WO2015093450A1 - Particules de talc et composition de polymère organique les comprenant - Google Patents

Particules de talc et composition de polymère organique les comprenant Download PDF

Info

Publication number
WO2015093450A1
WO2015093450A1 PCT/JP2014/083170 JP2014083170W WO2015093450A1 WO 2015093450 A1 WO2015093450 A1 WO 2015093450A1 JP 2014083170 W JP2014083170 W JP 2014083170W WO 2015093450 A1 WO2015093450 A1 WO 2015093450A1
Authority
WO
WIPO (PCT)
Prior art keywords
talc particles
organic polymer
talc
polymer composition
particles
Prior art date
Application number
PCT/JP2014/083170
Other languages
English (en)
Japanese (ja)
Inventor
昌宏 図子
収二郎 矢野
忠孝 樋田
亮壮 佐伯
Original Assignee
株式会社勝光山鉱業所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社勝光山鉱業所 filed Critical 株式会社勝光山鉱業所
Publication of WO2015093450A1 publication Critical patent/WO2015093450A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/22—Magnesium silicates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/90—Other morphology not specified above

Definitions

  • the present invention relates to talc particles (talc powder) and an organic polymer composition containing the same.
  • Talc particles are hydrous magnesium silicate particles (powder) having a plate-like crystal structure obtained by pulverizing talc, which is the softest mineral and specified as the standard of Mohs hardness 1, and has the formula: “Mg 3 Si 4 O 10 (OH) 2 ”.
  • Talc particles have excellent heat resistance and are chemically stable, so they are used in various applications such as organic polymers such as plastics and rubber, papermaking, paints, pharmaceuticals, cosmetics, ceramics, agricultural chemicals and fertilizers. Yes.
  • talc particles When talc particles are blended with thermoplastic polymers such as thermoplastic resins and thermoplastic elastomers, rigidity is improved, creep resistance is improved, heat resistance is improved, electrical insulation is improved, mold release is improved, and molding shrinkage is reduced.
  • talc has been effective in improving the mechanical properties such as impact resistance and tensile strength depending on the type and composition of the thermoplastic polymer. Is widely used in the plastics field. For example, when a polypropylene composition containing talc particles is used, a molded product having high rigidity, high high temperature creep resistance, good surface finish, and excellent lightness can be obtained with good moldability and low molding shrinkage.
  • Propylene compositions formulated with talc are widely used in the automotive industry as automotive bumpers, instrument panels, door trims, fan covers, heater housings, ducts and the like.
  • Talc of 5 ⁇ m or less has been widely used (see, for example, the example of Patent Document 1 and paragraph [0011] of Patent Document 2).
  • talc with a small average particle size and low bulk density is compressed, deaerated to increase the bulk density, and is packed, stored, and transported, and the average particle size is smaller.
  • the smaller the bulk density the higher the degree of compression.
  • compressed and degassed talc when blended with organic polymers, etc., is partially agglomerated and not separated into individual primary particles, but uniformly mixed and dispersed in the organic polymer The problem of not being likely to occur.
  • talc having a small average particle diameter is likely to cause agglomeration by aggregation of talc particles itself even when compression treatment for increasing the bulk density is not performed.
  • the talc with agglomerates clogged in the hopper when it is fed from the hopper to the organic polymer, and the productivity is increased by increasing the processing time required to uniformly mix and disperse the talc particles in the organic polymer.
  • the productivity is increased by increasing the processing time required to uniformly mix and disperse the talc particles in the organic polymer.
  • the talc particles in the organic polymer composition without being completely separated into individual talc particles (primary particles). If the talc aggregate is contained in the organic polymer composition, clogging of the filter provided in the mixing device, kneading device, molding device, etc., generation of quality spots and fragile parts in the molded product obtained by molding This causes various problems.
  • the object of the present invention is that there is no aggregation of particles, clogging with a hopper, clogging of a filter provided in a mixing device, a kneading device, a molding device, etc., and no extra time is spent in an organic polymer.
  • Talc particles that can be uniformly mixed and dispersed in the product, and when the talc particles are blended with an organic polymer composition to produce a molded product, the molding shrinkage rate is reduced and good dimensional stability is achieved.
  • Talc particles that are excellent in mechanical properties such as flexural strength, flexural modulus, impact strength, hardness, heat resistance, surface condition, electrical insulation, etc. It is to provide an organic polymer composition containing particles.
  • the average particle diameter (D50) (median diameter) obtained by determining the average particle diameter and particle size distribution of talc from the volume cumulative distribution curve by a laser diffraction / scattering particle size distribution measuring apparatus is more than 5 ⁇ m and not more than 12 ⁇ m;
  • the ratio (D90 / D10) of the particle size (D90) at which the volume accumulation degree obtained from the volume accumulation distribution curve is 90% and the particle size (D10) at which the volume accumulation degree is 10% is 5 or less, Aggregation of talc particles, clogging with a hopper, clogging of filters and screens provided in mixing devices, kneading devices, molding devices, etc.
  • the present invention was completed by finding that a molded product having excellent other mechanical properties such as impact strength and hardness and excellent properties such as heat resistance, surface condition and electrical insulation can be obtained.
  • the present invention (1) The average particle diameter (D50) obtained by a laser diffraction / scattering type particle size distribution measuring apparatus with a cumulative degree of 50% (hereinafter sometimes simply referred to as “average particle diameter (D50)”) exceeds 5 ⁇ m and is 12 ⁇ m.
  • the present invention relates to a talc particle characterized in that the ratio (D90 / D10) of the particle size (D90) with an accumulation degree of 90% and the particle size (D10) with an accumulation degree of 10% is 5 or less.
  • “talc particles” is a general term for “talc particles” and “talc powder”.
  • the present invention provides (5) An organic polymer composition comprising the talc particles of any one of (1) to (4) and an organic polymer.
  • Fine talc particles having an average particle size (D50) of 5 ⁇ m or less have a low bulk density and the package volume increases when packaged for each predetermined mass, leading to an increase in storage and transportation costs.
  • a compression treatment is required to reduce the volume, but the talc particles of the present invention have an average particle diameter (D50) of more than 5 ⁇ m and not more than 12 ⁇ m, so that the bulk density does not become too small, so it is compact. It can be packaged, and the cost for storage and transportation can be reduced.
  • the talc particles of the present invention do not cause agglomeration of particles, and do not clog a hopper, clogging a filter provided in a mixing device, a kneading device, a molding device or the like.
  • the organic polymer composition of the present invention containing the talc particles has a shrinkage during molding.
  • the mechanics is equivalent or superior compared to the case of using an organic polymer composition containing talc particles having an average particle diameter (D50) of 5 ⁇ m or less. It is possible to manufacture a molded product having good characteristics (flexural strength, flexural modulus, impact strength, hardness, etc.) and excellent surface characteristics with good dimensional stability.
  • the organic polymer composition in the present invention it is possible to produce a molded article having high rigidity, excellent heat resistance, electrical insulation and the like.
  • the present invention is described in detail below.
  • the volume cumulative distribution curve of talc particles obtained using a laser diffraction / scattering type particle size distribution analyzer ( ⁇ ) The average particle size (D50) at which the cumulative degree is 50% is more than 5 ⁇ m and 12 ⁇ m or less; and ( ⁇ ) The particle size (D90) ( ⁇ m) at which the cumulative degree is 90% and the cumulative degree is 10%.
  • the ratio (D90 / D10) to the resulting particle size (D10) ( ⁇ m) is 5 or less;
  • the average particle diameter (D50) is preferably 6 to 12 ⁇ m, more preferably 6.5 to 11 ⁇ m, and even more preferably 7 to 11 ⁇ m.
  • D90 / D10 is preferably 4.7 or less, more preferably 4.6 or less, and even more preferably 4.0 or less.
  • it is preferable that D90 / D10 is 2.0 or more.
  • the average particle diameter (D50) and D90 / D10 of talc particles in this specification are determined by dispersing talc particles in water using a dispersion aid such as sodium pyrophosphate or sodium hexametaphosphate as necessary.
  • the average particle diameter (D50) (median diameter) and D90 / D10 obtained from the volume cumulative distribution curve of the particle diameter using a laser diffraction / scattering particle size distribution measuring device, and the detailed measuring method thereof is as follows: As described in the following examples.
  • the average particle diameter (D50) is more than 5 ⁇ m and not more than 12 ⁇ m
  • D90 / D10 is larger than 5 and the degree of irregularity of the particle diameter of the talc particles increases
  • the talc particles are blended into the organic polymer.
  • the shrinkage during molding increases, and the resulting molded product has low bending strength, flexural modulus, etc., resulting in low rigidity, and low impact strength, hardness, etc.
  • talc particles having an average particle diameter (D50) larger than 12 ⁇ m and D90 / D10 larger than 5 have a shrinkage during molding when the talc particles are blended with an organic polymer to produce a molded product.
  • the molded product obtained becomes large, and the flexural strength, flexural modulus, etc. become small and the rigidity becomes low, and the impact strength and hardness become low.
  • Talc particles with an average particle size (D50) of 5 ⁇ m or less have a D90 / D10 value of 5 or less and a uniform particle size, so the bulk density is low and the volume of the package is large, and compression processing is performed during storage and transportation.
  • the particles are aggregated and easily clogged with a hopper and clogged with a filter provided in a mixing device, a kneading device, a molding device, etc.
  • the impact strength and hardness of the molded product produced from the coalescence composition are low compared to the molded product produced from the organic polymer composition blended with the talc particles of the present invention that satisfy the above requirements ( ⁇ ) and ( ⁇ ). .
  • the talc particles of the present invention preferably have a larger aspect ratio and a small amount of impurities such as magnesite, dolomite, chlorite, calcite, quartz, pyrite. .
  • the talc particles of the present invention are talc particles satisfying the above requirements ( ⁇ ) and ( ⁇ ), the locality of the talc that is the raw material of the talc particles, the method for producing the talc particles, the component composition of the talc particles, etc. are particularly limited. Not.
  • the talc that is the raw material of the talc particles of the present invention may be any of Afghanistan, Pakistan, India, China, Australia, the United States, Europe, Africa, and the like. A talc having a high aspect ratio and less impurities is preferably used.
  • Examples of the pulverizing apparatus that can be used to obtain the talc particles of the present invention include a hammer mill, a micron mill, a roller mill, a vertical mill, a disk mill, a jet mill, and a bead mill.
  • hammer mills and micron mills are preferably used from the viewpoint of delamination and cost.
  • the method for producing the talc particles of the present invention includes pulverization using raw stone (talc) or coarsely pulverized material as a raw material, and an average particle diameter (D50) of about 7 to 15 ⁇ m.
  • D90 / D10 is talc particles of 6 or less or the vicinity thereof, and is used as a raw material, or a commercially available talc particle is used as a raw material, and pulverization is performed using the above-described pulverizer to obtain an average particle diameter ( D50) is preferably talc particles in the range of 7 to 12 ⁇ m, and by classifying them, the average particle diameter (D50) is more than 5 ⁇ m and 12 ⁇ m or less, and D90 / D10 is 5 or less. Examples thereof include a method for producing talc particles.
  • the talc particles of the present invention may not be surface-treated or may be surface-treated.
  • the presence or absence of surface treatment, the type of surface treatment agent, and the like can be selected according to the use of talc particles.
  • the surface treatment agent a surface treatment agent that can improve the adhesion and / or dispersibility of talc particles to the organic polymer is preferably used.
  • an organic silane coupling agent, an organic titanate coupling agent, a fatty acid, a fatty acid metal salt, a fatty acid ester, or the like can be used as the surface treatment agent.
  • an organic silane coupling agent and / or an organic titanate coupling agent the affinity with a material (base material such as an organic polymer) containing the talc particles is improved.
  • tensile strength, elongation, impact strength, elastic modulus, surface hardness and the like are improved.
  • organic titanate coupling agent examples include tetrakis (2-ethylhexyloxy) titanium, titanium-i-propoxyoctylene glycolate, di-i-propoxy bis (acetylacetate).
  • titanium propanedioxytitanium bis (ethylacetoacetate), tri-n-butoxytitanium monostearate, di-i-propoxytitanium distearate, butyl titanate dimer, titanium octylene glycolate, diisopropoxytitanium bis (tri Ethanolaminate), dihydroxytitanium bislactate, dihydroxybis (ammonium lactate) titanium, bis (dioctylpyrophosphate) ethylene titanate, bis (dioctylpyrophosphate) Siacetate titanate, tri-n-butoxytitanium monostearate, tetra-n-butyl titanate, tetraisopropyl bis (dioctyl phosphite) titanate, tetraoctyl bis (ditridecyl phosphite) titanate, tetra (2,2-diallyloxy) Methyl-1-buty
  • fatty acids, fatty acid metal salts, and fatty acid esters that can be used for the surface treatment of the talc particles of the present invention include saturated or unsaturated fatty acids such as lauric acid, stearic acid, behenic acid, montanic acid, erucic acid, and the like. Examples thereof include metal salts such as magnesium, calcium, lithium, zinc, and sodium, and esters of these fatty acids.
  • saturated or unsaturated fatty acids such as lauric acid, stearic acid, behenic acid, montanic acid, erucic acid, and the like.
  • metal salts such as magnesium, calcium, lithium, zinc, and sodium, and esters of these fatty acids.
  • the talc particles of the present invention are used as fillers for improving the physical properties of organic polymers; for paints (external pigments for paints, anti-sagging agents, matting agents, rust-proof paints, powder paints, etc.); for paper and pulp (fillers, Pitch control agent, coating agent, etc.) Pharmaceutical use (tablet excipients, etc.) Cosmetic use (foundation, body powder, eye shadow, lipstick, etc.); Pesticide / fertilizer use (pesticide carrier, fertilizer prevention) It can be used for various applications such as ceramics (ceramic glaze, ceramic sheath, steatite ceramics, etc.).
  • the talc particles of the present invention are suitable as a filler for improving the physical properties of the organic polymer, and therefore the present invention includes an organic polymer composition containing the talc particles of the present invention.
  • the organic polymer composition of the present invention containing the talc particles of the present invention has small shrinkage at the time of molding, is excellent in mechanical properties such as bending strength, bending elastic modulus, impact strength, hardness, high rigidity, heat resistance
  • a molded article having excellent surface characteristics and excellent electrical insulation is provided.
  • organic polymer examples include thermoplastic polymers (thermoplastic resins or thermoplastic elastomers), thermosetting resins, rubbers (natural rubber or synthetic rubber), cellulose polymers, and the like. Can be mentioned.
  • thermosetting resins examples include phenol resins, urea resins, melamine resins, alkyd resins, thermosetting acrylic resins, unsaturated polyester resins, diallyl phthalate resins, epoxy resins, Thermosetting resin including thermosetting silicone resin, thermosetting polyimide, thermosetting resin derived from cyclopentadiene, thermosetting resin derived from aromatic nitrile, furan resin, ketone resin, xylene resin, condensed polycyclic aromatic And so on.
  • the rubber that can be used in the organic polymer composition of the present invention includes natural rubber, styrene butadiene rubber (SBR), butadiene rubber (BR), chloroprene rubber (CR), isoprene rubber (IR), isoprene / isoprene rubber (or butyl rubber). IIR), ethylene propylene rubber (EPM, EPDM), acrylonitrile butadiene rubber (or nitrile rubber, NBR), silicone rubber, fluorine rubber, acrylic rubber, epichlorohydrin rubber, and the like.
  • SBR styrene butadiene rubber
  • BR butadiene rubber
  • CR chloroprene rubber
  • IR isoprene rubber
  • IR isoprene / isoprene rubber
  • IIR ethylene propylene rubber
  • EPM ethylene propylene rubber
  • EPDM acrylonitrile butadiene rubber
  • NBR nitrile rubber
  • silicone rubber fluorine rubber
  • the organic polymer composition of the present invention can contain one or more of the above-mentioned organic polymers depending on the use of the composition.
  • the organic polymer composition of the present invention preferably contains one or more of thermoplastic polymers (thermoplastic resin and thermoplastic elastomer) as the organic polymer.
  • the content of talc particles in the organic polymer composition may vary depending on the use of the organic polymer composition, the type of the organic polymer constituting the organic polymer composition, etc. In general, from the viewpoint of physical properties of the organic polymer composition, it is preferably 5 to 80% by mass, more preferably 10 to 70% by mass based on the total mass of the solid in the organic polymer composition, More preferably, it is 10 to 40% by mass.
  • the organic polymer composition of the present invention is an antioxidant, a heat stabilizer, a weather resistance improver, a release agent, a lubricant, a pigment, a dye, and a plasticizer, as necessary, within a range that does not impair the effects of the present invention.
  • one or more of antistatic agents and flame retardants can be contained.
  • the organic polymer composition of the present invention may be filled with fillers other than talc particles (for example, calcium carbonate, clay, synthetic silicon, titanium oxide, carbon black, 1 type or 2 types or more of barium sulfate, mica, glass fiber, whisker, carbon fiber, magnesium carbonate, kaolin, graphite, molybdenum disulfide, zinc oxide, and the like.
  • the organic polymer composition of the present invention may be a liquid composition containing a solvent that dissolves the organic polymer or a liquid medium that does not dissolve the organic polymer.
  • the organic polymer composition of the present invention is produced by mixing talc particles with the organic polymer before curing or vulcanization. can do. Furthermore, even if the organic polymer is thermoplastic, if its melting temperature is high, or if the melting temperature of the organic polymer is close to the thermal decomposition temperature, the organic polymer is dissolved in a suitable solvent and talc particles And the organic polymer composition of the present invention can be produced with or without removing the solvent.
  • the organic polymer composition of the present invention is a composition used for the production of a molded article
  • the type of the organic polymer contained in the composition (particularly whether it is a melt-moldable organic polymer) or the like
  • a molded product can be manufactured by a conventionally employed method.
  • a thermoplastic polymer composition for example, injection molding, extrusion molding, blow molding (extrusion blow molding, injection blow molding), calendering, compression molding, sheet forming molding (vacuum molding, A molded product can be produced by pressure molding), powder molding, slush molding, or the like.
  • the organic polymer composition of the present invention is a thermosetting resin composition
  • a molded product is produced by, for example, compression molding, lamination molding, trough molding, injection molding, casting, or casting. be able to.
  • the organic polymer composition of the present invention is a rubber (rubber with vulcanization) composition
  • mold molding direct pressure molding, direct pressure injection molding
  • injection molding transfer molding, layer molding
  • a molded product can be manufactured by extrusion molding or the like.
  • the molded product produced using the organic polymer composition of the present invention can be used for the same use as before depending on the type of the organic polymer forming the molded product.
  • an organic polymer in which the talc particles of the present invention are blended with polypropylene, a composition of polycarbonate and ABS, a composition of polyester and ABS, a thermoplastic elastomer, or the like is used for an automobile.
  • An organic polymer composition that can be effectively used in automotive applications such as bumpers, instrument panels, door trims, fan covers, heater housings, ducts, etc., and blends talc particles of the present invention with engineering resins such as polyamide.
  • the organic polymer composition obtained by blending the talc particles of the present invention with polypropylene can be used effectively for applications such as tray containers.
  • Average particle diameter (D50) and D90 / D10 of talc particles A dispersion prepared by uniformly dispersing 150 to 200 mg of talc particles in 100 ml of water is placed in a wet sample cell of a laser diffraction / scattering particle size distribution measurement device (“Microtrack MT3300EX” manufactured by Nikkiso Co., Ltd.), and the measurement device Is used to obtain a volume cumulative distribution curve of talc particles, and based on the curve, a particle diameter [average particle diameter (D50)] at a cumulative degree of 50% is obtained, and a particle size (D10) at a cumulative degree of 10% is obtained. D90 / D10 was calculated
  • Tensile strength of molded product The tensile strength was measured according to JIS K7161. For the measurement, a universal testing machine (AG-100 kNF) manufactured by Shimadzu Corporation was used.
  • IZOD impact strength of the molded product was measured according to JIS K7110. For the measurement, a universal impact tester (No. 258) manufactured by Yasuda Seisakusho was used.
  • Rockwell hardness of molded product Rockwell hardness was measured according to JIS K7202-2. For measurement, a Rockwell hardness tester (No. 566) manufactured by Toyo Seiki Co., Ltd. was used.
  • Example 1 [Production of Talc Particles (A1)]
  • the raw talc from Bengal, India is used as a raw material, and the talc is supplied to a micron mill ("Micro Colloider FKM-200" manufactured by Kawamoto Tekko Co., Ltd.) and pulverized under conditions of 1800 rpm and 12 kg per minute.
  • Talc particles having an average particle diameter (D50) of 10.5 ⁇ m and D90 / D10 of 3.8 [hereinafter referred to as “talc particles (A1)”] were produced.
  • Example 2 [Production of talc particles (A2)]
  • the talc particles (A1) obtained in Example 1 are supplied to a classifier (manufactured by Katsumiyama Mining) and the average particle size (D50) is 7.2 ⁇ m and D90 / A talc particle having a D10 of 3.9 [hereinafter referred to as “talc particle (A2)”] was obtained.
  • Example 3 [Production of Talc Particles (A3)]
  • the raw talc from India Bengal is used as a raw material, and the talc is supplied to a hammer mill ("PULVERSER 42 type” manufactured by ShriKrishna) and pulverized at a rotational speed of 1000 rpm and 32 kg / min.
  • Talc particles (D50) of 6.8 ⁇ m and D90 / D10 of 4.6 [hereinafter referred to as “talc particles (A3)”] were produced.
  • Comparative Example 2 [Production of Talc Particles (B2)]
  • the talc particles obtained in Comparative Example 1 were supplied to a classifier (“YACA-400HU” manufactured by Eurus Techno Co.) and the average particle size (D50) was 7.5 ⁇ m and D90 / A talc particle having a D10 of 6.9 [hereinafter referred to as “talc particle (B2)”] was obtained.
  • Example 4 [Polypropylene composition] (1) Supplying 80 parts by mass of polypropylene ("J708UG” manufactured by Prime Polymer Co., Ltd.) and 20 parts by mass of talc particles (A1) produced in Example 1 to a twin-screw extruder ("TEX30" manufactured by Nippon Steel) After melt-kneading at 200 ° C., extrusion and cutting were performed to produce a pellet-shaped polypropylene composition. At that time, the aggregation properties of the talc particles (A1) were evaluated according to the evaluation criteria described in Table 1 above, and as shown in Table 3 below. (2) The pellet-shaped polypropylene composition obtained in (1) above is injected under the conditions of a melting temperature of 210 ° C.
  • Examples 5 to 6 and Comparative Examples 3 to 4 [Polypropylene composition] (1) Instead of 20 parts by mass of talc particles (A1), 20 of each of the talc particles (A2), (A3), (B1) or (B2) produced in Examples 2, 3 and Comparative Examples 1 or 2 were used. Except having used the mass part, the pellet-shaped polypropylene composition was manufactured similarly to (1) of Example 4, respectively. At that time, the aggregation properties of the talc particles (A2), (A3), (B1) and (B2) were evaluated according to the evaluation criteria described in Table 1 above, and as shown in Table 3 below.
  • Example 7 [Polypropylene composition] (1) Pellets of polypropylene in the same manner as (1) of Example 4 except that 70 parts by mass of polypropylene and 30 parts by mass of talc particles (A2) instead of 20 parts by mass of talc particles (A1) were used. A composition was prepared. At that time, the aggregation properties of the talc particles (A2) were evaluated according to the evaluation criteria described in Table 1 above, and as shown in Table 3 below. (2) Using the pellet-shaped polypropylene composition obtained in (1) above, injection molding was carried out in the same manner as in (2) of Example 4 to prepare a test piece for measuring physical properties, and the method described above. Each physical property was measured. The results are shown in Table 3 below.
  • Comparative Example 8 [Polypropylene composition] Except that 20 parts by mass of talc particles (B1) was changed to 30 parts by mass, a pellet-shaped polypropylene composition was produced in the same manner as in Comparative Example 3, and evaluation of the cohesiveness of talc particles (B1) was obtained. Each physical property using the pellet-shaped polypropylene composition was measured. The results are shown in Table 3 below.
  • the talc particles (A1) to (A3) obtained in Examples 1 to 3 have an average particle diameter (D50) of more than 5 ⁇ m and 12 ⁇ m or less, and D90 / D10 is By being 5 or less, aggregation does not occur and the handleability is excellent.
  • the polypropylene compositions of Examples 4 to 6 containing the talc particles (A1) to (A3) obtained in Examples 1 to 3 have a small shrinkage ratio at the time of molding, and in addition to those of Examples 4 to 6.
  • Molded articles obtained using the polypropylene composition were obtained using the polypropylene compositions of Comparative Examples 5 to 7 containing talc particles (C1) to (C3) having an average particle diameter (D50) of 5 ⁇ m or less. It has the same bending strength and bending elastic modulus as the molded product, has high rigidity, and has high values of IZOD impact strength and Rockwell hardness, and is excellent in impact resistance and hardness. In Example 7 in which the proportion of talc particles was increased, the bending strength and the flexural modulus were improved and the tensile strength was high, whereas in Comparative Example 8, the tensile strength was reduced.
  • the polypropylene compositions of Comparative Examples 3 and 4 containing talc particles having D90 / D10 exceeding 5 obtained in Comparative Examples 1 and 2 were compared with Examples 4 to 6 at the time of molding. Molded articles having a high shrinkage ratio and obtained using the polypropylene compositions of Comparative Examples 3 and 4 were compared with the molded articles obtained using the polypropylene compositions of Examples 4 to 6 in terms of bending strength and bending. The values of elastic modulus, IZOD impact strength and Rockwell hardness are low and the rigidity, impact resistance and hardness are inferior.
  • talc particles (C1) to (C3) having an average particle diameter (D50) of 5 ⁇ m or less are prone to agglomeration and are inferior in handleability.
  • Molded articles obtained using the polypropylene compositions of Comparative Examples 5 to 7 containing talc particles (C1) to (C3) having an average particle diameter (D50) of 5 ⁇ m or less are those of Examples 4 to 6.
  • the values of IZOD impact strength and Rockwell hardness are low, and the impact resistance and hardness are inferior.
  • Example 8 [ABS resin composition] (1) 80 parts by mass of ABS resin (“Toyolac 700-314” manufactured by Toray Industries, Inc.) and 20 parts by mass of talc particles (A2) produced in Example 2 were placed in a twin-screw extruder (“TEX30” manufactured by Nippon Steel). After feeding and melt-kneading at 230 ° C., extrusion and cutting were performed to produce a pellet-shaped ABS resin composition. (2) The pellet-shaped ABS resin composition obtained in the above (1) was used under the conditions of a melting temperature of 250 ° C. and a mold temperature of 60 ° C. using an injection molding machine (“J75E II” manufactured by Nippon Steel). A test piece for measuring physical properties was produced by injection molding, and each physical property was measured by the method described above. The results are shown in Table 4 below.
  • Example 9 [ABS resin composition] (1) Instead of 20 parts by mass of talc particles (A2), pellet-like ABS was used in the same manner as in (1) of Example 8 except that 20 parts by mass of talc particles (A3) produced in Example 3 were used. A resin composition was produced. (2) Using the pellet-shaped ABS resin composition obtained in (1) above, injection molding was performed in the same manner as in (2) of Example 8 to prepare a test piece for measuring physical properties, and the above-mentioned Each physical property was measured by the method. The results are shown in Table 4 below.
  • the talc particles of the present invention have a bulk density that is not too small and can be packaged compactly, particles do not agglomerate, are clogged with a hopper, a filter provided in a mixing device, a kneading device, a molding device, etc. No clogging occurs, and when blended with an organic polymer, a molded article having excellent bending strength, flexural modulus, impact strength, hardness, etc. and excellent surface characteristics can be produced with good dimensional stability. Since an organic polymer composition can be obtained, the talc particles of the present invention and the organic polymer composition containing the talc particles can be effectively used for various applications.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

L'invention concerne des particules de talc présentant : un diamètre moyen de particule (D50), qui est le diamètre à une fréquence cumulative volumique de 50 % tel qu'obtenu par un dispositif de mesure de la distribution granulométrique de type diffraction/diffusion laser, supérieur à 5 µm jusqu'à inférieur ou égal à 12 µm ; et un rapport (D90/D10), qui est le rapport entre la taille de particule (D90) à une fréquence cumulative volumique de 90 % et la taille de particule (D10) à une fréquence cumulative volumique de 10 %, inférieur ou égal à 5. L'invention concerne également une composition de polymère organique comprenant lesdites particules de talc.
PCT/JP2014/083170 2013-12-16 2014-12-15 Particules de talc et composition de polymère organique les comprenant WO2015093450A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013259080A JP2017030977A (ja) 2013-12-16 2013-12-16 タルク粒子およびそれを含有する有機重合体組成物
JP2013-259080 2013-12-16

Publications (1)

Publication Number Publication Date
WO2015093450A1 true WO2015093450A1 (fr) 2015-06-25

Family

ID=53402796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/083170 WO2015093450A1 (fr) 2013-12-16 2014-12-15 Particules de talc et composition de polymère organique les comprenant

Country Status (2)

Country Link
JP (1) JP2017030977A (fr)
WO (1) WO2015093450A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020169104A (ja) * 2019-04-02 2020-10-15 公立大学法人 富山県立大学 タルク粒子及び樹脂組成物
CN113574103A (zh) * 2019-03-20 2021-10-29 东洋纺株式会社 聚酰胺树脂组合物

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200136006A (ko) * 2018-03-30 2020-12-04 가부시키가이샤 아데카 입상 자외선 흡수제 및 수지 조성물
WO2020189503A1 (fr) * 2019-03-20 2020-09-24 東洋紡株式会社 Composition de résine polyamide
WO2020189501A1 (fr) * 2019-03-20 2020-09-24 東洋紡株式会社 Composition de résine polyamide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10265215A (ja) * 1997-03-25 1998-10-06 Idemitsu Petrochem Co Ltd タルク及びそれを含有するプロピレン系重合体組成物
JPH11343352A (ja) * 1998-06-02 1999-12-14 Mitsubishi Kagaku Polyester Film Kk ポリエステルフィルム
JP2000281809A (ja) * 1999-04-01 2000-10-10 Daicel Chem Ind Ltd 二軸延伸スチレン系樹脂シート
JP2011074131A (ja) * 2009-09-29 2011-04-14 Japan Polypropylene Corp タルク粉末を含む樹脂組成物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10265215A (ja) * 1997-03-25 1998-10-06 Idemitsu Petrochem Co Ltd タルク及びそれを含有するプロピレン系重合体組成物
JPH11343352A (ja) * 1998-06-02 1999-12-14 Mitsubishi Kagaku Polyester Film Kk ポリエステルフィルム
JP2000281809A (ja) * 1999-04-01 2000-10-10 Daicel Chem Ind Ltd 二軸延伸スチレン系樹脂シート
JP2011074131A (ja) * 2009-09-29 2011-04-14 Japan Polypropylene Corp タルク粉末を含む樹脂組成物

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113574103A (zh) * 2019-03-20 2021-10-29 东洋纺株式会社 聚酰胺树脂组合物
JP2020169104A (ja) * 2019-04-02 2020-10-15 公立大学法人 富山県立大学 タルク粒子及び樹脂組成物
JP7132571B2 (ja) 2019-04-02 2022-09-07 公立大学法人 富山県立大学 タルク粒子及び樹脂組成物

Also Published As

Publication number Publication date
JP2017030977A (ja) 2017-02-09

Similar Documents

Publication Publication Date Title
WO2015093450A1 (fr) Particules de talc et composition de polymère organique les comprenant
JP6615615B2 (ja) タルク組成物およびその使用
AU2003228571B2 (en) Novel boehmite particles and polymer materials incorporating same
JP7111736B2 (ja) 難燃性ポリマー組成物
JP7204712B2 (ja) タルク粒子及びその使用
JP6944322B2 (ja) 熱可塑性樹脂組成物の製造方法
KR101154107B1 (ko) 충전제?유리 함유 수지 성형체
Chavarria et al. Effect of melt processing conditions on the morphology and properties of nylon 6 nanocomposites
Acierno et al. Preparation and characterization of PBT nanocomposites compounded with different montmorillonites
Zhang et al. The effects of recycling on the properties of carbon nanotube-filled polypropylene composites and worker exposures
JP2006282923A (ja) セルロースを配合した樹脂組成物
US8575255B2 (en) Applications of shaped nano alumina hydrate as barrier property enhancer in polymers
CN110914351A (zh) 用于减少挥发性有机化合物排放的沉淀碳酸钙
CN113518797A (zh) 聚酰胺树脂组合物
WO2010056689A1 (fr) Nanocomposite comprenant une argile traitée thermiquement et un polymère
CN1253511C (zh) 防积垢的热塑性树脂组合物
JP2017186224A (ja) 亜リン酸アルミニウム、および難燃性樹脂組成物
JPH09302142A (ja) 熱可塑性重合体組成物
JP6764416B2 (ja) フィラー組成物
JP7132571B2 (ja) タルク粒子及び樹脂組成物
JPH08165376A (ja) 熱可塑性樹脂組成物
US11414530B2 (en) Kaolin-filled polymeric compositions
JP7320802B1 (ja) タルク粉末、樹脂物性向上剤、樹脂組成物
JP2019069867A (ja) タルク粒子及びその製造方法、樹脂組成物
KR20090112495A (ko) 탄산칼슘 나노캡슬 충전제, 이의 제조방법 및 이를포함하는 플라스틱 수지 조성물

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14870898

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14870898

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP