CN102328334A - Antiseptic, preparation method thereof and method for treating wood/bamboo with antiseptic - Google Patents
Antiseptic, preparation method thereof and method for treating wood/bamboo with antiseptic Download PDFInfo
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- CN102328334A CN102328334A CN201010230648XA CN201010230648A CN102328334A CN 102328334 A CN102328334 A CN 102328334A CN 201010230648X A CN201010230648X A CN 201010230648XA CN 201010230648 A CN201010230648 A CN 201010230648A CN 102328334 A CN102328334 A CN 102328334A
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Abstract
The invention discloses a bamboo/wood antiseptic, a preparation method thereof and a treating method for modifying bamboo/ wood by using the antiseptic. The antiseptic comprises a camphortree leaf water extract and urea-formaldehyde resin, wherein the percentage concentration by mass of the camphortree leaf water extract is 5-10 percent, and the solid content of the urea-formaldehyde resin is 40-60 percent. The antiseptic contains the camphortree leaf extract, and serves as a natural environmentally-friendly antiseptic without heavy metal or any toxic or side effect on people and livestock; and corrosion-resistant wood/bamboo prepared with the method has a remarkable antiseptic effect, high anticorrosion performance, mold preventing and controlling efficiencies of up to 75-50 percent and stain mold preventing and controlling efficiencies of up to 50-25 percent, and meets the requirement of level II (corrosion resistant level) specified in the national standard GB/T13942.1-1992.
Description
Technical field
The present invention relates to a kind of impreg/bamboo wood infiltration liquid, this infiltration liquid the preparation method and with the preparation method of this infiltration liquid and with the processing method of this infiltration liquid impreg/bamboo wood, particularly a kind of impregnating fluid, its preparation method and utilize this impregnating fluid to handle wood/bamboo wood method.
Background technology
Wood/bamboo wood is as a kind of biological material of being made up of natural polymer; Advantages such as it is big to have the ratio of strength to weight, and power consumption of polymer processing is few, and environmental pollution is relatively little; Material is loose, the wood property variation is big but also exist simultaneously, receives infringement and the ruined deficiency of environment and microorganism easily.
Traditional wood/bamboo wood anticorrisive agent is handled can effectively improve wood/bamboo wood rotproofness to a certain extent; Prolong the service life of wood/bamboo wood; But there is comparatively serious deficiency in traditional wood/bamboo wood preservative treatment on the aspect performances such as physical mechanics intensity that improve wood/bamboo wood; Most in addition traditional wood/the bamboo wood anticorrisive agent is main active ingredient with elements such as copper, chromium, arsenic; And these metal ingredients have potential harm to health of human body and Environmental security, thus make the preservative treatment material especially the use of artificial forest preservative treatment wood/bamboo wood receive certain restriction.
At present, the anticorrisive agent that is used for the bamboo wood preservation mainly contains the waterborne preservative that comprises copper azoles (CuAz), quaternary ammonium copper (ACQ), alkylammonium thing (AAC), chromatize copper arsenate (CCA).But along with environmental problem receives people's attention day by day, the environmental problem of anticorrisive agent also becomes the key that anticorrisive agent is selected.Because some anticorrisive agents have leakage in various degree and ooze out in production and use, waste and old preservative treatment bamboo timber recovery meeting simultaneously causes adverse effect to environment, and the health of harm humans.A lot of anticorrisive agents are announced the restriction use by a lot of countries.Environmental Protection Agency USA announces that the CCA that contained arsenic compound since 2003 can not be used for civil buildings.
Therefore, seek the emphasis that to person poultry harmless, environmentally safe, only the poisonous new food preservative of microorganism is become current research.Discover that some timber, plant itself have certain anticorrosion, insect protected performance, this be because itself contain some tannins, terpenoid substance has toxic action to microorganism, can be used as natural antiseptic agent and be used to handle bamboo timber.Although a lot of researchs show that all plants essential oil and plant extract all have good rotproofness, its its anchorage under water-soluble condition has all received very big influence.For natural antiseptic agent is bonded in the bamboo timber preferably, just need find out a kind of technology that improves the natural antiseptic agent fixation performance.
Summary of the invention
The objective of the invention is the problem to above prior art existence, a kind of compound preservative that makes the bamboo Wooden modifying and preparation method thereof is provided, this compound preservative contains the camphortree leaf extract; Be the anticorrisive agent of natural environmental-protective, do not contain heavy metal, people and animals are not had any toxic action; The set ability of anticorrisive agent and bamboo timber is strong, and wherethrough is managed and acquisition bamboo timber, favorable anti-corrosion effect; Be difficult for running off, antiseptic effect is lasting.
For realizing the object of the invention, one aspect of the present invention provides a kind of anticorrisive agent, comprises camphortree leaf water extract solution and Lauxite.
Wherein, said camphortree leaf water extract solution according to as follows in sequence step be prepared from:
1) selects fragrant camphor tree (Cinnamomum camphora) to set the fresh leaf of March growth, put into extractor after leaf is shredded;
2) in extractor, add entry, camphortree leaf is carried out heating and extracting, extraction time is 2-3h;
3) remove by filter camphortree leaf, filtrating steams moisture, obtains camphortree leaf water extract solution.
The volume of the water that adds particularly, step 2) is 2-4 with the ratio of the weight of camphortree leaf: 1, be preferably 3: 1, i.e. and camphortree leaf weight (fresh weight) 1g, then the volume of water is 2-4ml or camphortree leaf weight (fresh weight) 1kg, then the volume of water is 2-4L.
Particularly, step 2) temperature of heating and extracting is 30-60 ℃ described in, is preferably 40 ℃.
Especially, the extractor described in the step 1) is selected Soxhlet extractor; Step 2) heating and extracting described in is that Suo Shi extracts.
Wherein, the mass percent concentration of the camphortree leaf water extract solution described in the step 3) is 5-10%, is preferably 8-10%.
Wherein, the weight portion proportioning of Lauxite and camphortree leaf water extract solution is 50-175: 825-950.
Particularly, the mass percent concentration of described Lauxite is 40-60%, and viscosity is 30-60cps.
Especially, said Lauxite is that mass percent concentration is 40-60%, and viscosity is that the dipping of 30-60cps is used Lauxite.
The present invention provides a kind of preparation method of anticorrisive agent on the other hand, comprises as follows step in sequence:
A) in camphortree leaf water extract solution, add alkali compounds, the pH value of regulating water extract is 8-10;
B) add Lauxite, then carry out the water-bath heating, stirring mixes Lauxite and camphortree leaf water extract solution, promptly gets anticorrisive agent.
Wherein, the solution of camphortree leaf water extract steps A) according to as follows in sequence step be prepared from:
1) selects fragrant camphor tree (Cinnamomum camphora) to set the fresh leaf of March growth, put into extractor after leaf is shredded;
2) in extractor, add entry, camphortree leaf is carried out heating and extracting, extraction time is 2-3h;
3) remove by filter camphortree leaf, filtrating steams moisture, obtains camphortree leaf water extract solution.
The volume of the water that adds particularly, step 2) is 2-4 with the ratio of the weight of camphortree leaf: 1, be preferably 3: 1, i.e. and camphortree leaf weight (fresh weight) 1g, then the volume of water is 2-4ml or camphortree leaf weight (fresh weight) 1kg, then the volume of water is 2-4L.
Particularly, step 2) temperature of heating and extracting is 30-60 ℃ described in, is preferably 40 ℃.
Especially, described extractor is selected Soxhlet extractor; Step 2) heating and extracting described in is that Suo Shi extracts.
Particularly, the mass percent concentration of the camphortree leaf water extract solution described in the step 3) is 5-10%, is preferably 8-10%.
Wherein, the alkali compounds steps A) is selected one or more in NaOH, potassium hydroxide, calcium hydroxide, magnesium hydroxide, the aluminium hydroxide.
The weight portion proportioning of the camphortree leaf water extract solution middle Lauxite and the steps A that adds wherein, step B)) is 50-175: 825-950.
Particularly, the mass percent concentration of said Lauxite is 40-60%; The mass percent concentration of camphortree leaf water extract solution is 5-10%; The mass percent concentration of Lauxite is 3-7% in the anticorrisive agent of preparation, is preferably 4-6%; The temperature of water-bath heating is 35-45 ℃, is preferably 40-45 ℃.
Another aspect of the invention provides a kind of processing method that makes wood/bamboo wood modification, comprises and utilizes foregoing preservatives that pending wood/bamboo wood is carried out impregnation process.
Wherein, the moisture content of pending wood/bamboo wood is 0-15%, is preferably 9-12%.
Wherein, the impregnation process process comprises two stages, and wherein, the phase I, second stage was handled under pressurized state, carrying out impregnating by pressure in order under vacuum state, to reduce pressure impregnation process
Particularly, the relative vacuum degree of phase I decompression impregnation process be-0.070～-0.1MPa, maintenance 1-2h; The absolute pressure that the second stage impregnating by pressure is handled is 0.6-1MPa, keeps 3-5h.
Especially, the relative vacuum degree of phase I decompression impregnation process be preferably-0.080～-0.095MPa; The absolute pressure that the second stage impregnating by pressure is handled is preferably 0.6-0.8MPa.
Particularly, wood/bamboo wood is placed the impregnation process jar, vacuumize earlier, import anticorrisive agent then, the impregnation process that reduces pressure is then carried out pressurized treatments, carries out impregnating by pressure and handles, make wood/bamboo wood absorb anticorrisive agent after, take out the drying of wood at last and promptly get.
Wherein, the relative vacuum degree that vacuumizes in the decompression impregnation process process be-0.070～-0.1MPa, maintenance 1-2h; The absolute pressure that the second stage impregnating by pressure is handled is 0.6-1MPa, keeps 3-5h.
Particularly, the vacuum of decompression impregnation process be preferably-0.080～-0.095MPa; The absolute pressure that impregnating by pressure is handled is preferably 0.6-0.8MPa.
In addition, also comprise with the dipping after wood/bamboo wood carry out the gas dry-cure.
Further aspect of the present invention provides a kind of anticorrosion wood/bamboo wood that is prepared from according to the method described above.
The advantage applies of the inventive method is in the following areas:
1, its average growth rate of wood/bamboo wood that utilizes wood of the present invention/bamboo wood anticorrisive agent to handle obviously improves; Because Lauxite can get into wood/bamboo wood along with camphortree leaf water extract impregnating fluid; Thereby not only can make wood/bamboo wood have good antiseptic property; And can improve the physical property of wood/bamboo wood greatly, the bending strength of the bamboo wood after the processing has improved 1%-3%.
2, wood of the present invention/bamboo wood anticorrisive agent is from the water extract of the fresh leaf of the fragrant camphor tree of plant, is natural antiseptic agent, and its natural, environmental protection does not contain heavy metal, and to people and animals' low toxicity, cost is low.
3, use Lauxite in wood of the present invention/bamboo wood anticorrisive agent; Improve the fixation performance of camphortree leaf water extract; The rate of body weight gain of the anticorrosion wood/bamboo wood of preparation on average reaches 11.03%; Show that anticorrisive agent of the present invention has anchor effect preferably in bamboo/timber, it is inner that anticorrisive agent can be bonded to bamboo/timber, improves anti-corrosive durability.
4, the antiseptic effect of the anticorrosion wood/bamboo wood of the inventive method preparation is remarkable; Decay resistance strengthens; Preventing efficiency for mould reaches 50-75%; Preventing efficiency for stain fungus reaches 25-50%, be up to state standards II level (corrosion resistant grade) standard of defined among the GB/T 13942.1-1992 " timber natural Durability Test method timber natural decay resistance laboratory test methods " of corrosion resistant ability.
5, the method for natural antiseptic agent processing bamboo timber of the present invention is simple, has fully utilized resource, has reduced environmental pollution, is beneficial to environmental protection.
The specific embodiment
Further describe the present invention below in conjunction with specific embodiment, advantage of the present invention and characteristics will be more clear along with description.But these embodiment only are exemplary, scope of the present invention are not constituted any restriction.It will be understood by those skilled in the art that and down can make amendment with form or replace without departing from the spirit and scope of the present invention, but these modifications and replacing all fall in protection scope of the present invention the details of technical scheme of the present invention.
The timber that uses in the embodiment of the invention is the poplar plate, uses bamboo wood to be mao bamboon, other timber, and like pine timber, eucalyptus timber, wood of Cunninghamia lanceolata etc., other bamboo woods all are applicable to the present invention like bamboo, cizu etc.
Embodiment 1
1, preparation camphortree leaf water extract solution
1) selects the fresh leaf of fragrant camphor tree (Cinnamomum camphora) the tree March of lasting growth, after the washing totally, put into full-automatic apparatus,Soxhlet's (FOX Co., Ltd, model SoxtexAvanti 2050) after leaf shredded;
2) in extractor, add entry; Camphortree leaf is carried out heating and extracting, and the volume of the water of adding is 3: 1 with the ratio of the weight of camphortree leaf, i.e. camphortree leaf weight (fresh weight) 1g; Then the volume of water is 3ml or camphortree leaf weight (fresh weight) 1kg; Then the volume of water is 3L, and extraction time is 2.5h, and extracting temperature is 60 ℃;
3) after mixture cools off in the device to be extracted, filter, remove camphortree leaf, obtain camphortree leaf filtrating;
4) filtrating steaming is removed moisture, makes camphortree leaf water extract solution, and wherein the mass percent concentration of camphortree leaf extract is 10% in the camphortree leaf water extract solution.
2, preparation impregnating fluid
1) in mass percent concentration is 10% camphortree leaf water extract solution, add NaOH, the pH value of regulating extract is 9;
2) adding mass percent concentration is 50%, and viscosity is the Lauxite (Tai Er chemical industry Co., Ltd) of 45cps, then carries out the water-bath heating; Stirring mixes Lauxite and camphortree leaf water extract solution; Promptly get anticorrisive agent of the present invention, wherein, Lauxite is 100: 900 with the ratio of the weight of camphortree leaf water extract solution; The mass percent concentration of Lauxite is 5% in the anticorrisive agent that makes, and water bath heating temperature is 40 ℃.
3, the modification of bamboo wood is handled
1) with life in 4 years, moisture content is 15% mao bamboon bar (160mm (length) * 20mm (wide)), places the impregnation process jar, connect vacuum equipment and pressurized equipment and (promptly start and close force (forcing) pump when vavuum pump vacuumizes; Close vavuum pump when opening force (forcing) pump);
2) the open vacuum pump vacuumizes processing, and the relative vacuum degree in the impregnation process jar is reached-0.096MPa, behind the maintenance 1h, closes vavuum pump, imports the anticorrisive agent of preparation in the step 2 simultaneously, and the relative vacuum degree in the impregnation process jar is 0MPa;
3) open force (forcing) pump, continue in impregnating autoclave, to add the anticorrisive agent of preparation in the step 2, the mao bamboon in the impregnation process jar is carried out pressurized treatments, make the absolute pressure in the process tank reach 0.8MPa, under this pressure state, keep 3h;
4) pressure relief is taken out mao bamboon bamboo bar, the residual anticorrisive agent of wipe surfaces, gas do to moisture content be 10%.
Detect the physical and mechanical property of the anticorrosion bamboo wood of preparation according to the method for GB/T 15780-1995 " Testing methods for physical and mechanical properties of bamboos ", testing result is seen table 1.
Embodiment 2
1, preparation camphortree leaf extract solution
1) selects the fresh leaf of fragrant camphor tree (Cinnamomum camphora) the tree March of lasting growth, after the washing totally, put into full-automatic apparatus,Soxhlet's after leaf shredded;
2) in extractor, add entry; Camphortree leaf is carried out heating and extracting, and the volume of the water of adding is 4: 1 with the ratio of the weight of camphortree leaf, i.e. camphortree leaf weight (fresh weight) 1g; Then the volume of water is 4ml or camphortree leaf weight (fresh weight) 1kg; Then the volume of water is 4L, and extraction time is 2h, and extracting temperature is 30 ℃;
3) after mixture cools off in the device to be extracted, filter, remove camphortree leaf, obtain camphortree leaf filtrating;
4) filtrating steaming is removed moisture, obtains camphortree leaf water extract solution, and wherein the mass percent concentration of camphortree leaf extract is 10% in the camphortree leaf water extract solution.
2, preparation impregnating fluid
1) in mass percent concentration is 10% camphortree leaf water extract solution, add KOH, the pH value of regulating extract is 8;
2) adding mass percent concentration is 40%, and viscosity is the Lauxite of 35cps, then carries out the water-bath heating; Stirring mixes Lauxite and camphortree leaf water extract solution; Promptly get anticorrisive agent of the present invention, wherein, Lauxite is 125: 875 with the ratio of the weight of camphortree leaf water extract solution; The mass percent concentration of Lauxite is 5% in the anticorrisive agent that makes, and water bath heating temperature is 35 ℃.
3, the modification of bamboo wood is handled
1) with moisture content is 5% poplar plate (300mm (rift grain direction) * 20mm (tangential) * 20mm (radially)), places the impregnation process jar, connect vacuum equipment and pressurized equipment and (promptly start and close force (forcing) pump when vavuum pump vacuumizes; Close vavuum pump when opening force (forcing) pump);
2) the open vacuum pump vacuumizes processing, and the relative vacuum degree in the impregnation process jar is reached-0.07MPa, behind the maintenance 2h, closes vavuum pump, imports the anticorrisive agent of preparation in the step 2 simultaneously, and the relative vacuum degree in the impregnation process jar is 0MPa;
3) open force (forcing) pump, continue in impregnating autoclave, to add the anticorrisive agent of preparation in the step 2, the mao bamboon in the impregnation process jar is carried out pressurized treatments, make the absolute pressure in the process tank reach 0.6MPa, under this pressure state, keep 5h;
4) pressure relief is taken out the poplar plate, the residual anticorrisive agent of wipe surfaces, gas do to moisture content be 10%.
Detect the physical and mechanical property of the preserving timber of preparation according to the method for GB/T 1936.1-2009 " Method of testing in bending strength of wood ", testing result is seen table 1.
Embodiment 3
1, preparation camphortree leaf extract solution
1) selects the fresh leaf of fragrant camphor tree (Cinnamomum camphora) the tree March of lasting growth, after the washing totally, put into full-automatic apparatus,Soxhlet's after leaf shredded;
2) in extractor, add entry; Camphortree leaf is carried out heating and extracting, and the volume of the water of adding is 2: 1 with the ratio of the weight of camphortree leaf, i.e. camphortree leaf weight (fresh weight) 1g; Then the volume of water is 2ml or camphortree leaf weight (fresh weight) 1kg; Then the volume of water is 2L, and extraction time is 3h, and extracting temperature is 40 ℃;
3) after mixture cools off in the device to be extracted, filter, remove camphortree leaf, obtain camphortree leaf filtrating;
4) the filtrating evaporating water obtains the camphortree leaf extract, and the camphortree leaf extract that is dissolved in water then makes camphortree leaf water extract solution, and wherein the mass percent concentration of camphortree leaf extract is 5% in the camphortree leaf water extract solution.
2, preparation impregnating fluid
1) in mass percent concentration is 5% camphortree leaf water extract solution, add NaOH, the pH value of regulating extract is 10;
2) adding mass percent concentration is 50%, and viscosity is the Lauxite of 45cps, then carries out the water-bath heating; Stirring mixes Lauxite and camphortree leaf water extract solution; Promptly get anticorrisive agent of the present invention, wherein, Lauxite is 60: 940 with the ratio of the weight of camphortree leaf water extract solution; The mass percent concentration of Lauxite is 3% in the anticorrisive agent that makes, and water bath heating temperature is 45 ℃.
3, the modification of bamboo wood is handled
1) with moisture content is 10% mao bamboon bar (160mm (rift grain direction) * 20mm (tangential)), places the impregnation process jar, connect vacuum equipment and pressurized equipment and (promptly start and close force (forcing) pump when vavuum pump vacuumizes; Close vavuum pump when opening force (forcing) pump);
2) the open vacuum pump vacuumizes processing, and the relative vacuum degree in the impregnation process jar is reached-0.09MPa, behind the maintenance 1.5h, closes vavuum pump, imports the anticorrisive agent of preparation in the step 2 simultaneously, and the relative vacuum degree in the impregnation process jar is 0MPa;
3) open force (forcing) pump, continue in impregnating autoclave, to add the anticorrisive agent of preparation in the step 2, the mao bamboon in the impregnation process jar is carried out pressurized treatments, make the absolute pressure in the process tank reach 0.7MPa, under this pressure state, keep 4h;
4) pressure relief is taken out the mao bamboon bar, the residual anticorrisive agent of wipe surfaces, gas do to moisture content be 10%.
Detect the physical and mechanical property of the preserving timber of preparation according to the method for GB/T 15780-1995 " Testing methods for physical and mechanical properties of bamboos ", testing result is seen table 1.
Embodiment 4
1, preparation camphortree leaf extract
1) selects the fresh leaf of fragrant camphor tree (Cinnamomum camphora) the tree March of lasting growth, after the washing totally, put into full-automatic apparatus,Soxhlet's after leaf shredded;
2) in extractor, add entry; Camphortree leaf is carried out heating and extracting, and the volume of the water of adding is 3: 1 with the ratio of the weight of camphortree leaf, i.e. camphortree leaf weight (fresh weight) 1g; Then the volume of water is 3ml or camphortree leaf weight (fresh weight) 1kg; Then the volume of water is 3L, and extraction time is 2h, and extracting temperature is 40 ℃;
3) after mixture cools off in the device to be extracted, filter, remove camphortree leaf, obtain camphortree leaf filtrating;
4) the filtrating evaporating water obtains the camphortree leaf extract, and the camphortree leaf extract that is dissolved in water then makes camphortree leaf water extract solution, and wherein the mass percent concentration of camphortree leaf extract is 8% in the camphortree leaf water extract solution.
2, preparation impregnating fluid
1) in mass percent concentration is 8% camphortree leaf water extract solution, add KOH, the pH value of regulating extract is 9;
2) adding mass percent concentration is 60%, and viscosity is the Lauxite of 60cps, then carries out the water-bath heating; Stirring mixes Lauxite and camphortree leaf water extract solution; Promptly get anticorrisive agent of the present invention, wherein, Lauxite is 116.7: 883.3 with the ratio of the weight of camphortree leaf water extract solution; The mass percent concentration of Lauxite is 7% in the anticorrisive agent that makes, and water bath heating temperature is 40 ℃.
3, the modification of timber is handled
1) with moisture content is 12% poplar plate (300mm (rift grain direction) * 20mm (tangential) * 20mm (radially)), places the impregnation process jar, connect vacuum equipment and pressurized equipment and (promptly start and close force (forcing) pump when vavuum pump vacuumizes; Close vavuum pump when opening force (forcing) pump);
2) the open vacuum pump vacuumizes processing, and the relative vacuum degree in the impregnation process jar is reached-0.08MPa, behind the maintenance 2h, closes vavuum pump, imports the anticorrisive agent of preparation in the step 2 simultaneously, and the relative vacuum degree in the impregnation process jar is 0MPa;
3) open force (forcing) pump, continue in impregnating autoclave, to add the anticorrisive agent of preparation in the step 2, the mao bamboon in the impregnation process jar is carried out pressurized treatments, make the absolute pressure in the process tank reach 0.7MPa, under this pressure state, keep 5h;
4) pressure relief is taken out the poplar plate, the residual anticorrisive agent of wipe surfaces, gas do to moisture content be 10%.
Detect the physical and mechanical property of the preserving timber of preparation according to the method for GB/T 1936.1-2009 " Method of testing in bending strength of wood ", testing result is seen table 1.
Reference examples 1
In preparation anticorrisive agent step, do not use the Lauxite, all the other are identical with embodiment 1.
Reference examples 2
In preparation anticorrisive agent step, do not use the Lauxite, all the other are identical with embodiment 2.
Reference examples 3
In preparation anticorrisive agent step, do not use the Lauxite, all the other are identical with embodiment 3.
Reference examples 4
In preparation anticorrisive agent step, do not use the Lauxite, all the other are identical with embodiment 4.
Reference examples 5
With the mao bamboon bar that uses among the embodiment 1, as reference examples 5.
Reference examples 6
With the poplar plate that uses among the embodiment 2, as reference examples 6.
Reference examples 7
With the mao bamboon bar that uses among the embodiment 3, as reference examples 7.
Reference examples 8
With the poplar plate that uses among the embodiment 4, as reference examples 8.
The mechanical property testing result of the anticorrosion wood/bamboo wood of table 1
| Bending strength (MPa) | Bending resistance elastic modelling quantity (MPa) | |
| Embodiment 1 | ?130.33 | ?10893.05 |
| Embodiment 2 | ?72.80 | ?9140.01 |
| Embodiment 3 | ?129.89 | ?10792.35 |
| Embodiment 4 | ?75.66 | ?9876.59 |
| Reference examples 1 | ?129.45 | ?10767.61 |
| Reference examples 2 | ?70.66 | ?9032.44 |
| Reference examples 3 | ?127.95 | ?10765.02 |
| Reference examples 4 | 73.99 | 9686.88 |
| Reference examples 5 | 127.34 | 10655.23 |
| Reference examples 6 | 71.65 | 9089.56 |
| Reference examples 7 | 129.04 | 10783.21 |
| Reference examples 8 | 72.21 | 9031.63 |
Result of the test shows: the mechanical property of the anticorrosion wood/bamboo wood of the present invention's preparation is strong, and bending strength has improved 1%-5%; The bending resistance elastic modelling quantity is high, and the bending resistance elastic modelling quantity has improved 1%-3% than material.
The test of Test Example 1 corrosion resistant
Carry out the corrosion resistant test with reference to standard GB/T18261-2000 " test method of mould inhibitor control timber mould and blue stain bacterium ".
Get the sample of the test specimen of embodiment 1-4, reference examples 1-4 preparation respectively, and the sample saw of embodiment 1,3, reference examples 1,3,5,7 is separated into the fritter of 50 (rift grain direction) * 20 (tangential) as the corrosion resistant experiment; Carry out the corrosion resistant experiment after the sample of embodiment 2,4, reference examples 2,4,6,8 saw separated the fritter that becomes to be of a size of 50 (rift grain direction) * 20 (tangential) * 5mm (radially, thickness direction).
To take out through the sample of testing for 4 weeks, range estimation sample bacterium infects area and blue stain degree.
The sample of inoculation mould, the inspection specimen surface degree of going mouldy; The sample of inoculation blue stain bacterium, inspection specimen surface bacterium gradient of infection simultaneously at the sample thickness center line, is rived along the rift grain direction, and inspection sample interior blue stain degree detects killed value, and calculates preventing efficiency (E is in percentage).
The sample preventing efficiency (E, %)=(1-D
1/ D
2) * 100
In the formula: D
1The average killed value of-chemicals treatment sample; D
2The average killed value of-untreated control sample.
Result of the test is as shown in table 2.
The killed value testing result of table 2 sample:
Annotate: the preventing efficiency to mould in the table 2 is represented with the average that 3 kinds of moulds are prevented and treated efficient; Preventing efficiency to the blue stain bacterium is represented with the preventing efficiency to Botryodiplodia theo-bromae.
Experimental result shows: the antiseptic effect of the anticorrosion wood/bamboo wood of the inventive method preparation is remarkable; Decay resistance strengthens; Preventing efficiency for mould reaches 50-75%; Preventing efficiency for stain fungus reaches 25-50%, the be up to state standards requirement of the II level (corrosion resistant grade) of defined among the GB/T 13942.1-1992 " timber natural Durability Test method timber natural decay resistance laboratory test methods " of the corrosion resistant ability of anticorrosion wood/bamboo wood.
Test Example 2 rate of body weight gain analytical tests
Timber to embodiment 1-4 and reference examples 1-4 processing carries out the rate of body weight gain analysis, and result of the test is seen table 3.
The rate of body weight gain of table 3 sample
Annotate: the embodiment 1,3 of weight increment test, the sample of reference examples 1,3,5,7 are of a size of 20mm (rift grain direction) * 20mm (tangential); The specimen size of embodiment 2,4, reference examples 2,4,6,8 is: 20mm (rift grain direction) * 20mm (tangential) * 10mm (radially, thickness direction)
Result of the test shows:
1, the natural antiseptic agent fixation performance of the present invention preparation is good, and using the average growth rate behind the anti-corrosion bamboo timber over dry that anticorrisive agent of the present invention prepares is 11.03%, and the average growth rate of reference examples 1-4 is 5.16%.
2, use rate of body weight gain behind the bamboo timber over dry after anticorrisive agent of the present invention is handled than only using the rate of body weight gain behind the camphortree leaf water extract processing bamboo timber over dry to double many; Show that anticorrisive agent of the present invention is anchored at the inside of bamboo timber, handle wood, the corrosion resistant of bamboo wood, fungicidal properties thereby improve.
Claims (10)
1. an anticorrisive agent is characterized in that comprising camphortree leaf water extract solution and Lauxite.
2. anticorrisive agent as claimed in claim 1, it is characterized in that said camphortree leaf water extract solution according to as follows in sequence step be prepared from:
1) the fresh leaf of the fragrant camphor tree March growth of selection is put into extractor with leaf;
2) in extractor, add entry, camphortree leaf is carried out heating and extracting, extraction time is 2-3h;
3) remove by filter camphortree leaf, filtrating steaming is removed moisture, obtains camphortree leaf water extract solution.
3. anticorrisive agent as claimed in claim 2 is characterized in that step 2) in the ratio of the water that adds and the weight of camphortree leaf be 2-4: 1.
4. according to claim 1 or claim 2 anticorrisive agent is characterized in that described Lauxite and camphortree leaf water extract are that the weight portion proportioning is 50-175: 825-950.
5. the preparation method of an anticorrisive agent comprises as follows step in sequence:
A) in camphortree leaf water extract solution, add alkali compounds, the pH value of regulating extract is 8-10;
B) add Lauxite, then carry out the water-bath heating, stirring mixes Lauxite and camphortree leaf water extract, promptly gets anticorrisive agent.
6. preparation method as claimed in claim 5 is characterized in that steps A) described in camphortree leaf water extract solution according to as follows in sequence step be prepared from:
1) the fresh leaf of the fragrant camphor tree March growth of selection is put into extractor with leaf;
2) in extractor, add entry, camphortree leaf is carried out heating and extracting, extraction time is 2-3h;
3) remove by filter camphortree leaf, filtrating steaming is removed moisture, obtains camphortree leaf water extract solution.
7. like claim 5 or 6 described preparation methods, it is characterized in that step B) described in the temperature of water-bath heating be 35-45 ℃.
8. processing method that makes wood/bamboo wood modification comprises with anticorrisive agent according to claim 1 pending wood/bamboo wood is carried out impregnation process.
9. processing method as claimed in claim 8; It is characterized in that: the moisture content of said pending wood/bamboo wood is 0-15%; The process of said impregnation process comprises two stages, and wherein the phase I vacuumizes processing under vacuum state, and second stage is carried out pressurized treatments under pressurized state.
10. an anticorrosion wood/bamboo wood is characterized in that according to being prepared from like the arbitrary said method of claim 8-9.
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Cited By (12)
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| CN104186872A (en) * | 2014-08-14 | 2014-12-10 | 华南理工大学 | Mei Pian tree leaf extraction solution, Mei Pian tree leaf and green tea beverage and preparation method of beverage |
| CN106577582A (en) * | 2016-10-12 | 2017-04-26 | 杭州市萧山区白蚁防治管理中心 | Anti-corrosion agent and method for bait wood in termite monitoring control device |
| CN106738142A (en) * | 2017-01-23 | 2017-05-31 | 安徽农业大学 | A kind of plant source antiseptic agent based on water extraction |
| CN106827133A (en) * | 2017-01-23 | 2017-06-13 | 安徽农业大学 | A kind of plant source antiseptic agent |
| CN106903766A (en) * | 2017-04-27 | 2017-06-30 | 东北林业大学 | A kind of plant base timber micro-capsule preservative, its preparation method |
| CN107088942A (en) * | 2017-04-11 | 2017-08-25 | 薛忠来 | A kind of pest-resistant mould proof processing method of timber |
| CN107217800A (en) * | 2017-07-19 | 2017-09-29 | 江苏东保装饰集团有限公司 | A kind of construction technology of wood decorations metope |
| CN108972789A (en) * | 2018-07-20 | 2018-12-11 | 西北农林科技大学 | Wood modifier and preparation method thereof and the method with modifier modification processing timber |
| CN111844308A (en) * | 2020-06-05 | 2020-10-30 | 长宁县大旗竹业有限公司 | Bamboo preservative and preparation method and application thereof |
| CN113372745A (en) * | 2021-06-22 | 2021-09-10 | 叶侨兴 | Original ecological environment-friendly building material preservative and preparation method thereof |
| CN113752347A (en) * | 2021-10-18 | 2021-12-07 | 阜南县猛发工艺品有限公司 | Preparation method of mildew-proof rattan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104186872A (en) * | 2014-08-14 | 2014-12-10 | 华南理工大学 | Mei Pian tree leaf extraction solution, Mei Pian tree leaf and green tea beverage and preparation method of beverage |
| CN106577582A (en) * | 2016-10-12 | 2017-04-26 | 杭州市萧山区白蚁防治管理中心 | Anti-corrosion agent and method for bait wood in termite monitoring control device |
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| CN107088942A (en) * | 2017-04-11 | 2017-08-25 | 薛忠来 | A kind of pest-resistant mould proof processing method of timber |
| CN106903766A (en) * | 2017-04-27 | 2017-06-30 | 东北林业大学 | A kind of plant base timber micro-capsule preservative, its preparation method |
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| CN111844308A (en) * | 2020-06-05 | 2020-10-30 | 长宁县大旗竹业有限公司 | Bamboo preservative and preparation method and application thereof |
| CN113372745A (en) * | 2021-06-22 | 2021-09-10 | 叶侨兴 | Original ecological environment-friendly building material preservative and preparation method thereof |
| CN113752347A (en) * | 2021-10-18 | 2021-12-07 | 阜南县猛发工艺品有限公司 | Preparation method of mildew-proof rattan |
| CN114131717A (en) * | 2021-12-10 | 2022-03-04 | 湖南银山竹业有限公司 | Bamboo product processing method |
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Application publication date: 20120125 |