DE4241646A1 - Improving, exploiting and or utilising plastics swollen in solvent - by e.g. adding material to them or their solvent and or removing substances and or changing their temp - Google Patents
Improving, exploiting and or utilising plastics swollen in solvent - by e.g. adding material to them or their solvent and or removing substances and or changing their tempInfo
- Publication number
- DE4241646A1 DE4241646A1 DE19924241646 DE4241646A DE4241646A1 DE 4241646 A1 DE4241646 A1 DE 4241646A1 DE 19924241646 DE19924241646 DE 19924241646 DE 4241646 A DE4241646 A DE 4241646A DE 4241646 A1 DE4241646 A1 DE 4241646A1
- Authority
- DE
- Germany
- Prior art keywords
- solvent
- plastic
- plastics
- swelling
- substances
- 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.)
- Withdrawn
Links
- 229920003023 plastic Polymers 0.000 title claims abstract description 40
- 239000004033 plastic Substances 0.000 title claims abstract description 40
- 239000002904 solvent Substances 0.000 title claims abstract description 21
- 239000000126 substance Substances 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 title claims abstract 8
- 230000008961 swelling Effects 0.000 claims abstract description 10
- 238000007872 degassing Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 3
- 238000001704 evaporation Methods 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- 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
- B29B17/02—Separating plastics from other materials
-
- 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- 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
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/065—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts containing impurities
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur gezielten Aufwertung und/oder Anwendung und/oder Verwertung von gequollenen Kunststoffen nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for targeted Appreciation and / or application and / or recovery of swollen plastics according to the generic term of Claim 1.
Es bestehen heute Verfahren, bei denen Kunststoffe in gelöster Form anfallen. Dies kann bei der Herstellung der Polymere und bei einigen in neuester Zeit durchgeführten Verfahren zum Recycling von Kunststoffen der Fall sein.There are processes today in which plastics in dissolved form. This can be in the making of the Polymers and some of the more recent ones Processes for recycling plastics.
Es existieren bisher keine Verfahren, bei denen mit Lösungsmitteln gequollene Kunststoffe anfallen.So far there are no procedures in which with Solvents swollen plastics.
Für die Aufbereitung, Anwendung und Verwertung von gequollenen Kunststoffen gibt es folglich keine Verfahren.For the preparation, application and recycling of there are therefore no swollen plastics Method.
Der im Patentanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, gezielt eine Aufwertung und/oder Anwendung und/oder Verwertung von gequollenen Kunststoffen durchzuführen.The invention specified in claim 1 is Problem based, targeted an upgrade and / or Application and / or recovery of swollen Perform plastics.
Dieses Problem wird durch die im Patentanspruch 1 aufgeführten Merkmale gelöst.This problem is solved by the in claim 1 listed features solved.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß die gequollenen Kunststoffe gezielt durch den Zusatz von Stoffen oder durch die Abtrennung von Stoffen zum oder vom Kunststoff und zum Quellungsmittel aufgewertet und angewendet bzw. verwertet werden können.The advantages achieved with the invention exist especially in that the swollen plastics deliberately by adding substances or by Separation of substances to or from plastic and Swelling agents upgraded and applied or recycled can be.
Die beim Gebrauch und bei der Aufarbeitung wie z. B. Zerkleinerung der Kunststoffe durch Alterung oder andere Einflüsse entstandenen abgebauten Polymerketten können gezielt durch Lösungsmittel aus dem Kunststoff entfernt werden. Gleichzeitig können im gequollenen Kunststoff vorhandene Monomere, aber auch lösliche Additive oder Beimischungen herausgelöst und somit entfernt werden. Durch diese Entfernung wird eine Verbesserung der Eigenschaften des Kunststoffes und somit eine Aufwertung durchgeführt. Die Anwendungsbreite des Kunststoffes gleicht dem der entsprechenden Neuware.The use and refurbishment such. B. Shredding of plastics through aging or others Influenced degraded polymer chains can deliberately removed from the plastic by solvents become. At the same time, the swollen plastic existing monomers, but also soluble additives or Admixtures are removed and thus removed. This removal will improve Properties of the plastic and thus an upgrade carried out. The application range of the plastic resembles that of the corresponding new goods.
Durch das Zusetzen von Beimischungen zu dem gequollenen Kunststoff kann eine zusätzliche Aufwertung erreicht werden.By adding admixtures to the swollen one Plastic can be upgraded further.
Gequollene Kunststoffe können aufgrund ihrer geringeren mechanischen Festigkeit ohne großen maschinellen Aufwand und mit wenig Energie einfach zu einer beliebigen Größe zerkleinert werden. Ein großer Vorteil besteht dabei darin, daß durch das schonende Verfahren keine Schädigung des Kunststoffes eintritt.Swollen plastics can because of their lower mechanical strength without great mechanical effort and easily with any energy to any size be crushed. There is a big advantage here in that no damage is caused by the gentle process of the plastic occurs.
Zur weiteren Anwendung bzw. Weiterverarbeitung der aufgewerteten gequollenen Kunststoffe besteht die Möglichkeit der Verwendung von Extrudern mit Entgasung, mit denen direkt Produkte, Halbzeuge oder Granulate hergestellt werden können.For further application or further processing of the upgraded swollen plastics Possibility of using extruders with degassing, with which directly products, semi-finished products or granules can be produced.
Die für spezielle Anwendungen benötigten bzw. sehr vorteilhaften gelösten Kunststoffe können leicht durch Zusatz von Lösungsmitteln zum Quellungsmittel oder durch Temperaturerhöhung erhalten werden. Die dafür benötigte Menge an Lösungsmittel und die zum Auflösen benötigte Zeit ist sehr gering. Das Auflösen der Kunststoffe durch Temperaturerhöhung stellt auch eine sehr vorteilhafte, da einfache Variante dar. In diesem Fall wird die Anwendungsbreite von Neukunststoffen sogar übertroffen, da diese erst aufwendig mit großen Mengen Lösungsmitteln gelöst werden müssen.The ones needed for special applications or very advantageous dissolved plastics can easily be through Addition of solvents to the swelling agent or by Temperature increase can be obtained. The one you need Amount of solvent and the amount needed to dissolve it Time is very short. Dissolving the plastics through Raising the temperature also represents a very beneficial represents a simple variant. In this case the Application range of new plastics even exceeded, because these are expensive with large amounts of solvents have to be solved.
Ein Ausführungsbeispiel der Erfindung wird im folgenden näher beschrieben.An embodiment of the invention is as follows described in more detail.
Aus mit Ethylacetat gequollenem Weich-Polyvinylchlorid-Stücken wird durch Behandeln mit der fünffachen Menge an Ethylacetat in einem Kolben unter Rühren mit einem Flügelrührer der Weichmacher herausgelöst. Gleichzeitig wird eine Zerkleinerung der Stücke erreicht. Nach anschließender Trocknung in einem Umluftofen wird ein granulatförmiges Hart-Polyvinylchlorid erhalten. Dies steht im Gegensatz zum beschränkten Anwendungsgebiet von Weich-Polyvinylchlorid für viele Anwendungen zur Verfügung.Made from pieces of soft polyvinyl chloride swollen with ethyl acetate is treated with five times the amount Ethyl acetate in a flask with stirring The plasticizer's wing stirrer is removed. At the same time the pieces are shredded. To subsequent drying in a forced air oven is a Granular hard polyvinyl chloride obtained. This stands in contrast to the limited area of application of Soft polyvinyl chloride for many applications Available.
Claims (14)
gezielt neue Stoffe dem Kunststoff zugesetzt werden können
und/oder gezielt bestimmte Stoffe aus dem Kunststoff abgetrennt werden können
und/oder durch Zusatz von Mitteln zu dem zum Quellen verwendeten Lösungsmittel und/oder durch Veränderung der Temperatur Kunststoffe aufgelöst und so für spezielle Anwendungen eingesetzt werden können.1. Process for the targeted upgrading and / or application and / or recycling of swollen plastics, characterized in that
targeted new substances can be added to the plastic
and / or specific substances can be separated from the plastic
and / or plastics can be dissolved by adding agents to the solvent used for swelling and / or by changing the temperature and can thus be used for special applications.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924241646 DE4241646A1 (en) | 1992-12-02 | 1992-12-02 | Improving, exploiting and or utilising plastics swollen in solvent - by e.g. adding material to them or their solvent and or removing substances and or changing their temp |
| PCT/DE1993/001120 WO1994012565A1 (en) | 1992-11-26 | 1993-11-25 | Process for recycling composite materials containing plastics |
| EP94900722A EP0670862A1 (en) | 1992-11-26 | 1993-11-25 | Process for recycling composite materials containing plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924241646 DE4241646A1 (en) | 1992-12-02 | 1992-12-02 | Improving, exploiting and or utilising plastics swollen in solvent - by e.g. adding material to them or their solvent and or removing substances and or changing their temp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4241646A1 true DE4241646A1 (en) | 1994-06-09 |
Family
ID=6474914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19924241646 Withdrawn DE4241646A1 (en) | 1992-11-26 | 1992-12-02 | Improving, exploiting and or utilising plastics swollen in solvent - by e.g. adding material to them or their solvent and or removing substances and or changing their temp |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4241646A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19503734A1 (en) * | 1995-02-04 | 1996-08-08 | Nordenia Verpackung Gmbh | Stabilising recycled polyolefin chips for reprocessing |
| CN103242543A (en) * | 2013-05-21 | 2013-08-14 | 湘潭市奥科工塑开发应用有限责任公司 | Foamed plastic instantizer, chlorine dissolution accelerating plastic and application |
-
1992
- 1992-12-02 DE DE19924241646 patent/DE4241646A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19503734A1 (en) * | 1995-02-04 | 1996-08-08 | Nordenia Verpackung Gmbh | Stabilising recycled polyolefin chips for reprocessing |
| CN103242543A (en) * | 2013-05-21 | 2013-08-14 | 湘潭市奥科工塑开发应用有限责任公司 | Foamed plastic instantizer, chlorine dissolution accelerating plastic and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8181 | Inventor (new situation) |
Free format text: THIELE, ANDREAS, 12043 BERLIN, DE KAEUFER, HELMUT, PROF. DR., 40822 METTMANN, DE HANEBECK, HANS, DR., 42327 WUPPERTAL, DE WOELZ, HANS, 45549 SPROCKHOEVEL, DE |
|
| 8139 | Disposal/non-payment of the annual fee |