CN109880474A - A kind of solid buoyancy material matrix surface antistatic coating - Google Patents
A kind of solid buoyancy material matrix surface antistatic coating Download PDFInfo
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- CN109880474A CN109880474A CN201910172669.1A CN201910172669A CN109880474A CN 109880474 A CN109880474 A CN 109880474A CN 201910172669 A CN201910172669 A CN 201910172669A CN 109880474 A CN109880474 A CN 109880474A
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Abstract
The present invention relates to antistatic coating technical fields, and a kind of solid buoyancy material matrix surface antistatic coating is disclosed, the raw material including following parts by weight proportion: 5-8 parts of neopelexes, 3.9 parts of dehydrated alcohols, 1-4 parts of potassium peroxydisulfates, 4.8-14.5 parts of pyrrole monomers, 4-8 parts of methacrylonitriles, 4.1-6.1 parts of methacrylic acids, 0.1-0.3 parts of azodiisobutyronitriles, the 3-6 parts of tert-butyl alcohols, 1mL allyl methacrylate, 2-3 parts of polyvinyl alcohol.The present invention solves solid buoyancy material matrix surface antistatic coating in the prior art, while effectively realizing antistatic property, cannot achieve the technical issues of its own weight is effectively reduced.
Description
Technical field
The present invention relates to antistatic coating technical field, the antistatic paintings of specially a kind of solid buoyancy material matrix surface
Material.
Background technique
In recent years, solid buoyancy material has been widely used in marine drilling platform, oil exploitation marine riser and underwater
The ocean development equipment such as the latent device of operation.As exploration and development of the mankind to ocean is more and more extensive, to solid buoyancy material
Demand it is also increasing.
It is prepared however, currently used solid buoyancy material is substantially using cenosphere filled thermoset resin
's.Since the cenosphere as filler and the resin as matrix are all extraordinary insulating materials, prepared consolidates
Body buoyant material also has extraordinary insulating properties, and volume resistivity is generally between 1012-1015 Ω cm.This insulation material
Material has very big accumulation of static electricity effect, makes it in carrying, installation and use process, is easy to gather because rubbing or colliding
Electrostatic charge generates very high electrostatic pressure.This equipment to ocean development especially carrys out the relevant device for oil exploitation
It says, is breakneck, it is easy to cause on fire or explosion because of static charge accumulation.
There are two ways to currently used realization material is antistatic: a kind of method is directly to add electric conductivity in the material
Filler, such as conductive black, polyaniline, silver powder, carbon pipe, although this method can prepare permanent anti-static material,
Filler dispersibility in the base and compatibility are all very poor, and filer content is typically up to 2~20%, this will seriously affect material
The density and intensity of material are unsuitable for preparing low-density, high-intensitive solid buoyancy material;Another method is to apply on the surface of the material
The coating or antistatic agent of electric conductivity are covered, although anti-static material prepared by this method does not have permanently, surface
Antistatic layer is also easy to fail because rubbing or colliding during use, but will not be to the close of solid buoyancy material
Degree and intensity impact.
Authorization Notice No. be CN104387957B patent of invention disclose a kind of antistatic coating, the antistatic coating by
Following raw materials are constituted, and the number is mass parts: 30~40 parts of polypyrrole conducting polymer, 5~10 parts of levelling agent, titanium dioxide
12~16 parts, 8~10 parts of talcum powder, 2~7 parts of Carbon fibe powder;The patent of invention that Authorization Notice No. is CN101921528B is public
A kind of calcium carbonate/nickel composite conductive material matrix antistatic coating, raw material components mass percent are as follows: calcium carbonate/nickel is multiple are opened
Close conductive material: 10~70wt%;Dispersing agent: 0.1~3.0wt%;Wetting dispersing agent: 0.1~3.0wt%;Defoaming agent: 0.1
~2.0wt%;Levelling agent: 0.1~2.0wt%;Resin: 10.0~50.0wt%;Mixed diluent: surplus;The above components
Total amount is 100%.
Although foregoing invention patent can effectively realize while not destroying other performances of basis material inherently
Antistatic technical effect, but the biggish component of density is added in foregoing invention patent, the biggish component of density makes to resist quiet
The weight of electrocoating paint significantly increases, if above-mentioned antistatic coating is coated in the ocean development equipment using buoyant material production
Surface, then the buoyancy of the equipment will be obviously reduced.
The present invention provides a kind of solid buoyancy material matrix surface antistatic coating, it is intended to solve solid in the prior art
Buoyant material matrix surface antistatic coating cannot achieve and it is effectively reduced certainly while effectively realizing antistatic property
The technical issues of body weight.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of solid buoyancy material matrix surface antistatic coating,
Solve solid buoyancy material matrix surface antistatic coating in the prior art, while effectively realizing antistatic property,
It cannot achieve the technical issues of its own weight is effectively reduced.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme:
A kind of solid buoyancy material matrix surface antistatic coating, the raw material including following parts by weight proportion: 5-8 parts
Neopelex, 3.9 parts of dehydrated alcohols, 1-4 parts of potassium peroxydisulfates, 4.8-14.5 parts of pyrrole monomers, 4-8 parts of metering systems
Nitrile, 4.1-6.1 part methacrylic acid, 0.1-0.3 parts of azodiisobutyronitriles, the 3-6 parts of tert-butyl alcohols, 1mL allyl methacrylate,
2-3 parts of polyvinyl alcohol.
Preferably, the raw material including following parts by weight proportion: 5g neopelex, 5mL dehydrated alcohol, 1.5g
Potassium peroxydisulfate, 8mL pyrrole monomer, 5mL methacrylonitrile, 4mL methacrylic acid, 0.3g azodiisobutyronitrile, the 6g tert-butyl alcohol,
0.2mL allyl methacrylate, 3g polyvinyl alcohol, 25mL distilled water.
Preferably, the viscosity of the polyvinyl alcohol is 50.
Preferably, the antistatic coating preparation method the following steps are included:
S1. by 5-8 parts of neopelexes, 3.9 parts of dehydrated alcohols and distilled water, 1.5g potassium peroxydisulfate, 1-4 parts of mistakes
Antistatic ingredient is prepared in potassium sulfate, 4.8-14.5 part pyrrole monomer, the polymerization reaction at 90-110 DEG C;
S2. 4-8 parts of methacrylonitriles, 4.1-6.1 parts of methacrylic acids, 0.1-0.3 parts of azodiisobutyronitriles, 3-6 parts are taken
The tert-butyl alcohol, 1mL allyl methacrylate, preparation obtain filling components;
S3., filling components in antistatic ingredient and step S2 in step S1 are injected to the mold of sealing after mixing
In, it is placed in 60-90 DEG C of water-bath, constant temperature polymerization reaction 12-18h is demoulded, the foamable reaction at 170-200 DEG C, later later
Cooling, is prepared antistatic agent;
S4. using polyvinyl alcohol and distilled water as raw material, adhesion component is prepared;
S5. the antistatic agent in step S3 is added in the adhesion component in step S4, stirs evenly, is placed in vacuum drying
20min is steeped in middle vacuum evacuation in case, and antistatic coating is prepared.
Preferably, in the step S3, polymer foamable reaction 1h at 170-200 DEG C.
Preferably, cool down after foamable reaction, be cooled to 120-150 DEG C, react 2h at 120-150 DEG C.
(3) beneficial technical effect
Compared with prior art, the present invention has following beneficial technical effect:
Antistatic coating of the invention is coated in solid buoyancy material surface, is prepared into antistatic coating, after maintenance 7 days,
The volume resistivity for testing the antistatic coating is 1.1 × 106-1.8×106Ω m, density 0.2-0.27g/cm3;
With the volume resistivity 4.6 × 10 for the antistatic coating prepared in comparative example of the present invention4Ω m, density
0.49g/cm3It compares, the present invention improves the volume resistivity of antistatic coating not only significantly, but also significant reduces it
Own wt, to achieve the technical effect that its own weight is effectively reduced while effectively realizing antistatic property.
Specific embodiment
Embodiment one:
Antistatic coating includes following raw material: 5g neopelex, 5mL dehydrated alcohol (ρ 0.789g/cm3)、
1.5g potassium peroxydisulfate, 8mL pyrrole monomer (ρ 0.967g/cm3), 5mL methacrylonitrile (ρ 0.8g/cm3), 4mL metering system
Acid (ρ 1.015g/cm3), 0.3g azodiisobutyronitrile, the 6g tert-butyl alcohol, 1mL allyl methacrylate (ρ 0.94g/cm3)、
3g polyvinyl alcohol (viscosity 50), 25mL distilled water;
The preparation method of above-mentioned antistatic coating the following steps are included:
S1. polymeric kettle is added in 5g neopelex, 5mL dehydrated alcohol, 15mL distilled water, after mixing evenly,
1.5g potassium peroxydisulfate is added, then passes to 8mL pyrrole monomer, 3h is reacted at 90 DEG C, discharges, is prepared antistatic after cooling
Component;
S2. 5mL methacrylonitrile, 4mL methacrylic acid, 0.3g azodiisobutyronitrile, the 6g tert-butyl alcohol, 1mL methyl-prop are taken
Olefin(e) acid allyl ester, preparation obtain filling components;
S3., filling components in antistatic ingredient and step S2 in step S1 are injected to the mold of sealing after mixing
In, it is placed in 60 DEG C of water-bath, constant temperature polymerization reaction 18h is demoulded later, and copolymer is placed in the baking that preheating temperature is 110 DEG C
In case, with the heating rate of 5 DEG C/min, 190 DEG C are warming up to, the foamable reaction 1h at 190 DEG C is cooled to 150 DEG C later, in
2h is reacted at 150 DEG C, is cooled to room temperature, antistatic agent is prepared;
S4. 3g polyvinyl alcohol is dissolved in 10mL distilled water, adhesion component is prepared;
S5. the antistatic agent in step S3 is added in the adhesion component in step S4, stirs evenly, is placed in vacuum drying
20min is steeped in middle vacuum evacuation in case, and antistatic coating is prepared;
S6. the antistatic coating in step S5 is coated in solid buoyancy material surface, is prepared into coating, conserved 7 days, surveyed
The volume resistivity for trying above-mentioned coating is 1.8 × 106Ω m, the density for testing above-mentioned coating is 0.27g/cm3。
Embodiment two:
Antistatic coating includes following raw material: 5g neopelex, 5mL dehydrated alcohol, 4g potassium peroxydisulfate, 15mL
Pyrrole monomer, 10mL methacrylonitrile, 6mL methacrylic acid, 0.3g azodiisobutyronitrile, the 3g tert-butyl alcohol, 1mL methacrylic acid
Allyl ester, 3g polyvinyl alcohol, 25mL distilled water;
The preparation method of above-mentioned antistatic coating the following steps are included:
S1. polymeric kettle is added in 5g neopelex, 5mL dehydrated alcohol, 15mL distilled water, after mixing evenly,
4g potassium peroxydisulfate is added, then passes to 15mL pyrrole monomer, 3h is reacted at 110 DEG C, discharges, is prepared antistatic after cooling
Component;
S2. 10mL methacrylonitrile, 6mL methacrylic acid, 0.3g azodiisobutyronitrile, the 3g tert-butyl alcohol, 1mL methyl-prop are taken
Olefin(e) acid allyl ester, preparation obtain filling components;
S3., filling components in antistatic ingredient and step S2 in step S1 are injected to the mold of sealing after mixing
In, it is placed in 80 DEG C of water-bath, constant temperature polymerization reaction 12h is demoulded later, and copolymer is placed in the baking that preheating temperature is 100 DEG C
In case, with the heating rate of 5 DEG C/min, 170 DEG C are warming up to, the foamable reaction 1h at 170 DEG C is cooled to 120 DEG C later, in
2h is reacted at 120 DEG C, is cooled to room temperature, antistatic agent is prepared;
S4. 3g polyvinyl alcohol is dissolved in 10mL distilled water, adhesion component is prepared;
S5. the antistatic agent in step S3 is added in the adhesion component in step S4, stirs evenly, is placed in vacuum drying
20min is steeped in middle vacuum evacuation in case, and antistatic coating is prepared;
S6. the antistatic coating in step S5 is coated in solid buoyancy material surface, is prepared into coating, conserved 7 days, surveyed
The volume resistivity for trying above-mentioned coating is 1.1 × 106Ω m, the density for testing above-mentioned coating is 0.2g/cm3。
Embodiment three:
Antistatic coating includes following raw material: 8g neopelex, 5mL dehydrated alcohol, 1g potassium peroxydisulfate, 5mL
Pyrrole monomer, 8mL methacrylonitrile, 5mL methacrylic acid, 0.1g azodiisobutyronitrile, the 4g tert-butyl alcohol, 1mL methacrylic acid
Allyl ester, 2g polyvinyl alcohol, 25mL distilled water;
The preparation method of above-mentioned antistatic coating the following steps are included:
S1. polymeric kettle is added in 8g neopelex, 5mL dehydrated alcohol, 15mL distilled water, after mixing evenly,
1g potassium peroxydisulfate is added, then passes to 8mL pyrrole monomer, 3h is reacted at 100 DEG C, discharges, is prepared antistatic after cooling
Component;
S2. 8mL methacrylonitrile, 5mL methacrylic acid, 0.1g azodiisobutyronitrile, the 4g tert-butyl alcohol, 1mL methyl-prop are taken
Olefin(e) acid allyl ester, preparation obtain filling components;
S3., filling components in antistatic ingredient and step S2 in step S1 are injected to the mold of sealing after mixing
In, it is placed in 90 DEG C of water-bath, constant temperature polymerization reaction 15h is demoulded later, and copolymer is placed in the baking oven that preheating temperature is 80 DEG C
It is interior, with the heating rate of 5 DEG C/min, 200 DEG C are warming up to, the foamable reaction 1h at 200 DEG C is cooled to 130 DEG C, in 130 later
2h is reacted at DEG C, is cooled to room temperature, and antistatic agent is prepared;
S4. 2g polyvinyl alcohol is dissolved in 10mL distilled water, adhesion component is prepared;
S5. the antistatic agent in step S3 is added in the adhesion component in step S4, stirs evenly, is placed in vacuum drying
40min is steeped in middle vacuum evacuation in case, and antistatic coating is prepared;
S6. the antistatic coating in step S5 is coated in solid buoyancy material surface, is prepared into coating, conserved 7 days, surveyed
The volume resistivity for trying above-mentioned coating is 1.7 × 106Ω m, the density for testing above-mentioned coating is 0.24g/cm3。
Comparative example:
Antistatic coating includes following raw material: 1g neopelex, 5mL dehydrated alcohol, 1.5g potassium peroxydisulfate,
2mL pyrrole monomer, 5mL methacrylonitrile, 4mL methacrylic acid, 0.3g azodiisobutyronitrile, the 6g tert-butyl alcohol, 1mL metering system
Allyl propionate;
The preparation method of above-mentioned antistatic coating the following steps are included:
S1. polymeric kettle is added in 1g neopelex, 5mL dehydrated alcohol, after mixing evenly, 1.5g over cure is added
Sour potassium then passes to 2mL pyrrole monomer, and 3h is reacted at 90 DEG C, discharges after cooling, antistatic ingredient is prepared;
S2. 5mL methacrylonitrile, 4mL methacrylic acid, 0.3g azodiisobutyronitrile, the 6g tert-butyl alcohol, 1mL methyl-prop are taken
Olefin(e) acid allyl ester, preparation obtain filling components;
S3., filling components in antistatic ingredient and step S2 in step S1 are injected to the mold of sealing after mixing
In, it is placed in 60 DEG C of water-bath, constant temperature polymerization reaction 18h is demoulded later, and copolymer is placed in the baking that preheating temperature is 110 DEG C
In case, with the heating rate of 5 DEG C/min, 190 DEG C are warming up to, the foamable reaction 1h at 190 DEG C is cooled to 150 DEG C later, in
2h is reacted at 150 DEG C, is cooled to room temperature, antistatic agent is prepared;
S4. the antistatic agent in step S3 is placed in middle vacuum evacuation in vacuum oven and steeps 20min, be prepared resist it is quiet
Electrocoating paint;
S5. the antistatic coating in step S4 is coated in solid buoyancy material surface, is prepared into coating, conserved 7 days, surveyed
The volume resistivity for trying above-mentioned coating is 4.6 × 104Ω m, the density for testing above-mentioned coating is 0.49g/cm3。
Claims (6)
1. a kind of solid buoyancy material matrix surface antistatic coating, which is characterized in that including following parts by weight proportion
Raw material: 5-8 parts of neopelexes, 3.9 parts of dehydrated alcohols, 1-4 parts of potassium peroxydisulfates, 4.8-14.5 parts of pyrrole monomers, 4-8
Part methacrylonitrile, 4.1-6.1 parts of methacrylic acids, 0.1-0.3 parts of azodiisobutyronitriles, the 3-6 parts of tert-butyl alcohols, 1mL methyl-prop
Olefin(e) acid allyl ester, 2-3 part polyvinyl alcohol.
2. antistatic coating according to claim 1, which is characterized in that the raw material including following parts by weight proportion: 5g
Neopelex, 5mL dehydrated alcohol, 1.5g potassium peroxydisulfate, 8mL pyrrole monomer, 5mL methacrylonitrile, 4mL methyl-prop
Olefin(e) acid, 0.3g azodiisobutyronitrile, the 6g tert-butyl alcohol, 0.2mL allyl methacrylate, 3g polyvinyl alcohol, 25mL distilled water.
3. antistatic coating according to claim 1 or 2, which is characterized in that the viscosity of the polyvinyl alcohol is 50.
4. antistatic coating according to claim 1, which is characterized in that the preparation method of the antistatic coating include with
Lower step:
S1. by 5-8 parts of neopelexes, 3.9 parts of dehydrated alcohols and distilled water, 1.5g potassium peroxydisulfate, 1-4 parts of persulfuric acid
Antistatic ingredient is prepared in potassium, 4.8-14.5 part pyrrole monomer, the polymerization reaction at 90-110 DEG C;
S2. 4-8 parts of methacrylonitriles, 4.1-6.1 parts of methacrylic acids, 0.1-0.3 parts of azodiisobutyronitriles, 3-6 parts of tertiary fourths are taken
Alcohol, 1mL allyl methacrylate, preparation obtain filling components;
S3. the filling components in the antistatic ingredient and step S2 in step S1 are injected after mixing in the mold of sealing,
It is placed in 60-90 DEG C of water-bath, constant temperature polymerization reaction 12-18h is demoulded later, and the foamable reaction at 170-200 DEG C drops later
Antistatic agent is prepared in temperature;
S4. using polyvinyl alcohol and distilled water as raw material, adhesion component is prepared;
S5. the antistatic agent in step S3 is added in the adhesion component in step S4, stirs evenly, is placed in vacuum oven
20min is steeped in middle vacuum evacuation, and antistatic coating is prepared.
5. antistatic coating according to claim 4, which is characterized in that in the step S3, polymer is in 170-200 DEG C
Lower foamable reaction 1h.
6. antistatic coating according to claim 4, which is characterized in that in the step S3, cool down after foamable reaction, drop
Temperature reacts 2h at 120-150 DEG C to 120-150 DEG C.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101036198A (en) * | 2004-08-03 | 2007-09-12 | 坎梅陶尔股份有限公司 | Process for coating fine particles with conductive polymers |
CN101333430A (en) * | 2007-06-25 | 2008-12-31 | 东进世美肯株式会社 | Anti-static coating composition and method for manufacturing antistatic coating using same |
CN101709130A (en) * | 2009-11-19 | 2010-05-19 | 海洋化工研究院 | Ultra-low density solid buoyant material and manufacture method |
CN104387957A (en) * | 2014-11-13 | 2015-03-04 | 山东华亚环保科技有限公司 | Antistatic coating and preparation method thereof |
-
2019
- 2019-03-07 CN CN201910172669.1A patent/CN109880474A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101036198A (en) * | 2004-08-03 | 2007-09-12 | 坎梅陶尔股份有限公司 | Process for coating fine particles with conductive polymers |
CN101333430A (en) * | 2007-06-25 | 2008-12-31 | 东进世美肯株式会社 | Anti-static coating composition and method for manufacturing antistatic coating using same |
CN101709130A (en) * | 2009-11-19 | 2010-05-19 | 海洋化工研究院 | Ultra-low density solid buoyant material and manufacture method |
CN104387957A (en) * | 2014-11-13 | 2015-03-04 | 山东华亚环保科技有限公司 | Antistatic coating and preparation method thereof |
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