CN105949885A - Covering liquid, covering coating and preparation method and application of covering liquid - Google Patents
Covering liquid, covering coating and preparation method and application of covering liquid Download PDFInfo
- Publication number
- CN105949885A CN105949885A CN201610390282.XA CN201610390282A CN105949885A CN 105949885 A CN105949885 A CN 105949885A CN 201610390282 A CN201610390282 A CN 201610390282A CN 105949885 A CN105949885 A CN 105949885A
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- China
- Prior art keywords
- liquid
- covering
- preservative
- maskant
- wetting agent
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/008—Temporary coatings
Abstract
The invention discloses covering liquid. The covering liquid contains 5-50 wt% of water-soluble starch, 0.1-1 wt% of preservative, 49-94.9 wt% of water and 0-2 wt% of a wetting agent according to 100 wt% of the total weight. The covering liquid has good sprayability, film-forming performance and storage stability.
Description
Technical field
It relates to one covers liquid, maskant and its preparation method and application.
Background technology
During Motor Maintenance, spraying paint of automobile is generally carried out in combined padding and drying system, the quality of combined padding and drying system
Quality for automotive lacquer is particularly important.Combined padding and drying system in use, can because paint splash,
The reasons such as aggressive solvent volatilization or high-temperature baking, produce loss.
Industry does not still have a kind of simple and effective technical scheme can provide protection for combined padding and drying system, to subtract at present
Its loss slow.
Accordingly, it would be desirable to develop a kind of new technical scheme that can be used for protecting combined padding and drying system.
Summary of the invention
The disclosure provides one to cover liquid, and this covers liquid and may be used for protecting combined padding and drying system.
Some aspect of the disclosure provides one to cover liquid, with the described gross weight of liquid of covering by 100wt.%
Meter, comprises: the water soluble starch of 5-50wt.%, and the molecular weight of described water soluble starch is 500-5000；
The preservative of 0.1-1wt.%；The water of 49-94.9wt.%；Wetting agent with 0-2wt.%.
Some aspect of the disclosure provides a kind of method covering liquid described in preparation, including step: by institute
State each composition mixing covering liquid.
Some aspect of the disclosure provides a kind of maskant, comprises: cover liquid described in coated.
Some aspect of the disclosure provides a kind of method preparing maskant, including step: coating institute
State and cover liquid.
Some aspect of the disclosure provide a kind of described in cover liquid application in baking vanish covers.
Some aspect of the disclosure provides the application in baking vanish covers of a kind of described maskant.
What the disclosure provided covers liquid, has good sprayability, film property and storage stability.This
The open maskant provided, has good scavenging.
Detailed description of the invention
Should be appreciated that in the case of without departing from the scope of the present disclosure or spirit, those skilled in the art
Other various embodiments can be imagined according to the teaching of this specification and it can be modified.Cause
This, the most restrictive meaning of detailed description below.
Except as otherwise noted, the expression characteristic size that otherwise uses in specification and claims, number
All numerals of amount and physicochemical characteristic are all construed as being the most all to be come by term " about "
Modify.Therefore, unless indicated to the contrary, otherwise in description above and appended claims
The numerical parameter listed is all approximation, and those skilled in the art can utilize religion disclosed herein
Lead the desirable characteristics that content seeks to obtain, suitably change these approximations.The numerical value model represented with end points
The use enclosed include all numerals in the range of this and should in the range of any scope, such as, 1 to
5 include 1,1.1,1.3,1.5,2,2.75,3,3.80,4 and 5 etc..
Cover liquid
According to some detailed description of the invention, what the disclosure provided covers liquid, with the described gross weight covering liquid
Based on 100wt.%, comprise: the water soluble starch of 5-50wt.%, the molecular weight of described water soluble starch
For 500-5000；The preservative of 0.1-1wt.%；The water of 49-94.9wt.%；Moistening with 0-2wt.%
Agent.
What the disclosure provided covers liquid, has good sprayability, film property and storage stability.
Water soluble starch
The described liquid that covers includes appropriate water soluble starch, can make described in cover liquid and have good
Film property.
According to some detailed description of the invention, the molecular weight of described water soluble starch is 500-5000, preferably
800-2000。
According to some detailed description of the invention, described water soluble starch can be selected and form sediment purchased from cloud peak, Nantong City
SD-500, SD-1000 and SD-5000 of company of powder company limited.
According to some detailed description of the invention, by the described gross weight of liquid of covering based on 100wt.%, described water
The content of soluble starch is 5-50wt.%, preferably 15-20wt.%.Content when described water soluble starch
During for 5-50wt.%, described in cover liquid there is good film property and sprayability.
Preservative
Cover in liquid described, described preservative can make described in cover liquid there is good stable storing
Property.
According to some detailed description of the invention, described preservative may include that Buddhist nun's platinum esters preservative (example
Such as ethyl hydroxybenzoate, propylparaben, soluble metyl hydroxybenzoate etc.), benzoic acid and its esters preservative
(such as sodium benzoate etc.) and sorbic acid and its esters preservative (such as potassium sorbate, sorbic acid
Calcium etc.) at least one.According to some detailed description of the invention, described preservative is Buddhist nun's platinum ester
Class preservative.According to some detailed description of the invention, described Buddhist nun's platinum esters preservative can be selected and purchase
D401 from Jinan De Nan Chemical Co., Ltd..
According to some detailed description of the invention, by the described gross weight of liquid of covering based on 100wt.%, described anti-
The content of rotten agent is 0.1-1wt.%.When the content of described preservative is 0.1-1wt.%, described in cover
Liquid has good storage stability and film property.
Water
Cover in liquid described, described water act as disperse medium.
According to some detailed description of the invention, described water can be deionized water.
According to some detailed description of the invention, by the described gross weight of liquid of covering based on 100wt.%, described water
Content be 49-94.9wt.%.When the content of described water is 49-94.9wt.%, described in cover liquid tool
There are good sprayability and film property.
Wetting agent
Cover in liquid described, it is also possible to optionally include wetting agent.Described wetting agent can make screening
Cover the film property of liquid more preferably, film forming evenly.
According to some detailed description of the invention, described wetting agent includes: acetylenic wetting agent (such as acetylenic glycols),
Polyalcohols wetting agent (such as glycerol, tetramethylolmethane) and polyether polyols alcohols wetting agent are (such as
Polyoxypropyleneglycol, polytetrahydrofuran diol) at least one.According to some specific embodiment party
Formula, described wetting agent is acetylenic wetting agent.According to some detailed description of the invention, described acetylenic wetting agent
The 2105-3 purchased from Shenzhen Oceanpower New Materials Technology Co., Ltd. can be selected.
According to some detailed description of the invention, by the described gross weight of liquid of covering based on 100wt.%, described profit
The content of humectant is 0-2wt.%.
The method that liquid is covered in preparation
According to some detailed description of the invention, can be by the described each composition mixing covering liquid, to be hidden
Cover liquid.About the description of the described each composition covering liquid, see this specification "Cover liquid" part.
According to some detailed description of the invention, can be at ambient temperature (about 25 DEG C) and normal pressure (about 1
Individual atmospheric pressure) under conditions of, each composition that preparation is covered liquid adds in glass or rustless steel container
Mixing, to obtain covering liquid.
Maskant
According to some detailed description of the invention, the maskant that the disclosure provides, comprise: coated basis
What disclosure provided covers liquid.
About the description of the described each composition covering liquid, see this specification "Cover liquid" part.
The maskant that the disclosure provides, has good scavenging.
The method preparing maskant
According to some detailed description of the invention, can be coated with disclosure offer covers liquid, to be covered
Coating.According to some detailed description of the invention, the liquid that covers that the disclosure provides can be coated on base material,
To obtain maskant.According to some detailed description of the invention, can be coated with spraying, roller coat, brushing etc.
The liquid that covers that the disclosure is provided by cloth method is coated on base material.According to some detailed description of the invention, can
In the way of with spraying, the liquid that covers that the disclosure provides is coated on base material.
According to some detailed description of the invention, described base material includes: painted surface base material, aluminum base material,
Galvanized sheet base material, in stainless steel substrate, organic soft and hard surfaces base material and inorganic soft and hard surfaces base material extremely
Few one.
Cover the application of liquid and maskant
According to some detailed description of the invention, can the disclosure be provided covers liquid and maskant application
Covering in baking vanish, concrete grammar is as follows:
Spray to equably, on the inwall that combined padding and drying system needs to cover, cover to be formed by covering liquid with spray gun
Coating.After maskant is formed, in combined padding and drying system, vehicle is carried out baking vanish.Treat that baking vanish process completes
After, with the maskant on the rag wiping combined padding and drying system inwall of moistening, thus will splash during baking vanish
Baking vanish on maskant is removed together with maskant from the inwall of combined padding and drying system.
Following detailed description is intended to exemplarily and in non-limiting manner illustrate the disclosure.
Detailed description of the invention 1 is that one covers liquid, by the described gross weight of liquid of covering based on 100wt.%,
It comprises: the water soluble starch of 5-50wt.%, and the molecular weight of described water soluble starch is 500-5000；
The preservative of 0.1-1wt.%；The water of 49-94.9wt.% and the wetting agent of 0-2wt.%.
Detailed description of the invention 2 is a kind of according to covering liquid described in detailed description of the invention 1, wherein, and institute
State preservative to include: Buddhist nun's platinum esters preservative, benzoic acid and its esters preservative and sorbic acid and
Salt at least one of the preservatives.
Detailed description of the invention 3 is a kind of according to covering liquid, wherein described in detailed description of the invention 1 or 2
Described wetting agent includes: in acetylenic wetting agent, polyalcohols wetting agent and polyether polyols alcohols wetting agent
At least one.
Detailed description of the invention 4 is a kind of according to covering according to any one of detailed description of the invention 1 to 3
Liquid, the content of wherein said water soluble starch is 15-20wt.%.
Detailed description of the invention 5 is a kind of according to covering according to any one of detailed description of the invention 1 to 4
Liquid, the molecular weight of wherein said water soluble starch is 800-2000.
Detailed description of the invention 6 is a kind of method prepared and cover liquid, including step: will be according to concrete real
Execute each composition mixing covering liquid according to any one of mode 1-5.
Detailed description of the invention 7 is a kind of maskant, comprises: coated according to detailed description of the invention
Liquid is covered according to any one of 1-5.
Detailed description of the invention 8 is a kind of method preparing maskant, including step: coating is according to tool
Liquid is covered according to any one of body embodiment 1-5.
Detailed description of the invention 9 is a kind of according to the method described in detailed description of the invention 8, including step:
Spray according to covering liquid according to any one of detailed description of the invention 1-5.
Detailed description of the invention 10 is a kind of according to covering liquid according to any one of detailed description of the invention 1-5
Application in baking vanish covers.
Detailed description of the invention 11 be a kind of according to the maskant described in detailed description of the invention 7 at baking vanish
Application in covering.
Following example are used for further illustrating the disclosure, but the scope of the present disclosure is understood not to be subject to
Restriction to specific examples below.
Embodiment
For preparing the title of the main matter covering liquid and maskant, composition and the life of the disclosure
Business men is shown in Table 1.
Table 1
-cover the preparation of liquid
Under conditions of room temperature (about about 25 DEG C) and normal pressure (about 1 atmospheric pressure), liquid will be covered
Each composition add in beaker and mix, to obtain covering liquid.
The preparation of-maskant
Under conditions of room temperature (about about 25 DEG C) and normal pressure (about 1 atmospheric pressure), with spray gun (by
3M China Co., Ltd. provides) liquid will be covered spray to aluminum base material and (have purchased from the refined non-five metals in Shanghai
Limit company) on, to obtain maskant.
-cover liquid sprayability test
Carry out covering the sprayability test of liquid according to the spraying process described in GB 1727-92, mainly walk
Rapid as follows:
The spray gun using nozzle inside diameter to be 0.75-2mm is in the upper spraying of test plate (panel) (such as, aluminium sheet).Spray
Tu Shi, the distance between spray gun and test plate (panel) is not less than 200mm, and spraying direction to become suitable with test plate (panel)
Angle (such as, about 90 degree), the air pressure in spray gun is 0.2-.4MPa (air Ying Jing
The impurity such as filtration is deoiled, water and dirt).
If covering liquid can spray glibly, it is believed that qualified.If covering liquid can not spray glibly, it is believed that
Defective.
-cover liquid film property test
According to the spraying process described in GB1727-92, using nozzle inside diameter is the spray gun of 0.75-2mm
Form uniform liquid film in the upper spraying of test plate (panel) (such as, aluminium sheet), blank or overflow phenomena must not be had to go out
Existing.During spraying, the distance between spray gun and test plate (panel) is not less than 200mm, and spraying direction is wanted and test plate (panel)
Becoming suitable angle (such as, about 90 degree), the air pressure in spray gun is that 0.2-.4MPa is (empty
Gas should be through filtering off the impurity such as oil, water and dirt), then carry out covering the film property test of liquid, main
Want step as follows:
The test plate (panel) that above-mentioned spraying is good is lain in the condition of constant temperature and pressure (about 25 DEG C, 1 atmospheric pressure)
Under be dried 24 hours.
If after 24 hours are dried, cover liquid and can form uniform liquid film on test plate (panel) surface,
Think qualified.If after 24 hours are dried, covering liquid can not be formed on test plate (panel) surface uniformly
Liquid film, it is believed that defective.
-cover liquid storage stability test
1. take 300 milliliters of vials, cover liquid sample by 240 milliliters and pour in vial；
2., after vial being sealed, put in circulation ageing oven；
3. the program of circulation ageing oven it is set and runs: starting to rise from " 5 DEG C, about 1 atmospheric pressure "
Temperature is to 50 DEG C, and temperature-rise period is 2 hours；Keep 50 DEG C 10 hours；5 DEG C are cooled to from 50 DEG C,
Temperature-fall period is 2 hours；Keep 5 DEG C 10 hours；By the circulation operation of this program, circulation time is 3
Individual month.
4., after completing to circulate burn-in test, take out and cover liquid sample.If covering liquid sample not occur substantially
Change, it is believed that qualified.If covering liquid sample changes such as being layered or go mouldy occurs, it is believed that defective.
The scavenging test of-maskant
1. take the model that the test plate (panel) of above-mentioned masked liquid film property test passes is tested as scavenging；
2. use the priming paint of black, be the spray gun of 1mm with bore, the splashing that model is painted
Construction, concrete construction method is: spray gun distance model 50cm, and spraying direction to become suitable with model
Angle (such as, about 90 degree), the air pressure in spray gun is that (air should pass through 0.4MPa
Filter off the impurity such as oil, water and dirt), spray gun sprays twice above model back and forth.
3. the model obtained in step 2 is put in combined padding and drying system, toast 2 hours under conditions of 70 DEG C；
Rag is submerged in water 4., allow and take out after rag complete wetting, wring out to not dripping；
5. using this rag, the surface of the model obtained in step 3 with " about 5N, 20cm/s " is entered
Row wiping.If after 1-2 wiping, maskant is cleaned, and is designated as " easy-clear "；If warp
After 3-4 wiping, maskant is cleaned, and is designated as " can remove "；If through more than 5 times wipings
After, maskant is cleaned, and is designated as " difficult removing ".
Embodiment 1
Weigh the deionized water of 82g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Embodiment 2
Weigh the deionized water of 94g；
Under the mixing speed of 150 revs/min, it is slowly added to 5g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Embodiment 3
Weigh the deionized water of 49g；
Under the mixing speed of 150 revs/min, it is slowly added to 50g SD-1000, continues stirring, obtain
Uniform micro-whiting clear solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain micro-whiting
Clear solution.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Embodiment 4
Weigh the deionized water of 69g；
Under the mixing speed of 150 revs/min, it is slowly added to 30g SD-500, continues stirring, obtain
Homogeneous transparent solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain milky
Solution.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Embodiment 5
Weigh the deionized water of 59g；
Under the mixing speed of 150 revs/min, it is slowly added to 40g SD-5000, continues stirring, obtain
Uniform micro-whiting clear solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain micro-whiting
Clear solution.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Embodiment 6
Weigh the deionized water of 82.4g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 0.1g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Embodiment 7
Weigh the deionized water of 81.5g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 1g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 2 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 2.
Comparative example C1
Weigh the deionized water of 82g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-300, continues stirring, obtain
Homogeneous transparent solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 3 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 3.
Comparative example C2
Weigh the deionized water of 82g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-5500, continues stirring, obtain
Muddy aaerosol solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain muddy outstanding
Floating solution, it is impossible to become product.
Comparative example C3
Weigh the deionized water of 96g；
Under the mixing speed of 150 revs/min, it is slowly added to 3g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 3 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 3.
Comparative example C4
Weigh the deionized water of 44g；
Under the mixing speed of 150 revs/min, it is slowly added to 55g SD-1000, continues stirring, obtain
Highly viscous solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain highly viscous
Solution.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 3 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 3.
Comparative example C5
Weigh the deionized water of 82.45g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 0.05g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent
Solution.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 3 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 3.
Comparative example C6
Weigh the deionized water of 79.5g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g SD-1000, continues stirring, obtain
Homogeneous transparent solution；
Add 3g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain transparent molten
Liquid.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 3 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 3.
Comparative example C7
Weigh the deionized water of 82g；
Under the mixing speed of 150 revs/min, it is slowly added to 17g polyvinyl alcohol 1788, continues stirring,
Obtain homogeneous transparent solution；
Add 0.5g preservative D401 and 0.5g wetting agent 2105-3, continue stirring, obtain having one
Determine the milky white solution of viscosity.
The sprayability of liquid, film property and storage stability is covered according to method as discussed above test,
Test result is listed in table 3 respectively.
Test the scavenging of described maskant according to method as discussed above, test result is listed in table 3.
Table 2
Table 3
The liquid that covers that embodiment 1-7 provides has good sprayability, film property and storage stability,
The maskant prepared by liquid that covers provided by embodiment 1-7 has good scavenging.
What comparative example 1 provided covers liquid, and the molecular weight of water soluble starch is less than 500, so covering liquid
Film property not enough, it is difficult to film forming.
What comparative example 2 provided covers liquid, and the molecular weight of water soluble starch is more than 5000, so starch is not
It is dissolved in deionized water, it is impossible to make qualified products.
What comparative example 3 provided covers liquid, and the consumption of water soluble starch is less than 5%, so covering liquid
Film property is not enough, and film forming is uneven.
What comparative example 4 provided covers liquid, and the consumption of water soluble starch is higher than 50%, so covering liquid
Viscosity is the highest, it is impossible to carry out spraying application.
What comparative example 5 provided covers liquid, and preservative consumption is less than 0.1%, so the storage covering liquid is steady
Qualitative bad, create and go mouldy.
What comparative example 6 provided covers liquid, and preservative consumption is higher than 1%, covers liquid so have impact on
Film property, film forming is uneven.
The liquid that covers that comparative example 7 provides includes that polyvinyl alcohol 1788 does not includes water soluble starch, institute
To cover maskant difficulty removing prepared by liquid with this.
In sum, to have good sprayability, film property and storage steady for the liquid that covers that the disclosure provides
Qualitative, the maskant that the disclosure provides has good scavenging.
It will be appreciated by those skilled in the art that in the case without departing from the scope of the present invention, can carry out
Various modifications and changes.Such modifications and changes are intended to fall into as defined in the appended claims originally
Within the scope of invention.
Claims (11)
1. cover a liquid, by the described gross weight of liquid of covering based on 100wt.%, comprise:
The water soluble starch of 5-50wt.%, the molecular weight of described water soluble starch is 500-5000；
The preservative of 0.1-1wt.%；
The water of 49-94.9wt.%；With
The wetting agent of 0-2wt.%.
The most according to claim 1 covering liquid, wherein, described preservative includes: Buddhist nun's platinum ester
Class preservative, benzoic acid and its esters preservative and sorbic acid and its esters at least one of the preservatives.
The most according to claim 1 covering liquid, wherein, described wetting agent includes: acetylenic moistening
At least one in agent, polyalcohols wetting agent and polyether polyols alcohols wetting agent.
The most according to claim 1 covering liquid, wherein, the content of described water soluble starch is
15-20wt.%.
The most according to claim 1 covering liquid, wherein, the molecular weight of described water soluble starch is
800-2000。
6. prepare the method covering liquid, including step: will be according to any one of claim 1-5
The described each composition mixing covering liquid.
7. a maskant, comprises: coated according to according to any one of claim 1-5
Cover liquid.
8. the method preparing maskant, including step: be coated with and appoint according in claim 1-5
One described covers liquid.
9. a method according to claim 8, including step: spraying is according to claim
Liquid is covered according to any one of 1-5.
10. one kind according to according to any one of claim 1-5 cover liquid in baking vanish covers should
With.
The application in baking vanish covers of 11. 1 kinds of maskants according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390282.XA CN105949885A (en) | 2016-06-03 | 2016-06-03 | Covering liquid, covering coating and preparation method and application of covering liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390282.XA CN105949885A (en) | 2016-06-03 | 2016-06-03 | Covering liquid, covering coating and preparation method and application of covering liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106854400A (en) * | 2016-12-21 | 2017-06-16 | 中国科学院大学 | A kind of transparent surface antifouling paint and its application method |
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| CN106854400B (en) * | 2016-12-21 | 2019-02-19 | 中国科学院大学 | A kind of transparent surface antifouling paint and its application method |
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Application publication date: 20160921 |