FR2665203A1 - Method for treating an article made from non-metallic porous material in order to prevent its becoming green, and article thus treated - Google Patents
Method for treating an article made from non-metallic porous material in order to prevent its becoming green, and article thus treated Download PDFInfo
- Publication number
- FR2665203A1 FR2665203A1 FR9009623A FR9009623A FR2665203A1 FR 2665203 A1 FR2665203 A1 FR 2665203A1 FR 9009623 A FR9009623 A FR 9009623A FR 9009623 A FR9009623 A FR 9009623A FR 2665203 A1 FR2665203 A1 FR 2665203A1
- Authority
- FR
- France
- Prior art keywords
- article
- porous material
- metallic porous
- treated
- treating
- 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
- 239000011148 porous material Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims description 16
- 238000011282 treatment Methods 0.000 claims abstract description 11
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000005750 Copper hydroxide Substances 0.000 claims abstract description 4
- 229910001956 copper hydroxide Inorganic materials 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 15
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 9
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 229910000365 copper sulfate Inorganic materials 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 238000010348 incorporation Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000005749 Copper compound Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 150000001880 copper compounds Chemical class 0.000 description 2
- 230000000855 fungicidal effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 241000195940 Bryophyta Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/002—Provisions for preventing vegetational growth, e.g. fungi, algae or moss
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
- A01N59/20—Copper
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
L'invention concerne un procédé de traitement d'un article en matériau poreux non métallique afin de prévenir son verdissement lorsqu'il est exposé à l'extérieur et elle s'applique notamment à un élément de couverture de bâtiment, en particulier une tuile de terre cuite. The invention relates to a method for treating an article made of non-metallic porous material in order to prevent it from greening when exposed to the outside and it applies in particular to a building covering element, in particular a roof tile. terracotta.
Depuis quelques années, on constate que le verdissement provoqué par la fixation de végétaux tels qu'algues, mousses, lichens, sur tous les matériaux à ltexception des métaux, s'accroît puisqu'il intéresse même quelquefois des toitures déjà anciennes qui n'ont jamais verdi. In recent years, we have noticed that the greening caused by the fixation of plants such as algae, mosses, lichens, on all materials except metals, has been increasing since it even sometimes involves already old roofs which have no never greened.
On sait que l'incorporation de composés de cuivre dans un matériau de construction poreux non métallique peut avoir une action préventive contre la croissance des végétaux. It is known that the incorporation of copper compounds in a porous non-metallic building material can have a preventive action against the growth of plants.
L'incorporation d'un composé de cuivre pose dans la pratique un triple problème puisqu'il faut que la technique d'incorporation soit aussi peu coûteuse que possible du fait qu'elle s'applique à des produits eux-mêmes peu coûteux, notamment lorsqu'il s'agit de tuiles, que la technique permette d'introduire une quantité suffisante d'agent actif dans l'article et que cet agent soit emprisonné d'une manière telle que sa libération soit suffisante pour être efficace et non excessive pour que l'efficacité se maintienne suffisamment longtemps pendant la durée de service de l'article. The incorporation of a copper compound poses in practice a triple problem since the incorporation technique must be as inexpensive as possible because it applies to products themselves inexpensive, in particular in the case of tiles, that the technique allows a sufficient amount of active agent to be introduced into the article and that this agent is trapped in such a way that its release is sufficient to be effective and not excessive for that the efficiency is maintained long enough during the service life of the article.
On a déjà proposé différents procédés de traitement mais aucun d'entre eux n'apporte une solution jugée véritablement satisfaisante au problème posé. Various treatment methods have already been proposed, but none of them provides a solution deemed to be truly satisfactory to the problem posed.
Ainsi, le procédé préconisé dans la publication de demande de brevet internationale WO-81/03142 serait, à priori, trop coûteux pour être appliqué à des tuiles de couverture car il nécessite deux traitements successifs. Thus, the method recommended in the publication of international patent application WO-81/03142 would, a priori, be too expensive to be applied to roofing tiles because it requires two successive treatments.
Le procédé décrit dans la publication de demande de brevet français
FR-A 2 601 684 est un procédé en une seule étape qui évite, de ce point de vue, l'inconvénient du procédé décrit dans la publication WO-81/03142. The process described in the publication of the French patent application
FR-A 2 601 684 is a one-step process which avoids, from this point of view, the drawback of the process described in publication WO-81/03142.
Pour éviter que le sel fongicide qui se trouve présent à l'état soluble dans les pores de l'article soit libéré trop rapidement, le procédé implique l'hydrofugation de l'article au moyen d'une solution de silicone, ce qui contribue à élever notablement le coût du procédé. To prevent the fungicidal salt which is present in the soluble state in the pores of the article from being released too quickly, the process involves waterproofing the article by means of a silicone solution, which contributes to significantly increase the cost of the process.
La présente invention vise à éviter ces inconvénients tout en conservant l'avantage d'un traitement en une seule étape. The present invention aims to avoid these drawbacks while retaining the advantage of treatment in a single step.
On y parvient, selon l'invention, en traitant l'article en matériau poreux non métallique au moyen d'une solution de sulfate de cuivre et d'ammoniaque, de façon à former dans les pores de l'article un hydroxyde de cuivre très peu soluble. According to the invention, this is achieved by treating the article in non-metallic porous material with a solution of copper sulphate and ammonia, so as to form in the pores of the article a very copper hydroxide. poorly soluble.
Le traitement est réalisé au trempage ou par pulvérisation. The treatment is carried out by soaking or spraying.
L'ammoniaque forme, avec le sulfate de cuivre, un complexe cupro-aminé soluble
ce qui permet d'introduire l'élément cuivre dans les pores de l'article ; au secnage, l'eau de ta solution et l'ammoniaque en excès s'évaporent, le pH du milieu diminue et le complexe se transforme en hydroxyde de cuivre très peu soluble. L'article n'étant pas hydrofugé, l'eau de pluie ou de ruissellement peut pénétrer librement dans ces pores et dissoudre progressivement de faibles quantités de sel fongicide en libérant les ions cuivre.Ammonia forms, with copper sulphate, a soluble cupro-amino complex
which allows the copper element to be introduced into the pores of the article; during drying, the water in your solution and the excess ammonia evaporate, the pH of the medium decreases and the complex is transformed into very poorly soluble copper hydroxide. As the article is not water repellent, rain or runoff water can freely penetrate these pores and gradually dissolve small amounts of fungicidal salt by releasing copper ions.
La composition de la solution destinée au traitement est choisie suivant la porosité de matériau à protéger. The composition of the solution intended for treatment is chosen according to the porosity of the material to be protected.
En général, la teneur en sulfate de cuivre (calculée en sulfate anhydre) de la solution de traitement est de préférence dans la gamme de 2 à 12% en poids et la teneur en ammoniaque (généralement concentrée à 20% de NH3) est de préférence égale à au moins deux fois la teneur en sulfate de cuivre, en restant dans la gamme 4-24% en poids. Si la teneur en sulfate est calculée en sulfate de cuivre hydraté (à 5H20), on utilise de préférence de 3 à 18% de sel hydraté. In general, the copper sulphate content (calculated as anhydrous sulphate) of the treatment solution is preferably in the range of 2 to 12% by weight and the ammonia content (generally concentrated to 20% NH3) is preferably equal to at least twice the content of copper sulphate, remaining in the range 4-24% by weight. If the sulphate content is calculated as hydrated copper sulphate (at 5H20), 3 to 18% of hydrated salt is preferably used.
La présente invention s'applique aux articles les plus variés susceptibles d'être exposés aux intempéries comme notamment : éléments de couverture, matériaux de construction, éléments décoratifs extérieurs, bardages, mobilier de jardin. The present invention applies to the most varied articles likely to be exposed to inclement weather such as: roofing elements, building materials, exterior decorative elements, cladding, garden furniture.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9009623A FR2665203A1 (en) | 1990-07-27 | 1990-07-27 | Method for treating an article made from non-metallic porous material in order to prevent its becoming green, and article thus treated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9009623A FR2665203A1 (en) | 1990-07-27 | 1990-07-27 | Method for treating an article made from non-metallic porous material in order to prevent its becoming green, and article thus treated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2665203A1 true FR2665203A1 (en) | 1992-01-31 |
Family
ID=9399175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9009623A Pending FR2665203A1 (en) | 1990-07-27 | 1990-07-27 | Method for treating an article made from non-metallic porous material in order to prevent its becoming green, and article thus treated |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2665203A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538129A (en) * | 1940-01-20 | 1941-07-22 | Ernst Fried | A process for protecting textile material against rot, corrosion and the like |
| US3992146A (en) * | 1971-09-13 | 1976-11-16 | Fazzalari Frank A | Process of using biocidal solutions containing copper sulfate |
| WO1981003142A1 (en) * | 1980-05-09 | 1981-11-12 | V Kure | A method for the prevention or removal of growth of algae and lichens on porous building materials |
| FR2601684A1 (en) * | 1986-07-15 | 1988-01-22 | Tech Tuiles Briques Centre | Process for preventing the proliferation of plants on an article made of nonmetallic porous material, especially a building roof unit |
| GB2205497A (en) * | 1987-04-23 | 1988-12-14 | Neolith Chemicals Ltd | Process for controlling growth or organisms on masonry |
-
1990
- 1990-07-27 FR FR9009623A patent/FR2665203A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB538129A (en) * | 1940-01-20 | 1941-07-22 | Ernst Fried | A process for protecting textile material against rot, corrosion and the like |
| US3992146A (en) * | 1971-09-13 | 1976-11-16 | Fazzalari Frank A | Process of using biocidal solutions containing copper sulfate |
| WO1981003142A1 (en) * | 1980-05-09 | 1981-11-12 | V Kure | A method for the prevention or removal of growth of algae and lichens on porous building materials |
| FR2601684A1 (en) * | 1986-07-15 | 1988-01-22 | Tech Tuiles Briques Centre | Process for preventing the proliferation of plants on an article made of nonmetallic porous material, especially a building roof unit |
| GB2205497A (en) * | 1987-04-23 | 1988-12-14 | Neolith Chemicals Ltd | Process for controlling growth or organisms on masonry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ER | Errata listed in the french official journal (bopi) |
Free format text: 05/92 |