CN108214774A - A kind of softwood sources timber preservative and preparation method thereof - Google Patents
A kind of softwood sources timber preservative and preparation method thereof Download PDFInfo
- Publication number
- CN108214774A CN108214774A CN201810015820.6A CN201810015820A CN108214774A CN 108214774 A CN108214774 A CN 108214774A CN 201810015820 A CN201810015820 A CN 201810015820A CN 108214774 A CN108214774 A CN 108214774A
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- CN
- China
- Prior art keywords
- cork
- raw material
- timber preservative
- preparation
- softwood sources
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J5/00—Mechanical working of cork
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K7/00—Chemical or physical treatment of cork
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of softwood sources timber preservative and preparation method thereof, which is main component by the ethanol extract of cork tree cork raw material.Preparation method is as follows：Cork raw material is pulverized and sieved, is dried；The cork raw material of powdery is extracted using the ethanol solution containing alkali as solvent；After being filtered to extracting solution, filtrate is concentrated and dried to solid-like；Using distilled water as solvent, solid extract sonic oscillation is disperseed, is made into suspension, obtains timber preservative.The present invention can make full use of existing cork industrial wood waste, develop environmentally protective plant source timber preservative, have the advantages that extraction time is short, extraction efficiency is high, asepsis environment-protecting, solvent can be recycled.
Description
Technical field
The present invention relates to a kind of timber preservative and preparation method thereof, more specifically, it relates to a kind of plant source（It is soft
Wood）Timber preservative and preparation method thereof.
Background technology
Widely applied timber preservative mainly includes CCA now（Chromated copper arenate）、ACQ（Ammoniacal copper quaternary）And copper azoles etc.,
These preservatives contain the metallic elements such as copper, chromium, arsenic, have a degree of harm, therefore timber is prevented to people and animals and ecological environment
Rotten agent is to low（Nothing）Malicious direction is fast-developing, and plant source timber preservative has natural anticorrosion performance, to people and animals, environment without
Public hazards are the important directions of the research of wood preservation from now on, receive more and more attention.
Cork, also referred to as cork or cork are broad leaf tree cork oaks（Quercus variabilisB.）And quercus suber
（Quercus surberL.）Trunk, branch phellogen develop the cork parenchymal tissue to be formed, be cork tree bark
A part.Cork has natural decay resistance, this is related with the chemical composition for inhibiting wood-decaying fungus growth that it contains.Therefore will
Active chemical in cork extracts, and domestomycetes growth inhibitor, the plant source timber of split green-emitting environmental protection is made
Preservative has important research significance.
Traditional cork component extracting method is using soxhlet extraction, and the different chemical constituents of cork are carried out stage by stage
It extracts respectively, but this method is complicated for operation to be taken（It is extracted per the stage in more than 12h）, the solvent that uses（Such as dichloromethane, three
The methanol solution of chloromethanes, sodium methoxide）With toxicity.Therefore, the extracting method for developing green high-efficient has the application of cork
Significance.
Invention content
The shortcomings that the purpose of the present invention is overcoming traditional timber preservative big to environmental hazard, provides a kind of environmentally protective
Plant source timber preservative and preparation method thereof, and for cork ingredient novel green high efficiency extraction technique and cork resource it is comprehensive
It closes to develop and use and new way is provided.
It by the ethanol extract of cork tree cork raw material is main that a kind of softwood sources timber preservative of the present invention, which is,
Ingredient.Cork tree cork raw material includes cork skin and its industrial wood waste, such as cork block, cork particle.
The preparation method of timber preservative of the present invention carries out in the steps below：
1）Cork raw material is ground into 10 ~ 40 mesh sizes, it is 6% ~ 8% to be dried at 103 DEG C to moisture content；
2）Using the ethanol solution that mass concentration is 60% ~ 99.7% as solvent, and alkali is added in ethanol solution, as NaOH,
KOH, the mass fraction that alkali accounts for cork raw material are 4% ~ 15%, and the solid-liquid ratio of cork raw material and ethanol solution is 1:30~1:150（g:
ml）, cork raw material is extracted；
3）It is filtered using natural filtration or decompression and extracting solution is filtered, filter out cork solid residue；
4）Filtrate is subjected to vacuum distillation concentration, recycles ethyl alcohol, concentrate is dried in vacuo or vacuum freeze drying, is obtained
Solid extract；
5）Using distilled water as solvent, solid extract is subjected to sonic oscillation dispersion, is made into suspension, reuse dilute hydrochloric acid neutralization
PH obtains timber preservative to neutrality.
Cork raw material extracting method of the present invention includes heating water bath extraction method and ultrasonic extraction.
Heating water bath extraction method of the present invention is to be put into ethyl alcohol, alkali, cork raw material in container in proportion, is placed into
Agitating and heating 30min~120min is extracted in 50 DEG C~80 DEG C waters bath with thermostatic control.
Ultrasonic extraction of the present invention is to be put into ethyl alcohol, alkali, cork raw material in container in proportion, is placed into super
It being extracted in acoustic wave oscillator, ultrasonic frequency 25KHz, ultrasonic power is 200W~600W, and treatment temperature is 30 DEG C~80 DEG C,
Processing time is 15min~90min.
The beneficial effects of the invention are as follows：
1）Using cork as primary raw material, extract natural biological com-ponents therein and prepare environmentally protective plant source timber preservative,
Cork industrial wood waste can be made full use of, the comprehensive development and utilization for cork provides new approach；
2）The Novel extraction method of cork ingredient, has that extraction time is short, extraction efficiency is high, asepsis environment-protecting, solvent is recycled makes
The advantages of using；
3）Softwood sources preservative compared with chemical preservative, do not contain heavy metal ion, it is safe to use, dirt will not be caused to environment
Dye；
4）The present invention softwood sources timber preservative to wood-decaying fungus gloeophyllum trabeum (Gloeophyllum trabeum), color suede
Leather lid bacterium (Coriolus versicolor) there is inhibition.
Specific embodiment
The present invention is described in detail with reference to embodiment, but not limited to this.
Embodiment 1
Cork raw material is crushed, is sieved, takes the particle 5g of 10 ~ 20 mesh sizes, it is 6% to be dried at 103 DEG C to moisture content, takes matter
Measure a concentration of 99.7% ethyl alcohol 450ml, the solid-liquid ratio of cork raw material and ethanol solution is 1:90, then 0.5g is added in ethanol
The mass fraction that NaOH, NaOH account for cork raw material is 10%, and cork raw material, the ethanol solution containing NaOH are packed into round bottom together burns
Bottle, reacts 30min in magnetic agitation water-bath, and bath temperature is 70 DEG C.After the completion of reaction, using natural filtration to extracting solution
It is filtered, filters out cork solid residue, then filtrate is subjected to vacuum distillation concentration, vapo(u)rizing temperature is 30 ~ 45 DEG C, and concentrate is again
It is dry in vacuum drying chamber, finally obtain solid extract.Using distilled water as solvent, solid extract is subjected to sonic oscillation
Dispersion, is made into suspension, reuses in dilute hydrochloric acid and PH is to neutrality, obtain timber preservative.
Embodiment 2
Cork raw material is crushed, is sieved, takes the particle 5g of 20 ~ 30 mesh sizes, it is 6% to be dried at 103 DEG C to moisture content, takes matter
Measure a concentration of 99.7% ethyl alcohol 300ml, the solid-liquid ratio of cork raw material and ethanol solution is 1:60, then 0.6g is added in ethanol
The mass fraction that KOH, KOH account for cork raw material is 12%, and cork raw material, the ethanol solution containing KOH are packed into flat bottom beaker together,
60min is reacted in ultrasonic oscillator, solution treatment temperature is 60 DEG C, ultrasonic frequency 25KHz, and ultrasonic power is
200W.After the completion of reaction, filtered using decompression and extracting solution is filtered, filter out cork solid residue, then filtrate is subtracted
Distillation and concentration is pressed, vapo(u)rizing temperature is 30 ~ 45 DEG C, then concentrate is added to the distilled water of same volume, is put into refrigerator freezing 12h, freezes
After reuse freeze drier and be dried, finally obtain solid extract.Using distilled water as solvent, solid extract is carried out
Sonic oscillation disperses, and is made into suspension, reuses in dilute hydrochloric acid and PH is to neutrality, obtain timber preservative.
Embodiment 3
Cork raw material is crushed, is sieved, takes the particle 5g of 30 ~ 40 mesh sizes, it is 6% to be dried at 103 DEG C to moisture content, takes matter
Measure a concentration of 60% ethyl alcohol 150ml, the solid-liquid ratio of cork raw material and ethanol solution is 1:30, then 0.6g is added in ethanol
The mass fraction that KOH, KOH account for cork raw material is 12%, and cork raw material, the ethanol solution containing KOH are packed into round-bottomed flask together,
60min is reacted in magnetic agitation water-bath, bath temperature is 70 DEG C.After the completion of reaction, using decompression filter to extracting solution into
Row filtering, filters out cork solid residue, then filtrate is carried out vacuum distillation concentration, and vapo(u)rizing temperature is 30 ~ 45 DEG C, then by concentrate
Add the distilled water of same volume, be put into refrigerator freezing 12h, reusing freeze drier after freezing is dried, and finally obtains solid
Extract.Using distilled water as solvent, solid extract is subjected to sonic oscillation dispersion, suspension is made into, reuses in dilute hydrochloric acid
With PH to neutrality, timber preservative is obtained.
Embodiment 4
Cork raw material is crushed, is sieved, takes the particle 5g of 30 ~ 40 mesh sizes, it is 6% to be dried at 103 DEG C to moisture content, takes matter
Measure a concentration of 80% ethyl alcohol 500ml, the solid-liquid ratio of cork raw material and ethanol solution is 1:100, then 0.75g is added in ethanol
The mass fraction that NaOH, NaOH account for cork raw material is 15%, and cork raw material, the ethanol solution containing NaOH are packed into flat burning together
Cup reacts 20min in ultrasonic oscillator, and solution treatment temperature is 30 DEG C, ultrasonic frequency 25KHz, and ultrasonic power is
600W.After the completion of reaction, filtered using decompression and extracting solution is filtered, filter out cork solid residue, then filtrate is subtracted
Distillation and concentration is pressed, vapo(u)rizing temperature is 30 ~ 45 DEG C, and concentrate is dry in vacuum drying chamber again, finally obtains solid extract.With
Distilled water is solvent, and solid extract is carried out sonic oscillation dispersion, is made into suspension, reuses in dilute hydrochloric acid and PH is into
Property, obtain timber preservative.
Inhibition experiment is carried out to the growth of domestomycetes using the timber preservative of the present invention.Experiment, will using inhibition zone method
The timber preservative that above-described embodiment obtains, mixes with potato dextrose agar, is made into a concentration of 1% band poison culture medium, with
Gloeophyllum trabeum (Gloeophyllum trabeum) and Corilus versicolor Quel. (Coriolus versicolor) it is test strain, it trains
After supporting 28 days, growing state of the observation domestomycetes on band poison culture medium and is compareed with normal incubation medium.Experimental result discovery,
Domestomycetes growth diameter is in 90mm or so on normal incubation medium, and on the malicious culture medium of band, the fungus block of inoculation or it is original greatly
Small, diameter is in 5mm or so, it is seen that adding in the culture medium of cork extract has domestomycetes apparent inhibition growth.
Claims (8)
1. a kind of softwood sources timber preservative, which is characterized in that the timber preservative is extracted by the ethyl alcohol of cork tree cork raw material
Object is main component.
2. softwood sources timber preservative according to claim 1, which is characterized in that the cork tree cork of the timber preservative
Raw material includes cork skin and cork industrial wood waste.
3. softwood sources timber preservative according to claim 2, which is characterized in that the cork industrial wood waste includes cork
Particle, cork fragment.
4. a kind of preparation method for realizing softwood sources timber preservative described in claim 1, key step include：
1）Cork raw material is ground into 10 ~ 40 mesh sizes, it is 6% ~ 8% to be dried at 103 DEG C to moisture content；
2）Using the ethanol solution that mass concentration is 60% ~ 99.7% as solvent, and alkali is added in ethanol solution, alkali accounts for cork original
The mass fraction of material is 4% ~ 15%, and the solid-liquid ratio of cork raw material and ethanol solution is 1:30~1:150（g:ml）, to cork raw material
It extracts；
3）It is filtered using natural filtration or decompression and extracting solution is filtered, filter out cork solid residue；
4）Filtrate is subjected to vacuum distillation concentration, recycles ethyl alcohol, concentrate is dried in vacuo or vacuum freeze drying, is obtained
Solid extract；
5）Using distilled water as solvent, solid extract is subjected to sonic oscillation dispersion, is made into suspension, reuse dilute hydrochloric acid neutralization
PH obtains timber preservative to neutrality.
5. the preparation method of softwood sources timber preservative according to claim 4, which is characterized in that step 2）Described in alkali
For NaOH or KOH.
6. the preparation method of softwood sources timber preservative according to claim 4, which is characterized in that step 2）In to cork
The method that raw material extracts includes heating water bath extraction method and ultrasonic extraction.
7. the preparation method of softwood sources timber preservative according to claim 6, which is characterized in that the heating water bath
Extraction method is to be put into ethyl alcohol, alkali, cork raw material in container in proportion, places into agitating and heating in 50 DEG C~80 DEG C waters bath with thermostatic control
30min~120min is extracted.
8. the preparation method of softwood sources timber preservative according to claim 6, which is characterized in that the ultrasonic wave carries
It is to be put into ethyl alcohol, alkali, cork raw material in container in proportion to follow the example of, and places into ultrasonic oscillator and extracts, ultrasonic frequency
For 25KHz, ultrasonic power is 200W~600W, and treatment temperature is 30 DEG C~80 DEG C, and processing time is 15~90min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015820.6A CN108214774A (en) | 2018-01-08 | 2018-01-08 | A kind of softwood sources timber preservative and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015820.6A CN108214774A (en) | 2018-01-08 | 2018-01-08 | A kind of softwood sources timber preservative and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108214774A true CN108214774A (en) | 2018-06-29 |
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| CN201810015820.6A Pending CN108214774A (en) | 2018-01-08 | 2018-01-08 | A kind of softwood sources timber preservative and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530894A1 (en) * | 1995-08-14 | 1997-02-20 | Waidmueller Gmbh | Wood preservative contg. plant extracts |
| CN102240059A (en) * | 2011-05-16 | 2011-11-16 | 中南林业科技大学 | Method for preparing bacteriostat and application of acorn extract used as bacteriostat |
| CN106217534A (en) * | 2016-07-16 | 2016-12-14 | 西北农林科技大学 | A kind of timber preservative and preparation method thereof |
| CN106827133A (en) * | 2017-01-23 | 2017-06-13 | 安徽农业大学 | A kind of plant source antiseptic agent |
-
2018
- 2018-01-08 CN CN201810015820.6A patent/CN108214774A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530894A1 (en) * | 1995-08-14 | 1997-02-20 | Waidmueller Gmbh | Wood preservative contg. plant extracts |
| CN102240059A (en) * | 2011-05-16 | 2011-11-16 | 中南林业科技大学 | Method for preparing bacteriostat and application of acorn extract used as bacteriostat |
| CN106217534A (en) * | 2016-07-16 | 2016-12-14 | 西北农林科技大学 | A kind of timber preservative and preparation method thereof |
| CN106827133A (en) * | 2017-01-23 | 2017-06-13 | 安徽农业大学 | A kind of plant source antiseptic agent |
Non-Patent Citations (3)
| Title |
|---|
| 潘永康等: "《现代干燥技术》", 31 May 2007, 北京：化学工业出版社 * |
| 蔡津生等: "《中国食药用菌工程学》", 31 January 2015, 上海：上海科学技术文献出版社 * |
| 郑水林: "《非金属矿超细粉碎技术与装备》", 31 August 2016, 北京：中国建材工业出版社 * |
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Application publication date: 20180629 |