CN101191000A - IPN piezo-electric damping material - Google Patents
IPN piezo-electric damping material Download PDFInfo
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- CN101191000A CN101191000A CNA2006101296817A CN200610129681A CN101191000A CN 101191000 A CN101191000 A CN 101191000A CN A2006101296817 A CNA2006101296817 A CN A2006101296817A CN 200610129681 A CN200610129681 A CN 200610129681A CN 101191000 A CN101191000 A CN 101191000A
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- ipn
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- piezoelectric
- damping material
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Abstract
The invention relates to an IPN piezoelectric-damping material, which employs raw materials of acrylate, vinyl acetate, polyester/ ether polyol, chain extender, etc. and combines with various reaction promoters to synthesize multi-composite acrylate (PA)IPN or polyurethane/ polyacrylate (PUA) IPN matrix. Piezoelectric materials and conductive materials are selected and the surface of the two materials is modified, or a part of the piezoelectric materials and the conductive materials are in-situ polymerized to cause the two materials to be dispersed in the IPN matrix as well as form good interface combination and conductive loop, thus preparing PA matrix or the IPN piezoelectric-damping material of PUA matrix. The invention is characterized in that: the invention not only has viscous damping property of polymer IPN matrix, but also produces the effects of piezoelectric damping and dislocation damping. High performance damping materials with synergistic effect of the viscous damping- the piezoelectric damping- the dislocation damping can be obtained through reasonable design and control. The piezoelectric-damping material can provide damping value tan Delta that is equal to or more than 0.5 in wide temperature range of minus 50-100 DEG C.
Description
Technical field
The present invention relates to the IPN piezo-electric damping material, belong to field of functional materials.
Background technology
Damping is effective ways and the important channel that solves noise and this environmental pollution of vibration.The tradition damping material mainly is a superpolymer, wherein the most effectively has the copolymer material of IPN structure.The damping principle of superpolymer is based on its visco-elasticity, with the mechanical energy of outer field action or acoustic energy part be transformed into heat energy dissipation, be widely used in rocket, guided missile, man-made satellite, various precision instrument and equipment, automobile train and the apparatus for building.The applied temps of polymer as damping material depends on second-order transition temperature strongly, and in practical engineering application, factors vary such as mesomerism, envrionment temperature easily causes the vibratory response of polymer materials to change, have a strong impact on the reliability and stability of damping material, become the bottleneck that the restriction polymer as damping material is used and developed.Addressing the above problem effective means is exploitation organic and inorganic compound intelligent damping material.The nineties in 20th century, imagining once proposition of preparation polymer-based carbon piezo-electric damping material becomes the research focus in material field very soon.The polymer-based carbon piezo-electric damping material is synthetic according to certain mode of communicating by piezoelectric phase material and non-piezoelectric phase material and a kind of matrix material with piezoelectric effect that constitute, can realize the conversion of vibration mechanical energy-electric energy-heat energy, have the unrivaled high-performance of traditional polymer damping material.
Summary of the invention
With acrylate, vinyl acetate, polyester/ethoxylated polyhydric alcohol, chainextender etc. is raw material, is used various reaction promoters, synthetic polycomponent acrylate (PA) IPN or polyurethane/polyacrylate (PUA) IPN matrix.Select piezoelectric and electro-conductive material, and it is carried out surface modification, or part piezoelectric and electro-conductive material are carried out in-situ polymerization, it is dispersed in the IPN matrix, and form good interface combination and galvanic circle, prepare the IPN piezo-electric damping material of PA base or PUA base.This damping material also can produce piezo-electric damping and dislocation damping effect except that the viscous damping performance with polymer IPN matrix.By appropriate design and control, can obtain the high-performance damping material of viscous damping-piezo-electric damping-dislocation damping synergistic effect.
Embodiment
In the four-hole boiling flask that electric mixer, reflux condensing tube, thermometer, import and export of nitrogen are housed, add 8% emulsifying agent (sodium lauryl sulphate and OP-10) and 60% deionized water under example 1 room temperature, in 65 ℃ of network I mix monomer (methyl methacrylate, ethyl propenoate, butyl acrylate, vinylformic acid and Vinylstyrene) and part ammonium persulfate initiator (0.3wt% network I monomer) that drip 16wt% simultaneously, be warming up to intensification limit, 70 ℃ of back and drip all the other initiators, 80～85 ℃ of reaction 2h get network I emulsion.Network I is cooled to 60 ℃, drip the network II mix monomer (methyl methacrylate, ethyl propenoate, butyl acrylate, vinylformic acid and Vinylstyrene) of 24wt%, intensification limit, swelling 1h back drips the initiator of network II, 80～85 ℃ of reaction 1.5h, be warming up to 90 ℃ of reaction 0.5h again, finish reaction, get the acrylate IPN emulsion of 40wt% solid content.
With a certain amount of piezoelectric Pb-based lanthanumdoped zirconate titanates (PZT), electro-conductive material (carbon black, SnO
2) wait homodisperse in the adding above-mentioned IP N emulsion, and be poured into die for molding, drying, get the IPN piezoelectric damping composite material.By polarization, promptly get high damping IPN piezo-electricity composite material.This piezo-electric damping material can provide damping value tan δ 〉=0.5 in-50～100 ℃ of wide temperature territories.
Claims (8)
1. an IPN piezo-electric damping material is a raw material with acrylate, vinyl acetate, polyester/ethoxylated polyhydric alcohol, chainextender etc., is used various reaction promoters, synthetic polycomponent acrylate (PA) IPN or polyurethane/polyacrylate (PUA) IPN matrix.Select piezoelectric and electro-conductive material, and it is carried out surface modification, or part piezoelectric and electro-conductive material are carried out in-situ polymerization, it is dispersed in the IPN matrix, and form good interface combination and galvanic circle, prepare the IPN piezo-electric damping material of PA base or PUA base.Except that viscous damping performance, also can produce piezo-electric damping and dislocation damping effect with polymer IPN matrix.By appropriate design and control, can obtain the high-performance damping material of viscous damping-piezo-electric damping-dislocation damping synergistic effect.
2. by the described IPN piezo-electric damping material of claim 1, it is characterized in that emulsifying agent (sodium lauryl sulphate and OP-10) 8wt%, deionized water 60wt%.
3. by the described IPN piezo-electric damping material of claim 1, it is characterized in that network I mix monomer (methyl methacrylate, ethyl propenoate, butyl acrylate, vinylformic acid and Vinylstyrene) and network II mix monomer (methyl methacrylate, ethyl propenoate, butyl acrylate, vinylformic acid and Vinylstyrene) ratio are 1: 1～1: 1.5.
4. by the described IPN piezo-electric damping material of claim 1, the solid content that it is characterized in that the IPN emulsion is 40%.
5. by the described IPN piezo-electric damping material of claim 2～4, it is characterized in that under the room temperature in the four-hole boiling flask that electric mixer, reflux condensing tube, thermometer, import and export of nitrogen are housed, adding 8% emulsifying agent (sodium lauryl sulphate and OP-10) and 60% deionized water, drip network I mix monomer (methyl methacrylate, ethyl propenoate, butyl acrylate, vinylformic acid and Vinylstyrene) and part initiator (ammonium persulphate) simultaneously in 65 ℃, be warming up to intensification limit, 70 ℃ of back and drip all the other initiators, 80～85 ℃ of reaction 2h get network I emulsion.Network I is cooled to 60 ℃, drip network II mix monomer (methyl methacrylate, ethyl propenoate, butyl acrylate, vinylformic acid and Vinylstyrene), intensification limit, swelling 1h back drips the initiator of network II, 80～85 ℃ of reaction 1.5h, be warming up to 90 ℃ of reaction 0.5h again, finish reaction, get the acrylate IPN emulsion of 40wt% solid content.
6. by the described IPN piezo-electric damping material of claim 5, it is characterized in that emulsion storage period 〉=6 month, tan δ 〉=0.4.
7. by the described IPN piezo-electric damping material of claim 5, it is characterized in that a certain amount of piezoelectric Pb-based lanthanumdoped zirconate titanates (PZT), electro-conductive material (carbon black, SnO
2) wait homodisperse in the adding above-mentioned IP N emulsion, and be poured into die for molding, drying, get the IPN piezoelectric damping composite material.
8. by the described IPN piezo-electric damping material of claim 6, it is characterized in that promptly getting high damping IPN piezo-electricity composite material by polarization.This piezo-electric damping material can provide damping value tan δ 〉=0.5 in-50～100 ℃ of wide temperature territories.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101296817A CN101191000A (en) | 2006-11-29 | 2006-11-29 | IPN piezo-electric damping material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101296817A CN101191000A (en) | 2006-11-29 | 2006-11-29 | IPN piezo-electric damping material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101191000A true CN101191000A (en) | 2008-06-04 |
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ID=39486211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101296817A Pending CN101191000A (en) | 2006-11-29 | 2006-11-29 | IPN piezo-electric damping material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101191000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634187A (en) * | 2012-04-05 | 2012-08-15 | 哈尔滨工程大学 | Piezoelectric and conductive grafting type polyurethane base composite damping material and preparation method thereof |
| CN114874609A (en) * | 2022-03-07 | 2022-08-09 | 上海交通大学 | High-damping intelligent vibration damping sheet material and preparation method thereof |
-
2006
- 2006-11-29 CN CNA2006101296817A patent/CN101191000A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634187A (en) * | 2012-04-05 | 2012-08-15 | 哈尔滨工程大学 | Piezoelectric and conductive grafting type polyurethane base composite damping material and preparation method thereof |
| CN114874609A (en) * | 2022-03-07 | 2022-08-09 | 上海交通大学 | High-damping intelligent vibration damping sheet material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Xiuping Document name: Notification of Publication of the Application for Invention |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Xiuping Document name: Notification of Publication of the Application for Invention |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080604 |