CN102702950A - High polymer waterproof coating - Google Patents
High polymer waterproof coating Download PDFInfo
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- CN102702950A CN102702950A CN2012101916694A CN201210191669A CN102702950A CN 102702950 A CN102702950 A CN 102702950A CN 2012101916694 A CN2012101916694 A CN 2012101916694A CN 201210191669 A CN201210191669 A CN 201210191669A CN 102702950 A CN102702950 A CN 102702950A
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Abstract
The invention relates to a waterproof coating, in particular to a high polymer waterproof coating applied to building industry and a preparation method thereof. The high polymer waterproof coating comprises the following components in parts by weight: 3-20 parts of polyurethane, 0.1-5 parts of reactive polysiloxane compounds and 4-8 parts of polyvinyl alcohol, and further comprises the following components in parts by weight: 0.5-3 parts of high-melting-point polyethylene wax emulsion, 0.1-2 parts of tackifiers, 0.2-2 parts of nonionic surfactants and a defoaming agent. The high polymer waterproof coating, provided by the invention, has the characteristics of excellent high temperature resistance, low temperature resistance and shock chilling and shock heating change, good ductility and elongation at break in a wide temperature range, strong adhesive force, corrosion resistance, ageing resistance, safety and environmental friendliness, and is suitable for being coated on the surfaces of multiple substrates in building industry.
Description
Technical field
The present invention relates to waterproof paint, especially a kind of high molecular water-proof paint that is suitable for the building trade application and preparation method thereof.
Background technology
The waterproof paint that building trade is used generally is the liquid high molecular synthetic material of thickness that is no solid shape at normal temperatures, and coating forms waterproof membrane after the back is solidified in the evaporation of the volatilization of solvent or moisture or reaction in substrate surface.At present the used water-proof material of building trade generally is divided into the flexible waterproof material that comprises waterproof roll, waterproof paint, sealing cement etc. and is rigidity water-proofing material main, that add water-resisting agent and other auxiliary agents with the cement matrix.Though kind is abundant, it is poor generally to have a physical and mechanical property, and work-ing life is short, excessive with the gap in work-ing life of buildings, and range of application is narrow and small, shortcomings such as dangerous environmental protection.When being used for skin, through rain drop erosion and moisture corrode be easy to just cause at short notice aging, dry and cracked, be out of shape, fracture, layering, not only influence attractive in appearancely, and have great potential safety hazard; When being used for interior architecture such as kitchen, bathroom etc., also exist constructional difficulties, seepage to take place frequently, can't effectively protect problems such as wall.No matter indoor or outdoor, want to guarantee neat and artisticly will often spend the rebuilding of doing over again of a large amount of manpower and materials, and people's productive life order has not only seriously been upset in frequent repairing, has more aggravated the weathering process of buildings, has further shortened work-ing life.Seamless waterproof is a construction industry difficult problem worldwide, and for this reason, people have launched extensive studies.
CN 102108234A discloses a kind of colorful environment-friendly synthetic macromolecular waterproof coating, and its one-tenth by following weight part is grouped into: petroleum resin 3-7 part, SEBS 5-15 part, SBS 5-15 part; 5 10 parts of thermoplastic polyurethane elastomers, terpine resin 4-8 part, poly alpha methylstyrene 4-8 part; Tung oil 2-5 part, mica powder 10-15 part, antioxidant D 0.2-0.5 part; Antioxidant 264 0.2-0.5 part, skimmer 0.2-0.5 part, UV light absorber 0.3-0.5 part; 120# solvent 35-45 part, ethyl acetate 5-15 part, mill base 1-3 part.The colorful environment-friendly synthetic macromolecular waterproof coating of this invention has certain acid and alkali-resistance and uviolizing, heat insulation, anti-aging, and waterproof, anti-leakage performance, shortcoming are that the embrittlement phenomenon under the coldcondition is obvious, and tensile strength and elongation at break are lower.
CN 102079918A discloses a kind of building water-proof paint, and it is following that it forms weight percent: Vinyl Acetate Copolymer 30-50, ethene-vinyl acetate polymkeric substance 20-30; Kaolin 6-10, film coalescence aid 0.5-2.5, coarse whiting 6-10; Dispersion agent 0.1-3; Skimmer 0.3-0.8, silicon sol 3-8, balance of deionized water.The building water-proof paint easy construction that this invention provides, with low cost, good leak-proof effect, shortcoming are high-low temperature resistant and chemical corrosion resistance inequality, and mechanical property is also poor.
CN 101402517B discloses a kind of waterproof paint that is used for buildings waterproof, is to be prepared from through batching in A group powder, B group liquid material, and the weight proportion of A group powder, B group liquid material is 1-3:1.Each component concentration scope of A group powder is (weight is by 100%): No. 425 silicate cement 30%-80%, silica powder 10-50%, polypropene staple 1-5%, wood fiber 1-10%, organosilane powder (hydrophobic powder) 0.1-5%, nanometer grade silica 2.5-10%, wilkinite 1-15%; Each component concentration scope of B group liquid material is (weight is by 100%): elastomeric propylene acid modified resin (water-based) 10-80%, coating are with fungicidal preservative 0.5-10%, pH regulator agent 0.5-10%, water 10-40%, silicone antifoam agent 0.1-1%.The waterproof paint that is used for buildings waterproof of this invention has that ageing-resistant performance is good, bonding force is strong, the material good-extensibility, application property is good, water tight integrity is good and the advantage of mildew-resistant, anti-algae excellent performance, environmental protection; Shortcoming is that the high-low temperature resistant changing capability is poor, and elongation at break is low.
Summary of the invention
The object of the invention is; Overcome the deficiency of prior art, a kind of high molecular water-proof paint that is suitable for the building trade application that excellent high temperature resistant, low temperature resistant and suddenly cold and hot changes that has is provided, it all has good ductility and elongation at break in TR widely; Bonding force is strong; Anticorrosive anti-aging, safety and environmental protection is suitable for being coated in multiple substrate surface.Another object of the present invention is to provide the preparation method of this high molecular water-proof paint.
For achieving the above object, the present invention adopts following technical scheme:
A kind of high molecular water-proof paint comprises following component according to parts by weight:
Urethane 3-20, reactive polysiloxane compound 0.1-5, Z 150PH 4-8.
Said urethane full name is a polyurethane(s), is the general designation that contains the macromolecular cpd of repetition carbamate groups (NHCOO-) on the main chain.It is to be formed by organic diisocyanate or POLYMETHYLENE POLYPHENYLISOCYANATE and dihydroxyl or polyol addition polymerization.Except carbamate, also can contain groups such as ether, ester, urea, biuret, allophanate in the polyurethane macromolecular.Urethane described in the present invention preferably contains and can change into positively charged ion through neutralization reagent and/or quaternizing agent, and/or the functional group of cation group; Perhaps preferably contain and can change into negatively charged ion through neutralization reagent, and/or the functional group of anionic group.Said urethane can be line style also can comprise side chain, can also exist as graftomer.Urethane preferably exists as graftomer among the present invention, and this graftomer is well-known to those skilled in the art.Further, urethane is preferably used the acrylate group grafting among the present invention, and correspondingly, acrylate group is introduced in the polymkeric substance after preparation urethane primary dispersion body.
The parts by weight of said urethane are 3-20, for example can be 3-5,3.5-11,5.2-6.7,4.1-8.4,6.3-11.7,8-9,7.5-12,4-13; 10-14,9-17.5,10.5-19,15-20,16-18,3,4.5,5.7,6.9; 8.8,10.6,11.9,13.5,16,17,18.1,19.4,20; Be preferably 5-15; Further be preferably 8-12.
Said reactive polysiloxane compound gets final product so long as can form the ZGK 5 resinoid of rubber-like elasticity film, can use known any, wherein, preferred hydroxylation polydiorganosiloxane.Organic radical for containing in the hydroxylation polydiorganosiloxane does not have particular restriction, but aliphatics or aromatic series monovalence alkyl below the preferred C7.As the concrete example of the monovalence alkyl below the C7, can enumerate methyl, ethyl, butyl, hexyl, phenyl etc.Preferably, at least 50% of organic radical sum be methyl in its molecule of hydroxylation polydiorganosiloxane.Preferably; The weight-average molecular weight of hydroxylation polydiorganosiloxane (to call Mw in the following text) is more than 5000; Further be preferably 30000-1000000; For example 30000-50000,35000-120000,40000-90000,40001-300000,256791-500000,170000-687914,499999-700000,620500-840000,750000-1000000,30000,80000,150000,265050,374000,461005,567890,650178,789987,800000,970000,1000000; In preferred numerical range, can obtain best ductility and elongation at break, and emulsifying stability is good, bonding force is strong.
Reactive polysiloxane compound can use a kind or with more than 2 kinds and use separately.Reactive polysiloxane compound preferably uses with the form of emulsification.The emulsification of said reactive polysiloxane compound can be according to known method, carries out emulsion polymerization or makes through in reactive polysiloxane compound, adding emulsifying agent through in reactive polysiloxane compound monomer, adding emulsifying agent.Said emulsifying agent, can suitably select AS, nonionogenic tenside, cats product etc. a kind or 2 kinds with on use.The addition of said emulsifying agent does not have particular restriction, is 1-5 weight % with respect to the emulsion reaction system preferably, emulsification good stability that in this scope, obtains and the easy Elastic Film that forms, further preferred 2-3 weight %.
The parts by weight of said reactive polysiloxane compound are 0.1-5; It can realize best fiting effect with urethane and Z 150PH in this scope, for example can be 0.1-0.5,0.2-0.85,0.3-1.05,0.4-1,0.5-0.9,0.65-2,0.7-4.0,0.9-3.5,1.5-2.6,2.2-3.3,3-4.5,4.35-5,0.1,0.6,1.12,1.85,2.43,3.67,4,4.5,4.9,5; Be preferably 0.5-3; Further be preferably 1-2.
Among the present invention, more tough for the Elastic Film that said reactive polysiloxane compound is formed, also can in reactive polysiloxane compound or its emulsification, add more than a kind or 2 kinds of colloid silica, linking agent, curing catalysts etc.As colloid silica, can enumerate aqueous colloidal silicon-dioxide with stabilizations such as sodium ion with 0.001-0.05 μ m particle diameter.As linking agent, can enumerate organoalkoxysilane, hydrogenated methyl diene ZGK 5.As curing catalysts, can enumerate metal fatty acid salt, organo-peroxide, inorganic peroxide of reactive polysiloxane compound depolymerization etc. not being had dysgenic dialkyl tin two acylate representatives etc.
As the Z 150PH of other a kind of necessary composition in the high-molecular water paint of the present invention, preferred saponification deg is 70-100% person.The parts by weight of said Z 150PH are 4-8, in this scope, can obtain excellent in water resistance and film-forming properties, for example can be 4-6,5-7,4-8,6-7,4,5,6,7,8,4.2,5.1,7.9; Be preferably 4.5-7.5; Further be preferably 5-7.
In order further to improve its good characteristic, high-molecular water paint of the present invention can cooperate more than a kind or 2 kinds of high melting point polyethylene wax emulsification, tackifier, nonionogenic tenside, skimmer etc.
Said high melting point polyethylene wax emulsification has the effect of the anticorrosive anti ageing property that improves high-molecular water paint of the present invention, usually can with fusing point more than 100 ℃ and the ethene polymers of weight-average molecular weight 500-10000 carry out emulsification and use.In addition, also can use in the various commercially available article a kind or as high melting point polyethylene wax with more than 2 kinds and use.The parts by weight of said high melting point polyethylene wax emulsification in high-molecular water paint of the present invention are preferably 0.5-3, for example 0.5-1,0.6-1.5,0.75-0.9,0.8-1.6,0.9-1.3,0.95-2,1.2-2.5,1.45-2.7,1.25-2.95,2.6-3,0.5,0.7,1.1,1.7,1.8,1.95,2,2.01,2.2,2.4,2.6,2.8,3; Further be preferably 1-2.
Said tackifier are to use for the film forming characteristics that improves high-molecular water paint of the present invention; Can use various known tackifier; For example, polymerization oils, THIXCIN, metallic soap class (especially soap classes such as aluminium, lead, rare earth class, calcium, zinc), dimerization acids, HMP such as high polymerized linseed oil got the alkali salt of polyethylene kind, inorganic tackifier (wilkinite, silicon-dioxide etc.), brown alga acids, derivatived cellulose, polyacrylic ester and Rohm tech inc beyond the ethylene waxes etc.Tackifier can use a kind separately perhaps with also using more than 2 kinds.The parts by weight of said tackifier in high-molecular water paint of the present invention are preferably 0.1-2, for example 0.1-0.5,0.2-0.65,0.3-0.4,0.4-0.45,0.5-1,0.7-1.5,0.6-1.8,0.75-1.9,0.8-1.84,0.9-2,1.25-1.65,0.1,0.25,0.35,0.56,0.64,0.73,0.89,1.05,1.24,1.41,1.55,1.78,1.8,2; Be preferably 0.5-2; Further be preferably 1-1.5.
Said nonionogenic tenside can improve the bonding force of high-molecular water paint of the present invention; Can use various known nonionogenic tensides; For example; The ether type of Voranol EP 2001, polyoxyethylene alkyl phenyl ether, akylarylformaldehyde--condensated Soxylat A 25-7, polyox-yethylene-polyoxypropylene block copolymer, polyoxyethylene polyoxy-propylene etc.; The ether-ethers such as Soxylat A 25-7 of the Soxylat A 25-7 of glyceryl ester, the Soxylat A 25-7 of sorbitan ester, sorbitol ester; Esters such as cithrol, glyceryl ester, polyglycerol ester, sorbitan ester, propylene glycol ester, sucrose ester, nitrogen-containing surfactants such as fatty acid alkyl amide, T 46155 fatty amide, polyoxyethylene alkyl amine etc.Nonionogenic tenside can use a kind separately perhaps with also using more than 2 kinds.The parts by weight of said nonionogenic tenside in high-molecular water paint of the present invention are preferably 0.2-2, for example 0.2-0.45,0.3-0.41,0.4-0.55,0.5-1,0.73-1.56,0.64-1.08,0.85-1.09,0.8-1.8,0.9-1.9,1.25-1.95,1.4-1.5,1.6-2,0.2,0.3,0.46,0.54,0.63,0.79,0.95,1.04,1.45,1.57,1.68,1.8,1.9,2; Be preferably 0.5-1.5; Further be preferably 0.8-1.2.
Said skimmer can improve the defoaming of high-molecular water paint of the present invention; Can use various known skimmers; For example, organic binder bond or inorganic adhesive, photocatalyst, anti-flooding agent, anti-color-separated agent, gas checking prevent agent, emulsifying agent, wetting agent, dispersion agent, pH regulator agent, mineral dye, pigment dyestuff, film coalescence aid, frostproofer, fire retardant, UV light absorber, static inhibitor, inhibitor, mould inhibitor, sterilant, antiseptic-germicide, sanitas etc.
" comprising following component " of the present invention, mean it except that said component, can also comprise other components, these other components are given said carton waterproof paint different characteristic.In addition, " comprising following component " of the present invention, can also replace with enclosed " being " or " by ... process ".
The preparation method of high molecular water-proof paint according to the invention may further comprise the steps:
(1) the urethane emulsification is heated to 60-170 ℃;
(2) add reactive polysiloxane compound and stirring 1-5 hour;
(3) add Z 150PH, high-speed stirring 30-60min is cooled to room temperature.
Heating temperature in the said step (1) for example can be 60 ℃, 65 ℃, 70 ℃, 75 ℃, 81 ℃, 84 ℃, 89 ℃, 90 ℃, 98 ℃, 103 ℃, 110 ℃, 115 ℃, 122 ℃, 137 ℃, 146 ℃, 154 ℃, 169 ℃, 170 ℃; Be preferably 80-150 ℃, further be preferably 100-120 ℃.
Stir speed (S.S.) is preferably 100-300rpm in the said step (2), for example can be 100rpm, 110rpm, 120rpm, 135rpm, 142rpm, 153rpm, 160rpm, 175rpm, 184rpm, 197rpm, 200rpm, 210rpm, 220rpm, 228rpm, 236rpm, 245rpm, 250rpm, 260rpm, 271rpm, 288rpm, 299rpm, 300rpm; Further be preferably 150-250rpm.Churning time is 1-5 hour, for example can be 1,1.1,1.3,1.4,1.6,1.7,1.9,2,2.1,2.2,2.4,2.5,2.8,3,3.15,3.5,3.65,3.08,4,4.2,4.3,4.5,4.75,4.8,4.9,5 hour; Be preferably 1.5-4 hour; Further be preferably 1.5-3 hour.
Said step (3) high speed stir speed (S.S.) is preferably 500-900rpm, for example can be 500rpm, 520rpm, 565rpm, 590rpm, 600rpm, 630rpm, 650rpm, 670rpm, 700rpm, 705rpm, 723rpm, 740rpm, 750rpm, 785rpm, 795rpm, 800rpm, 810rpm, 840rpm, 850rpm, 860rpm, 870rpm, 880rpm, 890rpm, 900rpm; Further be preferably 600-800rpm.Churning time is 30-60min, for example can be 30,35,40,45,50,55,60min; Be preferably 35-55min, further be preferably 40-50min.
A kind of preparation method of high molecular water-proof paint may further comprise the steps after the optimization of process conditions:
(1) the urethane emulsification is heated to 80-150 ℃;
(2) add reactive polysiloxane compound and stir under the stir speed (S.S.) of 100-300rpm and stirred 1.5-4 hour;
(3) add Z 150PH, high-speed stirring 30-60min,, high-speed stirring 35-55min is cooled to room temperature under the stir speed (S.S.) of 500-900rpm.
A kind of preparation method of high molecular water-proof paint, its optimum technology may further comprise the steps:
(1) the urethane emulsification is heated to 100-120 ℃;
(2) add reactive polysiloxane compound and stir under the stir speed (S.S.) of 150-250rpm and stirred 1.5-3 hour;
(3) add Z 150PH, high-speed stirring 30-60min,, high-speed stirring 40-50min is cooled to room temperature under the stir speed (S.S.) of 600-800rpm.
Compared with prior art, the present invention has following beneficial effect:
1, anticorrosive, anti-aging, bonding force is strong, high temperature resistant, low temperature resistant, ductility is good, elongation at break is high, and multiple excellent properties rolls into one.
2, applied widely: as 1. to be applicable to the waterproof of interior exterior wall and the terrace of any rule or erose concrete structure and metal construction building body, heat insulation, insulation, anticorrosion, energy-conservation and decoration function.2. be applicable to the waterproof of petrochemical industry equipment, oil tank, pipeline, steel body structure and surface of plastic products pipeline, heat insulation, insulation, anticorrosion.3. construction technology: adopt spraying, roller coating or flat brush, repair kind simply, can directly repair to original appearance.4. the unlimited lamination of coating thickness, coating once just forms layer protecting film, and elasticity is excellent, seamless.Other solvent based coatings and coiled material class, solvent based, pitch ointment class water-proof material can't be realized.
3, the water-borne coatings environmentally safe is harmless, safety and environmental protection.
Down in the face of further explain of the present invention.But following instance only is a simple and easy example of the present invention, does not represent or limits rights protection scope of the present invention, and interest field of the present invention is as the criterion with claims.
Embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical case of the present invention but non-restrictive example is following:
Embodiment 1:
Prepare raw material by following weight part: urethane emulsification 3, hydroxylation polydiorganosiloxane 0.1, Z 150PH 4;
The urethane emulsification is heated to 60 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 100rpm, stirred 5 hours;
Add Z 150PH and under the stir speed (S.S.) of 500rpm high-speed stirring 60min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.51 (standard >=0.2);
Force-to-stretch: 3.83 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 495 (standard >=200);
Elongation at break under-10 ℃: 312 (standard >=100);
Elongation at break under 50 ℃: 365 (standard >=150);
Elongation at break after the uviolizing: 354 (standard >=150).
Embodiment 2:
Prepare raw material by following weight part: urethane emulsification 5, hydroxylation polydiorganosiloxane 2, Z 150PH 5;
The urethane emulsification is heated to 170 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 300rpm, stirred 1 hour;
Add Z 150PH and under the stir speed (S.S.) of 900rpm high-speed stirring 30min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.53 (standard >=0.2);
Force-to-stretch: 3.85 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 477 (standard >=200);
Elongation at break under-10 ℃: 325 (standard >=100);
Elongation at break under 50 ℃: 341 (standard >=150);
Elongation at break after the uviolizing: 339 (standard >=150).
Embodiment 3:
Prepare raw material by following weight part: urethane emulsification 10, hydroxylation polydiorganosiloxane 0.5, Z 150PH 6;
The urethane emulsification is heated to 80 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 150rpm, stirred 1.5 hours;
Add Z 150PH and under the stir speed (S.S.) of 600rpm high-speed stirring 35min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.49 (standard >=0.2);
Force-to-stretch: 3.90 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 464 (standard >=200);
Elongation at break under-10 ℃: 319 (standard >=100);
Elongation at break under 50 ℃: 353 (standard >=150);
Elongation at break after the uviolizing: 346 (standard >=150).
Embodiment 4:
Prepare raw material by following weight part: urethane emulsification 15, hydroxylation polydiorganosiloxane 5, Z 150PH 5.5;
The urethane emulsification is heated to 150 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 250rpm, stirred 4 hours;
Add Z 150PH and under the stir speed (S.S.) of 800rpm high-speed stirring 55min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.52 (standard >=0.2);
Force-to-stretch: 3.84 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 486 (standard >=200);
Elongation at break under-10 ℃: 309 (standard >=100);
Elongation at break under 50 ℃: 355 (standard >=150);
Elongation at break after the uviolizing: 348 (standard >=150).
Embodiment 5:
Prepare raw material by following weight part: urethane emulsification 20, hydroxylation polydiorganosiloxane 4.5, Z 150PH 4.5;
The urethane emulsification is heated to 100 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 200rpm, stirred 3 hours;
Add Z 150PH and under the stir speed (S.S.) of 700rpm high-speed stirring 40min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.54 (standard >=0.2);
Force-to-stretch: 3.78 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 489 (standard >=200);
Elongation at break under-10 ℃: 313 (standard >=100);
Elongation at break under 50 ℃: 351 (standard >=150);
Elongation at break after the uviolizing: 332 (standard >=150).
Embodiment 6:
Prepare raw material by following weight part: urethane emulsification 12, hydroxylation polydiorganosiloxane 3, Z 150PH 7;
The urethane emulsification is heated to 120 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 180rpm, stirred 2.5 hours;
Add Z 150PH and under the stir speed (S.S.) of 650rpm high-speed stirring 50min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.48 (standard >=0.2);
Force-to-stretch: 3.76 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 496 (standard >=200);
Elongation at break under-10 ℃: 324 (standard >=100);
Elongation at break under 50 ℃: 356 (standard >=150);
Elongation at break after the uviolizing: 330 (standard >=150).
Embodiment 7:
Prepare raw material by following weight part: urethane emulsification 8, hydroxylation polydiorganosiloxane 0.5, Z 150PH 8;
The urethane emulsification is heated to 140 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 220rpm, stirred 2 hours;
Add Z 150PH and under the stir speed (S.S.) of 750rpm high-speed stirring 45min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.46 (standard >=0.2);
Force-to-stretch: 3.67 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 463 (standard >=200);
Elongation at break under-10 ℃: 305 (standard >=100);
Elongation at break under 50 ℃: 370 (standard >=150);
Elongation at break after the uviolizing: 348 (standard >=150).
Embodiment 8:
Prepare raw material by following weight part: urethane emulsification 5, hydroxylation polydiorganosiloxane 0.3, Z 150PH 4.5;
The urethane emulsification is heated to 160 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 190rpm, stirred 3.5 hours;
Add Z 150PH and under the stir speed (S.S.) of 750rpm high-speed stirring 40min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.45 (standard >=0.2);
Force-to-stretch: 3.68 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 482 (standard >=200);
Elongation at break under-10 ℃: 292 (standard >=100);
Elongation at break under 50 ℃: 335 (standard >=150);
Elongation at break after the uviolizing: 354 (standard >=150).
Embodiment 9:
Prepare raw material by following weight part: urethane emulsification 16, hydroxylation polydiorganosiloxane 4, Z 150PH 5.5;
The urethane emulsification is heated to 130 ℃;
Add reactive polysiloxane compound and under the stir speed (S.S.) of 170rpm, stirred 2.5 hours;
Add Z 150PH and under the stir speed (S.S.) of 850rpm high-speed stirring 40min, be cooled to room temperature.
The product that present embodiment is obtained carries out performance test, and the result is following:
Bonding force: 0.45 (standard >=0.2);
Force-to-stretch: 3.75 (standard >=1.0);
Elongation at break under the room temperature (20 ℃): 469 (standard >=200);
Elongation at break under-10 ℃: 303 (standard >=100);
Elongation at break under 50 ℃: 359 (standard >=150);
Elongation at break after the uviolizing: 342 (standard >=150).
Applicant's statement, the present invention explains proportioning raw materials of the present invention and preparation process through the foregoing description, but the present invention is not limited to said ratio and preparation process, does not mean that promptly the present invention must rely on above-mentioned preparation process and could implement.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of raw material that the present invention selects for use and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (10)
1. a high molecular water-proof paint comprises following component according to parts by weight: urethane 3-20, reactive polysiloxane compound 0.1-5, Z 150PH 4-8;
Preferably, said parts by weight comprise following component: urethane 5-15, reactive polysiloxane compound 0.5-3, Z 150PH 4.5-7.5;
Further preferably, saidly comprise following component: urethane 8-12, reactive polysiloxane compound 1-2, Z 150PH 5-7 according to parts by weight.
2. high molecular water-proof paint according to claim 1 is characterized in that, said urethane contains and can change into positively charged ion through neutralization reagent and/or quaternizing agent, and/or the functional group of cation group; Perhaps contain and can change into negatively charged ion through neutralization reagent, and/or the functional group of anionic group;
Preferably, said urethane exists as graftomer; Preferably, said urethane is used the acrylate group grafting.
3. high molecular water-proof paint according to claim 1 and 2 is characterized in that, said reactive polysiloxane compound is the hydroxylation polydiorganosiloxane;
Preferably, the organic radical that contains in the said hydroxylation polydiorganosiloxane is aliphatics or the aromatic series monovalence alkyl below the C7;
Further preferably, containing at least 50% of organic radical sum in the said hydroxylation polydiorganosiloxane is methyl;
More preferably, the weight-average molecular weight in the said hydroxylation polydiorganosiloxane (to call Mw in the following text) further is preferably 30000-1000000 more than 5000.
4. according to the described high molecular water-proof paint of one of claim 1-3, it is characterized in that said reactive polysiloxane compound uses with the form of emulsification;
Preferably, adding the emulsion reaction system is the emulsifying agent of 1-5 weight %; Further preferably, adding the emulsion reaction system is the emulsifying agent of 2-3 weight %;
Preferably, contain in said reactive polysiloxane compound or its emulsification in colloid silica, linking agent, the curing catalysts more than a kind or 2 kinds.
5. according to the described high molecular water-proof paint of one of claim 1-4, it is characterized in that said Z 150PH is the Z 150PH of saponification deg at 70-100%.
6. according to the described high molecular water-proof paint of one of claim 1-5, it is characterized in that, also comprise high melting point polyethylene wax emulsification 0.5-3 according to parts by weight; Be preferably 1-2;
Preferably, said high melting point polyethylene wax emulsification be with fusing point more than 100 ℃ and the ethene polymers of weight-average molecular weight 500-10000 carry out emulsification and use;
Further preferably, also comprise tackifier 0.1-2 according to parts by weight; Be preferably 0.5-2; Further be preferably 1-1.5;
Preferably, said tackifier are that polymerization oils, THIXCIN, metallic soap class (especially soap classes such as aluminium, lead, rare earth class, calcium, zinc), dimerization acids, HMP such as high polymerized linseed oil are got a kind or at least 2 kinds mixture in the alkali salt of polyethylene kind, inorganic tackifier (wilkinite, silicon-dioxide etc.), brown alga acids, derivatived cellulose, polyacrylic ester and Rohm tech inc beyond the ethylene waxes.
7. according to the described high molecular water-proof paint of one of claim 1-6, it is characterized in that, also comprise nonionogenic tenside 0.2-2 according to parts by weight; Be preferably 0.5-1.5; Further be preferably 0.8-1.2;
Preferably; Said nonionogenic tenside is the ether type of Voranol EP 2001, polyoxyethylene alkyl phenyl ether, akylarylformaldehyde--condensated Soxylat A 25-7, polyox-yethylene-polyoxypropylene block copolymer, polyoxyethylene polyoxy-propylene etc.; The ether-ethers such as Soxylat A 25-7 of the Soxylat A 25-7 of glyceryl ester, the Soxylat A 25-7 of sorbitan ester, sorbitol ester; Esters such as cithrol, glyceryl ester, polyglycerol ester, sorbitan ester, propylene glycol ester, sucrose ester, a kind or at least 2 kinds mixture in the nitrogen-containing surfactants such as fatty acid alkyl amide, T 46155 fatty amide, polyoxyethylene alkyl amine.
8. according to the preparation method of one of claim 1-7 described high molecular water-proof paint, it is characterized in that, comprise the steps:
(1) the urethane emulsification is heated to 60-170 ℃;
(2) add reactive polysiloxane compound and stirring 1-5 hour;
(3) add Z 150PH, high-speed stirring 30-60min is cooled to room temperature.
9. the preparation method of high molecular water-proof paint according to claim 8 is characterized in that, comprises the steps:
(1) the urethane emulsification is heated to 80-150 ℃;
(2) add reactive polysiloxane compound and stir under the stir speed (S.S.) of 100-300rpm and stirred 1.5-4 hour;
(3) add Z 150PH, high-speed stirring 30-60min,, high-speed stirring 35-55min is cooled to room temperature under the stir speed (S.S.) of 500-900rpm.
10. the preparation method of high molecular water-proof paint according to claim 9 is characterized in that, comprises the steps:
(1) the urethane emulsification is heated to 100-120 ℃;
(2) add reactive polysiloxane compound and stir under the stir speed (S.S.) of 150-250rpm and stirred 1.5-3 hour;
(3) add Z 150PH, high-speed stirring 30-60min,, high-speed stirring 40-50min is cooled to room temperature under the stir speed (S.S.) of 600-800rpm.
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| CN2012101916694A CN102702950A (en) | 2012-06-12 | 2012-06-12 | High polymer waterproof coating |
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Application publication date: 20121003 |