JPWO2015087415A1 - Manufacturing method of resin composite material - Google Patents

Abstract

In the technology of dispersing fillers in synthetic resin using a liquid medium, the present invention provides a technology for producing a resin composite material that improves production efficiency, reduces energy consumption, and reduces environmental impact. The resin composite material manufacturing apparatus 10 includes a hopper 11 for introducing a synthetic resin and a filler, an introduction unit 12 for introducing high-pressure steam into the synthetic resin and the filler, a condensate (liquid medium) of high-pressure steam, a synthetic resin, A kneading unit 13 for kneading the filler at a set temperature, a discharge unit 14 for discharging the condensate contained in the kneaded product at a pressure lower than the saturated vapor pressure at the kneading temperature, and taking out the kneaded product from which the condensate has been discharged. Part 15.

Description

  The present invention relates to a technique for producing a resin composite material in which a filler is dispersed in a synthetic resin.

Development of a resin composite material that reduces the amount of synthetic resin produced from fossil resources and develops new functions by dispersing fillers in a synthetic resin and combining them is underway.
As a technique for forming a dispersed phase of the filler finely and uniformly with respect to the matrix phase of the synthetic resin, water (liquid medium) is added to the synthetic resin and the filler, and the mixture is kneaded at a temperature equal to or higher than the melting temperature of the synthetic resin. A technique for producing a composite material by releasing to the atmosphere and vaporizing and dehydrating is disclosed (for example, Patent Document 1).

Japanese Patent No. 4660528

However, in the disclosed technique of Patent Document 1, it has been a problem that it is not appropriate from the viewpoint of production efficiency to knead a liquid medium having a large heat capacity while raising the temperature from room temperature to the melting temperature of the synthetic resin or higher.
In addition, a large amount of heat of vaporization is lost when the liquid medium contained in the kneaded product is vaporized and discharged, and there is a problem that is not appropriate from the viewpoint of energy saving.
In addition, there was a problem to be examined regarding the method for treating the discharged liquid medium.

  The present invention has been made in view of such circumstances, and in a technique for dispersing a filler in a synthetic resin using a liquid medium, the production efficiency is improved, energy consumption is reduced, and the environmental load is reduced. It aims at providing the manufacturing technique of a resin composite material.

  In the apparatus for producing a resin composite material according to the present invention, a hopper for introducing a synthetic resin and a filler, an introduction part for introducing high-pressure steam into the synthetic resin and the filler, a condensate of the high-pressure steam, and the synthetic resin And a kneading part for kneading the filler at a set temperature, a discharging part for discharging the condensate contained in the kneaded material at a pressure lower than a saturated vapor pressure at the kneading temperature, and the kneaded material from which the condensate has been discharged. And a take-out part for taking out the product.

  According to the present invention, there is provided a technique for producing a resin composite material in which a filler is dispersed in a synthetic resin by using a liquid medium, and production efficiency is improved, energy consumption is reduced, and environmental load is reduced.

Sectional drawing which shows 1st Embodiment of the manufacturing apparatus of the resin composite material which concerns on this invention. The state figure of the water used as a liquid medium thrown in in each embodiment. Sectional drawing which shows 2nd Embodiment of the manufacturing apparatus of the resin composite material which concerns on this invention. Sectional drawing which shows 3rd Embodiment of the manufacturing apparatus of the resin composite material which concerns on this invention. (A) (B) Sectional drawing which shows 4th Embodiment of the manufacturing apparatus of the resin composite material which concerns on this invention. (A) (B) Sectional drawing which shows 4th Embodiment of the manufacturing apparatus of the resin composite material which concerns on this invention. The flowchart explaining operation | movement of the manufacturing apparatus of the resin composite material which concerns on 4th Embodiment. Sectional drawing which shows 5th Embodiment of the manufacturing apparatus of the resin composite material which concerns on this invention.

(First embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the resin composite material manufacturing apparatus 10 according to the first embodiment includes a hopper 11 for introducing a synthetic resin and a filler, an introduction unit 12 for introducing high-pressure steam into the synthetic resin and the filler, and a high pressure A kneading section 13 for kneading vapor condensate (liquid medium), synthetic resin and filler at a set temperature; and a discharge section 14 for discharging the condensate contained in the kneaded product at a pressure lower than the saturated vapor pressure at the kneading temperature; And a take-out part 15 for taking out the kneaded material from which the condensate has been discharged.

  And the kneading part 13 in 1st Embodiment is the cylinder 21 in which the hopper 11, the introducing | transducing part 12, the discharge | emission part 14, and the taking-out part 15 are provided in order toward the downstream from the upstream, and inside this cylinder 21 And a screw 22 for rotating the shaft and continuously extruding the kneaded material from the upstream side toward the downstream side.

A synthetic resin container 23 a and a filler container 23 b are provided on the top of the hopper 11.
These accommodating containers 23 (23a, 23b) supply the synthetic resin and the filler to the hopper 11 so that a predetermined blending ratio is obtained. Note that the synthetic resin and the filler may be uniformly mixed before being supplied to the hopper 11.

  Synthetic resins form the matrix phase of resin composite materials, and are thermoplastic resins that melt by heating, thermosetting resins that cure by heating, and photocuring that cures by irradiation with electron beams or ultraviolet rays. Any of resins and the like can be adopted, and those that can be fluidized at a predetermined temperature are applied, and those that are liquid at room temperature can also be applied.

  Thermoplastic resins include low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene-ethyl acrylate copolymer Polyolefin resins such as coalesced (EEA) are suitable.

In addition, without limitation, polycarbonate resin (PC), polyethylene terephthalate resin (PET), acrylic / butylene / styrene (ABS), polyvinyl chloride (PVC), polystyrene (PS), polyamide (PA), etc. Any material can be used without particular limitation as long as it has the property of being heat-flowable by heating and can generally be extruded.
Furthermore, these thermoplastic resins may be used as a mixture of two or more.
Also, recycled products of these thermoplastic resins can be used.

As the filler, fine particles or fibers having a size of 100 μm or less can be used while maintaining a solid without melting at the kneading temperature.
Examples of the filler include porous materials such as clinker ash generated in a coal-fired power plant and pulverized products such as wood carbide. Since these porous bodies do not leave a liquid medium in the voids and have good interfacial adhesion with the synthetic resin, a lightweight and high-strength composite material can be obtained.

As the filler, a lamellar viscous mineral separated from a single layer or a microfibrillated cellulose fiber may be employed. These materials are attracting attention as raw materials for nanocomposites, but it has been considered difficult to put them into practical use due to re-aggregation when making composite materials.
However, in the present embodiment, since the liquid medium is collected in the fine particles of the filler during kneading and reaggregation is suppressed, a resin composite material in which the filler is finely and uniformly dispersed can be obtained.
In addition, these layered viscosity minerals may be thrown into the kneading part 13 in a state of being separated and dispersed in a liquid medium. Similarly, cellulose fibers may be put into the kneading unit 13 in a state of being microfibrillated and dispersed in a liquid medium.

Further, as the filler, fine particles or metal particles mainly composed of carbon such as carbon black can be employed.
The composite material in which the fine particles are dispersed exhibits characteristics such that the fine particles are preferentially arranged on the surface at the time of molding, so that the surface hardness is hard and the electric conductivity is excellent. When metal particles are used, the electrical resistance is desirably 15 (μΩ · cm) (20 ° C.) or less.

As the filler, ceramic waste, sludge, volcanic ash, fermentation residue, and other waste resources can be applied.
Ceramic waste, sludge contains a lot of lamellar viscous minerals. Ceramic wastes are pulverized in a liquid medium to obtain fine particles separated into a single layer, and sludge is a dispersion in which water is used as a liquid medium. it can.
Many of the volcanic ash are fine and have a uniform particle size, and the fermentation residue has a powder dispersed in the liquid medium. In addition, other waste resources such as metal powders can be used advantageously.

As the filler, fibers having an aspect ratio of 10 or more are also preferably employed.
Examples of such fibers include various fibers such as cellulose fiber, carbon fiber, and glass fiber. According to this embodiment, since aggregation of fibers is suppressed, a resin composite material with improved dispersibility can be obtained.

The introduction part 12 is provided with a high-pressure steam generation part 24 at the base end, and the tip is connected to the kneading part 13. In the generating unit 24, the high-pressure steam that is vaporized by heating the liquid medium is introduced into the kneading unit 13, which has a flow rate adjusted by the flow rate adjusting valve 25, and is close to normal temperature.
Then, the high-pressure steam is cooled and condensed to change into a liquid medium, and the latent heat is released to raise the temperature of the synthetic resin and the filler.

As the liquid medium, water is suitably employed, and any liquid medium that vaporizes at the kneading temperature at the atmospheric pressure level and liquefies at room temperature can be used as appropriate.
When the liquid medium is heated and kneaded together with the filler and the synthetic resin in a sealed state, the fluid medium has an effect of forming a fine dispersed phase of the filler in the fluid matrix phase of the synthetic resin.
In other words, the liquid medium has a function of making the composite uniform on a micro level by preventing the powder from aggregating in the fluid of the synthetic resin during heating and kneading.

The cylinder 21 includes a feed zone A for transferring the filler and the synthetic resin introduced from the hopper 11, and a steam introduction zone for introducing high-pressure steam from the introduction unit 12 into the filler and the synthetic resin being transferred and melting the synthetic resin. B, condensate (liquid medium), synthetic resin and filler are heated and kneaded at a set temperature, and the aggregation of the filler is suppressed by the action of the liquid medium in a high temperature and high pressure state in the closed system, and the filler is finely formed in the matrix of the melt. Heating and kneading zone C for uniform dispersion, liquid medium discharge zone D for vaporizing the liquid medium contained in the kneaded material and discharging it from the discharge unit 14, and a kneaded material in a molten state at a constant pressure and in a constant amount. And a metering zone E that is adjusted so as to be taken out from
The cylinder 21 is provided with a temperature control heater 26 on the outer periphery of the portion excluding the feed zone A and the steam introduction zone B. Each zone of the cylinder 21 is controlled to an appropriate temperature by the heater 26.

The screw 22 has a spiral flight formed around its axis, and is rotated by a drive unit 27 provided at the end thereof. Thus, the kneaded material is continuously extruded from the upstream side to the downstream side under pressure from the flight.
In addition, although the extrusion-type kneading part 13 in 1st Embodiment has illustrated the uniaxial type, it may be a biaxial type or a multiaxial type, and it becomes thin as a screw outer diameter goes to a front-end | tip. It may be a conical type.

The discharge part 14 is configured so that the opening formed in the cylinder 21 is covered with a mesh plate (not shown) so that the kneaded body does not jump out of the discharge part 14.
When the kneaded material passes under the discharge part 14, the closed system is switched to the open system, and the internal pressure is reduced to the atmospheric pressure level, so that the liquid medium contained is vaporized.

As shown in the water phase diagram of FIG. 2, in the heating and kneading zone C, since it is in a sealed state, its internal pressure P (> P _z ) is higher than the saturated vapor pressure P _z at the kneading temperature T _z . It has become. For this reason, in the heating and kneading zone C, the liquid medium is maintained in a high-temperature and high-pressure liquid state, suppresses the aggregation of the filler in the melt matrix, and contributes to the fine and uniform dispersion of the filler.

Since the liquid medium discharge zone D is in an open state, a high pressure gradient is generated based on the pressure difference between the saturated vapor pressure P _z (> P ₀ ) and the atmospheric pressure P ₀ at the kneading temperature T _z .
For this reason, in the liquid medium discharge zone D, the liquid medium is vaporized and discharged from the discharge unit 14 to the outside, and the kneaded body is dehydrated.

Although not shown in FIG. 1, a plurality of discharge portions 14 having a function of adjusting the dehydration pressure by the throttle valve 14a as shown in FIG. 6A are provided, and the dehydration pressure is set to be increased stepwise. Thus, dehydration of the kneaded product can be gradually advanced instead of abruptly.
Further, the upper opening of the discharge unit 14 is connected to the liquefying unit 28 (FIG. 8) having a cooling function, and the discharge of the liquid medium from the kneaded body is promoted by utilizing the saturated vapor pressure difference due to the temperature difference therebetween. Can do.
Thus, by exposing the kneaded product to a pressure lower than the saturated vapor pressure P _z at the set kneading temperature T _z , the contained condensate (liquid medium) can be discharged from the inside of the kneading unit 13 to the outside. .

The kneaded product from which the condensate (liquid medium) has been discharged is taken out from the take-out portion 15 and solidified through a cooling bath (not shown), and then cut into rice-shaped pellets by a pelletizer (not shown). .
As described above, the resin composite material formed into pellets is remelted and formed into various final products after distribution in the market.
In addition, high-quality materials such as a masterbatch in which fillers are blended at a high ratio and diluted by re-kneading with synthetic resin pellets are used to prevent filler aggregation. Provided.
In the case of a synthetic resin that is liquid at room temperature, a high-quality synthetic resin in which a filler is uniformly dispersed is provided.

As described above, in the first embodiment, the configuration in which high-pressure steam is directly introduced into the kneading unit 13 makes it possible to efficiently supply the liquid medium and the heat energy to the synthetic resin and the filler. Executed.
Furthermore, it is possible to increase the amount of the synthetic resin and the filler charged into the hopper 11 and increase the kneading speed in the kneading unit 13 to improve the productivity of the resin composite material.

(Second Embodiment)
A resin composite material manufacturing apparatus according to the second embodiment will be described with reference to FIG.
3, parts having the same configuration or function as those in FIG. 1 are denoted by the same reference numerals, and redundant description is omitted.
The introduction part 12 in the second embodiment is characterized in that the vaporized gas of the condensate (liquid medium) discharged from the discharge part 14 is introduced into the steam introduction zone B as high-pressure steam.

Further, a liquid medium container 23c is further provided on the upper portion of the hopper 11, and replenishment of the liquid medium is performed for insufficient supply of high-pressure steam from the liquid medium discharge zone D particularly in the initial stage of operation.
Thus, by using the discharge part 14 as the high-pressure steam generation part 24, the energy consumed for vaporizing the liquid medium in the liquid medium discharge zone D can be recovered in the steam introduction zone B.
Furthermore, since most of the liquid medium can be reused repeatedly, the load on the surrounding environment can be reduced.

(Third embodiment)
A resin composite material manufacturing apparatus according to the third embodiment will be described with reference to FIG.
4, parts having the same configuration or function as those in FIGS. 1 and 3 are denoted by the same reference numerals, and redundant description is omitted.

In the introduction part 12 in the third embodiment, an external high-pressure steam generation part 24a and a high-pressure steam generation part 24b diverted from the discharge part 14 are connected via a flow rate adjustment valve 25a and a flow rate adjustment valve 25b, respectively. .
As a result, the flow rate regulating valves 25a and 25b can be adjusted to introduce an appropriate amount of high-pressure steam into the steam introduction zone B, so that a resin composite material with high quality stability can be manufactured.

(Fourth embodiment)
A resin composite material manufacturing apparatus according to the fourth embodiment will be described with reference to FIGS. 5 and 6.
In the first to third embodiments, the synthetic resin and filler charging process, the high-pressure steam introducing process, the heating and kneading process, the liquid medium discharging process, and the kneaded material taking process are continuous, respectively. there were.
On the other hand, the manufacturing apparatus 10 according to the fourth embodiment is of a batch type in which these steps are repeated intermittently.
5 (A), FIG. 5 (B), FIG. 6 (A), and FIG. 6 (B) show the manufacturing apparatus 10 cut so as to include the hopper 11, the introduction part 12, the discharge part 14, and the take-out part 15, respectively. A cross-sectional view is shown.

  The resin composite material manufacturing apparatus 10 according to the fourth embodiment includes a hopper 11 for introducing a synthetic resin and a filler, an introduction unit 12 for introducing high-pressure steam into the synthetic resin and the filler, and a condensate (liquid) of high-pressure steam. Medium), a kneading part 13 for kneading the synthetic resin and the filler at a set temperature, a discharging part 14 for discharging the condensate contained in the kneaded product at a pressure lower than the saturated vapor pressure at the kneading temperature, and the condensate is discharged. And a take-out part 15 for taking out the kneaded material.

  And the kneading part 13 in 4th Embodiment rotates and knead | mixes in the sealed space 31 with the casing 32 in which opening / closing with respect to the sealed space 31 is repeated in order of the hopper 11, the introducing | transducing part 12, the discharge part 14, and the taking-out part 15. And a rotor 33 for kneading the product.

As shown in FIG. 5A, the hopper 11 communicates with the kneading space 31 of the casing 32 via the on-off valve 11a. When the on-off valve 11a is in the “open state”, the hopper 11 is synthesized from the hopper 11 into the kneading space 31. Resin and filler can be charged.
When the on-off valve 11a is in the “closed state”, the flow of gas flowing between the kneading space 31 and the hopper 11 is also shut off.

As shown in FIG. 5B, the introduction portion 12 communicates with the kneading space 31 of the casing 32 through the on-off valve 12a. When the on-off valve 12a is set to the “open state”, the generating portion 24 starts the kneading space 31. High pressure steam can be introduced into the tank.
When the on-off valve 12a is in the “closed state”, the flow of gas flowing between the kneading space 31 and the introducing portion 12 is also shut off.

As shown in FIG. 6 (A), the discharge portion 14 is provided at the opening of the kneading space 31 formed in the casing 32, and the pressure of the kneading space 31 is adjusted, and the kneaded material is dehydrated by the adjusted pressure. Can be executed.
The partition plate 41 separates the kneading space 31 of the casing 32 and the outside thereof, and selectively filters moisture contained in the kneaded product.
The blocking wall 42 is provided with an on-off valve 14 a and a pressure gauge 43 that form a vaporization space 44 that communicates with the kneading space 31 via the partition plate 41 and that can adjust the amount of throttling.
By adjusting the throttle amount of the on-off valve 14a, the pressure in the vaporization space 44 can be adjusted, and the dewatering speed of the kneaded material in the kneading space 31 can be controlled.

As shown in FIG. 6B, the take-out portion 15 communicates with the kneading space 31 of the casing 32 via the on-off valve 15a, and when the on-off valve 15a is in the “open state”, the kneaded material in the kneading space 31 Can be taken out.
When the on-off valve 15a is set to the “closed state”, the flow of gas flowing between the kneading space 31 and the take-out portion 15 is also blocked.
When all the on-off valves 11a, 12a, 14a, and 15a are in the “closed state”, the kneading space 31 becomes a sealed space and is maintained at the saturated vapor pressure P _z at the set kneading temperature T _z .

  The rotor 33 rotates in the kneading space 31 of the casing 32 which is set in a sealed space and set to the kneading temperature, and kneads the kneaded material. 5 and FIG. 6, the rotor 33 rotates so that two rotating bodies whose rotation directions are opposite to each other so as to entrain the input material from the hopper 11 and push out the kneaded material to the extraction portion 15. However, the present invention is not limited to such an embodiment, and known ones can be applied.

Next, the operation of the resin composite material manufacturing apparatus according to the fourth embodiment will be described based on the flowchart of FIG.
When any one of the on-off valves 11a, 12a, 14a, 15a is in the “open state”, all the others are in the “closed state”.

The open / close valve 11a of the hopper (FIG. 5A) is set to the “open state”, and the synthetic resin and the filler are put into the sealed space 31 (S11).
Next, the on-off valve 12a (FIG. 5B) of the introduction part is set to the “open state”, high-pressure steam is introduced into the sealed space 31 (S12), the filler and the synthetic resin are heated by the latent heat, A liquid medium obtained by condensing the high-temperature steam is mixed.
Further, the rotor 33 is rotationally driven while heating the heater, and the heating and kneading is continued until the dispersed phase of the filler is finely and uniformly formed in the molten molten resin matrix phase (S13, S14).

The on-off valve 14a (FIG. 6A) of the discharge unit is set to the “open state”, and the condensate (liquid medium) contained in the kneaded material is vaporized and discharged (S15). At this time, the dehydration rate of the kneaded product is adjusted by appropriately operating the throttle amount of the on-off valve 14a so that the vaporization space 44 in the discharge section 14 becomes an arbitrary pressure lower than the saturated vapor pressure at the kneading temperature T _z . The heating and kneading is continued while adjusting (No in S16).

When the kneaded material is sufficiently dehydrated (S16 Yes), the opening / closing valve 15a (FIG. 6B) of the take-out part is set to the “open state”, and the kneaded material is taken out from the sealed space 31 (S17).
The resin composite material is mass-produced by repeating the above steps until production is stopped (S18 No Yes END).

(Fifth embodiment)
A resin composite material manufacturing apparatus according to the fifth embodiment will be described with reference to FIG.
In the resin composite material manufacturing apparatus 10 according to the fifth embodiment, the introduction section 12 and the discharge section 14 are formed through a partition plate 41 through which the condensed liquid (liquid medium) is selectively passed from the kneaded product. 45 is connected.

And the liquefying part 28 which cools and liquefies the vaporization gas of the condensate (liquid medium) discharged | emitted from the discharge part 14 is further provided. The liquid medium liquefied by the liquefying unit 28 is reused in the high-pressure steam generating unit 24.
The operation of the resin composite material manufacturing apparatus 10 according to the fifth embodiment is directly applied to the flowchart of FIG. 7 and the description thereof.

  With such a configuration, the apparatus configuration can be simplified, and further, in the dehydration process, the liquid from the kneaded body is used by utilizing the saturated vapor pressure difference accompanying the temperature difference between the liquefying section 28 and the sealed space 31 of the kneading section 13. The discharge of the medium can be promoted.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, changes, and combinations can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Manufacturing apparatus of resin composite material, 11 ... Hopper, 11a ... Open / close valve of hopper, 12 ... Introduction part, 12a ... Open / close valve of introduction part, 13 ... Kneading part, 14 ... Discharge part, 14a ... Open / close valve of discharge part 15 ... take-out part, 15a ... open / close valve of take-out part, 21 ... cylinder, 22 ... screw, 23 ... container, 23a ... container for synthetic resin, 23b ... container for filler, 23c ... container for liquid medium , 24 ... high-pressure steam generation section (generation section), 24 b ... external high-pressure steam generation section, 24 a ... high-pressure steam generation section diverting the discharge section, 25 (25 a, 25 b) ... flow control valve, 26 ... temperature control heater , 27 ... drive part, 28 ... liquefaction part, 31 ... kneading space (sealed space), 32 ... casing, 33 ... rotor, 41 ... partition plate, 42 ... barrier wall, 43 ... pressure gauge, 44 ... vaporization space, 45 ... shared space, T _z ... kneading temperature, P ₀ Atmospheric pressure, saturated vapor pressure at P _z ... kneading temperature T _z.

In the manufacturing apparatus of a resin composite material according to the present invention, a hopper for introducing thermoplastic resin and a filler, a high pressure that only the thermoplastic resin to melt and release the latent heat against the thermoplastic resin and the filler An introduction part for introducing steam , a condensate obtained by condensing the high-pressure steam that has released the latent heat, a melt of the thermoplastic resin, and a solid of the filler are kneaded at a set temperature into a matrix phase of the melt emissions and kneading section for kneading product to form a dispersed phase of the solid, the vaporized gas that the condensate is vaporized at a lower pressure than the saturated vapor pressure at the set temperature during the kneading contained in the kneaded product And a discharge portion for taking out the kneaded material from which the condensate has been discharged.

In the method for producing a resin composite material according to the present invention, an apparatus including a hopper, an introduction unit, a kneading unit, a discharge unit, and a take-out unit is used, and a step of introducing a thermoplastic resin and a filler into the hopper ; introducing a high pressure steam to only melt the thermoplastic resin releases latent heat against the thermoplastic resin and the filler to the introduction, condensate the high-pressure steam that has released the latent heat is condensed the steps of the thermoplastic kneaded product to form a dispersed phase of the melt and solid of the filler kneaded with the kneading part of the set temperature the solid matrix phase of the melt of the resin, the kneaded product a step of discharging the vaporized gas of the condensate was vaporized at a lower pressure than the saturated vapor pressure at the set temperature during the kneading from the discharge portion that is included in, before the condensate is discharged The kneaded product characterized in that it comprises the steps of: retrieving from said extraction unit.

Claims (7)

A hopper for charging synthetic resin and filler;
An introduction part for introducing high-pressure steam into the synthetic resin and the filler;
A kneading section for kneading the condensate of the high-pressure steam, the synthetic resin and the filler at a set temperature;
A discharge section for discharging the condensate contained in the kneaded material at a pressure lower than a saturated vapor pressure at the kneading temperature;
And a take-out part for taking out the kneaded material from which the condensate has been discharged. In the manufacturing apparatus of the resin composite material according to claim 1,
The kneading part is
A cylinder provided with the hopper, the introduction part, the discharge part, and the take-out part in order from the upstream side to the downstream side;
And a screw for continuously rotating the kneaded material from the upstream side toward the downstream side by rotating the shaft inside the cylinder. In the manufacturing apparatus of the resin composite material according to claim 2,
The apparatus for producing a resin composite material, wherein the introduction unit introduces the vaporized gas of the discharged condensate as the high-pressure steam. In the manufacturing apparatus which manufactures the resin composite material of Claim 1,
The kneading part is
A casing in which opening / closing with respect to the sealed space is repeated in the order of the hopper, the introduction portion, the discharge portion, and the extraction portion;
And a rotor that rotates in the sealed space and kneads the kneaded material. In the manufacturing apparatus of the resin composite material according to claim 4,
The apparatus for producing a resin composite material, wherein the introduction part and the discharge part are connected to a shared space formed through a partition plate that selectively allows the condensate to pass from the kneaded product. In the manufacturing apparatus of the resin composite material according to claim 1,
The apparatus for producing a resin composite material, further comprising a liquefaction unit that cools and liquefies the vaporized gas of the condensate discharged from the discharge unit. Adding a synthetic resin and a filler;
Introducing high pressure steam into the synthetic resin and the filler;
Kneading the condensate of the high-pressure steam, the synthetic resin and the filler at a set temperature;
Discharging the condensate contained in the kneaded material at a pressure lower than the saturated vapor pressure at the kneading temperature;
Taking out the kneaded material from which the condensate has been discharged, and a method for producing a resin composite material.

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