CN106590917A - Preparing method and application of tung oil and applicationl - Google Patents
Preparing method and application of tung oil and applicationl Download PDFInfo
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- CN106590917A CN106590917A CN201611205200.6A CN201611205200A CN106590917A CN 106590917 A CN106590917 A CN 106590917A CN 201611205200 A CN201611205200 A CN 201611205200A CN 106590917 A CN106590917 A CN 106590917A
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- oleum verniciae
- verniciae fordii
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- mixing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
- C09D191/005—Drying oils
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention relates to a preparing method and application of tung oil. The preparing method of the tung oil comprises the steps of raw material collection, shelling treatment, jar body decoction, banburying, mixing, packaging and the like. According to the preparing method of the tung oil and the application, pure natural plant resources are fully utilized, the raw material sources are rich, the preparing technology is simple, and the cost is low. The tung oil prepared through a physical method can be widely used in base stock preparation of indoor and outdoor sculpture, architectural engineering and vine armor labor protection clothes, and lay a foundation for developing traditional sculpture products and armor labor protection clothes product.
Description
Technical field
The invention belongs to natural plants deep processing and applied technical field, and in particular to a kind of preparation method of Oleum Verniciae fordii and should
With.
Background technology
Aleurites fordii Hemsl., also known as seeds of a tung oil tree tree, euphorbia plant, are the main woody industrial oil seeds of China.Squeezed out with paulownia seed
Oleum Verniciae fordii is a kind of high-quality drying oil, is widely used in painting, prints and dyes, the field such as national defence, electrical equipment, electronics, bioenergy, is directly used
The product of Oleum Verniciae fordii production has various, and product situation of selling well is international, domestic market, has stable selling market.Simultaneously as Oleum Verniciae fordii is one
Kind excellent band dry vegetable oil, with fast drying, light specific gravity, glossiness is good, adhesive force is strong, heat-resisting, acidproof, alkaline-resisting, anti-corrosion,
The characteristic such as antirust, non-conductive, it is of many uses.It is manufacture paint, the primary raw material of ink, is used as building, machinery, soldier in a large number
Device, car and boat, fishing gear, the waterproof of electrical equipment, anti-corrosion, antirusting paint, and oilcloth, oilpaper, soap, pesticide and pharmaceutical vomiting can be made
Agent, agrochemical.With developing rapidly for China's economy, increasing to the demand of the energy, energy supply and demand contradiction increasingly shows
It is existing, it is that the energy will be the inevitable choice of China to main biomass energy as an alternative with Aleurites fordii Hemsl., China's industrial or agricultural in addition is sent out
Exhibition, the raising of living standards of the people, domestic Oleum Verniciae fordii demand will be greatly increased.
Hundred get over the national life style and customs of people's hunting type, are that beast of prey attack is resisted in hunting, make use of tree root tree to rise bark braiding
Rattan clothing, progress is evolved into the war armor and dress ornament technology is knitted in bark silk spinning afterwards, and Teng Jia and textile technology are that Bouyei ancestors hundred get over
The national contribution to Development of Human Civilization, hundred more people boil Oleum Verniciae fordii the combination of technology and rattan clothing technology, have made that " weapons are not
Enter " the war armor, not only light but also soft, even to this day, technology is still leading, create rattan first culture, its kernel is exactly hundred
More people's Oleum Verniciae fordii boils technology.In preferential policy helping conditions such as popular foundation, millions of people innovations, " national text is revived in the Chinese nation
Change develop the national economy " particular historical period, science revive lifted hundred more national Teng Jia and Oleum Verniciae fordii culture technology, expand which
Social utility's property, service society promote the well-being of mankind, to realize its social economic value.
The content of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, there is provided a kind of to be provided using pure natural plant
Source, prepares by physical means that a kind of low cost, controllability be strong, the simple Oleum Verniciae fordii of process, and the characteristics of using Oleum Verniciae fordii
As in sculpture, architectural engineering and the preparation base material application of rattan first labour protection dress ornament, specifically a kind of preparation method of Oleum Verniciae fordii
And application.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of preparation method of Oleum Verniciae fordii, the preparation
Method is comprised the following steps：
(1) material collection：The ripe paulownia son's fruit of collection, which is carried out dry in the sun under field conditions (factors) dry rear standby；
(2) peel off process：Paulownia son's fruit by dry in the sun in step (1) after dry carries out process of peeling off, and makes the young separation of shell；
(3) tank body is boiled：Paulownia seed in step (2) is added and is boiled in tank body, boil temperature control Celsius 115～125
Between degree, the time is boiled for 2～4 hours；
(4) banburying：Step (3) the middle material through boiling is added in reactor, banburying is carried out in atmospheric conditions, close
During refining and it is stirred continuously, to remove the moisture in Oleum Verniciae fordii, in internal mixing pass, temperature control is at 120～130 degrees Celsius
Between, the time is 3～5 hours；
(5) knead：Material in step (4) after banburying is added in reactor, is kneaded in atmospheric conditions,
In mixing process and it is stirred continuously, mixing time is 5～10 minutes, separates Oleum Verniciae fordii and slag, control agitating auger pump is turned
Speed control is at 800～1500 revs/min；
(6) pack：Oleum Verniciae fordii in step (5) after mixing is poured in packing jar, 20～30 hours is stood, is cooled to room
Wen Houjing packagings are obtained the Oleum Verniciae fordii.
Further, the preparation method of the Oleum Verniciae fordii, wherein during the tank body of the step (3) is boiled, which boils temperature
Degree control boils the time for 3～3.5 hours between 118～122 degrees Celsius.
Further, the preparation method of the Oleum Verniciae fordii, wherein in the step (4) internal mixing pass, its mixing temperature is controlled
Between 120～125 degrees Celsius, the time is 3～4 hours.
Further, the preparation method of the Oleum Verniciae fordii, wherein in the step (5) mixing process, mixing time is 5～7
Minute, separate Oleum Verniciae fordii and slag, control agitating auger revolution speed is controlled at 1000～1200 revs/min.
The invention also discloses the application of above-mentioned Oleum Verniciae fordii：
Oleum Verniciae fordii of the present invention is used for the mediation base material of indoor and outdoor sculpture as anti-corrosion material, by Oleum Verniciae fordii and the carving that will prepare
After the mixing of moulding material inserts bauxite powder, as the mediation base material of indoor and outdoor sculpture, antisepsises can be played.
Oleum Verniciae fordii of the present invention as anti-corrosion material as waterproof material be used for architectural engineering shrinkage joint split it is anti-water base
Material, after the Oleum Verniciae fordii for preparing is mixed with waterproof material mineral powder, as the waterproof base material that architectural engineering shrinkage joint splits, can be with
Play waterproof action.
Oleum Verniciae fordii of the present invention is used for the mediation base material of rattan first labour protection dress ornament flexible cover sheet as anti-corrosion material, passes through
After the Oleum Verniciae fordii for preparing is mixed with bauxite and mineral powder, as the mediation base material of rattan first labour protection dress ornament flexible cover sheet, can be with
Play antisepsises.
Using a kind of preparation method and application of Oleum Verniciae fordii of the present invention, compared with prior art, its advantage is：Fill
Divide using pure natural plant resource, its abundant raw material source, processing technology is simple, low cost.Using prepared by physical method
Oleum Verniciae fordii, can be widely applied in the base material preparation of indoor and outdoor sculpture, architectural engineering and rattan first labour protection dress ornament, is the traditional carving of development
Modeling product and rattan first labour protection haberdashery lay the first stone.
Specific embodiment
In order to more fully explain the enforcement of the present invention, the present invention is further illustrated below in conjunction with specific embodiment.Institute
Give an actual example and be served only for explaining the present invention, rather than limit the scope of the present invention.
Embodiment 1：
A kind of preparation method of Oleum Verniciae fordii, the preparation method are comprised the following steps：
(1) material collection：The ripe paulownia son's fruit of collection, which is carried out dry in the sun under field conditions (factors) dry rear standby；
(2) peel off process：Paulownia son's fruit by dry in the sun in step (1) after dry carries out process of peeling off, and makes the young separation of shell；
(3) tank body is boiled：Paulownia seed in step (2) is added and is boiled in tank body, boil temperature control Celsius 115～120
Between degree, the time is boiled for 3～4 hours；
(4) banburying：Step (3) the middle material through boiling is added in reactor, banburying is carried out in atmospheric conditions, close
During refining and it is stirred continuously, to remove the moisture in Oleum Verniciae fordii, in internal mixing pass, temperature control is at 120～130 degrees Celsius
Between, the time is 3～5 hours；
(5) knead：Material in step (4) after banburying is added in reactor, is kneaded in atmospheric conditions,
In mixing process and it is stirred continuously, mixing time is 8～10 minutes, separates Oleum Verniciae fordii and slag, control agitating auger pump
Rotating speed is controlled at 800～1000 revs/min；
(6) pack：Oleum Verniciae fordii in step (5) after mixing is poured in packing jar, 20～25 hours is stood, is cooled to room
Wen Houjing packagings are obtained the Oleum Verniciae fordii.
Embodiment 2：
A kind of preparation method of Oleum Verniciae fordii, the preparation method are comprised the following steps：
(1) material collection：The ripe paulownia son's fruit of collection, which is carried out dry in the sun under field conditions (factors) dry rear standby；
(2) peel off process：Paulownia son's fruit by dry in the sun in step (1) after dry carries out process of peeling off, and makes the young separation of shell；
(3) tank body is boiled：Paulownia seed in step (2) is added and is boiled in tank body, boil temperature control Celsius 118～122
Between degree, the time is boiled for 3～3.5 hours；
(4) banburying：Step (3) the middle material through boiling is added in reactor, banburying is carried out in atmospheric conditions, close
During refining and it is stirred continuously, to remove the moisture in Oleum Verniciae fordii, in internal mixing pass, temperature control is at 120～130 degrees Celsius
Between, the time is 3～5 hours；
(5) knead：Material in step (4) after banburying is added in reactor, is kneaded in atmospheric conditions,
In mixing process and it is stirred continuously, mixing time is 6～8 minutes, separates Oleum Verniciae fordii and slag, control agitating auger pump is turned
Speed control is at 1000～1200 revs/min；
(6) pack：Oleum Verniciae fordii in step (5) after mixing is poured in packing jar, 24～27 hours is stood, is cooled to room
Wen Houjing packagings are obtained the Oleum Verniciae fordii.
Embodiment 3：
A kind of preparation method of Oleum Verniciae fordii, the preparation method are comprised the following steps：
(1) material collection：The ripe paulownia son's fruit of collection, which is carried out dry in the sun under field conditions (factors) dry rear standby；
(2) peel off process：Paulownia son's fruit by dry in the sun in step (1) after dry carries out process of peeling off, and makes the young separation of shell；
(3) tank body is boiled：Paulownia seed in step (2) is added and is boiled in tank body, boil temperature control Celsius 120～125
Between degree, the time is boiled for 2～3 hours；
(4) banburying：Step (3) the middle material through boiling is added in reactor, banburying is carried out in atmospheric conditions, close
During refining and it is stirred continuously, to remove the moisture in Oleum Verniciae fordii, in internal mixing pass, temperature control is at 120～130 degrees Celsius
Between, the time is 3～5 hours；
(5) knead：Material in step (4) after banburying is added in reactor, is kneaded in atmospheric conditions,
In mixing process and it is stirred continuously, mixing time is 5～7 minutes, separates Oleum Verniciae fordii and slag, control agitating auger pump is turned
Speed control is at 1200～1500 revs/min；
(6) pack：Oleum Verniciae fordii in step (5) after mixing is poured in packing jar, 26～30 hours is stood, is cooled to room
Wen Houjing packagings are obtained the Oleum Verniciae fordii.
Embodiment 4：
According to the Oleum Verniciae fordii prepared by 1～3 either method of embodiment, it is used for the mediation base material of indoor and outdoor sculpture as anti-corrosion material,
After the Oleum Verniciae fordii for preparing is mixed with carving material inserts bauxite powder, as the mediation base material of indoor and outdoor sculpture, can be with
Play antisepsises；It is used for waterproof base material that architectural engineering shrinkage joint split as waterproof material as anti-corrosion material, by making
After standby Oleum Verniciae fordii is mixed with waterproof material mineral powder, as the waterproof base material that architectural engineering shrinkage joint splits, waterproof work can be played
With；As anti-corrosion material be used for rattan first labour protection dress ornament flexible cover sheet mediation base material, by will prepare Oleum Verniciae fordii and bauxite
And after mineral powder mixing, as the mediation base material of rattan first labour protection dress ornament flexible cover sheet, antisepsises can be played.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalence replacement or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (7)
1. a kind of preparation method of Oleum Verniciae fordii, it is characterised in that the preparation method is comprised the following steps：
(1) material collection：The ripe paulownia son's fruit of collection, which is carried out dry in the sun under field conditions (factors) dry rear standby；
(2) peel off process：Paulownia son's fruit by dry in the sun in step (1) after dry carries out process of peeling off, and makes the young separation of shell；
(3) tank body is boiled：Paulownia seed in step (2) is added and is boiled in tank body, boil temperature control Celsius 115～125
Between degree, the time is boiled for 2～4 hours；
(4) banburying：Step (3) the middle material through boiling is added in reactor, banburying is carried out in atmospheric conditions, close
During refining and it is stirred continuously, to remove the moisture in Oleum Verniciae fordii, in internal mixing pass, temperature control is at 120～130 degrees Celsius
Between, the time is 3～5 hours；
(5) knead：Material in step (4) after banburying is added in reactor, is kneaded in atmospheric conditions,
In mixing process and it is stirred continuously, mixing time is 5～10 minutes, separates Oleum Verniciae fordii and slag, control agitating auger pump is turned
Speed control is at 800～1500 revs/min；
(6) pack：Oleum Verniciae fordii in step (5) after mixing is poured in packing jar, 20～30 hours is stood, is cooled to room
Wen Houjing packagings are obtained the Oleum Verniciae fordii.
2. the preparation method of Oleum Verniciae fordii according to claim 1, it is characterised in that：The tank body of the step (3) boils process
In, which boils temperature control between 118～122 degrees Celsius, boils the time for 3～3.5 hours.
3. the preparation method of Oleum Verniciae fordii according to claim 1, it is characterised in that：In step (4) internal mixing pass, which is close
Between 120～125 degrees Celsius, the time is 3～4 hours to refining temperature control.
4. the preparation method of Oleum Verniciae fordii according to claim 1, it is characterised in that：In step (5) mixing process, stirring
Time is 5～7 minutes, separates Oleum Verniciae fordii and slag, and control agitating auger revolution speed is controlled at 1000～1200 revs/min.
5. a kind of application of Oleum Verniciae fordii preparation method as claimed in claim 1, it is characterised in that：It is used for indoor and outdoor as anti-corrosion material
The mediation base material of sculpture.
6. a kind of application of Oleum Verniciae fordii preparation method as claimed in claim 1, it is characterised in that：It is used to build work as waterproof material
The waterproof base material that journey shrinkage joint splits.
7. a kind of application of Oleum Verniciae fordii preparation method as claimed in claim 1, it is characterised in that：It is used for rattan first labor as anti-corrosion material
Protect the mediation base material of dress ornament flexible cover sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611205200.6A CN106590917A (en) | 2016-12-23 | 2016-12-23 | Preparing method and application of tung oil and applicationl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611205200.6A CN106590917A (en) | 2016-12-23 | 2016-12-23 | Preparing method and application of tung oil and applicationl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106590917A true CN106590917A (en) | 2017-04-26 |
Family
ID=58603345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611205200.6A Pending CN106590917A (en) | 2016-12-23 | 2016-12-23 | Preparing method and application of tung oil and applicationl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106590917A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459930A (en) * | 2017-10-10 | 2017-12-12 | 胡江宇 | A kind of preparation method of tung oil coating |
| CN107619641A (en) * | 2017-10-10 | 2018-01-23 | 胡江宇 | The method that microwave prepares tung oil coating |
| CN109251664A (en) * | 2018-08-02 | 2019-01-22 | 湖南林邑新能源有限公司 | A kind of environment-friendly waterproof tung oil and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749380A (en) * | 2005-09-30 | 2006-03-22 | 郧县富源油脂有限责任公司 | Refining method for tung oil |
| CN101935583A (en) * | 2010-09-10 | 2011-01-05 | 朱卫明 | High-efficiency energy-saving tung nut processing method |
| CN102977992A (en) * | 2012-12-21 | 2013-03-20 | 何学洋 | Technology for processing tung seed oil |
| CN106221281A (en) * | 2016-07-27 | 2016-12-14 | 韦罡 | A kind of natural plants Herba Acroptili repentis condensed cream and its preparation method and application |
-
2016
- 2016-12-23 CN CN201611205200.6A patent/CN106590917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749380A (en) * | 2005-09-30 | 2006-03-22 | 郧县富源油脂有限责任公司 | Refining method for tung oil |
| CN101935583A (en) * | 2010-09-10 | 2011-01-05 | 朱卫明 | High-efficiency energy-saving tung nut processing method |
| CN102977992A (en) * | 2012-12-21 | 2013-03-20 | 何学洋 | Technology for processing tung seed oil |
| CN106221281A (en) * | 2016-07-27 | 2016-12-14 | 韦罡 | A kind of natural plants Herba Acroptili repentis condensed cream and its preparation method and application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459930A (en) * | 2017-10-10 | 2017-12-12 | 胡江宇 | A kind of preparation method of tung oil coating |
| CN107619641A (en) * | 2017-10-10 | 2018-01-23 | 胡江宇 | The method that microwave prepares tung oil coating |
| CN109251664A (en) * | 2018-08-02 | 2019-01-22 | 湖南林邑新能源有限公司 | A kind of environment-friendly waterproof tung oil and preparation method thereof |
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