FR2699855A1 - Composite flexible sheet for dispensing water, absorbing oil or chemical liq. - Google Patents

Composite flexible sheet for dispensing water, absorbing oil or chemical liq. Download PDF

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Publication number
FR2699855A1
FR2699855A1 FR9215988A FR9215988A FR2699855A1 FR 2699855 A1 FR2699855 A1 FR 2699855A1 FR 9215988 A FR9215988 A FR 9215988A FR 9215988 A FR9215988 A FR 9215988A FR 2699855 A1 FR2699855 A1 FR 2699855A1
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FR
France
Prior art keywords
composite material
material according
substance
intermediate layer
layer
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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
Application number
FR9215988A
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French (fr)
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FR2699855B1 (en
Inventor
Guiraud Patrick Charles
Koffler Honorine Od Marguerite
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Individual
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Individual
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Priority to FR9215988A priority Critical patent/FR2699855B1/en
Publication of FR2699855A1 publication Critical patent/FR2699855A1/en
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Publication of FR2699855B1 publication Critical patent/FR2699855B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/06—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 structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/08—Animal fibres, e.g. hair, wool, silk

Abstract

The material is defined by a first layer (10) of a woven or non-woven geotextile material, an intermediate layer (11) of a water-absorbent or retentive material, and a second layer (13) of geotextile material similar to the first. The intermediate layer may include a supporting layer (12) of geotextile material, e.g. polyacrylamide mesh.The intermediate layer may be used to retain a reservoir of water for eventual dispersal via the outer layers to the external environment. Alternatively it may be used to absorb oils or chemical products from the external environment. The layers are secured together to define a flexible, deformable and strong composite sheet.

Description

La présente invention concerne un matériau composite rétenteur de liquide , absorbant d' huiles ou de produits chimiques liquides . Le matériau est constitué d'une couche primaire 10 , d'une couche inter médiaire 11 constituée d'une substance rétentrice ou absorbante de liquide , pouvant éventuellement être associée ou supportée par une couche support 12 , et une couche secondaire 13 , les diverses couches étant assemblées entre elles par aiguilletage , couture ou collage
Les couches 10 , 12 , et 13 pourront être éventuellement des géotextiles nontissés , tissés , ou tricotés ou une combinaison de ces géotextilles, de nature synthétique , végétale , ou animale
Le matériau , présentant de par sa composition et sa constitution une capacité importante et maîtrisée de rétention et de restitution éventuelle de liquide au milieu extérieur ou d'absorption d'huiles ou de produits chimiques liquides , est particulièrement bien approprié pour constituer une réserve d'eau utile en assurant une régulation hydrique d'un substrat ou d'une couverture végétale , pour réguler par rétention puis restitution ultérieure des flux de liquide tels que par exemple des pluies d'orage et contribuer ainsi à la maîtrise des débits des sys tèmes d'assainissement et d'évacuation des eaux , pour absorber des huiles ou des produits chimiques liquides lui permettant d'être utilisé dans - des ouvrages de protection de 1' environnement ou de stockage de produits ou liquides polluants
Les avantages de la présente invention sont essentiellement dûs à l'utilisation pour la couche intermédiaire 11 d'une substance présentant une très haute capacité de rétention de liquide , avec la possibilité de restitution ultérieure de celui-ci , ou d'une substance présentant la capacité d'absorber et de retenir les huiles ou les produits chimi ques liquides
La variation de dosage de la substance composant la couche intermédiaire 11 et le choix de sa nature permet de fabriquer des matériaux présentant des caractéristiques parfaitement maîtrisables et vari ables permettant des applications diverses
Les couches 10 , 12 , et 13 seront par exemple des géotextiles non tissés fabriqués par aiguilletage , par liaisonnement chimique ou par thermosoudage .Elles porront également être des géotextiles tissés ou tri cotés , ou une combinaison de géotextiles nontissés et tissés , nontissés et tricotés , tissés et tricotés ,nontissés tissés et tricotés
Les couches 10 , 12 , et 13 seront de nature synthétique tel que par exemple le polypropylène , le polyester , le polyéthylène , l'acrylique
Elles pourront aussi être de nature végétale tel que par exemple le jute , la coco , ou le coton , ou de nature animale tel que par exemple la laine ou la soie
Selon les performances mécaniques et la durabilité souhaitée du matériau les différentes couches 10 , 12 , et 13 pourront être de nature et de fabrication différente .La couche primaire 10 pourra être par exemple un géotextile nontissé en polypropylène renforcé par un géotextile tissé en polyester , la couche 12 un géotextile nontissé en jute , et la couche secondaire 13 un géotextile tricoté en polyéthylène
La substance composant la couche intermédiaire 11 pourra se présen ter à l'état initial sous forme par exemple de poudre , de graines, de granulés , de grains , ou de granulats . Elle pourra être de nature organique , minérale , ou issue de la chimie de synthèse , ou être une combinaison d' entre elles . Elle pourra être par exemple à base de polyacrylamide réticulé ou d'acide acrylique ou de toute substance présentant une forte capacité de rétention de liquide ou par exemple de silicate de calcium hydraté, ou de toute substance présentant une forte capacité d'absorption d'huiles ou de produits chimiques liquides
Les différentes couches pourront être assemblées entre elles par ai guilletage , par collage , ou par couture
L'assemblage des couches permet d'obtenir un matériau flexible , sou ple et déformable présentant des performances mécaniques, en particu
lier une résistance à la traction et à la déchirure , lui permettant de s'adapter aux sollicitations appliquées tant en phase de mise en oeuvre qu'au cours de son utilisation sur des supports plans ou accidentés et de géométries variables. The present invention relates to a liquid retentive composite material absorbing oils or liquid chemicals. The material consists of a primary layer 10, an intermediate layer 11 consisting of a liquid retentive or absorbent substance, which can optionally be associated or supported by a support layer 12, and a secondary layer 13, the various layers being joined together by needling, sewing or gluing
The layers 10, 12, and 13 could possibly be nonwoven, woven, or knitted geotextiles or a combination of these geotextiles, of synthetic, vegetable or animal nature.
The material, having by its composition and its constitution a large and controlled capacity of retention and possible restitution of liquid to the external environment or absorption of oils or liquid chemicals, is particularly well suited to constitute a reserve of useful water by ensuring the water regulation of a substrate or a plant cover, to regulate by retention then subsequent restitution of the flows of liquid such as for example rainstorms and thus contribute to the control of the flows of the systems sanitation and drainage, to absorb oils or liquid chemicals allowing it to be used in - environmental protection works or storage of polluting products or liquids
The advantages of the present invention are essentially due to the use for the intermediate layer 11 of a substance having a very high liquid retention capacity, with the possibility of subsequent restitution thereof, or of a substance exhibiting the Ability to absorb and retain oils or liquid chemicals
The variation in dosage of the substance making up the intermediate layer 11 and the choice of its nature makes it possible to manufacture materials having perfectly controllable and vari able characteristics allowing various applications
The layers 10, 12, and 13 will be, for example, non-woven geotextiles produced by needling, by chemical bonding or by heat-sealing. They may also be woven or tri-rated geotextiles, or a combination of nonwoven and woven, nonwoven and knitted geotextiles, woven and knitted, woven and knitted nonwovens
Layers 10, 12, and 13 will be synthetic in nature such as, for example, polypropylene, polyester, polyethylene, acrylic
They may also be of a vegetable nature such as for example jute, coconut, or cotton, or of an animal nature such as for example wool or silk
Depending on the mechanical performance and the desired durability of the material, the different layers 10, 12 and 13 may be of different types and manufacturing. The primary layer 10 may for example be a nonwoven polypropylene geotextile reinforced with a woven polyester geotextile, the layer 12 a nonwoven jute geotextile, and secondary layer 13 a knitted polyethylene geotextile
The substance making up the intermediate layer 11 may be present in the initial state in the form, for example, of powder, seeds, granules, grains, or aggregates. It can be organic, mineral, or derived from synthetic chemistry, or be a combination of them. It may for example be based on crosslinked polyacrylamide or acrylic acid or any substance having a strong liquid retention capacity or for example hydrated calcium silicate, or any substance having a strong absorption capacity for oils. or liquid chemicals
The different layers can be assembled together by guillotating, by gluing, or by sewing
The assembly of the layers makes it possible to obtain a flexible, flexible and deformable material having mechanical performance, in particular
to link a resistance to traction and tearing, allowing it to adapt to the stresses applied both in the implementation phase and during its use on flat or uneven supports and of variable geometries.

Claims (9)

REVENDICATIONS 1. Matériau composite retenteur ou absorbant de liquide caractérisé en ce qu'il est constitué d'une couche primaire 10 constituée d'un géotextile nontissé , tissé , ou tricoté , ou d'une combinaison de ceuxci , d'une couche intermédiaire 11 constituée d'une substance réten trice ou absorbante de liquide , pouvant être associée ou supportée par une couche support éventuelle 12 constituée d'un géotextile nontissé , tissé , ou tricoté , ou d'une combinaison de ceux-ci , et d'une couche secondaire 13 constituée d'un géotextile nontissé , tissé , ou tricoté , ou d'une combinaison de ceux-ci1. A liquid retentive or absorbent composite material characterized in that it consists of a primary layer 10 consisting of a nonwoven, woven, or knitted geotextile, or of a combination thereof, of an intermediate layer 11 consisting of a liquid retentive or absorbent substance, which can be combined with or supported by an optional support layer 12 consisting of a nonwoven, woven or knitted geotextile, or a combination thereof, and a secondary layer 13 made of a nonwoven, woven, or knitted geotextile, or a combination thereof 2. Matériau composite selon revendication 1 caractérisé en ce que la couche intermédiaire 11 peut être une substance rétentrice de liquide lui permettant d'être utilisé pour constituer une réserve de liquide pouvant être restitué ultérieurement au milieu extérieur2. Composite material according to claim 1 characterized in that the intermediate layer 11 can be a liquid retentive substance allowing it to be used to constitute a reserve of liquid that can be returned later to the outside environment 3.Matériau composite selon revendication 1 caractérisé en ce que la couche intermédiaire peut être une substance absorbante d ' huiles ou de produits chimiques liquides , lui permettant d'être utilisé dans des ouvrages de protection de l'environnement ou de stockage de produits ou liquides polluants3. composite material according to claim 1 characterized in that the intermediate layer can be an absorbent substance of oils or liquid chemicals, allowing it to be used in environmental protection works or storage of products or liquids pollutants 4. Matériau composite selon revendication 1 , 2 , et 3 caractérisé en ce que les diverses couches peuvent être assemblées par aiguilletage ou par collage ou par couture de manière à constituer un matériau souple , flexible , déformable et résistant4. Composite material according to claim 1, 2, and 3 characterized in that the various layers can be assembled by needling or by gluing or by sewing so as to constitute a flexible, flexible, deformable and resistant material 5. Matériau composite selon revendication 1 et 4 caractérisé en ce que les géotextiles utilisés pour les différentes couches pourront être de nature synthétique , végétale , ou animale5. Composite material according to claim 1 and 4 characterized in that the geotextiles used for the different layers may be of synthetic, vegetable or animal nature 6.Matériau composite selon revendication 1 , 4 ,5 caractérisé en ce que les couches primaires 10 , support 12 , et secondaire 13 peuvent être obtenues par des procédés de fabrication différents tel que l'aiguilletage , le tissage , le thermosoudage , ou le liaisonnement chimique6. Composite material according to claim 1, 4, 5 characterized in that the primary layers 10, support 12, and secondary 13 can be obtained by different manufacturing methods such as needling, weaving, heat sealing, or bonding chemical 7. Matériau composite selon revendication 1 , 2 , et 3 caractérisé en ce que la substance constituant la couche intermédiaire 11 se pré sente à l'état initial sous forme par exemple de poudre , graines granulés , grains , granulats , et qu'elle peut être associée ou sup portée par une couche support éventuelle 127. Composite material according to claim 1, 2, and 3 characterized in that the substance constituting the intermediate layer 11 is present in the initial state in the form for example of powder, granulated seeds, grains, aggregates, and that it can be associated or supported by a possible support layer 12 8. Matériau composite selon revendication 1 , 2 , 3 , et 7 caractérisé en ce que la substance constituant la couche intermédiaire est à base de polyacrylamide réticulé ou d'acide acrylique , ou de toute substance présentant une forte capacité de rétention de liquide.8. Composite material according to claim 1, 2, 3, and 7 characterized in that the substance constituting the intermediate layer is based on crosslinked polyacrylamide or acrylic acid, or any substance having a high liquid retention capacity. 9. Matériau composite selon revendication 1 , 2 , 3 , et 7 caractérisé en ce que la substance constituant la couche intermédiaire est à base de silicate de calcium hydraté ou de toute substance présen tant une forte capacité d'absorption d'huiles ou de produits chimi ques liquides 9. Composite material according to claim 1, 2, 3, and 7 characterized in that the substance constituting the intermediate layer is based on hydrated calcium silicate or any substance having a high absorption capacity for oils or products liquid chemicals
FR9215988A 1992-12-31 1992-12-31 Liquid-retaining composite material, absorbing oils or liquid chemicals. Expired - Fee Related FR2699855B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9215988A FR2699855B1 (en) 1992-12-31 1992-12-31 Liquid-retaining composite material, absorbing oils or liquid chemicals.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9215988A FR2699855B1 (en) 1992-12-31 1992-12-31 Liquid-retaining composite material, absorbing oils or liquid chemicals.

Publications (2)

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FR2699855A1 true FR2699855A1 (en) 1994-07-01
FR2699855B1 FR2699855B1 (en) 1995-02-24

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FR9215988A Expired - Fee Related FR2699855B1 (en) 1992-12-31 1992-12-31 Liquid-retaining composite material, absorbing oils or liquid chemicals.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001037986A1 (en) * 1999-11-24 2001-05-31 Vlcek Petr Organic absorbent geotextile
WO2006021756A1 (en) * 2004-08-21 2006-03-02 Permavoid Limited Product for retention and degradation of pollutant substances
WO2006077421A1 (en) * 2005-01-19 2006-07-27 Coventry University Paving system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250172A (en) * 1979-02-09 1981-02-10 Hausheer Hans P Needled fiber mat containing granular agent
US4715918A (en) * 1985-06-26 1987-12-29 Kimberly-Clark Corporation Method for forming discrete particulate areas in a composite article
EP0278419A2 (en) * 1987-02-13 1988-08-17 NAUE-FASERTECHNIK GMBH & CO. KG Waterproof sealing mat, essentially composed of a supporting layer, and intermediate layer of expandable clay, and a covering layer
EP0425270A2 (en) * 1989-10-25 1991-05-02 Hoechst Celanese Corporation Super absorbent polymer composite structure
EP0490529A1 (en) * 1990-12-11 1992-06-17 James Clem Corporation Clay liner for steep slopes
EP0491453A1 (en) * 1990-12-17 1992-06-24 Amcol International Corporation Waterproofing material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250172A (en) * 1979-02-09 1981-02-10 Hausheer Hans P Needled fiber mat containing granular agent
US4715918A (en) * 1985-06-26 1987-12-29 Kimberly-Clark Corporation Method for forming discrete particulate areas in a composite article
EP0278419A2 (en) * 1987-02-13 1988-08-17 NAUE-FASERTECHNIK GMBH & CO. KG Waterproof sealing mat, essentially composed of a supporting layer, and intermediate layer of expandable clay, and a covering layer
EP0425270A2 (en) * 1989-10-25 1991-05-02 Hoechst Celanese Corporation Super absorbent polymer composite structure
EP0490529A1 (en) * 1990-12-11 1992-06-17 James Clem Corporation Clay liner for steep slopes
EP0491453A1 (en) * 1990-12-17 1992-06-24 Amcol International Corporation Waterproofing material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001037986A1 (en) * 1999-11-24 2001-05-31 Vlcek Petr Organic absorbent geotextile
WO2006021756A1 (en) * 2004-08-21 2006-03-02 Permavoid Limited Product for retention and degradation of pollutant substances
WO2006077421A1 (en) * 2005-01-19 2006-07-27 Coventry University Paving system
US8104990B2 (en) * 2005-01-19 2012-01-31 Timothy Robert Lowe Paving system

Also Published As

Publication number Publication date
FR2699855B1 (en) 1995-02-24

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