CN110587750A - Process for treating wood by using tea polyphenol preservative - Google Patents
Process for treating wood by using tea polyphenol preservative Download PDFInfo
- Publication number
- CN110587750A CN110587750A CN201810600542.0A CN201810600542A CN110587750A CN 110587750 A CN110587750 A CN 110587750A CN 201810600542 A CN201810600542 A CN 201810600542A CN 110587750 A CN110587750 A CN 110587750A
- Authority
- CN
- China
- Prior art keywords
- parts
- preservative
- tea polyphenol
- wood
- dicyandiamide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
-
- 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
- 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)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a process for treating wood by using a tea polyphenol preservative, which solves the problems that the preservative in the prior art can greatly influence the preservative performance in a humid environment and reduce the service life. The invention comprises the following substances in parts by weight: 12-14 parts of boric acid, 2-4 parts of disodium octaborate, 10-12 parts of dicyandiamide, 6-8 parts of sodium fluoride, 42-50 parts of ammonium sulfate, 2-4 parts of copper oxide, 2-5 parts of tea polyphenol and 1-3 parts of carboxymethyl cellulose. When the preservative prepared from the components in proportion is applied to wood, the purposes of inhibiting and killing indoor bacteria and expelling insects can be effectively achieved; the wood board treated by the method can emit fragrant tea smell, so that the effect of refreshing the brain is better achieved, the duration is long, and the smell volatilization time can be more than 3 years.
Description
Technical Field
The invention relates to a wood preservative treatment process, in particular to a process for treating wood by using a tea polyphenol preservative.
Background
Wood is one of the important raw materials for national construction and daily necessities of people, and is used for building materials, industrial materials and the like. Along with the improvement of living standard of people, the demand of wood is increasing. The wood is a natural organic material, has obvious biological characteristics and is easy to be invaded by organisms such as bacteria, insects, marine borers and the like. The long-term use of wood, particularly for long-term outdoor use, is greatly restricted.
Spoilage organisms cause the wood to decay, causing it to be destroyed. Before use, proper preservatives are selected according to different application environments, and appropriate treatment is carried out, so that the wood decay can be effectively delayed. Forest resources which can be harvested and used in China are very limited, and it is unrealistic to hope that a large amount of foreign exchange imported wood is used.
The wood is subjected to preservative treatment, the service life of the wood products is prolonged, and the method is one of important ways of saving the wood and protecting forest resources. At present, the wood preservatives used in various countries in the world are mainly CCA preservatives, which contain arsenic, chromium and other substances, have toxicity, are not beneficial to environmental protection, and are strictly limited in use in some countries.
And the wood is easy to warp, crack, deform, perishables, mildews and have short service life in the using process due to the anisotropy of the wood, and particularly, the wood is quick-growing, so that the defects of the wood are more serious, and the using way of the wood is limited. Therefore, many scientific research activities for functional improvement of wood have been carried out in order to improve the dimensional stability and prolong the service life of wood.
At present, the cost reasons are that: inorganic salt fire retardant is mainly used, so that moisture is easy to absorb, the fire retardant is easy to seep out to the surface of the wood, and particularly in southern areas, due to the moisture and the seepage of the fire retardant, the multiple effects of fire retardation, mildew prevention, corrosion prevention and insect prevention are difficult to achieve, so that the durability of the treated wood is reduced.
Disclosure of Invention
The invention aims to solve the problems that the preservative in the prior art can greatly influence the preservative performance in a humid environment and reduce the service life; provides a process for treating wood by using the tea polyphenol preservative to solve the problems.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a process for treating wood with tea polyphenol preservative comprises:
(1) the wood is placed in a sealed treatment tank,
(2) firstly, vacuumizing a treatment tank, wherein the relative vacuum degree is-0.1 +/-0.05 Mpa, then introducing the tea polyphenol preservative into the treatment tank, pressurizing to 5Mpa +/-0.05 Mpa for 2-3 hours, and finally, relieving the pressure and emptying the tea polyphenol preservative;
(3) repeating the step (2) for more than 2 times to obtain a dipping material;
(4) pre-drying the impregnated wood at 50 ℃, then drying in a temperature increasing mode of 10 ℃/2-3 days until the water content of the wood is 8-12%;
wherein the tea polyphenol preservative is prepared from the following raw materials in parts by weight:
12-14 parts of boric acid, 2-4 parts of disodium octaborate, 10-12 parts of dicyandiamide, 6-8 parts of sodium fluoride, 42-50 parts of ammonium sulfate, 2-4 parts of copper oxide, 2-5 parts of tea polyphenol and 1-3 parts of carboxymethyl cellulose.
When the preservative composed of the components and the proportion is applied to wood, the purposes of bacteriostasis and insect prevention can be better achieved, the service life is effectively prolonged, and the effect is more remarkable.
In addition, substances containing arsenic, chromium and the like are not adopted in the formula, so that the environment-friendly paint has no toxicity and excellent environment-friendly effect.
Meanwhile, the indoor bacteria can be effectively inhibited and killed by matching the components; the refreshing tea can also remove wood and indoor formaldehyde to play a role in purifying air, can emit faint scent tea smell, and can better achieve the effects of refreshing and restoring consciousness, the duration is long, and the smell volatilization time can be more than 3 years.
Further, the feed additive comprises the following substances in parts by weight:
13 parts of boric acid, 3 parts of disodium octaborate, 11 parts of dicyandiamide, 8 parts of sodium fluoride, 5 parts of tea polyphenol, 48 parts of ammonium sulfate, 4 parts of copper oxide and 1 part of carboxymethyl cellulose.
Further, the feed additive comprises the following substances in parts by weight:
12 parts of boric acid, 4 parts of disodium octaborate, 12 parts of dicyandiamide, 6 parts of sodium fluoride, 3 parts of tea polyphenol, 42 parts of ammonium sulfate, 2 parts of copper oxide and 3 parts of carboxymethyl cellulose.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. when the preservative prepared from the components in proportion is applied to wood, the purposes of inhibiting and killing indoor bacteria and expelling insects can be effectively achieved; the wood board treated by the method can emit fragrant tea smell, so that the refreshing effect is better achieved, the lasting time is long, and the smell volatilization time can be more than 3 years;
2. the formula of the invention does not adopt substances containing arsenic, chromium and the like, has no toxicity and has excellent environmental protection effect.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
A process for treating wood with tea polyphenol preservative comprises:
(1) the wood is placed in a sealed treatment tank,
(2) firstly, vacuumizing a treatment tank, wherein the relative vacuum degree is-0.1 +/-0.05 Mpa, then introducing the tea polyphenol preservative into the treatment tank, pressurizing to 5Mpa +/-0.05 Mpa for 2-3 hours, and finally, relieving the pressure and emptying the tea polyphenol preservative;
(3) repeating the step (2) for more than 2 times to obtain a dipping material;
(4) pre-drying the impregnated wood at 50 ℃, then drying in a temperature increasing mode of 10 ℃/2-3 days until the water content of the wood is 8-12%;
wherein the tea polyphenol preservative is prepared from the following raw materials in parts by weight:
12-14 parts of boric acid, 2-4 parts of disodium octaborate, 10-12 parts of dicyandiamide, 6-8 parts of sodium fluoride, 42-50 parts of ammonium sulfate, 2-4 parts of copper oxide, 2-5 parts of tea polyphenol and 1-3 parts of carboxymethyl cellulose.
In the embodiment, the specific ratio of the preservative is as follows:
13 parts of boric acid, 3 parts of disodium octaborate, 11 parts of dicyandiamide, 8 parts of sodium fluoride, 5 parts of tea polyphenol, 48 parts of ammonium sulfate, 4 parts of copper oxide and 1 part of carboxymethyl cellulose.
The preparation method of the preservative in the example is as follows:
(1) uniformly mixing 2-4 parts of copper oxide, 10-12 parts of dicyandiamide and 42-50 parts of ammonium sulfate, and stirring for more than 2 hours at 50-80 ℃;
(2) cooling to 30-40 ℃, adding 12-14 parts of boric acid, 2-4 parts of disodium octaborate and 6-8 parts of sodium fluoride, uniformly mixing, naturally cooling, adding 2-5 parts of tea polyphenol and 1-3 parts of carboxymethyl cellulose when the temperature is lower than 25 ℃, and uniformly mixing and stirring.
Example 2
The difference between this example and example 1 is that the mixture ratio of each substance in this example is different:
wherein, the composition comprises 12 parts of boric acid, 4 parts of disodium octaborate, 12 parts of dicyandiamide, 6 parts of sodium fluoride, 3 parts of tea polyphenol, 42 parts of ammonium sulfate, 2 parts of copper oxide and 3 parts of carboxymethyl cellulose.
The above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the scope of the present invention, but all the modifications made by the principles of the present invention and the non-inventive efforts based on the above-mentioned embodiments shall fall within the scope of the present invention.
Claims (3)
1. A process for treating wood by using a tea polyphenol preservative is characterized by comprising the following steps:
(1) the wood is placed in a sealed treatment tank,
(2) firstly, vacuumizing a treatment tank, wherein the relative vacuum degree is-0.1 +/-0.05 Mpa, then introducing the tea polyphenol preservative into the treatment tank, pressurizing to 5Mpa +/-0.05 Mpa for 2-3 hours, and finally, relieving the pressure and emptying the tea polyphenol preservative;
(3) repeating the step (2) for more than 2 times to obtain a dipping material;
(4) pre-drying the impregnated wood at 50 ℃, then drying in a temperature increasing mode of 10 ℃/2-3 days until the water content of the wood is 8-12%;
wherein the tea polyphenol preservative is prepared from the following raw materials in parts by weight:
12-14 parts of boric acid, 2-4 parts of disodium octaborate, 10-12 parts of dicyandiamide, 6-8 parts of sodium fluoride, 42-50 parts of ammonium sulfate, 2-4 parts of copper oxide, 2-5 parts of tea polyphenol and 1-3 parts of carboxymethyl cellulose.
2. The process for treating wood by using the tea polyphenol preservative as claimed in claim 1, wherein the process comprises the following substances in parts by weight:
13 parts of boric acid, 3 parts of disodium octaborate, 11 parts of dicyandiamide, 8 parts of sodium fluoride, 5 parts of tea polyphenol, 48 parts of ammonium sulfate, 4 parts of copper oxide and 1 part of carboxymethyl cellulose.
3. The process for treating wood by using the tea polyphenol preservative as claimed in claim 1, wherein the process comprises the following substances in parts by weight:
12 parts of boric acid, 4 parts of disodium octaborate, 12 parts of dicyandiamide, 6 parts of sodium fluoride, 3 parts of tea polyphenol, 42 parts of ammonium sulfate, 2 parts of copper oxide and 3 parts of carboxymethyl cellulose.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810600542.0A CN110587750A (en) | 2018-06-12 | 2018-06-12 | Process for treating wood by using tea polyphenol preservative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810600542.0A CN110587750A (en) | 2018-06-12 | 2018-06-12 | Process for treating wood by using tea polyphenol preservative |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110587750A true CN110587750A (en) | 2019-12-20 |
Family
ID=68848925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810600542.0A Withdrawn CN110587750A (en) | 2018-06-12 | 2018-06-12 | Process for treating wood by using tea polyphenol preservative |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110587750A (en) |
-
2018
- 2018-06-12 CN CN201810600542.0A patent/CN110587750A/en not_active Withdrawn
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4622248A (en) | Preservative composition for wood | |
US5185214A (en) | One step process for imparting decay resistance and fire retardancy to wood products | |
CN109227834B (en) | Preservative for southern pine outdoor wooden slip culture wall | |
FI90951C (en) | Wood preservative method and wood preservative | |
CN102990743A (en) | Wood preservative | |
EP0175771A1 (en) | Preservative composition for wood | |
CN111469244B (en) | Mildew preventive suitable for recombined bamboo and using method thereof | |
CN110587750A (en) | Process for treating wood by using tea polyphenol preservative | |
CN110587755A (en) | Wood preservative with tea polyphenol | |
CN110978184A (en) | Preservative, preparation method thereof and application of preservative in corrosion prevention of existing building wood members | |
CN106493817A (en) | A kind of wooden furniture mildew resistance insect-prevention treatment agent | |
CN110587751A (en) | Method for treating wood by adopting preservative | |
CN110587754A (en) | Preparation process of preservative for flame-retardant wood | |
EP2173526B1 (en) | Production of acidic polysilicate products and their application to strengthen wooden structures | |
CN102990737A (en) | Preservation method of solid wood | |
CN108748525B (en) | Compound copper compound preservative for pinus massoniana wood and preservative method | |
KR100553007B1 (en) | Composition for Wood Preservation | |
KR101572237B1 (en) | Composition of Copper Wood Preservative with Improved Antibiosis and Permeation | |
Yalinkilic et al. | Boron effect on decay resistance of some fire-retardant coatings applied on plywood surface | |
Hedley et al. | < Original> Evaluation of Alkylammonium Compounds for Use as Low Toxicity Wood Preservatives in Japan | |
KR100917665B1 (en) | The method of preparing anti-flame compositions for preserving wooden cultural asset | |
US3081221A (en) | Phenolic antimicrobial compositions containing a polyamine-salicylal-dehyde condensation product | |
AU747024B2 (en) | A preservative and fire retardant composition and combination and process | |
CN102990738A (en) | Preservation method of woods | |
CN102069518A (en) | Multifunctional wood mildew proof agent |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191220 |