CS201298B1 - Foam-forming protective agent against fire - Google Patents
Foam-forming protective agent against fire Download PDFInfo
- Publication number
- CS201298B1 CS201298B1 CS484278A CS484278A CS201298B1 CS 201298 B1 CS201298 B1 CS 201298B1 CS 484278 A CS484278 A CS 484278A CS 484278 A CS484278 A CS 484278A CS 201298 B1 CS201298 B1 CS 201298B1
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- CS
- Czechoslovakia
- Prior art keywords
- parts
- weight
- foam
- protective agent
- against fire
- Prior art date
Links
- 239000003223 protective agent Substances 0.000 title 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 5
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 239000012047 saturated solution Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920001353 Dextrin Polymers 0.000 claims description 2
- 239000004375 Dextrin Substances 0.000 claims description 2
- DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 235000019425 dextrin Nutrition 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 8
- 239000003755 preservative agent Substances 0.000 description 7
- 230000002335 preservative effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 4
- 230000004580 weight loss Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 2
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 235000019837 monoammonium phosphate Nutrition 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 239000010749 BS 2869 Class C1 Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Fireproofing Substances (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Predmetom vynálezu je penotvorný ochranný prostriedok proti ohňů, určený na ochranu dřeva a dřevných materiálov, ktorý znižuje ich horTavosť a zvyšuje požiarnu odoTnosť stavebných konštrukcií zhotovených z týchto materiálov.SUMMARY OF THE INVENTION The present invention provides a flame retardant for the protection of wood and wood materials, which reduces their flammability and increases the fire resistance of building structures made of these materials.
V súčasnosti používané ochranné prostriedky proti ohňů majú mnoho nedostatkov. Predovšetkým je to poměrně nízká účinnost’ pri běžných spósoboch aplikácie u prostriedkov na báze vodných roztokov amonných solí a krátká životnost’ náterov s obsahom alkalických kremičitanov. K ďalším nevýhodám patří 1’ahká vyluhovatel’nosť, zhoršenie povrchového vzhPadu materiálu a jeho mechanických vlastností. Rózne nedostatky sa prejavili i u vyvíjených penotvorných ochranných náterov ako například hygienická závadnosť, lepivost’, nedostatočná stálost’, zhoršenie vzhPadu chráněného materiálu.Currently used fire protection means have many drawbacks. In particular, it is relatively low in performance in conventional application methods for aqueous ammonium salt formulations and in the short life of the alkali silicate coating. Other drawbacks include 1 'easy leachability', deterioration of the surface appearance of the material and its mechanical properties. Various deficiencies have also been observed in the development of foaming protective coatings, such as hygienic defects, tackiness, lack of stability, and deterioration in the appearance of the material to be protected.
Váčšinu týchto nedostatkov odstraňuje ochranný prostriedok podPa vynálezu, ktorý obsahuje 25 až 50 hmotnostných dielov organického pojivá, například disperzného akrylátového polyméru alebo melamínformaldehydovej živice, 5 až 10 hmotných dielov močoviny alebo ureafosfátu, 5 až 10 hnotnostných dielov hydrolyzovaného škrobu alebo dextriňu, 5 až 10 hmotnostných dielov hydrogenfosforečnanu amonného alebo dihydrogenfosforečnanu amonného, 1 až 5 hmotnostných dielov oxalátu draselného alebo tomu zodpovedajúce množstvo jeho vodného roztoku, vzniklého zmiešaním ekvivalentných množstiev nasýtených roztokov kyseliny oxálovej a hydroxidu draselného, 10 až 15 hmotnostných dielov vody a až 5 hmotnostných dielov aditív, zlepšujúcich homogenitu systému, například karboxymatylcelulózy alebo tenzidu.Most of these drawbacks are overcome by a preservative according to the invention comprising 25 to 50 parts by weight of an organic binder, for example a dispersed acrylate polymer or melamine-formaldehyde resin, 5 to 10 parts by weight of urea or ureaphosphate, 5 to 10 parts by weight of hydrolysed starch or dextrin. parts by weight of ammonium hydrogen phosphate or ammonium dihydrogen phosphate, 1 to 5 parts by weight of potassium oxalate or an equivalent amount of its aqueous solution formed by mixing equivalent amounts of saturated solutions of oxalic acid and potassium hydroxide, 10 to 15 parts by weight of water and up to 5 parts by weight of additives , for example, carboxymathylcellulose or a surfactant.
Výroba ochranného prostriedku podPa vynálezu je jednoduchá a spočívá s postupnom primiešavaní jednotlivých zložiek a zhomogenizovaní zmesi.The preparation of the preservative according to the invention is simple and consists in the gradual mixing of the individual components and the homogenization of the mixture.
Životnost’ prostriedku a jeho ochranný účinok proti ohňů je lepší ako u doteraz používaných prostriedkov. Jeho aplikáciou sa súčasne priaznivo upravuje vzhTad povrchu chráněných materiálov, pričom je možné zvolit’ transparentnost' alebo farebný odtieň a kryciu schopnost’ prídavkom farbív alebo anorganických pigmentov. Prostriedok podl’a vynálezu umožňuje znížiť horTavosť chráněných materiálov, ktoré možno zatriediť podl’a CSN 73 0853 do triedy C 1 připadne B. Dostatočné aplikačně množstvo prostriedku je 200 až 400 g/m2.The durability of the composition and its fire protection effect is better than the compositions used hitherto. At the same time, it is favorably treated to the surface of the materials to be protected, whereby it is possible to select transparency or shade and hiding power by adding dyes or inorganic pigments. The composition according to the invention makes it possible to reduce the flammability of the protected materials which can be classified according to CSN 73 0853 in class C1 or B. A sufficient application rate of the composition is 200 to 400 g / m 2 .
Příklady použitia prostriedku:Examples of use:
Příklad 1Example 1
K 25 hmotnostným dielom disperzného akrylátového polyméru sa přidalo 5 hmotnostných dielov močoviny a 5 hmotnostných dielov rozpuštěného škrobu a 1 hmotnostný diel karboxymetylcelulózy.To 25 parts by weight of the dispersed acrylate polymer was added 5 parts by weight of urea and 5 parts by weight of dissolved starch and 1 part by weight of carboxymethylcellulose.
Zmes sa zhomogenizovala a primiešal sa roztok 10 hmotnostných dielov hydrogénfosforečnanu amonného a 5 hmotnostných dielov oxalátu draselného v 35 hmotnostných dieloch vody. Ochranným prostriedkom sa natřeli vzorky smrekového dřeva o hrúbke 10 mm. Vznikol transparentný ochranný nátěr. Skúšala sa horPavosť chráněného dřeva podPa ČSN 73 0853. Vzorky s príjmom ochranného prostriedku cca 300 g/m2 vykázali úbytok hmotnosti v priemere 5,8 %, čo zodpovedá triede horPavosti C 1. Vzorky s príjmom ochranného prostriedku cca 600 g/nr vykázali úbytok hmotnosti v priemere 4,4 %, čo zodpovedá triede horPavosti B.The mixture was homogenized and mixed with a solution of 10 parts by weight of ammonium hydrogen phosphate and 5 parts by weight of potassium oxalate in 35 parts by weight of water. 10 mm thick spruce wood samples were coated with the preservative. A transparent protective coating was formed. The flammability of the protected wood was tested according to ČSN 73 0853. Samples with a preservative intake of approx. 300 g / m 2 showed a weight loss of 5.8% on average, which corresponds to the flammability class C 1. Samples with a preservative intake of approx. on average 4.4%, which corresponds to the flammability class B.
Příklad 2Example 2
K 25, hmotnostným dielom melamínformaldehydovej živice sa přidalo 5 hmotnostných dielov močoviny, 5 hmotnostných dielov rozpustného škrobu, 5 hmotnostných dielov hydrogénfosforečnanu amonného, 2,5 hmotnostných dielov oxalátu draselného a 5 hmotnostných dielov etanolu. Zmes sa zhomogenizovala a ochranný prostriedok sa natřel na vzorky smrekového dřeva o hrúbke 10 mm. V skúškach horPavosti podPa ČSN 73 0853 vykázali vzorky úbytok hmotnosti 4,7 %, čo zodpovedá triede B pri příjme cca 400 g/m2. Příklad 3To 25 parts by weight of melamine-formaldehyde resin were added 5 parts by weight of urea, 5 parts by weight of soluble starch, 5 parts by weight of ammonium hydrogen phosphate, 2.5 parts by weight of potassium oxalate and 5 parts by weight of ethanol. The mixture was homogenized and the preservative was coated on spruce samples of 10 mm thickness. In the flammability tests according to ČSN 73 0853, the samples showed a weight loss of 4.7%, which corresponds to the class B at the reception of about 400 g / m 2 . Example 3
K 25 hmotnostným dielom močovinoformaldehydovej živice sa přidalo 5 hmotnostných dielov močoviny, 5 hmotnostných dielov rozpustného škrobu, 0,5 hmot. dielu Slovafonu N, 5 hmotnostných dielov dihydrogénfosforečnanu amonného a nasýtený roztok 3,8 hmotnostných dielov kyseliny oxalovej s 1,7 hmot. dielmi hydroxidu draselného. Po premiešaní sa ochranný prostriedok aplikoval na drevotrieskové došky o hrúbke 10 mm. PodPa ČSN 73 0853 činil úbytok hmotnosti chráněných drevotrieskových dosák v priemere 6,6 %, čo zodpovedá triede horPavosti C 1.To 25 parts by weight of urea-formaldehyde resin was added 5 parts by weight of urea, 5 parts by weight of soluble starch, 0.5 parts by weight of urea. 5 parts by weight of N, 5 parts by weight of ammonium dihydrogen phosphate and a saturated solution of 3.8 parts by weight of oxalic acid with 1.7% by weight of ammonium phosphate; parts of potassium hydroxide. After mixing, the preservative was applied to 10 mm thick chipboard. According to ČSN 73 0853 the weight loss of protected particle board was on average 6.6%, which corresponds to the flammability class C 1.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS484278A CS201298B1 (en) | 1978-07-20 | 1978-07-20 | Foam-forming protective agent against fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS484278A CS201298B1 (en) | 1978-07-20 | 1978-07-20 | Foam-forming protective agent against fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS201298B1 true CS201298B1 (en) | 1980-10-31 |
Family
ID=5392075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS484278A CS201298B1 (en) | 1978-07-20 | 1978-07-20 | Foam-forming protective agent against fire |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS201298B1 (en) |
-
1978
- 1978-07-20 CS CS484278A patent/CS201298B1/en unknown
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