CN204740247U - Drench with rain device of performance of survey coating early open air - Google Patents
Drench with rain device of performance of survey coating early open air Download PDFInfo
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- CN204740247U CN204740247U CN201520004600.5U CN201520004600U CN204740247U CN 204740247 U CN204740247 U CN 204740247U CN 201520004600 U CN201520004600 U CN 201520004600U CN 204740247 U CN204740247 U CN 204740247U
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Abstract
The utility model provides a drench with rain device of performance of survey coating early open air, specifically, the utility model provides a coating performance measurement device of drenching with rain, the device includes: rainwater collector, rainwater collector's bottom is equipped with leads the water piping connection mouth, the switch, connect lead the water piping connection mouth with the first aqueduct of switch, the shower nozzle, connect the shower nozzle with the second aqueduct of switch, the test cabinet, the model rack, and one or polylith test model.
Description
Technical field
The utility model relates to a kind of early stage open air of coating that measures and to drench with rain the device of performance, relates to a kind of device measuring coating property particularly.
Background technology
Outer wall water-based coating is a kind of common water paint, and water paint owing to there being certain water wettability, and containing a large amount of emulsifying agents in water paint, is the most easily subject to water mitigation especially.Particularly when coating does not parch completely, when drenching with rain out of doors, very easy large area comes off, and time the external wall elastic plucking that ought outdoor use or elasticity put down painting, especially easily occurs the situation of bubbling; And when using the thick coatings such as sandstone when exterior wall, especially easily cause variable color, the problem such as come off, such as: the color of the region paint film of drenching with rain more obviously shoals or comes off, the region of not drenching with rain and less region of drenching with rain, color is significantly partially dark or paint film is complete.Have a strong impact on the quality of exterior coating, cause a large amount of complaints and do over again.
The water tolerance of water paint is mainly determined by the drying regime of reality, when the non-bone dry of water paint not completely film forming time be especially easily subject to the destruction of hydrone, resin in its water paint and filler, pigment separate by hydrone, reduce the cohesive force between molecular resin and filler, body of wall.Therefore, when the non-bone dry film forming of coating, moisture is large especially on the impact of water paint, and particularly when on outer wall water-based coating during wall, the economic loss caused is very huge.Therefore, it is very important for measuring outer wall water-based coating drying time under specific circumstances, both saves time, and saves again economy and prevents unnecessary doing over again.
In prior art, the method measuring outer wall water-based coating performance carries out the method for soaking after all adopting and coating being applied to test panel in water.But said method only can react the performance of coating roughly, and the environmental factor for other influences coating drying regime then can not embody well.In addition, in practice of construction process, coating is not in soaking state, but is in the state of drenching with rain, and each several part amount of drenching with rain is not identical.Therefore, the mode of soaking can not reflect the environment that coating is residing in actual use completely, can not simulate Action of Gravity Field when raindrop fall, this causes some problems of coating (as when the amount of drenching with rain is different, floating phenomenon appears in paint film) not reflected completely.
In sum, this area lacks a kind of a kind of method of quick, Quantitative evaluation water paint drenching with rain property of actual open air and service condition the earliest.
Utility model content
The purpose of this utility model is to provide a kind of device of a kind of quick, Quantitative evaluation water paint drenching with rain property of actual open air and service condition the earliest.
First aspect of the present utility model, provide a kind of coating and to drench with rain property detecting device, described device comprises:
Device for collecting rain water (1), the bottom of described device for collecting rain water is provided with aqueduct connector (2);
Switch (3), described switch is connected, for water yield adjusting with the aqueduct connector bottom described device for collecting rain water by aqueduct;
Connect the first aqueduct of described aqueduct connector and described switch;
Shower nozzle (4), described shower nozzle is connected with described switch by aqueduct;
Connect the second aqueduct of described shower nozzle and described switch;
Test cabinet (6), described test cabinet is the region of one and environment relative insulation, thus provides a test environment, and stretches into described test cabinet bottom described shower nozzle;
Model rack (5), described model rack is positioned in described test cabinet, and is positioned at the below of described shower nozzle, for placing test sample plate;
And one or more test sample plate (7).
In another preference, described model is 1-20 block, is preferably 5-15 block.
In another preference, described switch comprises the gear being selected from lower group: rainwater-collecting gear (closing gear), light rain gear, moderate rain gear, heavy rain gear, heavy rain gear.
In another preference, under described rainwater-collecting gear (closing gear), described device stops rainfall.
In another preference, under described light rain gear, it is 0-5mm that described device quantity of precipitation is equivalent to quantity of precipitation in 12 hours, or in 24 hours, quantity of precipitation is 0-10mm.
In another preference, under described moderate rain gear, it is 5 ~ 15mm that described device quantity of precipitation is equivalent to quantity of precipitation in 12 hours, or in 24 hours, quantity of precipitation is 10 ~ 25mm.
In another preference, under described heavy rain gear, described device quantity of precipitation is equivalent to quantity of precipitation 15 ~ 30mm in 12 hours, or in 24 hours, quantity of precipitation is 25 ~ 50mm.
In another preference, under described heavy rain gear, it is 30 ~ 70mm that described device quantity of precipitation is equivalent to quantity of precipitation in 12 hours, or in 24 hours, quantity of precipitation is 50 ~ 99.9mm.
In another preference, described switch is used for the rainwater in gatherer, is drenched with rain according to large young pathbreaker's model of rain by nozzle switch and shower nozzle.
In another preference, there is bottom described device for collecting rain water 1-15 aqueduct connector, be preferably 4-12 aqueduct connector.
In another preference, described test sample plate is without cement asbestos board.
In another preference, described test sample plate is without cement asbestos board through pretreated, and described pre-service comprises: carry out back cover edge sealing to described without cement asbestos board with oil varnish, after drying, first type surface is brushed the supporting priming paint of coating to be measured.
In another preference, described pre-service comprises: carry out back cover edge sealing to described without cement asbestos board with oil varnish, after dry 24h, first type surface is brushed the supporting priming paint of coating to be measured and maintenance 7 days.
In another preference, the surface that when described first type surface is test, coating applies.
In another preference, described device also comprises temperature control equipment, and described temperature control equipment is for regulating the temperature of described test environment.
In another preference, described device also comprises humidity control apparatus, and described humidity control apparatus is for regulating the humidity of described test environment.
In another preference, described device also comprises wind-speed adjusting device and/or volume adjusting apparatus, and described wind-speed adjusting device is for regulating the wind speed of described test environment, and described volume adjusting apparatus is for regulating the air quantity of described test environment.
Second aspect of the present utility model, provide a kind of coating and to drench with rain performance measurement method, described method comprises step:
(1) coating to be measured is provided;
(2) provide just like the proving installation described in the utility model first aspect, regulate described proving installation, make the test environment in described test cabinet consistent with the expection construction environment of described coating to be measured;
(3) described coating to be measured is placed in described test environment 1-5h, then according to the design and construction condition of described coating to be measured, described coating to be measured is applied on the first type surface of described test sample plate, form paint film coating;
(4) test sample plate after applying is placed in described test environment, carries out drying drying time according to design, after to be dried, regulate the switch of described proving installation to required gear, described test sample plate is drenched with rain experiment;
(5) after drenching with rain, the state of described paint film coating is tested, thus whether feasiblely judge this design and construction condition and design drying condition.
In another preference, described design drying time is t1, t2 and t3.
In another preference, in described step (4), described experimental period of drenching with rain is 1-5h.
In another preference, described design and construction condition comprises the one or more parameters being selected from lower group: apply thickness, coating application viscosity, coating dilution ratio, expection construction environment.
In another preference, described salt fog test comprises: water is placed in device for collecting rain water, then opens and regulates described switch, and water is sprayed from described shower nozzle according to setting rainfall.
In another preference, described water is rainwater, is preferably the rainwater collected in construction environment.
In another preference, described setting rainfall is selected from lower group: (in 12 hours, quantity of precipitation is 0-5mm to light rain, or quantity of precipitation is 0-10mm in 24 hours), (in 12 hours, quantity of precipitation is 5 ~ 15mm to moderate rain, or quantity of precipitation is 10 ~ 25mm in 24 hours), heavy rain (quantity of precipitation 15 ~ 30mm in 12 hours, or quantity of precipitation is 25 ~ 50mm in 24 hours), heavy rain (in 12 hours, quantity of precipitation is 30 ~ 70mm, or in 24 hours, quantity of precipitation is 50 ~ 99.9mm).
In another preference, described design drying time (t1, t2, t3) is selected from lower group: (1-3h, 2-6h, 12-36h), (6-10h, 14-18h, 12-36h), (24-48h, 36-60h, 60-84h).
Whether whether, in another preference, in described step (5), described test comprises: observe described paint film and whether play drum, observe described paint film and bubble, observe described paint film and come off and/or observe the whether obviously variable color of described paint film.
In another preference, described method also comprises: when drum has appearred in described paint film, judges described design and construction condition and design drying condition infeasible.
In another preference, described method also comprises: when bubbling appears in described paint film, judges described design and construction condition and design drying condition infeasible.
In another preference, described method also comprises: when coming off appears in described paint film, judges described design and construction condition and design drying condition infeasible.
In another preference, described method also comprises: when described paint film occurs obvious variable color, medium variable color or seriously grows dim, and judges described design and construction condition and design drying condition infeasible.
In another preference, described method also comprises: when described paint film is without variable color or when there is very light discolouration, judges described design and construction condition and design drying condition feasible.
In another preference, described refers to described paint film and target no color differnece without variable color.
In another preference, described very light discolouration refers to that described paint film and target have just had perceptible aberration.
In another preference, described obvious variable color refers to that described paint film and target have obvious aberration.
In another preference, described medium variable color refers to that described paint film and target have aberration clearly.
In another preference, described seriously growing dim refers to that described paint film and target have serious aberration.
The third aspect of the present utility model, provides a kind of coating application method, it is characterized in that, comprise step: apply scheme by the method as described in the utility model second aspect to coating and test; With
When test result is this design and construction condition and design drying condition is infeasible, following adjustment is carried out to described design and construction condition: increase coating application viscosity; And/or following adjustment is carried out to described design drying condition: extend described design drying time.
In another preference, the design drying time (t1, t2, t3) of described prolongation is (36h, 48h, 72h).
In another preference, described increase coating application viscosity is reduce the ratio of hydroaropic substance in coating, or increases the ratio of water tolerance auxiliary agent in coating; Preferably, described hydroaropic substance is selected from lower group: cellulose, slow curing solvent (as propylene glycol, ethylene glycol), bentonitic clay, inner smectite; Described water tolerance auxiliary agent is selected from lower group: alkali swelling type thickening agent, hydrophobically-modified alkali swollen thickener, hydrophobically modified polyurethane thickener, hydrophobically modified cellulose.
Should be understood that within the scope of the utility model, above-mentioned each technical characteristic of the present utility model and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model proving installation; Wherein 1 is device for collecting rain water, and 2 is the aqueduct connector of device for collecting rain water bottom surface, and 3 is nozzle switch, and 4 is shower nozzle, and 5 is model rack, and 6 is test cabinet, and 7 is test sample plate.
Embodiment
The present inventor, through long-term and deep research, on the basis summarizing the factor affecting drenching with rain property of coating in practice of construction process, devises a set of coating and to drench with rain performance testing device, and corresponding coating is drenched with rain performance test methods.Method of the present utility model more adequately can reflect the drying regime of coating in practice of construction process, more adequately can obtain the performance of drenching with rain of coating in practice of construction process.Based on above-mentioned discovery, inventor completes the utility model.
Term
As used herein, term " drenching with rain property of coating " or " coating drench with rain performance " refer to that outer wall water-based coating is in construction and after drying, for the tolerance performance of drenching with rain.Usually, this performance is subject to the combined influence of the series of factors such as coating application condition and coating formula itself, dry environment.
Coating is drenched with rain the determinator of performance
Drench with rain the relevant to factors such as its drying time, drying condition, time of drenching with rain, size of drenching with rain, paint film situations of performance in open air due to outer wall water-based coating, therefore, the coating that the utility model aims to provide a kind of comprehensive above each side factor is drenched with rain performance testing device, thus simply, conveniently can detect rapidly that coating is under certain drying condition and time, can noly go wrong, whether can reasonably reduction of erection time, and run into rainy weather after preventing construction and cause film defect and cause and complain and do over again.
The present inventor finds in long-term practice, affects exterior coating major influence factors that is dry and that use and comprises the following aspects:
The formula of ■ outer wall water-based coating, described formula comprises the performance such as water wettability, water tolerance of coating material therefor itself, also comprises the performance that working viscosity of coating etc. is relevant to the usage ratio of auxiliary agent;
The temperature of ■ open air;
The weather humidity of ■ open air;
The wind behaviour of ■ open air;
Therefore, the present inventor devises a kind of proving installation that comprehensively can embody above various influence factor, and corresponding method of testing.
By reference to the accompanying drawings 1, device of the present utility model is elaborated.Described coating property detecting device of drenching with rain comprises a device for collecting rain water 1, and described device for collecting rain water is positioned at described device top, is an open-top receptacle, can collect rainwater and be used for carrying out drenching with rain performance test.If unconditional capture rainwater, those skilled in the art can also pour into tap water in device for collecting rain water, or the aqueous solution that allotment is similar to the physicochemical property of local rainwater voluntarily is also poured into described device for collecting rain water, thus reach similar technique effect.
The bottom of described device for collecting rain water is provided with aqueduct connector 2, and described aqueduct connector for inserting aqueduct, thus makes described device for collecting rain water and other sprinkler parts be in connected state.Described aqueduct connector is connected with switch 3 by one first aqueduct.The not special restriction of quantity of described aqueduct connector, in another preference, has 1-15 aqueduct connector, is preferably 4-12 aqueduct connector bottom described device for collecting rain water.
Described switch 3 is connected with shower nozzle 4 by one second aqueduct.Described switch can water yield adjusting, and state when rainwater simulating nature is rained falls.Preferably, described switch has a rainwater-collecting gear, and when being adjusted to described rainwater-collecting gear, described equipment is in rainwater-collecting state, and rainwater does not fall and is all stored in described device for collecting rain water, to reach the object of collecting rainwater; Described switch preferably also has light rain gear, moderate rain gear, heavy rain gear and heavy rain gear, to regulate rainwater to fall according to different rainfall, makes it simulate the corresponding rainy process of defined on meteorology.
Test cabinet 6 top is stretched into bottom described shower nozzle 4, described rainwater is fallen to by shower nozzle in test cabinet, described test cabinet be one with environment facies to independently region, the test environment that one can not be provided to have drying varniss correlative factors such as required temperature, humidity, air quantity by the impact of environment, to control the dry run of paint film exactly.Have model rack 5 in described test cabinet 6, described model rack is positioned in described test cabinet, and is positioned at the below of described shower nozzle, for placing test sample plate; Described model rack 5 can be can the rack of holding multiple pieces test sample plate, or is multiple rack can placing monolithic test sample plate, and above-mentioned form all can be used for realizing the purpose of this utility model.
Described model rack is placed one or more test sample plate 7.The not special restriction of amount of described test sample plate, can change according to the size of described test cabinet, the quantity of model rack and the testing requirement of reality.In a preference of the present utility model, described model is 1-20 block, is preferably 5-15 block.
The kind of described test sample plate has no particular limits, be preferably without cement asbestos board, such as similar to existing national standard without cement asbestos board, preferably, described without cement asbestos board be of a size of about 30 × 20cm without cement asbestos board, under above-mentioned size, grow dim, variable color, play the phenomenons such as drum observing effect best.In another preference, described test sample plate is without cement asbestos board through pretreated, and described pre-service comprises: carry out back cover edge sealing to described without cement asbestos board with oil varnish, after drying, first type surface is brushed the supporting priming paint of coating to be measured.The object of above-mentioned process is in order to applicator surface when making the state of described test sample plate and practice of construction is more close, thus reacts the actual performance of drenching with rain of coating more accurately.In another preference, described pre-service comprises: carry out back cover edge sealing to described without cement asbestos board with oil varnish, after dry 24h, at the supporting priming paint of first type surface (surface that namely during test, coating applies) upper brushing coating to be measured and maintenance 7 days.
Temperature, humidity, the wind speed in described test cabinet is regulated in order to be more convenient for, described device can also optionally comprise the alternative means such as temperature control equipment, humidity control apparatus, wind-speed adjusting device, volume adjusting apparatus, for regulating the temperature of described test environment, humidity, wind speed and air quantity.Certainly, in reality test, also above-mentioned regulating device can be omitted in described proving installation, and in actual test process, adopt more existing device to regulate the environment in test cabinet to make it reach required environment, such as, in test cabinet, put into small-sized fans regulate the wind speed, air quantity etc. of test cabinet, or put in test cabinet humidifier with the humidity of adjusting ambient, put into refrigerating/heating device with adjusting ambient temperature.After the technical solution of the utility model is revealed, these changes above-mentioned are all that those skilled in the art can accomplish in conjunction with this area general knowledge.
Measure the method for drenching with rain property of outer wall water-based coating
The utility model additionally provides method that is a kind of and the drenching with rain property of mensuration coating of the utility model matched with devices, and described method comprises step:
(1) provide a coating to be measured, described coating to be measured is allocated according to component design, reaches state needed for construction to make coating.
(2) proving installation described in is provided, regulates described proving installation, make the test environment in described test cabinet consistent with the expection construction environment of described coating to be measured; Such as, the parameter such as temperature, humidity and air quantity is consistent with temperature on the spot, humidity and the air quantity in expection construction environment.
(3) described coating to be measured is placed in described test environment a period of time, make its state consistent with test environment, then according to the design and construction condition of described coating to be measured, described coating to be measured is applied on the first type surface of described test sample plate, forms paint film coating; Usually, place the temperature that 1-5h can make coating, the states such as humidity are consistent with test environment.
(4) test sample plate after applying is placed in described test cabinet, make it be in test environment, carry out drying, after to be dried drying time according to design, regulate the switch of described proving installation to required gear, described test sample plate is drenched with rain experiment;
(5) after drenching with rain, the state of described paint film coating is tested, thus whether feasiblely judge this design and construction condition and design drying condition.
In preferred embodiment of the present utility model, for often kind of coating to be measured, three groups of test groups can be set, adopt different design drying time t1, t2 and t3 respectively, thus judge the length of testing speech needed for coating better.In preferred embodiment of the present utility model, described design drying time (t1, t2, t3) is selected from lower group: (1-3h, 2-6h, 12-36h), (6-10h, 14-18h, 12-36h), (24-48h, 36-60h, 60-84h).Generally speaking, for scumbling product (as coating such as elasticity popular on the market flat painting, multicolor finish, non-resilient flat painting products), (t1, t2, t3) can be set as (1-3h, 2-6h, 12-36h); For thick painting product (as coating such as sand shellac varnish, true mineral varnish, textured paint, plucking paints), (t1, t2, t3) can be set as (6-10h, 14-18h, 12-36h).Above-mentioned design to be only scope generally drying time, those skilled in the art can based on above-mentioned universal law, to special circumstances (such as, humidity is comparatively large or coating water wettability is better) under drying time make suitable adjustment, as the design drying time as described in extending or shortening.
In the utility model method, described design and construction condition comprises the one or more parameters being selected from lower group: apply thickness, coating application viscosity, coating dilution ratio, expect that construction environment etc., those skilled in the art also can add other design and construction condition according to the kind of coating.
In a preferred embodiment of the present utility model, described salt fog test comprises: water is placed in device for collecting rain water, then opens and regulates described switch, and water is sprayed from described shower nozzle according to setting rainfall.Described water is rainwater, is preferably the rainwater collected in construction environment.Described time span of drenching with rain has no particular limits, generally, time of drenching with rain is selected according to the reagent situation of construction environment, such as, if construction seasons is spring, the time of drenching with rain can be 18-30h (being preferably 24h), if construction seasons is summer, winter, the time of drenching with rain can be able to be 48 hours-72 hours for 10-14 hour (being preferably 12h), autumn, plum rain season can be drenched with rain the time (being preferably 160-175h) by proper extension, can think and can reflect the situation of coating under practice of construction environment.
In another preference, described setting rainfall is selected from lower group: (in 12 hours, quantity of precipitation is 0-5mm to light rain, or quantity of precipitation is 0-10mm in 24 hours), (in 12 hours, quantity of precipitation is 5 ~ 15mm to moderate rain, or quantity of precipitation is 10 ~ 25mm in 24 hours), heavy rain (quantity of precipitation 15 ~ 30mm in 12 hours, or quantity of precipitation is 25 ~ 50mm in 24 hours), heavy rain (in 12 hours, quantity of precipitation is 30 ~ 70mm, or in 24 hours, quantity of precipitation is 50 ~ 99.9mm).
When drench with rain terminate after, the state of described paint film coating need be observed, with judge these execution conditions and drying time whether feasible.Whether whether described observation comprises: observe described paint film and whether play drum, observe described paint film and bubble, observe described paint film and come off and/or observe the whether obviously variable color of described paint film.
Usually, when described paint film occurred rousing, bubble, come off time, described design and construction condition and design drying condition are infeasible, should proper extension drying time, or make change to the formula of coating.In a kind of preferred implementation of the present utility model, when running into above-mentioned situation, the drying time of coating can be increased, simultaneously, by water-retaining property material wherein, material as larger in the water absorbing capacity such as cellulose, bentonitic clay and high boiling solvent: the consumption as materials such as propylene glycol, 12 carbon ester alcohol reduces.In addition, when described paint film occurs obvious variable color, medium variable color or seriously grows dim, described design and construction condition and design drying condition are also infeasible.Only have and do not rouse when described paint film has not existed, bubble, come off, and without variable color or when there is very light discolouration, described design and construction condition and design drying condition feasible.
Described can judge according to following table without situations such as variable color, light discolourations, obviously variable color:
| Standard | Remarks |
| Without variable color | To drench with rain plate and target no color differnece |
| Very light discolouration | Drench with rain plate and target has just had perceptible aberration |
| Obvious variable color | Drench with rain plate and target has obvious aberration |
| Medium variable color | Drench with rain plate and target has aberration clearly |
| Seriously grow dim | Drench with rain plate and target has serious aberration |
In preferred embodiment of the present utility model, described method of testing comprises the steps:
(a) get n block 30cmx20cm without cement asbestos board, carry out back cover edge sealing with oil varnish, stand-by after dry 24h;
B () prepares testing sample and painting tool: common coating: wool brush one handle or common roller; Galling paint: plucking roller; Sandstone coating: sandstone coating spray gun special or batch cutter;
Coating is adjusted to suitable working viscosity by c dilution ratio that () specifies according to coating instructions;
D the dilute sample of step (c) is placed in test environment more than 2 hours by (), afterwards according to the construction method specified in coating instructions and consumption by coating paint sheet asbestos;
E () difference is dry regular hour t1, t2, t3 situation of change under the test environment, then carry out at special purpose device of the present utility model water (rainwater is collect the rainy day) of drenching with rain, rainwater is under light rain, moderate rain, heavy rain measure three kinds of different rainwater situations respectively, and different drying time and difference are drenched with rain the situation of change of time paint film.
F the situation of () viewing paint film is tested, paint film without foaming, come off and obviously variable color be then considered as qualified; Accordingly can determine suitable consumption and suitable drying time;
In a preference, get 5KG sandstone paint sample paint with after mass ratio dilution 2% to suitable working viscosity, by dilution after sample paint, handle well 30*20cm be placed in test environment more than 2 hours without cement asbestos board 3 pieces and sandstone coating spray gun special, added to by sample in sandstone coating spray gun special, the dose and method specified to specifications carries out spraying to 3 pieces without on cement asbestos board; Difference dry 8h, 16h, 24h under the test environment, the adjustment of amount of rainfall is carried out according to the amount of the light rain of national national regulation, drench with rain after adjustment, test the situation of 3 hours, 8 hours, 24 hours paint films respectively, and record the situation of change of coating surface, if have come off, variable color, rise drum, cannot outdoor construction be carried out in such a situa-tion, need extend drying time; If paint film is no abnormal, color can directly be constructed under not changing and such condition being described, to formula and drying condition without the need to improving.
In an embodiment, in step (a), according to the condition of setting, need to select n=9, prepare 9 pieces of models according to the condition of (a).
In an embodiment, the sample in step (b) is sandstone coating, and instrument is sandstone coating spray gun special.
In an embodiment, in step (c), described dilution ratio is 2%, and suitable working viscosity is 180dps.
In an embodiment, in step (d), construction method is spraying, and consumption paint amount is 3.5kg/m
2.
In an embodiment, in step (d), drying time is 8 hours, 16 hours, 24 hours.
In an embodiment, in step (f), the condition of drenching with rain is light rain, and the time of drenching with rain is 3 hours.
Observe the situation of change of film, and record the situation of change of film, and dry wait paint film bone dry under similarity condition respectively, if paint film is without foaming, a drum and come off, and color without significant change time, product can directly be constructed with this understanding, does not worry raining grade for adverse condition; When bubbling, playing drum and come off or color generation significant change appears in paint film, when having influence on the performance of water paint, need adjusting drying time, or formula is modified, reduce the drying time of paint film.
The method of adjustment of drenching with rain property of coating
The utility model additionally provides a kind of method of adjustment of drenching with rain property of coating, and described method comprises:
Measure drenching with rain property of coating according to method described in the utility model, if the drying condition that the drenching with rain property of coating makes described coating cannot reach required, adopt the drenching with rain property of following recondition measure adjustment outer wall water-based coating:
In described coating by formula in hydroaropic substance as cellulose, slow curing solvent such as propylene glycol, ethylene glycol equal solvent reduce under the prerequisite not affecting performance, or substitute with the better auxiliary agent of water tolerance, to reach the use under required drying condition, or will extend drying time, to ensure the performance of paint film.
In an embodiment, when outer wall water-based coating drench with rain drench with rain under certain conditions time, paint film there occurs bubble, plays drum, when coming off, cellulosic amount is before reduced by 50%, adopt water-tolerant alkali swelling type thickening agent to substitute, make described coating reach desired properties.
Advantage of the present utility model is as follows:
In order to provide a kind of outer wall water-based coating the shortest drying time, and under the weather conditions such as summer, winter, rainy season, need how long could carry out safe construction out of doors, the utility model provides a kind of detection method of drenching with rain, detect under different rainy conditions and different drying conditions, the method of testing of the relatively concrete time that paint film can not have troubles, and formula personnel are when carrying out open air drenching with rain property test, improve the method for adjustment of outdoor drenching with rain property.Whether this method is simple, convenient, can construct under can judging certain weather condition fast, reduces that coating has occurred after construction rousing, bubbles, come off the problems such as variable color, can be widely used in water paint.
As no specific instructions, various raw material of the present utility model all can be obtained by commercially available; Or prepare according to the conventional method of this area.Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the meaning be familiar with identical.In addition any method similar or impartial to described content and material all can be applicable in the utility model method.Other aspects of the present utility model, due to disclosure herein, are apparent to those skilled in the art.
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.The experimental technique of unreceipted actual conditions in the following example, measures according to national standard usually.If there is no corresponding national standard, then according to general international standard, normal condition or carry out according to the condition that manufacturer advises.Unless otherwise indicated, otherwise all numbers are weight portion, and all number percent is weight percentage, and described polymer molecular weight is number-average molecular weight.
Unless otherwise defined or described herein, all specialties used herein and scientific words and those skilled in the art the meaning be familiar with identical.In addition any method similar or impartial to described content and material all can be applicable in the utility model method.
By following Standards for Testing Materials performance:
" exterior wall coating material of synthetic resin emulsion national standard (GB) GB/T 9755-2001 ".
" elastic building paint industry standard JG/T 172-2005 "
" exterior wall coating material of synthetic resin emulsion industry standard JG/T 24-2000 "
Embodiment 1
trickle detects
Searching by data, rain quantitative statistics:
Below in all embodiments, all take the evaluating standard of 12 hours
pick-up unit
Provide a kind of a kind of device measuring coating adhesion property as shown in Figure 1, described device comprises:
Device for collecting rain water 1, the bottom of described gatherer 1 is provided with 8 can the mouth of pipe of water receiving pipe, for by the rainwater in gatherer, is drenched with rain according to large young pathbreaker's model of rain by nozzle switch and shower nozzle.
Described switch 3 is for the amount of adjusting water outlet, corresponding with the kind reached with rain.
Described shower nozzle 4 can make to fall like water imitation rainwater state dotted line.
Described model rack 5 is positioned at below shower nozzle 4, for placing test sample plate.
Embodiment 2
sandstone uniform thickness is coated with product
Get 5KG sandstone paint sample paint with after mass ratio dilution 2% to suitable working viscosity, by dilution after sample paint, handle well 30*20cm be placed in test environment more than 2 hours without cement asbestos board 9 pieces and sandstone coating spray gun special, added to by sample in sandstone coating spray gun special, the dose and method specified to specifications carries out spraying to 9 pieces without on cement asbestos board; Difference dry 8h, 16h, 24h under the test environment, the adjustment of amount of rainfall is carried out according to the amount of the light rain of national regulation, after adjustment, model is placed on sample plate frame and drenches with rain, test the situation of 3 hours, 8 hours, 24 hours paint films respectively, and record the situation of change of coating surface, if have foaming, play drum, come off, obvious variable color is there is after drying, outdoor construction cannot be carried out in such a situa-tion, need to carry out drying time extending or changing formula, the drying time of change paint film; If paint film is no abnormal, color can directly be constructed under not changing and such condition being described, to formula and drying condition without the need to improving.
Embodiment 3
flat painting waits scumbling product
Get 2KG sample paint with after mass ratio dilution 5% to suitable working viscosity, by dilution after sample paint, handle well 30*20cm be placed in test environment more than 2 hours without cement asbestos board 9 pieces and roller, the dose and method specified to specifications carries out roller coat and is coated onto 9 pieces without on cement asbestos board; Difference dry 2h, 4h, 24h under the test environment, the adjustment of amount of rainfall is carried out according to the amount of the moderate rain of national regulation, after adjustment, model is placed on sample plate frame and drenches with rain, test the situation of 3 hours, 8 hours, 24 hours paint films respectively, and record the situation of change of coating surface, if have foaming, play drum, come off, obvious variable color is there is after drying, outdoor construction cannot be carried out in such a situa-tion, need to carry out drying time extending or changing formula, the drying time of change paint film; If paint film is no abnormal, color can directly be constructed under not changing and such condition being described, to formula and drying condition without the need to improving.
The decision method of paint film:
In the utility model, described metachromatism can be judged by visual inspection as shown in the table:
| Standard | Remarks |
| Without variable color | To drench with rain plate and target no color differnece |
| Very light discolouration | Drench with rain plate and target has just had perceptible aberration |
| Obvious variable color | Drench with rain plate and target has obvious aberration |
| Medium variable color | Drench with rain plate and target has aberration clearly |
| Seriously grow dim | Drench with rain plate and target has serious aberration |
This method object is to test the performance test imitated the actual open air of outer wall water-based coating and drench with rain, the concrete method of testing of showering is related in this method, the actual performance drenched with rain in simple, the convenient open air can testing outer wall water-based coating of this method, can measure according to the environmental baseline of reality, better outdoor construction be carried out to the guidance of practicality.
In sum, described method can simple and fast test out outer wall water-based coating product, the shortest drying time under various rainy day condition, provide better suggestion to construction team, with reduce product occur bad risk.
The foregoing is only preferred embodiment of the present utility model, and be not used to limit substantial technological context of the present utility model, substantial technological content of the present utility model is broadly defined in the right of application, any technology entities that other people complete or method, if with application right define identical, also or a kind of change of equivalence, be all covered by being regarded as among this right.
The all documents mentioned at the utility model are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present utility model.
Claims (10)
1. measure the early stage open air of coating to drench with rain the device of performance, it is characterized in that, described device comprises:
Device for collecting rain water (1), the bottom of described device for collecting rain water is provided with aqueduct connector (2);
Switch (3), described switch is connected, for water yield adjusting with the aqueduct connector bottom described device for collecting rain water by aqueduct;
Connect the first aqueduct of described aqueduct connector and described switch;
Shower nozzle (4), described shower nozzle is connected with described switch by aqueduct;
Connect the second aqueduct of described shower nozzle and described switch;
Test cabinet (6), described test cabinet is the region of one and environment relative insulation, thus provides a test environment, and stretches into described test cabinet bottom described shower nozzle;
Model rack (5), described model rack is positioned in described test cabinet, and is positioned at the below of described shower nozzle, for placing test sample plate;
And one or more test sample plate (7).
2. device as claimed in claim 1, it is characterized in that, described switch comprises the gear being selected from lower group: rainwater-collecting gear, light rain gear, moderate rain gear, heavy rain gear, heavy rain gear.
3. device as claimed in claim 1, is characterized in that having 1-15 aqueduct connector bottom described device for collecting rain water.
4. device as claimed in claim 1, it is characterized in that, described test sample plate is without cement asbestos board.
5. device as claimed in claim 4, is characterized in that, described test sample plate be coated with supporting prime coat without cement asbestos board.
6. device as claimed in claim 4, is characterized in that, described test sample plate be have oil varnish back cover bead layer without cement asbestos board.
7. device as claimed in claim 1, it is characterized in that, in described device, described model is 1-20 block.
8. device as claimed in claim 1, it is characterized in that, described device also comprises temperature control equipment, and described temperature control equipment is for regulating the temperature of described test environment.
9. device as claimed in claim 1, it is characterized in that, described device also comprises humidity control apparatus, and described humidity control apparatus is for regulating the humidity of described test environment.
10. device as claimed in claim 1, it is characterized in that, described device also comprises wind-speed adjusting device and/or volume adjusting apparatus, and described wind-speed adjusting device is for regulating the wind speed of described test environment, and described volume adjusting apparatus is for regulating the air quantity of described test environment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004600.5U CN204740247U (en) | 2015-01-04 | 2015-01-04 | Drench with rain device of performance of survey coating early open air |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004600.5U CN204740247U (en) | 2015-01-04 | 2015-01-04 | Drench with rain device of performance of survey coating early open air |
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| CN204740247U true CN204740247U (en) | 2015-11-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823867A (en) * | 2015-01-04 | 2016-08-03 | 立邦涂料（中国）有限公司 | Device for determining early-stage outdoor raining performance of coating and method thereof |
| CN107643361A (en) * | 2016-07-22 | 2018-01-30 | 立邦涂料（中国）有限公司 | A kind of apparatus and method assessed ground product bubble and produce performance |
| CN110346543A (en) * | 2019-06-04 | 2019-10-18 | 浙江和谐光催化科技有限公司 | A kind of photocatalytic self-cleaning coating function method used for building exterior wall |
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2015
- 2015-01-04 CN CN201520004600.5U patent/CN204740247U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823867A (en) * | 2015-01-04 | 2016-08-03 | 立邦涂料（中国）有限公司 | Device for determining early-stage outdoor raining performance of coating and method thereof |
| CN107643361A (en) * | 2016-07-22 | 2018-01-30 | 立邦涂料（中国）有限公司 | A kind of apparatus and method assessed ground product bubble and produce performance |
| CN110346543A (en) * | 2019-06-04 | 2019-10-18 | 浙江和谐光催化科技有限公司 | A kind of photocatalytic self-cleaning coating function method used for building exterior wall |
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