KR920006419A - 열 가소성 수지 가교 발포체의 제조방법 및 장치 - Google Patents

열 가소성 수지 가교 발포체의 제조방법 및 장치 Download PDF

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KR920006419A
KR920006419A KR1019910003196A KR910003196A KR920006419A KR 920006419 A KR920006419 A KR 920006419A KR 1019910003196 A KR1019910003196 A KR 1019910003196A KR 910003196 A KR910003196 A KR 910003196A KR 920006419 A KR920006419 A KR 920006419A
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South Korea
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die
resin composition
crosslinked foam
cross
partially
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KR1019910003196A
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슌지 야마모또
다까아끼 겜모쯔
미쯔노리 오까다
마꼬또 하시모또
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도모마쯔 겡고
후루가와덴끼고오교 가부시끼가이샤
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Publication of KR920006419A publication Critical patent/KR920006419A/ko

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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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/26—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length using several expanding steps
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
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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
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    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
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    • B29C48/872—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone characterised by differential heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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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    • B29C48/91—Heating, e.g. for cross linking
    • 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
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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
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    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
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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
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    • B29C2948/92—Measuring, controlling or regulating
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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
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    • B29C2948/92—Measuring, controlling or regulating
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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    • B29C2948/92—Measuring, controlling or regulating
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

내용 없음

Description

열가소성 수지 가교 발포체의 제조방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 압력제거후의 부분발포 성형체의 기포핵의 직경과 재가열후의 가교발포체의 기포 직경의 관계를 나타내는 그래프,
제2도는 기포핵의 분포밀도와 재가열후의 기포직경의 관계를 나타내는 그래프,
제3도는 기포핵의 생성 가열시의 설정압력과 재가열후의 기포직경의 관계를 나타내는 그래프.

Claims (15)

  1. 적어도 열가소성 수지, 발포제 및 가교제를 함유하는 수지 조성물을, 적어도 성형영역, 가열영역 및 냉각영역이 순서로 연속적으로 설치된 밀폐 다이내에 압출하고; 상기 다이의 성형영역에 있어서, 상기 수지 조성물을 소요의 형상으로 성형하고; 상기 다이의 가열영역에 있어서, 상기 수지 조성물을 가열하여 상기 가교제를 분해시킴과 동시에 상기 발포제의 적어도 일부를 분해시켜서 기포핵을 생성시킴에 의해 부분 발포 성형체를 성형하고; 상기 다이의 냉각영역에 있어서, 상기 부분 발포성형체를, 이 성형체의 연화점 미만의 온도로 냉각하여 강성을 높이고, 이 냉각영역을 이동하는 부분 발포 성형체에 제동력을 부여하면서, 상기 다이밖으로 압출하고; 압출한 부분 발포성형체를 정상압력하에서 가열하고, 상기 발포제를 완전히 팽창시켜서 최종제품을 얻는 스텝으로 이루어진 것을 특징으로 하는 열가소성 수지 가교 발포체의 제조방법.
  2. 제1항에 있어서, 상기 부분 발포 성형체의 팽창비를 M1, 상기 최종제품의 팽창비를 M2로 한때, M1 및 M2 사이에, M1/M20.525 (단 M11.05, M22.00임)의 관계가 성립하도록, 상기 수지 조성물을 부분 발포시키는 가교 발포체의 제조방법.
  3. 제2항에 있어서, 상기 M1 및 M2사이에, 0.05M1/M20.35의 관계가 성립하도록, 상기 수지 조성물을 부분 팽창시키는 가교 발포체의 제조방법.
  4. 제1항에 있어서, 상기 다이의 가열영역에 있어서, 내부 압력이 10∼70kgh/㎤이 되도록 상기 수지 조성물을 다이내에 압출하는 가교 발포체의 제조방법.
  5. 제1항에 있어서, 상기 열가소성 수지가 폴리올레핀으로 이루는, 가교 발포체의 제조방법.
  6. 적어도 열가소성 수지, 발포제 및 가교제를 함유하는 수지 조성물을 압출하는 압출기, 이 압출기의 출구에 연이 설치되고, 적어도 성형영역, 가열영역 및 냉각영역을 갖고, 상기 성형영역에 있어서, 상기 압출기로 부터 공급된 수지 조성물을 소요의 형상으로 성형하고, 상기 가열 영역에 있어서, 상기 소요의 형상으로 성형된 수지 조성물을 가열하여 상기 가교제를 분해시킴과 동시에 상기 발포제의 적어도 일부를 분해시켜서 기포핵을 생성시킴에 의해 부분 발포성형체를 성형하고, 상기 냉각영역에 있어서, 상기 부분 발포성형제를, 이 성형체의 연화점 미만의 온도로 냉각하고, 이 냉각된 부분 발포성형체가 이 냉각영역을 이동할때, 부분 발포성형체에 제동력을 부여하는 밀폐 다이, 그리고 이 다이에서 압출된 부분 발포성형체를 정상입력하에서 가열하고, 상기 발포체를 완전 팽창시켜서 최종 제품을 얻는 가열수단, 상기 다이의 냉각영역은, 상기 부분 발포성형제가 그 연화점 미만의 온도까지 냉각된 지점부터 출구측에 있어서 이 냉각영역의 입구단면적 보다 작은 단면적 부분으로 구성되는 것을 특징으로 하는 열가소성 수지 가교 발포체의 제조방법.
  7. 제6항에 있어서, 상기 다이의 냉각영역은, 그곳을 이동하는 부분 발포성형체의 단면적을 점차 감소시키는 단면 형상을 갖는 가교 발포체의 제조방법.
  8. 제6 또는 7항에 있어서, 상기 냉각영역의 입구단면적 S1, 상기 부분 발포형성체가 그 연화점 미만의 온도에 까지 냉각된 위치의 단면적을 S2로 한때 S1및 S2사이에, 0.50S2/S10.90의 관계가 성립되는 있는 가교 발포체의 제조장치.
  9. 제6항에 있어서, 상기 부분 발포성형체가 그 연화점 미만의 온도에 까지 냉각된, 상기 냉각영역의 소망의 개소에, 상기 부분 발포성형체의 단면적을 변화시키는 것이 가능한 단면적 가변 수단을 배치하여, 상기 부분 발포성형체에 제동력을 부여하는 가교 발포체의 제조장치.
  10. 제9항에 있어서, 상기 단면적 가변 수단이, 초크바이 가교발포체의 제조장치.
  11. 제9항에 있어서, 상기 단면적 가변 수단이, 그곳을 이동하는 부분 발포성형체의 단면적을 연속적으로 감소시키는 수단인 가교 발토체의 제조장치.
  12. 제6항에 있어서, 상기 부분 발포성형체의 발포배율을 M1, 상기 최종제품의 발포배율을 M2로 한때, M1및 M2사이에 M1/M20.525 (단 M11.05, M22.00임)의 관계가 성립하도록, 상기 다이의 가열 영역으로 수지 조성물을 부분 발포시키는 가교 발포체의 제조장치.
  13. 제12항에 있어서, 상기 M1및 M2사이에, 0.05M1/M20.35의 관계가 성립하도록, 상기 수지 조성물을 부분 발포시키는 가교 발포체의 제조장치.
  14. 제6항에 있어서, 상기 압출기는 상기 다이의 가열영역에 있어서, 내부압력이 10∼70kgf/㎤이 되도록 상기 수지 조성물을 다이내에 가압하여 압출하는 가료 발포제의 제조장치.
  15. 제6항에 있어서, 상기 열가소성 수지가 폴리 올레핀으로 이루는 가교 발포체의 제조장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910003196A 1990-09-17 1991-02-27 열 가소성 수지 가교 발포체의 제조방법 및 장치 KR920006419A (ko)

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JP2246724A JPH04126733A (ja) 1990-09-17 1990-09-17 架橋発泡体の製造方法

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JP3273487B2 (ja) * 1995-06-06 2002-04-08 株式会社フジクラ ポリオレフィン系樹脂発泡パイプの製造方法
DE19849263C2 (de) * 1998-10-26 2003-06-12 Moeller Plast Gmbh Verfahren zur Herstellung eines Bauteils durch Coextrusion
JP4741857B2 (ja) * 2005-02-25 2011-08-10 東芝機械株式会社 フィルム・シート成形用ダイス
CN102862256B (zh) * 2012-09-28 2015-08-26 浙江精诚模具机械有限公司 防结皮发泡板模头
NL2012994B1 (en) 2014-06-12 2016-07-04 Ten Cate Nederland B V Foamed fabric.
JP6710593B2 (ja) * 2015-06-29 2020-06-17 三ツ星ベルト株式会社 押出成形用金型
WO2021045888A1 (en) * 2019-09-02 2021-03-11 Dow Global Technologies Llc Apparatus and method for applying a foaming reaction mixture onto a laminator

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DE3708291A1 (de) * 1987-03-14 1988-09-22 Basf Ag Verfahren zur herstellung von polyolefinschaumstoffen

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DE69110224D1 (de) 1995-07-13
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AU7136691A (en) 1992-03-19
CN1059867A (zh) 1992-04-01
FI910855A (fi) 1992-03-18
DE69110224T2 (de) 1995-11-02
AU641981B2 (en) 1993-10-07
HUT61924A (en) 1993-03-29
EP0476798A2 (en) 1992-03-25
FI910855A0 (fi) 1991-02-22
EP0476798B1 (en) 1995-06-07

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