WO2013118763A1 - 樹脂混練物の製造方法 - Google Patents
樹脂混練物の製造方法 Download PDFInfo
- Publication number
- WO2013118763A1 WO2013118763A1 PCT/JP2013/052708 JP2013052708W WO2013118763A1 WO 2013118763 A1 WO2013118763 A1 WO 2013118763A1 JP 2013052708 W JP2013052708 W JP 2013052708W WO 2013118763 A1 WO2013118763 A1 WO 2013118763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- kneading
- resin
- opening
- additive
- thermoplastic resin
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/41—Intermeshing counter-rotating screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
- B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
- B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
-
- 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
- B29B7/002—Methods
-
- 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
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
-
- 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
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- 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
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
-
- 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
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
- B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2805—Mixing plastics, polymer material ingredients, monomers or oligomers
-
- 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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/94—Lubricating
- B29C48/95—Lubricating by adding lubricant to the moulding material
Definitions
- the present invention relates to a method for producing a resin kneaded product containing an additive.
- the twin screw extruder can be mixed and dispersed satisfactorily for many materials and can be discharged with a stable extrusion amount, and thus is widely used for the production of resin kneaded materials.
- the amount of material biting in the twin screw extruder supply unit may limit the extrusion amount. Many.
- a method of using a forced supply device can be mentioned.
- a forced supply device compactor
- the effect is not sufficient with fine powder with very fine particles and low bulk specific gravity that is easy to fluidize. It is difficult to obtain the desired amount of extrusion, and it can be operated only in a limited range of extrusion conditions. Can not do it.
- the biggest factor preventing the material containing fine powder in the supply part is the large amount of air contained in the fine powder due to its low bulk specific gravity.
- the material containing a large amount of air is compressed in the twin-screw extruder, the air is separated, and the air flows toward the twin-screw extruder supply unit, that is, in the direction opposite to the moving direction of the material.
- the fine powder is fluidized in the barrel.
- the apparent friction coefficient of the material becomes small, and compression by the screw of the fine powder hardly occurs.
- the original mass transport amount of the screw is lowered.
- the material is softened by heating from the barrel, and compression and melting proceed together with the shearing force by the screw, so that the extrusion action is not lost.
- it is only capable of exhibiting a much lower capacity than the amount of extrusion obtained by compressing the material, which is the original function of the twin-screw extruder, and melting mainly by mechanical shear heating.
- the air stays in the twin-screw extruder, so that a so-called feed neck phenomenon, in which the material does not enter the extruder at the supply port, is likely to occur.
- Patent Document 1 the air contained in the fine powder is not caused to flow backward to the supply port of the extruder but escapes from an opening provided downstream of the supply port.
- unmelted material may or may not be ejected from the opening, and optimization of the extrusion conditions is required.
- the material When the material reaches the opening with insufficient melting or kneading of the resin, the material is wound up by the rotation of the screw, and the unmelted material is ejected from the opening (by the rotation of the screw of the twin screw extruder, The powder is rolled up from the opening and comes out), which makes it difficult to operate stably.
- the material containing air becomes difficult to compress, making it difficult to separate from the air, and venting up (the material comes out from the opening little by little) tends to occur. It becomes difficult to drive stably.
- the present invention is as follows.
- thermoplastic resin (b) is a polyolefin resin or a polystyrene resin.
- thermoplastic resin modifier (c) is an alkyl (meth) acrylate polymer.
- the method for producing a resin kneaded product according to the present invention it is possible to increase the extrusion amount of the material, and it is possible to suppress the vent-up at the opening while suppressing the ejection of the unmelted material at the opening.
- the present inventors have conducted intensive studies on the melt-kneading conditions and the screw design of the twin-screw extruder that performs melt-kneading, and it is extremely effective to produce a resin kneaded product under specific conditions. As a result, the present invention has been completed.
- the method for producing a resin kneaded product according to the present invention is a method for producing a resin kneaded product in which a material containing an additive (a) and a thermoplastic resin (b) is kneaded using a twin screw extruder.
- a shaft extruder includes a supply port, a discharge port, an opening portion that exists between the supply port and the discharge port, a kneading portion A that exists between the supply port and the opening portion, and the opening Kneading part B existing between the part and the discharge port, the ratio L1 (La / D) of the length La of the kneading part A and the screw diameter D is L1 ⁇ 3
- the material is kneaded without being completely filled in the kneading part A, and the material is kneaded in the kneading part B.
- the present invention when a resin kneaded product is produced, a problem in extruding a material containing a large amount of fine powder can be solved while using a general melt kneading twin-screw extruder. That is, the amount of extrusion can be increased by allowing air contained in the fine powder to escape from the opening provided downstream of the supply port without flowing back to the supply port of the twin screw extruder. Furthermore, it is possible to achieve ejection of unmelted material from the opening and elimination of vent-up by increasing the extrusion amount.
- additive (a) Although it does not specifically limit as additive (a), for example, inorganic additives, such as a flame retardant, a pigment, a filler, a flame retardant adjuvant, are mentioned. Among these, a flame retardant or a filler, which is often a fine powder, is preferable because it is more effective in the method according to the present invention. These additives (a) may be used alone or in combination of two or more.
- flame retardant examples include phosphate flame retardants, metal hydroxide flame retardants, nitrogen flame retardants, silicone flame retardants, hindered amine flame retardants, and the like.
- Examples of the phosphate flame retardant include a flame retardant mainly composed of ammonium phosphate and the like.
- Commercially available products include, for example, “ADK STAB FP-2100J”, “ADK STAB FP-2200”, “ADK STAB FP-2200S” (trade name, manufactured by ADEKA Corporation); “Fire Cut P770” (trade name, Suzuhiro Chemical ( Etc.).
- Examples of the metal hydroxide flame retardant include a flame retardant containing magnesium hydroxide as a main component, a flame retardant containing aluminum hydroxide as a main component, and a mixture thereof.
- Examples of the nitrogen flame retardant include a flame retardant mainly composed of melamine cyanurate.
- Examples of the silicone flame retardant include a silicone resin flame retardant having a crosslinked structure.
- Examples of the hindered amine flame retardant include a hindered amine compound having a NOR structure.
- These flame retardants may be used alone or in combination of two or more.
- phosphate flame retardants are more preferable because of excellent dispersibility in the thermoplastic resin (b).
- the pigment is not particularly limited as long as it is generally used as a polyolefin resin pigment.
- pigments include organic pigments such as azo, phthalocyanine, quinacridone, dioxazine, perylene, and isoindolinone, titanium oxide, petal, red lead, carbon black, iron black, ultramarine, cobalt blue, etc. And inorganic pigments. These pigments may be used alone or in combination of two or more.
- Examples of the filler include talc, calcium carbonate, glass fiber, carbon fiber, magnesium carbonate, mica, kaolin, calcium sulfate, barium sulfate, titanium white, white carbon, carbon black, magnesium hydroxide, aluminum hydroxide and the like. It is done.
- Examples of talc include “general-purpose talc MS” (trade name, manufactured by Nippon Talc Co., Ltd.). These fillers may be used individually by 1 type, and may use 2 or more types together.
- flame retardant aids include metal oxides such as zinc oxide; hydroxyl group-containing compounds such as pentaerythritol. These flame retardant aids may be used alone or in combination of two or more.
- the volume average particle diameter of the additive (a) is 100 ⁇ m or less because the method according to the present invention becomes more effective.
- the volume average particle diameter of the additive (a) is more preferably 75 ⁇ m or less, and further preferably 50 ⁇ m or less.
- the bulk specific gravity of the additive (a) is preferably 0.6 or less because the method according to the present invention becomes more effective.
- the bulk specific gravity of the additive (a) is more preferably 0.55 or less, and further preferably 0.5 or less. The smaller the volume average particle diameter and the smaller the bulk specific gravity of the additive (a), the easier it is to entrain air when supplying the material to the supply port of the twin screw extruder, and the air tends to stay inside the twin screw extruder.
- the method according to the present invention becomes more effective.
- the volume average particle diameter of the additive (a) is smaller than 0.6 ⁇ m, the speed at which the additive (a) falls is very slow, so the volume average particle diameter of the additive (a) is 0. It is preferably 6 ⁇ m or more.
- the bulk specific gravity of the additive (a) is smaller than 0.08, it is preferable that the bulk specific gravity of the additive (a) is 0.08 or more because a large amount of air is involved.
- the volume average particle diameter is a value measured by a laser diffraction method using a SALD-2100J type (product name, manufactured by Shimadzu Corporation).
- the bulk specific gravity is a value measured using a Casa specific gravity measuring instrument (product name, manufactured by Tsutsui Riken Kikai Co., Ltd.).
- extrusion temperature shows the preset temperature of the barrel of a twin-screw extruder, and can be suitably set with the melting temperature of the thermoplastic resin (b) mentioned later and the modifier for thermoplastic resins (c).
- thermoplastic resin (b) A known thermoplastic resin can be used as the thermoplastic resin (b).
- examples thereof include polyolefin resins such as polypropylene and polyethylene, polystyrene resins, polycarbonate resins, polyacetal resins, polyester resins, and polyamide resins.
- a polyolefin resin or a polystyrene resin having a high combined effect with the additive (a) is preferable, and among them, a polyolefin resin is preferable.
- the shape of the thermoplastic resin (b) is preferably a column and a pellet having a total length of 2 to 10 mm.
- polypropylene for example, polypropylene (PP), high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), poly-1-butene, polyisobutylene, ethylene-propylene random Copolymer or block copolymer, ethylene-propylene-1-butene random copolymer or block copolymer, ethylene-propylene-diene terpolymer, copolymer of ethylene or propylene and cyclopentadiene, Random copolymer or block copolymer added with a vinyl monomer such as vinyl acetate, methacrylic acid ester, acrylic acid ester, aromatic vinyl monomer, etc. of 50% by mass or less based on ethylene or propylene Or a graft polymer etc. are mentioned.
- thermoplastic resins (b) may be used alone or in combination of two or more.
- the material to be kneaded by the biaxial kneader further includes a thermoplastic resin modifier (c) in addition to the additive (a) and the thermoplastic resin (b).
- the thermoplastic resin modifier (c) is a modifier that imparts further functions to the thermoplastic resin (b).
- a known thermoplastic resin modifier can be used as the thermoplastic resin modifier (c).
- the thermoplastic resin modifier (c) include a dispersant, a crystal nucleating agent, a stabilizer, and a lubricant. These thermoplastic resin modifiers (c) may be used alone or in combination of two or more.
- Examples of the dispersant include alkyl (meth) acrylate polymers, acid-modified polyolefin resins, and acid-modified waxes. From the viewpoint of dispersibility improving ability, alkyl (meth) acrylate polymers are preferred. Examples of alkyl (meth) acrylate polymers include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, n-butyl (meth) acrylate, iso-butyl (meth) acrylate, and t-butyl (meth).
- Examples thereof include single or two or more types of copolymers mainly composed of monomers such as acrylate, n-hexyl (meth) acrylate, cyclohexyl (meth) acrylate, and 2-ethyl-hexyl (meth) acrylate.
- monomers such as acrylate, n-hexyl (meth) acrylate, cyclohexyl (meth) acrylate, and 2-ethyl-hexyl (meth) acrylate.
- an alkyl (meth) acrylate polymer having an alkyl group having 4 carbon atoms is preferable
- an iso-butyl (meth) acrylate polymer is more preferable.
- These may use only 1 type and may use 2 or more types together.
- “(meth) acrylate” means “acrylate or methacrylate”.
- the crystal nucleating agent is not particularly limited as long as it is generally used as a crystal nucleating agent for polyolefin resins.
- Examples of the crystal nucleating agent include sorbitol compounds shown below.
- sorbitol compounds include 1,3,2,4-dibenzylidene sorbitol, 1,3,2,4-bis (4-methylbenzylidene) sorbitol, 1,3,2,4-bis (4-ethyl).
- Stabilizers include pentaerythrityl-tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], triethylene glycol-bis [3- (3-t-butyl-5- Phenolic antioxidants such as methyl-4-hydroxyphenyl) propionate]; Phosphorous antioxidants such as tris (monononylphenyl) phosphite, tris (2,4-di-t-butylphenyl) phosphite; Sulfur-based antioxidants such as lauryl thiodipropionate; hindered amines such as “Tinuvin-770” (trade name, manufactured by Ciba Japan), “Adekastab LA-57” (trade name, manufactured by ADEKA) Light stabilizer, “Tinuvin 1577FF” (trade name, manufactured by Ciba Japan Co., Ltd.), “Adeka Stub LA-32” (quotient) Name, include ultraviolet absorbers such
- lubricant examples include lauric acid, palmitic acid, oleic acid or stearic acid sodium salt, calcium salt, or magnesium salt. These lubricants may be used individually by 1 type, and may use 2 or more types together.
- thermoplastic resin modifier (c) is preferably one that can be melted at the extrusion temperature. If the thermoplastic resin modifier (c) does not melt inside the twin-screw extruder, it is difficult to separate the air entrained when the material is supplied and let it escape from the opening.
- the material in the present invention includes an additive (a) and a thermoplastic resin (b), and optionally includes a thermoplastic resin modifier (c).
- the material is fed to a twin screw extruder.
- the composition ratio of the additive (a), the thermoplastic resin (b), and the thermoplastic resin modifier (c) in the material is the same as that of the additive (a), the thermoplastic resin (b), and the thermoplastic resin modifier. It can be set as appropriate according to the type of agent (c) and the degree of demand.
- the content of the additive (a) is 50 to 95% by mass in a total of 100% by mass of the additive (a), the thermoplastic resin (b) and the thermoplastic resin modifier (c).
- the content of the thermoplastic resin (b) is preferably 50 to 5% by mass, and the content of the thermoplastic resin modifier (c) is preferably 0 to 45% by mass.
- the content of the additive (a) is 55 to 90% by mass, the content of the thermoplastic resin (b) is 45 to 10% by mass, and the content of the modifier for thermoplastic resin (c) is 0 to 20% by mass. It is more preferable that The content of the additive (a) is 60 to 80% by mass, the content of the thermoplastic resin (b) is 40 to 20% by mass, and the content of the modifier for thermoplastic resin (c) is 0 to 10% by mass. More preferably. The content of the additive (a) is 65 to 75% by mass, the content of the thermoplastic resin (b) is 35 to 25% by mass, and the content of the modifier for thermoplastic resin (c) is 0 to 10% by mass. It is particularly preferred that
- the additive (a) when the additive (a) is in the form of fine powder, when the content of the additive (a) is high, a problem of material biting is likely to occur in the supply unit. In addition, when the additive (a) is a material that does not melt at the extrusion temperature, extrusion is facilitated if the content of the additive (a) is 95% by mass or less.
- the material may be a plasticizer, an antistatic agent, an antibacterial agent, a deodorizing agent, a deodorizing agent, or a mixture thereof. Can be contained.
- kneading refers to kneading using a twin screw extruder as described below
- resin kneaded material refers to a kneaded material obtained by kneading materials.
- twin screw extruder used in the method according to the present invention will be described.
- twin-screw extruder include a co-rotation type, a different-direction type, an incomplete meshing type, and the like. From the viewpoint of excellent extrusion capability, a co-rotation twin-screw extruder is preferable.
- Examples of the same direction type include a single screw type, a double screw type, and a triple screw type.
- Examples of the different direction type include a parallel axis type and an oblique axis type.
- FIG. 1 shows a schematic diagram of a twin-screw extruder which is one embodiment of the present invention.
- the twin screw extruder according to the present invention is not limited to this.
- the twin screw extruder shown in FIG. 1 exists between a supply port 1 for supplying materials, a discharge port 2 for discharging a resin kneaded material kneaded inside the twin screw extruder, and between the supply port 1 and the discharge port 2.
- An opening 3 is provided.
- the twin-screw extruder shown in FIG. 1 includes one opening 3, but may include two or more openings 3, and in that case, all are regarded as the openings 3.
- the thermoplastic resin (b) and, if necessary, the thermoplastic resin modifier (c) are not sufficiently melted and mixed.
- the opening 3 in a state where the material is not melted or the additive (a), the thermoplastic resin (b) and, if necessary, the thermoplastic resin modifier (c) are not sufficiently melted and mixed.
- material will blow up from the opening part 3 easily. Therefore, even if the material in the barrel reaches the opening 3 in a completely unmelted state, only air cannot be separated and discharged. In order to separate and discharge only air, the material must be melted and mixed to some extent before reaching the opening 3. In particular, when there are a plurality of openings 3, this problem occurs at the opening 3 closest to the supply port 1.
- the opening 3 may be open to the atmosphere or vacuumed, but the opening 3 closest to the supply port 1 is preferably open to the atmosphere.
- the twin-screw extruder shown in FIG. 1 includes a kneading part A between the supply port 1 and the opening 3. This is because the material is melted and mixed to some extent before the material reaches the opening 3.
- the kneading part A refers to a part where a screw having kneading ability such as a kneading disk is present.
- a screw having a kneading ability refers to a screw capable of kneading a material mainly by a shearing action.
- the twin-screw extruder shown in FIG. 1 is provided with one kneading part A, two or more kneading parts A may be provided.
- the materials are kneaded in the kneading part A provided between the supply port 1 and the opening 3 without completely filling the material. Therefore, in the kneading part A, it is preferable to use a screw combination having a feeding action that does not completely fill the material.
- the full filling described here refers to a state where the filling rate ( ⁇ ) defined as the volume ratio of the material in the internal space of the extruder is 1. At this time, even if the material is a solid, a melt, or a mixed state thereof, it can be handled in the same manner.
- ⁇ the filling rate defined as the volume ratio of the material in the internal space of the extruder
- the kneading part A in addition to not providing an area where the material is completely filled, it is preferable to perform melting or kneading without providing a pressure increasing region that gives strong compression to the material. In the case where the zone or the pressure increasing zone exists, the air does not reach the opening 3 but flows back to the supply port 1, so that the material cannot be supplied to the supply port 1, and the extrusion amount may decrease (feed neck phenomenon). Because. In addition, even when the material partially expands due to heating and the inside of the screw is substantially completely filled with the material, it is considered to be full.
- the screw used in the kneading part A is preferably made of a screw having a kneading action in the positive direction with respect to the extrusion direction. This is because the material may be completely filled when a screw reverse to the extrusion direction or a neutral screw is used.
- the screw having a kneading action in the positive direction with respect to the extrusion direction refers to a screw having a kneading action for transporting the material in the extrusion direction when the screw is rotated.
- Typical examples of the screw include a positive kneading disk and a positive mixing screw. In particular, it is preferable to use a positive kneading disk.
- the ratio La / D between the length La of the kneading part A and the screw diameter D is L1, L1 ⁇ 3 from the viewpoint of sufficiently melting the material.
- L1 ⁇ 4 is preferable, and L1 ⁇ 6 is more preferable.
- 100 ⁇ L1 is preferable, 50 ⁇ L1 is more preferable, 30 ⁇ L1 is further preferable, and 20 ⁇ L1 is particularly preferable. If L1 is too long, the manufacturing cost of the apparatus increases and an installation space is required.
- the screw diameter D is the same size in the whole twin screw extruder, and the screw diameters of the two screws are also the same size.
- the twin screw extruder shown in FIG. 1 includes a kneading part B between the opening 3 and the discharge port 2 in order to sufficiently knead the material.
- the kneading part B is a part where a screw having kneading ability such as a kneading disk is present.
- a screw used in the kneading part B a plurality of kneading disks or the like can be used in combination. In this kneading part B, even if the material is completely filled or not fully filled, it does not affect the increase or decrease in the amount of extrusion, so a screw that can sufficiently knead the material can be selected. .
- Examples of the screw used in the kneading part B include a screw combining a kneading disk, a mixing screw, a low task screw, and the like in the forward direction, neutral and reverse directions.
- the twin-screw extruder shown in FIG. 1 is provided with one kneading part B, you may provide two or more kneading parts B.
- FIG. In the case of including a plurality of openings 3 and a plurality of kneading sections, one or more kneading sections disposed between the opening 3 and the discharge port 2 closest to the supply port 1 side are kneaded with the kneading section B. I reckon.
- the arrangement location of the kneading part B is not particularly limited as long as it is between the opening 3 and the discharge port 2 closest to the supply port 1 side.
- L3 ⁇ 5 from the viewpoint of sufficiently kneading the material. Further, it is more preferable that L3 ⁇ 5 by combining the kneading discs in the forward direction, neutral direction and reverse direction. Furthermore, it is more preferable that L3 ⁇ 7. Further, 100 ⁇ L3 is preferable, 50 ⁇ L3 is more preferable, 30 ⁇ L3 is further preferable, and 20 ⁇ L3 is particularly preferable. If L3 is too long, the manufacturing cost of the apparatus increases and installation space is required. However, when a plurality of kneading parts B are provided, the total length of the plurality of kneading parts B is Lc.
- a screw having kneading ability is arranged in the kneading part B.
- the position closest to the supply port 1 of the screw having the kneading ability, that is, the position where the material first enters the kneading part B is defined as the starting position of the kneading part B.
- L2 ⁇ 3 when the ratio Lb / D between the length Lb from the opening 3 to the start position of the kneading part B and the screw diameter D is L2, from the viewpoint of preventing vent-up at the opening 3, L2 ⁇ 3 is preferred. More preferably, L2 ⁇ 6, and even more preferably L2 ⁇ 10. Further, 100 ⁇ L2 is preferable, 50 ⁇ L2 is more preferable, 30 ⁇ L2 is further preferable, and 20 ⁇ L2 is particularly preferable. If L2 is too long, the manufacturing cost of the apparatus increases and installation space is required.
- the length Lb from the opening 3 to the start position of the kneading part B is the kneading part B5 from the end position of the opening 3 with respect to the resin traveling direction. Indicates the length to the start position.
- the length between the opening position of the kneading part B closest to the opening 3 and the opening 3 is Lb.
- the starting position of the kneading part B closest to the opening 3 closest to the supply port 1 side and the opening closest to the supply port 1 side is Lb.
- a screw having no kneading action is selected.
- a typical screw is a full flight screw in the positive direction.
- the extrusion temperature can be appropriately set according to the types of the additive (a), the thermoplastic resin (b) and the thermoplastic resin modifier (c) added as necessary.
- the extrusion temperature at which the thermoplastic resin (b) and the thermoplastic resin modifier (c) added as necessary can be melted is preferably 160 to 280 ° C., more preferably 180 to 240 ° C. preferable.
- the extrusion temperature may be set to the same temperature for the entire twin-screw extruder, or may be partially changed.
- the raw material supply port which supplies a material to the supply port 1 since material may melt
- the resin kneaded material discharged from the discharge port 2 of the twin screw extruder can be appropriately processed as necessary.
- the resin kneaded product may be cooled and pulverized after being discharged in a fixed shape, and a general pellet forming means may be employed.
- a masterbatch it is preferably formed into a pellet.
- molding in a pellet form It is preferable to extrude a resin composition from a die
- the resin kneaded product produced by the method according to the present invention can be used for a sheet material such as an optical sheet, a film material such as a food film, a member for automobile, a member for home appliance, a medical member, a building member and the like.
- thermoplastic resin modifier (c) Preparation of thermoplastic resin modifier (c)
- a separable flask equipped with a thermometer, a nitrogen introducing tube, a cooling tube and a stirrer 225 parts of ion-exchanged water, 2.5 parts of sodium dodecylbenzenesulfonate and 0.0002 part of iron (II) sulfate as an emulsifier, ethylenediaminetetraacetic acid 0.0006 part of disodium and 0.48 part of ascorbic acid were charged, and the inside of the container was replaced with nitrogen.
- II iron
- the internal temperature was raised to 73 ° C., and 0.2 parts of cumene hydroperoxide as a polymerization catalyst and 98 parts of isobutyl methacrylate and 1.0 part of normal butyl acrylate containing 1.0 part of normal octyl mercaptan as a chain transfer agent were used.
- the monomer mixture was added dropwise over 1 hour. Furthermore, it hold
- the latex had a weight average molecular weight of 30,000.
- the latex was cooled to room temperature and dropped into 70 ° C. warm water containing 5 parts of calcium acetate. Then, it heated up to 90 degreeC and coagulated. The obtained coagulated product was separated and washed, and then dried at 60 ° C. for 12 hours to obtain a modifier.
- This modifier is referred to as “dispersant (1)”.
- thermoplastic resin modifier (e) As an additive (a), a phosphate flame retardant “ADEKA STAB FP-2100J” (trade name, manufactured by ADEKA Corporation, volume average particle size of 10 ⁇ m or less, bulk specific gravity 0.3 to 0.5, no melting point) ( (Hereinafter referred to as “flame retardant”). As the thermoplastic resin (b), polypropylene resin pellets “Novatec PP FL203D” (trade name, manufactured by Nippon Polypro Co., Ltd., melt flow rate 3 g / 10 min) (hereinafter referred to as “PP”) were used. The dispersant (1) was used as the thermoplastic resin modifier (c).
- ADEKA STAB FP-2100J trade name, manufactured by ADEKA Corporation, volume average particle size of 10 ⁇ m or less, bulk specific gravity 0.3 to 0.5, no melting point
- flame retardant As the thermoplastic resin (b), polypropylene resin pellets “Novatec PP FL203D” (trade name, manufactured by Nippon Polypro Co
- the additive (a), the thermoplastic resin (b), and the thermoplastic resin modifier (c) are supplied to the supply port 1 of the twin screw extruder shown in FIG. 1 while being controlled using a feeder. Kneaded.
- the supply amount of each material was 70% by mass of additive (a), 20% by mass of thermoplastic resin (b), and 10% by mass of modifier for thermoplastic resin (c).
- twin screw extruder As the twin screw extruder, the same direction twin screw extruder TEM-26SS (product name, manufactured by Toshiba Machine Co., Ltd., screw diameter D26 mm, L / D: 64.6) was used.
- the twin-screw extruder has a basic configuration of a supply port 1-a kneading part A-an opening part 3-a kneading part B-a discharge port 2 shown in FIG.
- CE-T-1 type (model name, manufactured by Kubota Corporation) was used for the feeder (1) to the supply port 1.
- the feeder (1) was supplied with the additive (a) and the thermoplastic resin modifier (c).
- the additive (a) and the thermoplastic resin modifier (c) were hand-blended in advance at a predetermined ratio and supplied.
- thermoplastic resin (b) was supplied to the feeder (2).
- the cylinder temperature where the supply port 1 was installed was set to 30 ° C, and all other cylinder temperatures were set to 180 ° C.
- the head temperature was 180 ° C.
- the screw rotation speed was 200 rpm.
- Table 1 shows the details of each screw element constituting the screw block.
- the screw elements R1, R2, R3 and F are screws that are not completely filled
- the screw elements N and L are screws that are completely filled.
- the screw block in the kneading part A was composed of R1, R1, R1, R1, R1, and R3 (in order from the left to the supply port 1).
- the screw block in the kneading part B was composed of R2, R2, N, L, and L (in order from the left to the supply port 1).
- Vent up at opening 3 The vent-up at the opening 3 was evaluated according to the following criteria. A: Vent-up is not observed in the opening 3 for 5 minutes or more after reaching the predetermined extrusion conditions, and stable operation is possible. B: Vent up is observed in the opening 3 in less than 5 minutes after reaching the predetermined extrusion condition.
- Table 2 shows the implementation conditions for this example.
- Table 3 shows the evaluation results of the material ejection at the opening 3, the vent-up at the opening 3, and the total throughput.
- the total processing amount is the total amount of the additive (a), the thermoplastic resin (b) and the thermoplastic resin modifier (c) supplied to the twin-screw extruder per unit time.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 3-2 The same procedure as in Example 3-1 was performed, except that the thermoplastic resin modifier (c) was not used and the amount of the thermoplastic resin (b) supplied was 30 mass%.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- thermoplastic resin (b) polystyrene resin pellets “Toyostyrene GP G200C” (manufactured by Toyo Styrene Co., Ltd., melt flow rate 8.5 g / 10 min) (hereinafter referred to as “PS”) were used. Moreover, the supply amount of the additive (a) was 66 mass%, and the supply amount of the thermoplastic resin (b) was 34 mass%. Other than that was carried out similarly to Example 3-2. The implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 5-1 As an additive (a), a filler “general-purpose talc MS” (trade name, manufactured by Nippon Talc Co., Ltd., volume average particle diameter 14 ⁇ m, bulk specific gravity 0.35, melting point 1500 ° C.) (hereinafter referred to as “talc”) The same procedure as in Example 3-2 was carried out except that it was used. The implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 5-2 The same procedure as in Example 5-1 was performed except that the supply amount of the additive (a) was 80% by mass and the supply amount of the thermoplastic resin (b) was 20% by mass.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 5-3 The same procedure as in Example 5-1 was conducted, except that the thermoplastic resin (b) was supplied in an amount of 25% by mass and the dispersant (1) was supplied in an amount of 5% by mass as the thermoplastic resin modifier (c).
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 6-1 The same procedure as in Example 5-1 was performed except that the supply amount of the additive (a) was 66% by mass and that 34% by mass of PS was supplied as the thermoplastic resin (b).
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 6-2 The same procedure as in Example 5-1 was performed except that PS was used as the thermoplastic resin (b). The implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- Example 6-3 The same procedure as in Example 6-1 was conducted, except that the supply amount of the additive (a) was 80 mass% and the supply amount of the thermoplastic resin (b) was 20 mass%.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
- the implementation conditions are shown in Table 2, and the evaluation results are shown in Table 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
L1≧3
を満たし、混練部Aで前記材料を完全充満させずに混練し、かつ混練部Bで前記材料を混練する樹脂混練物の製造方法。
L2≧3
を満たす[1]記載の樹脂混練物の製造方法。
L1≧3
を満たし、混練部Aで前記材料を完全充満させずに混練し、かつ混練部Bで前記材料を混練する。
添加剤(a)としては、特に限定はされないが、例えば難燃剤、顔料、充填剤、難燃助剤等の無機添加剤が挙げられる。この中でも、形状が微粉体であることが多い難燃剤又は充填剤が本発明に係る方法においてより有効であるため好ましい。これらの添加剤(a)は、1種類を単独で用いてもよく、2種類以上を併用してもよい。
熱可塑性樹脂(b)としては、公知の熱可塑性樹脂を用いることができる。例えば、ポリプロピレン、ポリエチレン等のポリオレフィン樹脂、ポリスチレン樹脂、ポリカーボネート樹脂、ポリアセタール樹脂、ポリエステル樹脂、ポリアミド樹脂等が挙げられる。これらの樹脂の中でも、添加剤(a)との併用効果が高いポリオレフィン樹脂またはポリスチレン樹脂が好ましく、中でもポリオレフィン樹脂が好ましい。微粉状の添加剤(a)と混練が十分になされる点で、熱可塑性樹脂(b)の形状は、円柱状で全長が2~10mmのペレットが好ましい。
本発明に係る方法において、二軸混練機で混練する材料は、添加剤(a)と熱可塑性樹脂(b)以外に、さらに熱可塑性樹脂用改質剤(c)を含むことが好ましい。熱可塑性樹脂用改質剤(c)は、熱可塑性樹脂(b)にさらなる機能を付与させる改質剤である。熱可塑性樹脂用改質剤(c)としては、公知の熱可塑性樹脂用改質剤を用いることができる。熱可塑性樹脂用改質剤(c)としては、例えば分散剤、結晶核剤、安定化剤、滑剤等が挙げられる。これらの熱可塑性樹脂用改質剤(c)は、一種のみを用いてもよく、二種以上を併用してもよい。
本発明における材料は、添加剤(a)および熱可塑性樹脂(b)を含み、必要に応じて熱可塑性樹脂用改質剤(c)を含む。該材料は二軸押出機へ供給される。
本発明において混練とは、以下に示すような二軸押出機を使用した混練を示し、樹脂混練物とは材料を混練することによって得られる混練物を示す。
(熱可塑性樹脂用改質剤(c)の調製)
温度計、窒素導入管、冷却管及び攪拌装置を備えたセパラブルフラスコにイオン交換水225部、乳化剤としてドデシルベンゼンスルホン酸ナトリウム2.5部および硫酸鉄(II)0.0002部、エチレンジアミン四酢酸二ナトリウム0.0006部、アスコルビン酸0.48部を仕込み、容器内を窒素置換した。次いで、内温を73℃まで昇温し、重合触媒としてクメンハイドロパーオキサイドを0.2部、連鎖移動剤としてノルマルオクチルメルカプタン1.0部を含むイソブチルメタクリレート98部、ノルマルブチルアクリレート2部の単量体混合物を1時間かけて滴下した。さらに同温で1時間保持してアルキル(メタ)アクリレート系重合体ラテックスを得た。このラテックスの質量平均分子量は30,000であった。
添加剤(a)として、リン酸塩系難燃剤「アデカスタブ FP-2100J」(商品名、(株)ADEKA製、体積平均粒子径10μm以下、かさ比重0.3~0.5、融点なし)(以下「難燃剤」と表記)を用いた。熱可塑性樹脂(b)として、ポリプロピレン樹脂ペレット「ノバテックPP FL203D」(商品名、日本ポリプロ(株)製、メルトフローレート3g/10分)(以下「PP」と表記)を用いた。熱可塑性樹脂用改質剤(c)として、前記分散剤(1)を用いた。
開口部3での材料の噴き出しは以下の基準で評価した。
A:開口部3において材料が溶融してまとまっており、開口部3から材料が噴き出さない状態で安定して運転できる。
B:開口部3において材料の一部が未溶融の状態で存在し、開口部3から材料が噴き出す。
開口部3でのベントアップを以下の基準で評価した。
A:所定の押出条件に達した後5分間以上、開口部3においてベントアップが観察されず、安定して運転できる。
B:所定の押出条件に達した後5分間未満で開口部3においてベントアップが観察される。
混練部Aにおけるスクリュブロックを、R1・R1・R1・R1・R1・R1(左から供給口1に近い順番)で構成し、L1=6、L2=6とした以外は実施例1-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
L2=10とした以外は実施例1-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
熱可塑性樹脂用改質剤(c)を用いず、熱可塑性樹脂(b)の供給量を30質量%とした以外は実施例3-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
熱可塑性樹脂(b)として、ポリスチレン樹脂ペレット「トーヨースチロールGP G200C」(東洋スチレン(株)製、メルトフローレート8.5g/10分)(以下「PS」と表記)を用いた。また、添加剤(a)の供給量を66質量%とし、熱可塑性樹脂(b)の供給量を34質量%とした。それ以外は実施例3-2と同様に行った。実施条件を表2に、評価結果を表3に示す。
添加剤(a)として、充填剤「汎用タルク MS」(商品名、(株)日本タルク製、体積平均粒子径14μm、かさ比重0.35、融点1500℃)(以下「タルク」と表記)を用いた以外は実施例3-2と同様に行った。実施条件を表2に、評価結果を表3に示す。
添加剤(a)の供給量を80質量%とし、熱可塑性樹脂(b)の供給量を20質量%とした以外は実施例5-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
熱可塑性樹脂(b)の供給量を25質量%とし、熱可塑性樹脂用改質剤(c)として分散剤(1)を5質量%供給した以外は実施例5-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
添加剤(a)の供給量を66質量%とし、熱可塑性樹脂(b)としてPSを34質量%供給した以外は実施例5-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
熱可塑性樹脂(b)としてPSを用いた以外は実施例5-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
添加剤(a)の供給量を80質量%とし、熱可塑性樹脂(b)の供給量を20質量%供給した以外は実施例6-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
混練部Aにおけるスクリュブロックを、R1・R1・R1・R1(左から供給口1に近い順番)で構成し、L1=4とした以外は実施例6-2と同様に行った。実施条件を表2に、評価結果を表3に示す。
混練部AにおけるスクリュブロックをR3で構成し、L1=0.75、L2=2とした以外は実施例5-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
混練部AにおけるスクリュブロックをR3で構成し、L1=0.75とした以外は実施例5-1と同様に行った。実施条件を表2に、評価結果を表3に示す。
2 吐出口
3 開口部
4 混練部A
5 混練部B
Claims (10)
- 添加剤(a)と熱可塑性樹脂(b)とを含む材料を二軸押出機を使用して混練する樹脂混練物の製造方法であって、二軸押出機が、供給口と、吐出口と、該供給口と該吐出口との間に存在する開口部と、該供給口と該開口部との間に存在する混練部Aと、該開口部と該吐出口との間に存在する混練部Bとを備え、該混練部Aの長さLaとスクリュ径Dとの比L1(La/D)が、
L1≧3
を満たし、混練部Aで前記材料を完全充満させずに混練し、かつ混練部Bで前記材料を混練する樹脂混練物の製造方法。 - 開口部から混練部Bの開始位置までの長さLbとスクリュ径Dとの比L2(Lb/D)が、
L2≧3
を満たす請求項1記載の樹脂混練物の製造方法。 - 前記混練部Aで使用されるスクリュが、正方向のニーディングディスク、および正方向のミキシングスクリュの1種以上である請求項1記載の樹脂混練物の製造方法。
- 前記添加剤(a)の体積平均粒子径が0.6~100μmである請求項1記載の樹脂混練物の製造方法。
- 前記添加剤(a)のかさ比重が0.08~0.6である請求項1記載の樹脂混練物の製造方法。
- 前記添加剤(a)が難燃剤または充填剤である請求項1記載の樹脂混練物の製造方法。
- 前記添加剤(a)がリン酸塩系難燃剤である請求項6に記載の樹脂混練物の製造方法。
- 前記熱可塑性樹脂(b)がポリオレフィン樹脂またはポリスチレン樹脂である請求項1記載の樹脂混練物の製造方法。
- 前記材料が熱可塑性樹脂用改質剤(c)を含む請求項1記載の樹脂混練物の製造方法。
- 前記熱可塑性樹脂用改質剤(c)がアルキル(メタ)アクリレート系ポリマーである請求項9に記載の樹脂混練物の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013507482A JP6064899B2 (ja) | 2012-02-07 | 2013-02-06 | 樹脂混練物の製造方法 |
EP13747025.8A EP2813334A4 (en) | 2012-02-07 | 2013-02-06 | METHOD FOR MANUFACTURING RESIN MIXTURE |
CN201380008485.2A CN104105580A (zh) | 2012-02-07 | 2013-02-06 | 树脂混炼物的制造方法 |
US14/373,467 US9108171B2 (en) | 2012-02-07 | 2013-02-06 | Method of manufacturing resin kneaded product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012024002 | 2012-02-07 | ||
JP2012-024002 | 2012-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013118763A1 true WO2013118763A1 (ja) | 2013-08-15 |
Family
ID=48947524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/052708 WO2013118763A1 (ja) | 2012-02-07 | 2013-02-06 | 樹脂混練物の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9108171B2 (ja) |
EP (1) | EP2813334A4 (ja) |
JP (1) | JP6064899B2 (ja) |
CN (1) | CN104105580A (ja) |
WO (1) | WO2013118763A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016003248A (ja) * | 2014-06-13 | 2016-01-12 | 株式会社Adeka | 難燃剤組成物及び難燃性合成樹脂組成物 |
WO2018025703A1 (ja) * | 2016-08-05 | 2018-02-08 | 花王株式会社 | 三次元造形用可溶性材料の製造方法 |
JP2018024849A (ja) * | 2016-08-05 | 2018-02-15 | 花王株式会社 | 三次元造形用可溶性材料の製造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017171666A1 (en) * | 2016-03-29 | 2017-10-05 | Ptt Global Chemical Public Company Limited | A method for preparing a blend composition of flour and polyolefin |
CN113969057A (zh) * | 2021-10-27 | 2022-01-25 | 金旸(厦门)新材料科技有限公司 | 一种膦酸盐阻燃体系聚酰胺材料及其制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH021650B2 (ja) | 1981-08-13 | 1990-01-12 | Toshiba Machine Co Ltd | |
JPH03247435A (ja) * | 1990-02-26 | 1991-11-05 | Aisin Seiki Co Ltd | 軟質塩ビ製成形品の製法 |
JPH1034730A (ja) * | 1996-07-24 | 1998-02-10 | Toshiba Mach Co Ltd | 同方向回転2軸押出機による高融点樹脂の脱水システム |
JPH10235636A (ja) * | 1997-02-21 | 1998-09-08 | Nippon G Ii Plast Kk | 2軸連続式混練機による木質系樹脂組成物の製造方法 |
JP2002047403A (ja) * | 2000-08-01 | 2002-02-12 | Unitika Ltd | 樹脂組成物及びその製造方法 |
JP2008238626A (ja) * | 2007-03-28 | 2008-10-09 | Toray Ind Inc | 熱可塑性樹脂組成物の製造方法 |
JP2010105285A (ja) * | 2008-10-30 | 2010-05-13 | Toray Ind Inc | 粉体原料用押出機および熱可塑性樹脂組成物の製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3843757A (en) * | 1967-11-15 | 1974-10-22 | Hercules Inc | Process for extruding foamed thermoplastics by utilizing an intermeshing co-rotating twin screw extruder |
AU620380B2 (en) | 1988-03-18 | 1992-02-20 | Denso Corporation | Fiber-reinforced polymer composition and method of producing same |
JPH021650A (ja) | 1988-03-31 | 1990-01-05 | Toshiba Corp | データ伝送方式 |
JP3280875B2 (ja) * | 1996-12-27 | 2002-05-13 | 住友化学工業株式会社 | 可塑化装置 |
JP4224894B2 (ja) | 1999-06-04 | 2009-02-18 | チッソ株式会社 | 複合強化ポリオレフィン樹脂組成物の製造方法及びその製造装置 |
JP4901026B2 (ja) * | 2001-06-29 | 2012-03-21 | 株式会社ジェイエスピー | ポリスチレン系樹脂押出発泡板の製造方法及びポリスチレン系樹脂押出発泡板 |
US20070260004A1 (en) * | 2004-09-08 | 2007-11-08 | Japan Polypropylene Corporation | Polypropylene Resin Composition And Process For Producing The Same |
JP5095425B2 (ja) * | 2008-01-23 | 2012-12-12 | 矢崎総業株式会社 | スクリュー式混練機 |
CN102058011B (zh) * | 2010-12-03 | 2013-11-13 | 兰州理工大学 | 一种双螺杆挤出机的螺杆结构 |
JP2012192677A (ja) | 2011-03-17 | 2012-10-11 | Sumitomo Chemical Co Ltd | ポリスルホンペレットの製造方法 |
JP5815257B2 (ja) | 2011-03-24 | 2015-11-17 | 旭化成ケミカルズ株式会社 | 樹脂組成物の製造方法 |
-
2013
- 2013-02-06 WO PCT/JP2013/052708 patent/WO2013118763A1/ja active Application Filing
- 2013-02-06 EP EP13747025.8A patent/EP2813334A4/en not_active Withdrawn
- 2013-02-06 US US14/373,467 patent/US9108171B2/en not_active Expired - Fee Related
- 2013-02-06 JP JP2013507482A patent/JP6064899B2/ja not_active Expired - Fee Related
- 2013-02-06 CN CN201380008485.2A patent/CN104105580A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH021650B2 (ja) | 1981-08-13 | 1990-01-12 | Toshiba Machine Co Ltd | |
JPH03247435A (ja) * | 1990-02-26 | 1991-11-05 | Aisin Seiki Co Ltd | 軟質塩ビ製成形品の製法 |
JPH1034730A (ja) * | 1996-07-24 | 1998-02-10 | Toshiba Mach Co Ltd | 同方向回転2軸押出機による高融点樹脂の脱水システム |
JPH10235636A (ja) * | 1997-02-21 | 1998-09-08 | Nippon G Ii Plast Kk | 2軸連続式混練機による木質系樹脂組成物の製造方法 |
JP2002047403A (ja) * | 2000-08-01 | 2002-02-12 | Unitika Ltd | 樹脂組成物及びその製造方法 |
JP2008238626A (ja) * | 2007-03-28 | 2008-10-09 | Toray Ind Inc | 熱可塑性樹脂組成物の製造方法 |
JP2010105285A (ja) * | 2008-10-30 | 2010-05-13 | Toray Ind Inc | 粉体原料用押出機および熱可塑性樹脂組成物の製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2813334A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016003248A (ja) * | 2014-06-13 | 2016-01-12 | 株式会社Adeka | 難燃剤組成物及び難燃性合成樹脂組成物 |
WO2018025703A1 (ja) * | 2016-08-05 | 2018-02-08 | 花王株式会社 | 三次元造形用可溶性材料の製造方法 |
JP2018024849A (ja) * | 2016-08-05 | 2018-02-15 | 花王株式会社 | 三次元造形用可溶性材料の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN104105580A (zh) | 2014-10-15 |
US20140371368A1 (en) | 2014-12-18 |
JP6064899B2 (ja) | 2017-01-25 |
US9108171B2 (en) | 2015-08-18 |
EP2813334A4 (en) | 2015-07-22 |
JPWO2013118763A1 (ja) | 2015-05-11 |
EP2813334A1 (en) | 2014-12-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6064899B2 (ja) | 樹脂混練物の製造方法 | |
US7029750B2 (en) | Thermoplastic resin composition and production method thereof | |
US8349938B2 (en) | Process for making polyolefin compositions | |
KR980009369A (ko) | 폴리테트라플루오로에틸렌-함유 분말 혼합물, 그것을 함유한 열가소성 수지 조성물 및 그것으로 제조된 성형체 | |
WO2012084865A1 (de) | Verfahren zur verbesserung der russdispergierung | |
KR101484829B1 (ko) | 폴리올레핀계 수지용 첨가제를 위한 분산제, 폴리올레핀계 수지 조성물 및 성형체 | |
JPH10180841A (ja) | 粉体のサイドフィード用押出機及びそれを用いた押出方法 | |
US9487647B2 (en) | Low viscosity polymer mixture | |
EP2534193B1 (de) | Verwendung von mischungen zur herstellung schlagzähmodifizierter thermoplastischer zusammensetzungen | |
EP1328394A1 (de) | Mischvorrichtung und verfahren zur herstellung von thermoplastisch verarbeitbaren formmassen, insbesondere additivbatches | |
KR101456203B1 (ko) | 미세 지분 함유 수지조성물의 제조방법 | |
JP6992695B2 (ja) | 硬質ポリ塩化ビニル系成形品及びその製造方法 | |
KR101475945B1 (ko) | 미세 지분 함유 수지조성물의 제조방법 | |
JP5308207B2 (ja) | 異形押出用ポリオレフィン系樹脂組成物及び異形押出成形品 | |
US6716923B1 (en) | Resin composition for powder molding | |
JP5759279B2 (ja) | 粉体フィラーのブレンド方法 | |
JP3619074B2 (ja) | 熱可塑性樹脂成形体の製造方法 | |
JP3914840B2 (ja) | 混練押出機 | |
WO2020162488A1 (ja) | 熱可塑性樹脂組成物の成形機、および製造方法、ならびに複合樹脂組成物の成形品の製造方法、射出成形品 | |
JP7215942B2 (ja) | サイドフィーダー、押出機、および熱可塑性樹脂組成物の製造方法 | |
JP2016043654A (ja) | 樹脂組成物の製造方法 | |
JP2015203111A (ja) | ガラスウール複合熱可塑性樹脂組成物及びその製造法、成形物。 | |
JP2004181954A (ja) | 混練押出機及びそれを用いて製造したマスターバッチ | |
TWI476239B (zh) | 低黏度聚合物混合物 | |
JP2001328116A (ja) | 改質剤マスターバッチ製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2013507482 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13747025 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14373467 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013747025 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |