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MULTI-SCREW KNEADER AND METHOD FOR PRODUCING NANO-COMPOSITE USING SAID MULTI-SCREW KNEADER, AND DISK-SHAPED SEGMENT USED FOR SAID KNEADER AND SAID METHOD

Foreign code F180009546
File No. S2017-0388-C0
Posted date Nov 2, 2018
Country WIPO
International application number 2018JP006270
International publication number WO 2018155502
Date of international filing Feb 21, 2018
Date of international publication Aug 30, 2018
Priority data
  • P2017-030841 (Feb 22, 2017) JP
Title MULTI-SCREW KNEADER AND METHOD FOR PRODUCING NANO-COMPOSITE USING SAID MULTI-SCREW KNEADER, AND DISK-SHAPED SEGMENT USED FOR SAID KNEADER AND SAID METHOD
Abstract Provided are: a multi-screw kneader in which extension and flow actions which act before and after small holes in a disk-shaped segment having the small holes can be sufficiently exhibited; a method for producing a nano-composite using the multi-screw kneader; and a disk-shaped segment used for said kneader and said method. This multi-screw kneader is provided with a plurality of kneading screws and a disk-shaped segment in a barrel. The disk-shaped segment partitions the inside of the barrel at a downstream side from a kneading material feeding part, and is provided with: a plurality of shaft penetrating sections through which the rotation shaft of each kneading screw pass in a rotatable manner; and a plurality of small holes which are perforated around the shaft penetrating sections and serve as flow passages for the kneading material. This method for producing a nano-composite includes a step of feeding nanoparticles as a resin additive by using the multi-screw kneader. This disk-shaped segment is provided with the shaft penetrating sections and the plurality of small holes.
Outline of related art and contending technology BACKGROUND ART
The multi-axis kneading machine, (1) homogenizing: heterogeneous structure of the polymer after the polymerization reaction is eliminated, a mixture of additives, dispersing, (2) plasticizing the polymer, the melt: polymer plasticized, melted, calendering is supplied to the line or the like, (3) dehydrated, devolatilization (desolvation, de-monomer): drying of the polymer, the monomer contained in the polymer after polymerization, devolatilization of solvent, (4) the chemical reaction: polymerization, solution polymerization, chemical reaction such as grafting, (5) blend, alloy: different polymers, a mixture of comparator chibi riser, dispersion, (6) fiber reinforcing material, a mixture of the micro inorganic filler: mixture of fiber-reinforced material, a mixture of inorganic filling material, a micro-sized aggregates of the dispersion of the particles, (7) fiber-reinforced material such as carbon nanotubes, inorganic filler and mixing the nanoparticles (dispersion in the resin uniformly nano-order level refers to the. Or less, the same.): A mixture of fiber-reinforced material, a mixture of inorganic filling material, such as nano-sized aggregates of the dispersion of the particles, kneading according to a difference in purpose, shape and screw arrangement, with respect to the embodiments and the like, has been made in the development of various (non-patent document 1 of Table 2 refer to page 3.).
Kneading is, the multi-axis kneading kneading one of the basic techniques of 1. Kneading is, an ellipse-shaped plate-like member, arranged consecutively in the axial direction. With the rotation of the screw kneading and kneading, the kneaded material, kneading and the inner wall of the barrel between the guided, and the resulting mixture (for example, see Patent Document 1.).
Is increased and the twist angle of the kneading, the distribution, the effects of dispersion is increased. On the other hand, the twist angle becomes small, distribution, and the dispersion effect is reduced, the transfer effect can be increased. In addition, spreads the disk thickness of the chip unit and a large shear stress dispersion effect is increased. On the other hand, the disk thickness is small and the distribution effect is enhanced effect of dispersion is reduced. In this way, by changing the thickness and twist angle of the disk by changing the distribution and dispersion ability is made possible.
However, as described above for the purpose of kneading in a wide range, in particular, among the above-mentioned kneading purpose of the (7) fiber-reinforced material such as carbon nanotubes, nano-mixture of the inorganic filler is, only the control limit of the kneading.
In this case, the kneading using a kneading machine is a multi-axis, is dominated by shear, shear dispersion of the nanoparticles has a higher extension than the flow is considered to be effective. In addition, the shear flow velocity gradient material and the flow is torn off, the flow is extended, stretched in the direction of the principal stress in the material flow.
Therefore, the nano-mixture meet the needs of the new, higher elongation flow is realized by, instead of kneading, the blister discs have been proposed (for example, see Non-Patent Document 1.). The blister discs is, has small holes, the small hole by passing the material to be kneaded, that exhibit the extension flow action of the present invention.
Scope of claims (In Japanese)請求の範囲
[請求項1]
 バレル内に、混練材料を混練するための複数の混練スクリュと、前記混練材料の伸長流動を促進するためのディスク型セグメントを備える多軸混練機であって、
 前記ディスク型セグメントは、前記混練材料の投入部より下流で前記バレル内を仕切った状態に配置されるとともに、各混練スクリュの回転軸が回転自在に貫通する複数の軸貫通部と、これらの軸貫通部の周囲に穿設され、混練材料の流路となる多数の小孔を備えていることを特徴とする多軸混練機。
[請求項2]
 ディスク型セグメントが、小孔が穿設されたディスク本体と、このディスク本体に装着された軸貫通部となるベアリングを備えている請求項1に記載の多軸混練機。
[請求項3]
 小孔の混練材料流れ入口側の開口面積の総計が、バレルの内断面積の20%以下である請求項1または請求項2に記載の多軸混練機。
[請求項4]
 樹脂と樹脂添加剤とを含む混練材料を混練するために用いられる請求項1~請求項3のいずれかに記載の多軸混練機。
[請求項5]
 請求項4に記載の多軸混練機を用い、前記樹脂添加剤としてナノ粒子を投入する工程を含むことを特徴とするナノコンポジットの製造方法。
[請求項6]
 ナノ粒子が、カーボンナノチューブ、カーボンナノファイバ、セルロースナノファイバ、グラフェン、ナノクレイ、カーボンブラックからなる群より選ばれた少なくとも1種である請求項5に記載のナノコンポジットの製造方法。
[請求項7]
 2種以上の異なる樹脂を含む混練材料を混練するために用いられる請求項1~請求項3のいずれかに記載の多軸混練機。
[請求項8]
 混練材料を混練するための複数の混練スクリュをバレル内に備える多軸混練機に用いられるディスク型セグメントであって、
 前記バレル内を仕切るとともに、各混練スクリュの回転軸が回転自在に貫通する複数の軸貫通部と、これらの軸貫通部の周囲に穿設され、混練材料の流路となる多数の小孔を備えていることを特徴とするディスク型セグメント。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • THE DOSHISHA
  • Inventor
  • TANAKA Tatsuya
  • MATSUMOTO Koki
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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