CN101921530A - Nontoxic biological antifouling coating, preparation method thereof and antifouling treatment method of substrate - Google Patents
Nontoxic biological antifouling coating, preparation method thereof and antifouling treatment method of substrate Download PDFInfo
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- CN101921530A CN101921530A CN2010102656322A CN201010265632A CN101921530A CN 101921530 A CN101921530 A CN 101921530A CN 2010102656322 A CN2010102656322 A CN 2010102656322A CN 201010265632 A CN201010265632 A CN 201010265632A CN 101921530 A CN101921530 A CN 101921530A
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- antifouling coating
- nontoxic biological
- biological antifouling
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- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 112
- 231100000252 nontoxic Toxicity 0.000 title claims abstract description 82
- 230000003000 nontoxic effect Effects 0.000 title claims abstract description 82
- 238000000576 coating method Methods 0.000 title claims abstract description 75
- 239000011248 coating agent Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 title abstract 2
- 239000000843 powder Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 45
- 239000002966 varnish Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000011230 binding agent Substances 0.000 claims abstract description 26
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract description 14
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000002285 radioactive effect Effects 0.000 claims description 14
- 230000005284 excitation Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 239000004925 Acrylic resin Substances 0.000 claims description 9
- 229920000178 Acrylic resin Polymers 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 9
- 229920000180 alkyd Polymers 0.000 claims description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 9
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000010410 dusting Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 230000019935 photoinhibition Effects 0.000 abstract 1
- 230000001988 toxicity Effects 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000003973 paint Substances 0.000 description 4
- 102000004190 Enzymes Human genes 0.000 description 2
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- PIILXFBHQILWPS-UHFFFAOYSA-N tributyltin Chemical compound CCCC[Sn](CCCC)CCCC PIILXFBHQILWPS-UHFFFAOYSA-N 0.000 description 2
- 206010008428 Chemical poisoning Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a nontoxic biological antifouling coating which comprises a resin binder, a varnish, an additive, a curing agent and a liposoluble noctilucent powder, wherein the resin binder has better light transmittance. The invention also provides a preparation method of the nontoxic biological antifouling coating and a method for treating the surface of a substrate by utilizing the nontoxic biological antifouling coating. Based on the nontoxic biological antifouling coating, environment illumination is provided day and night mainly through noctilucent materials, thereby lowering the attachment of marine organisms by utilizing the photo inhibition effect; the noctilucent powder is alkaline earth aluminosilicate excited by a rare earth element without toxicity orradiation, thereby reducing the ill effect to the environment. The invention can also realize biological antifouling in different degrees and different environments by changing the concrete proportion of the noctilucent powder and each component and is suitable for different working conditions. The manufacture cost and the maintenance cost of the nontoxic biological antifouling coating are both relatively low.
Description
Technical field
The present invention relates to the preparation method of biological anti-fouling paint, this biological anti-fouling paint, and anti-fouling treatment method, more specifically, the preparation method who relates to a kind of nontoxic biological antifouling coating that contains luminescent powder, nontoxic biological antifouling coating that this kind contains luminescent powder, and the method that adopts this nontoxic biological antifouling coating that contains luminescent powder to carry out the antifouling processing of base material.
Background technology
On various artificial surfaces, adhere to and growth, the breeding of organic life entity all bring many drawbacks, and this phenomenon is referred to as biodeterioration.Biodeterioration in the scope of ocean can cause many drawbacks, and for example naval vessels energy consumption in ocean increases, and efficient reduces, and various corrosion increases the weight of or the like.No matter from civilian, commercial or military, the marine anti-pollution problem all is important topics of oceanographic engineering.Industry is a huge resistance to marime fouling for Yu Haiyang, so the various countries scholar all is devoted to study and can realizes effectively antifouling coating.
At the requirement of present marine anti-pollution aspect, main countermeasure comprises chemical preservation method, physics anti-fouling method and biological anti-fouling method.Wherein chemical process comprises the antifouling paint that adopts contact-type, lysotype and polishing type certainly, wherein the most effectively from tributyl tin (TBT) coating of polishing type, yet since its adverse side effect aspect environment now be under an embargo.Thereby produced many other instead of chemical methods, replace as compound and contain tin coating with copper.Yet all kinds of chemical poisoning methods always are subjected to environmentalist's protest, and it is extremely important therefore studying nontoxic and effective wide spectrum antifouling.Scholars mainly are divided into the three major types direction and study for this reason, and a class is from material, and hope can obtain to adhere to the very low material of viscosity, thereby dirt settling can be rinsed out under flow action; One class is from physical angle, undertaken antifoulingly by macroscopical modes such as electrolysis or radiation, or the physical property by changing material surface such as roughness, surface topography, hydrophobicity, zeta current potential etc. carry out antifouling; Another kind of is from biological angle, and the metabolite or the enzyme that refine various bio secretions suppress the biological attachment thing.At present, physical method still rests on the exploratory stage, and is difficult to the operation of reality is provided theoretic Assistance And Instruction.And, more antifouling potentiality are all arranged as proteolytic enzyme and glycosyl enzyme for biological method, and but these antifouling coatings still need have more experimental evidence aspect application point, therefore, nontoxic and effective antifouling means of wide spectrum wait research and development on the desirable meaning.
Summary of the invention
Not environmental protection of marine antifouling coating, efficient are not high in order to solve in the prior art, making and maintenance cost high-technology problem or one of at least, the invention provides a kind of nontoxic biological antifouling coating, comprise resin binder, varnish, auxiliary agent and solidifying agent, it is characterized in that described nontoxic biological antifouling coating also comprises fat-soluble luminescent powder, and described resin binder has light transmission preferably.
Preferably, the content of each weight percentages of components is resin binder 15～40%, varnish 1～10%, auxiliary agent 14～36%, solidifying agent 1～4%, fat-soluble luminescent powder 10～55%.
The potential of hydrogen of described resin binder is neutrality or weakly alkaline.
Described resin binder is any in Resins, epoxy, urethane resin, amino varnish, alkyd resin, acrylic resin, the fluorocarbon resin.
Described luminescent powder comprises the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements at least.
The present invention also provides the preparation method of above-mentioned a kind of nontoxic biological antifouling coating, it is characterized in that, may further comprise the steps:
Step (1): according to weight percent, get 15～40% resin binder, 1～10% varnish, 14～36% auxiliary agent, 10～55% fat-soluble luminescent powder with light transmission;
Step (2): together make fused liquid with above-mentioned each component is fused;
Step (3): the described fused liquid that step (2) is obtained carries out evenly stirring fully, and the adding weight percent is 1～4% solidifying agent, makes described nontoxic biological antifouling coating.
Preferably, the potential of hydrogen of described resin binder is neutrality or weakly alkaline.
Described resin binder comprises any in Resins, epoxy, urethane resin, amino varnish, alkyd resin, acrylic resin, the fluorocarbon resin at least.
Described luminescent powder comprises the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements at least.
The present invention also provides a kind of anti-fouling treatment method of base material, it is characterized in that, may further comprise the steps:
Get according to above-mentioned steps (1) to the described nontoxic biological antifouling coating that step (3) makes, evenly be applied to the surface for the treatment of antifouling described base material;
At room temperature, the surface of described base material is placed under the dry non-dusting condition be cured more than 24 hours;
Make the coating of described nontoxic biological antifouling coating on the surface of described base material, finish antifouling processing described base material.
The antifouling principle of the present invention mainly is: provide round the clock endlessly ambient lighting by noctilucent material, thereby utilize the light retarding effect to reduce halobiontic adhering to.The present invention is owing to take above technical scheme, it has the following advantages: 1, the luminescent powder of the present invention's employing is the alkaline-earth aluminosilicate by excitation of rare-earth elements, non-toxic and non-radioactive, therefore antifouling paint and the antifouling coating of making thereof also has the characteristic of non-toxic and non-radioactive, reduced the undesirable action to environment; 2, the present invention can be by changing the concrete proportioning of luminescent powder and resin base material etc., realization in various degree, biological antifouling under the varying environment, so can be suitable for different classes of ocean working condition; 3, cost of manufacture of the present invention is all relative with maintenance cost cheap.
Description of drawings
Fig. 1 is a nontoxic biological antifouling coating preparation method's of the present invention schema;
Fig. 2 is the schema of the anti-fouling treatment method of base material of the present invention.
Embodiment
Below in conjunction with accompanying drawing, illustrate according to the specific embodiment of the present invention.
According to a kind of nontoxic biological antifouling coating of the present invention, comprise resin binder, varnish, auxiliary agent and solidifying agent, described nontoxic biological antifouling coating also comprises fat-soluble luminescent powder, and described resin binder has light transmission.
Preferably, described nontoxic biological antifouling coating, the content of each weight percentages of components is resin binder 15～40%, varnish 1～10%, auxiliary agent 14～36%, solidifying agent 1～4%, fat-soluble luminescent powder 10～55%.
The potential of hydrogen of described resin binder is neutrality or weakly alkaline.
Described resin binder is any in Resins, epoxy, urethane resin, amino varnish, alkyd resin, acrylic resin, the fluorocarbon resin.
Described luminescent powder comprises the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements at least.
Embodiment 1: according to a kind of nontoxic biological antifouling coating of the present invention, comprise Resins, epoxy, varnish, auxiliary agent, fat-soluble luminescent powder, solidifying agent with light transmission, each compositions in weight percentage is respectively: Resins, epoxy 40%, varnish 10%, auxiliary agent 36%, luminescent powder 10%, solidifying agent 4%, described luminescent powder contains the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements.The nontoxic biological antifouling coating of present embodiment after adopting treatment process of the present invention to place the surface of base material, has the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 2: another kind of nontoxic biological antifouling coating of the present invention, comprise urethane resin, varnish, auxiliary agent, fat-soluble luminescent powder, solidifying agent with light transmission, each compositions in weight percentage is respectively: urethane resin 38%, varnish 8%, auxiliary agent 30%, luminescent powder 20%, solidifying agent 4%, described luminescent powder contains the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements.The nontoxic biological antifouling coating of present embodiment, adopt treatment process of the present invention to place the surface of base material again after, also have the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 3: another nontoxic biological antifouling coating of the present invention, comprise amino varnish, varnish, auxiliary agent, fat-soluble luminescent powder, solidifying agent with light transmission, each compositions in weight percentage is respectively: amino varnish 35%, varnish 6%, auxiliary agent 25%, luminescent powder 30%, solidifying agent 4%, described luminescent powder contains the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements.The nontoxic biological antifouling coating of present embodiment, adopt treatment process of the present invention to place the surface of base material again after, have the good antifouling effect equally, also can realize goal of the invention of the present invention.
Embodiment 4: another nontoxic biological antifouling coating of the present invention, comprise alkyd resin, varnish, auxiliary agent, fat-soluble luminescent powder, solidifying agent with light transmission, each compositions in weight percentage is respectively: alkyd resin 30%, varnish 5%, auxiliary agent 21%, luminescent powder 40%, solidifying agent 4%, described luminescent powder contains the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements.The nontoxic biological antifouling coating of present embodiment, adopt treatment process of the present invention to place the surface of base material after, have the good antifouling effect equally, also can realize goal of the invention of the present invention.
Embodiment 5: another nontoxic biological antifouling coating of the present invention, comprise acrylic resin, varnish, auxiliary agent, fat-soluble luminescent powder, solidifying agent with light transmission, each compositions in weight percentage is respectively: acrylic resin 25%, varnish 5%, auxiliary agent 17%, luminescent powder 50%, solidifying agent 3%, described luminescent powder contains the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements.The nontoxic biological antifouling coating of present embodiment, adopt treatment process of the present invention to place the surface of base material after, have the good antifouling effect equally, also can realize goal of the invention of the present invention.
Embodiment 6: another nontoxic biological antifouling coating of the present invention, comprise fluorocarbon resin, varnish, auxiliary agent, fat-soluble luminescent powder, solidifying agent with light transmission, each compositions in weight percentage is respectively: fluorocarbon resin 23%, varnish 4%, auxiliary agent 15%, luminescent powder 55%, solidifying agent 3%, described luminescent powder contains the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements.The nontoxic biological antifouling coating of present embodiment, adopt treatment process of the present invention to place the surface of base material after, have the good antifouling effect equally, also can realize goal of the invention of the present invention.
The present invention also provides the preparation method of described a kind of nontoxic biological antifouling coating, may further comprise the steps:
Step (1): according to weight percent, get 15～40% resin binder, 1～10% varnish, 14～36% auxiliary agent, 10～55% fat-soluble luminescent powder with light transmission;
Step (2): together make fused liquid with above-mentioned each component is fused;
Step (3): the described fused liquid that step (2) is obtained carries out evenly stirring fully, and the adding weight percent is 1～4% solidifying agent, makes described nontoxic biological antifouling coating.
Idiographic flow and step are as shown in Figure 1.
Preferably, the potential of hydrogen of described resin binder is neutrality or weakly alkaline.
Described resin binder comprises any in Resins, epoxy, urethane resin, amino varnish, alkyd resin, acrylic resin, the fluorocarbon resin at least.
Described luminescent powder comprises the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements at least.
Embodiment 7:
Get Resins, epoxy 40% by weight percentage, varnish 10%, auxiliary agent 36%, fat-soluble luminescent powder 10% with light transmission; Make fused liquid with above-mentioned each component is fused together; Fully stir described fused liquid and make it even back, make described nontoxic biological antifouling coating at the solidifying agent that adds 4%.Described nontoxic biological antifouling coating has the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 8:
Get urethane resin 38% by weight percentage, varnish 8%, auxiliary agent 30%, fat-soluble luminescent powder 20% with light transmission; Make fused liquid with above-mentioned each component is fused together; Stir the back and add solidifying agent 4%, make described nontoxic biological antifouling coating.Described nontoxic biological antifouling coating has the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 9:
Get amino varnish 35% by weight percentage, varnish 6%, auxiliary agent 25%, fat-soluble luminescent powder 30% with light transmission; Make fused liquid with above-mentioned each component is fused together; Stir the back and add solidifying agent 4%, make described nontoxic biological antifouling coating.Described nontoxic biological antifouling coating has the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 10:
Get alkyd resin 30% by weight percentage, varnish 5%, auxiliary agent 21%, fat-soluble luminescent powder 40% with light transmission; Make fused liquid with above-mentioned each component is fused together; Stir the back and add solidifying agent 4%, make described nontoxic biological antifouling coating.Described nontoxic biological antifouling coating has the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 11:
Get acrylic resin 25% by weight percentage, varnish 5%, auxiliary agent 17%, fat-soluble luminescent powder 50% with light transmission; Make fused liquid with above-mentioned each component is fused together; Stir the back and add solidifying agent 3%, make described nontoxic biological antifouling coating.Described nontoxic biological antifouling coating has the good antifouling effect, can realize goal of the invention of the present invention.
Embodiment 12:
Get fluorocarbon resin 23% by weight percentage, varnish 4%, auxiliary agent 15%, fat-soluble luminescent powder 55% with light transmission; Make fused liquid with above-mentioned each component is fused together; Stir the back and add solidifying agent 3%, make described nontoxic biological antifouling coating.Described nontoxic biological antifouling coating has the good antifouling effect, can realize goal of the invention of the present invention.
The present invention also provides a kind of anti-fouling treatment method of base material, it is characterized in that, may further comprise the steps:
Get the described nontoxic biological antifouling coating of embodiment 1-6 that the described method of the foregoing description 7-12 makes, evenly be applied to the surface for the treatment of antifouling described base material, for example the shell of ocean naval vessels;
At room temperature, the surface of described base material is placed under the dry non-dusting condition be cured more than 24 hours;
Make the coating of described nontoxic biological antifouling coating on the surface of described base material, finish antifouling processing described base material.
Behind the ocean, can reduce greatly halobiontic adhering under the ocean naval vessels after handling like this, have the good antifouling effect.Experiment shows, the described nontoxic biological antifouling coating of embodiment 1-6 that adopts the above embodiment of the present invention 7-12 to make, and then adopt the anti-fouling treatment method of the above-mentioned base material of the present invention, after the ocean that comprises naval vessels carried out antifouling processing with object, effect is fairly obvious: smearing under the situation that nontoxic biological antifouling coating that the above embodiment of the present invention 1 provides and coat-thickness be about 1mm, do not compare with smearing nontoxic biological antifouling coating of the present invention, the diatom adhesive rate of naval vessels is reduced to 27%; Having smeared under the situation that nontoxic biological antifouling coating that the above embodiment of the present invention 2 provides and coat-thickness be about 1mm, not compare with smearing nontoxic biological antifouling coating of the present invention, the adhesive rate of the diatom of naval vessels is reduced to 40%.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a nontoxic biological antifouling coating comprises resin binder, varnish, and auxiliary agent and solidifying agent is characterized in that, described nontoxic biological antifouling coating also comprises fat-soluble luminescent powder, and described resin binder has light transmission.
2. nontoxic biological antifouling coating according to claim 1 is characterized in that, the content of each weight percentages of components is resin binder 15～40%, varnish 1～10%, auxiliary agent 14～36%, solidifying agent 1～4%, fat-soluble luminescent powder 10～55%.
3. nontoxic biological antifouling coating according to claim 2 is characterized in that, the potential of hydrogen of described resin binder is neutrality or weakly alkaline.
4. nontoxic biological antifouling coating according to claim 3 is characterized in that, described resin binder is any in Resins, epoxy, urethane resin, amino varnish, alkyd resin, acrylic resin, the fluorocarbon resin.
5. according to the arbitrary described nontoxic biological antifouling coating of claim 1-4, it is characterized in that described luminescent powder comprises the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements at least.
6. the preparation method of a nontoxic biological antifouling coating is characterized in that, may further comprise the steps:
Step (1): according to weight percent, get 15～40% resin binder, 1～10% varnish, 14～36% auxiliary agent, 10～55% fat-soluble luminescent powder with light transmission;
Step (2): together make fused liquid with above-mentioned each component is fused;
Step (3): the described fused liquid that step (2) is obtained carries out evenly stirring fully, and the adding weight percent is 1～4% solidifying agent, makes described nontoxic biological antifouling coating.
7. the preparation method of nontoxic biological antifouling coating according to claim 6 is characterized in that, the potential of hydrogen of described resin binder is neutrality or weakly alkaline.
8. the preparation method of nontoxic biological antifouling coating according to claim 7 is characterized in that, described resin binder comprises any in Resins, epoxy, urethane resin, amino varnish, alkyd resin, acrylic resin, the fluorocarbon resin at least.
9. the preparation method of nontoxic biological antifouling coating according to claim 8 is characterized in that, described luminescent powder comprises the alkaline-earth aluminosilicate by the non-toxic and non-radioactive of excitation of rare-earth elements at least.
10. the anti-fouling treatment method of a base material is characterized in that, may further comprise the steps:
Get the described nontoxic biological antifouling coating of the claim 1 that makes according to claim 6, evenly be applied to the surface for the treatment of antifouling described base material;
At room temperature, the surface of described base material is placed under the dry non-dusting condition be cured more than 24 hours;
Make the coating of described nontoxic biological antifouling coating on the surface of described base material, finish antifouling processing described base material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642356A (en) * | 2012-02-24 | 2012-08-22 | 清华大学 | Non-toxic biological anti-fouling resistance reducing composite coating, preparation method for composite coating and anti-fouling resistance reducing treatment method for base material |
| CN104109441A (en) * | 2014-07-15 | 2014-10-22 | 张敏 | Delayed reflecting material for power supply-dead illuminating tunnel and spraying method thereof |
| CN104119793A (en) * | 2013-04-25 | 2014-10-29 | 上海百川通海洋工程有限公司 | Preparation method for elastic polyurethane antifouling paint |
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| CN104119793A (en) * | 2013-04-25 | 2014-10-29 | 上海百川通海洋工程有限公司 | Preparation method for elastic polyurethane antifouling paint |
| CN104109441A (en) * | 2014-07-15 | 2014-10-22 | 张敏 | Delayed reflecting material for power supply-dead illuminating tunnel and spraying method thereof |
| CN104109441B (en) * | 2014-07-15 | 2017-02-15 | 张敏 | Delayed reflecting material for power supply-dead illuminating tunnel and spraying method thereof |
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