CN1060487A - The fire-retarding preservative for wood that contains organic composition - Google Patents
The fire-retarding preservative for wood that contains organic composition Download PDFInfo
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- CN1060487A CN1060487A CN 91108348 CN91108348A CN1060487A CN 1060487 A CN1060487 A CN 1060487A CN 91108348 CN91108348 CN 91108348 CN 91108348 A CN91108348 A CN 91108348A CN 1060487 A CN1060487 A CN 1060487A
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- fire
- retarding
- wood
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- corrosion agent
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Abstract
What the present invention relates to is a kind of fire retardant, anticorrosive medicament that is used for treating of wood, by can the dissolved ammonium polyphosphate in the hot water, one-tenth such as boron substance, quaternary ammonium salt is grouped into.
Description
What the present invention relates to is that a kind of anticorrosion using of fire-retarding of wood that contains organic composition handled medicament.
Extensive for using, the natural timber that consumption is big, improving its fire-retardant fireproof performance and antiseptic property as far as possible is particularly important.The processing medicament that can have fire-retardant and anticorrosion dual-use function simultaneously can be divided into two classes at present, one class is made up of pure inorganic components, as disclosed in documents such as russian patent SU1017500A and SU1255435A be exactly inorganic type, it is except that problems such as the toxicity of ingredient itself and pollution, and weak point also is with the timber hydroscopicity of its processing big.Another kind of is the processing medicament that contains organic composition, as just introduced the phosphoric acid salt that contains fluorochemical, ammonium and the processing material of compositions such as higher fatty acid or urea respectively in russian patent SU613894B and SU663581B.Wherein contained fluorochemical also owing to its poorly water-soluble has influenced dried salts contg in the processed timber, has caused the reduction of fire retardant effect, thereby only should use as the coating form except that toxicity that exists and contaminative.
The object of the present invention is to provide a kind of low toxicity, anticorrosion the using of the fire-retarding of wood that contains organic composition pollution-free and the fire retardant, anticorrosive excellent performance to handle medicament.
The composition of the said fire-retarding preservative for wood of the present invention (weight %) is: can dissolved polyphosphoric acid ammonium salt 64-72 in the hot water, and boron substance 22-35, quaternary ammonium salt material 3-7.Ammonium polyphosphate is present known good applied fireproofing, has water-soluble and branch water-insoluble by the big I of its polymerization degree.Though experiment shows its polymerization degree increase water-soluble degree is reduced, the fire-retardant fireproof performance improves thereupon, and the timber hydroscopicity of processing is little.When guaranteeing in common hot water below 100 ℃, to make under its dissolved prerequisite, adopt the ammonium polyphosphate of high-polymerization degree can make it obtain satisfied unification in flame retardant resistance and for handling between the required solvability of timber as far as possible.When using chemicals treatment timber of the present invention, only need be controlled at below 100 ℃, for example carry out under the heating condition just can not having the problem aspect its solvability 50-80 ℃ make things convenient for.Another advantage that this treatment condition also have simultaneously is the range of choice that can enlarge boron substance essential to the invention.Though, often make actual use very inconvenient or be restricted because of the relation of its solubleness as some salts such as boraxs because boron substances such as boron, boric acid and various borates are known fire retardant materials.And in the present invention,, also help reducing cost even the boron substance that solubleness is very little in the cold water such as borax even also can be used alone has both helped reducing the component kind.
Quaternary ammonium compound uses existing research and report as the wood preservation material.But in the present invention, be used with other component, it also has good flame fire prevention booster action simultaneously and improves the infiltrative surfactivity effect of medicament.For improving its over-all properties in these areas, the present invention advises should having at least on the one hand one and is the long chain hydrocarbon more than the C7 in its each substituted hydrocarbon radical, as existing C12 or single long chain hydrocarbon of C14 or the two long chain hydrocarbons of introducing of C8C10 or C10C10 etc., help improving antiseptic property; Serve as better to select quaternary ammonium halides salt for use on the other hand, more help strengthening its fire-retardant fireproof performance.
For reducing to the various Effect on Performance of timber itself, handle the potential of hydrogen of medicament and be advisable with the nearly neutrality of pH6-7, therefore in treating of wood medicament of the present invention, can suitably select suitable acid-base modifier as required for use in case of necessity.For example when the fire-retarding preservative of forming by said components of the present invention is alkalescence, can select an amount of mineral acid commonly used for use, example hydrochloric acid, sulfuric acid, phosphoric acid etc. are regulated pH, wherein especially to select for use phosphoric acid for well, because of its deacidification warm in nature and and corrodibility little outside, also can have auxiliary flame retardant properties.
This shows, collaborative by cooperatively interacting of the above-mentioned component that respectively has a multiple action, make treating of wood medicament of the present invention both simplify composition as far as possible, can reduce the consumption consumption in the actual use again, also can improve effect simultaneously in fire-retardant and anticorrosion each side.The timber that the aqueous solution that uses fire-retarding preservative 10-20% of the present invention is handled under 50-80 ℃ of condition carries out the fire-retardant fireproof test and shows that processing medicament of the present invention can stop flaming combustion, can suppress flameless combustion again.In dried salt amount is 35kg/m
3The time, rate of lostmass after fire is about 15%, burning average residual length 18-21cm.Treating of wood medicament of the present invention belongs to lower toxicity, and is not volatile, and the physicals of timber is not had influence, and its pyrolysis product is nonirritant and corrodibility also.The relevant data of fire-retardant fireproof test sees Table 1.The corrosion-resistanting test that with the birch is test materials the results are shown in Table 2.
Some concrete composition example as fire-retarding of wood anti-corrosion agent of the present invention sees Table 3, and quaternary ammonium salt wherein is a chlorination dimethyl benzyl dodecyl ammonium.But these examples should not constitute limitation of the scope of the invention.
Table 1
| Numbering | Dried salt amount (kg/m 3) | Average depth of penetration (mm) | The flaming combustion time (second) | The flameless combustion time (second) | Rate of lostmass after fire (%) |
| 1 | 30.06 | ≥10 | 0 | 0 | 15.72 |
| 2 | 49.04 | ≥10 | 0 | 0 | 12.93 |
| 3 | 56.66 | ≥10 | 0 | 0 | 9.46 |
Table 2
| Numbering | Concentration (%) | pH | Dried salt amount (kg/m 3) | Rate of weight loss (%) | Mycelia spreads situation |
| 1 | 5 | 8－9 | 15.58 | 11.73 | The surface has mycelia to spread |
| 2 | 5 | 8－9 | 18.48 | 0 | Do not have |
Table 3
| (weight %) | Example 1 | Example 2 | Example 3 |
| Ammonium polyphosphate | 66 | 64 | 70 |
| Boric acid | 13 | 22 | |
| Borax | 26 | 13 | |
| Quaternary ammonium salt | 3 | 4 | 4 |
| Transfer pH phosphoric acid | 5 | 6 | 4 |
Claims (6)
1, a kind of phosphoric acid salt of ammonium and fire-retarding of wood anti-corrosion agent of organic composition of containing is characterized in that consisting of (weight %)
Soluble ammonium polyphosphate 64-72 in the hot water
Boron substance 22-35
Quaternary ammonium salt material 3-7
Acid-alkali accommodation material in case of necessity is an amount of.
2, fire-retarding of wood anti-corrosion agent as claimed in claim 1, the polymerization degree that it is characterized in that phosphoric acid in the said ammonium polyphosphate is more than 20.
3, fire-retarding of wood anti-corrosion agent as claimed in claim 1 is characterized in that having an alkyl carbochain in the said quaternary ammonium salt material at least is more than the C7.
4, fire-retarding of wood anti-corrosion agent as claimed in claim 1 is characterized in that said quaternary ammonium salt material is a quaternary ammonium halides salt.
5, as the described fire-retarding of wood anti-corrosion agent of one of claim 1 to 4, the acid-alkali accommodation material that it is characterized in that said usefulness in case of necessity is a mineral acid.
6, fire-retarding of wood anti-corrosion agent as claimed in claim 5 is characterized in that the mineral acid that said acid-alkali accommodation is used is a phosphoric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108348 CN1033497C (en) | 1991-11-18 | 1991-11-18 | Organic components-contained fire-retarding preservative for wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108348 CN1033497C (en) | 1991-11-18 | 1991-11-18 | Organic components-contained fire-retarding preservative for wood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1060487A true CN1060487A (en) | 1992-04-22 |
| CN1033497C CN1033497C (en) | 1996-12-11 |
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ID=4909247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108348 Expired - Fee Related CN1033497C (en) | 1991-11-18 | 1991-11-18 | Organic components-contained fire-retarding preservative for wood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033497C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443273C (en) * | 2004-12-16 | 2008-12-17 | 龙有前 | Wood protective agent |
| CN107443521A (en) * | 2017-08-21 | 2017-12-08 | 含山县茂盛胶合板厂 | A kind of preparation method of weatherability preserved plywood |
| CN113679996A (en) * | 2021-08-17 | 2021-11-23 | 湖南神州防务科技有限公司 | High-ammonium-polyphosphate-based forest dry powder extinguishing agent and preparation method thereof |
-
1991
- 1991-11-18 CN CN 91108348 patent/CN1033497C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443273C (en) * | 2004-12-16 | 2008-12-17 | 龙有前 | Wood protective agent |
| CN107443521A (en) * | 2017-08-21 | 2017-12-08 | 含山县茂盛胶合板厂 | A kind of preparation method of weatherability preserved plywood |
| CN113679996A (en) * | 2021-08-17 | 2021-11-23 | 湖南神州防务科技有限公司 | High-ammonium-polyphosphate-based forest dry powder extinguishing agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033497C (en) | 1996-12-11 |
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