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JPS5132993

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DESCRIPTION JPS5132993
, 1, the title of the invention
Piezoelectric body and tattoo method thereof
3. Detailed Description of the Invention The present invention relates to a large piezoelectric
material comprising an organic polymer material and an fIa piezoelectric material, and a method
of making the same. As a well-known piezoelectric material, for example, crystals such as quartz
crystals, Rockel's salt, crystals of ammonium hydrogen dihydrogenate, and porcelains such as
barium barium titanium are well known. Among these materials, large piezoelectric materials can
be obtained, but because they are hard and brittle and difficult to process, it is extremely difficult
to obtain a thin-plate piezoelectric material, or some% A of a large-flexible piezoelectric material.
You're a wolf, ft. On the other hand, although large piezoelectric materials are obtained with
organic piezoelectric materials such as polyvinyl chloride, polyamide, polyvinyl chloride + A, 7 k
coal, collagen, polyvinyl fluoride, polyvinyl fluoride, and polyvinyl fluoride, these can be obtained.
The piezoelectric property of is small, and even in the polyvinylidene fluoride having the largest
piezoelectric effect, the piezoelectric constant of length imaging is only 6.87 × 1 r 1−1−. The
present invention eliminates such disadvantages of the conventional 4IAqA8E electric material
and organic piezoelectric material, and is easy to form into a thin plate and has a large
piezoelectric novel EndPage: 11. -For the purpose of obtaining a current collector, the present
invention has been completed by variously examining the material composition and the K-S
method. That is, in the present invention, as the organic polymer substance, Bo, refluorinated
hiniride y resin, and as the inorganic material, tin-tantalum, steep chita y @ zirco / acid lead
porcelain powder! 1! Thus, a piezoelectric body is configured. That is, a polyvinylidene fluoride
resin is dissolved into a solution of Tsuka and a solution of this solution, and the particle size of
the solution is about 1 to 6 μm. ! Add the glazed ceramic powder and uniformly mix in a
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porcelain bowl to make an electrofilm or molded body. At this time, it is necessary to select an
optimum condition at the time of transformation generation depending on the particle size
distribution and particle diameter of the ceramic powder, and depending on the case, the
characteristics of the obtained piezoelectric material are significantly affected. The film or 9
obtained in this way is steamed onto the molded body and is # 1! Apply a pair of electricity by a
method such as 1 and so on, while heating to a predetermined temperature in ク リ ー ー ン 油
油 両 both electrodes 直-directly tR 6-12 kv / i I! After applying a voltage of 1 and holding for a
predetermined time, by cooling in a short time while applying an electric field, the conventional
ringed piezoelectric material is superior to a conventional sounding piezoelectric material, and it
has excellent nine-piezoelectricity and dielectricity. Is obtained. That is, the present invention is a
composite formed product of polyvinylidene fluoride resin and tin y tantalate titanate y acid
zirconate and lead acid porcelain powder which has been formed into a thin plate or thin film
shape, and contains inorganic porcelain powder. A piezoelectric body characterized by applying a
direct current voltage to polarize a compound molded article having a weight fraction of 30 to
86φ at a degree of weight fraction of 105 to 166 ° C and its manufacturing method Kr1A as
well. .
The composite molded product composed of at least polyvinylidene fluoride resin and lead
zirconate titanate powder of tin mental acid titanate is hardly released until it is not oriented and
polarized, but the molded product is provided with a crease 106 to 166 After applying a voltage
of 6 to 1 at a temperature of 60 ° C and applying a voltage of 24 to 1 普, the voltage is applied,
the temperature is cooled to 30 ° C or less within 5 minutes, and the voltage is cut off. It
becomes K to show excellent piezoelectricity, only by closing the crucible. In addition, when the
content of tin tantalum chita y acid di-ruco / 111 m porcelain powder was 30 to 66% by weight
of the total weight, it showed seven piezoelectricity flexibility. If the content of the porcelain
powder is less than the range of the kernel, the piezoelectricity is small and it is buried in
practicality. On the contrary, when the amount of the porcelain powder increases in this category
11, the molding processing of the composite molded article becomes difficult, It is impossible to
obtain a confusing piezoelectric body. The invention will now be described by way of example.
[Example 1] The weight ratio of the same component of lead zirconate titanate tantalate ceramic
powder to the solution of polyvinylidene fluoride resin in 16 weight qbN-N dimer * # A solution
becomes 18: 82, respectively. After uniformly mixing with a ball mill as described above, a sheet
(stretched and dried) was used to form a composite membrane of 164 mesh. This composite
membrane is coated with silver base and dried to form 1 愕, the sample is 1α original KmSL in
silicone oil at 0 °, while “upper and lower electrodes in the dark”. After applying DC voltage
of% //-for 24 hours, apply low temperature silicone oil to oil 1 until voltage is applied, replace by
cooling 30 'for 3 minutes and complete the intervention did. The piezoelectric constant in the
lengthwise direction of the composite piezoelectric film obtained by this method was 29-IXlo121vv. [Example 2] A solution of polyvinylidene fluoride resin in 16 weight-N-N
dimethylformamide solution of tin-tantalum-zirconate titanate zirconate powder is uniformly
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mixed by a ball mill so that the weight ratio of the same components becomes 18: 82
respectively. After being mixed in, let it be dried in a sheet form ## and dry it to a thickness of
91 yard! II & made a membrane. Silver paste is applied to this composite film and dried, and the
electrode is subjected to electrode deposition. The sample is then heated to 166 ° C. in silicone
oil and K10 kV 4 DC voltage is applied between the upper and lower electrodes from the table
for 1 hour. With an applied tt, the temperature of the silicone oil was cooled to 28 ° C. in 6
minutes by rapid replacement with silicone oil at a temperature t-room temperature and low
temperature silicone oil. Then cut off the voltage and finished at a minute. The piezoelectric
constant in the longitudinal direction of the composite piezoelectric film observed by this method
was 21i1.9.times.10@-14 or .chi.
EndPage: 2 dormitory @ The busy one with the composite film of 1 to 164μ was used, but
according to the present invention, the thickness of the film is limited to this range? It is known
that the piezoelectric constant is reduced by about 20% when the cooling is not performed by
replacing the plate-like, corn oil with the turtle which is not Then a minute by @ 1 figure? @
Explain the reasons for limiting temperature. Fig. 1 shows the change in the piezoelectric
constant in the longitudinal direction fyrz when electretization is performed by changing the
degree of polarization a for an i-gold film composed of polyvinylidene fluoride resin, zirco y
tantalate titanate, and lead @@ The component weight ratio is 18:82 for polyvinylidene fluoride
resin: lead zirconate titanate powder of tin tantalate titanate, and the polarization voltage Fi is 6
kV, ah, and the polarization time is 1 hour. As apparent from FIG. 1, '10! The #iittr same sho
piezoelectric constant is shown in the range om 'of S-158 [deg.] C., but any temperature outside
this range is excluded within the scope of the present invention due to the reduction of the
piezoelectric "constant. In the same manner as in 2 ′ ′, the reasons for the 7 limitations will be
explained in terms of polarization voltage and polarization time. 〔5s! Example a) FIG. 2
shows the case where the polarization voltage is changed by changing the polarization wetting I
to 1055 ° C., the time to minute for 1 hour and 11 seconds for the composite film prepared by
the same method as Example 2. As shown in FIG. 2, when the polarization voltage is as low as 4
as shown in FIG. 2, the effect on the improvement of the piezoelectricity is small, and 14 as is
often the case. If the polarization voltage is too low, the sample loses insulation upon
polarization, and a piezoelectric element can not be obtained. For this reason, the polarization
voltage of the present invention is limited to the range of 6 to 12 kV / IIs. EXAMPLE 4 Fringe 3
shows the gI & film prepared by the same method as in Example 1 with a polarization
temperature of 1α ° C., a polarization voltage of 6 and a constant polarization time of 9 in the
nine cases. As is apparent from FIG. 3, which shows a change in the piezoelectric constant, the
piezoelectric constant is small when the polarization time is short for 30 minutes, and an
improvement in the piezoelectric constant is not seen even over a long time over 36 hours. It is
unnecessarily out of the scope of the present invention to waste time and reduce work efficiency.
[Example 6] @ 16 weight 1N-N solution of polyvinylidene fluoride resin in 1N-N solution of
dimethylformamide @zirconium titanate zirco yp lead magnet old age powder mixed with resin:
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resin: weight tr content of magnetic powder The ratio is changed to make a composite @, and this
sample is polarized for 1 hour with a polarization temperature of 130 ° C for 11 minutes and a
voltage of 10 kV 7'1 L, then cooled while applying a voltage for 6 minutes. The results of
measurement of the constants are shown in Fig. 4. The piezoelectric constant and dielectric
constant are clearly shown in Fig. 4. The content of the tin zirconate lead zirconate titanate
ceramic powder is in the range of 30 to 86 weight percent. At the time, the improvement of the
piezoelectric constant and the dielectric constant is remarkable, and when it is less than 30
weight-less, the improvement effect of the piezoelectric constant and the dielectric constant is
small, and when the weight is increased by 86 weight, the porcelain powder to resin Too many,
multiple degrees of composite engraving Processing coma - next, are excluded from the 20 scope
of one invention can not be obtained ° Ru piezoelectric body having a flexibility.
Thus, the conventional * machine can be selected by controlling the conditions of the component
ratio of the complex / substance consisting of polyfluorinated pinylidene peroxidate and tin
zirconate titanate zirconate lead @ $ 5 powder and selecting the condition. It is possible to make
a thin film-like, flexible piezoelectric material which can not be obtained with conventional
quartz, barium titanate magnet 4 or the like, which has a higher ratio of induced IE than the
piezoelectric material. , Is a great pay for 16 worth as a device for sound 9 equipment. 4.
Between the figures, φ is sharp, 1iI Fig. 11 shows the relationship between the piezoelectric
constant and polarization @ of the composite film consisting of polyfluorinated vinilyso 7 town
resin and tin zirconate titanate zirconate porcelain powder. FIG. Fig. 2 shows polyvinylidene
fluoride +! It is a south showing a relationship between the piezoelectric constant and
polarization voltage of a composite film made up of one finger and a field / merite acid titan yy
lead zirconate a powder. Fig. 3 shows polyfluorinated vinilyso / PR fat and pan zirconate titanate
zirconate! It is a figure which shows the relationship of the piezoelectric constant and
polarization time of a composite film which consists of 1 I lead porcelain powder. Fig. 4 is a
shame which shows the relationship between the group containing magnetic B powder and the
piezoelectric weight and dielectric constant of the end layer of the composite layer consisting of
polyfluorinated vini lyso resin and tin tantalate titanate zirconate porcelain powder. is there.
Name of agent Attorney Nakao Toshio et al. 1 name 1 rer 1-n Figure 2 polarization temperature (·
C) + mass voltage d, c ("/ s + s) 3 s, ...,-+ 1 Fig 4 g ! Cleavage (H1) tk road inspection, uncensored
shoulder (% by weight) 7 Inventors and agents other than the above (2) agent address 4
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