CN1314747C - Piezoelectric ceramic and pioloform composite materials - Google Patents

Piezoelectric ceramic and pioloform composite materials Download PDF

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Publication number
CN1314747C
CN1314747C CNB2005100182087A CN200510018208A CN1314747C CN 1314747 C CN1314747 C CN 1314747C CN B2005100182087 A CNB2005100182087 A CN B2005100182087A CN 200510018208 A CN200510018208 A CN 200510018208A CN 1314747 C CN1314747 C CN 1314747C
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piezoelectric ceramics
polyvinyl acetal
pioloform
composite materials
piezoelectric
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CNB2005100182087A
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CN1654532A (en
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董丽杰
熊传溪
权红英
张慧玲
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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Abstract

The present invention relates to a composite material of piezoelectric ceramics and a non-polar polymer, particularly to a composite material of piezoelectric ceramics and polyvinyl acetal. The composite material is characterized in that the composite material comprises piezoelectric ceramics and polyvinyl acetal which respectively account for the following volume ratios: the piezoelectric ceramics accounts for 50 to 90%, and the polyvinyl acetal accounts for 10 to 50%. Conductive particles are additionally added into the piezoelectric ceramics and the polyvinyl acetal. The conductive particles account for 0.01 to 0.5% of the volume of the piezoelectric ceramics and the polyvinyl acetal. The present invention provides a composite material of piezoelectric ceramics and polyvinyl acetal, and simultaneously provides a composite material of piezoelectric ceramics and polyvinyl acetal, wherein the composite material has a high piezoelectric property.

Description

Piezoelectric ceramics and pioloform composite materials
Technical field
The present invention relates to a kind of piezo-electricity composite material, be specifically related to a kind of piezoelectric ceramics and non-polar polymer matrix material.
Background technology
Polymer phase in piezoelectric ceramics and the polymer composites has excellent cohesiveness and good processibility, and polymer phase commonly used at present mainly contains polyvinylidene difluoride (PVDF) (PVDF), vinylidene-trifluoro-ethylene copolymer P (VDF-TrFE), vinylidene-TFE copolymer P (VDF-TeFE), Ni Long11 and Resins, epoxy etc.Successfully be applied to various electricity-mechanical transducer and electricity-acoustic transducer.For example microphone, loud speaker, nautical receiving set, computor-keyboard and noncontacting switch etc.
The synthetic macromolecule piezoelectric comprises non-polar high polymer piezoelectrics and polarity polymer piezoelectrics.Polyvinylidene difluoride (PVDF) (PVDF), fluorinated ethylene propylene, polyvinyl chloride (PVC), polycarbonate (PC), Ni Long11 etc. are polarity polymer piezoelectrics.Promote the polarization of piezo-electricity composite material by self polarity, to improve the piezoelectric property of matrix material.Polyethylene (PE), polypropylene (PP) etc. belong to non-polar high polymer, by ought to there not being piezoelectricity, but owing to have asymmetrically distributed impurity charge in the material or also can make this class material have certain piezoelectricity because of the injection effect of electrode, but in general, non-polar polymer is that the piezoelectric property of piezo-electric ceramic composite material of matrix is less, is generally 10～20pC/N.
Polyvinyl acetal (PVB) be by the polyethylene alcohols and aldehydes under the katalysis of acid, the synthetic resins that condensation reaction forms.Nontoxic, nothing is smelt, and normal temperature is the white powder solid down, and softening temperature is 100-150 ℃.Has the high transparency, good insulation performance, film-forming properties and shock resistance, UV resistant, water-fast, oil resistant, ageing-resistant, low temperature resistant, excellent property.With phenolic aldehyde, Resins, epoxy, nitrocotton, natural resin etc. good intermiscibility is arranged, can improve the performance of these resins.PVB can be used for the middle layer of shatter proof glass.PVB self or with other resins and with making the tackiness agent of multiple wadding all has good cohesiveness to metal, glass, plastics, leather, paper and cloth etc.
Summary of the invention
The purpose of this invention is to provide a kind of piezoelectric ceramics and pioloform composite materials; Another object of the present invention provides high piezoelectric ceramics of a kind of piezoelectric property and pioloform composite materials.
To achieve these goals, technical scheme of the present invention is: piezoelectric ceramics and pioloform composite materials, it is characterized in that: it comprises piezoelectric ceramics and polyvinyl acetal, and the shared volume ratio of each composition is: piezoelectric ceramics 50-90%, polyvinyl acetal 10-50%.
Described piezoelectric ceramics is present most widely used lead titanate-zirconate (PZT), lead titanate (PT), or the more good ternary system piezoelectric ceramics PCM of performance (adds Pb (Mg among the PZT 1/3Nb 2/3) O 3), (PZT adds Pb (Mn to PMS 1/3Sb 2/3) O 3), and leadless piezo-electric ceramic K 1-xNa xNbO 3Deng.Described polyvinyl acetal is a polyvinyl butyral acetal.
Its preparation method: with polyvinyl acetal and the 50-90% ceramic powder (the each component sum is 100%) of 10-50%, thorough mixing is even in mixing machine by volume; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 40-50pC/N.
Add conducting particles in described piezoelectric ceramics and the polyvinyl acetal, conducting particles accounts for the 0.01-0.5% of piezoelectric ceramics and polyvinyl acetal volume.
Described conducting particles is carbon black, rare earth alloy powder or metallics.
Its preparation method: by volume with polyvinyl acetal and the 50-90% ceramic powder of 10-50%, account for the 0.01-0.5% of piezoelectric ceramics and polyvinyl acetal volume by conducting particles, it is even to choose polyvinyl acetal, ceramic powder and conducting particles thorough mixing in mixing machine; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 60-75pC/N.
The present invention is matrix with the polyvinyl acetal, carries out compoundly with piezoelectric ceramics, can prepare piezoelectric ceramics and pioloform composite materials by film-forming properties and cohesiveness that polyvinyl acetal is good.
Because polyvinyl acetal as non-polar polymer, when evenly being wrapped in ceramic surface, influence the polarization of piezoelectric ceramics, so piezoelectric property is lower.For improving its polarized performance, the present invention promotes the polar conducting particles by adding, and improves the degree of polarization of piezoelectric ceramics, thereby improves the piezoelectric property of matrix material, its piezoelectric property can reach 60-75pC/N, and the present invention has the high characteristics of piezoelectric property.
The invention provides a kind of piezoelectric ceramics and pioloform composite materials; High piezoelectric ceramics of a kind of piezoelectric property and pioloform composite materials are provided simultaneously.
Description of drawings
Fig. 1 is the SEM photo figure of the embodiment of the invention 1
Fig. 2 is that the embodiment of the invention 2 adds the piezoelectric property of carbon black front and back and the graph of relation of polyvinyl acetal volume fraction
Embodiment
Embodiment 1:
By volume with polyvinyl acetal and 90-50% lead titanate-zirconate (PZT) powder of 10-50%, thorough mixing is even in mixing machine, on vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again.The piezoelectric property of matrix material can reach 47pC/N, the SEM photo of matrix material is seen Fig. 1, can see clearly on the SEM of PZT/PVB matrix material that the PZT particle surface has the jelly PVB of layer of transparent, this is because the cohesiveness and the film-forming properties of PVB excellence cause PVB that PZT is closely coated.
Embodiment 2:
Piezoelectric ceramics 50-90%, polyvinyl acetal 10-50% by volume, press the 0.01-0.3% carbon black of piezoelectric ceramics and polyvinyl acetal volume, it is even to choose piezoelectric ceramics, polyvinyl acetal and carbon black thorough mixing in mixing machine, on vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again.Add the piezoelectric property of carbon black front and back matrix material and the relation curve of polyvinyl acetal volume fraction and see Fig. 2, add the correlation curve of carbon black front and back PZT/ pioloform composite materials piezoelectric property and polyvinyl acetal volume fraction.As can be seen, sooty adds the piezoelectric property that has improved matrix material, and its piezoelectric constant can reach 65pC/N.
Embodiment 3:
Piezoelectric ceramics and pioloform composite materials, it is made up of ternary system piezoelectric ceramics PCM and polyvinyl acetal, and the shared volume ratio of each composition is: ternary system piezoelectric ceramics PCM 50%, polyvinyl acetal 50%.
Its preparation method: with 50% polyvinyl acetal and 50% ternary system piezoelectric ceramics PCM, thorough mixing is even in mixing machine by volume; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 45pC/N.
Embodiment 4:
Piezoelectric ceramics and pioloform composite materials, it is made up of ternary system piezoelectric ceramics PCM and polyvinyl acetal, and the shared volume ratio of each composition is: ternary system piezoelectric ceramics PCM 90%, polyvinyl acetal 10%.
Its preparation method: with 10% polyvinyl acetal and 90% ternary system piezoelectric ceramics PCM, thorough mixing is even in mixing machine by volume; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 55pC/N.
Embodiment 5:
Piezoelectric ceramics and pioloform composite materials, it is made up of lead titanate (PT), polyvinyl acetal and metallics, metallics is an iron powder, and lead titanate (PT), the shared volume ratio of polyvinyl acetal are: lead titanate (PT) 50%, polyvinyl acetal 50%; Iron powder accounts for 0.01% of lead titanate (PT) and polyvinyl acetal volume.
Its preparation method: by volume with lead titanate (PT) 50%, polyvinyl acetal 50%, account for 0.01% of lead titanate (PT) and polyvinyl acetal volume by iron powder, it is even to choose lead titanate (PT), polyvinyl acetal and iron powder thorough mixing in mixing machine; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 30pC/N.
Embodiment 6:
Piezoelectric ceramics and pioloform composite materials, it is made up of lead titanate (PT), polyvinyl acetal and metallics, metallics is an iron powder, and lead titanate (PT), the shared volume ratio of polyvinyl acetal are: lead titanate (PT) 90%, polyvinyl acetal 10%; Iron powder accounts for 0.01% of lead titanate (PT) and polyvinyl acetal volume.
Its preparation method: by volume with lead titanate (PT) 90%, polyvinyl acetal 10%, account for 0.01% of lead titanate (PT) and polyvinyl acetal volume by iron powder, it is even to choose lead titanate (PT), polyvinyl acetal and iron powder thorough mixing in mixing machine; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 49pC/N.
Embodiment 7:
Piezoelectric ceramics and pioloform composite materials, it is made up of lead titanate (PT), polyvinyl acetal and rare earth alloy powder, rare earth alloy powder is the Tb-Dy-Fe alloy powder, and lead titanate (PT), the shared volume ratio of polyvinyl acetal are: lead titanate (PT) 90%, polyvinyl acetal 10%; The Tb-Dy-Fe alloy powder accounts for 0.5% of lead titanate (PT) and polyvinyl acetal volume.
Its preparation method: by volume with lead titanate (PT) 90%, polyvinyl acetal 10%, account for 0.5% of lead titanate (PT) and polyvinyl acetal volume by the Tb-Dy-Fe alloy powder, it is even to choose lead titanate (PT), polyvinyl acetal and Tb-Dy-Fe alloy powder thorough mixing in mixing machine; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 55pC/N.
Embodiment 8:
Piezoelectric ceramics and pioloform composite materials, it is by leadless piezo-electric ceramic K 1-xNa xNbO 3, polyvinyl acetal and metallics form, metallics is a copper particle, leadless piezo-electric ceramic K 1-xNa xNbO 3, the shared volume ratio of polyvinyl acetal is: leadless piezo-electric ceramic K 1-xNa xNbO 370%, polyvinyl acetal 30%; Copper particle accounts for leadless piezo-electric ceramic K 1-xNa xNbO 3With 0.1% of polyvinyl acetal volume.
Its preparation method: by volume with leadless piezo-electric ceramic K 1-xNa xNbO 370%, polyvinyl acetal 30%, accounts for leadless piezo-electric ceramic K by copper particle 1-xNa xNbO 3With 0.1% of polyvinyl acetal volume, choose leadless piezo-electric ceramic K 1-xNa xNbO 3, polyvinyl acetal and copper particle thorough mixing in mixing machine be even; On vulcanizing press, mold pressing 15-30min under 120-160 ℃, 10-25MPa, piezoelectric ceramics and pioloform composite materials are promptly prepared in the pressurize cooling again, and its piezoelectric property can reach 30pC/N.

Claims (3)

1. piezoelectric ceramics and pioloform composite materials, it is characterized in that: it comprises piezoelectric ceramics and polyvinyl acetal, the shared volume ratio of each composition is: piezoelectric ceramics 50-90%, polyvinyl acetal 10-50%; Described polyvinyl acetal is a polyvinyl butyral acetal, and described piezoelectric ceramics is lead titanate-zirconate, lead titanate, ternary system piezoelectric ceramics PCM, ternary system piezoelectric ceramics PMS or leadless piezo-electric ceramic K 1-xNa xNbO 3
2. piezoelectric ceramics according to claim 1 and pioloform composite materials is characterized in that: add conducting particles in described piezoelectric ceramics and the polyvinyl acetal, conducting particles accounts for the 0.01-0.5% of piezoelectric ceramics and polyvinyl acetal volume.
3. piezoelectric ceramics according to claim 2 and pioloform composite materials is characterized in that: described conducting particles is carbon black, rare earth alloy powder or metallics.
CNB2005100182087A 2005-01-27 2005-01-27 Piezoelectric ceramic and pioloform composite materials Expired - Fee Related CN1314747C (en)

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US8509164B2 (en) 2007-08-10 2013-08-13 Lg Electronics Inc. Method for re-attempting a random access effectively
US8509167B2 (en) 2007-10-23 2013-08-13 Lg Electronics Inc. Method of effectively transmitting identification information of terminal during the generation of data block
US8594030B2 (en) 2007-08-10 2013-11-26 Lg Electronics Inc. Method for controlling HARQ operation in dynamic radio resource allocation
US8634312B2 (en) 2007-09-18 2014-01-21 Lg Electronics Inc. Effective data block transmission method using header indicator
US8665815B2 (en) 2007-09-18 2014-03-04 Lg Electronics Inc. Method for QoS guarantees in a multilayer structure
US8687565B2 (en) 2007-09-20 2014-04-01 Lg Electronics Inc. Method of effectively transmitting radio resource allocation request in mobile communication system
US8743797B2 (en) 2007-09-13 2014-06-03 Lg Electronics Inc. Method of allocating radio resouces in a wireless communication system
US8862162B2 (en) 2007-06-20 2014-10-14 Lg Electronics Inc. Effective system information reception method

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CN104891867A (en) * 2015-05-18 2015-09-09 哈尔滨工程大学 A composite piezoelectric material prepared from piezoceramic powder, carbon black and asphalt and a preparing method thereof
CN110272620A (en) * 2019-07-08 2019-09-24 武汉理工大学 A kind of flexible piezoelectric film composite material and preparation method thereof
CN110386775B (en) * 2019-08-19 2021-12-17 北京海蓝声学传感技术有限公司 0-3 type piezoelectric composite material with excellent piezoelectric property

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128489A (en) * 1975-12-29 1978-12-05 Mitsubishi Petrochemical Company Limited Piezo-electric material
DE29706921U1 (en) * 1997-04-17 1998-02-26 Innomess Gesellschaft für Messtechnik mbH, 45768 Marl Tool and system for film cutting
CN1392194A (en) * 2002-07-02 2003-01-22 武汉理工大学 Poly meta-fluoroethylene/lead zirconate titanate/terbium dysprosium iron composite material sheet with magnetoelectric property and its preparation
CN1462761A (en) * 2003-05-30 2003-12-24 武汉理工大学 New method for preparing composite material of piezodielectric ceramics/polymer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128489A (en) * 1975-12-29 1978-12-05 Mitsubishi Petrochemical Company Limited Piezo-electric material
DE29706921U1 (en) * 1997-04-17 1998-02-26 Innomess Gesellschaft für Messtechnik mbH, 45768 Marl Tool and system for film cutting
CN1392194A (en) * 2002-07-02 2003-01-22 武汉理工大学 Poly meta-fluoroethylene/lead zirconate titanate/terbium dysprosium iron composite material sheet with magnetoelectric property and its preparation
CN1462761A (en) * 2003-05-30 2003-12-24 武汉理工大学 New method for preparing composite material of piezodielectric ceramics/polymer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8862162B2 (en) 2007-06-20 2014-10-14 Lg Electronics Inc. Effective system information reception method
US8509164B2 (en) 2007-08-10 2013-08-13 Lg Electronics Inc. Method for re-attempting a random access effectively
US8594030B2 (en) 2007-08-10 2013-11-26 Lg Electronics Inc. Method for controlling HARQ operation in dynamic radio resource allocation
US8743797B2 (en) 2007-09-13 2014-06-03 Lg Electronics Inc. Method of allocating radio resouces in a wireless communication system
US8634312B2 (en) 2007-09-18 2014-01-21 Lg Electronics Inc. Effective data block transmission method using header indicator
US8665815B2 (en) 2007-09-18 2014-03-04 Lg Electronics Inc. Method for QoS guarantees in a multilayer structure
US8687565B2 (en) 2007-09-20 2014-04-01 Lg Electronics Inc. Method of effectively transmitting radio resource allocation request in mobile communication system
US8509167B2 (en) 2007-10-23 2013-08-13 Lg Electronics Inc. Method of effectively transmitting identification information of terminal during the generation of data block

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