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1 、 Name of invention
Piezoelectric body and method of manufacturing the same
3, detailed description of the invention 本本 IP! The present invention relates to an electric field
oriented polarized composite material composed of an organic polymer material and an
inorganic piezoelectric material, and relates to a piezoelectric material having high flexibility and
exhibiting a flexibility, and one manufacturing method thereof. As piezoelectrics that are well
known up to now, there are, for example, crystals such as quartz crystal, Rochelle salt,
ammonium phosphate dihydrate, and porcelains such as paricum titanate. Among these
materials, a large piezoelectric material is obtained, but because it is hard and brittle, it is difficult
to process, it is extremely possible to obtain a thin plate piezoelectric body, a piezoelectric body
having a large flexibility, or a highly flexible Met. On the other hand, although piezoelectrics
having large flexibility can be obtained by organic piezoelectric materials such as polyvinyl
chloride, polyamide, polyvinyl alcohol, collagen, polyvinyl fluoride, polyvinyl fluoride, and
polyvinyl fluoride y, these piezoelectric properties are obtained. The piezoelectric constant is
small, and the piezoelectric constant of the piezoelectric effect is also e, eyxlom / VKts'e. In the
present invention, the conventional inorganic piezoelectric material does not have the following
layer having the organic piezoelectric material, and the forming process of EndPage: 1 to thin
plate is easy and the piezoelectric thick / small elastic plate 7Ii- For the purpose of obtaining a
thick material, the material-silk formation and the method for producing the material are briefly
examined, and the present invention 9 is agreed. That is, in the present invention, a piezoelectric
body is constructed using polyvinylidene fluoride c1 fat as an organic polymer substance and
lead zirconate titanate tin antimonate as an inorganic material. That is, polyfluorinated vini lyso /
resin is dissolved in a lathe to make a lacquer, and this solution is added with tin, antimony,
zirconate titanate lead powder having a diameter of about 1 to 6 μm, powder and added to a
porcelain ball mill. It is necessary to mix uniformly and create a conscience or molding grade,
and at this time, it is necessary to supplement the optimum φ condition at the time of glacial FIv
depending on the particle size distribution and particle diameter of the porcelain powder,
obtained by that φ Striking shadow on the characteristics of the piezoelectric material &! をお
よほす。 The skin II thus obtained! ! In addition, it does not arrive at the body Kg of the
formation body by the method such as painting? A pole is applied, and in silicone oil, it is
necessary to apply a voltage of DC 6 to 12 kV / m and hold it for a predetermined time, then
apply an electric field. By cooling with time K, it is possible to obtain an organic-inorganic hybrid
piezoelectric housing having all of piezoelectricity and electroconductivity superior to
conventional organic piezoelectric materials. That is, the present invention is a pressed composite
form comprising polyvinylidene fluoride resin and lead zirconate titanate tin antimonate powder
molded into a plate-like form, and it is a non-pottery porcelain. Is the powder yield 30 to 86% by
weight or C fraction ?? "composite form ii1; 105 to 168 ° C" "rt flow voltage is applied to make
it $ -7 min?
Failing FF: It relates to the room and child's cloth-making method. The composite molded product
composed of at least the polyfluorinated vinilyso / resin and the zircon / titanium zirconate lead
zirconate porcelain powder is almost equally piezoelectrically non-uniformly divided, and it can
be practically used. However, after applying a t-girder to this molding at a temperature of 106 to
155 "C and applying R11 pressure 6 to 12 kV / W for 24 to 1 'x fij, normal pressure was applied.
It becomes possible to exhibit excellent piezoelectricity only by cooling the voltage to 30 ° C.
below the sphere within 6 minutes to turn off the voltage and ending the polarization. In
addition, when the containing group of the tin antimonate titanate zirconate porcelain powder is
30 to 86 weight% of the total weight, it shows large uniformity ′ ′ piezoelectricity and
elasticity. When the content 1 of the porcelain powder is less than this range, the piezoelectricity
is excellent, and it is excellent in squeakyness. When the amount of the opposite Km porcelain
powder is more than 10, the molding of the composite molded article becomes difficult. You can't
get a good pressure, '%' pressure. [Supplementary Example 1] A solution of polyvinylidene
fluoride 84M · 1 in 15 weight% N-N dimethyl small lumamide solution ← Antimony intoxicated
titanium / lead zirconate porcelain powder with both components / weight fraction 18: After
uniformly mixing with a zeal mill so that it will be 82, e (r! L, let it dry, push the thickness of
162μ-! ;!? Created. The sisters were painted with silver penut directly and dried to make the
electrode 7 fresh. Then apply a DC voltage of 1 cekV / 厘 between the upper and lower
electrodes for 24 hours while heating to a test pH of 2 * 05 ° C in silicone oil, then apply the
voltage to the oil until the temperature of the oil is low. Then, the polarization is terminated by
cooling by 30 "GK in 3 minutes by the following method, and the piezoelectric constant in the
longitudinal direction of the air composite pressure 11 Ifp obtained by this method has a value of
[email protected] m / v. [Example 2] Lead solution of lead zirconate titanate tin oxide in a
solution of polyvinylidene fluoride resin in 16% by weight N-N dimethylformamide and powder
of both components were forced to have a weight ratio of 18: 82 respectively. -Mix evenly with a
round mill, and leave in sheet form and eaves to make a 91-μ complex lung. Apply this applied
mixed VC # paste and dry it to make a π pole 11-cemented 0. Then heat the sample to 166 ° C
in silicone oil and then apply a DC normal pressure of 1 okV / 酎 between the upper and lower
market electrodes. After applying time, 1. With the pressure applied, the temperature of the
silicone oil was cooled to 27 ° C. in 6 minutes by rapid displacement with silicone oil below
room temperature, from which the voltage was cut and the polarization terminated.
Piezoelectric constant EndPage in the longitudinal direction of the composite pressure t-t
obtained by this method: The value is 2 × 28.9 × 10 −12 m / V. In the embodiment, the
composite film having a thickness of 91 to 162μ was used, but in the present invention, the
thickness of the film is not limited to that of this recommended scope, but is one plate and one
rod. Needless to say, it may be said that the silicone oil g at the end of the polarization treatment
in Examples 1 and 2! It has been found that the cooling by the r conversion reduces the
piezoelectric constant by about 20%. Next, the polarization temperature will be explained with
reference to FIG. 1. The polarization temperature of the composite pK made of polyvinylidene
fluoride resin and lead zirconate titanate tin antimonate powder will be explained with reference
to FIG. This component 11 shows the change of the piezoelectric constant in the longitudinal
direction when the electretizing force is applied, and this component 11 櫂 ratio is polyvinylidene
fluoride resin: tin antimonate titanite / zirconate lead zirconate, and the powder is 18: 82 The
polarization voltage is eskV / a, and the polarization time is one hour. As is apparent from FIG. 1,
although the piezoelectric constant is substantially the same at temperatures in the range of
10δ to 16δ ° C., the temperatures outside this range all decrease the 8-'11 constant. It is
excluded from the range of Similarly, the reasons for limitation of the polarization voltage and
the polarization time will be described. [Example 3] FIG. 2 shows the piezoelectricity in the case
of changing the polarization voltage by changing the polarization voltage at a constant pressure
of 10 δ ° C. for 1 minute and 1 hour for a composite # made by the same method as in
Example 2. The polarization voltage is lower than akV / m, as shown in FIG. 2, which shows a
change in the constant. The effect on the improvement of the piezoelectricity is small, and the
polarization voltage is less than 14 kv / M. Thus, it is possible to obtain an element with Fftjl
characteristics, and the polarization voltage of the present invention is therefore limited to
around 6 to 12 kV / IlhOilj. [Example 4] FIG. 3 shows the piezoelectric constant in the
longitudinal direction when the dispensing time is obtained with the polarization temperature of
1 fr 105 ° C. and the polarization voltage of 1 keskv / 鰐 fixed for the composite film prepared
by the same method as in Example 1. As shown in FIG. 3, the polarization time is more than 30
minutes, the piezoelectric constant is smaller, and the piezoelectric constant does not improve
even if it exceeds 36 hours. Time 'lr is wasted and is excluded from the scope of the present
invention to reduce the mains. [Example 6] 16% by weight of polyvinylidene fluoride resin N-N
dimethylformamide FiWjK tin antimonate titanate zirconate titanate powder by a ball mill
method Resin: weight percentage of porcelain powder '?
Create a composite membrane by changing tS, and dispense this sample! The results are shown
in FIG. 4 and FIG. 4 showing the results of measurement of the piezoelectric constant of the
piezoelectric body prepared by the method of applying a voltage of 1 kV and a voltage of 10 kV /
m + for 1 hour and then cooling while applying a voltage of 1 for 6 minutes. . It is obvious that
KEJ: l constant and milking rate are significantly improved in piezoelectric constant and N
penetration when the content of tin antimonate lead zirconate titanate powder is in the range of
30 to 86% by weight. When the amount is less than 50% by weight, K is the improvement of the
piezoelectric constant and the dielectric constant-the effect is small (e, when the amount is more
than 85% by weight, the porcelain powder is more to the resin, the molding of the composite
molding It is excluded from the scope of the present invention because it becomes difficult and it
is impossible to obtain a piezoelectric body having a inertia. Thus, the composition ratio of
polyvinylidene fluoride resin and tin antimonate titanate zirconate porcelain powder is selected
by the ratio of its components and the condition at the time of polarization, and is obtained by
controlled barium porcelain power, and it is 11 ' The flexible pressure can make a rumor, and it
is k on the large side slope of the r value sensor as a sound device one-piece weight element. 4.
KP * fx description in the drawing Fig. 1 shows the difference between the piezoelectric constant
and the dispensing temperature of the composite film consisting of polyfluorinated vinilyso / #
fat and pigeon anti □ lead zirconate titanate powder or C-Billed composite film The security
indication V is displayed. FIG. 2 is a diagram showing the coexistence of the piezoelectric
constant and the polarization voltage of a composite film made of polyvinylidene fluoride resin
and lead zirconate titanate ceramic powder. Fig. 3 shows the relationship between the
piezoelectric constant and polarization time of the complex group consisting of polyvinylidene
fluoride resin and lead zirconate titanate antimonate ceramic powder, and Fig. 4 is a
polyfluorinated resin. It is a figure which shows the content rate of the ceramic powder of the tobe-joined film, and the relationship of a piezoelectric constant, and dielectric constant which are
made from a vinylidene fluoride resin and a tin EndPage: 3 * lead zirconate titanate ceramic
powder. Name of agent Attorney Nakao Toshio and others 1 person polarization reversion (° C)
Fig. 2 Fig. 2 i electric FL (%) 3rd! ,. . Fig. 4 Polarization Ck) 7 Inventors and agents other than the
above and agents (2) agent EndPage: 4
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