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WO2014138827A1 - Procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé - Google Patents

Procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé Download PDF

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Publication number
WO2014138827A1
WO2014138827A1 PCT/BR2013/000071 BR2013000071W WO2014138827A1 WO 2014138827 A1 WO2014138827 A1 WO 2014138827A1 BR 2013000071 W BR2013000071 W BR 2013000071W WO 2014138827 A1 WO2014138827 A1 WO 2014138827A1
Authority
WO
WIPO (PCT)
Prior art keywords
polyurethane
signs
pressed
road
waste
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/BR2013/000071
Other languages
English (en)
Portuguese (pt)
Inventor
Gilceu Antonio VIVAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/BR2013/000071 priority Critical patent/WO2014138827A1/fr
Publication of WO2014138827A1 publication Critical patent/WO2014138827A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • 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
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • 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
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B29K2075/02—Polyureas
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention patent relates to a process for the manufacture of road signs, technically known as "Vertical Traffic Signs", belonging to the field of road signs, more precisely they are used in urban areas. and on highways to inform users about road conditions, prohibitions, obligations, restrictions, warnings, etc., the process in question has been specially developed with a view to mainly reducing cost and improving technical characteristics. compared to other manufacturing techniques.
  • Road signs are used in urban areas and on highways to inform users of road conditions, prohibitions, obligations, restrictions, warnings, etc.
  • Plate shapes can be circular, square, octagonal, triangular and rectangular, with sizes smaller for urban areas and larger for highways and rural areas.
  • the state-of-the-art plate fabrication process is as follows: From a rectangular plate, the plate is cut to the desired size and geometry and drilled as required. Circular, octagonal and triangular plates leave leftovers from the plate from which they were cut. The plates then receive a hot dip galvanization (steel plates only) and a black paint on the back. The next step is the gluing of a reflective film on the front portion, and finally the gluing of the electronic cutout on the reflective film, with the plate information itself. The larger plates also need a reinforcement in the back, called "windbreak".
  • Another advantage is that they can be provided to government agencies, favoring a recycled product (complying with the solid waste law), and also solving the problem of slab theft, as well as corrosion in coastal and coal zones.
  • the process for manufacturing road signs with pressed polyurethane waste requires a relatively small manufacturing structure consisting of press, mill and mixer.
  • the "PROCESS FOR MANUFACTURING ROAD SIGNALING PLATE WITH PRESSED POLYURETHANE WASTE”, object of the present invention, is essentially characterized by being a method for manufacturing vertical road signs.
  • Called the process for manufacturing Road signs with pressed polyurethane waste are comprised of the following sequence:
  • Polyurethane waste is primarily separated from its contaminants such as plastic, paper, metals, and any materials other than polyurethane.
  • the decontaminated waste is crushed to the appropriate particle size. It may be between five (05) microns and thirty (30) millimeters. In general, smaller grains produce parts with better surface finish, better mold reproduction and higher rigidity; larger grains result in more flexible parts.
  • a resin is added to the polyurethane granules in proportion to the desired result.
  • the amount of half percent (0.5%) to forty percent (40%) of resin may be added on the weight of polyurethane granules. Best results are obtained by adding ten percent (10%) of isocyanates in general (both TDI and MDI, NDI, PMDI, etc); Smaller amounts of resin result in parts with lower mechanical properties, and larger amounts of resin add significant improvements in mechanical properties to parts.
  • Addition of the resin to the polyurethane granules should be done under agitation and until there is complete dispersion and homogenization of the components. Best results are obtained with a rotary shaft paddle shaker and agitation of at least thirty (30) minutes.
  • the polyurethane plus resin mixture should be deposited in an aluminum or other matrix material with good thermal conductivity, preheated, in which a special high temperature release agent has already been applied, and pressed until it compresses into the shape of the matrix.
  • Temperatures between fifty degrees centigrade (50 ° C) and three hundred and fifty degrees centigrade (350 ° C) may be used. Lower temperatures require longer pressing times and result in lighter colored parts with lower mechanical properties; Higher temperatures require shorter pressing times and result in darker colored parts with harder skin, higher abrasion resistance and better mechanical properties. Best results are obtained at two hundred and sixty degrees centigrade (260 ° C) for three (3) minutes.
  • the pressing pressure used may range from three kilograms per square centimeter (3kg / cm 2 ) to two hundred kilograms per square centimeter (200kg / cm 2 ). Lower pressures result in parts with lower density and lower mechanical properties and higher pressures result in parts with higher mechanical properties and higher density. The best results are obtained with pressures ranging from thirty kilograms per square centimeter (30kg / cm 2 ) to fifty kilograms per square centimeter (50kg / cm 2 ).
  • Two pressing methods can be employed, one compacting the polyurethane plus resin mixture to the desired pressure, and thereafter only maintaining the position of the die, not advancing or retreating, and another method, constant pressure is applied throughout healing process. In this method the part to be molded will gradually lose thickness and gain density.
  • the first method allows the manufacture of parts with better dimensional accuracy, and the second allows the manufacture of parts with higher density.
  • the pressing time may vary from one (1) minute to one hundred and twenty (120) minutes. Shorter times are suitable for thinner walled parts and longer times are suitable for thicker walled parts.
  • One thousand, one hundred and thirty grams (1,130g) of two hundred (200) micron average polyurethane granules are used to which one hundred and twenty-five grams (125g) of isocyanate (diphenylmethane diisocyanate - MDI) and ten grams ( 10g) of black pigment.
  • the matrix is heated to two hundred and sixty degrees centigrade (260 ° C), applied as a release agent and subsequently the polyurethane / binder resin mixture is deposited and pressed for three (3) minutes. This process results in a workpiece with a density of eight hundred kilograms per cubic meter (800kg / m 3 ), with mechanical properties very similar to those of wood of equal density.
  • Binder resin any isocyanate - or a mixture of them.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Road Paving Structures (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

L'invention concerne un procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé, consistant en une méthode de fabrication de plaques de signalisation de voies de roulement, relevant du domaine des articles de signalisation routière. Le grand inconvénient des éléments de signalisation de l'état de la technique, selon les fabricants de panneaux et les organismes gouvernementaux, réside dans le fait que : Les panneaux constitués d'acier, lorsqu'elles sont la cible de tirs, perdent leur protection superficielle et, rapidement, le processus de corrosion commence, ce qui réduit de manière significative leur durée de vie utile, d'où la perte du travail réalisé en cours de fabrication. Quant aux panneaux en aluminium, du fait de leur haute valeur en tant que matériau de rebut, ils sont fréquemment la cible de vols. Il en résulte un coût très élevé, qui pèse notamment sur le secteur routier. Afin de supprimer cet inconvénient, on a mis au point l'objet de la présente demande, désigné sous le nom de "procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé", ce procédé faisant intervenir un mélange de résidus broyés de polyuréthane rigide et d'isocyanate, pressés dans une matrice d'aluminium chauffée de façon appropriée.
PCT/BR2013/000071 2013-03-11 2013-03-11 Procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé Ceased WO2014138827A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000071 WO2014138827A1 (fr) 2013-03-11 2013-03-11 Procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000071 WO2014138827A1 (fr) 2013-03-11 2013-03-11 Procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé

Publications (1)

Publication Number Publication Date
WO2014138827A1 true WO2014138827A1 (fr) 2014-09-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2013/000071 Ceased WO2014138827A1 (fr) 2013-03-11 2013-03-11 Procédé de fabrication de panneaux de signalisation routière au moyen de résidus de polyuréthane pressé

Country Status (1)

Country Link
WO (1) WO2014138827A1 (fr)

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937249A1 (de) * 1989-11-09 1991-05-16 Basf Ag Dekorative formteile aus kunststoff-abfall
JPH0788865A (ja) * 1993-09-27 1995-04-04 Inoac Corp 廃棄ポリウレタン製品の圧縮成形方法
DE19601438A1 (de) * 1996-01-17 1997-07-24 Ostermann & Scheiwe Gmbh & Co Paneel für die Innenauskleidung von Räumen, insbesondere Feuchträumen
WO1999003661A1 (fr) * 1997-07-18 1999-01-28 Arcelik A.S. Procede permettant de recycler des dechets d'un materiau alveolaire de polyurethane comme matiere de depart dans la production d'un materiau composite et materiau composite produit selon ce procede
KR20000012801A (ko) * 1999-12-27 2000-03-06 이종섭 폐폴리우레탄을 이용한 경질 우레탄 폼 보온재의 제조방법
KR20010008243A (ko) * 2000-11-17 2001-02-05 이종철 폐폴리우레탄폼을 이용한 재생방법 및 그 재생품
KR100288605B1 (ko) * 1998-10-31 2001-05-02 이일석 폴리우레탄 폐자재를 이용한 자동차용 칩몰드 성형품의 제조방법
DE19957175A1 (de) * 1999-11-27 2001-05-31 Basf Ag Verfahren zur Herstellung von Formkörpern aus (i)zerkleinerten Kunststoffabfällen und (ii) Polyurethan-Bindemitteln
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KR20030003594A (ko) * 2001-07-03 2003-01-10 덕유주식회사 경질 폐우레탄폼을 재활용한 경질우레탄 패널
KR20030055420A (ko) * 2001-12-26 2003-07-04 석귀호 폐폴리우레탄을 활용한 샌드위치패널용 우레탄보드
KR20040036144A (ko) * 2002-10-23 2004-04-30 대한민국(관리부서:산림청 임업연구원) 폐기될 폴리우레탄 발포재의 액화방법 및 동 액화물을이용한 폴리우레탄 발포재의 제조방법
KR20040049947A (ko) * 2002-12-05 2004-06-14 이상호 폐 폴리우레탄 재생방법
KR100440831B1 (ko) * 2003-08-28 2004-07-19 삼광우레탈주식회사 폐 경질우레탄을 이용한 층간 소음 방지재의 제조방법
CN1526863A (zh) * 2003-09-25 2004-09-08 东华大学 一种聚氨酯纤维废弃物再生利用方法
KR20040098462A (ko) * 2003-05-15 2004-11-20 장기운 폐 폴리우레탄 재생 방법 및 재생 방법으로 얻어지는폴리우레탄
KR100831875B1 (ko) * 2007-10-17 2008-05-22 신후철 폴리우레탄 스크랩을 재생사용한 건축물 층간소음 방지재및 그 제조 방법
CN101376718A (zh) * 2008-08-13 2009-03-04 刘建平 一种废弃聚氨酯的回收利用方法
KR100974450B1 (ko) * 2009-03-27 2010-08-06 주식회사 넥스텍 폴리우레탄 잔사를 이용한 인공피혁의 제조 방법 및 상기 인공피혁용 재생폴리우레탄 수지의 제조 방법
CN102675733A (zh) * 2011-03-11 2012-09-19 同济大学 一种废旧聚氨酯和聚丙烯回收料制板材及其制造方法

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937249A1 (de) * 1989-11-09 1991-05-16 Basf Ag Dekorative formteile aus kunststoff-abfall
JPH0788865A (ja) * 1993-09-27 1995-04-04 Inoac Corp 廃棄ポリウレタン製品の圧縮成形方法
DE19601438A1 (de) * 1996-01-17 1997-07-24 Ostermann & Scheiwe Gmbh & Co Paneel für die Innenauskleidung von Räumen, insbesondere Feuchträumen
WO1999003661A1 (fr) * 1997-07-18 1999-01-28 Arcelik A.S. Procede permettant de recycler des dechets d'un materiau alveolaire de polyurethane comme matiere de depart dans la production d'un materiau composite et materiau composite produit selon ce procede
KR100288605B1 (ko) * 1998-10-31 2001-05-02 이일석 폴리우레탄 폐자재를 이용한 자동차용 칩몰드 성형품의 제조방법
DE19957175A1 (de) * 1999-11-27 2001-05-31 Basf Ag Verfahren zur Herstellung von Formkörpern aus (i)zerkleinerten Kunststoffabfällen und (ii) Polyurethan-Bindemitteln
KR20000012801A (ko) * 1999-12-27 2000-03-06 이종섭 폐폴리우레탄을 이용한 경질 우레탄 폼 보온재의 제조방법
CN1309144A (zh) * 2000-08-17 2001-08-22 东莞富增泡棉塑胶有限公司 废弃聚氨酯泡棉的回收利用方法
KR20010008243A (ko) * 2000-11-17 2001-02-05 이종철 폐폴리우레탄폼을 이용한 재생방법 및 그 재생품
KR20030003594A (ko) * 2001-07-03 2003-01-10 덕유주식회사 경질 폐우레탄폼을 재활용한 경질우레탄 패널
KR20030055420A (ko) * 2001-12-26 2003-07-04 석귀호 폐폴리우레탄을 활용한 샌드위치패널용 우레탄보드
KR20040036144A (ko) * 2002-10-23 2004-04-30 대한민국(관리부서:산림청 임업연구원) 폐기될 폴리우레탄 발포재의 액화방법 및 동 액화물을이용한 폴리우레탄 발포재의 제조방법
KR20040049947A (ko) * 2002-12-05 2004-06-14 이상호 폐 폴리우레탄 재생방법
KR20040098462A (ko) * 2003-05-15 2004-11-20 장기운 폐 폴리우레탄 재생 방법 및 재생 방법으로 얻어지는폴리우레탄
KR100440831B1 (ko) * 2003-08-28 2004-07-19 삼광우레탈주식회사 폐 경질우레탄을 이용한 층간 소음 방지재의 제조방법
CN1526863A (zh) * 2003-09-25 2004-09-08 东华大学 一种聚氨酯纤维废弃物再生利用方法
KR100831875B1 (ko) * 2007-10-17 2008-05-22 신후철 폴리우레탄 스크랩을 재생사용한 건축물 층간소음 방지재및 그 제조 방법
CN101376718A (zh) * 2008-08-13 2009-03-04 刘建平 一种废弃聚氨酯的回收利用方法
KR100974450B1 (ko) * 2009-03-27 2010-08-06 주식회사 넥스텍 폴리우레탄 잔사를 이용한 인공피혁의 제조 방법 및 상기 인공피혁용 재생폴리우레탄 수지의 제조 방법
CN102675733A (zh) * 2011-03-11 2012-09-19 同济大学 一种废旧聚氨酯和聚丙烯回收料制板材及其制造方法

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