes, improves emulsion mechanical performance, improves consistency；Second Alkenyl front three oxosilane colourless transparent liquid, with good bridging property, improves the cross-linked structure of silanol and polymer, and enhancing is applied The density of film.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 60 ~ 80 DEG C, and chain extender is added dropwise, and react 3h ~ 4h, then 80-100 DEG C of 1 ~ 2h of reaction is warmed up to, the oligomer polyol after vacuum dehydration is then added dropwise, react 1 ~ 2h, add envelope End agent, catalyst, react 1 ~ 2h, obtain base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 40 ~ 60 DEG C, first plus 30-40% enters emulsifying agent, then comonomer is added dropwise, quick stirring 0.5 ~ 1h, obtains monomer pre-emulsion；
C, residual emulsifier, 30 ~ 40% initiators are imported in reactor, and the protection of logical nitrogen, add 10 ~ 30% pre- breast of monomer Change liquid, heat up 80 ~ 100 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise remaining monomer pre-emulsion and 60 ~ 70% initiator water Solution, completion of dropping in 2h, and add deionized water to disperse, and 75 ~ 85 DEG C of temperature is controlled, 1 ~ 1.5h is stirred, then cool down, it is added dropwise PH adjusting agent makes pH value be adjusted to 6.5~8.5, filtering and discharging of lowering the temperature, and obtains self-cross linking type water-proof emulsion.
A kind of preparation method of self-cross linking type water-proof emulsion of the invention, preparation process is simple, preparation process does not have to environment Pollution, environment-protecting asepsis can be mass, and operability is high.
A kind of waterproof basement membrane, waterproof basement membrane includes that the raw material of following parts by weight is made：5 ~ 20 parts of auxiliary agent, deionized water 1 ~ 10 parts and 70 ~ 100 parts of the self-cross linking type water-proof emulsion as described in claim 1-9, the auxiliary agent include that parts by weight are 1-3 parts Thickener, 0.1-0.5 part defoamer, 2-6 parts of wetting agent, 5-9 parts of coalescents, 2-6 parts of levelling agent, 0.5-2.5 parts of mould inhibitor, 0.1-0.5 parts of dispersant.The preparation method of waterproof basement membrane includes：Take the deionized water of above-mentioned mass parts, dispersant, wetting agent, Coalescents and levelling agent, add appropriate defoamer, and dispersed with stirring is uniform, 200-500 revs/min of mixing speed；Add certainly Crosslinking water-proof emulsion, dispersed with stirring is uniform, 500-1000 revs/min of mixing speed；Be eventually adding the defoamer of surplus, thickener, Mould inhibitor, dispersed with stirring is uniform, 200-500 revs/min of mixing speed, stands 1-2h, obtains final product self-crosslinking waterproof basement membrane.
The thickener is a kind of association thickener, it is preferable that associated using TEGO ViscoPlus 3030 aqueous Thickener, the defoamer is polysiloxane compound or modified polyorganosiloxane compound, and the wetting agent is alkyl naphthalene sulfonic acid Salt and anion humectant mixture, the coalescents are that ethylene glycol monobutyl ether/dipropylene mixture or alcohol are esterified Compound, the levelling agent is acrylic copolymer or polysiloxane compound, and dispersant is polymer-type anionic dispersing agents, is prevented Mould dose is selected Clariant Corporation Nipacide DFX/1 mould inhibitors.
A kind of waterproof basement membrane of the invention, crosslinking degree is high, good waterproof performance, impact resistance are strong, tear resistance is strong, with basal plane Adhesion is strong, and with stronger pliability, acid and alkali-resistance, anticorrosive, will not produce hollowing and channeling water layer, and can be to loose Ground, special-shaped part and seam of precoating are closed.
Beneficial effects of the present invention：
（One）, a kind of self-cross linking type water-proof emulsion, emulsion can realize self-crosslinking, and comonomer includes various of monomer, with conjunction Suitable glass transition temperature, different functional groups increase crosslinking method, improve the density of crosslinking, and using alcohol chain extender and Hydrophilic chain extender, makes emulsion have more preferable granularity and dispersiveness, and stability of emulsion is more preferable.
（Two）, a kind of preparation method of self-cross linking type water-proof emulsion, preparation process is simple can be mass, preparation process Do not have pollution, environment-protecting asepsis to environment.
（Three）, a kind of waterproof basement membrane of the invention, crosslinking degree is high, good waterproof performance, impact resistance are strong, tear resistance is strong, It is strong with basal plane adhesion, and with stronger pliability, it is acid and alkali-resistance, anticorrosive, hollowing and channeling water layer will not be produced, and can be right Loose ground, special-shaped part and seam of precoating are closed.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment 1
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：20 parts of polyisocyanates, oligomer are more 20 parts of first alcohol, 15 parts of chain extender, 20 parts of end-capping reagent, 0.2 part of catalyst, 55 parts of comonomer, 5 parts of emulsifying agent, initiator 5 Part, 5 parts of pH adjusting agent, 8 parts of deionized water, comonomer are that hard monomer, soft monomer and functional monomer quality parts ratio are 20： 12：8 mixing.
Wherein, the end-capping reagent is methyl ethyl ketoxime.Wherein, catalyst is the catalyst of organo-tin compound：Dibutyl tin Dilaurate.Wherein, emulsifying agent is perfluorooctanoic acid and lauryl sodium sulfate with quality parts ratio 1:The Composite Milk of 1 mixing Agent.Wherein, initiator is potassium peroxydisulfate.Wherein, the pH adjusting agent is ammoniacal liquor.The oligomer polyol is Isosorbide-5-Nitrae-hexamethylene Alkane dimethanol, polyethylene glycol adipate, PCDL and PPOX triol are 1 by quality parts ratio:1.5:2: 2.5 mixture.The chain extender includes that alcohol chain extender and hydrophilic chain extender are 1.8 by quality parts ratio:1.The alcohol chain extension Agent is trimethylolpropane.The hydrophilic chain extender is ethylenediamine base ethyl sulfonic acid sodium.The functional monomer is methacrylic acid Ethylene oxidic ester and silicone active monomer mass portion rate are 8：15.The silicone active monomer includes the ethoxy of vinyl three Base silane.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 60 DEG C, and chain extender is added dropwise, and react 3h, are then warmed up to 80 DEG C of reaction 1h, are then added dropwise the oligomer polyol after vacuum dehydration, react 1h, add end-capping reagent, catalyst, react 1h, obtains base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 60 DEG C, first Jia 40% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 1h, obtained Monomer pre-emulsion；
C, residual emulsifier, 30% initiator are imported in reactor, and the protection of logical nitrogen, 10% monomer pre-emulsion is added, Heat up 80 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 60% initiator solution, 2h Add complete, and add deionized water to disperse, control 75 DEG C of temperature, stir 1h, then cool down, pH adjusting agent is added dropwise is adjusted to pH value 6.5, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：12 parts of auxiliary agent, 8 parts of deionized water and by claim 1- 80 parts of self-cross linking type water-proof emulsion described in 9, the auxiliary agent includes that parts by weight are 1 part of thickener, 0.1 part of defoamer, 3 parts of profits Humectant, 6 parts of coalescents, 5 parts of levelling agents, 2 parts of mould inhibitors, 0.4 part of dispersant.The thickener is TEGO ViscoPlus 3030 association water-based thickeners, the defoamer is polysiloxane compound, the wetting agent be alkylnaphthalene sulfonate with it is cloudy from Sub- wetting agent is 1 by quality parts ratio:2 mixture, the coalescents are ethylene glycol monobutyl ether, and the levelling agent is propylene Acid copolymer, dispersant is polymer-type anionic dispersing agents：Modified polypropene acid ammonium salt dispersant, mould inhibitor selects Clariant Company's Nipacide DFX/1 mould inhibitors.
Embodiment 2
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：40 parts of polyisocyanates, oligomer are more 50 parts of first alcohol, 25 parts of chain extender, 35 parts of end-capping reagent, 3 parts of catalyst, 65 parts of comonomer, 12 parts of emulsifying agent, initiator 8 Part, 10 parts of pH adjusting agent, 36 parts of deionized water, comonomer is for hard monomer, soft monomer and functional monomer quality parts ratio 43：18：18 mixing.
Wherein, the end-capping reagent be hydroxy-ethyl acrylate and hydroxyethyl methacrylate with quality parts ratio be 1:3.5 Mixture.Wherein, catalyst is the catalyst of organo-tin compound：Stannous octoate.Wherein, emulsifying agent is perfluorooctanoic acid and ten Sodium dialkyl sulfate with quality parts ratio be 3:1.5 mixture.Wherein, initiator is ammonium persulfate.Wherein, the pH regulations Agent is ammoniacal liquor.The oligomer polyol is 1,4-CHDM, polycaprolactone glycol, polyethylene glycol adipate, poly- Carbonate diol presses following quality parts ratio 4:0.1:0.5:3 mixture.The chain extender includes alcohol chain extender and hydrophilic expansion Chain agent is 1 by quality parts ratio:1.The alcohol chain extender is trimethylolpropane, glycerine, 1, it is a kind of in 2,6- hexanetriols or It is two or more.The hydrophilic chain extender is diaminobenzoic acid, dihydromethyl propionic acid, ethylenediamine base ethyl sulfonic acid sodium by following weight Portion rate is 0.1：2:3:7:0.5 mixture.The functional monomer is that GMA and organosilicon are lived Property monomer mass portion rate be 8：6.The silicone active monomer includes gamma-methyl allyl acyloxypropyl trimethoxysilane.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 80 DEG C, and chain extender is added dropwise, and react 4h, are then warmed up to 100 DEG C of reaction 2h, are then added dropwise the oligomer polyol after vacuum dehydration, react 2h, add end-capping reagent, catalyst, instead 2h is answered, base polyurethane prepolymer for use as is obtained；
B, base polyurethane prepolymer for use as is cooled to 50 DEG C, first Jia 35% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 0.8h, obtained To monomer pre-emulsion；
C, residual emulsifier, 35% initiator are imported in reactor, and the protection of logical nitrogen, 25% monomer pre-emulsion is added, Heat up 90 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 65% initiator solution, 2h Add complete, and add deionized water to disperse, control 80 DEG C of temperature, stir 1.2h, then cool down, pH adjusting agent is added dropwise adjusts pH value To 7, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：5 parts of auxiliary agent, 2 parts of deionized water and by claim 1-9 70 parts of described self-cross linking type water-proof emulsion, the auxiliary agent includes that parts by weight are 1 part of thickener, 0.1 part of defoamer, 2 parts of profits Humectant, 5 parts of coalescents, 2 parts of levelling agents, 0.5 part of mould inhibitor, 0.1 part of dispersant.The thickener is TEGO ViscoPlus 3030 association water-based thickeners, the defoamer be modified polyorganosiloxane compound, the wetting agent be alkylnaphthalene sulfonate with Anion wetting agent with quality parts ratio be 2:0.5 mixture, the coalescents are alcohol compound, and the levelling agent is Polysiloxane compound, dispersant is polymer-type anionic dispersing agents, and model Hess steps dispersant 7040, and mould inhibitor is selected Clariant Corporation Nipacide DFX/1 mould inhibitors.
Embodiment 3
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：30 parts of polyisocyanates, oligomer are more 20 parts of first alcohol, 14 parts of chain extender, 26 parts of end-capping reagent, 2.0 parts of catalyst, 45 parts of comonomer, 8 parts of emulsifying agent, 9 parts of initiator, 6 parts of pH adjusting agent, 55 parts of deionized water, comonomer are that hard monomer, soft monomer and functional monomer quality parts ratio are 35： 16：13 mixing.
Wherein, the end-capping reagent is that hydroxy-ethyl acrylate, hydroxyethyl methacrylate and caprolactam press quality parts ratio It is 1:3:6 mixture.Wherein, catalyst is tertiary amine compounds：N, N- dimethyl cyclohexyl amine.Wherein, emulsifying agent is perfluor Ammonium caprylate is 2 by quality parts ratio with lauryl sodium sulfate:7 mixture.Wherein, initiator is ammonium persulfate.Wherein, institute PH adjusting agent is stated for ammoniacal liquor.The oligomer polyol is 1,4-CHDM, polycaprolactone glycol, polyadipate second two Alcohol ester is 2 by quality parts ratio:3.5 mixture.The chain extender includes that alcohol chain extender and hydrophilic chain extender press mass fraction Than being 7:6.The alcohol chain extender be trimethylolpropane and 1,2,6- hexanetriols with quality parts ratio be 2:1.The hydrophilic expansion Chain agent be diaminobenzoic acid, ethylenediamine base ethyl sulfonic acid sodium and BDO -2- sodium sulfonates with quality parts ratio be 3:2.5:4 Mixture.The functional monomer is GMA and silicone active monomer mass portion rate is 7： 15.The silicone active monomer includes vinyl front three oxosilane.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 70 DEG C, and chain extender is added dropwise, and react 3.5h, then heat up To 90 DEG C of reaction 1.5h, the oligomer polyol after vacuum dehydration is then added dropwise, reacts 1.5h, add end-capping reagent, catalysis Agent, reacts 1.5h, obtains base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 40 DEG C, first Jia 30% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 0.5h, obtained To monomer pre-emulsion；
C, residual emulsifier, 40% initiator are imported in reactor, and the protection of logical nitrogen, 30% monomer pre-emulsion is added, Heat up 100 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 70% initiator solution, 2h Add complete, and add deionized water to disperse, control 85 DEG C of temperature, stir 1.5h, then cool down, pH adjusting agent is added dropwise adjusts pH value To 8.5, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：20 parts of auxiliary agent, 15 parts of deionized water and by claim 100 parts of self-cross linking type water-proof emulsion described in 1-9, the auxiliary agent include parts by weight be 2.5 parts of thickeners, 0.5 part of defoamer, 5.5 parts of wetting agents, 6 parts of coalescents, 5 parts of levelling agents, 2.5 parts of mould inhibitors, 0.5 part of dispersant.The thickener is TEGO The association water-based thickeners of ViscoPlus 3030, the defoamer is modified polyorganosiloxane compound, and the wetting agent is alkyl Naphthalene sulfonate and anion wetting agent with quality parts ratio be 1:2 mixture, the coalescents are mixed for dipropylene Compound and alcohol compound are 0.5 by quality parts ratio:1 mixture, the levelling agent is polysiloxane compound, dispersant It is polymer-type anionic dispersing agents：Modified polypropene acid ammonium salt dispersant, mould inhibitor selects Clariant Corporation Nipacide DFX/1 mould inhibitors.
Embodiment 4
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：80 parts of polyisocyanates, oligomer are more 60 parts of first alcohol, 30 parts of chain extender, 40 parts of end-capping reagent, 4.5 parts of catalyst, 85 parts of comonomer, 13 parts of emulsifying agent, initiator 7 Part, 17 parts of pH adjusting agent, 60 parts of deionized water, comonomer is for hard monomer, soft monomer and functional monomer quality parts ratio 30：19：20 mixing.
Wherein, the end-capping reagent be hydroxy-ethyl acrylate, hydroxyethyl methacrylate and caprolactam by ratio of weight and the number of copies It is 2:5:2.5:1 mixture.Wherein, catalyst is the catalyst of organo-tin compound：Dibutyltin diacetate.Wherein, breast Agent be perfluorooctanoic acid and lauryl sodium sulfate with ratio of weight and number be 2:3 mixture.Wherein, initiator is peroxidating It is a kind of in hydrogen.Wherein, the pH adjusting agent is ammoniacal liquor.The oligomer polyol is 1,4-CHDM, polycaprolactone Glycol, polyethylene glycol adipate PPOX triol and PPOX tetrol are 1 by quality parts ratio:1:1:1 it is mixed Compound.The chain extender includes that alcohol chain extender and hydrophilic chain extender are 1 by quality parts ratio:1.2-2: 1.The alcohol chain extender It is 1,2,6- hexanetriols.The hydrophilic chain extender be diaminobenzoic acid, dihydromethyl propionic acid, ethylenediamine base ethyl sulfonic acid sodium and 1, 4- butanediol -2- sodium sulfonates are 2 by ratio of weight and the number of copies:2:1.5:3 mixture.The functional monomer contracts for methacrylic acid Water glyceride and silicone active monomer mass portion rate are 5：20.The silicone active monomer includes vinyl triethoxyl Silane, gamma-methyl allyl acyloxypropyl trimethoxysilane, vinyl front three oxosilane are 3 by quality parts ratio:7:1.5 Mixture.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 70 DEG C, and chain extender is added dropwise, and react 3.5h, then heat up To 90 DEG C of reaction 1.5h, the oligomer polyol after vacuum dehydration is then added dropwise, reacts 1.5h, add end-capping reagent, catalysis Agent, reacts 1.5h, obtains base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 40 DEG C, first Jia 30% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 0.5h, obtained To monomer pre-emulsion；
C, residual emulsifier, 40% initiator are imported in reactor, and the protection of logical nitrogen, 30% monomer pre-emulsion is added, Heat up 100 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 70% initiator solution, 2h Add complete, and add deionized water to disperse, control 85 DEG C of temperature, stir 1.5h, then cool down, pH adjusting agent is added dropwise adjusts pH value To 8.5, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：10 parts of auxiliary agent, 10 parts of deionized water and by claim 80 parts of self-cross linking type water-proof emulsion described in 1-9, the auxiliary agent include parts by weight be 3 parts of thickeners, 0.5 part of defoamer, 5 parts Wetting agent, 8 parts of coalescents, 6 parts of levelling agents, 2 parts of mould inhibitors, 0.4 part of dispersant.The thickener is TEGO ViscoPlus 3030 association water-based thickeners, the defoamer be modified polyorganosiloxane compound, the wetting agent be alkylnaphthalene sulfonate and Anion wetting agent is with quality parts ratio 0.5:3 mixture, the coalescents are alcohol compound, and the levelling agent is third Olefin(e) acid copolymer, dispersant is polymer-type anionic dispersing agents, and model Hess steps dispersant 7040, and mould inhibitor selects section's Lay Benefactor department Nipacide DFX/1 mould inhibitors.
Embodiment 5
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：20 parts of polyisocyanates, oligomer are more 20 parts of first alcohol, 15 parts of chain extender, 20 parts of end-capping reagent, 0.2 part of catalyst, 55 parts of comonomer, 5 parts of emulsifying agent, initiator 5 Part, 5 parts of pH adjusting agent, 8 parts of deionized water, comonomer are that hard monomer, soft monomer and functional monomer quality parts ratio are 20： 12：8 mixing.
Wherein, the end-capping reagent is that hydroxy-ethyl acrylate, hydroxyethyl methacrylate and caprolactam press quality parts ratio It is 1:3:6 mixture.Wherein, catalyst is tertiary amine compounds：N, N- dimethyl cyclohexyl amine.Wherein, emulsifying agent is perfluor Ammonium caprylate is 2 by quality parts ratio with lauryl sodium sulfate:7 mixture.Wherein, initiator is ammonium persulfate.Wherein, institute PH adjusting agent is stated for ammoniacal liquor.The oligomer polyol is 1,4-CHDM, polycaprolactone glycol, polyadipate second two Alcohol ester is 2 by quality parts ratio:3.5 mixture.The chain extender includes that alcohol chain extender and hydrophilic chain extender press mass fraction Than being 7:6.The alcohol chain extender be trimethylolpropane and 1,2,6- hexanetriols with quality parts ratio be 2:1.The hydrophilic expansion Chain agent be diaminobenzoic acid, ethylenediamine base ethyl sulfonic acid sodium and BDO -2- sodium sulfonates with quality parts ratio be 3:2.5:4 Mixture.The functional monomer is GMA and silicone active monomer mass portion rate is 7： 15.The silicone active monomer includes vinyl front three oxosilane.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 80 DEG C, and chain extender is added dropwise, and react 4h, are then warmed up to 100 DEG C of reaction 2h, are then added dropwise the oligomer polyol after vacuum dehydration, react 2h, add end-capping reagent, catalyst, instead 2h is answered, base polyurethane prepolymer for use as is obtained；
B, base polyurethane prepolymer for use as is cooled to 50 DEG C, first Jia 35% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 0.8h, obtained To monomer pre-emulsion；
C, residual emulsifier, 35% initiator are imported in reactor, and the protection of logical nitrogen, 25% monomer pre-emulsion is added, Heat up 90 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 65% initiator solution, 2h Add complete, and add deionized water to disperse, control 80 DEG C of temperature, stir 1.2h, then cool down, pH adjusting agent is added dropwise adjusts pH value To 7, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：20 parts of auxiliary agent, 15 parts of deionized water and by claim 100 parts of self-cross linking type water-proof emulsion described in 1-9, the auxiliary agent include parts by weight be 2.5 parts of thickeners, 0.5 part of defoamer, 5.5 parts of wetting agents, 6 parts of coalescents, 5 parts of levelling agents, 2.5 parts of mould inhibitors, 0.5 part of dispersant.The thickener is TEGO The association water-based thickeners of ViscoPlus 3030, the defoamer is modified polyorganosiloxane compound, and the wetting agent is alkyl Naphthalene sulfonate and anion wetting agent with quality parts ratio be 1:2 mixture, the coalescents are mixed for dipropylene Compound and alcohol compound are 0.5 by quality parts ratio:1 mixture, the levelling agent is polysiloxane compound, dispersant It is polymer-type anionic dispersing agents：Modified polypropene acid ammonium salt dispersant, mould inhibitor selects Clariant Corporation Nipacide DFX/1 mould inhibitors.
Embodiment 6
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：30 parts of polyisocyanates, oligomer are more 20 parts of first alcohol, 14 parts of chain extender, 26 parts of end-capping reagent, 2.0 parts of catalyst, 45 parts of comonomer, 8 parts of emulsifying agent, 9 parts of initiator, 6 parts of pH adjusting agent, 55 parts of deionized water, comonomer are that hard monomer, soft monomer and functional monomer quality parts ratio are 35： 16：13 mixing.
Wherein, the end-capping reagent be hydroxy-ethyl acrylate and hydroxyethyl methacrylate with quality parts ratio be 1:3.5 Mixture.Wherein, catalyst is the catalyst of organo-tin compound：Stannous octoate.Wherein, emulsifying agent is perfluorooctanoic acid and ten Sodium dialkyl sulfate with quality parts ratio be 3:1.5 mixture.Wherein, initiator is ammonium persulfate.Wherein, the pH regulations Agent is ammoniacal liquor.The oligomer polyol is 1,4-CHDM, polycaprolactone glycol, polyethylene glycol adipate, poly- Carbonate diol presses following quality parts ratio 4:0.1:0.5:3 mixture.The chain extender includes alcohol chain extender and hydrophilic expansion Chain agent is 1 by quality parts ratio:1.The alcohol chain extender is trimethylolpropane, glycerine, 1, and 2,6- hexanetriols press mass parts Number is than being 2:1.5:3 mixture.The hydrophilic chain extender is diaminobenzoic acid, dihydromethyl propionic acid, ethylenediamine base second sulphur Sour sodium is 0.1 by following ratio of weight and number：2:3:7:0.5 mixture.The functional monomer is that Glycidyl methacrylate is sweet Grease and silicone active monomer mass portion rate are 8：6.The silicone active monomer includes gamma-methyl allyl acyloxypropyl Trimethoxy silane.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 80 DEG C, and chain extender is added dropwise, and react 4h, are then warmed up to 100 DEG C of reaction 2h, are then added dropwise the oligomer polyol after vacuum dehydration, react 2h, add end-capping reagent, catalyst, instead 2h is answered, base polyurethane prepolymer for use as is obtained；
B, base polyurethane prepolymer for use as is cooled to 50 DEG C, first Jia 35% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 0.8h, obtained To monomer pre-emulsion；
C, residual emulsifier, 35% initiator are imported in reactor, and the protection of logical nitrogen, 25% monomer pre-emulsion is added, Heat up 90 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 65% initiator solution, 2h Add complete, and add deionized water to disperse, control 80 DEG C of temperature, stir 1.2h, then cool down, pH adjusting agent is added dropwise adjusts pH value To 7, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：10 parts of auxiliary agent, 10 parts of deionized water and by claim 80 parts of self-cross linking type water-proof emulsion described in 1-9, the auxiliary agent include parts by weight be 3 parts of thickeners, 0.5 part of defoamer, 5 parts Wetting agent, 8 parts of coalescents, 6 parts of levelling agents, 2 parts of mould inhibitors, 0.4 part of dispersant.The thickener is TEGO ViscoPlus 3030 association water-based thickeners, the defoamer be modified polyorganosiloxane compound, the wetting agent be alkylnaphthalene sulfonate and Anion wetting agent is with quality parts ratio 0.5:3 mixture, the coalescents are alcohol compound, and the levelling agent is third Olefin(e) acid copolymer, dispersant is polymer-type anionic dispersing agents, and model Hess steps dispersant 7040, and mould inhibitor selects section's Lay Benefactor department Nipacide DFX/1 mould inhibitors.
Embodiment 7
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：20 parts of polyisocyanates, oligomer are more 20 parts of first alcohol, 15 parts of chain extender, 20 parts of end-capping reagent, 0.2 part of catalyst, 55 parts of comonomer, 5 parts of emulsifying agent, initiator 5 Part, 5 parts of pH adjusting agent, 8 parts of deionized water, comonomer are that hard monomer, soft monomer and functional monomer quality parts ratio are 20： 12：8 mixing.
Wherein, the end-capping reagent be hydroxy-ethyl acrylate, hydroxyethyl methacrylate and caprolactam by ratio of weight and the number of copies It is 2:5:2.5:1 mixture.Wherein, catalyst is the catalyst of organo-tin compound：Dibutyltin diacetate.Wherein, breast Agent be perfluorooctanoic acid and lauryl sodium sulfate with ratio of weight and number be 2:3 mixture.Wherein, initiator is peroxidating It is a kind of in hydrogen.Wherein, the pH adjusting agent is ammoniacal liquor.The oligomer polyol is 1,4-CHDM, polycaprolactone Glycol, polyethylene glycol adipate PPOX triol and PPOX tetrol are 1 by quality parts ratio:1:1:1 it is mixed Compound.The chain extender includes that alcohol chain extender and hydrophilic chain extender are 1 by quality parts ratio:1.2-2: 1.The alcohol chain extender It is 1,2,6- hexanetriols.The hydrophilic chain extender be diaminobenzoic acid, dihydromethyl propionic acid, ethylenediamine base ethyl sulfonic acid sodium and 1, 4- butanediol -2- sodium sulfonates are 2 by ratio of weight and the number of copies:2:1.5:3 mixture.The functional monomer contracts for methacrylic acid Water glyceride and silicone active monomer mass portion rate are 5：20.The silicone active monomer includes vinyl triethoxyl Silane, gamma-methyl allyl acyloxypropyl trimethoxysilane, vinyl front three oxosilane are 3 by quality parts ratio:7:1.5 Mixture.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 60 DEG C, and chain extender is added dropwise, and react 3h, are then warmed up to 80 DEG C of reaction 1h, are then added dropwise the oligomer polyol after vacuum dehydration, react 1h, add end-capping reagent, catalyst, react 1h, obtains base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 60 DEG C, first Jia 40% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 1h, obtained Monomer pre-emulsion；
C, residual emulsifier, 30% initiator are imported in reactor, and the protection of logical nitrogen, 10% monomer pre-emulsion is added, Heat up 80 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 60% initiator solution, 2h Add complete, and add deionized water to disperse, control 75 DEG C of temperature, stir 1h, then cool down, pH adjusting agent is added dropwise is adjusted to pH value 6.5, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：5 parts of auxiliary agent, 2 parts of deionized water and by claim 1-9 70 parts of described self-cross linking type water-proof emulsion, the auxiliary agent includes that parts by weight are 1 part of thickener, 0.1 part of defoamer, 2 parts of profits Humectant, 5 parts of coalescents, 2 parts of levelling agents, 0.5 part of mould inhibitor, 0.1 part of dispersant.The thickener is TEGO ViscoPlus 3030 association water-based thickeners, the defoamer be modified polyorganosiloxane compound, the wetting agent be alkylnaphthalene sulfonate with Anion wetting agent with quality parts ratio be 2:0.5 mixture, the coalescents are alcohol compound, and the levelling agent is Polysiloxane compound, dispersant is polymer-type anionic dispersing agents, and model Hess steps dispersant 7040, and mould inhibitor is selected Clariant Corporation Nipacide DFX/1 mould inhibitors.
Embodiment 8
The self-cross linking type water-proof emulsion of the present embodiment includes the raw material of following parts by weight：40 parts of polyisocyanates, oligomer are more 50 parts of first alcohol, 25 parts of chain extender, 35 parts of end-capping reagent, 3 parts of catalyst, 65 parts of comonomer, 12 parts of emulsifying agent, initiator 8 Part, 10 parts of pH adjusting agent, 36 parts of deionized water, comonomer is for hard monomer, soft monomer and functional monomer quality parts ratio 43：18：18 mixing.
Wherein, the end-capping reagent is methyl ethyl ketoxime.Wherein, catalyst is the catalyst of organo-tin compound：Dibutyl tin Dilaurate.Wherein, emulsifying agent is perfluorooctanoic acid and lauryl sodium sulfate with quality parts ratio 1:The Composite Milk of 1 mixing Agent.Wherein, initiator is potassium peroxydisulfate.Wherein, the pH adjusting agent is ammoniacal liquor.The oligomer polyol is Isosorbide-5-Nitrae-hexamethylene Alkane dimethanol, polyethylene glycol adipate, PCDL and PPOX triol are 1 by quality parts ratio:1.5:2: 2.5 mixture.The chain extender includes that alcohol chain extender and hydrophilic chain extender are 1.8 by quality parts ratio:1.The alcohol chain extension Agent is trimethylolpropane.The hydrophilic chain extender is ethylenediamine base ethyl sulfonic acid sodium.The functional monomer is methacrylic acid Ethylene oxidic ester and silicone active monomer mass portion rate are 8：15.The silicone active monomer includes the ethoxy of vinyl three Base silane.
A kind of preparation method of self-cross linking type water-proof emulsion, comprises the following steps：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 70 DEG C, and chain extender is added dropwise, and react 3.5h, then heat up To 90 DEG C of reaction 1.5h, the oligomer polyol after vacuum dehydration is then added dropwise, reacts 1.5h, add end-capping reagent, catalysis Agent, reacts 1.5h, obtains base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 40 DEG C, first Jia 30% and enter emulsifying agent, then comonomer is added dropwise, quickly stir 0.5h, obtained To monomer pre-emulsion；
C, residual emulsifier, 40% initiator are imported in reactor, and the protection of logical nitrogen, 30% monomer pre-emulsion is added, Heat up 100 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise drop in remaining monomer pre-emulsion and 70% initiator solution, 2h Add complete, and add deionized water to disperse, control 85 DEG C of temperature, stir 1.5h, then cool down, pH adjusting agent is added dropwise adjusts pH value To 8.5, filtering and discharging of lowering the temperature obtains self-cross linking type water-proof emulsion.
Waterproof basement membrane includes that the raw material of following parts by weight is made：20 parts of auxiliary agent, 15 parts of deionized water and by claim 100 parts of self-cross linking type water-proof emulsion described in 1-9, the auxiliary agent include parts by weight be 2.5 parts of thickeners, 0.5 part of defoamer, 5.5 parts of wetting agents, 6 parts of coalescents, 5 parts of levelling agents, 2.5 parts of mould inhibitors, 0.5 part of dispersant.The thickener is TEGO The association water-based thickeners of ViscoPlus 3030, the defoamer is modified polyorganosiloxane compound, and the wetting agent is alkyl Naphthalene sulfonate and anion wetting agent with quality parts ratio be 1:2 mixture, the coalescents are mixed for dipropylene Compound and alcohol compound are 0.5 by quality parts ratio:1 mixture, the levelling agent is polysiloxane compound, dispersant It is polymer-type anionic dispersing agents：Modified polypropene acid ammonium salt dispersant, mould inhibitor selects Clariant Corporation Nipacide DFX/1 mould inhibitors.
Performance test
Basement membrane prepared by above-described embodiment 1-8 is tested, and is prepared using the water-proof emulsion containing single monomer self-crosslinking Basement membrane 1 tested as a comparison case, method of testing makes with the following method：
The measure of film tensile strength and elongation at break：Assay method according to IS 7016-2-1981 is determined.
Hardness of film is determined：Assay method according to GB/T 6739-2006 is determined.
Film pliability is determined：Assay method according to GB/T 1731-1993 is determined.
Film impact resistance is determined：Assay method according to GB/T 20624.1-2006 is determined.
Water-resistance property of coating is determined：Assay method according to GB/T 1733-1993 is determined.
Coatings impermeability pressure：Method of testing according to JC/T2217-2014 is determined.
The performance test results of the embodiment 1-8 of table 1 and comparative example 1（One）
　 Period of storage（Month） Tensile strength（MPa） Coating impermeability pressure（MPa） Elongation at break（%）
Embodiment 1 ≥6 11 1.5 364.7
Embodiment 2 ≥7 10.5 1.6 387.1
Embodiment 3 ≥6 10.3 1.3 384.1
Embodiment 4 ≥9 12.2 1.4 376.2
Embodiment 5 ≥7 11.4 1.5 420.2
Embodiment 6 ≥8 10.6 1.4 370.9
Embodiment 7 ≥7 11.7 1.5 393.6
Embodiment 8 ≥8 12.4 1.4 382.3
Comparative example 1 3-4 7.8 0.7 256.8
The performance test results of the embodiment 1-8 of table 2 and comparative example 1（Two）
　 Hardness Water resistance Pliability/mm Impact resistance/g*cm
Embodiment 1 H Immersion 64 hours it is non-foaming, do not fall off 0.6 500
Embodiment 2 H Immersion 64 hours it is non-foaming, do not fall off 0.5 500
Embodiment 3 H Immersion 64 hours it is non-foaming, do not fall off 0.5 500
Embodiment 4 H 64 hours surface microvesicles of immersion, do not fall off 0.6 500
Embodiment 5 H Immersion 64 hours it is non-foaming, do not fall off 0.5 500
Embodiment 6 H Immersion 64 hours it is non-foaming, do not fall off 0.6 500
Embodiment 7 H Immersion 64 hours it is non-foaming, do not fall off 0.5 500
Embodiment 8 H Immersion 64 hours it is non-foaming, do not fall off 0.6 500
Comparative example 1 B 64 hours surface blisterings of immersion, come off 0.4 365
Knowable to Tables 1 and 2, self-cross linking type water-proof emulsion prepared by the present invention realizes multiple self-crosslinking, and crosslink density is high, into Solid netted macromolecular structure, molecular weight is very big after film forming, and its anti-impact, tear resistance are compared to common self-crosslinking basement membrane more By force, good weatherability, strong with basal plane adhesion, coating is impervious strong, and with stronger pliability.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected The limitation of scope is protected, although being explained to the present invention with reference to preferred embodiment, one of ordinary skill in the art should Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention Matter and scope.

Claims (10)

1. a kind of self-cross linking type water-proof emulsion, it is characterised in that：Raw material including following parts by weight：
20~80 parts of polyisocyanates
10~60 parts of oligomer polyol
10 ~ 30 parts of chain extender
10 ~ 40 parts of end-capping reagent
0.1 ~ 5 part of catalyst
40 ~ 90 parts of comonomer
1 ~ 15 part of emulsifying agent
1 ~ 10 part of initiator
1 ~ 15 part of pH adjusting agent
5 ~ 60 parts of deionized water
Wherein, the comonomer is that hard monomer, soft monomer and functional monomer quality parts ratio are 30 ~ 50：10~20：5~20 Mixing.
2. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：Original including following parts by weight Material：
30~70 parts of polyisocyanates
15~50 parts of oligomer polyol
10 ~ 20 parts of chain extender
20 ~ 30 parts of end-capping reagent
0.1 ~ 2 part of catalyst
45 ~ 90 parts of comonomer
1 ~ 10 part of emulsifying agent
1 ~ 5 part of initiator
1 ~ 10 part of pH adjusting agent
10 ~ 50 parts of deionized water.
3. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：The oligomer polyol is 1, 4- cyclohexanedimethanols, polycaprolactone glycol, polyethylene glycol adipate, PCDL, polyoxypropyleneglycol, polyoxy Change propylene triol and PPOX tetrol it is therein one or more.
4. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：The chain extender includes alcohol chain extension Agent and hydrophilic chain extender are 1 by quality parts ratio:1.2-2: 1.
5. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：The alcohol chain extender is three hydroxyl first Base propane, glycerine, 1, in 2,6- hexanetriols one or more.
6. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：The hydrophilic chain extender is diamino In yl benzoic acid, dihydromethyl propionic acid, ethylenediamine base ethyl sulfonic acid sodium, BDO -2- sodium sulfonates and its derivative it is a kind of or It is two or more.
7. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：The functional monomer is methyl Glycidyl acrylate and silicone active monomer mass portion rate are 1-10：1-20.
8. a kind of self-cross linking type water-proof emulsion according to claim 1, it is characterised in that：The silicone active monomer bag Include VTES, gamma-methyl allyl acyloxypropyl trimethoxysilane, vinyl front three oxosilane one kind or two More than kind.
9. the preparation method of a kind of self-cross linking type water-proof emulsion described in claim 1-8, it is characterised in that：Including following step Suddenly：
A, the polyisocyanates stirring for weighing above-mentioned mass fraction are warming up to 60 ~ 80 DEG C, and chain extender is added dropwise, and react 3h ~ 4h, then 80-100 DEG C of 1 ~ 2h of reaction is warmed up to, the oligomer polyol after vacuum dehydration is then added dropwise, react 1 ~ 2h, add envelope End agent, catalyst, react 1 ~ 2h, obtain base polyurethane prepolymer for use as；
B, base polyurethane prepolymer for use as is cooled to 40 ~ 60 DEG C, first plus 30-40% enters emulsifying agent, then comonomer is added dropwise, quick stirring 0.5 ~ 1h, obtains monomer pre-emulsion；
C, residual emulsifier, 30 ~ 40% initiators are imported in reactor, and the protection of logical nitrogen, add 10 ~ 30% pre- breast of monomer Change liquid, heat up 80 ~ 100 DEG C, stirring to the micro, slight blueing of emulsion is added dropwise remaining monomer pre-emulsion and 60 ~ 70% initiator water Solution, completion of dropping in 2h, and add deionized water to disperse, and 75 ~ 85 DEG C of temperature is controlled, 1 ~ 1.5h is stirred, then cool down, it is added dropwise PH adjusting agent makes pH value be adjusted to 6.5~8.5, filtering and discharging of lowering the temperature, and obtains self-cross linking type water-proof emulsion.
10. a kind of waterproof basement membrane, it is characterised in that：Waterproof basement membrane includes that the raw material of following parts by weight is made：5 ~ 20 parts of auxiliary agent, 70 ~ 100 parts of 1 ~ 10 part of deionized water and the self-cross linking type water-proof emulsion as described in claim 1-9, the auxiliary agent include weight Number is 1-3 parts of thickener, 0.1-0.5 parts of defoamer, 2-6 parts of wetting agent, 5-9 parts of coalescents, 2-6 parts of levelling agent, 0.5- 2.5 parts of mould inhibitors, 0.1-0.5 parts of dispersants.
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CN113214449A (en) * 2021-02-01 2021-08-06 重庆门朵新材料科技有限公司 Polyurethane emulsion for manufacturing condom by wet method and preparation method thereof
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