EP0404679A1 - Building material made from residual plants and method for its production - Google Patents

Building material made from residual plants and method for its production Download PDF

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Publication number
EP0404679A1
EP0404679A1 EP90401753A EP90401753A EP0404679A1 EP 0404679 A1 EP0404679 A1 EP 0404679A1 EP 90401753 A EP90401753 A EP 90401753A EP 90401753 A EP90401753 A EP 90401753A EP 0404679 A1 EP0404679 A1 EP 0404679A1
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EP
European Patent Office
Prior art keywords
fibers
binder
mold
packages
grouped
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EP90401753A
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German (de)
French (fr)
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EP0404679B1 (en
Inventor
Ayikoué Assiagnon Atayi
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    • 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
    • E04C2/16—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 of fibres, chips, vegetable stems, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
    • B27J1/00—Mechanical working of cane or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres
    • B27N3/143—Orienting the particles or fibres

Definitions

  • the present invention relates to a building material obtained from plant residues, and having uses similar to those of wood, and to the process for obtaining it.
  • the present invention aims to provide a product which is compact and vacuum-free, and obtained by a simple process, from inexpensive raw materials.
  • the object of the invention is to provide a less expensive and more available material than solid wood, and yet capable of replacing it in all its uses, and even to be used in structures where the importance of the efforts does not allow the use of even the hardest woods.
  • the invention provides a building material obtained from plant residues, characterized in that it is formed from plant fibers impregnated with a binder and grouped in bundles, of parallel fibers, each bundle having the shape of an oblique parallelepiped, having four faces parallel to each other two by two and parallel to the fibers, and two end faces parallel to each other and making an angle of 30 to 60 ° approximately with the fibers, the packages being arranged in superposed layers , each layer comprising several packages of substantially the same dimensions and in contact with their end faces, the end faces of the packages of a layer being offset with respect to the end faces of the packages of an adjacent layer, and the packages being linked to each other using the binder that permeates the fibers, to form a block.
  • the vegetable fibers can be sugarcane, jute, hemp, flax, cotton or kapok fibers. Preferably, however, these are coconut fibers.
  • the binder is a polyurethane adhesive.
  • the invention also provides a process for obtaining a product as described above, and which comprises the following steps: - dip the fibers in the binder, - arrange in a mold the fibers impregnated with binder and grouped in bundles and layers, - press the fibers inside the mold, until at least partial polymerization of the binder, - if necessary, finish the polymerization and proceed with drying out of the mold.
  • the binder with which the fibers are impregnated is a one-component polyurethane adhesive.
  • the fibers are practically independent of each other in the mass of non-polymerized binder, they can bend and move relative to each other, in particular at the limits of the adjacent bundles, which has the effect of filling the voids between bundles, and to overlap adjacent bundle fibers.
  • coconut fibers which are very small in diameter: 0.10 to 0.40 mm.
  • Another advantage of these fibers is their resistance insects and other pests that attack wood or bamboo.
  • the block 1 is formed of a number of layers 2 each consisting of a series of packages 3 formed of parallel fibers.
  • Each package has the shape of a geometric volume limited by an upper face 4 and a parallel lower face, not visible, which extend from one side to the other of the block, two lateral faces of which only one 5 is visible and which coincide with the sides of the block, and end faces 6 which are, in the example chosen, inclined at approximately 45 ° on the plane of the upper and lower faces, this angle could vary, in practice, between 30 and 60 ° about.
  • packages 3 are prepared using fibers dipped in unpolymerized or incompletely polymerized binder.
  • the packages are placed in a mold, which, in the example chosen, has rectangular faces, the packages being arranged in successive layers, taking care to offset the end faces 6 from one layer to the other, to prevent formation lines of weakness, then a pressure is exerted on the mold so as to obtain a homogeneous block, and the assembly is left in the mold until sufficient hardening so that the polymerization can be completed outside the mold.
  • the material obtained is suitable for replacing wood, especially when it is intended to withstand great efforts. It is rot-proof, waterproof, resistant to bad weather, not reacting to large changes in temperature, unassailable by insects. It offers the advantage of being able to be worked like wood (sawing, sanding, varnishing, etc.). Its flexural strength exceeds that of reinforced concrete, its density is lower than that of water, its thermal resistance ranges from -20 ° C to 120 ° C. Its rot-proof and waterproof character and its variable forms depending on the molds used make it possible to advise it in the nautical and aeronautical fields.
  • Two workers can mold an average of 5 m3 per day, depending on the organization of the work, and even much more.
  • the figure shows a block 1 roughly in the shape of a parallelepiped. It should however be observed that the process makes it possible to obtain blocks of various shapes, and even of very complex shapes. It is enough to provide the mold accordingly.
  • the packages located far from the walls of the mold have roughly the shape of a parallelepiped, while the packages intended to be placed near the walls may have a different shape .
  • the packages are arranged so that the fibers bypass the cores provided for this purpose in the mold, or even wrap around them. It is obviously the same if the block must include inserts, for example metallic. The flexibility of the fibers allows, therefore, a wide variety of manufacturing.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Building material made from vegetable residues in a resin matrix and capable of replacing solid wood. This material is formed from vegetable fibres, for example of sugar cane, jute hemp, flax, cotton, kapok, preferably of coconut fibres. The fibres, preferably previously soaked in the resin are grouped in packets (3) with oblique end surfaces (6). The packets are grouped in successive layers (2), the joints between packets being offset from one layer to the next. The assembly is placed in a mould and the resin is possibly added to it, it is pressed and then the resin is hardened until the desired shape is obtained. <IMAGE>

Description

La présente invention est relative à un matériau de construction obtenu à partir de résidus végétaux, et ayant des usages analogues à ceux du bois, et à son procédé d'obtention.The present invention relates to a building material obtained from plant residues, and having uses similar to those of wood, and to the process for obtaining it.

La technique utilisée jusqu'à présent pour obtenir des matériaux de ce genre se limite aux agglomérés de fibres de bois ou sciures de bois, assemblés entre eux par un liant. Cette méthode opératoire donne un produit fini dont le domaine d'utilisation est très restreint. L'apparition de nouveaux liants très performants n'a réussi qu'à améliorer sa résistance aux intempéries et à l'usure, mais la résistance mécanique aux efforts importants auxquels le bois est généralement soumis demeure insuffisante.The technique used until now to obtain materials of this kind is limited to agglomerates of wood fibers or sawdust, joined together by a binder. This operating method gives a finished product whose field of use is very limited. The appearance of new high-performance binders has only succeeded in improving its resistance to weathering and wear, but the mechanical resistance to the significant forces to which the wood is generally subjected remains insufficient.

Le bois dur devenant de plus en plus rare et cher, son abattage massif mettant en péril l'équilibre écologique de la terre, il est nécessaire de le remplacer.Hardwood is becoming increasingly rare and expensive, its massive felling endangering the ecological balance of the earth, it is necessary to replace it.

On a proposé, voir US-A-4.608.106, de constituer des poutres en collant entre elles des planches dont la surface d'extrémité est coupée obliquement par rapport à la surface principale. Cette technique est coûteuse, d'autant plus qu'il faut une exécution soignée pour éviter la formation de vides aux jonctions entre planches.It has been proposed, see US-A-4,608,106, to form beams by gluing boards between them, the end surface of which is cut obliquely to the main surface. This technique is expensive, especially since it requires careful execution to avoid the formation of voids at the junctions between boards.

On a aussi proposé, dans FR-A-2.024.078, un produit formé à partir de bandes plates extraites de tiges de bambou, et tressées, les tresses étant ensuite réunies par pressage et collage pour former des panneaux. Cette technique ne permet pas d'éviter la formation de vides entre tresses adjacentes, en plus elle exige une opération de découpage pour obtenir les bandes plates à partir des tiges du bambou.We have also proposed, in FR-A-2,024,078, a product formed from flat strips extracted from bamboo rods, and braided, the braids then being joined by pressing and gluing to form panels. This technique does not prevent the formation of voids between adjacent braids, in addition it requires a cutting operation to obtain the flat strips from the bamboo stems.

La présente invention a pour but de fournir un produit qui soit compact et sans vide, et obtenu par un procédé simple, à partir de matières premières peu coûteuses.The present invention aims to provide a product which is compact and vacuum-free, and obtained by a simple process, from inexpensive raw materials.

Le but de l'invention est de fournir un matériau moins coûteux et plus disponible que le bois massif, et cependant apte à le remplacer dans tous ses usages, et même à être utilisé dans des structures où l'importance des efforts ne permet pas l'usage des bois même les plus durs.The object of the invention is to provide a less expensive and more available material than solid wood, and yet capable of replacing it in all its uses, and even to be used in structures where the importance of the efforts does not allow the use of even the hardest woods.

Pour obtenir ce résultat, l'invention fournit un matériau de construction obtenu à partir de résidus végétaux, caractérisé en ce qu'il est formé à partir de fibres végétales imprégnées d'un liant et groupées par paquets, de fibres parallèles, chaque paquet ayant la forme d'un parallélépipède oblique, ayant quatre faces parallèles entre elles deux à deux et parallèles aux fibres, et deux faces terminales parallèles entre elles et faisant un angle de 30 à 60° environ avec les fibres, les paquets étant disposés en couches superposées, chaque couche comprenant plusieurs paquets sensiblement de mêmes dimensions et en contact avec leurs faces terminales, les faces terminales des paquets d'une couche étant décalées par rapport aux faces terminales des paquets d'une couche adjacente, et les paquets étant liés entre eux à l'aide du liant qui imprègne les fibres, pour former un bloc.To obtain this result, the invention provides a building material obtained from plant residues, characterized in that it is formed from plant fibers impregnated with a binder and grouped in bundles, of parallel fibers, each bundle having the shape of an oblique parallelepiped, having four faces parallel to each other two by two and parallel to the fibers, and two end faces parallel to each other and making an angle of 30 to 60 ° approximately with the fibers, the packages being arranged in superposed layers , each layer comprising several packages of substantially the same dimensions and in contact with their end faces, the end faces of the packages of a layer being offset with respect to the end faces of the packages of an adjacent layer, and the packages being linked to each other using the binder that permeates the fibers, to form a block.

Les fibres végétales peuvent être des fibres de canne à sucre, de jute, de chanvre, de lin, de coton ou de kapok. De préférence, cependant, ce sont des fibres de noix de coco.The vegetable fibers can be sugarcane, jute, hemp, flax, cotton or kapok fibers. Preferably, however, these are coconut fibers.

Avantageusement, le liant est une colle polyuréthane.Advantageously, the binder is a polyurethane adhesive.

L'invention fournit encore un procédé d'obtention d'un produit tel que décrit ci-dessus, et qui comprend les étapes suivantes :
- tremper les fibres dans le liant,
- disposer dans un moule les fibres imprégnées de liant et groupées en paquets et en couches,
- presser les fibres à l'intérieur du moule, jusqu'à polymérisation au moins partielle du liant,
- éventuellement, terminer la polymérisation et procéder à un séchage hors du moule.The invention also provides a process for obtaining a product as described above, and which comprises the following steps:
- dip the fibers in the binder,
- arrange in a mold the fibers impregnated with binder and grouped in bundles and layers,
- press the fibers inside the mold, until at least partial polymerization of the binder,
- if necessary, finish the polymerization and proceed with drying out of the mold.

En variante, on peut opérer de la façon suivante :
- disposer dans un moule les fibres non imprégnées de liant groupées en paquets et en couches,
- fermer le moule et y introduire le liant pour imprégner les fibres,
- presser les fibres à l'intérieur du moule jusqu'à polymérisation au moins partielle du liant,
- éventuellement, terminer la polymérisation et procéder à un séchage hors du moule.Alternatively, one can operate as follows:
- arrange in a mold the fibers not impregnated with binder grouped in packages and in layers,
- close the mold and introduce the binder to impregnate the fibers,
- press the fibers inside the mold until at least partial polymerization of the binder,
- if necessary, finish the polymerization and proceed with drying out of the mold.

Ceci exige un liant ayant initialement une bonne fluidité, et un moule conçu pour évacuer l'air.This requires a binder having initially good fluidity, and a mold designed to evacuate the air.

De préférence, le liant avec lequel on imprègne les fibres est une colle de polyuréthane mono-composant.Preferably, the binder with which the fibers are impregnated is a one-component polyurethane adhesive.

Suivant une modalité intéressante surtout pour des formes complexes et pour faciliter la mise en place des fibres dans le moule, on lie ensemble des paquets successifs à l'aide de fibres placées autour de leur jonction ou avec un liant. On forme ainsi des sortes de cordes plus faciles à mettre en place.According to an interesting modality especially for complex shapes and to facilitate the placement of the fibers in the mold, successive bundles are linked together using fibers placed around their junction or with a binder. We thus form kinds of ropes that are easier to set up.

Comme les fibres sont pratiquement indépendantes les unes des autres dans la masse de liant non polymérisé, elles peuvent fléchir et se déplacer les unes par rapport aux autres, notamment aux limites des paquets adjacents, ce qui a pour effet de combler les vides entre paquets, et d'assurer un chevauchement contre fibres de paquets adjacents.As the fibers are practically independent of each other in the mass of non-polymerized binder, they can bend and move relative to each other, in particular at the limits of the adjacent bundles, which has the effect of filling the voids between bundles, and to overlap adjacent bundle fibers.

Cela est particulièrement vrai avec des fibres de noix de coco, qui sont de très petit diamètre : 0,10 à 0,40 mm.This is particularly true with coconut fibers, which are very small in diameter: 0.10 to 0.40 mm.

Un autre avantage de ces fibres est leur résistance aux insectes et autres parasites qui s'attaquent au bois ou au bambou.Another advantage of these fibers is their resistance insects and other pests that attack wood or bamboo.

L'invention va être exposée de façon plus précise à l'aide d'un exemple pratique illustré à l'aide de la figure unique, qui est une vue en perspective d'un bloc de matériau conforme à l'invention.The invention will be explained more precisely with the aid of a practical example illustrated with the aid of the single figure, which is a perspective view of a block of material according to the invention.

Comme le montre la figure, le bloc 1 est formé d'un certain nombre de couches 2 constituées chacune d'une série de paquets 3 formés de fibres parallèles. Chaque paquet a la forme d'un volume géométrique limité par une face supérieure 4 et une face inférieure parallèle, non visible, qui s'étendent d'un côté à l'autre du bloc, deux faces latérales dont une seule 5 est visible et qui coïncident avec les côtés du bloc, et des faces terminales 6 qui sont, dans l'exemple choisi, inclinées à 45° environ sur le plan des faces supérieure et inférieure, cet angle pourrait varier, dans la pratique, entre 30 et 60° environ. Pour obtenir un tel bloc, on prépare des paquets 3 à l'aide de fibres trempées dans du liant non polymérisé ou incomplètement polymérisé. On place les paquets dans un moule, qui, dans l'exemple choisi, est à faces rectangulaires, les paquets étant disposés par couches successives en prenant soin de décaler les faces terminales 6 d'une couche à l'autre, pour empêcher la formation de lignes de faiblesse, puis on exerce une pression sur le moule de façon à obtenir un bloc homogène, et on laisse l'ensemble dans le moule jusqu'à un durcissement suffisant pour que la polymérisation puisse s'achever hors du moule.As shown in the figure, the block 1 is formed of a number of layers 2 each consisting of a series of packages 3 formed of parallel fibers. Each package has the shape of a geometric volume limited by an upper face 4 and a parallel lower face, not visible, which extend from one side to the other of the block, two lateral faces of which only one 5 is visible and which coincide with the sides of the block, and end faces 6 which are, in the example chosen, inclined at approximately 45 ° on the plane of the upper and lower faces, this angle could vary, in practice, between 30 and 60 ° about. To obtain such a block, packages 3 are prepared using fibers dipped in unpolymerized or incompletely polymerized binder. The packages are placed in a mold, which, in the example chosen, has rectangular faces, the packages being arranged in successive layers, taking care to offset the end faces 6 from one layer to the other, to prevent formation lines of weakness, then a pressure is exerted on the mold so as to obtain a homogeneous block, and the assembly is left in the mold until sufficient hardening so that the polymerization can be completed outside the mold.

Le matériau obtenu est apte à remplacer le bois, notamment lorsqu'il est destiné à supporter de grands efforts. Il est imputrescible, imperméable, réfractaire aux intempéries, ne réagissant pas aux grands changements de température, inattaquable par les insectes. Il offre l'avantage de pouvoir être travaillé comme le bois (sciage, ponçage, vernissage, ..). Sa résistance en flexion dépasse celle du béton armé, sa densité est inférieure à celle de l'eau, sa résistance thermique va de -20°C à 120°C. Son caractère imputrescible et imperméable et ses formes variables suivant les moules utilisés permettent de le conseiller dans le domaine nautique et aéronautique.The material obtained is suitable for replacing wood, especially when it is intended to withstand great efforts. It is rot-proof, waterproof, resistant to bad weather, not reacting to large changes in temperature, unassailable by insects. It offers the advantage of being able to be worked like wood (sawing, sanding, varnishing, etc.). Its flexural strength exceeds that of reinforced concrete, its density is lower than that of water, its thermal resistance ranges from -20 ° C to 120 ° C. Its rot-proof and waterproof character and its variable forms depending on the molds used make it possible to advise it in the nautical and aeronautical fields.

D'autre part, sa production ne dégage ni fumée, ni vapeur toxique.On the other hand, its production gives off neither smoke nor toxic vapor.

Lorsque le matériau est réalisé avec de la colle polyuréthane mono-composant, il est inattaqué par les bases, les sels, les huiles, les essences et la plupart des acides. De plus, cette colle a une prise très lente, ce qui permet de mieux fignoler le travail, surtout la disposition des fibres.When the material is made with mono-component polyurethane glue, it is attacked by bases, salts, oils, essences and most acids. In addition, this adhesive has a very slow setting, which makes it possible to improve the work, especially the arrangement of the fibers.

Deux ouvriers peuvent mouler en moyenne 5 m³ par jour, suivant l'organisation du travail, et même beaucoup plus.Two workers can mold an average of 5 m³ per day, depending on the organization of the work, and even much more.

La figure montre un bloc 1 à peu près en forme de parallélépipède. On doit cependant observer que le procédé permet d'obtenir des blocs de formes variées, et même de formes très complexes. Il suffit de prévoir le moule en conséquence. Dans le cas de l'élaboration d'un bloc de forme complexe, les paquets situés loin des parois du moule ont à peu près la forme d'un parallélépipède, alors que les paquets destinés à être posés près des parois pourront avoir une forme différente. En particulier, si on désire obtenir un bloc comportant des cavités ou des trous de passage, par exemple pour des moyens de fixation, on dispose les paquets de façon que les fibres contournent les noyaux prévus à cet effet dans le moule, ou même s'enroulent autour d'elles. Il en est évidemment de même si le bloc doit comporter des inserts, par exemple métalliques. La souplesse des fibres permet, par conséquent, une grande variété de fabrications.The figure shows a block 1 roughly in the shape of a parallelepiped. It should however be observed that the process makes it possible to obtain blocks of various shapes, and even of very complex shapes. It is enough to provide the mold accordingly. In the case of the development of a block of complex shape, the packages located far from the walls of the mold have roughly the shape of a parallelepiped, while the packages intended to be placed near the walls may have a different shape . In particular, if it is desired to obtain a block comprising cavities or through holes, for example for fixing means, the packages are arranged so that the fibers bypass the cores provided for this purpose in the mold, or even wrap around them. It is obviously the same if the block must include inserts, for example metallic. The flexibility of the fibers allows, therefore, a wide variety of manufacturing.

Claims (8)

1. Matériau de construction obtenu à partir de résidus végétaux, caractérisé en ce qu'il est formé à partir de fibres végétales imprégnées d'un liant et groupées par paquets (3), de fibres parallèles, chaque paquet ayant la forme d'un parallélépipède oblique, ayant quatre faces (4, 5) parallèles entre elles deux à deux et parallèles aux fibres, et deux faces terminales (6) parallèles entre elles et faisant un angle de 30 à 60° environ avec les fibres, les paquets étant disposés en couches superposées (2), chaque couche comprenant plusieurs paquets sensiblement de même dimension et en contact par leurs faces terminales, les faces terminales des paquets d'une couche étant décalées par rapport aux faces terminales des paquets d'une couche adjacente, et les paquets étant liés entre eux à l'aide de liant qui imprègne les fibres, pour former un bloc.1. Construction material obtained from plant residues, characterized in that it is formed from plant fibers impregnated with a binder and grouped in bundles (3), of parallel fibers, each bundle having the shape of a oblique parallelepiped, having four faces (4, 5) parallel to each other two by two and parallel to the fibers, and two end faces (6) parallel to each other and at an angle of 30 to 60 ° approximately with the fibers, the packages being arranged in superimposed layers (2), each layer comprising several packages of substantially the same size and in contact by their end faces, the end faces of the packages of a layer being offset with respect to the end faces of the packages of an adjacent layer, and the packages being bonded together using a binder that permeates the fibers, to form a block. 2. Matériau selon la revendication 1, caractérisé en ce que les fibres sont des fibres de canne à sucre , de jute, de chanvre, de lin, de coton ou de kapok.2. Material according to claim 1, characterized in that the fibers are sugarcane, jute, hemp, flax, cotton or kapok fibers. 3. Matériau selon la revendication 1, caractérisé en ce que les fibres sont des fibres de noix de coco.3. Material according to claim 1, characterized in that the fibers are coconut fibers. 4. Matériau selon l'une des revendications 1 à 3, caractérisé en ce que le liant est une colle polyuréthane.4. Material according to one of claims 1 to 3, characterized in that the binder is a polyurethane adhesive. 5. Procédé d'obtention d'un matériau selon l'une des revendications 1 à 4, caractérisé en ce qu'il comprend les étapes suivantes :
- tremper les fibres dans le liant,
- disposer les fibres imprégnées de liant dans un moule et groupées en paquets (3) et en couches (2),
- presser les fibres à l'intérieur du moule, jusqu'à polymérisation au moins partielle du liant,
- éventuellement, terminer la polymérisation et procéder à un séchage hors du moule.5. Method for obtaining a material according to one of claims 1 to 4, characterized in that it comprises the following steps:
- dip the fibers in the binder,
- arrange the fibers impregnated with binder in a mold and grouped in packages (3) and in layers (2),
- press the fibers inside the mold, until at least partial polymerization of the binder,
- if necessary, finish the polymerization and proceed with drying out of the mold. 6. Procédé d'obtention d'un matériau selon l'une des revendications 1 à 4, caractérisé en ce qu'il comprend les étapes suivantes :
- disposer dans un moule les fibres non imprégnées de liant groupées en paquets et en couches,
- fermer le moule et y introduire le liant pour imprégner les fibres,
- presser les fibres à l'intérieur du moule jusqu'à polymérisation au moins partielle du liant,
- éventuellement, terminer la polymérisation et procéder à un séchage hors du moule.6. Method for obtaining a material according to one of claims 1 to 4, characterized in that it comprises the following steps:
- arrange in a mold the fibers not impregnated with binder grouped in packages and in layers,
- close the mold and introduce the binder to impregnate the fibers,
- press the fibers inside the mold until at least partial polymerization of the binder,
- if necessary, finish the polymerization and proceed with drying out of the mold. 7. Procédé selon la revendication 5 ou 6, caractérisé en ce que pour faciliter la mise en place des fibres dans le moule, on lie ensemble des paquets successifs à l'aide de fibres placées autour de leur jonction ou avec un liant.7. Method according to claim 5 or 6, characterized in that to facilitate the placement of the fibers in the mold, successive bundles are bonded together using fibers placed around their junction or with a binder. 8. Procédé selon l'une des revendications 5 à 7, caractérisé en ce que le liant dans lequel on imprègne les fibres est une colle de polyuréthane mono-composant.8. Method according to one of claims 5 to 7, characterized in that the binder in which the fibers are impregnated is a one-component polyurethane adhesive.
EP19900401753 1989-06-22 1990-06-21 Building material made from residual plants and method for its production Expired - Lifetime EP0404679B1 (en)

Applications Claiming Priority (2)

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FR8908337 1989-06-22
FR8908337A FR2648743B1 (en) 1989-06-22 1989-06-22 CONSTRUCTION MATERIAL OBTAINED FROM PLANT RESIDUES AND PROCESS FOR OBTAINING SAME

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EP0404679B1 EP0404679B1 (en) 1994-02-09

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DE (1) DE69006550T2 (en)
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WO (1) WO1992010344A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
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EP0396306A2 (en) * 1989-05-04 1990-11-07 Hunter Douglas Industries B.V. Sandwich panel core structure
WO1992010344A1 (en) * 1989-06-22 1992-06-25 Atayi Ayikoue Assiagnon Construction material obtained from plant residues and production method
US5262217A (en) * 1989-05-04 1993-11-16 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
FR2704175A1 (en) * 1993-04-21 1994-10-28 Atayi Ayikoue Assiagnon Material obtained from coconut residues
WO1996013365A1 (en) * 1993-04-21 1996-05-09 Atayi Ayikoue Assiagnon Material made from coconut waste
WO2000058061A1 (en) * 1999-03-31 2000-10-05 Handay Sendayung A method for producing sheet or board of coconut fibres
EP1060852A1 (en) * 1999-06-14 2000-12-20 SHINSEIKAN Co., Ltd. Method for laminating woody fiberboard
EP1932643A3 (en) * 2006-12-11 2009-01-21 Hock-Heyl Carmen Method for manufacturing a glueable substance from fibrous plants and substance plates made thereof
CN104308945A (en) * 2014-10-20 2015-01-28 贵州恒力源林业科技有限公司 Method for manufacturing composite artificial fiberboard
CN108214756A (en) * 2018-01-11 2018-06-29 海宁市豪派新材料科技有限公司 A kind of bamboo fibre plate working machine
CN112192691A (en) * 2020-09-29 2021-01-08 山东俏家装饰新材料有限公司 LSB plate production process
CN113305971A (en) * 2021-06-24 2021-08-27 中福海峡(平潭)发展股份有限公司 Straw fiberboard and preparation method thereof

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US5248541A (en) * 1992-03-06 1993-09-28 Tilby Sydney E Board of non-timber hardwood-replacement lumber
FR2723328B1 (en) * 1994-08-03 1996-10-31 Lacroix Soc E COMPOSITION FOR AGGLOMERATED PRODUCT COMPRISING A VEGETABLE FILLER AND SUGAR, AGGLOMERATED PRODUCT AND ITS PREPARATION METHOD
DE102007019849B3 (en) 2007-04-25 2008-09-04 Carmen Hock-Heyl Manufacturing material that can be glued from fibrous plants and derived board involves cutting, separating and drying especially hemp or flax or a mixture thereof

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FR2024079A5 (en) * 1969-09-23 1970-08-21 Poulain Andre
FR2216102A1 (en) * 1973-01-31 1974-08-30 Lemoine Roger Resin impregnated bamboo latice panels - with stiffness and moisture resistance enhanced by melamine resins
US4608106A (en) * 1985-03-25 1986-08-26 Lahtinen Pentti K Procedure for manufacturing elongated glued beams

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US4608106A (en) * 1985-03-25 1986-08-26 Lahtinen Pentti K Procedure for manufacturing elongated glued beams

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396306A2 (en) * 1989-05-04 1990-11-07 Hunter Douglas Industries B.V. Sandwich panel core structure
EP0396306A3 (en) * 1989-05-04 1991-07-17 Hunter Douglas Industries B.V. Sandwich panel core structure
AU623252B2 (en) * 1989-05-04 1992-05-07 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
US5262217A (en) * 1989-05-04 1993-11-16 Hunter Douglas International N.V. Core arrangement in mineral wool sandwich panel
WO1992010344A1 (en) * 1989-06-22 1992-06-25 Atayi Ayikoue Assiagnon Construction material obtained from plant residues and production method
WO1996013365A1 (en) * 1993-04-21 1996-05-09 Atayi Ayikoue Assiagnon Material made from coconut waste
FR2704175A1 (en) * 1993-04-21 1994-10-28 Atayi Ayikoue Assiagnon Material obtained from coconut residues
WO2000058061A1 (en) * 1999-03-31 2000-10-05 Handay Sendayung A method for producing sheet or board of coconut fibres
EP1060852A1 (en) * 1999-06-14 2000-12-20 SHINSEIKAN Co., Ltd. Method for laminating woody fiberboard
EP1932643A3 (en) * 2006-12-11 2009-01-21 Hock-Heyl Carmen Method for manufacturing a glueable substance from fibrous plants and substance plates made thereof
CN104308945A (en) * 2014-10-20 2015-01-28 贵州恒力源林业科技有限公司 Method for manufacturing composite artificial fiberboard
CN108214756A (en) * 2018-01-11 2018-06-29 海宁市豪派新材料科技有限公司 A kind of bamboo fibre plate working machine
CN112192691A (en) * 2020-09-29 2021-01-08 山东俏家装饰新材料有限公司 LSB plate production process
CN113305971A (en) * 2021-06-24 2021-08-27 中福海峡(平潭)发展股份有限公司 Straw fiberboard and preparation method thereof

Also Published As

Publication number Publication date
FR2648743B1 (en) 1993-05-07
FR2648743A1 (en) 1990-12-28
WO1992010344A1 (en) 1992-06-25
EP0404679B1 (en) 1994-02-09
DE69006550D1 (en) 1994-03-24
DE69006550T2 (en) 1994-09-01

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