DE1061507B - Process for the production of composite structures from outer layers with foam - Google Patents
Process for the production of composite structures from outer layers with foamInfo
- Publication number
- DE1061507B DE1061507B DEF12271A DEF0012271A DE1061507B DE 1061507 B DE1061507 B DE 1061507B DE F12271 A DEF12271 A DE F12271A DE F0012271 A DEF0012271 A DE F0012271A DE 1061507 B DE1061507 B DE 1061507B
- Authority
- DE
- Germany
- Prior art keywords
- outer layers
- foam
- composite structures
- lined
- fleeces
- 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
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Description
Verfahren zur Herstellung von Verbundkonstruktionen aus Deckschichten mit Schaumstoff Es sind Hartschaumstoff-Verbundkonstruktionen bekannt, die aus stabilen Deckschichten bestehen und deren Zwischenraum mit einem Hartschaumstoff ausgefüllt ist. Als Deckschichten können Metalle, Sperrholz und Kunststoffe aller Art Verwendung finden; als Schaumkern sind unter anderem vor allem harte Polyurethanschäume verwendet worden, da dieselben beim Ausschäumen eine gute Haftfähigkeit auf den Deckschichten zeigen. Solche Verbundkörper zeichnen sich bei guter Formstabilität durch große Leichtigkeit aus. Process for the production of composite structures from cover layers with foam There are known rigid foam composite structures made of stable There are cover layers and the space between them is filled with a rigid foam is. Metals, plywood and plastics of all kinds can be used as top layers Find; hard polyurethane foams are mainly used as the foam core since the same has good adhesion to the outer layers when foaming demonstrate. Such composite bodies are characterized by large dimensions with good dimensional stability Ease off.
Das Verfahren zur Herstellung von Verbundkonstruktionen durch Ausschäumen einer Hohlkonstruktion aus Deckschichten mit einem schaumfähigen Reaktionsgemisch gestattet es nunmehr, die spezifische Festigkeit solcher Formkörper bzw. der Schaumstoffkerne insbesondere in den äußeren Zonen zu verstärken, wodurch die Gebrauchsfestigkeit der Formkörper bzw. die Stützwirkung der Kerne ohne wesentliche Gewichtserhöhung der Gesamtkonstruktion verbessert wird. Kennzeichnend für das vorliegende Verfahren ist es, daß die Innenseiten der Deckschichten vor dem Einfüllen des schaumfähigen Reaktionsgemisches mit Geweben oder Vliesen ausgekleidet werden. The process of manufacturing composite structures by foaming a hollow construction made of outer layers with a foamable reaction mixture it now allows the specific strength of such molded bodies or the foam cores reinforce especially in the outer zones, increasing the durability the molded body or the supporting effect of the cores without a significant increase in weight the overall construction is improved. Characteristic of the present procedure it is that the insides of the cover layers prior to filling the foamable Reaction mixture are lined with fabrics or fleeces.
Durch einen derartigen Einbau von Glasfaservliesen oder Vliesen bzw. durchlässigen Geweben, etwa auf Basis synthetischer Fasern, findet eine gute Verstärkung statt, wobei die Vliese zweckmäßig so locker aufgebaut werden, daß das reaktions- und treibfähige Schaumstoffgemisch sie sehr leicht durchdringen kann. Es besteht ohne weiteres die Möglichkeit, die Abnahme der spezifischen Festigkeit der Formkörper oder Kerne zum Konstruktionsinnern hin noch dadurch zu variieren, daß man die Dichte der verwendeten Vliese zonenweise abstuft. Such an installation of glass fiber fleece or fleece or Permeable fabrics, e.g. based on synthetic fibers, find good reinforcement instead, whereby the fleeces are expediently built up so loosely that the reactive and blowing foam mixture can penetrate it very easily. It exists readily the possibility of the decrease in the specific strength of the molded body or to vary the cores towards the inside of the construction by changing the density of the nonwovens used.
Dieses Verfahren ist besonders wichtig für die Verbindung von Polyurethan-Schaumstoffen mit Deckschichten auf Polyesterharzbasis, die in sich durch Glasgewebe verstärkt sind. Bei diesem Verfahren kann erreicht werden, daß die erwähnten Vliese zum Teil auch in der Polyesterharz-Deckschicht verankert werden, wodurch der Gesamtkräftefluß günstig beeinflußt wird. This process is particularly important for joining polyurethane foams with cover layers based on polyester resin, which are reinforced by glass fabric are. With this method it can be achieved that the mentioned fleeces partly can also be anchored in the polyester resin top layer, whereby the overall flow of forces is favorably influenced.
Bei Verwendung von metallischen Deckschichten können zur Erhöhung der Haftfestigkeit zwischen dem durch Vliese in der Außenzone verstärkten Schaumstoffkern und der metallischen Deckschicht die letzteren vor dem Auskleiden mit den Geweben oder Vliesen mit Einstrichen aus Harzen auf Polyester- oder Polyurethanbasis versehen werden, wodurch eine überraschend gute Verankerung des Schaumstoffkernes, besonders bei Polyurethan-Schaumstoffen, auf den Deckschichten gewährleistet wird. When using metallic cover layers can increase the adhesive strength between the foam core reinforced by fleece in the outer zone and the metallic cover layer, the latter prior to lining with the fabrics or nonwovens coated with polyester or polyurethane-based resins be, whereby a surprisingly good anchoring of the foam core, especially in the case of polyurethane foams, is guaranteed on the outer layers.
Eine weitere Steigerung der spezifischen Festigkeit der Schaumkernrandzonen von Hartschaumstoff-Verbundkonstruktionen bei der Verwendung von verstärkenden Vliesen kann dadurch erreicht werden, daß die Vliese einer Vorbehandlung mit geeigneten Aktivatoren unterworfen werden, wodurch im Bereich der Vliesverstärkung der Schaumprozeß stark beschleunigt wird und noch höhere Festigkeiten im Bereich der Randzonen erzielt werden. A further increase in the specific strength of the foam core edge zones of rigid foam composite structures when using reinforcing fleeces can be achieved by pretreating the nonwovens with suitable Activators are subjected, whereby the foam process in the area of the nonwoven reinforcement is greatly accelerated and achieves even higher strengths in the area of the edge zones will.
Das neue Verfahren ist z. B. auch für die Herstellung von zylindrischen Körpern geeignet, wobei das Eintragen des treib- und schaumfähigen Gemisches im Rotationsguß erfolgt. The new method is e.g. B. also for the production of cylindrical Bodies suitable, with the entry of the blowing and foamable mixture in the Rotational casting takes place.
Das Verfahren der vorliegenden Erfindung ist für die Herstellung von Hartschaumstoff-Verbundkonstruktionen auf Polyurethanbasis geeignet, z. B. für Konstruktionen des Automobil-, Waggow, Schiff-, Flugzeug-, Haus- und Behälterbaues. Erwähnt seien folgende Beispiele: Türen, Fensterrahmen, Wandplatten, Akustikplatten, Deckenkonstruktionen, Dacheindeckung, Möbelbau, Waschbecken, Wannen, Behälter aller Art; Karosserieteile und ganze Karosserien für . Personen- und Lastkraftwagen, Waggonschalenelemente, Waggoneinbauteile; Rumpf, Flügel und Leitwerte, Landeklappen und Einbauteile des Flugzeuges; Boote, Flöße, Bojen und Schwimmkörper aller Art, Sportgeräte, wie Skier, Wasserskier; Isolierschalen, Kühlschränke, Kühlmöbel aller Art, Radiogehäuse, Gehäuse für Fernsehapparate, Verpackungsbehälter, Helme, insbesondere Tropenhelme, Platten für Flugzeugbahnen, Iglu-Konstruktionen. The method of the present invention is for manufacture suitable for rigid foam composite constructions based on polyurethane, e.g. B. for Constructions of the automobile, Waggow, ship, aircraft, house and container construction. The following examples may be mentioned: doors, window frames, wall panels, acoustic panels, Ceiling constructions, roofing, furniture construction, sinks, tubs, containers of all Kind; Body parts and whole bodies for. Passenger cars and trucks, wagon shell elements, Wagon fittings; Fuselage, wings and conductors, flaps and built-in parts of the Aircraft; Boats, rafts, buoys and floats of all kinds, sports equipment such as skis, Water skis; Insulating shells, refrigerators, refrigeration units of all kinds, radio housings, housings for television sets, packaging containers, helmets, in particular pith helmets, discs for airplanes, igloo constructions.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF12271A DE1061507B (en) | 1953-07-06 | 1953-07-06 | Process for the production of composite structures from outer layers with foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF12271A DE1061507B (en) | 1953-07-06 | 1953-07-06 | Process for the production of composite structures from outer layers with foam |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1061507B true DE1061507B (en) | 1959-07-16 |
Family
ID=7086965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF12271A Pending DE1061507B (en) | 1953-07-06 | 1953-07-06 | Process for the production of composite structures from outer layers with foam |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1061507B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2037558A1 (en) | 1970-07-29 | 1972-02-03 | Putzer Kunststofftechnik GmbH & Co, KG, 5300 Bonn Duisdorf | Inflatable woven fabric - incorporating tubular inserts contng expandable material |
DE3200355A1 (en) * | 1981-02-02 | 1982-10-21 | VEB Kraftfahrzeugwerk "Ernst Grube" Werdau, DDR 9620 Werdau | Process for producing glass-fibre polyester/polyurethane sandwich components subjected to high dynamic loads |
DE3118631A1 (en) * | 1981-05-11 | 1982-11-25 | Fritzmeier AG, 5036 Oberentfelden | "METHOD FOR PRODUCING SAILING OR SURFBOARDS" |
EP1503896A1 (en) * | 2002-04-19 | 2005-02-09 | Hunter Paine Enterprises, LLC | Composite structural material and method of making same |
US8181580B2 (en) | 2004-12-29 | 2012-05-22 | Coda Capital Mangement Group, LLC | Composite structural material and method of making the same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE831314C (en) * | 1948-10-02 | 1952-02-11 | Peter Hoppe Dipl Ing | Process for the production of profiled bodies |
DE836097C (en) * | 1948-11-26 | 1952-04-07 | Westinghouse Electric Corp | Process for the production of cell bodies from liquid phenol-aldehyde synthetic resin |
DE851851C (en) * | 1948-10-02 | 1952-10-09 | Bayer Ag | Process for the production of molded articles |
DE883959C (en) * | 1951-01-03 | 1953-07-23 | Rolf Moroni | Process for the production of leather-like, porous materials based on polyurethanes |
DE920210C (en) * | 1951-12-29 | 1954-11-15 | Bayer Ag | Process for the production of load-bearing lightweight composite structures made of plastics |
DE926362C (en) * | 1953-05-16 | 1955-04-14 | Carl Walther | Gaerm well made of solid polyurethane foam |
-
1953
- 1953-07-06 DE DEF12271A patent/DE1061507B/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE831314C (en) * | 1948-10-02 | 1952-02-11 | Peter Hoppe Dipl Ing | Process for the production of profiled bodies |
DE851851C (en) * | 1948-10-02 | 1952-10-09 | Bayer Ag | Process for the production of molded articles |
DE836097C (en) * | 1948-11-26 | 1952-04-07 | Westinghouse Electric Corp | Process for the production of cell bodies from liquid phenol-aldehyde synthetic resin |
DE883959C (en) * | 1951-01-03 | 1953-07-23 | Rolf Moroni | Process for the production of leather-like, porous materials based on polyurethanes |
DE920210C (en) * | 1951-12-29 | 1954-11-15 | Bayer Ag | Process for the production of load-bearing lightweight composite structures made of plastics |
DE926362C (en) * | 1953-05-16 | 1955-04-14 | Carl Walther | Gaerm well made of solid polyurethane foam |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2037558A1 (en) | 1970-07-29 | 1972-02-03 | Putzer Kunststofftechnik GmbH & Co, KG, 5300 Bonn Duisdorf | Inflatable woven fabric - incorporating tubular inserts contng expandable material |
DE3200355A1 (en) * | 1981-02-02 | 1982-10-21 | VEB Kraftfahrzeugwerk "Ernst Grube" Werdau, DDR 9620 Werdau | Process for producing glass-fibre polyester/polyurethane sandwich components subjected to high dynamic loads |
DE3118631A1 (en) * | 1981-05-11 | 1982-11-25 | Fritzmeier AG, 5036 Oberentfelden | "METHOD FOR PRODUCING SAILING OR SURFBOARDS" |
EP1503896A1 (en) * | 2002-04-19 | 2005-02-09 | Hunter Paine Enterprises, LLC | Composite structural material and method of making same |
EP1503896A4 (en) * | 2002-04-19 | 2007-04-18 | Hunter Paine Entpr Llc | Composite structural material and method of making same |
AP1847A (en) * | 2002-04-19 | 2008-05-09 | Hunter Paine Entpr Llc | Composite structural material with laminar covering and core, method of making same, and shipping patlet including same. |
AU2003234150B2 (en) * | 2002-04-19 | 2009-11-05 | Hunter Paine Enterprises, Llc | Composite structural material and method of making same |
US8181580B2 (en) | 2004-12-29 | 2012-05-22 | Coda Capital Mangement Group, LLC | Composite structural material and method of making the same |
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