CN103289351A - Preparation method of wide-temperature and wideband piezoelectric synergic damping material formed by vinyl - Google Patents
Preparation method of wide-temperature and wideband piezoelectric synergic damping material formed by vinyl Download PDFInfo
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Abstract
The invention relates to a preparation method of a wide-temperature and wideband piezoelectric synergic damping material formed by vinyl. The method comprises the steps of: putting 30-70 parts by weight of the vinyl and 10-100 parts by weight of rubber into an open mill for plastifying; then adding 1-5 parts of an accelerant, 1-5 parts of sulfur, 1-3 parts of an anti-aging agent, 50-200 parts of mica powder, 10-100 parts of epoxy resin, 2-15 parts of conductive particles and 100-1000 parts of piezoelectric ceramics powder to prepare a rubber compound; putting the rubber compound in a metal mould, and producing vulcanizate through vulcanization equipment at 120-160 DEG C at the pressure of 8-12MPa for 25-60min; and then putting the vulcanizate into a dimethicone bath device to polarize at 70-120 DEG C under 2-10kV/mm electric field intensity for 10-30min. The loss factor of the wide-temperature and wideband piezoelectric synergic damping material has a wide temperature range, the maximum loss factor has a large peak value, and the material has obvious wide-temperature and wideband piezoelectric synergic damping performance at the room temperature.
Description
Technical field
The invention belongs to the damping material technical field, refer more particularly to a kind of preparation method who is formed broad temperature, broadband piezoelectricity synergy damping material by vinyl chloride-vinyl acetate resin.
Background technology
Along with society and expanding economy, the pollution of vibration and noise is serious day by day, becomes one of social effects of pollution.In order to suppress, eliminate vibration and noise, structurally stick visco-elastic damping material, absorb and consume the energy of vibration, be one of major technique of noise reduction technology, be control vibration and the important technical that reduces noise.
Yet, because the absorbing mechanism of traditional visco-elastic damping material is based on the visco-elasticity of polymkeric substance, no matter be single polymers, still interpenetrating net polymer and other are polymer-modified, the height of glass transition region loss peak and width can not be regulated independently, all be difficult to satisfy simultaneously wideer damping temperature and range of frequency and higher loss factor, dynamic properties is subjected to use temperature, the influence of vibrational frequency is very big, the glass transition temperature range of polymkeric substance is very little simultaneously, if use temperature is not near this material glass temperature, then effectiveness in vibration suppression is just not so good.
Piezoelectricity synergy damping material is a kind of novel damping material, be in macromolecular material, to add piezoelectric and electro-conductive material, when material is subjected to vibrating, can energy waste except macromolecular material, piezoelectric can convert vibrational energy to electric charge, conducting particles converts thereof into heat energy again and distributes, the effect of the vibration damping of strongthener.
The damping mechanism of piezoelectricity synergy damping material is different from visco-elastic damping material, its damping mechanism is multiple energy transformation mechanism, damping capacity is the comprehensive of several waste of energy approach, the outstanding advantage of piezoelectricity synergy damping material is its working conditions, has broken through the bigger restriction of influence that traditional visco-elastic damping material is subjected to envrionment temperature and vibrational frequency.
Chinese patent CN2009100232854.0 is blend sulfurized with guttapercha and natural rubber or synthetic rubber, rubber accelerator, piezoelectricity additive etc., by changing the proportioning of each composition in this system, obtain high-performance damping material, damping factor is not less than 0.15, damping temperature domain is-50 ℃～60 ℃, though temperature range is wideer, damping factor is less than normal.
Chinese patent CN200810056409.X as body material, adds piezoelectric ceramics and carbon fiber with paracril, has obtained the damping material of better performances.
Chinese patent CN200810048480.3 by second pouring with piezoelectric ceramics, graphitized carbon black, the compound epoxide resin based piezoelectric damping material of making of Resins, epoxy, its maximum damping factor and damping temperature domain have all obtained great raising, wherein maximum loss factor improves more than 20%, and damping temperature domain improves more than 33%.
The preparation method who vinyl chloride-vinyl acetate resin is formed damping material does not see relevant report so far.
Summary of the invention
For addressing the above problem, the invention provides a kind of preparation method who is formed broad temperature, broadband piezoelectricity synergy damping material by vinyl chloride-vinyl acetate resin, the broad temperature, broadband piezoelectricity synergy damping material of being prepared by the preparation method has better damping effect, wideer use temperature and wider frequency, broad temperature, broadband piezoelectricity synergy damping material has higher dissipation factor, broad temperature, broadband piezoelectricity synergy damping material each component is uniformly dispersed, compact structure, have certain snappiness, and preparation process is simple.
For achieving the above object, the present invention adopts following technical scheme:
A kind of preparation method who is formed broad temperature, broadband piezoelectricity synergy damping material by vinyl chloride-vinyl acetate resin, broad temperature, broadband piezoelectricity synergy damping material comprises vinyl chloride-vinyl acetate resin, rubber, promotor, Sulfur, anti-aging agent, mica powder, Resins, epoxy, conducting particles and piezoelectric ceramic powder, the preparation method relates to mill, metal die, vulcanizing equipment, conductive silver glue, loft drier, high-voltage DC power supply, polarization anchor clamps and oil bath device, the preparation method comprises the preparation of rubber unvulcanizate, the sulfidization molding of rubber unvulcanizate, this three partial content of the polarization of cross-linked rubber has wherein proposed the performance index requirement to the prepared broad temperature, broadband piezoelectricity synergy damping material in cross-linked rubber polarization back.
Feature of the present invention is:
1. the preparation of rubber unvulcanizate
The rubber of the vinyl chloride-vinyl acetate resin of 30～70 weight parts and 10～100 weight parts is put into described mill plasticates, the piezoelectric ceramic powder that adds the conducting particles of mica powder, 10～100 parts by weight of epoxy resin, 2～15 weight parts of anti-aging agent, 50～200 weight parts of Sulfur, 1～3 weight part of promotor, 1～5 weight part of 1～5 weight part and 100～1000 weight parts then respectively carries out evenly mixing, prepares rubber unvulcanizate after evenly mixing;
2. the sulfidization molding of rubber unvulcanizate
1. the rubber unvulcanizate of preparing in is put into described metal die, heat at described vulcanizing equipment, the press vulcanization moulding, the temperature control of sulfidization molding is at 120～160 ℃, the pressure-controlling of sulfidization molding is at 8～12MPa, the time control of sulfidization molding is at 25～60min, and the cross-linked rubber of sulfidization molding is taken out in the sulfuration back from described metal die;
3. the polarization of cross-linked rubber
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, be placed on then in 100～120 ℃ the described loft drier and carry out drying 1～2h, cool off in room temperature environment dry back, adopt described polarization anchor clamps to be clamped in the cross-linked rubber upper and lower surface of brushing conductive resin afterwards, described polarization anchor clamps are connected with described high-voltage DC power supply, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 70～120 ℃, the strength of electric field control of polarization is at 2～10kV/mm, the time control of polarization is at 10～30min, prepare the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin after the polarization, broad temperature, broadband piezoelectricity synergy damping material performance index after testing are as follows:
1) maximum loss factor tan δ
Max〉=0.5;
2) peak width at half height Δ T
0.7Be dissipation factor 〉=0.707tan δ
MaxTemperature range 〉=30 ℃;
3) dissipation factor tan δ 〉=0.4 under 25 ℃ of temperature and range of frequency 1～1000Hz;
4) temperature range under frequency 1～1000Hz and dissipation factor tan δ 〉=0.3 covers 0～80 ℃ of temperature province at least.
Above-mentioned rubber or natural rubber, or paracril, or chlorosulfonated polyethylene rubber, or chlorinated butyl rubber, or urethanes, or isoprene-isobutylene rubber, or the composition of above-mentioned any two kinds of rubber.
Above-mentioned promotor or dibenzothiazyl disulfide, or tetramethyl-dithio thiuram, or vulkacit D, or the composition of above-mentioned any two kinds of promotor.
Above-mentioned anti-aging agent or N-is sec.-propyl-N '-diphenyl-para-phenylene diamine, or 6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline, or N-phenyl-2-naphthylamines.
Above-mentioned Resins, epoxy or E-51, or E-44, or the composition of E-51 and E-44.
Above-mentioned conducting particles or carbon black N550, or electrically conductive polyaniline, or graphite, or carbon fiber.
Above-mentioned piezoelectric ceramic powder or magnesium niobium lead zirconate titanate type piezoelectric ceramics, or Pb-based lanthanumdoped zirconate titanates type piezoelectric ceramics.
Owing to adopt technical scheme as mentioned above, the present invention produces following positively effect:
1, the broad temperature, broadband piezoelectricity synergy damping material prepared of the present invention has better damping effect, wideer use temperature and wider frequency, broad temperature, broadband piezoelectricity synergy damping material has higher dissipation factor, broad temperature, broadband piezoelectricity synergy damping material each component is uniformly dispersed, compact structure, have certain snappiness, and preparation process is simple.
2, the broad temperature, broadband piezoelectricity synergy damping material prepared of the present invention, the temperature range of its dissipation factor is wideer, and the peak value of maximum loss factor is big, and broad temperature, broadband piezoelectricity synergy damping characteristic at ambient temperature is that other prior art is not available.
3, the broad temperature, broadband piezoelectricity synergy damping material of the present invention's preparation is to form with the vinyl chloride-vinyl acetate resin, and this is that other technology is not available.
Embodiment
The present invention is a kind of preparation method who is made of broad temperature, broadband piezoelectricity synergy damping material vinyl chloride-vinyl acetate resin, the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin has better damping effect, wideer use temperature and wider frequency, broad temperature, broadband piezoelectricity synergy damping material has higher dissipation factor, broad temperature, broadband piezoelectricity synergy damping material each component is uniformly dispersed, compact structure, have certain snappiness, and preparation process is simple.
The broad temperature, broadband piezoelectricity synergy damping material that the present invention prepares comprises vinyl chloride-vinyl acetate resin, rubber, promotor, Sulfur, anti-aging agent, mica powder, Resins, epoxy, conducting particles and piezoelectric ceramic powder, and these materials all can be purchased in market.
Above-mentioned rubber or natural rubber, or paracril, or chlorosulfonated polyethylene rubber, or chlorinated butyl rubber, or urethanes, or isoprene-isobutylene rubber, or the composition of above-mentioned any two kinds of rubber, such as the composition that is paracril and isoprene-isobutylene rubber, the blending ratio of said composition is not done agreement.
Above-mentioned promotor or dibenzothiazyl disulfide, or tetramethyl-dithio thiuram, or vulkacit D, or the composition of above-mentioned any two kinds of promotor, such as the composition that is dibenzothiazyl disulfide and vulkacit D, the blending ratio of said composition is not done agreement.
Above-mentioned anti-aging agent or N-is sec.-propyl-N '-diphenyl-para-phenylene diamine, or 6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline, or N-phenyl-2-naphthylamines.
Above-mentioned Resins, epoxy or E-51, or E-44, or the composition of E-51 and E-44, the blending ratio of said composition is not done agreement.
Above-mentioned conducting particles or carbon black N550, or electrically conductive polyaniline, or graphite, or carbon fiber.
Preparation method of the present invention relates to mill, metal die, vulcanizing equipment, conductive silver glue, loft drier, high-voltage DC power supply, polarization anchor clamps and oil bath device, and above-mentioned related article are the art article commonly used, do not give unnecessary details in addition.
Preparation method of the present invention comprises the preparation of rubber unvulcanizate, the sulfidization molding of rubber unvulcanizate, this three partial content of polarization of cross-linked rubber, wherein:
The preparation process of rubber unvulcanizate and purpose be the conducting particles that will have the piezoelectric ceramic powder of piezoelectric property and have a conductive characteristic join equably the matrix that forms with vinyl chloride-vinyl acetate resin and other rubber mutually in, the rubber of 30～70 weight part vinyl chloride-vinyl acetate resins and 10～100 weight parts is formed matrix mutually, matrix can form external phase again in rubber unvulcanizate, and the piezoelectric ceramic powder of the conducting particles of 2～15 weight parts and 100～1000 weight parts is formed disperse phase, and wherein the piezoelectric ceramic powder of 100～1000 weight parts provides the ability that mechanical energy is converted into electric charge and heat energy be derived and be converted into to the conducting particles of 2～15 weight parts can with the electric charge that produces.The Sulfur of the promotor of 1～5 weight part, 1～5 weight part and 10～100 parts by weight of epoxy resin form cross-linking system, evenly can make the rubber unvulcanizate sulfuration under the mixing process effect.10～100 parts by weight of epoxy resin play the effect of auxiliary agent, and the mica powder of 50～200 weight parts forms sheet structure in rubber unvulcanizate, have increased the energy dissipation capability of rubber unvulcanizate.
The sulfidization molding process of rubber unvulcanizate and purpose are to utilize cross-linking systems such as Sulfur, promotor and Resins, epoxy that rubber unvulcanizate is generated the cross-linked rubber with three-dimensional net structure by the rubber intermolecular cross-linking, make rubber unvulcanizate possess premium propertiess such as high strength, snappiness.Putting into described metal die is the size shape that guarantees cross-linked rubber, and 120～160 ℃ sulfidization molding temperature is in order to cause and accelerate sulfidization molding speed, and the pressure 8～12MPa of sulfidization molding is in order to control the size shape of cross-linked rubber, the time control of sulfidization molding has guaranteed that at 25～60min sulfidization molding is more abundant, has also guaranteed the performance of cross-linked rubber simultaneously.
The polarization process of cross-linked rubber and purpose are to make each electricdomain spontaneous polarization direction of piezoelectric ceramic powder in the cross-linked rubber all trend towards the direction of electric field by certain temperature and under the highfield effect, polarization is handled the back piezoelectric ceramic powder and is had certain polarizability, bound charge just appears in the two ends of polarization, namely an end is positive charge and the other end is negative charge, because the effect of bound charge, electrode surface at piezoelectric ceramic powder will adsorb free charge, do the time spent and will produce compression set and cause electricdomain to deflect when cross-linked rubber is subjected to the external force parallel with direction of polarization, distance between described positive charge and the described negative charge is diminished, remnant polarization also will diminish, originally some is released the free charge that was adsorbed and electric discharge phenomena occur, realize the conversion of energy, thereby make the damping material of preparing after the polarization possess broad temperature, broadband piezoelectricity synergism characteristic.
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, has guaranteed that the cross-linked rubber upper and lower surface evenly accepts high-voltage electric field, avoids shelf depreciation, the influence polarization.Be placed on and carry out the sulfuration that dry 1～2h has guaranteed cross-linked rubber in 100～120 ℃ the above-mentioned loft drier, solidify fully, cool off in room temperature environment dry back, adopt the clamping of described polarization anchor clamps to brush the cross-linked rubber upper and lower surface of conductive resin and described polarization anchor clamps are connected with above-mentioned high-voltage DC power supply afterwards, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 70～120 ℃, the strength of electric field control of polarization is at 2～10kV/mm, the time control of polarization is at 10～30min, these conditions have all guaranteed polarization effect, guaranteed that also each electricdomain spontaneous polarization direction of piezoelectric ceramic powder in the cross-linked rubber all trends towards the direction of electric field, polarization is handled the back piezoelectric ceramic powder and is had certain polarizability.
The broad temperature, broadband piezoelectricity synergy damping material performance index scope of being made up of vinyl chloride-vinyl acetate resin after testing that the present invention prepares is as follows:
Maximum loss factor tan δ
Max〉=0.5; Peak width at half height Δ T
0.7Be dissipation factor 〉=0.707tan δ
MaxTemperature range 〉=30 ℃; Dissipation factor tan δ 〉=0.4 under 25 ℃ of temperature and range of frequency 1～1000Hz; Temperature range under frequency 1～1000Hz and dissipation factor tan δ 〉=0.3 covers 0～80 ℃ of temperature province at least.
The present invention is further described below in conjunction with embodiment, it should be understood that these embodiment only are used for exemplifying with indicative, do not limit the scope of the invention, and also do not limit the present invention for required protection.
Embodiment 1:
The weight part of the preparation according to the form below of rubber unvulcanizate is filled a prescription, and in described mill, plasticate, evenly mixing, prepare rubber unvulcanizate after evenly mixing.
The rubber unvulcanizate that last table is prepared put into described metal die and heat at described vulcanizing equipment, the press vulcanization moulding, the temperature control of sulfidization molding is at 155 ℃, the pressure-controlling of sulfidization molding is at 12MPa, the time control of sulfidization molding is at 60min, and the cross-linked rubber of sulfidization molding is taken out in the sulfuration back from described metal die.
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, be placed on then in 100 ℃ the described loft drier and carry out dry 2h, cool off in room temperature environment dry back, adopt described polarization anchor clamps to be clamped in the cross-linked rubber upper and lower surface of brushing conductive resin afterwards, described polarization anchor clamps are connected with described high-voltage DC power supply, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 100 ℃, the strength of electric field control of polarization is at 5kV/mm, the time control of polarization is prepared the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin at 30min after the polarization.
Embodiment 2:
The weight part of the preparation according to the form below of rubber unvulcanizate is filled a prescription, and in described mill, plasticate, evenly mixing, prepare rubber unvulcanizate after evenly mixing.
The rubber unvulcanizate that last table is prepared put into described metal die and heat at described vulcanizing equipment, the press vulcanization moulding, the temperature control of sulfidization molding is at 145 ℃, the pressure-controlling of sulfidization molding is at 10MPa, the time control of sulfidization molding is at 35min, and the cross-linked rubber of sulfidization molding is taken out in the sulfuration back from described metal die.
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, be placed on then in 110 ℃ the described loft drier and carry out dry 1.5h, cool off in room temperature environment dry back, adopt described polarization anchor clamps to be clamped in the cross-linked rubber upper and lower surface of brushing conductive resin afterwards, described polarization anchor clamps are connected with described high-voltage DC power supply, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 70 ℃, the strength of electric field control of polarization is at 4kV/mm, the time control of polarization is prepared the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin at 30min after the polarization.
Embodiment 3:
The weight part of the preparation according to the form below of rubber unvulcanizate is filled a prescription, and in described mill, plasticate, evenly mixing, prepare rubber unvulcanizate after evenly mixing.
The rubber unvulcanizate that last table is prepared put into described metal die and heat at described vulcanizing equipment, the press vulcanization moulding, the temperature control of sulfidization molding is at 150 ℃, the pressure-controlling of sulfidization molding is at 8MPa, the time control of sulfidization molding is at 30min, and the cross-linked rubber of sulfidization molding is taken out in the sulfuration back from described metal die.
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, be placed on then in 120 ℃ the described loft drier and carry out dry 1h, cool off in room temperature environment dry back, adopt described polarization anchor clamps to be clamped in the cross-linked rubber upper and lower surface of brushing conductive resin afterwards, described polarization anchor clamps are connected with described high-voltage DC power supply, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 120 ℃, the strength of electric field control of polarization is at 2kV/mm, the time control of polarization is prepared the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin at 30min after the polarization.
Embodiment 4:
The weight part of the preparation according to the form below of rubber unvulcanizate is filled a prescription, and in described mill, plasticate, evenly mixing, prepare rubber unvulcanizate after evenly mixing.
The rubber unvulcanizate that last table is prepared put into described metal die and heat at described vulcanizing equipment, the press vulcanization moulding, the temperature control of sulfidization molding is at 140 ℃, the pressure-controlling of sulfidization molding is at 8MPa, the time control of sulfidization molding is at 30min, and the cross-linked rubber of sulfidization molding is taken out in the sulfuration back from described metal die.
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, be placed on then in 120 ℃ the described loft drier and carry out dry 1h, cool off in room temperature environment dry back, adopt described polarization anchor clamps to be clamped in the cross-linked rubber upper and lower surface of brushing conductive resin afterwards, described polarization anchor clamps are connected with described high-voltage DC power supply, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 90 ℃, the strength of electric field control of polarization is at 10kV/mm, the time control of polarization is prepared the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin at 10min after the polarization.
Broad temperature, broadband piezoelectricity synergy damping material performance index scope such as the following table after testing that above-described embodiment 1～4 is prepared:
The embodiment that selects for use in this article in order to disclose purpose of the present invention currently thinks to suit, but will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the interior embodiment of this design and the scope of the invention.
Claims (7)
1. the preparation method who is formed broad temperature, broadband piezoelectricity synergy damping material by vinyl chloride-vinyl acetate resin, broad temperature, broadband piezoelectricity synergy damping material comprises vinyl chloride-vinyl acetate resin, rubber, promotor, Sulfur, anti-aging agent, mica powder, Resins, epoxy, conducting particles and piezoelectric ceramic powder, the preparation method relates to mill, metal die, vulcanizing equipment, conductive silver glue, loft drier, high-voltage DC power supply, polarization anchor clamps and oil bath device, the preparation method comprises the preparation of rubber unvulcanizate, the sulfidization molding of rubber unvulcanizate, this three partial content of the polarization of cross-linked rubber has wherein proposed the performance index requirement to the prepared broad temperature, broadband piezoelectricity synergy damping material in cross-linked rubber polarization back; It is characterized in that:
1. the preparation of rubber unvulcanizate
The rubber of the vinyl chloride-vinyl acetate resin of 30～70 weight parts and 10～100 weight parts is put into described mill plasticates, the piezoelectric ceramic powder that adds the conducting particles of mica powder, 10～100 parts by weight of epoxy resin, 2～15 weight parts of anti-aging agent, 50～200 weight parts of Sulfur, 1～3 weight part of promotor, 1～5 weight part of 1～5 weight part and 100～1000 weight parts then respectively carries out evenly mixing, prepares rubber unvulcanizate after evenly mixing;
2. the sulfidization molding of rubber unvulcanizate
1. the rubber unvulcanizate of preparing in is put into described metal die, heat at described vulcanizing equipment, the press vulcanization moulding, the temperature control of sulfidization molding is at 120～160 ℃, the pressure-controlling of sulfidization molding is at 8～12MPa, the time control of sulfidization molding is at 25～60min, and the cross-linked rubber of sulfidization molding is taken out in the sulfuration back from described metal die;
3. the polarization of cross-linked rubber
The described conductive silver glue that will stir with hairbrush is evenly brushed the upper and lower surface at cross-linked rubber, be placed on then in 100～120 ℃ the described loft drier and carry out drying 1～2h, cool off in room temperature environment dry back, adopt described polarization anchor clamps to be clamped in the cross-linked rubber upper and lower surface of brushing conductive resin afterwards, described polarization anchor clamps are connected with described high-voltage DC power supply, put into the described oil bath device that is filled with dimethyl silicone oil again, regulating described high-voltage DC power supply voltage polarizes to the cross-linked rubber in the described oil bath device, the temperature control of polarization is at 70～120 ℃, the strength of electric field control of polarization is at 2～10kV/mm, the time control of polarization is at 10～30min, prepare the broad temperature, broadband piezoelectricity synergy damping material of being made up of vinyl chloride-vinyl acetate resin after the polarization, broad temperature, broadband piezoelectricity synergy damping material performance index after testing are as follows:
1) maximum loss factor tan δ
Max〉=0.5;
2) peak width at half height Δ T
0.7Be dissipation factor 〉=0.707tan δ
MaxTemperature range 〉=30 ℃;
3) dissipation factor tan δ 〉=0.4 under 25 ℃ of temperature and range of frequency 1～1000Hz;
4) temperature range under frequency 1～1000Hz and dissipation factor tan δ 〉=0.3 covers 0～80 ℃ of temperature province at least.
2. according to the described preparation method who is formed broad temperature, broadband piezoelectricity synergy damping material by vinyl chloride-vinyl acetate resin of claim 1, it is characterized in that: described rubber or natural rubber, or paracril, or chlorosulfonated polyethylene rubber, or chlorinated butyl rubber, or urethanes, or isoprene-isobutylene rubber, or the composition of above-mentioned any two kinds of rubber.
3. according to the described preparation method who is formed broad temperature, broadband piezoelectricity synergy damping material by vinyl chloride-vinyl acetate resin of claim 1, it is characterized in that: described promotor or dibenzothiazyl disulfide, or tetramethyl-dithio thiuram, or vulkacit D, or the composition of above-mentioned any two kinds of promotor.
4. form the preparation method of broad temperature, broadband piezoelectricity synergy damping material according to claim 1 is described by vinyl chloride-vinyl acetate resin, it is characterized in that: described anti-aging agent or N-is sec.-propyl-N '-diphenyl-para-phenylene diamine, or 6-oxyethyl group-2,2,4-trimethylammonium-1,2-dihyaroquinoline, or N-phenyl-2-naphthylamines.
5. form the preparation method of broad temperature, broadband piezoelectricity synergy damping material according to claim 1 is described by vinyl chloride-vinyl acetate resin, it is characterized in that: described Resins, epoxy or E-51, or E-44, or the composition of E-51 and E-44.
6. form the preparation method of broad temperature, broadband piezoelectricity synergy damping material according to claim 1 is described by vinyl chloride-vinyl acetate resin, it is characterized in that: described conducting particles or carbon black N550, or electrically conductive polyaniline, or graphite, or carbon fiber.
7. form the preparation method of broad temperature, broadband piezoelectricity synergy damping material according to claim 1 is described by vinyl chloride-vinyl acetate resin, it is characterized in that: described piezoelectric ceramic powder or magnesium niobium lead zirconate titanate type piezoelectric ceramics, or Pb-based lanthanumdoped zirconate titanates type piezoelectric ceramics.
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| CN106008967A (en) * | 2016-06-28 | 2016-10-12 | 郭舒洋 | Preparing method for high-strength polyaniline microsphere/epoxy damping material |
| CN107353656A (en) * | 2017-07-31 | 2017-11-17 | 吉林大学 | Vehicle thermoplastic environment-protecting composite damping offset plate and preparation method thereof |
| CN110387121A (en) * | 2018-04-20 | 2019-10-29 | 中国船舶重工集团公司第七一一研究所 | Composite material, elastic element and isolation mounting and preparation method thereof |
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| CN103881253A (en) * | 2014-03-19 | 2014-06-25 | 中国船舶重工集团公司第七二五研究所 | Piezoelectric damping material using polypyrrole as conductive channel and preparation method thereof |
| CN103881253B (en) * | 2014-03-19 | 2017-03-01 | 中国船舶重工集团公司第七二五研究所 | A kind of poly- arsenic presses against piezo-electric damping material and preparation method for conductive channel |
| CN104292678A (en) * | 2014-10-27 | 2015-01-21 | 安徽锐视光电技术有限公司 | Strong-adhesion synthetic rubber for color selector and preparation method of strong-adhesion synthetic rubber |
| CN104910475A (en) * | 2015-06-17 | 2015-09-16 | 周彩球 | Regenerated rubber material |
| CN105175826A (en) * | 2015-09-18 | 2015-12-23 | 国网智能电网研究院 | Piezoelectric damping rubber material and preparation method thereof |
| CN105175826B (en) * | 2015-09-18 | 2018-11-16 | 国网浙江省电力公司 | A kind of piezo-electric damping rubber material and preparation method thereof |
| CN106008967A (en) * | 2016-06-28 | 2016-10-12 | 郭舒洋 | Preparing method for high-strength polyaniline microsphere/epoxy damping material |
| CN107353656A (en) * | 2017-07-31 | 2017-11-17 | 吉林大学 | Vehicle thermoplastic environment-protecting composite damping offset plate and preparation method thereof |
| CN107353656B (en) * | 2017-07-31 | 2020-06-30 | 吉林大学 | Thermoplastic environment-friendly composite damping rubber plate for vehicle and preparation method thereof |
| CN110387121A (en) * | 2018-04-20 | 2019-10-29 | 中国船舶重工集团公司第七一一研究所 | Composite material, elastic element and isolation mounting and preparation method thereof |
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