JP2018501089A - 熱膨張性熱可塑性マイクロスフェアを膨張した熱可塑性マイクロスフェアに膨張させるための装置及び方法 - Google Patents
熱膨張性熱可塑性マイクロスフェアを膨張した熱可塑性マイクロスフェアに膨張させるための装置及び方法 Download PDFInfo
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- JP2018501089A JP2018501089A JP2017530080A JP2017530080A JP2018501089A JP 2018501089 A JP2018501089 A JP 2018501089A JP 2017530080 A JP2017530080 A JP 2017530080A JP 2017530080 A JP2017530080 A JP 2017530080A JP 2018501089 A JP2018501089 A JP 2018501089A
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- thermally expandable
- slurry
- thermoplastic microspheres
- expandable thermoplastic
- outlet pipe
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Classifications
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- B01J8/087—Heating or cooling the reactor
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- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
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Abstract
Description
対照実験として、一定の直径の出口パイプを分配パイプなしで使用した方法により、熱膨張性熱可塑性マイクロスフェア(Expancel 461WU40)のスラリーを装置で膨張させた。100℃の温度に保たれた熱水を満たしたタンク内に位置する単一の長さ15mの銅管(加熱ゾーン)を備えた装置を使用することにより、熱膨張性熱可塑性マイクロスフェアを膨張させた。銅管は、7.8mmの一定の内径を有していた。ダイヤフラムポンプを用い、80リットル/時の速度で銅管を通じて20重量%マイクロスフェアの水性スラリーをポンピングした。ダイヤフラムポンプは、6barの圧力を発生させた。膨張した熱可塑性マイクロスフェアは、出口パイプを通じて銅管を出た。
凝集度(分散性)は5段階評価でランク付けすることができて、1は非常に凝集しており、5は凝集塊がまったくない。
10%の熱膨張性熱可塑性マイクロスフェアの乾燥含有量を有するスラリーを用いて、実験2と同様に実験を実施した。
Claims (17)
- 熱膨張性熱可塑性マイクロスフェアを膨張させるための装置であって:
−最低4barの圧力に耐えることができる、入口パイプ(10)及び出口パイプ(8)を有する加熱ゾーン(4)と、
−熱膨張性熱可塑性マイクロスフェアのスラリーを前記加熱ゾーン(4)内に供給し、前記加熱ゾーン(4)内に最低4barの圧力を発生させることができるポンプ(1)と;
−前記加熱ゾーン(4)内の前記熱膨張性熱可塑性マイクロスフェアのスラリーを最低60℃の温度まで、いかなる液体伝熱媒体との前記スラリーの直接接触もなく加熱するための手段とを備え;及び
−前記出口パイプ(8)が、分配パイプ(12)に、前記分配パイプ(12)の入口(13)と出口(14)との間で取り付けられている、前記装置。 - 前記出口パイプ(8)が、一定の内径を有する、請求項1に記載の装置。
- 前記出口パイプ(8)の開口部への端部が、内径において、前記出口パイプ(8)の内径の少なくとも2倍まで増加するように、前記出口パイプ(8)が内径において増加する、請求項1又は2に記載の装置。
- 前記分配パイプ(12)が、少なくとも1つの混合/分離要素(15)を内部に備え、又はこれらの組み合わせを、前記出口パイプ(8)の前記分配パイプ(12)との取り付けの下流に備える、請求項1から3のいずれか一項に記載の装置。
- 前記少なくとも1つの混合/分離要素(15)が、回転ミキサー、スタティックミキサー、回転ナイフ、流れ分割ユニット又はふるいから選択される、請求項3に記載の装置。
- 前記スラリーを加熱するための前記手段が、少なくとも1つの電気加熱要素、熱交換器又は電磁放射源である、請求項1から5のいずれか一項に記載の装置。
- 前記ポンプ(1)と前記加熱ゾーン(4)との間に位置するパルセーションダンパー(2)をさらに備える、請求項1から6のいずれか一項に記載の装置。
- 熱膨張性熱可塑性マイクロスフェアを膨張させるための方法であって:
−熱膨張性熱可塑性マイクロスフェアのスラリーを加熱ゾーン(4)内に供給する工程と、
−前記加熱ゾーン(4)内の前記熱膨張性熱可塑性マイクロスフェアのスラリーを最低60℃の温度まで加熱し、及び最低4barの圧力を発生させる工程であって、前記加熱が、いかなる液体伝熱媒体との前記スラリーのいかなる直接接触もなく実現される工程と、
−前記熱膨張性熱可塑性マイクロスフェアが完全に膨張しないように、前記加熱ゾーン(4)内の前記圧力を維持する工程と;及び
−前記分配パイプ(12)に、前記分配パイプ(12)の入口(13)と出口(14)との間で取り付けられている出口パイプ(8)を通じて、次いで、分配パイプ(12)を通じて、前記加熱ゾーン(4)からさらに低圧のゾーン内に前記スラリーを回収して、前記熱膨張性熱可塑性マイクロスフェアを完全に膨張させる工程とを含む、方法。 - 前記出口パイプ(8)が、一定の内径で使用される、請求項8に記載の方法。
- 前記出口パイプ(8)の開口部への端部が、内径において、前記出口パイプ(8)の内径の少なくとも2倍まで増加するように、内径において増加する前記出口パイプ(8)が使用される、請求項8又は9に記載の方法。
- 前記分配パイプ(12)が、少なくとも1つの混合/分離要素(15)を内部に備え、又はこれらの組み合わせを、前記出口パイプ(8)の前記分配パイプ(12)との取り付けの下流に備える、請求項8から10のいずれか一項に記載の方法。
- 前記入口(13)を介して冷却媒体を加える工程をさらに含み、
前記冷却媒体が、空気、水、窒素ガス、チョーク粒子、炭酸カルシウム粒子、シリカ粒子、粘土粒子及びTiO2粒子から選択される、気体、液体又は微粒子あるいはこれらの任意の組み合わせのいずれか1つである、請求項8から11のいずれか一項に記載の方法。 - 前記加熱ゾーン(4)内の前記圧力が、4〜50barの間に維持される、請求項8から12のいずれか一項に記載の方法。
- 膨張性マイクロスフェアのスラリーが、前記加熱ゾーン内で最低60〜250℃の温度まで加熱される、請求項8から13のいずれか一項に記載の方法。
- 前記熱膨張性熱可塑性マイクロスフェアのスラリー中の熱膨張性熱可塑性マイクロスフェアの含有量が、5〜50重量%の間である、請求項8から14のいずれか一項に記載の方法。
- 前記熱膨張性熱可塑性マイクロスフェアのスラリー中の担体液体が、水性液体又は油性液体である、請求項8から15のいずれか一項に記載の方法。
- 前記熱膨張性熱可塑性マイクロスフェアのスラリーの加熱が、電気加熱要素、熱交換器又は電磁放射源のうちの少なくとも1つによって行われる、請求項8から16のいずれか一項に記載の方法。
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