CN101580672A - Special high-performance spray polyurethane elastic waterproof anti-corrosive paint and preparation method thereof - Google Patents
Special high-performance spray polyurethane elastic waterproof anti-corrosive paint and preparation method thereof Download PDFInfo
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Abstract
The invention discloses special high-performance spray polyurethane elastic waterproof anti-corrosive paint and a preparation method thereof. The special high-performance spray polyurethane elastic waterproof anti-corrosion paint is produced and synthesized by a component A and a component B by adopting a production technology of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint. The waterproof anti-corrosive paint has favorable elasticity and aging resistance, does not have free toluene diisocyanate and any solvent and has no pollution. The paint is suitable for the waterproof engineering of high-speed rail passenger line bridge concrete base surfaces, tunnels and culverts, and is also suitable for the waterproof engineering of other buildings and structures with higher waterproof and anti-corrosion requirements, such as roofs, basements, civil air-defense projects, metros, roads, bridges, military engineering, equipment, terraces and the like. The paint can not only carry out spray construction by using special spraying equipment but also can carry out spray scraping construction by hands.
Description
Technical field
The present invention relates to KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint prescription and preparation method thereof.
Background technology
Science and technology department of the Ministry of Railways is according to the applicable cases and " the provisional technical qualification of Passenger dedicated railway Bridge concrete bridge deck waterproof layer " the quality standard requirement to the Passenger dedicated railway Bridge structure durability of domestic and international high-speed railway bridge waterproof layer, at quarrel is arranged, there is not the quarrel concrete bridge deck, waterproof layer is divided into coiled material adds the affixing coating type, directly be used as coating type and 3 kinds of patterns of high-polymer modified pitch waterproof layer of waterproof layer. and stipulate that preceding two kinds of used coating of pattern waterproof layer are double-composition polyurethane waterproof paint, require this waterproof paint intensity to reach 3.5MPa and 6.0MPa and 16MPa respectively.
Urethane is a kind of good water-proof material.Polyurethane water-proof paint is a kind of chemical reaction type coating, how to use with two component forms.Because this class coating is directly to be become solid-stately by liquid state by chemical reaction takes place between component, produces volumetric shrinkage hardly, so be easy to form thicker waterproof coating.Although the many component polyurethane waterproof coatings that use can form the excellent waterproof layer at present,, can not satisfy requirement to bridge structure weather resistance quality standard owing to its intensity, hardness etc. are not high enough.
The waterproof paint of Xiao Shouing is basically all by national II type waterproof paint standard production in the market, have excellent waterproof effect and long working life when time on the buildings that is used for the friction interference environment, if but it is frequent and when being accompanied by the comparison high vibration and influencing on the railway of environment, tunnel, bridge, motorway and so on and the outbuilding thereof to be used for vehicle contact, be easy to take place film cracking and situation about peeling off, actual useful working life is very short.Fact proved the harsh requirement of its uniqueness is arranged for being in the vibration environment used waterproof paint on the buildings for a long time.Through a large amount of evidences, can be competent at the waterproof paint that uses on this class buildings, its tensile strength of filming should be greater than 16MPa, elongation should be greater than 450%.The exploitation of the coating that this high strength requires and the difficulty of development are big, cost is higher, the present domestic development stage of still locating.
Summary of the invention
First purpose of the present invention has been to disclose provides a kind of solid content to react the special high-performance spray type polyurethane elastic waterproof anti-corrosive paint that is shaped greater than 98 parts two component fast speed.Two components of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention are called A component and B component.
Second purpose of the present invention has been to disclose the preparation method of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint.
The 3rd purpose of the present invention has been to disclose the application of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint aspect preparation buildings, structures waterproof layer.Particularly high ferro Passenger dedicated railway Bridge concrete have quarrel aspect bridge floor, open bridge floor and the railroad bridge culvert waterproofing work application and in the application on equipment, pipeline corrosion protection, terrace, athletic ground.For realizing purpose of the present invention, the invention provides following technical scheme:
The KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint is characterized in that this coating is made up of two kinds of components of A, B, adopts the preparation method of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint synthetic:
The weight proportion of described A component is: 0～15 part of tolylene diisocyanate, 0～35 part of diphenylmethanediisocyanate, many phenyl are 0～15 part of tolyl polyisocyanates repeatedly, 30～60 parts of 2000 molecular weight propylene oxide glycol, 10～20 parts of 3000 molecular weight propylene oxide triols, 5～15 parts of 1000 molecular weight propylene oxide glycol.
The weight proportion of B component is: 5～15 parts of hydroxyl Resins, epoxy, 3.3 15～35 parts of '-two chloro-4.4 '-diphenyl methyl diamines, 0～15 part of molecular weight 300～2000 amidogen ether, 40～80 parts of propylene oxide polyether resins, 10～25 parts of face, fillers, 0.8～2.5 part of antioxidant 1010, UV light absorber UV3270.5～2.0 part, 5～8 parts of other auxiliary agents.
KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention, wherein said face, filler comprise: pigment of all kinds, titanium dioxide, kaolin, talcum powder, china clay, white carbon black, carbon black.
KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention, wherein said other auxiliary agent comprises: Defom5300 or 5600 or 6800 defoamers; Levaslip810 or 875 or 579 flow agents; Adherant1051 or catacuretin-18 or KL adhesion promoter; The plumbous promotor of stannous octoate or isocaprylic acid.
KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention, wherein in the A component diphenylmethanediisocyanate-content of NCO is 33.5%.
The preparation method of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention is characterized in that being undertaken by following step:
(1) preparation of A component;
In the reactor of band heating jacket, weight proportion by the A component under agitation adds various raw materials in proper order, under 60 rev/mins of stirrings, be warming up to 60～80 ℃, reaction 5～6h, when isocyanate group analysis on Content value near or when reaching theoretical value, be and react completely, vacuumize, deaeration, cooling discharge packing, make the A component;
(2) preparation of B component:
1. in the high speed dispersion still, add all liquid raw material in the prescription earlier, under rotating speed 400～500 commentaries on classics/min, successively add other raw material, dispersed with stirring 30min under 1000 commentaries on classics/min then in the prescription again;
2. be ground to below fineness 60 orders through sand mill again;
3. qualified B material is squeezed into dehydration degassing still, vacuumized, be heated to 90～120 ℃, dehydration deaeration 2h, phegma do not have moisture content to flow out to be the dehydration deaeration to finish;
4. squeeze into cooling reactor cooling discharge packing, make the B component;
(3) adopting spraying device special is 1.0: 1.0 with A, B component by ratio of weight and the number of copies, and spraying gets final product.
KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention is the A component with A component and B component in use by weight ratio: B component=use at 1: 1.
KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention is characterized in that both can descending brushing by normal temperature, also can be following to special-purpose spraying machine spraying application 60～65 ℃ of temperature.
KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention does not contain free tolylene diisocyanate and any solvent, has not only improved performance but also can not pollute environment.
The present invention is by regulating the raw material ratio in A, the B component, mechanical property and the purposes that can regulate its product in a big way.For example regulate in the A component-kind of various polyethers in NCO% content and A, the B component and consumption etc.
The KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint that the present invention produces, its production process efficient height, energy-conservation, cost is low, product meets the quality standard requirement to the bridge structure weather resistance of environmental protection and Ministry of Railways's " provisional technical qualification of Passenger dedicated railway Bridge concrete bridge deck waterproof layer ", can construct at normal temperatures, again can be 60～65 ℃ of following high pressure painting constructions, having overcome existing polyurethane water-proof paint exists following obviously not enough: as the unit elongation height and undercapacity, in construction process, be subjected to the external force damage easily, and should not expose use; Puncture power is extremely low; Curing speed is slow, and sagging phenomenon that facade is thick when being coated with is serious, and the construction that needs the multiple tracks construction just can reach between design thickness and the coating is long pitch time, and operating efficiency is low; To the temperature and humidity sensitivity of construction environment, when using at moist, low temperature environment, occur easily bubbling, solidify slowly even solidify, sticking power is bad etc.
Be the preferred KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint of the present invention prescription, production technique, technical performance index and using method below.
One, the weight proportion of the prescription A component of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint is:
0～10 part of tolylene diisocyanate;
0～30 part of diphenylmethanediisocyanate;
Many phenyl are 0～10 part of tolyl polyisocyanates repeatedly;
30～50 parts of 2000 molecular weight propylene oxide glycol;
10～15 parts of 3000 molecular weight propylene oxide triols;
5～10 parts of molecular weight 1000 propylene oxide glycol.
The weight proportion of B component is:
5～10 parts of many hydroxyls Resins, epoxy;
3.3 15～30 parts of '-two chloro-4.4 '-ditan diamines;
0～15 part of molecular weight 2000 amidogen ether;
40～60 parts of polyether resins;
10～20 parts of face, fillers;
1.0～2.0 parts of antioxidant 1010s;
0.5～1.5 part of UV light absorber UV327;
5～8 parts of other auxiliary agents.
Two, the production technique of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint
(1) preparation of A component
In the reactor of band heating jacket, weight proportion by the A component under agitation adds various raw materials in proper order, under 60 rev/mins of stirrings, be warming up to 60～80 ℃, react 5～6h again, when isocyanate group analysis on Content value near or when reaching theoretical value, be and react completely, the vacuumizing and defoaming cooling makes the A component.
(2) preparation of B component
1. earlier in the high speed dispersion still, add liquid starting material, under rotating speed 400～500 commentaries on classics/min, successively add other raw material, then dispersed with stirring 30min under 1000 commentaries on classics/min.
2. be ground to below fineness 60 orders through sand mill again.
3. qualified B material is squeezed into dehydration degassing still, vacuumize, be heated to 90～120 ℃, dehydration deaeration 2h.Not having the moisture outflow to be the dehydration deaeration in the phegma finishes.
4. squeeze into cooling reactor cooling discharge packing.
It is the A component by weight ratio with A component and B component in use: B component=use at 1: 1.
Three, KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint basic mechanical design feature index
| Sequence number | Project | The standard laid down by the ministries or commissions of the Central Government | Measured value |
| 1 | Solids content (%) | ≥98 | ≥98 |
| 2 | Tensile strength (MPa) | ≥16 | 20.9 |
| 3 | Elongation at break (%) | ≥450 | 481 |
| 4 | Watertightness (0.4MPa, 2h) | Waterproof | Waterproof |
| 5 | Cohesive strength (MPa) with basic unit | ≥2.5 | 3.7 |
| 6 | Ultraviolet-resistant aging (part) | Conservation rate is more than 80 parts | Conservation rate is more than 80 parts |
| 7 | Surface drying time (S) | ≤120 | ≤120 |
| 8 | -5 basic unit's stripping strengths (MPa) | ≥6.0 | 13.9 |
| 9 | Tear strength (N/mm) | ≥60 | 92.9 |
| 10 | Hardness (Shao A) | ≥90 | 90～95 |
| 11 | Shock strength (height of the fall 100cm) | Flawless, Zou Wen and peeling phenomenon | Flawless, Zou Wen and peeling phenomenon |
| 12 | Wear resistance (Akron .cm 3/1.61km) | ≤2.5 | 0.18 |
| 13 | Alkali resistance. saturated Ca (OH) 2Solution .500h | Do not have cracking, no peeling peels off | Do not have cracking, no peeling peels off |
| 14 | Water-intake rate (%) | ≤5.0 | 2.0 |
| 15 | Feasible driving the load-carrying vehicle time (h) | Can bear grounding pressure 0.6MPa in 24 hours | Can bear grounding pressure 0.6MPa in 24 hours |
Four, using method
The present invention further discloses the application of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint in building field, be applicable to that mainly high ferro Passenger dedicated railway Bridge concrete has quarrel bridge floor, open bridge floor and railroad bridge culvert waterproofing work, also is applicable to the application of the aspects such as waterproof layer of other buildings that waterproof anti-corrosion performance is had higher requirements, structures.Water proof anti-seepage aspect as anticorrosion, terrace athletic ground of the pipeline of roof of buildings and vault, civil air defense constructions and installations, subway, road and bridge, pond, equipment etc.Should be noted that in use:
1. base treatment
Newly-built concrete slab should have 7 day preserving period at least.Metal and face should be removed corrosion clean, and basal plane also should thoroughly be removed grease, dust, dirt in addition, remover, floating oar and loose top layer etc.Guarantee basal plane cleaning, drying and smooth.Encapsulation process is carried out at positions such as reservation back pouring concrete.
The surface must have good planeness, and hole, tangible hole or projection must not be arranged.If hole, tangible hole is arranged, must be in advance five to seven days.Use the early strength polymer mending mortar to mend.
2. primer construction
Before the construction, the surface should be dry, uses spraying equipment or brushing, and roll coating model carries out the primer construction.Should be even, holiday is not piled up, should not be too thick yet.If basal plane is too moist, need dry processing.
3. construction of waterproof layer:
After the primer initial set, can carry out construction of waterproof layer, spraying device special is adopted in construction.
Before construction and in the construction, use electric mixer that coating B component is fully stirred, before the spraying equipment is advanced debugging, after working well, begin to construct according to the requirement of spraying equipment.Coating construction finished 24 hours in. and should avoid weight to roll.Forbid construction when wind-force surpasses three grades, or take the necessary protection measure.
Description of drawings
Fig. 1 is a waterproof layer system structural map.1 is the spraying waterproof layer, and thickness must not be less than 2.0mm, and 2 is the primer layer of waterproof layer, and 3 is the reinforced concrete bridge deck structural sheet.
Embodiment
For simple and purpose clearly, hereinafter appropriate omission the description of known technology, in order to avoid those unnecessary details influences are to the description of technical solution of the present invention.A component wherein, the various raw materials in the B component all have commercially available.
Embodiment 1
1, the prescription of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint
The weight proportion of A component is:
Tolylene diisocyanate 0kg;
Diphenylmethanediisocyanate 30kg;
Many phenyl are tolyl polyisocyanates 8kg repeatedly;
2000 molecular weight propylene oxide glycol 30kg;
3000 molecular weight propylene oxide triol 10kg;
Molecular weight 1000 propylene oxide glycol 5kg.
The weight proportion of B component is:
Many hydroxyls Resins, epoxy 5kg;
3.3 '-two chloro-4.4 '-ditan diamines 20kg;
Molecular weight 2000 amidogen ether 2.0kg;
Propylene oxide polyether resin 40kg;
Face, filler: talcum powder 5kg, china clay 3kg, titanium dioxide 2kg, kaolin 1.75kg, white carbon black 0.15kg, carbon black 0.1kg;
Antioxidant 1010 1.0kg;
UV light absorber UV327 0.5kg;
Other auxiliary agent defoamer 68001kg, flow agent adherant10512kg, adhesion promoter KL 1kg.
Be the A component by weight ratio with A component and B component in use: B component=mix use at 1: 1 gets final product.2, the preparation technology of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint
(1) preparation of A component
In the reactor of band heating jacket, weight proportion by the A component under agitation adds various raw materials in proper order, under 60 rev/mins of stirrings, be warming up to 60 ℃, react 5h again, when isocyanate group analysis on Content value near or when reaching theoretical value, be and react completely, the vacuumizing and defoaming cooling makes the A component.
(2) preparation of B component
1. earlier in the high speed dispersion still, add liquid starting material, under rotating speed 500 commentaries on classics/min, successively add other raw material, then dispersed with stirring 30min under 1000 commentaries on classics/min.
2. be ground to below fineness 60 orders through sand mill again.
3. qualified B material is squeezed into dehydration degassing still, vacuumize, be heated to 120 ℃, dehydration deaeration 2h.Not having the moisture outflow to be the dehydration deaeration in the rotation flow liquid finishes.
4. squeeze into cooling reactor cooling discharge packing.
Be the A component by weight ratio with A component and B component in use: B component=mix use at 1: 1 gets final product.
The weight proportion of A component is:
Tolylene diisocyanate 5kg;
Diphenylmethanediisocyanate 25kg;
Many phenyl are tolyl polyisocyanates 10kg repeatedly;
2000 molecular weight propylene oxide glycol 30kg;
3000 molecular weight propylene oxide triol 12kg;
Molecular weight 1000 propylene oxide glycol 5kg.
The weight proportion of B component is:
Many hydroxyls Resins, epoxy 6kg;
3.3 '-two chloro-4.4 '-ditan diamines 18kg;
Molecular weight 2000 amidogen ether 5kg;
Propylene oxide polyether resin 50kg;
Face, filler: talcum powder 8kg, china clay 5kg, titanium dioxide 2kg, kaolin 1.75kg, white carbon black 0.15kg, carbon black 0.1kg;
Antioxidant 1010 1.5kg;
UV light absorber UV327 1.5kg;
Other auxiliary agent: defoamer 68002kg, flow agent adherant10512kg, adhesion promoter KL 1kg.Preparation technology is identical with embodiment 1.
Embodiment 3
The weight proportion of A component is:
Tolylene diisocyanate 5kg;
Diphenylmethanediisocyanate 30kg;
Many phenyl are tolyl polyisocyanates 5kg repeatedly;
2000 molecular weight propylene oxide glycol 30kg;
3000 molecular weight propylene oxide triol 10kg;
Molecular weight 1000 propylene oxide glycol 5kg.
The weight proportion of B component is:
Many hydroxyls Resins, epoxy 5kg;
3.3 '-two chloro-4.4 '-ditan diamines 15kg;
Molecular weight 2000 amidogen ether 2kg;
Propylene oxide polyether resin 40kg;
Color stuffing 12kg;
Antioxidant 1010 1.5kg;
UV light absorber UV327 1.0kg;
Other auxiliary agent: defoamer 68002kg, flow agent adherant10512kg, adhesion promoter KL 1kg.
Preparation technology is identical with embodiment 1.
The weight proportion of A component is:
Tolylene diisocyanate 0kg;
Diphenylmethanediisocyanate 20kg;
Many phenyl are tolyl polyisocyanates 10kg repeatedly;
2000 molecular weight propylene oxide glycol 60kg;
3000 molecular weight propylene oxide triol 15kg;
Molecular weight 1000 propylene oxide glycol 10kg.
The weight proportion of B component is:
Many hydroxyls Resins, epoxy 5kg;
3.3 '-two chloro-4.4 '-ditan diamines 20kg;
Molecular weight 2000 amidogen ether 0kg;
Polyether resin 60kg;
Face, filler: talcum powder 8kg, china clay 5kg, titanium dioxide 2kg, kaolin 1.75kg, white carbon black 0.15kg, carbon black 0.1kg;
Antioxidant 1010 0.8kg,
UV light absorber UV327 0.6kg;
Other auxiliary agent: defoamer 68002kg, flow agent adherant10512kg, adhesion promoter KL 1kg.Preparation technology is identical with embodiment 1.
The embodiment performance relatively
| Sequence number | Project | Embodiment 1 | |
Embodiment 3 | |
| 1 | Solids content (%) | 98 | 98.5 | 65 | 98.4 |
| 2 | Tensile strength (MPa) | 17.6 | 18.1 | 6.5 | 20.5 |
| 3 | Elongation at break (%) | 510 | 490 | 510 | 450 |
| 4 | Watertightness (0.4MPa, 2h) | Waterproof | Waterproof | Waterproof | Waterproof |
| 5 | Cohesive strength (MPa) with basic unit | 3.0 | 3.5 | Sticking power (drawing back method) 2.5Mpa | 3.7 |
| 6 | Ultraviolet-resistant aging (part) | Conservation rate is more than 80 parts | Conservation rate is more than 80 parts | Conservation rate is more than 80 parts | Conservation rate is more than 80 parts |
| 7 | Surface drying time (S) | 120 | 110 | 2h | ≤120 |
| 8 | Gel time (S) | 60 | 50 | - | ≤60 |
| 9 | Tear strength (N/mm) | 60 | 65 | 50 | ≥60 |
| 10 | Hardness (Shao A) | 92 | 91 | 92 | 90 |
| 11 | Shock strength (height of the fall 100cm) | Flawless, Zou Wen and peeling phenomenon | Flawless, Zou Wen and peeling phenomenon | Flawless, Zou Wen and peeling phenomenon | Flawless, Zou Wen and peeling phenomenon |
| 12 | Wear resistance (Akron .cm 3/1.61km) | 2.0 | 0.18 | 0.17 | 0.19 |
| 13 | Alkali resistance. saturated Ca (OH) 2Solution .500h | Do not have cracking, no peeling peels off | Do not have cracking, no peeling peels off | Do not have cracking, no peeling peels off | Do not have cracking, no peeling peels off |
| 14 | Water-intake rate (part) | 2.0 | 2.4 | 2.6 | 3.2 |
| 15 | Feasible driving the load-carrying vehicle time (h) | Can bear grounding pressure 0.6MPa in 24 hours | Can bear grounding pressure 0.6MPa in 24 hours | - | Can bear grounding pressure 0.6MPa in 24 hours |
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1, KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint is characterized in that this coating is made up of two kinds of components of A, B, adopts the preparation method of KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint synthetic:
The weight proportion of described A component is: 0～15 part of tolylene diisocyanate, 0～35 part of diphenylmethanediisocyanate, many phenyl are 0～15 part of tolyl polyisocyanates repeatedly, 30～60 parts of 2000 molecular weight propylene oxide glycol, 10～20 parts of 3000 molecular weight propylene oxide triols, 5～15 parts of 1000 molecular weight propylene oxide glycol.
The weight proportion of B component is: 5～15 parts of hydroxyl Resins, epoxy, 3.3 15～35 parts of '-two chloro-4.4 '-diphenyl methyl diamines, 0～15 part of molecular weight 300～2000 amidogen ether, 40～80 parts of propylene oxide polyether resins, 10～25 parts of face, fillers, 0.8～2.5 part of antioxidant 1010,0.5～2.0 part of UV light absorber UV327,5～8 parts of other auxiliary agents.
2, require described KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint according to right 1, wherein said face, filler comprise: pigment of all kinds, titanium dioxide, kaolin, talcum powder, china clay, white carbon black, carbon black.
3, require described KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint according to right 1, wherein said other auxiliary agent comprises: Defom5300 or 5600 or 6800 defoamers; Levaslip810 or 875 or 579 flow agents; Adherant1051 or catacuretin-18 or KL adhesion promoter; The plumbous promotor of stannous octoate or isocaprylic acid.
4, right 1 requires the preparation method of described KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint, it is characterized in that being undertaken by following step:
(1) preparation of A component;
In the reactor of band heating jacket, weight proportion by the A component under agitation adds various raw materials in proper order, under 60 rev/mins of stirrings, be warming up to 60～80 ℃, reaction 5～6h, when isocyanate group analysis on Content value near or when reaching theoretical value, be and react completely, vacuumize, deaeration, cooling discharge packing, make the A component;
(2) preparation of B component:
1. in the high speed dispersion still, add all liquid raw material in the prescription earlier, under rotating speed 400～500 commentaries on classics/min, successively add other raw material, dispersed with stirring 30min under 1000 commentaries on classics/min then in the prescription again;
2. be ground to below fineness 60 orders through sand mill again;
3. qualified B material is squeezed into dehydration degassing still, vacuumized, be heated to 90～120 ℃, dehydration deaeration 2h, phegma do not have moisture content to flow out to be the dehydration deaeration to finish;
4. squeeze into cooling reactor cooling discharge packing, make the B component;
(3) adopting spraying device special is 1.0: 1.0 with A, B component by ratio of weight and the number of copies, and spraying gets final product.
Require described KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint according to right 1, do not contain free toluene diisocyanate and any thinner in A wherein, the B component.
Right 1 requires described KT-PUP110 special high-performance spray polyurethane elastic waterproof anti-corrosive paint, both can descend brushing by normal temperature when it is characterized in that using, also can be following to special-purpose spraying machine spraying application 60～65 ℃ of temperature.
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| CN102286244A (en) * | 2011-06-20 | 2011-12-21 | 北京立高防水工程有限公司 | Protecting paint used on polyurea coating and preparation method and construction method for protecting paint |
| CN102286244B (en) * | 2011-06-20 | 2013-07-03 | 北京立高防水工程有限公司 | Protecting paint used on polyurea coating and preparation method and construction method for protecting paint |
| CN102359077A (en) * | 2011-09-30 | 2012-02-22 | 北京市政建设集团有限责任公司 | Waterproof method of blanket plate hoisting hole |
| CN102492360A (en) * | 2011-12-01 | 2012-06-13 | 常州光辉化工有限公司 | Solvent-free polyurethane wear-resistant terrace paint and preparation method thereof |
| CN102492360B (en) * | 2011-12-01 | 2014-01-29 | 常州光辉化工有限公司 | Solvent-free polyurethane wear-resistant terrace paint and preparation method thereof |
| CN103421420B (en) * | 2013-07-17 | 2015-11-18 | 中国石油天然气集团公司 | The weather-proof protective system of a kind of storage tank no-solvent polyurethane |
| CN107286828A (en) * | 2017-06-28 | 2017-10-24 | 迪美特高分子合金材料制品有限公司 | It is a kind of for the waterproof coating of bridge water discharge pipe and its preparation, brushing method |
| CN109609016A (en) * | 2018-12-05 | 2019-04-12 | 福州皇家地坪有限公司 | The superhard weather-proof Lacquer finish material of dumb light |
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Application publication date: 20091118 |