DE3900854A1 - Process for reinforcing plastics foam - Google Patents
Process for reinforcing plastics foamInfo
- Publication number
- DE3900854A1 DE3900854A1 DE19893900854 DE3900854A DE3900854A1 DE 3900854 A1 DE3900854 A1 DE 3900854A1 DE 19893900854 DE19893900854 DE 19893900854 DE 3900854 A DE3900854 A DE 3900854A DE 3900854 A1 DE3900854 A1 DE 3900854A1
- Authority
- DE
- Germany
- Prior art keywords
- foam
- plaster
- undercut
- plastics foam
- plastic
- 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.)
- Granted
Links
Classifications
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/82—Forcing wires, nets or the like partially or completely into the surface of an article, e.g. by cutting and pressing
-
- 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
- B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Armierung von Kunst stoffschaum mit Geweben und/oder Fasern oder dergleichen.The invention relates to a method for reinforcing art foam material with fabrics and / or fibers or the like.
Kunststoffschaum hat nach seiner Herstellung nur eine äußerst geringe Biegefestigkeit. Das führt dazu, daß z.B. Platten aus Kunststoffschaum sehr leicht brechen. Um dem zu begegnen, ist es bekannt, Schaum einseitig mit einem armierten Putz zu verse hen. Bei dem Putz handelt es sich um mineralischen Putz. Der Putz besitzt nach dem bekannten Vorschlag eine Gewebeeinlage. Das erfüllt zwar den Zweck einer Armierung, hat aber verschie dene Nachteile. Zu den Nachteilen gehört u.a. das Transport gewicht und das Transportvolumen des Putzes. Erfahrungsgemäß ist es unwirtschaftlich, Massengüter wie Putzmörtel über längere Entfernungen zu transportieren, wenn der Putz auch örtlich verfügbar ist. Ein anderer Nachteil ist die an sich geringe Haftung des Putzes an der Oberfläche des Kunststoffschaumes. Die bekannten Kunststoffschaumplatten sind deshalb an der Ober fläche sehr stark aufgerauht.Plastic foam has only one extreme after its production low bending strength. As a result, e.g. Plates out Break plastic foam very easily. To counter this is it is known to verse foam on one side with a reinforced plaster hen. The plaster is mineral plaster. The According to the known proposal, plaster has a fabric insert. Although this serves the purpose of reinforcement, it has a variety of uses disadvantages. The disadvantages include the transport weight and the transport volume of the plaster. According to experience it is uneconomical to bulk goods like plaster over long periods Transport distances when the plaster is also local is available. Another disadvantage is that it is small in itself Adhesion of the plaster to the surface of the plastic foam. The known plastic foam panels are therefore on the upper surface very roughened.
Gemäß der deutschen Patentanmeldung P 38 22 933 ist deshalb vorgeschlagen worden, zur einfacheren und wirtschaftlich günsti geren Armierung von Kunststoffschaum das als Armierung dienende Gewebe und/oder Fasern oder dergleichen heiß in den Schaum einzudrücken. Der so gewonnene Kunststoffschaum besitzt eine verhältnismäßig hohe Biegefestigkeit, so daß ein Armierungs putz entbehrlich ist.According to German patent application P 38 22 933 is therefore has been proposed for simpler and more economical The reinforcement of plastic foam serves as reinforcement Fabrics and / or fibers or the like hot in the foam indentation. The plastic foam obtained in this way has one relatively high flexural strength, so that a reinforcement plaster is unnecessary.
Gleichwohl kann ein Verputzen bzw. die Anbringung einer Mörtel schicht an dem armierten Kunststoffschaum gewünscht werden. Die Aufbringung von Mörtel kann z.B. zur Anbringung von Fliesen dienen. Nevertheless, plastering or applying a mortar layer on the reinforced plastic foam. The application of mortar can e.g. for attaching tiles serve.
Der zusätzlich gewünschte Putz kann ein reiner Sichtputz sein.The additionally required plaster can be a pure visible plaster.
Der Erfindung liegt die Aufgabe zugrunde, die Haftung zwischen den armierten Kunststoffplatten und dem Putz bzw. Mörtel zu verbessern. Nach der Erfindung wird das dadurch erreicht, daß Muster in die Kunststoffschaumfläche gedrückt werden und die Eindrücke mindestens an einer Seite eine Hinterschneidung bil den. Die Hinterschneidung hat nach der Erfindung wahlweise eine Tiefe bis zu 1 mm. Die Muster können rautenförmig oder in anderer Weise gestaltet sein, wobei die Einzelflächen vor zugsweise eine Größe bis 100 mm2 besitzen.The invention has for its object to improve the adhesion between the reinforced plastic plates and the plaster or mortar. According to the invention this is achieved in that patterns are pressed into the plastic foam surface and the impressions bil the undercut at least on one side. According to the invention, the undercut optionally has a depth of up to 1 mm. The patterns can be diamond-shaped or designed in another way, the individual surfaces preferably having a size of up to 100 mm 2 .
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawing is an embodiment of the invention shown.
In der Zeichnung ist mit 1 extrudierter Polystyrolschaum bezeich net. Der Polystyrolschaum hat eine Dicke von 40 mm und ein Raumgewicht von 38 kg/m3. Der extrudierte Polystyrolschaum wird gemäß Fig. 1 auf Rollen 5 unter eine Walze 4 bewegt. Die Walze 4 ist an der Oberfläche profiliert. Sie hat ein Waffel profil bzw. rautenförmiges Profil, wie bei 6 abgebildet ist. Die Walze 4 ist auf 270°C erwärmt.In the drawing is labeled with 1 extruded polystyrene foam. The polystyrene foam has a thickness of 40 mm and a density of 38 kg / m 3 . The extruded polystyrene foam is moved according to FIG. 1 on rollers 5 under a roller 4 . The roller 4 is profiled on the surface. It has a waffle profile or diamond-shaped profile, as shown at 6 . The roller 4 is heated to 270 ° C.
Zusammen mit dem Polystyrolschaum 1 werden Glasgittergewebe 2 und eine Kunststoffbahn 3 in den Walzenspalt geführt. Die Kunst stoffbahn 3 besteht im Ausführungsbeispiel aus 3 mm dickem Polystyrolschaum gleichen Raumgewichts wie der Polystyrolschaum 1.Together with the polystyrene foam 1 , glass mesh fabric 2 and a plastic sheet 3 are guided into the nip. The plastic web 3 consists in the embodiment of 3 mm thick polystyrene foam of the same density as the polystyrene foam 1st
Die Glasgittermatte hat Maschenweiten von 5×10 mm. Die Maschen weiten können in weiten Grenzen variieren. Aus der Zeichnung ist ersichtlich, daß die Fasern in dem Glasgittergewebe in Längsrichtung des Schaumstoffs 1 und quer dazu verlaufen. The glass grid mat has mesh sizes of 5 × 10 mm. The mesh sizes can vary within wide limits. From the drawing it can be seen that the fibers in the glass mesh run in the longitudinal direction of the foam 1 and transversely thereto.
Unter der aufgeheizten Walze 4 wird die Kunststoffbahn 3 plasti fiziert und mit der Glasgittermatte 2 gegen die Oberfläche des Polystyrolschaumstoffes 1 gedrückt. Der Walzenandruck ist so gewählt, daß das sich von der Glasgittermatte unterschei dende Walzenprofil sich in der Oberfläche des Schaumstoffrie gels 1 abbildet. Von dem Glasgittergewebe 2 und der Kunststoff bahn 3 ist im Bereich 6 bei flüchtiger Betrachtung nichts mehr erkennbar.Under the heated roller 4 , the plastic sheet 3 is plasti fied and pressed with the glass grid mat 2 against the surface of the polystyrene foam 1 . The roller pressure is selected so that the roller profile differing from the glass grid mat is formed in the surface of the foam gel 1 . From the glass mesh fabric 2 and the plastic sheet 3 is no longer recognizable in area 6 at a glance.
Fig. 2 zeigt die Abbildung eines hergestellten Musters. Dabei sind rautenförmige Vertiefungen 10 ersichtlich, zwischen denen Stege 11 angeordnet sind. Fig. 2 shows the image of a pattern produced. Diamond-shaped depressions 10 can be seen, between which webs 11 are arranged.
Fig. 3 läßt erkennen, daß die Stege 11 eine Hinterschneidung besitzen. Die Hinterschneidung hat das Maß a. Im Ausführungsbei spiel beträgt das Maß a 0,5 mm. Infolge der Hinterschneidung kann eine Verkrallung des Mörtels in den Vertiefungen stattfin den. Fig. 3 shows that the webs 11 have an undercut. The undercut has the dimension a . In the exemplary embodiment, dimension a is 0.5 mm. As a result of the undercut, the mortar may become clawed in the recesses.
In Fig. 3 ist das Maß der Eindrucktiefe mit b bezeichnet. Das Maß b beträgt vorzugsweise bis 3 mm.In Fig. 3 the measure of the indentation depth is designated by b. The dimension b is preferably up to 3 mm.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893900854 DE3900854C2 (en) | 1988-07-07 | 1989-01-13 | Process for reinforcing plastic foam |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3822933A DE3822933A1 (en) | 1988-07-07 | 1988-07-07 | Process for reinforcing plastic foam |
DE19893900854 DE3900854C2 (en) | 1988-07-07 | 1989-01-13 | Process for reinforcing plastic foam |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3900854A1 true DE3900854A1 (en) | 1990-07-19 |
DE3900854C2 DE3900854C2 (en) | 1996-02-29 |
Family
ID=25869811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893900854 Expired - Fee Related DE3900854C2 (en) | 1988-07-07 | 1989-01-13 | Process for reinforcing plastic foam |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3900854C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4217934A1 (en) * | 1992-05-30 | 1993-12-02 | Burkhart Schurig | Lightweight reinforced high strength foam filled component - contains grid pattern of flat e.g. steel or plastic strips embedded in the foam close to the surface exposed to tension stresses |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT185567B (en) * | 1953-12-09 | 1956-05-11 | Hutter & Schrantz Ag Siebwaren | Process for the production of bodies reinforced with fabric coverings or the like |
DE3822933A1 (en) * | 1988-07-07 | 1990-01-11 | Gefinex Jakon Gmbh | Process for reinforcing plastic foam |
-
1989
- 1989-01-13 DE DE19893900854 patent/DE3900854C2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT185567B (en) * | 1953-12-09 | 1956-05-11 | Hutter & Schrantz Ag Siebwaren | Process for the production of bodies reinforced with fabric coverings or the like |
DE3822933A1 (en) * | 1988-07-07 | 1990-01-11 | Gefinex Jakon Gmbh | Process for reinforcing plastic foam |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4217934A1 (en) * | 1992-05-30 | 1993-12-02 | Burkhart Schurig | Lightweight reinforced high strength foam filled component - contains grid pattern of flat e.g. steel or plastic strips embedded in the foam close to the surface exposed to tension stresses |
Also Published As
Publication number | Publication date |
---|---|
DE3900854C2 (en) | 1996-02-29 |
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Legal Events
Date | Code | Title | Description |
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AF | Is addition to no. |
Ref country code: DE Ref document number: 3822933 Format of ref document f/p: P |
|
8162 | Independent application | ||
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: B29C 44/12 |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GEFINEX-JACKON GMBH, 29416 MECHAU, DE |
|
8339 | Ceased/non-payment of the annual fee |