CN104893576A - Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish - Google Patents
Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish Download PDFInfo
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- CN104893576A CN104893576A CN201510314917.3A CN201510314917A CN104893576A CN 104893576 A CN104893576 A CN 104893576A CN 201510314917 A CN201510314917 A CN 201510314917A CN 104893576 A CN104893576 A CN 104893576A
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- China
- Prior art keywords
- nimbin
- shellac
- shellac varnish
- lac
- methyl alcohol
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- 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
- C09D193/00—Coating compositions based on natural resins; Coating compositions based on derivatives thereof
- C09D193/02—Shellac
-
- 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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides shellac varnish containing a biological insect-resist agent azadirachtin and a preparation method of the shellac varnish. The shellac varnish comprises the following components by mass: 0.01 to 2 percent of azadirachtin, 0.1 to 20 percent of shellac, and 78 to 99.89 percent of a solvent. The preparation method comprises the following steps: adding the shellac into the solvent, carrying out stirring till the shellac is dissolved completely, adding the azadirachtin, and carrying out stirring till the azadirachtin is dissolved completely, so as to obtain the shellac varnish. The shellac varnish has the advantages that the insect prevention effect is obvious; the safety and the compatibility are high; the insect prevention and painting functions can be well played; the film-forming property is good; the effects of water resistance, insect prevention, solvent resistance, salt prevention and the like are realized.
Description
Technical field
The present invention relates to a kind of shellac varnish containing biological insect-proof agent nimbin and preparation method thereof, belong to biological technical field of coatings.
Background technology
Lac is the one of living in secreted by the tachardia lacca on host plant is mauve natural resin, because it has excellent salt fog resistance, anti-salt marsh and oil resistant, water resistance and good cohesive force, film-forming properties, and be widely used in the industries such as military project, electronics and coating.
Shellac varnish generally adopts ethanol as solvent, and shellac varnish preparation is simple, easy to use, fast drying, and it becomes paint film adhesion good, hard smooth, transparent and have elasticity; There is not chemical action in sclerolac and timber exudate and various tinting pigment, thus shellac varnish is widely used for the removing of woodenware bottom burr for a long time, closing of timber exudate, fills up wooden pore and fixing, enclosed coloring pigment.In addition, also as the face finish of valuable wooden furniture, gun stock, musical instrument and high-grade wooden artwork etc.
In order to improve the heat-resisting water resistance of lac, people constantly have developed various modified shellac, but all do not relate to the research of insect protected effect of shellac varnish.Insect protected varnish has great importance for solid wood furniture, and in present furniture, major part does not have the characteristic of insect protected, makes furniture be destroyed in the moth erosion of insect, decreases the work-ing life of furniture.
Summary of the invention
Being difficult to play the problems such as insect protected effect for solving existing shellac varnish, the object of the present invention is to provide a kind of shellac varnish containing biological insect-proof agent nimbin and preparation method thereof, making it have the functions such as insect protected, waterproof and covering with paint concurrently.
For reaching above object, the present invention is completed by following technical proposal: a kind of shellac varnish containing biological insect-proof agent nimbin, is characterized in that being made up of the component of following masses percentage ratio:
Nimbin 0.01% ~ 2%
Lac 0.1% ~ 20%
Solvent 78% ~ 99.89%.
Described nimbin is commercial products or obtains through the following step:
(1) neem seed peeler is shelled, squeeze oil removing afterwards, obtain nim oil cake;
(2), after being pulverized by step (1) gained nim oil cake, add methyl alcohol lixiviate wherein, the mass ratio of oil cake and methyl alcohol is oil cake: methyl alcohol=1: 5 ~ 10, lixiviate 2 ~ 3 times, and collects vat liquor;
(3) concentrating under reduced pressure is carried out to step (2) gained vat liquor and reclaim methyl alcohol, concentrated condition is temperature 30 ~ 50 DEG C, pressure 80 ~ 160hPa, be concentrated into extracting liquid volume remaining 1/4 ~ 1/3 time, add isopyknic water to mix and obtain mixed solution, add isopyknic methylene dichloride with mixed solution again to extract, collect dichloromethane layer, concentrating under reduced pressure reclaims methylene dichloride, namely obtains nimbin.
Described lac is any one in seed lac, flake shellac, white shellac, modified shellac.
Described solvent is any one in methyl alcohol, dehydrated alcohol, ethyl acetate, butanols.
Another object of the present invention is to the preparation method that a kind of shellac varnish containing biological insect-proof agent nimbin is provided, through following each step:
A, to get the raw materials ready by the component of following mass percent:
Nimbin 0.01% ~ 2%
Lac 0.1% ~ 20%
Solvent 78% ~ 99.89%;
B, in the standby lac of steps A institute, add solvent and stir, until lac is all dissolved, then adding nimbin and stir, nimbin is dissolved completely, namely obtains shellac varnish.
Stirring in described step B enters to stir with the speed of 30 ~ 60 turns/min.
In varnish, add nimbin effectively to prevent and treat insect and lose the moth of furniture.Nimbin extracts the limonoid obtained from the seed of Meliaceae melia plant print chinaberry, to 200 various insects, there is biological activity, wide spectrum recognized in the world, efficient, low toxicity, easily degraded, noresidue sterilant and there is no resistance, to nearly all plant insect, indoor bedbug, flea, fly, mosquito etc., all there is repelling and killing efficacy, simultaneously to higher animal person poultry harmless, to surrounding environment without any pollution, be that current investigation and application obtains biological pesticide the most widely.The film forming characteristics of insect protected effect of nimbin and lac is combined, and development has the print chinaberry varnish of insect protected function, is applied to the surface daub on a wall of wood furniture, has certain novelty.The present invention compared with prior art has the following advantages:
1, insect protected effect is given prominence to, and traditional shellac varnish only has waterproof, anti-solvent, grease proofing function, and the insect protected print chinaberry varnish adding nimbin is provided with insect protected effect, makes the function of shellac varnish more perfect.
2, security is high, and nimbin and lac are all natural products, and nimbin generally acknowledges most important and safe biotic pesticide at present, and harmless to higher animal, the Application comparison in furniture is safe and effective.
3, compatible good, there is not chemical reaction in lac and nimbin, can not interact respective performance, and have the good solvent of some identical solvabilities, is beneficial to and plays insect protected and cover with paint, lacquer, colour wash, etc. function.Shellac varnish good film-forming property of the present invention, has the effects such as waterproof, insect protected, anti-solvent, anti-salt.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
A, to get the raw materials ready by the component of following mass percent:
Nimbin 0.01%
Seed lac 5%
Methyl alcohol 94.99%;
Wherein, nimbin is commercial products or obtains through the following step:
(1) neem seed peeler is shelled, squeeze oil removing afterwards, obtain nim oil cake;
(2), after being pulverized by step (1) gained nim oil cake, add methyl alcohol lixiviate wherein, the mass ratio of oil cake and methyl alcohol is oil cake: methyl alcohol=1: 5, lixiviate 3 times, and collects vat liquor;
(3) concentrating under reduced pressure is carried out to step (2) gained vat liquor and reclaim methyl alcohol, concentrated condition is temperature 35 DEG C, pressure 80hPa, be concentrated into extracting liquid volume remaining 1/4 time, add isopyknic water to mix and obtain mixed solution, add isopyknic methylene dichloride with mixed solution again to extract, collect dichloromethane layer, concentrating under reduced pressure reclaims methylene dichloride, namely obtains nimbin;
B, by the standby lac of steps A institute, be placed in stainless steel vessel, add solvent and stir with the speed of 30 turns/min, until lac is all dissolved, then add nimbin with the speed of 60 turns/min and stir, nimbin is dissolved completely, namely obtains shellac varnish.
Embodiment 2
A, to get the raw materials ready by the component of following mass percent:
Nimbin 0.4%
Flake shellac 20%
Dehydrated alcohol 79.6%;
Wherein, nimbin is commercial products or obtains through the following step:
(1) neem seed peeler is shelled, squeeze oil removing afterwards, obtain nim oil cake;
(2), after being pulverized by step (1) gained nim oil cake, add methyl alcohol lixiviate wherein, the mass ratio of oil cake and methyl alcohol is oil cake: methyl alcohol=1: 8, lixiviate 2 times, and collects vat liquor;
(3) concentrating under reduced pressure is carried out to step (2) gained vat liquor and reclaim methyl alcohol, concentrated condition is temperature 40 DEG C, pressure 100hPa, be concentrated into extracting liquid volume remaining 1/4 time, add isopyknic water to mix and obtain mixed solution, add isopyknic methylene dichloride with mixed solution again to extract, collect dichloromethane layer, concentrating under reduced pressure reclaims methylene dichloride, namely obtains nimbin;
B, by the standby lac of steps A institute, be placed in stainless steel vessel, add solvent and stir with the speed of 50 turns/min, until lac is all dissolved, then add nimbin with the speed of 50 turns/min and stir, nimbin is dissolved completely, namely obtains shellac varnish.
Embodiment 3
A, to get the raw materials ready by the component of following mass percent:
Nimbin 2%
White shellac 20%
Ethyl acetate 78%%;
Wherein, nimbin is commercial products or obtains through the following step:
(1) neem seed peeler is shelled, squeeze oil removing afterwards, obtain nim oil cake;
(2), after being pulverized by step (1) gained nim oil cake, add methyl alcohol lixiviate wherein, the mass ratio of oil cake and methyl alcohol is oil cake: methyl alcohol=1: 10, lixiviate 3 times, and collects vat liquor;
(3) concentrating under reduced pressure is carried out to step (2) gained vat liquor and reclaim methyl alcohol, concentrated condition is temperature 30 DEG C, pressure 160hPa, be concentrated into extracting liquid volume remaining 1/3 time, add isopyknic water to mix and obtain mixed solution, add isopyknic methylene dichloride with mixed solution again to extract, collect dichloromethane layer, concentrating under reduced pressure reclaims methylene dichloride, namely obtains nimbin;
B, by the standby lac of steps A institute, be placed in stainless steel vessel, add solvent and stir with the speed of 60 turns/min, until lac is all dissolved, then add nimbin with the speed of 30 turns/min and stir, nimbin is dissolved completely, namely obtains shellac varnish.
Embodiment 4
A, to get the raw materials ready by the component of following mass percent:
Nimbin 0.01%
Modified shellac 0.1%
Butanols 99.89%;
Wherein, nimbin is commercial products or obtains through the following step:
(1) neem seed peeler is shelled, squeeze oil removing afterwards, obtain nim oil cake;
(2), after being pulverized by step (1) gained nim oil cake, add methyl alcohol lixiviate wherein, the mass ratio of oil cake and methyl alcohol is oil cake: methyl alcohol=1: 8, lixiviate 2 times, and collects vat liquor;
(3) concentrating under reduced pressure is carried out to step (2) gained vat liquor and reclaim methyl alcohol, concentrated condition is temperature 50 C, pressure 90hPa, be concentrated into extracting liquid volume remaining 1/3 time, add isopyknic water to mix and obtain mixed solution, add isopyknic methylene dichloride with mixed solution again to extract, collect dichloromethane layer, concentrating under reduced pressure reclaims methylene dichloride, namely obtains nimbin;
B, by the standby lac of steps A institute, be placed in stainless steel vessel, add solvent and stir with the speed of 50 turns/min, until lac is all dissolved, then add nimbin with the speed of 560 turns/min and stir, nimbin is dissolved completely, namely obtains shellac varnish.
Comparative example 1: with embodiment 1, omit nimbin in raw material.
Comparative example 2: with embodiment 1, nimbin replaces with pyrethroid.
Comparative example 3: with embodiment 1, nimbin replaces with Oil of Eucalyptus.
Comparative example 4: with embodiment 1, nimbin replaces with pyrethroid and Oil of Eucalyptus equal proportion mixture.
Claims (6)
1. the shellac varnish containing biological insect-proof agent nimbin, is characterized in that being made up of the component of following masses percentage ratio:
Nimbin 0.01% ~ 2%
Lac 0.1% ~ 20%
Solvent 78% ~ 99.89%.
2. shellac varnish according to claim 1, is characterized in that: described nimbin is commercial products or obtains through the following step:
(1) neem seed peeler is shelled, squeeze oil removing afterwards, obtain nim oil cake;
(2), after being pulverized by step (1) gained nim oil cake, add methyl alcohol lixiviate wherein, the mass ratio of oil cake and methyl alcohol is oil cake: methyl alcohol=1: 5 ~ 10, lixiviate 2 ~ 3 times, and collects vat liquor;
(3) concentrating under reduced pressure is carried out to step (2) gained vat liquor and reclaim methyl alcohol, concentrated condition is temperature 30 ~ 50 DEG C, pressure 80 ~ 160hPa, be concentrated into extracting liquid volume remaining 1/4 ~ 1/3 time, add isopyknic water to mix and obtain mixed solution, add isopyknic methylene dichloride with mixed solution again to extract, collect dichloromethane layer, concentrating under reduced pressure reclaims methylene dichloride, namely obtains nimbin.
3. shellac varnish according to claim 1, is characterized in that: described lac is any one in seed lac, flake shellac, white shellac, modified shellac.
4. shellac varnish according to claim 1, is characterized in that: described solvent is any one in methyl alcohol, dehydrated alcohol, ethyl acetate, butanols.
5. a preparation method for the shellac varnish containing biological insect-proof agent nimbin, is characterized in that through following each step:
A, to get the raw materials ready by the component of following mass percent:
Nimbin 0.01% ~ 2%
Lac 0.1% ~ 20%
Solvent 78% ~ 99.89%;
B, in the standby lac of steps A institute, add solvent and stir, until lac is all dissolved, then adding nimbin and stir, nimbin is dissolved completely, namely obtains shellac varnish.
6. preparation method according to claim 5, is characterized in that: the stirring in described step B enters to stir with the speed of 30 ~ 60 turns/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314917.3A CN104893576A (en) | 2015-06-10 | 2015-06-10 | Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314917.3A CN104893576A (en) | 2015-06-10 | 2015-06-10 | Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish |
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| CN104893576A true CN104893576A (en) | 2015-09-09 |
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| CN201510314917.3A Pending CN104893576A (en) | 2015-06-10 | 2015-06-10 | Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182253A (en) * | 2016-07-27 | 2016-12-07 | 阜南县创发工艺品有限公司 | A kind of wicker products anti-flaming dope |
| EP3272822A1 (en) | 2016-07-21 | 2018-01-24 | Marco Marzagalli | Composition of varnishes for graphic arts formulated with substances used in the food sector |
| CN112521783A (en) * | 2020-11-30 | 2021-03-19 | 北部湾海洋新材料研究院 | Antifouling and anticorrosive marine coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002060693A (en) * | 2000-08-21 | 2002-02-26 | Nippe Home Products Co Ltd | Natural paint for wood |
| CN1552775A (en) * | 2003-06-06 | 2004-12-08 | 舟山格兰特种涂料有限公司 | Preparing method for insect preventing and parasite expelling paint |
| CN101747838A (en) * | 2008-12-13 | 2010-06-23 | 林杉 | Preparation method of natural transparent paint |
| CN103849312A (en) * | 2012-11-29 | 2014-06-11 | 和国荣 | Shellac for increasing heat resistance of varnish, and modification method thereof |
| CN104031073A (en) * | 2014-06-19 | 2014-09-10 | 中国林业科学研究院资源昆虫研究所 | Preparation method of azadirachtin dry powder |
-
2015
- 2015-06-10 CN CN201510314917.3A patent/CN104893576A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002060693A (en) * | 2000-08-21 | 2002-02-26 | Nippe Home Products Co Ltd | Natural paint for wood |
| CN1552775A (en) * | 2003-06-06 | 2004-12-08 | 舟山格兰特种涂料有限公司 | Preparing method for insect preventing and parasite expelling paint |
| CN101747838A (en) * | 2008-12-13 | 2010-06-23 | 林杉 | Preparation method of natural transparent paint |
| CN103849312A (en) * | 2012-11-29 | 2014-06-11 | 和国荣 | Shellac for increasing heat resistance of varnish, and modification method thereof |
| CN104031073A (en) * | 2014-06-19 | 2014-09-10 | 中国林业科学研究院资源昆虫研究所 | Preparation method of azadirachtin dry powder |
Non-Patent Citations (1)
| Title |
|---|
| 李晓升 等: "快速搅拌法室温浸提印楝油和印楝素", 《林产化学与工业》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3272822A1 (en) | 2016-07-21 | 2018-01-24 | Marco Marzagalli | Composition of varnishes for graphic arts formulated with substances used in the food sector |
| CN106182253A (en) * | 2016-07-27 | 2016-12-07 | 阜南县创发工艺品有限公司 | A kind of wicker products anti-flaming dope |
| CN112521783A (en) * | 2020-11-30 | 2021-03-19 | 北部湾海洋新材料研究院 | Antifouling and anticorrosive marine coating |
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Application publication date: 20150909 |
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