JP2006282842A - 微細炭素繊維含有樹脂組成物の製造方法 - Google Patents
微細炭素繊維含有樹脂組成物の製造方法 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- 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
- B29B7/483—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 the other mixing parts being discs perpendicular to the screw axis
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
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- 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
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
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- 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
- B29C48/285—Feeding the extrusion material to the extruder
-
- 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
-
- 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
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0005—Conductive
Abstract
【解決手段】
微細炭素繊維と熱可塑性樹脂とを、混練押出機に投入して混錬することにより、熱可塑性樹脂中に微細炭素繊維が分散配合されてなる微細炭素含有樹脂組成物を製造する方法において、前記混練押出機のシリンダー温度が、JIS K 7210に規定される2.16kg荷重下での前記熱可塑性樹脂のメルトフローインデックスが10〜30となる温度であり、かつ前記混練押出機内における前記微細炭素繊維含有樹脂組成物の滞留時間が25〜100秒であり、また、前記混練押出機のスクリューセグメントの微細炭素繊維含有樹脂組成物に対するせん断速度が、10000〜30000/秒である条件下に設定する。
【選択図】 なし
Description
CVD法によって、トルエンを原料として微細炭素繊維を合成した。
内径70mmで分散板付透明円筒に1g粉体を充填し、圧力0.1Mpa、容量1.3リットルの空気を分散板下部から送り粉体を吹出し、自然沈降させる。5回吹出した時点で沈降後の粉体層の高さを測定する。このとき測定箇所は6箇所とることとし、6箇所の平均を求めた後、嵩密度を算出した。
堀場ジョバンイボン製LabRam800を用い、アルゴンレーザーの514nmの波長を用いて測定した。
熱可塑性樹脂として、ポリカーボネート樹脂粉砕パウダー(日本ジーイープラスチックス株式会社製、レキサンHF1110)と、参考例1で得られた微細炭素繊維とを、(三井鉱山株式会社製、ヘンシェルミキサー)を用いて、表1に示す組成比にて予備混合した。そして、この予備混合物を、スクリュー径35mm、L/D=35の2軸押出機に投入し、表1に示す押出温度、滞留時間、せん断速度にて溶融混練し、樹脂組成物ペレットを得た。
表2に示す組成比にて混合する以外は、実施例1〜6と同様にして、ポリカーボネート樹脂粉砕パウダー(日本ジーイープラスチックス株式会社製、レキサンHF1110)と、参考例1で得られた微細炭素繊維とを、予備混合した後、表2に示す条件を用いる以外は、実施例1〜6と同様にして樹脂組成物を調製し、さらに平板状成形品を作成して、表面抵抗値を測定した。得られた結果を表2に示す。
熱可塑性樹脂として、ポリカーボネートに代えて、ポリアミド樹脂(東レ株式会社製、アミランCM3007)(実施例7)を用いる以外は、実施例2と同様にして樹脂組成物を調製し、さらに平板状成形品を作成して、表面抵抗値を測定した。得られた結果を表3に示す。
2 スクリューセグメント
3 スクリューバレル
4 原料供給口
5 吐出口
6 スクリュー駆動源
7 予備混合室
8 攪拌機
Claims (6)
- 微細炭素繊維と熱可塑性樹脂とを、混練押出機に投入して混錬することにより、熱可塑性樹脂中に微細炭素繊維が分散配合されてなる微細炭素含有樹脂組成物を製造する方法において、前記混練押出機のシリンダー温度が、JIS K 7210に規定される2.16kg荷重下での前記熱可塑性樹脂のメルトフローインデックスが10〜30となる温度であり、かつ前記混練押出機内における前記微細炭素繊維含有樹脂組成物の滞留時間が25〜100秒であり、また、前記混練押出機のスクリューセグメントの微細炭素繊維含有樹脂組成物に対するせん断速度が、10000〜30000/秒であることを特徴とする微細炭素含有樹脂組成物の製造方法。
- 微細炭素繊維と熱可塑性樹脂とを、単軸又は二軸の攪拌機を用いて予め混合して、予備混合体とした後に、前記混練押出機に投入するものである請求項1に記載の微細炭素含有樹脂組成物の製造方法。
- 使用される熱可塑性樹脂が、ペレット状またはフレーク状である場合に、予め当該ペレットまたはフレークを粉砕機にて粉砕してから予備混合体を調製するものである請求項2に記載の微細炭素含有樹脂組成物の製造方法。
- 使用される微細炭素繊維の嵩密度が0.0001〜0.05g/cm3であることを特徴とする請求項1〜3のいずれか1つに記載の微細炭素含有樹脂組成物の製造方法。
- 熱可塑性樹脂が、ポリ塩化ビニル樹脂、ポリオレフィン樹脂、ポリ乳酸樹脂、ポリスチレン樹脂、アクリルニトリル−ブタジエン−スチレン(ABS)樹脂、アクリルニトリル−スチレン(AS)樹脂、ポリ(メタ)アクリル樹脂、ポリアクリロニトリル樹脂、飽和ポリエステル樹脂、アイオノマー樹脂、ポリカーボネート樹脂、ポリアミド樹脂、ポリアセタール樹脂、ポリフェニレンエーテル樹脂、変性ポリフェニレンエーテル樹脂、ポリアリレート樹脂、ポリサルホン樹脂、ポリエーテルイミド樹脂、ポリエーテルサルホン樹脂、ポリフェニレンスルフィド樹脂、ポリエーテルエーテルケトン樹脂、ポリエーテルケトン樹脂、ポリアミドイミド樹脂、熱可塑性ポリイミド樹脂、液晶ポリエステル樹脂、熱可塑性エラストマーおよびそれらのポリマーアロイからなる群より選ばれてなる少なくとも1種である、請求項1〜4のいずれか1つに記載の微細炭素含有樹脂組成物の製造方法。
- 金属微粒子、シリカ、炭酸カルシウム、炭酸マグネシウム、カーボンブラック、炭素繊維、ガラス繊維およびこれらの2種以上の混合物からなる群から選ばれてなるいずれか1つの充填材をさらに配合するものである請求項1〜5のいずれか1つに記載の微細炭素繊維含有樹脂組成物の製造方法。
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JP2005104456A JP4869615B2 (ja) | 2005-03-31 | 2005-03-31 | 微細炭素繊維含有樹脂組成物の製造方法 |
PCT/JP2006/306333 WO2006106687A1 (ja) | 2005-03-31 | 2006-03-28 | 微細炭素繊維含有樹脂組成物の製造方法 |
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JP2005104456A JP4869615B2 (ja) | 2005-03-31 | 2005-03-31 | 微細炭素繊維含有樹脂組成物の製造方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008266577A (ja) * | 2007-03-23 | 2008-11-06 | National Institute Of Advanced Industrial & Technology | 溶融混練物、樹脂成形物及びその製造方法 |
JP2012161965A (ja) * | 2011-02-04 | 2012-08-30 | Vision Development Co Ltd | ダイヤモンド微粒子を含有するダイヤモンド−樹脂複合材料の製造方法 |
JP2013256578A (ja) * | 2012-06-12 | 2013-12-26 | Teijin Ltd | 熱伝導性ポリカーボネート樹脂組成物 |
JP2013256579A (ja) * | 2012-06-12 | 2013-12-26 | Teijin Ltd | 熱伝導性ポリカーボネート樹脂組成物 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012201689A (ja) * | 2011-03-23 | 2012-10-22 | Sumitomo Chemical Co Ltd | 液晶ポリエステル組成物の製造方法及び成形体の製造方法 |
CN110651008B (zh) * | 2017-05-24 | 2022-09-16 | 三菱瓦斯化学株式会社 | 由碳纤维强化热塑性树脂形成的片材和该片材的制造方法 |
JP2019199003A (ja) * | 2018-05-15 | 2019-11-21 | 東芝機械株式会社 | 導電性複合材料の製造方法 |
Citations (4)
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JPS61154811A (ja) * | 1984-12-18 | 1986-07-14 | オクシデンタル・ケミカル・コーポレイシヨン | 高導電性の熱可塑性材料の製造方法 |
JPH07102112A (ja) * | 1993-09-10 | 1995-04-18 | Hyperion Catalysis Internatl Inc | 熱可塑性エラストマー組成物および樹脂組成物 |
JP2005035134A (ja) * | 2003-07-18 | 2005-02-10 | Toray Ind Inc | 樹脂組成物の製造方法 |
JP2005264134A (ja) * | 2003-09-02 | 2005-09-29 | Showa Denko Kk | 導電性ポリマー、その製造方法及びその用途 |
-
2005
- 2005-03-31 JP JP2005104456A patent/JP4869615B2/ja active Active
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2006
- 2006-03-28 WO PCT/JP2006/306333 patent/WO2006106687A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS61154811A (ja) * | 1984-12-18 | 1986-07-14 | オクシデンタル・ケミカル・コーポレイシヨン | 高導電性の熱可塑性材料の製造方法 |
JPH07102112A (ja) * | 1993-09-10 | 1995-04-18 | Hyperion Catalysis Internatl Inc | 熱可塑性エラストマー組成物および樹脂組成物 |
JP2005035134A (ja) * | 2003-07-18 | 2005-02-10 | Toray Ind Inc | 樹脂組成物の製造方法 |
JP2005264134A (ja) * | 2003-09-02 | 2005-09-29 | Showa Denko Kk | 導電性ポリマー、その製造方法及びその用途 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008266577A (ja) * | 2007-03-23 | 2008-11-06 | National Institute Of Advanced Industrial & Technology | 溶融混練物、樹脂成形物及びその製造方法 |
US8415423B2 (en) | 2007-03-23 | 2013-04-09 | National Institute Of Advanced Industrial Science And Technology | Melt-kneaded products and molded resin products |
JP2012161965A (ja) * | 2011-02-04 | 2012-08-30 | Vision Development Co Ltd | ダイヤモンド微粒子を含有するダイヤモンド−樹脂複合材料の製造方法 |
JP2013256578A (ja) * | 2012-06-12 | 2013-12-26 | Teijin Ltd | 熱伝導性ポリカーボネート樹脂組成物 |
JP2013256579A (ja) * | 2012-06-12 | 2013-12-26 | Teijin Ltd | 熱伝導性ポリカーボネート樹脂組成物 |
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