JP5548740B2 - 新規なエラストマー複合材料及びそのための装置及び方法 - Google Patents
新規なエラストマー複合材料及びそのための装置及び方法 Download PDFInfo
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- JP5548740B2 JP5548740B2 JP2012164635A JP2012164635A JP5548740B2 JP 5548740 B2 JP5548740 B2 JP 5548740B2 JP 2012164635 A JP2012164635 A JP 2012164635A JP 2012164635 A JP2012164635 A JP 2012164635A JP 5548740 B2 JP5548740 B2 JP 5548740B2
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- elastomer
- carbon black
- emulsion
- zone
- masterbatch
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- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- C—CHEMISTRY; METALLURGY
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Description
本発明は、エラストマー複合材料(composites)を生成し、加工するための新規の方法および装置、ならびに、そのような方法および装置を使って生成された新規のエラストマー複合材料に関するものである。詳記するならば、本発明は、エラストマー中に微細に分散した粒状充填材のエラストマー・マスタバッチ、例えば天然ゴム中に微細に分散したカーボンブラック粒状充填材のエラストマー複合材料、そのようなマスタバッチ組成物(compositions)から形成されたゴム材料やゴム製品等を生成し、加工するための連続フローの方法および装置に関するものである。
様々な合成エラストマー、天然ゴムまたはエラストマー配合材料(blends)のどの中にも粒状充填材が分散しているエラストマー組成物から、商業的意義のある多数の製品が形成される。例えばカーボンブラックは、天然ゴムおよび他のエラストマーにおける補強剤として広く使用される。マスタバッチ、すなわちエラストマーは、カーボンブラックまたは他の充填材とともに凝固させ、任意にエキステンダー油等の様々な添加物(additives)を含有する形で生成するのが普通である。カーボンブラック・マスタバッチは、相異なるグレードのカーボンブラック、すなわち単位重量当たり表面積と“構造”の両方で変わるカーボンブラックを使って調製することができる。
1 п Di 2
非分散面積率(%)= ───Σm i=1 Ni ────
Am 4
ここに、Am=検査された全サンプル表面積
Ni =サイズDiの欠陥の数
Di =欠陥の面積と同じ面積を有する円の直径(等価円直径)
m =画像の数
この長年の切実な要求の全部または幾分かに応えることが、本発明の目的である。
第1の形態に従い、粒状充填材とエラストマーを有するほとんど凝固したマスタバッチを加工する方法であって、細長い処理室の中に軸方向に向けられた多重ローターを有する連続的な混合機(compounder)の供給口にマスタバッチを供給する工程、連続的な混合機の処理室を通してマスタバッチをローターの制御された操作によって処理する工程、および連続的な混合機の吐出口からマスタバッチを吐出する工程を包含する。ある好適な実施例では、この方法は、連続的な混合機の吐出口からのマスタバッチをオープンミルの中に通す工程、および/または、連続的な混合機において補助(additional)材料をマスタバッチに配合する工程も包含してよい。ある好適な実施例では、補助材料は、補助(additional)充填材、補助エラストマー、第2のマスタバッチ、油および他の添加剤の中から選択してよい。ある好適な実施例では、連続的な混合機はマスタバッチを乾燥させてよい。ある好適な実施例では、連続的な混合機はマスタバッチのムーニー粘度を制御する。
以下、ある好適な実施例を添付の図面に則して説明する。
以下は、本発明のある好適な実施例の詳細な説明であり、本発明を下に述べる実施例に制限することを意図するものではない。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。この実験は、オイルの流れを添加し組み入れるための能力をテストするようにも構成されていた。この湿潤サンプルは天然ゴム乳液濃縮物とN331タイプのカーボンブラックとで作られた。マスタバッチは、約20重量%の水分レベルで連続的な混合機に供給された。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。この実験は、オイルの流れを添加し組み入れるための能力をテストするようにも構成されていた。この湿潤サンプルは天然ゴム乳液濃縮物とN220タイプのカーボンブラックとで作られた。マスタバッチは、約25重量%の水分レベルで連続的な混合機に供給された。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。オープンミル(OM)もこの実験に組み込まれた。この実験は、オイル、ステアリン酸(SA)及び酸化防止剤(Santoflex 6PPD) の流れを組み入れる能力をテストするようにも構成されていた。この湿潤サンプルは、天然ゴムのフィールド乳液とCabot の実験的カーボンブラックAで作られた。マスタバッチは、約22重量%の水分レベルで連続的な混合機に供給された。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。オープンミル(OM)もこの実験に組み込まれた。この実験は、オイル、ステアリン酸(SA)、シリカ及び酸化防止剤(Santoflex 6PPD) の流れを組み入れる能力をテストするようにも構成されていた。この湿潤サンプルは、天然ゴムのフィールド乳液とN220タイプのカーボンブラックで作られた。マスタバッチは、約25重量%の水分レベルで連続的な混合機に供給された。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。オープンミル(OM)もこの実験に組み込まれた。この湿潤サンプルは、天然ゴムのフィールド乳液とN234タイプのカーボンブラックで作られた。マスタバッチは、約24重量%の水分レベルで連続的な混合機に供給された。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。オープンミル(OM)もこの実験に組み込まれた。この実験は、オイル、ステアリン酸(SA)、酸化亜鉛(ZnO)、シリカ及び酸化防止剤(Santoflex 6PPD) の流れを組み入れる能力をテストするようにも構成されていた。この実験の際に、サンプルFA4に対するブタジエンゴムの添加の実行可能性も研究された。この湿潤サンプルは、天然ゴムのフィールド乳液とN220タイプのカーボンブラックで作られた。マスタバッチは、約20重量%の水分レベルで連続的な混合機に供給された。
この実験は、連続的な混合機(FCM)の乾燥能力をテストするために行われた。オープンミル(OM)もこの実験に組み込まれた。この実験は、オイル、ステアリン酸(SA)、酸化亜鉛(ZnO)、シリカ及び酸化防止剤(Santoflex 6PPD) の流れを組み入れる能力をテストするようにも構成されていた。この湿潤サンプルは、天然ゴムのフィールド乳液とN220タイプのカーボンブラックで作られた。マスタバッチは、約24重量%の水分レベルで連続的な混合機に供給された。
12 供給ライン
14 凝固反応器
18 混合タンク
24 ポンプ手段
32 コロイドミル
34 ホモジナイザー
36 ポンプ手段
40 脱水押出機
100 混合機
104 処理室
105 ハウジング
106 ローター
114 吐出オリフィス
119 コンベア
120 オープンミル
Claims (1)
- 凝固されたエラストマーを具備するエラストマー複合材料において、前記エラストマー内に粒状の充填材が以下の方法により分散されており、この方法が、
エラストマー乳液を具備する第1の流体の連続的な流れを、混合区域から吐出端まで伸張する凝固区域を形成する凝固反応器の混合区域へ供給する手順と、
エラストマー乳液を有する混合物を形成するために、圧力下で粒状の充填材を具備する第2の流体の連続的な流れを凝固反応器の混合区域に供給する手順であって、混合物が吐出端まで連続的な流れとして通過し、粒状の充填材がエラストマー乳液を凝固するために有効であり、混合区域内における第1の流体と第2の流体が十分に混合されて、吐出端までの前に、粒状の充填材を有するエラストマー乳液を完全に凝固させる、供給手順と、
凝固反応器の吐出端からエラストマー複合材料の連続的な流れを吐出する手順と、
凝固反応器の吐出端から処理室内で軸方向を向く複数の平行なローターを有する連続的な混合機へ、エラストマー複合材料を供給する手順と、
ローターの制御された運転により、連続的な混合機の処理室を介してエラストマー複合材料を処理する手順と、
連続的な混合機の吐出オリフィスからエラストマー複合材料を吐出する手順と、
オープンミルを介して連続的な混合機の出口オリフィスからのエラストマー複合材料を処理する手順と、
を具備する方法である、エラストマー複合材料。
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US12979199P | 1999-04-16 | 1999-04-16 | |
US60/129,791 | 1999-04-16 |
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CN1317115C (zh) * | 1999-04-16 | 2007-05-23 | 卡伯特公司 | 制备和处理新弹性体复合料的方法和设备 |
US7341142B2 (en) * | 2001-11-09 | 2008-03-11 | Cabot Corporation | Elastomer composite materials in low density forms and methods |
US6908961B2 (en) | 2001-12-07 | 2005-06-21 | Cabot Corporation | Elastomer composites, elastomer blends and methods |
CN100439061C (zh) * | 2001-12-19 | 2008-12-03 | 倍耐力轮胎公司 | 连续生产弹性混合物的方法与设备 |
EP1498451A4 (en) * | 2002-04-23 | 2007-03-07 | Bridgestone Corp | RUBBER-CONTAINING COGULATORY COMPOSITIONS AND METHOD FOR PRODUCING THE COAGULATES |
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