CN108912925A - engine damping paint - Google Patents
engine damping paint Download PDFInfo
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- CN108912925A CN108912925A CN201810531151.8A CN201810531151A CN108912925A CN 108912925 A CN108912925 A CN 108912925A CN 201810531151 A CN201810531151 A CN 201810531151A CN 108912925 A CN108912925 A CN 108912925A
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- Prior art keywords
- parts
- glass powder
- damping paint
- agent
- engine damping
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/24—Homopolymers or copolymers of amides or imides
- C09D133/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/20—Esters of polyhydric alcohols or phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/53—Core-shell polymer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention proposes a kind of engine damping paints, in parts by weight, including following raw material：80~120 parts of aqueous acrylic emulsion, 40~60 parts of polyaminoester emulsion, 50~70 parts of modified glass powder, 2~6 parts of environment-friendly liquid fire retardant, 1~3 part of levelling agent, 2~6 parts of coalescing agent, 0.5~2 part of thickener and 30~60 parts of deionized water；The modified glass powder is that foliated glass powder is obtained by silane coupler modified.Not only damping capacity is good for the engine damping paint, and also noise isolating performance is good, meets the requirement of engine.
Description
Technical field
The invention belongs to damping paint technical fields, and in particular to a kind of engine damping paint.
Background technique
Water paint is using water as decentralized medium asepsis environment-protecting, using high performance resin as film forming matter, using inorganic matter as filler, and property
Can be excellent, it is easy for construction.It has been widely used in locomotive rocket, engineering machinery, household electrical appliance etc..With modern industry, traffic
Transport, the development of aerospace cause and the attention to environmental protection, damping material is necessarily increasingly desirable, especially high-performance environment-friendly
The damping material of type.In terms of damping capacity, conventional damper coating mainly fills film forming matter and is modified starts with Fillers selection
To improve the damping capacity of coating.Wherein, filler usually selects sheet mica, followed by superfine graphite and common graphite.This can
It can be the poly- shear deformation that sheet mica increases filler interlayer polymer.In addition, sheet mica under the action of shear force, takes
To the trend of arrangement, so that the friction between polymer chain and mica sheet is increased, to improve damping capacity.However, not being
All laminal filters can improve damping capacity, and wherein the graphite with glass powder of sheet but decline damping capacity.
Damping vibration-proof noise reduction technology is one of the method for effective control vibration and noise.These facilities are different simultaneously
What environment even operated in hot and humid environment, thus these anti-noise materials must just have outstanding corrosion-resistant effect, resistance to height
Temp effect.However, existing damping paint it is fire-retardant and in terms of effect be not very well, be not able to satisfy the need of engine
It wants.
Summary of the invention
The present invention proposes a kind of damping paint, and not only damping capacity is good for the damping paint, and also noise isolating performance is good, and satisfaction is started
The requirement of machine.
The technical proposal of the invention is realized in this way：
A kind of damping paint, in parts by weight, including following raw material：
80~120 parts of aqueous acrylic emulsion, 40~60 parts of polyaminoester emulsion, 50~70 parts of modified glass powder, Breakup of Liquid Ring
2~6 parts of environment friendly flame-retardant agent, 1~3 part of levelling agent, 2~6 parts of coalescing agent, 0.5~2 part of thickener and deionized water 30~60
Part；The modified glass powder is that foliated glass powder is obtained by silane coupler modified.
Preferably, the preparation method of the modified glass powder：
Foliated glass powder is added in acetone, ultrasonic disperse is carried out, obtains dispersion liquid, dispersion liquid is warming up to 70~80
DEG C, it then sequentially adds silane coupling agent and is stirred evenly with water, dried after reaction.
Preferably, the mass ratio of the silane coupling agent and the foliated glass powder is 1:20~25.
Preferably, the silane coupling agent is KH550 or KH560.
Preferably, the aqueous acrylic emulsion, according to the number of parts by weight, including following components：
160~180 parts of hydroxyethylacrylate methyl esters, 80~100 parts of styrene, 13~17 parts of ammonium acrylate, silica solution
65~95 parts, 40~50 parts of Isooctyl acrylate monomer, acrylic acid α -100~110 parts of ethylhexyl, 15~25 parts of acrylic acid, water 400
~460 parts, 1.5~2.5 parts of potassium peroxydisulfate, 3~4 parts and 2~6 parts of emulsifier of pH adjusting agent.
Preferably, the emulsifier is selected from methylpropenyl sodium sulfonate, neopelex and dodecyl sulphate
One or more of sodium.
Preferably, the preparation method of aqueous acrylic emulsion, includes the following steps：
1) prepared by nuclear layer monomer pre-emulsion：According to the number of parts by weight, hydroxyethylacrylate methyl esters 160~180 is weighed
Part, 80~100 parts of styrene carry out being mixed to get monomer mixture A with 13~17 parts of ammonium acrylate, weigh 80~100 parts of water with
1~3 part of emulsifier is mixed to get solution A, and monomer mixture A is slowly added dropwise into solution A, obtains nuclear layer monomer pre-emulsion；
2) prepared by shell monomers pre-emulsion：According to the number of parts by weight, 40~50 parts of Isooctyl acrylate monomer, acrylic acid are weighed
100~110 parts of α-ethylhexyl, 15~25 parts of acrylic acid carry out being mixed to get monomer mixture B, weigh 80~100 parts of water with
0.5~1 part of emulsifier is mixed to get B solution, and mixture B is slowly added dropwise into B solution, obtains shell monomers pre-emulsion；
3) prepared by potassium persulfate solution：It weighs 60~80 parts of water and is uniformly mixing to obtain over cure with 1.5~2.5 parts of potassium peroxydisulfate
Sour potassium solution；
4) preparation of seed emulsion：Weigh 65~95 parts of silica solution, 3~4 parts of pH adjusting agent, remaining water and remaining cream
Agent is mixed evenly, and is warming up to 75 DEG C~85 DEG C, keeps constant temperature, and the potassium persulfate solution of 30~40wt% is then added dropwise,
Nuclear layer monomer pre-emulsion is added dropwise again, keeps the temperature 40~60min, obtains seed emulsion；
5) remaining potassium persulfate solution is added dropwise into the seed emulsion of step 4), keeps the temperature 20~30min, then shell is added dropwise
Monomer pre-emulsion controls rate of addition, 1.5~2.5 hours, keeps the temperature 1~2 hour, cooling discharge.
Further, the coalescing agent be selected from Lauryl Alcohol ester, dipropylene glycol monomethyl ether, propylene glycol methyl ether acetate or
Ethylene glycol phenyl ether.
The preparation method of damping paint of the invention, includes the following steps：
1) modified glass powder and environment-friendly liquid fire retardant are added in deionized water and are ground to obtain slurry A；
2) aqueous acrylic emulsion, polyaminoester emulsion, levelling agent and coalescing agent are mixed evenly, obtain mixing cream
Liquid B；
3) will slurry A be added mixed emulsion B in, add thickener carry out mixing be uniformly dispersed.
Beneficial effects of the present invention：
1, engine damping paint of the invention uses aqueous acrylic emulsion and polyaminoester emulsion, especially main hydroxyl
The aqueous acrylic emulsion with core-shell structure that ethyl methyl acrylate and styrene are prepared, after not only widening compounding
Temperature range, -55 DEG C~100 DEG C, acidproof, water resistance, salt spray resistance ability are good, and noise isolating performance is good.
2, the present invention is modified processing to foliated glass powder, and modified glass powder is that foliated glass powder passes through silane coupling agent
Modification obtains.Modified glass powder can be acted on lotion very well, enhance the damping capacity of coating.
3, engine damping paint performance test results of the invention：GB/T1733-93 first method (40 DEG C of water) detection is water-fast
Property, the result is that immersion >=360h, no blistering, fall off, pink blossom, it is tacky, fade, substrate non-corroding the defects of；GB/T1763-79
(0.1N H2SO4, 25 DEG C) method for making sample detects acid resistance, the result is that >=for 24 hours without blister, fall off, it is tacky, fade the defects of；Root
Detect oil resistivity (0# diesel oil) according to GB1734, the result is that >=for 24 hours without blister, fall off, it is tacky, fade the defects of, allow slight become
Color.
Specific embodiment
Embodiment 1
A kind of damping paint, in parts by weight, including following raw material：
101 parts of aqueous acrylic emulsion, 52 parts of polyaminoester emulsion, 60 parts of modified glass powder, 5 parts of environment-friendly liquid fire retardant,
2 parts of levelling agent, 4 parts of Lauryl Alcohol ester, 1.5 parts of thickener and 45 parts of deionized water.
Aqueous acrylic emulsion, according to the number of parts by weight, including following components：
170 parts of hydroxyethylacrylate methyl esters, 90 parts of styrene, 15 parts of ammonium acrylate, 80 parts of alkaline silica sol, acrylic acid
46 parts of different monooctyl ester, acrylic acid α -105 parts of ethylhexyl, 20 parts of acrylic acid, 430 parts of water, 2 parts of potassium peroxydisulfate, 3.4 parts of pH adjusting agent
With 4 parts of methylpropenyl sodium sulfonate.
The preparation method of modified glass powder：
Foliated glass powder is added in acetone, ultrasonic disperse is carried out, obtains dispersion liquid, dispersion liquid is warming up to 75 DEG C,
Then it sequentially adds KH550 to stir evenly with water, dry after reaction.The mass ratio of KH550 and foliated glass powder
It is 1:20.
Preparation method：
1) modified glass powder and environment-friendly liquid fire retardant are added in deionized water and are ground to obtain slurry A；
2) aqueous acrylic emulsion, polyaminoester emulsion, levelling agent and Lauryl Alcohol ester are mixed evenly, are mixed
Lotion B；
3) will slurry A be added mixed emulsion B in, add thickener carry out mixing be uniformly dispersed.
Embodiment 2
A kind of damping paint, in parts by weight, including following raw material：
80 parts of aqueous acrylic emulsion, 45 parts of polyaminoester emulsion, 50 parts of modified glass powder, 2 parts of environment-friendly liquid fire retardant, stream
1 part of flat agent, 2 parts of dipropylene glycol monomethyl ether, 0.5 part of thickener and 30 parts of deionized water.
Aqueous acrylic emulsion, according to the number of parts by weight, including following components：
160 parts of hydroxyethylacrylate methyl esters, 80 parts of styrene, 17 parts of ammonium acrylate, 65 parts of alkaline silica sol, acrylic acid
50 parts of different monooctyl ester, acrylic acid α -100 parts of ethylhexyl, 15 parts of acrylic acid, 400 parts of water, 1.5 parts of potassium peroxydisulfate, 3 parts of pH adjusting agent
With 2 parts of neopelex.
The preparation method of modified glass powder：
Foliated glass powder is added in acetone, ultrasonic disperse is carried out, obtains dispersion liquid, dispersion liquid is warming up to 70 DEG C,
Then it sequentially adds KH560 to stir evenly with water, dry after reaction.The mass ratio of KH560 and foliated glass powder
It is 1:23.
Embodiment 3
A kind of damping paint, in parts by weight, including following raw material：
120 parts of aqueous acrylic emulsion, 40 parts of polyaminoester emulsion, 70 parts of modified glass powder, 5 parts of environment-friendly liquid fire retardant,
3 parts of levelling agent, 5 parts of propylene glycol methyl ether acetate, 2 parts of thickener and 60 parts of deionized water.
Aqueous acrylic emulsion, according to the number of parts by weight, including following components：
160 parts of hydroxyethylacrylate methyl esters, 95 parts of styrene, 15 parts of ammonium acrylate, 80 parts of alkaline silica sol, acrylic acid
46 parts of different monooctyl ester, acrylic acid α -105 parts of ethylhexyl, 20 parts of acrylic acid, 430 parts of water, 2 parts of potassium peroxydisulfate, 3.4 parts of pH adjusting agent
With 4 parts of lauryl sodium sulfate.
The preparation method of modified glass powder：
Foliated glass powder is added in acetone, ultrasonic disperse is carried out, obtains dispersion liquid, dispersion liquid is warming up to 80 DEG C,
Then it sequentially adds KH550 to stir evenly with water, dry after reaction.The mass ratio of KH550 and foliated glass powder
It is 1:24.
Embodiment 4
A kind of damping paint, in parts by weight, including following raw material：
110 parts of aqueous acrylic emulsion, 42 parts of polyaminoester emulsion, 65 parts of modified glass powder, 6 parts of environment-friendly liquid fire retardant,
2 parts of levelling agent, 6 parts of ethylene glycol phenyl ether, 2 parts of thickener and 60 parts of deionized water.
Aqueous acrylic emulsion, according to the number of parts by weight, including following components：
180 parts of hydroxyethylacrylate methyl esters, 100 parts of styrene, 13 parts of ammonium acrylate, without 95 parts of ionic silica solution,
40 parts of Isooctyl acrylate monomer, acrylic acid α -110 parts of ethylhexyl, 25 parts of acrylic acid, 460 parts of water, 2.5 parts of ammonium persulfate, pH tune
Save 4 parts and 6 parts of lauryl sodium sulfate of agent.
The preparation method of modified glass powder：
Foliated glass powder is added in acetone, ultrasonic disperse is carried out, obtains dispersion liquid, dispersion liquid is warming up to 73 DEG C,
Then it sequentially adds KH560 to stir evenly with water, dry after reaction.The mass ratio of KH560 and foliated glass powder
It is 1:25.
Test example
Reference examples 1：A kind of damping paint, in parts by weight, including following raw material：
101 parts of aqueous acrylic emulsion, 52 parts of polyaminoester emulsion, 60 parts of sheet mica, 5 parts of environment-friendly liquid fire retardant, stream
2 parts of flat agent, 4 parts of Lauryl Alcohol ester, 1.5 parts of thickener and 45 parts of deionized water.
Reference examples 2：A kind of damping paint, in parts by weight, including following raw material：
101 parts of aqueous acrylic emulsion, 52 parts of polyaminoester emulsion, 60 parts of foliated glass powder, 5 parts of environment-friendly liquid fire retardant,
2 parts of levelling agent, 4 parts of Lauryl Alcohol ester, 1.5 parts of thickener and 45 parts of deionized water.
The damping paint of the damping paint of embodiment 1-4 and reference examples 1-2 is painted on to the 0.8mm cold-rolled steel sheet of automobile
On, after 130 DEG C, 30min heat drying, it is desirable that chap, gap, the paint film defects such as pinprick cannot be generated.
On the automobile cold-rolled steel plate having a size of 20*200*1.0mm, using no gas coating machine to by embodiment 1-4
Damping paint and the damping paint of reference examples 1-2 be made into the desciccator diaphragm of best condition, and carry out 130 DEG C, 30min heat drying
Afterwards, it is fabricated to the test film for capableing of damping test.It is damped when measuring 20 DEG C, 40 DEG C, 60 DEG C respectively, the results are shown in Table 1.It is damped
Value is bigger to illustrate that effectiveness in vibration suppression is better, and 0.05 or more can say with effectiveness in vibration suppression.
The damping of 1 damping paint different temperatures of table
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of engine damping paint, which is characterized in that in parts by weight, including following raw material：
80~120 parts of aqueous acrylic emulsion, 40~60 parts of polyaminoester emulsion, 50~70 parts of modified glass powder, environment-friendly liquid resistance
2~6 parts of agent of combustion, 1~3 part of levelling agent, 2~6 parts of coalescing agent, 0.5~2 part of thickener and 30~60 parts of deionized water；Institute
Stating modified glass powder is that foliated glass powder is obtained by silane coupler modified.
2. engine damping paint according to claim 1, which is characterized in that the preparation method of the modified glass powder：
Foliated glass powder is added in acetone, ultrasonic disperse is carried out, obtains dispersion liquid, dispersion liquid is warming up to 70~80 DEG C,
Then it sequentially adds silane coupling agent to stir evenly with water, dry after reaction.
3. engine damping paint according to claim 2, which is characterized in that the silane coupling agent and the sheet glass
The mass ratio of glass powder is 1:20~25.
4. engine damping paint according to claim 2, which is characterized in that the silane coupling agent be KH550 or
KH560。
5. engine damping paint according to claim 1, which is characterized in that the aqueous acrylic emulsion, according to weight
It measures number to calculate, including following components：
160~180 parts of hydroxyethylacrylate methyl esters, 80~100 parts of styrene, 13~17 parts of ammonium acrylate, silica solution 65~
95 parts, 40~50 parts of Isooctyl acrylate monomer, acrylic acid α -100~110 parts of ethylhexyl, 15~25 parts of acrylic acid, water 400~
460 parts, 1.5~2.5 parts of potassium peroxydisulfate, 3~4 parts and 2~6 parts of emulsifier of pH adjusting agent.
6. engine damping paint according to claim 5, which is characterized in that the emulsifier is selected from methylpropenyl sulphur
One or more of sour sodium, neopelex and lauryl sodium sulfate.
7. engine damping paint according to claim 1, which is characterized in that the coalescing agent is selected from Lauryl Alcohol
Ester, dipropylene glycol monomethyl ether, propylene glycol methyl ether acetate or ethylene glycol phenyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531151.8A CN108912925A (en) | 2018-05-29 | 2018-05-29 | engine damping paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531151.8A CN108912925A (en) | 2018-05-29 | 2018-05-29 | engine damping paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108912925A true CN108912925A (en) | 2018-11-30 |
Family
ID=64418335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810531151.8A Pending CN108912925A (en) | 2018-05-29 | 2018-05-29 | engine damping paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108912925A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864227A (en) * | 2010-05-28 | 2010-10-20 | 青岛爱尔家佳新材料有限公司 | High solid content water-based damping paint and preparation method thereof |
| CN105482513A (en) * | 2014-10-11 | 2016-04-13 | 中国科学院宁波材料技术与工程研究所 | Method for modification and dispersion of glass powder and pigment for ink and high-temperature-resistant ink |
| CN105713472A (en) * | 2016-05-03 | 2016-06-29 | 青岛爱尔家佳新材料有限公司 | Water soluble damping coating with micro-binding damping structure and preparation method thereof |
| CN106009961A (en) * | 2016-07-20 | 2016-10-12 | 安徽贝卫新材料科技有限公司 | Acid-resistant and alkali-resistant waterborne damping coating with wide temperature range and high damping capacity and method for preparing same |
| CN106433355A (en) * | 2016-10-31 | 2017-02-22 | 郑州安邦达水性材料有限公司 | High-temperature-resistant damping paint |
| CN106566328A (en) * | 2016-10-31 | 2017-04-19 | 郑州安邦达水性材料有限公司 | High damping performance damping coating material |
| CN106833224A (en) * | 2017-01-18 | 2017-06-13 | 华南理工大学 | A kind of environmentally friendly heat-insulated high-performance water-based damping coating material and preparation method thereof |
| CN107033712A (en) * | 2016-10-31 | 2017-08-11 | 郑州安邦达水性材料有限公司 | Engine damping paint |
-
2018
- 2018-05-29 CN CN201810531151.8A patent/CN108912925A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864227A (en) * | 2010-05-28 | 2010-10-20 | 青岛爱尔家佳新材料有限公司 | High solid content water-based damping paint and preparation method thereof |
| CN105482513A (en) * | 2014-10-11 | 2016-04-13 | 中国科学院宁波材料技术与工程研究所 | Method for modification and dispersion of glass powder and pigment for ink and high-temperature-resistant ink |
| CN105713472A (en) * | 2016-05-03 | 2016-06-29 | 青岛爱尔家佳新材料有限公司 | Water soluble damping coating with micro-binding damping structure and preparation method thereof |
| CN106009961A (en) * | 2016-07-20 | 2016-10-12 | 安徽贝卫新材料科技有限公司 | Acid-resistant and alkali-resistant waterborne damping coating with wide temperature range and high damping capacity and method for preparing same |
| CN106433355A (en) * | 2016-10-31 | 2017-02-22 | 郑州安邦达水性材料有限公司 | High-temperature-resistant damping paint |
| CN106566328A (en) * | 2016-10-31 | 2017-04-19 | 郑州安邦达水性材料有限公司 | High damping performance damping coating material |
| CN107033712A (en) * | 2016-10-31 | 2017-08-11 | 郑州安邦达水性材料有限公司 | Engine damping paint |
| CN106833224A (en) * | 2017-01-18 | 2017-06-13 | 华南理工大学 | A kind of environmentally friendly heat-insulated high-performance water-based damping coating material and preparation method thereof |
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Application publication date: 20181130 |