JPH05310993A - Rubber and/or plastic molded product having excellent vibration-damping property and thermal conductivity - Google Patents

Abstract

PURPOSE:To obtain the subject molded product consisting of a composition in which a polymer composed of a rubber and a plastics is blended with specific two kinds of fillers, excellent in vibration-damping property and thermal conductivity and capable of preventing vibration without hindering a heat generating vibrator from releasing heat. CONSTITUTION:The objective molded product is obtained by blending (A) a polymer consisting essentially of a rubber and/or plastics with (B) metallic fine powder (preferably gold, copper, Al, etc.), (C) filler (e.g. aluminum oxide or boron nitride) selected from a metal oxide, a metal nitride and a filler containing either one thereof and (D) a filler selected from a crystalline silica, silicon carbide, silicon oxide and a filler containing either one thereof and then molding the blend. This molded product has >=2X10<2>etakg/cm<2> loss modulus and >=0.4kcal/m.h. deg.C thermal conductivity. As the component A, blend of nitrile rubber and PVC is preferably used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used internally in a cover case of a vibrating body such as a gear pump, a compressor, an air conditioner receiver, a motor retractor, etc. The present invention relates to a rubber and / or plastic molded product which can be used to fill a gap between the two when fixing a body to a cover case and which can suppress vibration and has excellent thermal conductivity.

[0002]

2. Description of the Related Art Conventionally, heat generation and vibration of a heat generating vibrating body such as a gear pump, a compressor, an air conditioner receiver and a motor attached to various electric products have always been a problem. Therefore, in the related art, in order to prevent vibration, for example, in a motor or the like, a method is used in which a motor case is wrapped from the outside with a soft felt-like material, and further wrapped with a lead or a rubber or plastic sheet having a large specific gravity. ..

[0003]

However, regarding the method of wrapping the above-mentioned case from the outside with a soft felt-like material and further wrapping it with a sheet of lead or a large specific gravity, the following problems are encountered during construction. Have

At the time of construction, a soft felt-like material must be surely adhered to the case, and this adhering work is difficult and the workability is not good.

Since the entire case is wrapped at the time of construction, the felt and the sheet having a large specific gravity have a large capacity, and the material is expensive.

After construction, these heat-generating vibrating bodies are often used outdoors, and are exposed to wind and rain in a relatively short time, and felt, lead, or a sheet with a large specific gravity ages,
Damage and peeling easily occur, so the vibration isolation performance is lost, and as a result, it becomes impossible to prevent the vibration of the heat-generating vibrating body.
It doesn't hold well. Further, due to the above-mentioned causes, the number of times the work needs to be redone is increased, which causes an economic problem such as an increase in construction cost.

In addition, as another big problem, the method of wrapping the case with a felt-like soft material and further wrapping it with a sheet of lead or a large specific gravity can hardly expect a heat dissipation effect, but rather keeps heat. As a result, it becomes necessary to provide the heat-generating vibrating body with heat resistance or to increase the blower capacity in a motor, etc., resulting in the heat-generating vibrating body itself being expensive and having a large capacity. There is.

The present invention has been made to solve the above problems, and an object thereof is to obtain a rubber and / or plastic molded product capable of preventing vibration without hindering the heat radiation of the heat-generating vibrating body.

[0009]

DISCLOSURE OF THE INVENTION The present invention relates to a group consisting of a polymer mainly composed of rubber and / or plastic and fine metal powder, (a) a metal oxide, a metal nitride and a filler containing any of these. Blending at least one filler selected from the group (b) at least one filler selected from the group consisting of crystalline silica, silicon carbide, silicon oxide and a filler containing any of these, When the loss elastic modulus is 2 × 10 ² ηKg / cm ² or more, the thermal conductivity is 0.
4 Kcal / m. h. The above problem is solved by obtaining a molded product having a composition of not lower than ° C and molded into a desired shape.

[0010]

In the present invention, for example, by filling the gap between the heat-generating vibrating body case and the heat-generating vibrating body fixed thereto and using it, the necessary heat radiation from the vibrating body case is not hindered and the vibration from the vibrating body is prevented. It also has the function of preventing vibration.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 exemplify the shape of a rubber and / or plastic molded product having vibration damping properties and thermal conductivity of the present invention when molded into a block shape (FIG. 1), a sheet or tape shape (FIG. 2). 1 is a perspective view showing a polymer 2 mainly composed of rubber and / or plastic, a metal fine powder 3 and a thermal conductivity of 0.5 Kcal / m. h. At least one filler selected from the group consisting of (a) metal oxides, metal nitrides, and fillers containing any of the above, and (b) crystalline silica, silicon carbide, silicon oxide or At least one filler selected from the group consisting of fillers containing any of these is uniformly mixed and dispersed, and if necessary, a vulcanizing agent is mixed to obtain an unvulcanized, The rubber and / or plastic molded product 1 has desired vibration damping performance and thermal conductivity in a semi-vulcanized or vulcanized state.

FIGS. 3 and 4 show a rubber and / or rubber having vibration damping properties and heat conductivity of the present invention molded into a sheet or tape form.
Another example of a plastic molded product (FIG. 2) is two molded products 1 cut into desired widths and lengths when used.
FIG. 5 is a cross-sectional view of a laminated molded product (FIG. 3) in which a metal band 5 is internally provided between the metal band 5 and a laminated molded product (FIG. 4) arranged on one surface of one molded product 1.

FIGS. 5 to 11 are cross-sectional views showing a laminated molded article as an example of the present invention in which the pressure-sensitive adhesive layer 6 is provided on both sides or one side of FIGS. 2 to 4.

FIG. 12 is a partially cutaway perspective view showing an embodiment in which the retractor 8 incorporated in the outdoor unit 7 is filled between the bottom plate 7a and the retractor 8 when the retractor 8 is fixed to the outdoor unit bottom plate 7a. Incidentally, 7b in the figure is a heat dissipation hole provided in the bottom plate 7a.

FIG. 13 is a partially cutaway perspective view showing an embodiment in which the sheet or tape-shaped molded article 1 (FIG. 2) of the present invention is appropriately cut and attached to the existing motor cover and set with the cover 9. Is.

14 to 20 are perspective views showing another example of the molded shape of the present invention.

The rubber as the polymer 2 used in the rubber and / or plastic molding 1 having the vibration damping property and the thermal conductivity of the present invention is, for example, natural rubber, isoprene rubber, butadiene rubber, butyl rubber, nitrile rubber, acrylic rubber. , Chloroprene rubber, ethylene-propylene rubber, silicone rubber, polyisobutylene, butadiene-
Styrene rubber, polysulfide rubber, norbornene rubber, urethane rubber, styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer, chlorinated polyethylene and the like, and examples of plastic include polyethylene resin, polystyrene resin, polyvinyl chloride resin. , Polypropylene resin, polyester resin, urethane resin, ABS resin, and the like. Further, as a blend of rubber and plastic, for example, nitrile rubber, butyl rubber, chloroprene rubber, a blend of ethylene propylene rubber and polyethylene resin, or a blend of nitrile rubber and polyvinyl chloride. Blends are preferably used.

In addition, a filler selected from the group consisting of (a) a metal oxide, a metal nitride, and a filler containing any of these in the filler 4 having thermal conductivity added to the base polymer. Examples of the agent include aluminum oxide, zinc oxide, iron oxide, lead oxide, magnesium oxide, aluminum nitride, boron nitride, magnesium nitride, and (b) crystalline silica, silicon carbide, silicon oxide and any of these. Examples of the filler selected from the group consisting of fillers include crystalline silica, silicon carbide,
Examples include silicon oxide, calcium carbonate, clay, talc, magnesium carbonate, and white carbon. These fillers have a thermal conductivity of 0.5 Kcal / m. h. Those having a thermal conductivity of ℃ or more are suitable. Further, both have a compounding ratio of 3: so that the molded product 1 has a desired thermal conductivity.
It is preferable to blend in the range of 7 to 7: 3.

Further, if necessary, other additives such as liquid rubber, softening agent for process oil, tackifier such as rosin, petroleum resin, pigment, vulcanization accelerator, vulcanizing agent, antiaging agent, etc. Selected and used.

Further, as the fine metal powder 3 to be mixed and dispersed in the base polymer together with the above-mentioned filler 4, for example, gold, silver, copper, lead, aluminum, manganese, nickel, chromium, zinc or a silicon alloy thereof is suitable. Is.

Further, as shown in FIGS. 3 and 4, the metal strip 5 used in the case of a molded product having a sheet or tape shape in which the metal strip 5 is embedded or provided on one side is, for example, aluminum, copper, iron or the like. A plate, sheet, or film is used.

Further, the pressure-sensitive adhesive used for forming the pressure-sensitive adhesive layer 6 used in the molded article 1 exemplified in FIGS. 5 to 11 may be any of hot melt type, solvent type and water type. The layer 6 has a thickness of 10
It is necessary that the thickness is in the range of μ to 100 μ, that is, a thickness that does not hinder the damping effect of the molded product 1. 5 to 1
1 illustrates only the case where the pressure-sensitive adhesive layer 6 is provided on the sheet or tape-shaped molded product (FIG. 2),
Even in a molded product having another shape, for example, a block shape, the pressure-sensitive adhesive layer 6 can be partially or entirely provided on the surface or the inner surface thereof.

Next, the filler 4 and the fine metal powder 3 in the molded product 1 which has an extremely important function in the present invention.
Will be described in detail. That is, it has already been clarified by the present inventors that a sheet having vibration damping properties that is soft and has a high specific gravity can be obtained by adding the metal fine powder 3 to the elastic polymer 2 of rubber and / or plastic. (Japanese Patent Publication No. 60-25232, Jitsukaihei 3
-99247 publication). However, the rubber of this invention and /
Alternatively, the plastic molded product 1 needs to have thermal conductivity in addition to damping properties. For thermal conductivity, for example, as shown in the embodiment of FIG. 12, the heat generated by the heat generating body such as the retractor (resistor) is stored between the bottom plate 7a of the outdoor unit 7 and the retractor (resistor) 8. Without doing so, it is necessary to smoothly radiate heat from the heat dissipation holes 7b attached to the bottom plate 7a of the outdoor unit 7. And, this effect is difficult to sufficiently satisfy the required quality from the viewpoints of product workability, retention of physical properties, etc., by adding only the metal fine powder 3.

As a result of earnest research on this point, the present inventors have found that the thermal conductivity of the base polymer can be improved by blending the fine metal powder 3 with a metal oxide or an inorganic filler containing a metal oxide. I found this (Japanese Utility Model Publication No. 3-99247). However, in the subsequent research, the inventors replaced the metal oxide or the filler containing the metal oxide added together with the metal fine powder 3 with metal nitride or crystalline silica, silicon oxide, silicon carbide or the filler containing these. It was found that the same or slightly higher thermal conductivity effect can be obtained. Furthermore, the inventors have found that (a) at least one filler selected from the group consisting of metal oxides, metal nitrides and fillers containing any of these, and (b) crystalline silica, silicon oxide, carbonized By adding together with the fine metal powder 3 together with at least one filler selected from the group consisting of silicon and fillers containing any of these, better thermal conductivity than the former two is obtained. The inventors have found out what to obtain and have reached the present invention.

For example, the polymer 2 mainly composed of rubber and / or plastic has a thermal conductivity of 0.5 Kcal.
/ M. h. At least one filler selected from the group consisting of (a) metal oxides, metal nitrides, and fillers containing any of the above, and (b) crystalline silica, silicon carbide, A filler 4 selected from at least one filler selected from the group consisting of silicon oxide and fillers containing any of these is uniformly mixed and dispersed using a Banbury, a kneader, an open roll or the like. Then, or at the same time, metal fine powder 3 capable of imparting vibration damping property and thermal conductivity is gradually added and blended, and then the obtained blend is formed into a desired shape by using an extruder, a calender, a press or the like. By molding and cutting if necessary, the thermal conductivity is 0.4 Kcal / m. h. The present invention has been achieved by succeeding in obtaining a molded product satisfying the required quality of not less than 0 ° C. and the loss elastic modulus of not less than 2 × 10 ² ηKg / cm ² .

Further, in order to obtain sufficient vibration damping properties mainly for the intended use of the present invention, it is particularly preferable that the soft molded product 1 has a high specific gravity of 1.8 or more. Also, in order to have thermal conductivity, it is necessary to first modify the poor thermal conductivity of the polymer used, and for this purpose it has several times the thermal conductivity of the polymer used, Moreover, it is necessary to add a compounding agent which has good compatibility with the polymer and can be uniformly dispersed in the polymer. Further, in terms of quantity, a compounding agent that cannot obtain a vibration damping effect unless it is added in a large amount that impairs the elastic properties of the polymer is not preferable.

From this point of view, the inventors repeated trial and error by experiments, and as a result, the poor thermal conductivity of the polymer can be modified, the damping property can be imparted, and the desired shape can be easily formed in processing. Has a thermal conductivity of 0.5 Kcal / m.m. As a polymer thermal conductivity modifier. h. Having a thermal conductivity of ℃ or more, the average particle size is 0.01μ ~ 30
at least one filler selected from the group consisting of μ (a) metal oxides, metal nitrides, and fillers containing any of these; and (b) crystalline silica, silicon carbide, silicon oxide, and It is preferable to use in combination with at least one filler selected from the group consisting of fillers containing any of these, and by adding fine metal powder to this mixture, it is flexible and has a specific gravity of 1 It was found that a molded product 1 having a desired specific heat conductivity and vibration damping property of high specific gravity of 0.8 or more can be obtained. The total amount of the filler added is 5 parts with respect to 100 parts by weight of rubber and / or plastic.
The range of 0 to 200 parts by weight is desirable, and the compounding ratio of both fillers is suitably in the range of 7: 3 to 3: 7. This is because when the amount is less than 50 parts by weight, the poor thermal conductivity of the polymer cannot be modified, and when the amount is more than 200 parts by weight, the elastic properties of the polymer cannot be maintained due to the addition of fine metal powder, and the composition is processed during molding. Because it makes sex difficult. Further, it is difficult to obtain the synergistic effect of both fillers when the compounding ratio exceeds the range of 7: 3 to 3: 7. A filler having an average particle size of less than 0.01 μ is too light in apparent specific gravity and is difficult to mix with a polymer, and a filler having an average particle size of more than 30 μ significantly impairs the reinforcing effect of the polymer. It is not preferable.

On the other hand, the amount of the fine metal powder added is 100 to 4 with respect to 100 parts by weight of rubber and / or plastic in the case of a compound containing 50 to 200 parts by weight of a filler.
00 parts by weight is preferred. This is because if the amount is 100 parts by weight or less, the specific gravity of the obtained compound is too light to obtain the desired vibration damping property, and if it is 500 parts by weight or more, the desired physical properties cannot be maintained due to the high filling number. For particle size, 1
If it is less than 00 mesh, the average particle size becomes too large and the compatibility and dispersion with the polymer are poor and unsuitable, and the average particle size is relatively small and the compatibility and dispersion with the compound are good, and 100 mesh or more is suitable. is there. On the other hand, as the vibration damping property and the thermal conductivity suitable for the present application, as a vibration damping property, the loss elastic modulus is 2 × 10 ² ηKg / cm ² or more and the thermal conductivity is 0.4 Kcal / m. h. It was found to be ° C. That is, a molded product having a loss elastic modulus of 2 × 10 ² ηKg / cm ² or less has insufficient vibration damping property in use.
0.4 Kcal / m. h. With a thermal conductivity of ℃ or less, for example, in the case shown in FIG. 12, the bottom plate 7 of the outdoor unit 7
It is not suitable because it is not possible to quickly release heat from the heat dissipation hole 7b provided in a, and the heat retention effect of the molded product 1 results in an increase in the internal temperature of the outdoor unit, that is, the heat generation vibrating body case 7. ..

More specifically, the sheet-shaped molded article as another example of the present invention shown in FIGS. 3 and 4 has a structure in which the metal strip 5 is incorporated or has one side, and therefore the metal strip 5 is formed.
In addition to the good thermal conductivity of the sheet, the effect of the thermal conductivity of the sheet or tape-shaped molded article is further enhanced.

Further, in another vibration-damping heat-conductive sheet-like molded article of the present invention shown in FIGS. 5 to 11, since the pressure-sensitive adhesive layer 6 is applied to one side or both sides thereof, the bottom plate 7a or the retractor 8 is provided. Alternatively, the close contact with both of them is good, and it is more effective to prevent the vibration resonance of the case due to the vibration from the vibrating body 8 such as the retractor.

Experimental example. To 100 parts by weight of nitrile rubber, 30 parts by weight of crystalline silica having an average particle size of 10 μm and 30 parts by weight of aluminum oxide having an average particle size of 10 μm were uniformly mixed and dispersed in a Banbury, and 350 parts by weight of 100 mesh iron powder was added. The mixture was gradually added with a kneader and uniformly mixed and dispersed to obtain an NBR compound. Then, this composition was sheeted with an open lawn to about 5 mm, and the obtained sheets were overlapped and pressed to form a block-shaped molded article (Experimental Example 1) having a thickness of 15 mm, a length of 75 mm and a width of 50 mm as shown in FIG. Obtained. Also, the NBR compound obtained in the same manner was prepared to a thickness of 2.
A sheet-shaped molded product that is sheeted with a calendar at 0 mm is cut into a length of 75 mm and a width of 50 mm, and then laminated on both sides of an aluminum plate (thickness: 11 mm, length: 75 mm, width: 50 mm) and laminated molding as shown in FIG. (Experimental example 2) was obtained. Further, 50 μm of a solvent-type acrylic adhesive was applied to both sides (front and back) of the block-shaped molded product of Experimental Example 1 to obtain a molded product with glue as shown in FIG. 5 (Experimental Example 3). For these molded products, the thermal conductivity was measured, and these molded products were made into two iron plates (SPCC steel plate thickness 0.8 mm).
When scissors were used to measure the loss elastic modulus, the results shown in Table 1 were obtained. For reference, when metal oxide, iron powder crystalline silica, and iron powder were mixed in the same amount as in Experimental Example 1 and prepared in the same manner as in Experimental Example 3 (Reference 1) (Reference 2), pure rubber composition (filler) Also, the measurement results of loss elastic modulus (reference 4) when using a vulcanized sheet (reference material 3) that does not include iron powder) (reference 3) and when iron plates are simply stacked without sandwiching the molded product are also shown. Shown in 1.

[0032]

[Table 1]

As is clear from Table 1, it was confirmed that the molded product of the present invention had an excellent vibration damping effect and good thermal conductivity.

[0034]

As described above, the rubber- and / or plastic-molded product having the vibration damping property and the thermal conductivity of the present invention comprises a polymer having rubber and / or plastic as a main component and a thermally conductive filler. It is a molded product in which fine metal powders are uniformly mixed, and because it has excellent vibration damping and thermal conductivity, the entire case of the conventional vibration heating element is wrapped with a soft felt-like material, and lead or specific gravity is applied over it. In comparison with the method of wrapping with a large sheet or the like, the following excellent effects are exhibited. At the time of construction, when fixing the vibration heating element in the cover case to, for example, the bottom plate of the case, the work is completed by a simple work of filling a molding between the bottom plate and the vibration heating element, and the conventional method of covering the entire cover case is completed. The workability is dramatically improved compared to. In addition, since it is only necessary to use a molded product in the cover case, the cover case has a small capacity, material can be saved, and there is a great merit that it does not occupy a place for installation. After construction, the heat-generating vibrating body is often used outdoors, but even if it is exposed to wind and rain, the molded product of the present invention is filled in the cover case, so it does not age and crack or settle. Since the heat radiation effect can be maintained without accumulating heat from the heat generating body, the life of the heat generating vibration body is extended. Further, due to the above-mentioned cause, it is not necessary to redo the work, the construction cost is extremely low, and it is economically improved. In addition, with respect to the heat generated from the heat-generating body, which is another problem, the conventional method hardly expected a heat-dissipating effect, and rather resulted in heat retention. Since it is a good molded product, quick heat dissipation to the outside of the case can be realized through the heat dissipation holes. The molded product of the present invention also has a soundproof effect as an additional effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a block-shaped molded product showing an embodiment of the present invention.

FIG. 2 is a perspective view of a sheet or tape-shaped molded product showing one embodiment of the present invention.

FIG. 3 is a cross-sectional view showing what is shown in FIG. 2 in which a metal band is incorporated.

FIG. 4 is a cross-sectional view showing the one shown in FIG. 2 provided with a metal strip on one surface.

FIG. 5 is a cross-sectional view showing the one of FIG. 2 provided with an adhesive layer on one surface.

FIG. 6 is a cross-sectional view showing what is shown in FIG. 2 provided with an adhesive layer on both sides.

FIG. 7 is a cross-sectional view showing what is shown in FIG. 3 with an adhesive layer provided on one surface.

FIG. 8 is a cross-sectional view showing what is shown in FIG. 3 provided with an adhesive layer on both sides.

FIG. 9 is a cross-sectional view showing the one of FIG. 4 provided with an adhesive layer on one surface.

FIG. 10 is a cross-sectional view showing what is shown in FIG. 4 provided with an adhesive layer on both sides.

FIG. 11 is a cross-sectional view showing a pressure-sensitive adhesive layer provided on one surface opposite to that of FIG.

12 is a diagram showing an example in which the block-shaped molded product of FIG. 1 is applied to an outdoor unit.

FIG. 13 is a view showing a state where the sheet or tape-shaped molded product of FIG. 2 is applied to an existing motor cover.

FIG. 14 is a perspective view of a block-shaped molded product showing another embodiment of the present invention.

FIG. 15 is a perspective view of a block-shaped molded product showing another embodiment of the present invention.

FIG. 16 is a perspective view of a block-shaped molded product showing another embodiment of the present invention.

FIG. 17 is a perspective view of a tubular molded product showing another embodiment of the present invention.

FIG. 18 is a perspective view of a sheet-shaped molded product showing another embodiment of the present invention.

FIG. 19 is a perspective view of a sheet-shaped molded product showing another embodiment of the present invention.

FIG. 20 is a perspective view of a sheet-shaped molded product showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Molded product 2 Polymer 3 Metal fine powder 4 Filler 5 Metal band 6 Adhesive layer 7 Outdoor unit 7a Bottom plate of outdoor unit 7b Radiating hole provided in the bottom plate of outdoor unit 8 Retractor 9 built into the outdoor unit 9 Motor cover

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C08L 21/00 KCS 8218-4J 101/00 F16F 15/02 Q 9138-3J

Claims (8)

[Claims] 1. At least one selected from the group consisting of fine particles of metal and (a) a metal oxide, a metal nitride, and a filler containing any of these in a polymer mainly composed of rubber and / or plastic. Molded by blending one kind of filler with (b) at least one kind of filler selected from the group consisting of crystalline silica, silicon carbide, silicon oxide and a filler containing any of these. Which has a loss elastic modulus of 2 × 10 ² ηKg / cm ² or more and a thermal conductivity of 0.4 Kcal / m. h. A rubber and / or plastic molded product having a vibration damping property and a thermal conductivity, which is characterized by having a vibration damping property and a thermal conductivity of ℃ or more. 2. The filler mixed with the fine metal powder has a thermal conductivity of 0.5 Kcal / m. h. A rubber and / or plastic molded product having vibration damping properties and heat conductivity according to claim 1, which is a filler having a heat conductivity of ℃ or more. 3. The amount of the filler having thermal conductivity mixed with the fine metal powder is 50 to 200 parts by weight based on 100 parts by weight of rubber and / or plastic. A rubber and / or plastic molded product having a vibration damping property and a thermal conductivity of 1 or 2. 4. At least one filler selected from the group consisting of (a) metal oxides, metal nitrides, and fillers containing any of these, and (b) crystalline silica.
The compounding ratio of at least one filler selected from the group consisting of silicon carbide, silicon oxide and fillers containing any of these is in the range of 7: 3 to 3: 7. A rubber and / or plastic molded product having vibration damping properties and thermal conductivity according to any one of items 1 to 3. 5. A fine metal powder mixed with a filler having thermal conductivity is a fine metal powder having a particle size of 100 mesh or more, and the mixing amount thereof is 100 parts by weight of rubber and / or plastic. The rubber and / or plastic molded product according to any one of claims 1 to 4, which has 100 to 400 parts by weight, having vibration damping properties and thermal conductivity. 6. A rubber and / or plastic molded product having a vibration damping property and a thermal conductivity according to any one of claims 1 to 5, which has a specific gravity of 1.8 or more. 7. A rubber having vibration damping properties and thermal conductivity according to claim 1, wherein a pressure-sensitive adhesive layer is provided on both surfaces or one or more surfaces of the molded product. Plastic molding. 8. The molded product according to claim 1, wherein the molded product is a sheet-shaped or tape-shaped molded product and is a laminated molded product in which a metal band is incorporated or arranged on one side. A rubber and / or plastic molded product having vibration and thermal conductivity.