CN101195228A - Wood protection processing method - Google Patents
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- CN101195228A CN101195228A CNA2007103065934A CN200710306593A CN101195228A CN 101195228 A CN101195228 A CN 101195228A CN A2007103065934 A CNA2007103065934 A CN A2007103065934A CN 200710306593 A CN200710306593 A CN 200710306593A CN 101195228 A CN101195228 A CN 101195228A
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Abstract
A processing method for protecting wood belongs to the technical field of antiseptic, mould proofing and insect prevention processing method, which is characterized in that the processing method comprises that adding NaOH or KOH in biomass gasification tars, mixing and stirring the mixture to react for 1-2 hours, then obtaining liquid A, crashing leaves and fruits of camptotheca acuminata decne to 50-200 courses to be mixed with aqueous solution of NaOH or KOH with weight of 5-20 times of camptotheca acuminata decne materials and consistency of 0.1-0.4%, after being stirred homogeneously, the mixture employs ultrasonic cell-break to react for 4-8 hours, after the slurry is filtered and concentrated, obtaining liquid B, the wood for treatment goes through dipping treatment by liquid A or liquid B which are diluted 20-100 times, then the wood after the dipping treatment goes through acidification dipping treatment. The processing method for protecting wood has antiseptic, mould proofing and insect prevention effects, includes no heavy metal which produces toxins to human beings and domestic animals, is safe for human being and causes no environmental pollution, which further is low in cost.
Description
Technical field
The invention belongs to anticorrosion, mildew-resistant, insect-prevention treatment method and technology field, be specially a kind of Wood protection processing method.
Background technology
Timber has tangible biological nature, easily by bacterium, worm invasion and attack, and in use can be according to different applied environments; select for use suitable anticorrosion, mould inhibitor and insect killing substance to handle; can delay the service life of timber effectively, save the timber use amount, protect forest resources.The timber that China uses after preservative treatment at present seldom; and what use mostly is anticorrosion to chemical agent human and that environmental hazard is big; the wood protection technology is faced with new opportunities and challenges, and exploitation low toxicity, timber preservative efficient, free from environmental pollution, that have selectivity and economy are the key issues that this industry is badly in need of solving.Plant chemical ingredient with natural anticorrosion performance extracts and the biological antiseptic of exploitation is the important feature of 21 century timber preservative, but the subject matter that determination of active ingredients and a large amount of costs that extract are these class anticorrisive agents can suitability for industrialized production to be faced.
Biomass gasification tar is the pitchy oily mater that is condensed at normal temperatures by the gas that collection after vegetable material and the industrial wood waste pyrolysis thereof obtains, mainly contain bamboo tar, wood tar and careless tar, bamboo tar is the accessory substance that bamboo surplus material of processing obtains through high temperature pyrolysis, wood tar is the accessory substance that wood machining residues and shell obtain through high temperature pyrolysis, and careless tar is meant the accessory substance that herbaceous plant, crop stalk and crops husk obtain through high temperature pyrolysis.Be processed in the process of corresponding bamboo charcoal, charcoal and the peat composed of rotten mosses at bamboo wood, timber and straw, owing to adopt modern machine to carry out High-efficient Production, accessory substance-the tar of Chan Shenging in process of production, never find its purposes and become refuse, be difficult to again carry out environmental protection treatment, so become the technical barrier of modern production charcoal.
Summary of the invention
At the above-mentioned problems in the prior art; the objective of the invention is to design provides a kind of technical scheme with Wood protection processing method of anticorrosion, mildew-resistant, insect protected effect, does not contain the heavy metal that people and animals are harmful to, to people's safety; free from environmental pollution, and low cost of manufacture.
Described a kind of Wood protection processing method is characterized in that comprising:
1) add NaOH or KOH in the biomass gasification tar, mix, reacted 1-2 hour, the reactant mixture thin up makes A liquid, and the weight ratio of reaction raw materials and water is: biomass gasification tar: NaOH: H
2O is 1: 0.1-0.2: 0.1-0.3, biomass gasification tar: KOH: H
2O is 1: 0.2-0.3: 0.2-0.4, described biomass gasification tar are bamboo tar, wood tar or careless tar;
2) with leaf and the fruit of camplotheca acuminata, be crushed to the 50-200 order with pulverizer, with camplotheca acuminata raw material weight 5-20 doubly, NaOH or the KOH aqueous solution of concentration 0.1-0.4%, stir, use ultrasonic cell-break, reacted 4-8 hour, make slurries, the dope filtration rear filtrate is concentrated into the 10-20% of original filtrate weight through decompression distillation, makes B liquid;
3) pending timber carries out impregnation process with the A liquid or the B liquid that dilute after 20-100 times, and the processing time is: 2-8 hour, and preferred 3-5 hour;
4) acid solution that re-uses concentration 1-10% through the timber of above-mentioned impregnation process is carried out the acidifying impregnation process, processing time is 2-8 hour, preferred 3-5 hour, described acid solution was the dilution of hydrochloric acid, sulfuric acid, nitric acid, acetic acid, bamboo vinegar liquid, pyrolkigneous liquid, boric acid, tartaric acid or citric acid.
Described a kind of Wood protection processing method is characterized in that using in the step 3) mixed liquor thin up 20-100 of equivalent A liquid and B liquid doubly the back timber to be carried out impregnation process.
Described a kind of Wood protection processing method is characterized in that step 2) in the leaf of camplotheca acuminata and fruit pulverize back and camplotheca acuminata raw material weight 8-20 NaOH or KOH aqueous solution doubly.
Described a kind of Wood protection processing method is characterized in that step 2) in the dope filtration rear filtrate be concentrated into the 14-16% of original filtrate weight through decompression distillation.
Described a kind of Wood protection processing method is characterized in that in the step 3) A liquid or B liquid dilution 20-80 doubly.
Described a kind of Wood protection processing method, the temperature that it is characterized in that timber pickling processing and acidifying impregnation process are that 15-50 ℃, pressure are 0.2-1.1 atmospheric pressure.
Described a kind of Wood protection processing method, the temperature that it is characterized in that timber pickling processing and acidifying impregnation process are that 20-40 ℃, pressure are 0.5-1.0 atmospheric pressure.
The wood protection principle is as described below:
1) is not dissolved in the biomass gasification tar of water and NaOH or KOH reaction, generates the tar sodium or the tar potassium that are dissolved in water, i.e. reactant mixture A liquid.Be not dissolved in the camptothecine of water and NaOH or KOH reaction, camptothecine E ring Alpha-hydroxy lactone structure is that it is met alkali and can open lactonic ring when room temperature, and generation is dissolved in the camptothecine sodium salt or the camptothecine sylvite of water, i.e. reactant mixture B liquid.
2) pending timber carries out impregnation process with A liquid or B liquid after diluting, and the A liquid or the B liquid that are dissolved in water are penetrated in the timber; Re-use acid solution through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process, the A liquid that is penetrated in the timber is met the tar that the acid reduction obtains being not dissolved in water, is penetrated into B liquid in the timber and meets acid and close lactonic ring again and reduce the camptothecine that obtains being not dissolved in water.Also utilized anti-corrosion composition unknown in natural bamboo vinegar liquid, the pyrolkigneous liquid, and boric acid also is good anticorrisive agent through the boric acid sodium salt itself that the reaction back generates.The tar and the camptothecine that are not dissolved in water have protective effect to timber, and it is difficult for by bacterium, worm invasion and attack, and be also not perishable, can effectively delay the service life of timber, saves the timber use amount, protects forest resources.
Above-mentioned a kind of Wood protection processing method, make the Wood protecting agent that is dissolved in water fully by chemical reaction, solved the difficult problem that biomass gasification tar and camptothecine are not dissolved in water, this Wood protecting agent derives from natural materials, do not contain the heavy metal that arsenic, chromium etc. are harmful to people and animals, to people's safety, also help preserving the ecological environment, and low cost of manufacture; This Wood protecting agent is water miscible mixture; can be penetrated into timber inside very soon; when handling through acid solution again; acid itself also can rapid osmotic be arrived timber inside; and carry out chemical reaction in timber inside; at inner water-fast crude tar and the camptothecine that generates of timber, solved the resistance leachability difficult problem of active ingredient and had long-lasting.
Percentage composition is the weight percentage of pure material in the present specification.
The specific embodiment
Now, further specify beneficial effect of the present invention in conjunction with embodiments of the invention.
Embodiment 1
Drop into 50kg water in the 500L reactor, drop into 32kg NaOH more slowly, be stirred to dissolving fully, slowly add 200kg bamboo tar again, stirring reaction 1 hour makes A liquid;
100 times of dilute with water A liquid 20 ℃ of temperature, under 0.5 atmospheric pressure of pressure, were handled timber 2 hours, re-use 1% watery hydrochloric acid through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process under uniform temp and pressure condition, and the processing time is 2 hours.
Embodiment 2
Input 400kg concentration is 0.2% the NaOH aqueous solution in the 500L reactor, add 40kg and be crushed to 100 purpose Common Camptotheca Fruit powder, stirring reaction 4 hours, the dope filtration rear filtrate is through decompression distillation (0.2 atmospheric pressure, be heated to 80 ℃) be concentrated to 50kg, make B liquid;
80 times of dilute with water B liquid 20 ℃ of temperature, under 1 atmospheric pressure of pressure, were handled timber 3 hours, re-use 5% aqueous acetic acid through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process under uniform temp and pressure condition, and the processing time is 3 hours.
Embodiment 3
Drop into 175kg grass tar in the 500L reactor, slowly drop into 34kg NaOH again, stirring reaction 1.5 hours slowly adds 45kg water, stirs, and makes A liquid;
Input 400kg concentration is 0.2% the NaOH aqueous solution in the 500L reactor, add 40kg and be crushed to 100 purpose Common Camptotheca Fruit powder, stirring reaction 4 hours, the dope filtration rear filtrate is through decompression distillation (0.2 atmospheric pressure, be heated to 80 ℃) be concentrated to 50kg, make B liquid;
The mixed liquor of dilute with water A liquid and B liquid (A: B=1: 1) 100 times, 25 ℃ of temperature, under 1 atmospheric pressure of pressure, handled timber 3 hours, re-use 5% bamboo vinegar liquid through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process under uniform temp and pressure condition, the processing time is 3 hours.
Embodiment 4
Drop into 50kg water in the 500L reactor, slowly drop into 52kg potassium hydroxide again, be stirred to dissolving fully, slowly add the 200kg wood tar again, stirring reaction 2 hours makes A liquid;
30 times of dilute with water A liquid 35 ℃ of temperature, under 1 atmospheric pressure of pressure, were handled timber 3 hours, re-use 10% pyrolkigneous liquid through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process under uniform temp and pressure condition, and the processing time is 3 hours.
Embodiment 5
Input 400kg concentration is 0.3% the KOH aqueous solution in the 500L reactor, add 25kg and be crushed to 200 purpose common camptotheca leaf powder, and stirring reaction 5 hours, the dope filtration rear filtrate is concentrated to 50kg through decompression distillation (0.2 atmospheric pressure is heated to 80 ℃), makes B liquid;
60 times of dilute with water B liquid 40 ℃ of temperature, under 1 atmospheric pressure of pressure, were handled timber 5 hours, re-use 5% boric acid through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process under uniform temp and pressure condition, and the processing time is 5 hours.
Embodiment 6
Drop into 100kg water in the 500L reactor, slowly drop into 55kg potassium hydroxide again, be stirred to dissolving fully, slowly add 200kg bamboo tar again, stirring reaction 2 hours makes A liquid;
Input 600kg concentration is 0.3% sodium hydrate aqueous solution in the 500L reactor, add 40kg and be crushed to 150 purpose Common Camptotheca Fruit powder, stirring reaction 8 hours, the dope filtration rear filtrate is through decompression distillation (0.2 atmospheric pressure, be heated to 80 ℃) be concentrated to 80kg, make B liquid;
The mixed liquor of dilute with water A liquid and B liquid (A: B=1: 1) 50 times, 50 ℃ of temperature, under 1.1 atmospheric pressure of pressure, handled timber 3 hours, re-use 7% citric acid through the timber of above-mentioned impregnation process and carry out the acidifying impregnation process under uniform temp and pressure condition, the processing time is 3 hours.
Below by its prevention effect of test explanation:
Fungus-proof antisepsis is prevented the termite-proof effect table of blue stain
| Embodiment | Repeat average | Inhibiting rate % | |||||||
| The blue stain bacterium | Aspergillus niger | Mould | Trichoderma viride | Whiterot fungi | Brown rot fungus | Soft-rot fungi | Termite | ||
| Embodiment 1 | Repeat 1 | 95 | ?97 | ?99 | ?96 | ?94 | ?95 | ?92 | ?91 |
| Repeat 2 | 87 | ?84 | ?87 | ?81 | ?82 | ?85 | ?89 | ?85 | |
| Repeat 3 | 77 | ?75 | ?75 | ?74 | ?70 | ?68 | ?70 | ?74 | |
| On average | 86.3 | ?85.3 | ?87 | ?83.7 | ?82 | ?82.7 | ?83.7 | ?83.3 | |
| Embodiment 2 | Repeat 1 | 96 | ?93 | ?92 | ?89 | ?87 | ?92 | ?94 | ?92 |
| Repeat 2 | 91 | ?87 | ?84 | ?80 | ?82 | ?89 | ?90 | ?84 | |
| Repeat 3 | 81 | ?80 | ?75 | ?72 | ?71 | ?80 | ?85 | ?74 | |
| On average | 89.3 | ?86.7 | ?84 | ?80.3 | ?80 | ?87 | ?89.7 | ?83.3 | |
| Embodiment 3 | Repeat 1 | 92 | ?93 | ?95 | ?88 | ?87 | ?93 | ?95 | ?90 |
| Repeat 2 | 81 | ?82 | ?82 | ?85 | ?79 | ?76 | ?84 | ?84 | |
| Repeat 3 | 70 | ?71 | ?72 | ?70 | ?62 | ?61 | ?72 | ?76 | |
| On average | 81 | ?82 | ?83 | ?81 | ?76 | ?76.7 | ?83.7 | ?83.3 | |
| Embodiment 4 | Repeat 1 | 94 | ?95 | ?93 | ?93 | ?90 | ?88 | ?90 | ?93 |
| Repeat 2 | 84 | ?82 | ?82 | ?84 | ?83 | ?80 | ?81 | ?82 | |
| Repeat 3 | 72 | ?74 | ?63 | ?66 | ?76 | ?64 | ?67 | ?74 | |
| On average | 83.3 | ?83.7 | ?79 | ?81 | ?83 | ?77.3 | ?79.3 | ?83 | |
| Embodiment 5 | Repeat 1 | 92 | ?93 | ?93 | ?94 | ?92 | ?96 | ?94 | ?95 |
| Repeat 2 | 86 | ?87 | ?87 | ?76 | ?76 | ?78 | ?82 | ?88 | |
| Repeat 3 | 66 | ?66 | ?65 | ?66 | ?66 | ?56 | ?67 | ?74 | |
| On average | 81.3 | ?82 | ?82 | ?78.7 | ?78 | ?76.7 | ?81 | ?85.7 | |
| Embodiment 6 | Repeat 1 | 91 | ?88 | ?75 | ?95 | ?78 | ?92 | ?88 | ?68 |
| Repeat 2 | 86 | ?90 | ?86 | ?88 | ?85 | ?90 | ?92 | ?77 | |
| Repeat 3 | 79 | ?65 | ?91 | ?74 | ?93 | ?80 | ?77 | ?94 | |
| On average | 85.3 | ?81 | ?84 | ?85.7 | ?85.3 | ?87.3 | ?85.7 | ?79.7 | |
Above-mentioned test data shows: said preparation is good to the prevention effect of blue stain bacterium, aspergillus niger, mould, Trichoderma viride, whiterot fungi, brown rot fungus, soft-rot fungi, termite.
Claims (7)
1. Wood protection processing method is characterized in that comprising:
1) add NaOH or KOH in the biomass gasification tar, mix, reacted 1-2 hour, the reactant mixture thin up makes A liquid, and the weight ratio of reaction raw materials and water is: biomass gasification tar: NaOH: H
2O is 1: 0.1-0.2: 0.1-0.3, biomass gasification tar: KOH: H
2O is 1: 0.2-0.3: 0.2-0.4, described biomass gasification tar are bamboo tar, wood tar or careless tar;
2) with leaf and the fruit of camplotheca acuminata, be crushed to the 50-200 order with pulverizer, with camplotheca acuminata raw material weight 5-20 doubly, NaOH or the KOH aqueous solution of concentration 0.1-0.4%, stir, use ultrasonic cell-break, reacted 4-8 hour, make slurries, the dope filtration rear filtrate is concentrated into the 10-20% of original filtrate weight through decompression distillation, makes B liquid;
3) pending timber carries out impregnation process with the A liquid or the B liquid that dilute after 20-100 times, and the processing time is: 2-8 hour, and preferred 3-5 hour;
4) acid solution that re-uses concentration 1-10% through the timber of above-mentioned impregnation process is carried out the acidifying impregnation process, processing time is 2-8 hour, preferred 3-5 hour, described acid solution was the dilution of hydrochloric acid, sulfuric acid, nitric acid, acetic acid, bamboo vinegar liquid, pyrolkigneous liquid, boric acid, tartaric acid or citric acid.
2. a kind of Wood protection processing method as claimed in claim 1 is characterized in that using in the step 3) mixed liquor thin up 20-100 of equivalent A liquid and B liquid doubly the back timber to be carried out impregnation process.
3. a kind of Wood protection processing method as claimed in claim 1 is characterized in that step 2) in the leaf of camplotheca acuminata and fruit pulverize back and camplotheca acuminata raw material weight 8-20 NaOH or KOH aqueous solution doubly.
4. a kind of Wood protection processing method as claimed in claim 1 is characterized in that step 2) in the dope filtration rear filtrate be concentrated into the 14-16% of original filtrate weight through decompression distillation.
5. a kind of Wood protection processing method as claimed in claim 1 is characterized in that in the step 3) A liquid or B liquid dilution 20-80 doubly.
6. a kind of Wood protection processing method as claimed in claim 1, the temperature that it is characterized in that timber pickling processing and acidifying impregnation process are that 15-50 ℃, pressure are 0.2-1.1 atmospheric pressure.
7. a kind of Wood protection processing method as claimed in claim 1, the temperature that it is characterized in that timber pickling processing and acidifying impregnation process are that 20-40 ℃, pressure are 0.5-1.0 atmospheric pressure.
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| CNB2007103065934A CN100515702C (en) | 2007-12-31 | 2007-12-31 | Wood protection processing method |
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| CNB2007103065934A CN100515702C (en) | 2007-12-31 | 2007-12-31 | Wood protection processing method |
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| CN101195228A true CN101195228A (en) | 2008-06-11 |
| CN100515702C CN100515702C (en) | 2009-07-22 |
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| CN106393374A (en) * | 2016-08-31 | 2017-02-15 | 阜南县天亿工艺品有限公司 | Machining method of high-strength high-toughness composite board |
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Address after: Ling'an City, Hangzhou City, Zhejiang province 311300 Ring Road No. 88 Patentee after: ZHEJIANG A & F University Address before: 311300 Zhejiang province Ling'an City Kam Street No. 252 Patentee before: Zhejiang A&F University |
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Effective date of registration: 20140127 Address after: 313307 Kunming copper industry zone, Lingang Economic Development Zone, Meishan Town, Anji County, Huzhou, Zhejiang Patentee after: ZHEJIANG FENGHUI BAMBOO PRODUCTS CO.,LTD. Address before: Ling'an City, Hangzhou City, Zhejiang province 311300 Ring Road No. 88 Patentee before: Zhejiang A & F University |