DE1504731A1 - Process for the production of non-shrink panels, in particular floor or wall panels, molded parts or the like. made of thermoplastic material - Google Patents
Process for the production of non-shrink panels, in particular floor or wall panels, molded parts or the like. made of thermoplastic materialInfo
- Publication number
- DE1504731A1 DE1504731A1 DE19651504731 DE1504731A DE1504731A1 DE 1504731 A1 DE1504731 A1 DE 1504731A1 DE 19651504731 DE19651504731 DE 19651504731 DE 1504731 A DE1504731 A DE 1504731A DE 1504731 A1 DE1504731 A1 DE 1504731A1
- Authority
- DE
- Germany
- Prior art keywords
- panels
- molded parts
- ultrasound
- shrink
- carried out
- 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.)
- Pending
Links
Classifications
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/008—Using vibrations during moulding
-
- 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
- B29C48/03—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
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/03—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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
-
- 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
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Floor Finish (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
"Verfahren zur Herstellung von schrumpffreien Platten, insbesondere Fußboden- oder Wandplatten, Formteilen oder dergleichen aus thermoplastischem Kunststoff" Bei den bisher üblichen Verfahren zur Herstellung von Platten, Formteilen uAd-dergleichen aus thermoplastischem Kunststoff, wie beispielsweise beim Kalander-, Press-, Extruder- oder Spritzgußverfahren, werden die thermoplastischen Kunststoffe bei erhöhten Temperaturen verformt. Dabei entstehen in den Erzeugnissen innere Spannungen, die zu nachträglichen Schrumpfungen rühren können. Zur Verminderung bzw. Beseitigung dieser inneren Spannungen werden die Erzeugnisse im allgemeinen einer nachträglichen Wärmebehandlung unterworfen. Das bekannteste Verfahren dieser Art ist das sogenannte Tempern, das in verschiedenen Formen durchgeführt wird. Trotz der genannten Nachbehandlungsverfahren lassen sich nachträgliche Schrumpfungen nicht in jedem Falle vollständig vermeiden."Process for the production of non-shrink panels, in particular Floor or wall panels, molded parts or the like made of thermoplastic material " In the previously customary processes for the production of plates, molded parts and the like made of thermoplastic material, such as in the calender, press, extruder or injection molding processes, the thermoplastics are processed at elevated temperatures deformed. This creates internal tensions in the products that lead to subsequent Shrinkage can stir. To reduce or eliminate these internal tensions the products are generally subjected to a subsequent heat treatment. The best-known process of this type is the so-called tempering, which is used in various Forming is carried out. Despite the post-treatment methods mentioned, Subsequent shrinkage cannot be completely avoided in every case.
Die Erfindung hat sich zur Aufgabe gesetzt, ein Verfahren zu schaffen, mit welchem man ohne Nachbehandlungsverfahren auf wirtschaftliche und sichere Weise zu schrumpffrelen Platten, Formteilen und dergleichen aus thermoplastischem Kunststoff gelangt.The invention has set itself the task of creating a method which can be used economically and safely without any post-treatment procedures to shrink plates, molded parts and the like made of thermoplastic material got.
Das Verfahren gemäß der Erfindung ist dadurch gekennzeichnet, daß man eine aus thermoplastischem Kunststoff ohne Einwirkung von Wärme gefertigte knetbare Masse ohne Wärmezufuhr zu einem endlosen Strang, insbesondere Band, formt, daraus Platten bzw.The method according to the invention is characterized in that one made of thermoplastic material without the action of heat is kneadable Mass is formed from it into an endless strand, in particular a ribbon, without the supply of heat Plates or
Formteile herstellt, deren Abmessungen geringfügig über den gewünschten Endabmessungen liegen, und die so hergestellten Gebilde mit Ultraschall behandelt, geliert und anschließend auf genaue Endabmessungen bringt und abkühlt. Dabei wird dem thermoplastischen Kunststoff bei allen Misch- und Verformungsvorgängen bis zur Gelierung keine Wärme von außen zugeführt, damit im Material nur möglichst geringe innere Spannungen. entstehen. Diese geringen Spannungen werden durch die Ultraschallbehandlung beseitigt. Die so erhaltenen entschrumpften Gebilde werden sodann geliert, auf maßbe-tändige:--Endabmessungen gebracht-. und abgekühlt.Manufactures molded parts whose dimensions are slightly above the desired Final dimensions are, and the structures produced in this way are treated with ultrasound, gelled and then brought to exact final dimensions and cooled. It will the thermoplastic in all mixing and deformation processes up to Gelation no heat supplied from outside, so in the material only Internal stresses as low as possible. develop. These low voltages will be eliminated by the ultrasound treatment. The shrink-wrapped structures obtained in this way are then gelled, to dimensionally stable: - final dimensions -. and cooled down.
Ein weiterer Vorteil des Verfahrens besteht darin, daß -die vor der Gelierung anfallenden Abfälle unmittel bar -der -krietbaren Masse wieder zugeführt werden können.Another advantage of the method is that -the before Gelling of the accumulated waste immediately returned to the cretable mass can be.
Zur Behandlung der Platten bzw. Formteile mit Ultraschall ist besonders eine Ultraschallstrene geeignet.For the treatment of the plates or molded parts with ultrasound is special suitable for an ultrasound line.
Nach einem weiteren Merkmal der Erfindung können die Oberflächen der Platten bzw. Formteile nach der Gelierung veredelt, insbesondere mattiert undZoder geprägt werden. Mit einer Prägung der Unterseite der Platten kann insbesondere auch eine Verbesserung der Haftung bei Verklebung erzielt werden.According to a further feature of the invention, the surfaces of the Plates or molded parts refined after gelling, in particular matted andZoder be embossed. With an embossing of the underside of the plates can in particular also an improvement in the adhesion can be achieved during gluing.
Zweckmäßigerweise können die Oberflächerveredlung, Endbeschneidung und Abkühlung gleichzeitig durchgerührt werden.Expediently, surface refinement, end trimming and cooling can be carried out at the same time.
Nach dem Verfahren gemäß der Erfindung können auch mehrschichtige Platten, deren einzelne Schichten gleiche oder unterschiedliche Zusammensetzung, z.B. auch Asbestzusatz zur Erhöhung der Brennfestigkeit, aufweisen können, hergestellt werden, und zwar besonders vorteilhaft in der Weise, daß die einzelnen Schichten gegeneinander um 90 Grad gedreht liegen, wobei die orientierten Molekülketten gekreuzt zu liegen kommen, und die Verschweißung der Schichten beim Gelieren erfolgt.According to the method according to the invention, multi-layered Panels, the individual layers of which have the same or different composition, e.g. also asbestos additive to increase the fire resistance be, and particularly advantageous in such a way that the individual layers are rotated by 90 degrees with respect to each other, whereby the oriented molecular chains are crossed come to rest, and the layers are welded together when they gel.
Nach einem weiteren Merkmal der Erfindung können auch 2 Bänder aus knetbarer Masse in einem Winkel von 90 Grad übereinander laufen und die Stanzung und weitere Behandlung der zweischichtigen Platten in einem Arbeitsgang erfolgen.According to a further feature of the invention, 2 bands can also be made of kneadable mass run over each other at an angle of 90 degrees and the punching and further treatment of the two-layer panels are carried out in one operation.
Anhand eines-Ausfuhrungsbeispiels wird die Erfindung näher erläutert.The invention is explained in more detail using an exemplary embodiment.
Aus geeignetem Polyvinylchlorid, Weichmacher, Stabilisator, Farb- und Füllstoff wird eine gut knet- und formbare Masse hergestellt. Je nach den gewünschten Eigenschaften des Endprodukts kann die Rezeptur beliebig eingestellt werden. Dabei können auch Füllstoffe nicht herkömmlicher Art, wie z.B.Made of suitable polyvinyl chloride, plasticizer, stabilizer, color and filler, an easily kneadable and malleable mass is produced. Depending on the desired The recipe can be adjusted as required for the properties of the end product. Included fillers of a non-conventional type, e.g.
Rheinsand, benutzt werden. Für eine besonders preisgünstige Platte kann man z.B. folgende Zusammensetzung verwenden: 100 Teile PVC SP 70 30 Teile Mesamoll 30 Teile DOP 1 Teil 1212 A 200 Teile Rhe-insand 160 Teile Jurakreide Mit einem Teil des Polyvinylchlorids werden die übrigen Bestandteile gut gemischt und dann wird das restliche Polyvinylchlorid zugesetzt. Diese gut knetbare Masse wird auf einer Schneckenpresse zu einem endlosen Band verformt. Nach Austritt aus der Breitschlitzdüse läuft das Band aus knetbarer Masse auf einen Mitläufer und wird hierauf zu Platten, deren Abmessungen etwa 10 % über dem gewünschten Endmaß liegen, geschnitten oder gestanzt. Man kann z. B. auch mit einer Stanzwalze arbeiten. Um ein Kleben zu verhindern, kann das Band z.B. mit Talkum eingepudert werden. Die Schneide- und Stanzabfälle werden sofort wieder mitverarbeitet. Von der Herstellung der Mischung bis zur vorgefertigten Platte wird keine Wärme von außen zugeführt. Die so hergestellten Platten aus knetbarer Masse laufen nun durch ein Ultraschallfeld und anschließend durch einen Gelierkanal. Nach Austritt aus dem Gelierkanal werden die Platten in warmem Zustand in eine Presse gelegt, zur Oberflächenveredlung leicht gepreßt, auf die Endabmessung gestanzt und gekühlt.Rhine sand, can be used. For a particularly inexpensive plate you can use the following composition, for example: 100 parts PVC SP 70 30 parts Mesamoll 30 parts DOP 1 part 1212 A 200 parts Rheinsand 160 parts Jurassic chalk With one part of the polyvinyl chloride, the remaining ingredients are mixed well and then becomes the remaining polyvinyl chloride was added. This easily kneadable mass is made on a Screw press formed into an endless belt. After exiting the slot nozzle the band of kneadable mass runs on a follower and then becomes plates, whose dimensions are about 10% above the desired final dimension, cut or punched. You can z. B. also work with a punching roller. To prevent sticking, the tape can be powdered with talcum powder, for example. The cutting and punching waste are processed again immediately. From the preparation of the mixture to the pre-made one No external heat is supplied to the plate. The plates made in this way are made of kneadable Masses now run through an ultrasonic field and then through a gelling channel. After exiting the gelation channel, the plates are placed in a press while they are still warm laid, lightly pressed for surface finishing, punched to the final dimension and chilled.
Die so hergestellten preisgünstigen Platten bleiben maßbeständig. Sie zeigen keinerlei Schrumpfungen. Sie lassen sich mit Zement, Wasserglas oder anderen billigen Bindemitteln befestigen oder verkleben.The inexpensive panels produced in this way remain dimensionally stable. They show no shrinkage. You let yourself with cement, Fasten or glue water glass or other cheap binders.
Werden harte bis steinharte Platten, z.B. für die Außenverkleidung von Gebäuden, gewünscht, so werden in der Rezeptur zweckm§ßigerweise polymerisierbare Weichmacher eingesetzt.Are hard to rock-hard panels, e.g. for exterior cladding of buildings, if desired, the formulation will conveniently be polymerizable Plasticizers used.
Zur Herstellung von mehrschichtigen Platten können mehrere Anlagen Platten verschiedener Zusammensetzung fertigen, die nach dem Vorformen in bestimmter Reihenfolge aufeinandergelegt und in entsprechender Weise weiterbehandelt werden.Several plants can be used for the production of multi-layer panels Manufacture sheets of different composition, which after preforming in certain Sequence placed on top of one another and treated further in a corresponding manner.
Dabei können auch, z.B. als Laufschicht einer Fußbodenplatte, kalandrierte Folien mitverwendet werden. Man stanzt zu diesem Zweck aus der Folienbahn eine Platte mit etwa 10 % größeren Abmessungen aus, entschrumpft diese Folienplatte bei erhöhter Temperatur bzw. mit Hilfe von Ultraschall, kühlt ab und stanzt daraus eine Platte, die zur Herstellung von mehrschichtigen Platten gemäß dem erfindungsgemäßen Verfahren verwendet wird.Calendered sheets can also be used, for example, as the running layer of a floor slab Foils can also be used. For this purpose, a plate is punched out of the film web with about 10% larger dimensions, this film plate shrinks when it is increased Temperature or with the help of ultrasound, cools down and punches a plate out of it, those for the production of multilayer boards according to the method according to the invention is used.
Nach dem Verfahren gemäß der Erfindung können nicht nur ein-oder mehrschichtige Platten, sondern auch Formteile, wie Profile, Bauteile, insbesondere Fenster- oder Türrahmen, und dergleichen, hergestellt werden.The method according to the invention can not only be single-layer or multi-layer Plates, but also molded parts, such as profiles, components, in particular window or Door frames and the like.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP0036965 | 1965-06-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1504731A1 true DE1504731A1 (en) | 1969-04-10 |
DE1504731B2 DE1504731B2 (en) | 1971-03-11 |
Family
ID=7375041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19651504731 Pending DE1504731B2 (en) | 1965-06-03 | 1965-06-03 | METHOD FOR PRODUCING SHRINK-FREE MOLDED PARTS, IN PARTICULAR PLATES MADE OF THERMOPLASTIC PLASTIC |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1504731B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199236A2 (en) * | 1985-04-26 | 1986-10-29 | Bayer Ag | Plastic articles with a quasi dielectric isotropic structure |
EP0330228A2 (en) * | 1988-02-25 | 1989-08-30 | Mitsubishi Plastics Industries Limited | Method for folding a plastic sheet |
-
1965
- 1965-06-03 DE DE19651504731 patent/DE1504731B2/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199236A2 (en) * | 1985-04-26 | 1986-10-29 | Bayer Ag | Plastic articles with a quasi dielectric isotropic structure |
EP0199236A3 (en) * | 1985-04-26 | 1988-08-03 | Bayer Ag | Plastic articles with a quasi dielectric isotropic structure |
EP0330228A2 (en) * | 1988-02-25 | 1989-08-30 | Mitsubishi Plastics Industries Limited | Method for folding a plastic sheet |
EP0330228A3 (en) * | 1988-02-25 | 1990-09-12 | Mitsubishi Plastics Industries Limited | Method for folding a plastic sheet |
Also Published As
Publication number | Publication date |
---|---|
DE1504731B2 (en) | 1971-03-11 |
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