WO2014155965A1 - 混練機及び混練方法 - Google Patents
混練機及び混練方法 Download PDFInfo
- Publication number
- WO2014155965A1 WO2014155965A1 PCT/JP2014/001013 JP2014001013W WO2014155965A1 WO 2014155965 A1 WO2014155965 A1 WO 2014155965A1 JP 2014001013 W JP2014001013 W JP 2014001013W WO 2014155965 A1 WO2014155965 A1 WO 2014155965A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- kneading
- coupling agent
- unit
- inorganic additive
- kneader
- Prior art date
Links
- 238000004898 kneading Methods 0.000 title claims abstract description 222
- 239000000463 material Substances 0.000 claims abstract description 152
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 229920005989 resin Polymers 0.000 claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 44
- 239000000654 additive Substances 0.000 claims abstract description 37
- 230000000996 additive effect Effects 0.000 claims abstract description 35
- 239000007822 coupling agent Substances 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 66
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 42
- 239000007795 chemical reaction product Substances 0.000 claims description 33
- 239000000377 silicon dioxide Substances 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000006227 byproduct Substances 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 14
- 239000005060 rubber Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 7
- 239000012744 reinforcing agent Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 5
- 239000006229 carbon black Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
- B29B7/246—Component parts, details or accessories; Auxiliary operations for feeding in mixers having more than one rotor and a casing closely surrounding the rotors, e.g. with feeding plungers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
- B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/823—Temperature control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
- B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
Definitions
- the present invention relates to a kneader and a kneading method. More specifically, the present invention relates to a kneader and a kneading method for kneading a resin material to which silica and a silane coupling agent are added as reinforcing agents.
- a filler filler
- a rubber material raw rubber which is a raw material of the rubber product and kneading
- a reinforcing component such as carbon black or silica is added to the filler.
- silica is increasingly used for the purpose of increasing the strength of rubber materials.
- reinforcing components such as silica are added to synthetic resin materials typified by polyolefin resins such as PE (polyethylene) and PP (polypropylene), polyamide resins such as nylon, and polyester resins such as PET (polyethylene terephthalate).
- polyolefin resins such as PE (polyethylene) and PP (polypropylene)
- polyamide resins such as nylon
- polyester resins such as PET (polyethylene terephthalate).
- silica which is an inorganic material
- a resin material organic rubber material or synthetic resin material
- a silane coupling agent is added to the resin material together with silica.
- the silane coupling agent imparts an organic functional group to the surface of the silica to facilitate chemical bonding of the silica to the resin material.
- Patent Document 1 discloses a method of kneading a polymer material such as rubber blended with silica and a silane coupling agent using a batch kneader.
- Patent Document 2 discloses a sealed rubber kneader provided with a dust collection duct for sucking material scattered in the hopper of the kneader.
- the reaction state of the silane coupling agent may change depending on the type of the resin material used, the material bias, or the temperature distribution in the kneader. Therefore, the kneading time and kneading conditions may fluctuate more than expected. Therefore, in order to sufficiently perform the kneading and ensure the reaction of the silane coupling agent, to what extent the resin material is kneaded inside the kneader, in other words, to what extent the reaction of the silane coupling agent is It is desirable to know exactly whether it is completed.
- the kneaders described in Patent Document 1 and Patent Document 2 are not capable of knowing how much the resin material is actually kneaded in the kneader. Therefore, when kneading including a silane coupling agent is performed using a kneader described in Patent Document 1 or Patent Document 2, kneading is completed even though the reaction of the silane coupling agent is not yet completed. As a result, the effect of the silane coupling agent cannot be sufficiently obtained, and there is a possibility that the quality of the resin material varies depending on the batch processing of kneading.
- the kneading time may be longer than necessary. For example, unnecessary kneading may continue even after the reaction of the silane coupling agent is completed, which may reduce productivity.
- the object of the present invention is to accurately monitor the reaction rate between an inorganic additive and a coupling agent when kneading a resin material to which an inorganic additive and a coupling agent are added as a reinforcing agent. It is to establish both stability and productivity improvement.
- the kneading machine of the present invention is a kneading chamber to which a material containing a resin material, an inorganic additive added to the resin material, and a coupling agent that increases the affinity of the inorganic additive for the resin material is supplied. And a kneading machine body having a kneading part for kneading the material in the kneading chamber, and detecting a reaction product generated by the reaction of the coupling agent with the inorganic additive. And a kneading monitor section for monitoring the kneading state.
- a kneader 1 shown in FIG. 1 includes a closed kneader main body 20 (batch type closed kneader), a kneading monitor unit 12 for monitoring a kneading state of materials kneaded in the kneader main body 20, and And a control unit 15 that controls the operation of the kneader body 20.
- the kneading material (resin material) kneaded by the kneading machine body 20 includes rubbers such as BR (butadiene rubber) and SBR (styrene / butadiene rubber), polyolefin resins such as PE and PP, and polyamides such as nylon.
- BR butadiene rubber
- SBR styrene / butadiene rubber
- polyolefin resins such as PE and PP
- polyamides such as nylon.
- Addition of inorganic additives such as silica and carbon black as a reinforcing agent and a coupling agent that makes this inorganic additive compatible with the matrix to a matrix (principal component) containing synthetic resin such as resin and polyester resin such as PET What was done is adopted.
- a kneading material various additives (for example, a vulcanizing agent, a vulcanizing aid, or a reinforcing agent) are added to raw rubber (raw rubber) used for tires, nylon resins such as polyethylene resin and PA66.
- a vulcanizing agent for example, a vulcanizing agent, a vulcanizing aid, or a reinforcing agent
- raw rubber raw rubber
- nylon resins such as polyethylene resin and PA66.
- the one to which the agent is added is used.
- silica, carbon black, or the like is used as the inorganic additive.
- a silane coupling agent or the like is used as the coupling agent.
- rubber is used as the resin material
- silica is used as the inorganic additive
- silane coupling agent is used as the coupling agent.
- the kneader main body 20 includes a casing 3 having a kneading chamber 2 therein, a kneading unit 4 that is inserted into the casing 3 and kneads the material in the kneading chamber 2, and a casing. 3 and a temperature adjusting unit 19 such as a heater for adjusting the temperature of the kneading chamber 2 by changing the temperature of 3.
- the casing 3 (barrel) has a hollow interior made of metal or the like and is supported by a metal support. Inside the casing 3, a kneading chamber 2 (chamber) having a cross section of a spectacle hole is formed. In the kneading chamber 2, a pair of kneading rotors 4a and 4b of the kneading unit 4 described later is accommodated.
- a material supply port 5 is formed on the upper side of the casing 3 so as to penetrate the upper portion (upper wall) of the casing 3 in the vertical direction. Further, on the upper side of the material supply port 5, there is provided a material supply unit 6 for supplying the material into the kneading chamber 2 through the material supply port 5.
- a material discharge port 7 penetrating the lower part (lower wall) of the casing 3 in the vertical direction is formed on the lower side of the casing 3.
- the material inside the kneading chamber 2 (the kneaded material) is discharged to the outside of the kneading chamber 2 through the material discharge port 7.
- the material supply unit 6 is a long cylindrical member.
- the material supply unit 6 is attached to the upper side of the casing 3 in a state of standing along the vertical direction.
- the material stored in the material supply unit 6 is pushed downward toward the kneading chamber 2, whereby the material is supplied to the kneading chamber 2.
- the material supply unit 6 accommodates a material before kneading (unkneaded) and a floating weight 8 for pushing this material toward the kneading chamber 2 (downward).
- the floating weight 8 is disposed inside the material supply unit 6 so as to be movable in the vertical direction.
- the floating weight 8 is moved in the vertical direction by a cylinder portion 9 described later.
- a material supply door 10 for taking the material into the material supply unit 6 is provided on the side surface of the material supply unit 6. Further, on the upper side of the material supply unit 6, a cylinder unit 9 that pushes the floating weight 8 provided inside the material supply unit 6 downward is provided.
- the kneading unit 4 includes a pair of kneading rotors 4a and 4b.
- the kneading rotors 4a and 4b are arranged side by side in the kneading chamber 2 so that the axes are parallel to each other.
- the pair of kneading rotors 4a and 4b is rotationally driven around an axis facing the horizontal direction using a motor (not shown) or the like.
- These kneading rotors 4a and 4b are of different direction rotation type. In the case of the kneading rotors 4a and 4b shown in FIG. 1, the kneading rotor on the left side in FIG.
- first rotor 4a rotates in the F direction
- second rotor 4b rotates in the R direction which is the rotation direction opposite to the first rotor 4a.
- one kneading blade 11 protruding in a direction away from the rotation axis of the kneading rotor (outward direction) is formed on each rotor 4a and 4b. ing.
- the kneading blade 11 rotates in the kneading chamber 2 to scrape the kneading material in the kneading chamber 2, thereby applying a shearing force to the kneading material (resin material).
- the kneading material inside can be kneaded.
- the kneading material containing silica (inorganic additive) and silane coupling agent (coupling agent) is kneaded in the kneader main body 20 described above, the quality stability and productivity of the kneaded material after kneading.
- it is preferable to accurately monitor the kneading state of the kneaded material in other words, to accurately grasp the reaction rate between the inorganic additive and the coupling agent.
- the kneading machine 1 of this embodiment includes a kneading monitor unit 12 that monitors the kneading state of the kneaded material by detecting a reaction product generated by the reaction of the silane coupling agent with silica.
- This reaction product corresponds to an alcohol such as ethanol or methanol, or a carboxylic acid such as acetic acid, which is generated as a byproduct (reaction product) when the silane coupling agent undergoes a coupling reaction with silica.
- the kneading monitor unit 12 detects a reaction product generated by the reaction of the silane coupling agent with silica, and based on the detected amount of the reaction product detected by the detection unit 13, the silane coupling is performed.
- the calculating part 14 which is a calculation part which calculates the reaction rate (material kneading
- the kneading machine 1 of the present embodiment is based on the kneading state of the material estimated by the kneading monitor unit 12, specifically, the operation of the kneading machine body 20, specifically, at least the kneading unit 4 (more specifically, The controller 15 further controls the operation of the kneading rollers 4a and 4b).
- the detection unit 13 detects the concentration of the reaction product in a gas state generated from the kneading chamber 2 provided inside the kneader body 20.
- the detection unit 13 employs a configuration that detects at least one of ethanol, methanol, and acetic acid.
- a semiconductor gas sensor that can detect the concentration of alcohol, carboxylic acid, or the like. Is used.
- the illustrated detection unit 13 is attached inside the material supply unit 6 located slightly above the material supply door 10. Specifically, the detection unit 13 is attached to an upper portion (in the illustrated example, the dust collection duct 16 of the kneader body 20) of the material supply unit 6 formed in a vertically long cylindrical shape. .
- the internal space 6a of the material supply unit 6 is airtightly isolated from the outside, and can store a reaction product in a gas state. Therefore, when the gaseous reaction product generated from the kneading chamber 2 moves to the upper side of the internal space 6a of the material supply unit 6 and accumulates in the upper part of the internal space 6a, the detection provided inside the material supply unit 6 The unit 13 can detect the reaction product.
- the mounting position of the detection unit 13 is not limited to the upper part of the internal space of the material supply unit 6 as shown in FIG.
- the detection unit 13 may be provided at another position in the internal space 6 a of the material supply unit 6.
- the detection unit 13 may be provided at the tip of the gas sampling pipe.
- the concentration of the reaction product in the gaseous state detected by the detection unit 13 described above is converted into a signal by the detector main body 17 (for example, an ethanol detector).
- the signal is sent to a calculation unit 14 composed of a personal computer or the like.
- a detector that detects other gases may be employed as the detector body 17.
- the calculation unit 14 determines how much of the silane coupling agent added to the material based on the concentration of the reaction product detected by the detection unit 13 (more precisely, the signal converted by the detector main body 17). Whether the ratio of the silane coupling agent has caused the reaction is calculated as “reaction rate of the silane coupling agent”. Specifically, the “reaction rate of the silane coupling agent with respect to the detected concentration of the reaction product (the degree of kneading progress of the kneaded material)” is previously examined by experiments and the data of the reaction rate is stored in the calculation unit 14.
- the calculation unit 14 calculates the reaction rate of the silane coupling agent using the stored reaction rate data and the concentration of the reaction product detected by the detection unit 13 during the kneading operation.
- the estimation unit 18 uses the “reaction rate of the silane coupling agent” calculated by the calculation unit 14 to estimate the actual material kneading state, for example, to what extent the kneading has progressed.
- the estimation unit 18 may be included in one computer together with the calculation unit 14.
- the control unit 15 controls the operation of the kneader main body unit 20 based on the reaction rate calculated by the calculation unit 14, in other words, using the kneading state of the material estimated by the estimation unit 18 of the kneading monitor unit 12. To do.
- the estimation unit 18 determines whether or not the reaction rate calculated by the calculation unit 14 exceeds a certain threshold value.
- the control unit 15 controls the operation state such as operating or stopping the kneader main body unit 20.
- the reaction rate of the material after kneading is constant for each batch, and the stability of the kneading quality can be maintained for each batch.
- kneading is performed based on the reaction rate calculated by the calculation unit 14, kneading is not performed for a long time more than necessary, and the kneading time is not too short. Therefore, it is possible to perform an operation with good productivity without causing unnecessary kneading time.
- a control signal is sent from the control unit 15 to the kneading machine main body 20, thereby changing the rotation speed of the kneading rotors 4 a and 4 b, or the casing 3 of the kneading machine main body 20. It is possible to change the temperature using the temperature adjustment unit 19. In this way, the number of rotations of the kneading rotors 4a and 4b is adjusted using the material kneading state estimated by the kneading monitor unit 12, or the temperature of the kneading chamber 2 is adjusted using the temperature adjusting unit 19. It becomes possible to do. As a result, the operation of the kneader main body 20 can be controlled more finely, and the kneading state of the material can be controlled finely and with high accuracy.
- the kneading method of the present invention is a kneader main body provided with the casing 3 having the kneading chamber 2 therein, and the kneading section 4 inserted into the casing 3 and kneading the material of the kneading chamber 2.
- Part 20 is a kneading method for kneading a resin material, silica for reinforcing the resin material, and a silane coupling agent for enhancing the affinity of silica for the resin material, and the silane coupling agent reacts with silica. By detecting the reaction product generated in this manner, the kneading is performed while monitoring the kneading state of the material.
- the kneading method of the present invention is performed in the following procedure.
- the material supply door 10 described above is opened, and the kneaded material containing the resin material, silica, and silane coupling agent is supplied into the material supply unit 6.
- the kneading material supplied to the material supply unit 6 is pushed downward using the floating weight 8, and the material stored in the material supply unit 6 is disposed below the material supply unit 6. 2 is sent inside.
- mixing chamber 2 is knead
- the reaction product of alcohol or carboxylic acid is generated by the reaction of the silane coupling agent with silica in the kneaded material being kneaded.
- the reaction product generated in this manner is vaporized by the heat in the kneading chamber 2, and the vaporized reaction product rises from the material supply port 5 toward the internal space 6 a of the material supply unit 6.
- the concentration of the reaction product accumulated in the upper part of 6a is detected by the detection unit 13 of the kneading monitor unit 12.
- the signal relating to the concentration of the reaction product detected by the detection unit 13 in this way is sent to the calculation unit 14 via the detector main body 17 (for example, an ethanol detector).
- the calculation unit 14 calculates the reaction rate of the silane coupling agent based on the concentration of the reaction product.
- the estimation unit 18 uses the calculated reaction rate of the silane coupling agent to estimate the progress of kneading of the kneaded material, in other words, the kneaded state of the kneaded material.
- the estimation unit 18 determines that the reaction of the silane coupling agent (coupling reaction) has been sufficiently performed. At that time, the control unit 15 sends a command signal to the kneader main body unit 20 based on the determination result of the estimation unit 18 and controls the kneader main body unit 20 to end the kneading operation. On the other hand, when the calculated reaction rate does not exceed a certain threshold value, the estimation unit 18 determines that the reaction of the silane coupling agent has not been sufficiently completed. At that time, the control unit 15 controls the kneader main body unit 20 to continue the kneading operation based on the determination result of the estimation unit 18.
- the reaction rate of the kneaded material is constant for each batch after kneading, and the quality after kneading is uniform between the batches of the kneading operation. Therefore, it becomes possible to maintain the quality stability between batches.
- reaction rate is controlled so as not to exceed a certain threshold, kneading is not performed for a longer time than necessary. As a result, useless kneading time does not occur, and kneading with high productivity can be performed.
- the control unit 15 changes the number of rotations of the kneading rotors 4a and 4b from the control unit 15 to the kneading machine main body unit 20 or changes the temperature of the casing 3 of the kneading machine main body unit 20 to the temperature adjusting unit 19. It is also possible to send a signal that changes according to. By doing so, it becomes possible to finely adjust the operating conditions of the kneading machine main body 20 using the kneading state of the kneading material estimated by the estimation unit 18 of the kneading monitor unit 12, and further kneading the kneading material. It becomes possible to control the state with high accuracy.
- the reaction rate between the silica and the silane coupling agent is accurately determined. Can be monitored. Therefore, the reaction rate of the material after kneading becomes constant for each batch, and it becomes possible to maintain quality stability for each batch. Further, since kneading is not performed for a longer time than necessary, useless kneading time does not occur, and kneading with high productivity can be performed. As a result, both quality stability and productivity improvement can be established.
- embodiment disclosed this time is an illustration and restrictive at no points.
- matters that are not explicitly disclosed, for example, operating conditions and operating conditions, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that a person skilled in the art normally performs. Instead, values that can be easily assumed by those skilled in the art are employed.
- the closed type kneader is exemplified as the kneader of the present invention, but there is no problem even if the technique of the present invention is applied to the continuous kneader.
- silica as an inorganic additive and using a silane coupling agent as a coupling agent are exemplified.
- a reinforcing agent such as carbon black may be used, or a coupling agent other than the silane coupling agent may be used.
- the kneading part 4 knead mixing the material in the kneading chamber 2 is equipped with a pair of kneading rotors 4a and 4b
- this invention is not limited to this.
- various types of kneading sections can be employed.
- a kneading part equipped with a screw can also be used as the kneading part of the present invention.
- the kneading machine of this embodiment is a kneading in which a material including a resin material, an inorganic additive added to the resin material, and a coupling agent that increases the affinity of the inorganic additive for the resin material is supplied.
- a casing having a chamber, a kneader main body having a kneading section for kneading the material in the kneading chamber, and detecting the reaction product generated by the reaction of the coupling agent with the inorganic additive
- a kneading monitor section for monitoring the kneading state.
- the kneading monitor unit is based on a detection unit that detects a reaction product generated when the coupling agent reacts with the inorganic additive, and a detection amount of the reaction product detected by the detection unit.
- a calculation unit that calculates a reaction rate of the coupling agent and an estimation unit that estimates a kneading state of the material using the calculated reaction rate may be provided.
- a control unit for controlling the operation of the kneading machine main body based on the kneading state of the material monitored by the kneading monitoring unit may be further provided.
- the apparatus further includes a control unit that controls the operation of the kneading machine main body, and the kneading monitor unit detects a reaction product generated by the coupling agent reacting with the inorganic additive, A calculation unit that calculates a reaction rate of the coupling agent based on a detected amount of the reaction product detected by the detection unit, and an estimation that estimates a kneading state of the material using the calculated reaction rate And the control unit may control the operation of the kneading machine main body based on the kneading state of the material monitored by the kneading monitor unit.
- the inorganic additive is silica that reinforces the resin material
- the coupling agent is a silane coupling agent that increases the affinity of the silica for the resin material
- the detection unit includes the detection unit It is preferable to have a configuration for detecting at least one gas of ethanol, methanol, and acetic acid generated by reacting with silica.
- the kneading method of the present invention is added to the resin material and the resin material using a kneader equipped with a casing having a kneading chamber inside and a kneading section for kneading the material of the kneading chamber.
- a kneading method in which an inorganic additive and a coupling agent that increases the affinity of the inorganic additive for the resin material are kneaded, and the reaction product generated by the reaction of the coupling agent with the inorganic additive is detected.
- kneading is performed while monitoring the kneading state of the material.
- the reaction rate between the inorganic additive and the coupling agent is accurately determined. It is possible to monitor, and it is possible to establish both quality stability and productivity improvement.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Claims (6)
- 樹脂材料と、前記樹脂材料に添加される無機添加剤と、前記樹脂材料に対する前記無機添加剤の親和性を高めるカップリング剤とが含まれる材料が供給される混練室を有するケーシング、および前記混練室内の前記材料を混練する混練部を有する混練機本体部と、
前記カップリング剤が前記無機添加剤と反応して発生する反応生成物を検出することにより、前記材料の混練状態をモニタする混練モニタ部と
を備えている混練機。 - 前記混練モニタ部は、
前記カップリング剤が前記無機添加剤と反応して発生する前記反応生成物を検出する検出部と、
前記検出部で検出された前記反応生成物の検出量に基づいて、前記カップリング剤の反応率を算出する算出部と、
算出された前記反応率を用いて前記材料の混練状態を推定する推定部と
を備えている請求項1に記載の混練機。 - 前記混練モニタ部でモニタされた材料の混練状態に基づいて、前記混練機本体部の運転を制御する制御部をさらに備えている、請求項1または2に記載の混練機。
- 前記混練機本体部の運転を制御する制御部をさらに備え、
前記混練モニタ部は、前記カップリング剤が前記無機添加剤と反応して発生する反応生成物を検出する検出部と、前記検出部で検出された前記反応生成物の検出量に基づいて、前記カップリング剤の反応率を算出する算出部と、算出された前記反応率を用いて前記材料の混練状態を推定する推定部とを備えており、
前記制御部は、前記混練モニタ部でモニタされた材料の混練状態に基づいて、前記混練機本体部の運転を制御する、
請求項1に記載の混練機。 - 前記無機添加剤は、前記樹脂材料を補強するシリカであり、
前記カップリング剤は、前記樹脂材料に対する前記シリカの親和性を高めるシランカップリング剤であり、
前記検出部は、前記シリカと反応して発生するエタノール、メタノール、および酢酸のうちの少なくとも1つ以上のガスを検出する構成を有する、請求項2または4に記載の混練機。 - 混練室を内部に有するケーシングと、前記混練室の材料を混練する混練部とを備えた混練機を用いて、樹脂材料と、前記樹脂材料に添加される無機添加剤と、前記樹脂材料に対する前記無機添加剤の親和性を高めるカップリング剤とを混練する混練方法であって、
前記カップリング剤が前記無機添加剤と反応して発生する反応生成物を検出することにより、材料の混練状態をモニタしながら混練を行うことを特徴とする混練方法。
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EP14774747.1A EP2979834B1 (en) | 2013-03-27 | 2014-02-26 | Kneader and kneading method |
CN201480018302.XA CN105189072B (zh) | 2013-03-27 | 2014-02-26 | 混合搅拌机及混合搅拌方法 |
BR112015024636A BR112015024636A2 (pt) | 2013-03-27 | 2014-02-26 | amassadeira e método de amasso |
US14/771,336 US10265884B2 (en) | 2013-03-27 | 2014-02-26 | Kneader and kneading method |
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JP6852294B2 (ja) * | 2016-07-06 | 2021-03-31 | 住友ゴム工業株式会社 | ゴム混練装置及びゴム混練方法 |
JP6915284B2 (ja) * | 2017-01-30 | 2021-08-04 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物の製造方法 |
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US10265884B2 (en) | 2019-04-23 |
TWI556934B (zh) | 2016-11-11 |
EP2979834A1 (en) | 2016-02-03 |
JP2014188847A (ja) | 2014-10-06 |
TW201446455A (zh) | 2014-12-16 |
KR20150132577A (ko) | 2015-11-25 |
EP2979834B1 (en) | 2018-09-05 |
KR101816980B1 (ko) | 2018-01-09 |
EP2979834A4 (en) | 2016-11-02 |
AR095933A1 (es) | 2015-11-25 |
BR112015024636A2 (pt) | 2017-07-18 |
US20160001463A1 (en) | 2016-01-07 |
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