CN104129132B - Composite damping coating - Google Patents
Composite damping coating Download PDFInfo
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- CN104129132B CN104129132B CN201410321644.0A CN201410321644A CN104129132B CN 104129132 B CN104129132 B CN 104129132B CN 201410321644 A CN201410321644 A CN 201410321644A CN 104129132 B CN104129132 B CN 104129132B
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Abstract
The invention discloses a kind of composite damping coating, including damping layer and restraint layer, described damping layer is Solvent-free Modification polyurethane damping coatings, and described restraint layer is that Solvent-free Modification epoxy resin retrains coating.The composite coating of the present invention passes through restraint layer flat, damping layer sound insulation, reduces the frequency that sound source spreads out of, reaches the purpose of quiet noise reduction, has damping temp field width, high with sheet metal fissipation factor after compound, the features such as damping is good.And owing to this coating is without organic solvent, there is normal temperature cure, nontoxic, fire-retardant, easy construction, the advantage such as quickly.
Description
Technical field
The present invention relates to polymeric material field, particularly relate to the composite damping coating of a kind of damping noise reduction.
Background technology
Along with national economy develops rapidly, the noise shielding of life and working environment is cut off requirement and more comes by people
The highest.Noise as produced by transformer the most extensively affect residential quarters, commercial center, light station, airport,
The places such as factories and miness, enterprise, hospital, school, have caused the great attention of people the most.In order to reduce change
The noise of depressor, mainly reduces noise source by improving transformer device structure, and by vibration damping and sound insulation,
The measures such as sound absorption, make noise be decayed in route of transmission.Use is typically required in noise reduction process technology
There is the sheet metal of decrease of noise functions, or on the metal base of transformer, coat damping noise-reducing coating.Existing
Coating for metal base is mostly aqueous or solvent-borne type damping material, and wherein solvent-borne type damping paint contains
A large amount of organic solvents, toxicity is big, inflammable and explosive；Aqueous damping coating rate of drying is slow, be easily generated cracking,
Obscission；Sheet metal requires whole for the anti-corrosive primer of surface of steel plate polishings before coating damping paint,
Need to drive away with wood during stickup, the external force such as sand pocket, cramp frame is fixed, and sticking strength is low, use often occur void viscous,
Come unglued, come off, return the phenomenons such as rust.
Metal material surface can be higher, and surface tension is big.In general, in adhesive isocyanates or its spread out
Biological percentage composition is the highest, and the surface tension of adhesive layer is the biggest, and glue-line is the most tough and tensile, can with the base material such as metal very
Mating well, adhesive strength is the highest.Bi-component no-solvent polyurethane damping material, mainly by end isocyanide
Perester radical component, terminal hydroxy group component and other auxiliary agents composition, have preferable adhesive capacity to metal.But it is conventional
Aromatic isocyanate synthesis polyurethane under the conditions of hot and humid, cause ring because of thermal cracking or hydrolysis
Border is endangered.Additionally, only use the effect of vibration and noise reduction of the free damping structure of damping material to can not show a candle to constraint resistance
Buddhist nun's structure, therefore to be suitable for the environment-friendly type macromolecule damping-constraining material of metal base also extremely important in exploitation.
Summary of the invention
Based on this, the composite damping that it is an object of the invention to provide a kind of damping noise reduction for metal base is coated with
Layer.
Concrete technical scheme is as follows:
A kind of composite damping coating, including damping layer and restraint layer, described damping layer is the poly-ammonia of Solvent-free Modification
Ester damping coatings, described restraint layer is that Solvent-free Modification epoxy resin retrains coating；
Described Solvent-free Modification polyurethane damping coatings includes the raw material of following weight portion:
The mixed type base polyurethane prepolymer for use as of A, 100-150 weight portion；
The terminal hydroxy group compound of B, 30-50 weight portion；
The auxiliary agent of C, 1-10 weight portion；
Described Solvent-free Modification epoxy resin constraint coating includes the raw material of following weight portion:
The modified epoxy of (1) 100 weight portion；
(2) mixed curing agent of 30-50 weight portion；
(3) filler of 10-20 weight portion.
Wherein in an embodiment, described mixed type base polyurethane prepolymer for use as is by hydroxyl polyol and isophorone
Diisocyanate is reacted by the mass ratio of 30-40:60-70 and is prepared from, and described hydroxyl polyol is by mass ratio
Polyester, PPG and castor oil composition for 1:1:3.
Wherein in an embodiment, described terminal hydroxy group compound is mixed by the raw material of following weight portion:
Castor oil polyhydric alcohol 50-100 weight portion；
Glycerine 10-40 weight portion；
Silane coupler 1-3 weight portion.
Wherein in an embodiment, described auxiliary agent be mass ratio be 0.5-1:1 nano acrylic ester emulsion and
Glass fibre.
Wherein in an embodiment, described mixed curing agent be mass ratio be the dimethyl sulphur-based toluene of 4-15:1
Diamines and polyether amine curing agent.
Wherein in an embodiment, described polyether amine curing agent is polyetheramine D2000.
Wherein in an embodiment, described filler is carbon fiber.
Wherein in an embodiment, described restraint layer is also embedded with steel wire.
Wherein in an embodiment, the thickness of described damping layer is 1-2mm.
Wherein in an embodiment, the thickness of described restraint layer is 5-8mm.
Advantages of the present invention is as follows:
The composite coating of the present invention passes through restraint layer flat, damping layer sound insulation, reduces the frequency that sound source spreads out of,
Reach the purpose of quiet noise reduction, there is damping temp field width, high with sheet metal fissipation factor after compound, resistance
The features such as Buddhist nun is effective.And owing to this coating is without organic solvent, there is normal temperature cure, nontoxic, fire-retardant,
Easy construction, the advantage such as quickly.
The damping layer of the present invention is modified polyurethane damping coatings, and damping is good；The filler of restraint layer is carbon
Fiber, frivolous, pliability good.The damping layer fissipation factor of the present invention and complex loss factor compare prior art
Damping layer want more superior, damp field width, and add hardness, proportion increased, and soundproof effect is more
Significantly, drying time shortens, construction of being more convenient for, and does not ftractures when high temperature stress circulates.
Accompanying drawing explanation
Fig. 1 is the structural representation of composite damping coating of the present invention.
Description of reference numerals:
1, restraint layer；2, damping layer；3, metal base；4, steel wire.
Detailed description of the invention
The raw material that the embodiment of the present invention is used is as follows:
Raw material that Solvent-free Modification polyurethane damping coatings is used (mixed type base polyurethane prepolymer for use as, polyester,
PPG, castor oil, IPDI, castor oil polyhydric alcohol, glycerine, silane are even
Connection agent, epoxy resin, nano acrylic ester emulsion and glass fibre) it is to damp purchased from Macheng City of Hubei Province
Materials Co., Ltd；Raw material (modified epoxy, the dimethyl sulfide that Solvent-free Modification epoxy resin constraint coating uses
Base toluenediamine, polyether amine curing agent D2000, carbon fiber) purchased from Macheng City of Hubei Province damping material
Company.
Below in conjunction with embodiment and accompanying drawing, the application is further elaborated.
Embodiment 1
The present embodiment one composite damping coating, including damping layer and restraint layer, described damping layer is solvent-free
Modified polyurethane damping coatings, described restraint layer is that Solvent-free Modification epoxy resin retrains coating；
Described Solvent-free Modification polyurethane damping coatings includes the raw material of following weight portion:
A, the mixed type base polyurethane prepolymer for use as (purchased from damping material company of Macheng City of Hubei Province) of 100 weight portions；
Described mixed type base polyurethane prepolymer for use as is pressed the quality of 30:70 by hydroxyl polyol and IPDI
Being prepared from than reaction, described hydroxyl polyol is to be the polyester of 1:1:3, PPG and castor by mass ratio
Sesame oil forms.
B, the terminal hydroxy group compound of 30 weight portions；Described terminal hydroxy group compound is mixed by the raw material of following weight portion
Form:
Castor oil polyhydric alcohol 80 weight portion；
Glycerine 30 weight portion；
Silane coupler 2 weight portion.
C, the auxiliary agent of 5 weight portions；Described auxiliary agent be mass ratio be nano acrylic ester emulsion and the glass of 0.5:1
Glass fiber.
Described Solvent-free Modification epoxy resin constraint coating includes the raw material of following weight portion:
The modified epoxy of (1) 100 weight portion；
The mixed curing agent of (2) 50 weight portions；Described mixed curing agent be mass ratio be the dimethyl sulfide of 15:1
Base toluenediamine and polyether amine curing agent；Described polyether amine curing agent is polyetheramine D2000.
The filler of (3) 10 weight portions, described filler is carbon fiber.
Described restraint layer is also embedded with steel wire.
The thickness of described damping layer is 1mm；The thickness of described restraint layer is 6mm.
Concrete enforcement step is as follows:
Coat anti-corrosive primer at surface of steel plate, treat that priming paint parches.By damping layer component mixing and stirring,
To thick liquid.Then, the damping layer mixed is scratched on base material, dries.This damping layer is only coated with
Together, thickness is about 1mm.During until finger pressure does not caves in, it was demonstrated that dry solidification.Now, can prepare about
Bundle layer, mixes in proportion the component of restraint layer, obtains restraint layer liquid coating.Then, will mixing
Uniform restraint layer liquid repeatedly scratches on the damping coatings being dried, and dries to finger pressure and does not caves in,.
Blade coating restraint layer uses multiple tracks blade coating, and accumulation scratches about 6mm, also can embed steel wire in restraint layer, is dried
After can use.
Embodiment 2
The present embodiment one composite damping coating, including damping layer and restraint layer, described damping layer is solvent-free
Modified polyurethane damping coatings, described restraint layer is that Solvent-free Modification epoxy resin retrains coating；
Described Solvent-free Modification polyurethane damping coatings includes the raw material of following weight portion:
A, the mixed type base polyurethane prepolymer for use as of 150 weight portions；Described mixed type base polyurethane prepolymer for use as is many by hydroxyl
Unit's alcohol is prepared from by the molar ratio reaction of 40:60 with IPDI, described hydroxyl polyol
It is that the polyester of 1:1:3, PPG and castor oil form by mass ratio.
B, the terminal hydroxy group compound of 50 weight portions；Described terminal hydroxy group compound is mixed by the raw material of following weight portion
Form:
Castor oil polyhydric alcohol 100 weight portion；
Glycerine 40 weight portion；
Silane coupler 3 weight portion.
C, the auxiliary agent of 3 weight portions；Described auxiliary agent be mass ratio be nano acrylic ester emulsion and the glass of 1:1
Fiber.
Described Solvent-free Modification epoxy resin constraint coating includes the raw material of following weight portion:
The modified epoxy of (1) 100 weight portion；
The mixed curing agent of (2) 30 weight portions；Described mixed curing agent be mass ratio be the dimethyl sulphur-based of 5:1
Toluenediamine and polyether amine curing agent；Described polyether amine curing agent is polyetheramine D2000.
The filler of (3) 20 weight portions, described filler is carbon fiber.
Described restraint layer is also embedded with steel wire.
The thickness of described damping layer is 2mm；The thickness of described restraint layer is 8mm.
Concrete enforcement step is as follows:
Coat anti-corrosive primer at surface of steel plate, treat that priming paint parches.By damping layer component mixing and stirring,
To thick liquid.Then, the damping layer mixed is scratched on base material, dries.This damping layer is only coated with
Together, thickness is about 2mm.During until finger pressure does not caves in, it was demonstrated that dry solidification.Now, can prepare about
Bundle layer, mixes in proportion the component of restraint layer, obtains restraint layer liquid coating.Then, will mixing
Uniform restraint layer liquid repeatedly scratches on the damping coatings being dried, and dries to finger pressure and does not caves in,.
Blade coating restraint layer uses multiple tracks blade coating, and accumulation scratches about 8mm, also can embed steel wire in restraint layer, is dried
After can use.
Embodiment 3 performance test
The composite damping coating obtaining above-described embodiment carries out performance test, and result is as follows:
From upper table data it can be seen that the damping layer of the present invention is Solvent-free Modification polyurethane, and prior art
In damping layer be poly(ether-urethane)；And filler the most difference, the filler of the present invention is carbon fiber, frivolous,
Pliability is good, and the filler in the composite coating of prior art is flakey filler.The damping layer of the present invention damages
The consumption factor and complex loss factor are more superior than existing composite coating, damp field width, and add hardness,
Proportion increased, and soundproof effect is more significantly, and drying time shortens, and construction of being more convenient for, at high temperature stress
Not ftractureing during circulation, therefore, the present invention has significant effect.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (9)
1. a composite damping coating, it is characterised in that include that damping layer and restraint layer, described damping layer are
Solvent-free Modification polyurethane damping coatings, described restraint layer is that Solvent-free Modification epoxy resin retrains coating；
Described Solvent-free Modification polyurethane damping coatings includes the raw material of following weight portion:
The mixed type base polyurethane prepolymer for use as of A, 100-150 weight portion；
The terminal hydroxy group compound of B, 30-50 weight portion；
The auxiliary agent of C, 1-10 weight portion；
Described Solvent-free Modification epoxy resin constraint coating includes the raw material of following weight portion:
The modified epoxy of (1) 100 weight portion；
(2) mixed curing agent of 30-50 weight portion；
(3) filler of 10-20 weight portion；
Described terminal hydroxy group compound is mixed by the raw material of following weight portion:
Castor oil polyhydric alcohol 50-100 weight portion；
Glycerine 20-40 weight portion；
Silane coupler 1-3 weight portion.
Composite damping coating the most according to claim 1, it is characterised in that described mixed type polyurethane
The mass ratio that performed polymer is pressed 30-40:60-70 by hydroxyl polyol and IPDI reacts preparation
Forming, described hydroxyl polyol is to be the polyester of 1:1:3, PPG and castor oil group by mass ratio
Become.
Composite damping coating the most according to claim 1, it is characterised in that described auxiliary agent is mass ratio
Nano acrylic ester emulsion and glass fibre for 0.5-1:1.
Composite damping coating the most according to claim 1, it is characterised in that described mixed curing agent is
Mass ratio is dimethythiotoluene diamine and the polyether amine curing agent of 4-15:1.
Composite damping coating the most according to claim 4, it is characterised in that described polyether amine solidifies
Agent is polyetheramine D2000.
Composite damping coating the most according to claim 1, it is characterised in that described filler is carbon fiber.
7. according to the composite damping coating described in any one of claim 1-6, it is characterised in that described constraint
Layer is also embedded with steel wire.
8. according to the composite damping coating described in any one of claim 1-6, it is characterised in that described damping
The thickness of layer is 1-2mm.
9. according to the composite damping coating described in any one of claim 1-6, it is characterised in that described constraint
The thickness of layer is 5-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321644.0A CN104129132B (en) | 2014-07-07 | 2014-07-07 | Composite damping coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321644.0A CN104129132B (en) | 2014-07-07 | 2014-07-07 | Composite damping coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104129132A CN104129132A (en) | 2014-11-05 |
| CN104129132B true CN104129132B (en) | 2016-09-07 |
Family
ID=51802105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410321644.0A Active CN104129132B (en) | 2014-07-07 | 2014-07-07 | Composite damping coating |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837847A (en) * | 2017-04-11 | 2017-06-13 | 浙江贝德泵业有限公司 | A kind of low electromagnetic noise pump |
| US10233990B2 (en) * | 2017-06-29 | 2019-03-19 | Robert Bosch Llc | Composite coating for noise and vibration damping and brake pad having such a coating |
| CN108912295A (en) * | 2018-05-28 | 2018-11-30 | 上海大学 | Solvent-free self-leveling room temperature forming polyurethane damping material and preparation method thereof |
| CN114290772B (en) * | 2021-11-19 | 2022-10-25 | 四川大学 | High-strength constrained damping material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100715A (en) * | 1985-04-01 | 1986-08-27 | 中国科学院声学研究所 | Semi-solid damping material |
| CN1082581A (en) * | 1993-06-26 | 1994-02-23 | 化学工业部海洋涂料研究所 | Multifunctional damping coating layer |
| CN201826227U (en) * | 2010-09-30 | 2011-05-11 | 青岛爱尔家佳新材料有限公司 | Composite damping coating structure of high-speed railway track bed |
-
2014
- 2014-07-07 CN CN201410321644.0A patent/CN104129132B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100715A (en) * | 1985-04-01 | 1986-08-27 | 中国科学院声学研究所 | Semi-solid damping material |
| CN1082581A (en) * | 1993-06-26 | 1994-02-23 | 化学工业部海洋涂料研究所 | Multifunctional damping coating layer |
| CN201826227U (en) * | 2010-09-30 | 2011-05-11 | 青岛爱尔家佳新材料有限公司 | Composite damping coating structure of high-speed railway track bed |
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|---|---|
| CN104129132A (en) | 2014-11-05 |
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Effective date of registration: 20200922 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
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