AT234336B - Process for the production of building boards or moldings from organically bound wood wool - Google Patents
Process for the production of building boards or moldings from organically bound wood woolInfo
- Publication number
- AT234336B AT234336B AT337162A AT337162A AT234336B AT 234336 B AT234336 B AT 234336B AT 337162 A AT337162 A AT 337162A AT 337162 A AT337162 A AT 337162A AT 234336 B AT234336 B AT 234336B
- Authority
- AT
- Austria
- Prior art keywords
- wood wool
- moldings
- production
- organically bound
- building boards
- Prior art date
Links
- 239000002023 wood Substances 0.000 title claims description 17
- 210000002268 wool Anatomy 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 238000000465 moulding Methods 0.000 title claims description 6
- 239000006260 foam Substances 0.000 claims description 14
- 238000005187 foaming Methods 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
- E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
- E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
- E04C2/386—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a frame of unreconstituted or laminated wood
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
Description
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Verfahren zur Herstellung von Bauplatten oder Formkörpern aus organisch gebundener Holzwolle
Kunststoffschaum in Form von Platten, Formkörpern, Schalen u. dgl. wird für Isolierzwecke immer mehr verwendet. Es ist auch das Kaschieren von mineralisch gebundenen Holzwollplatten mit Hartschaum- stoff bekannt. Derartige Platten befriedigen in bezug auf Luftdurchlässigkeit (sogenanntes Atmen), Isolie- rung und Schalldämmung keineswegs.
Dieser Erfindung liegt die Aufgabe zugrunde, mit Schaumstoff kombinierte Holzwoll-Leichtbauplat- ten weiter zu verbessern. Im Rahmen der Bemühungen diese Aufgabe zu lösen wurde getunden, dass orga- nisch gebundene Holzwollkörper oder-platten so lose und strukturell doch so fest herstellbar sind, dass sie aus einem verhältnismässig lockeren Gefüge ein stabiles Gerüst abgeben. Nach der erfindungsgemässen Lö- sung der gestellten Aufgabe füllen in das Gefüge der Formkörper oder Leichtbauplatten eingebrachte bläh- fähige Schaumstoffsubstanzen, wie z. B. Polystyrol, Harnstoffharze, Gemische auf Basis der Polyurethane aufschäumend bzw. expandierend die Hohlräume des Gefüges ganz oder teilweise aus.
Bei dem in solcher Weise vor sich gehenden Ausfüllen eines solchen Gefüges mit noch ungeschäumten Kunststoffen bleiben auch nach dem Aufschäumen od. dgl. derselben genügend mehr oder weniger feine Poren im Innern des Holzwollgerüstes erhalten, die ein Atmen des jeweiligen Teiles gestatten. Ein besonderer Vorteil wird erfindungsgemäss durch schon bei der eigentlichen Herstellung der Formkörper oder Platten aus Holzwolle zwischen deren Gefüge eingebrachte blähfähige Schaumstoffteilchen erreicht. Ein weiteres Merkmal der Erfindung ist durch geschlossene Poren der Oberflächen der einzelnen Schaumstoffteilchen gegeben. Diese geschlossenen Poren können durch zweckentsprechende Behandlung und Aufschäumen der jeweiligen blähfähigen Substanzen auf deren Oberfläche erzielt werden.
Die blähfähige Schaumstoffsubstanz kann auch bei der eigentlichen Herstellung der Leichtbauplatte dem Holzwolle-Bindemittel-Gemisch oder aber dem Bindemittel selbst beigemischt rep. zugefügt werden und mit diesen zusammen in der gewünschten Weise verformt werden, wobei die Notwendigkeit des Wassers des organischen Bindemittels durch Wärme zu vertreiben dieser Verfahrensart entgegen kommt.
Da durch den geblähtenSchaumstoff innerhalb des Gefüges dieses verstärkt wird, kann durch oben beschriebenes Verfahren ein Teil des organischen Bindemittels erspart werden.
Es ist aber auch möglich, eine starre Leichtbauplatte mit weichem oder weichelastischem Schaumstoff in der oben erwähnten Weise zu durchsetzen. Hiedurch werden besondere schallschluckende Eigenschaften erreicht.
Es ist aber auch möglich, in lose gelegten Leichtbau oder sonstigen Holzwollplatten unterschiedlich harte Schaumstoffschichten einzubringen.
Beispiel l : In einer entsprechend lose gelegten organisch gebundenen Holzwollplatte wird Polystyrol mit eingearbeiteten Blähmitteln in feinster Körnung eingeschüttet. Hienach wird die Platte einer der üblichen Behandlungen zur Aktivierung der Schäumung ausgesetzt.
Beispiel 2 : Auf eine dicht gelegte organisch gebundene Holzwollplatte wird eine4ufspritzungvon mit Blähmitteln versehenen Harnstoffharzen aufgebracht und danach die Schäumung und Härtung veranlasst.
Beispiel 3 : In eine organisch gebundene Holzwollplatte wird eine Schicht aus Schaumstoffmasse auf Basis von Polyurethan eingeblasen, die nach der Schäumung einen weichelastischen Schaum ergibt.
Die erforderlichen Mengen an blähfähiger Schaumstoffsubstanz bzw. deren Mengen- und Volumenverhältnis zur Masse oder zum Volumen der Leichtbauplatten ist unterschiedlich, da deren mehr oder weniger grosse Dichte entscheidend ist.
<Desc/Clms Page number 2>
Es können auch schon vorgeschäumte Kunststoffteilchen in wasserfeuchtem Zustand im Innern des jeweiligen Holzwollkörpers durch den Einfluss von Hochfrequenzstrom verschäumt werden. In jedem Verschäumungsfall, auch zu den gewählten Beispielen, spielt die Form der Holzwollkörper od. dgl. keine Rolle.
PATENTANSPRÜCHE :
1. Verfahren zur Herstellung von Bauplatten oder Formkörpern aus organisch gebundener Holzwolle kombiniert mit Schaumstoffen, dadurch gekennzeichnet, dass innerhalb des Gefüges eines Holzwollgerüstes Schaumstoffe eingebracht werden, die durch Schäumen oder Expandieren die Poren des Holzwollgerüstes ganz oder teilweise schliessen.
<Desc / Clms Page number 1>
Process for the production of building boards or moldings from organically bound wood wool
Plastic foam in the form of plates, moldings, bowls and the like. Like. Is used more and more for insulation purposes. The lamination of mineral-bonded wood wool panels with rigid foam is also known. Such panels are by no means satisfactory in terms of air permeability (so-called breathing), insulation and soundproofing.
This invention is based on the object of further improving wood-wool lightweight panels combined with foam. As part of the efforts to solve this problem, it was found that organically bound wood wool bodies or panels can be produced so loosely and structurally so firmly that they form a stable framework from a relatively loose structure. According to the inventive solution to the problem set, expandable foam substances, such as B. polystyrene, urea resins, mixtures based on the polyurethanes foaming or expanding the cavities of the structure in whole or in part.
When such a structure is filled in with still unfoamed plastics, even after foaming or the like, sufficient more or less fine pores are retained in the interior of the wood wool structure to allow the respective part to breathe. According to the invention, a particular advantage is achieved by expandable foam particles introduced between their structure during the actual production of the molded bodies or panels made of wood wool. Another feature of the invention is given by closed pores on the surfaces of the individual foam particles. These closed pores can be achieved by appropriate treatment and foaming of the respective expandable substances on their surface.
The expandable foam substance can also be mixed with the wood wool-binder mixture or with the binder itself during the actual production of the lightweight building board. are added and are deformed together with these in the desired manner, the need to drive off the water of the organic binder by heat this type of process comes into play.
Since this is reinforced by the expanded foam within the structure, part of the organic binder can be saved by the method described above.
But it is also possible to enforce a rigid lightweight building board with soft or flexible foam in the manner mentioned above. This achieves special sound-absorbing properties.
However, it is also possible to incorporate foam layers of different hardness into loosely laid lightweight construction or other wood wool panels.
Example 1: Polystyrene with incorporated blowing agents in the finest grain size is poured into an appropriately loosely laid organically bound wood wool board. The plate is then subjected to one of the usual treatments for activating the foaming.
Example 2: Urea resins with blowing agents are sprayed onto a tightly laid, organically bound wood wool board, and foaming and hardening are then initiated.
Example 3: A layer of foamed material based on polyurethane is blown into an organically bound wood wool board, which after foaming results in a flexible foam.
The required quantities of expandable foam substance or its quantity and volume ratio to the mass or to the volume of the lightweight panels is different, since their greater or lesser density is decisive.
<Desc / Clms Page number 2>
Pre-expanded plastic particles can also be foamed in the water-moist state inside the respective wood wool body through the influence of high-frequency current. In every case of foaming, including the examples chosen, the shape of the wood wool bodies or the like does not matter.
PATENT CLAIMS:
1. A process for the production of building boards or moldings from organically bound wood wool combined with foams, characterized in that foams are introduced within the structure of a wood wool framework which completely or partially close the pores of the wood wool framework by foaming or expanding.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT337162A AT234336B (en) | 1962-04-25 | 1962-04-25 | Process for the production of building boards or moldings from organically bound wood wool |
| DEC10447U DE1875717U (en) | 1962-04-25 | 1963-04-24 | ORGANICALLY BONDED LIGHTWEIGHT PANEL. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT337162A AT234336B (en) | 1962-04-25 | 1962-04-25 | Process for the production of building boards or moldings from organically bound wood wool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT234336B true AT234336B (en) | 1964-06-25 |
Family
ID=3549494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT337162A AT234336B (en) | 1962-04-25 | 1962-04-25 | Process for the production of building boards or moldings from organically bound wood wool |
Country Status (2)
| Country | Link |
|---|---|
| AT (1) | AT234336B (en) |
| DE (1) | DE1875717U (en) |
-
1962
- 1962-04-25 AT AT337162A patent/AT234336B/en active
-
1963
- 1963-04-24 DE DEC10447U patent/DE1875717U/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1875717U (en) | 1963-07-18 |
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