CN107030848A - A kind of preparation method of environment protecting fiber board fungus resistant coating - Google Patents
A kind of preparation method of environment protecting fiber board fungus resistant coating Download PDFInfo
- Publication number
- CN107030848A CN107030848A CN201710428721.6A CN201710428721A CN107030848A CN 107030848 A CN107030848 A CN 107030848A CN 201710428721 A CN201710428721 A CN 201710428721A CN 107030848 A CN107030848 A CN 107030848A
- Authority
- CN
- China
- Prior art keywords
- parts
- chitosan
- resistant coating
- fungus resistant
- fiberboard
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
- B27N7/005—Coating boards, e.g. with a finishing or decorating layer
-
- 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
- C09D105/00—Coating compositions based on polysaccharides or on their derivatives, not provided for in groups C09D101/00 or C09D103/00
- C09D105/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- 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
Abstract
The invention belongs to man-made board technology field, it is related to a kind of manufacture method of environment protecting fiber board fungus resistant coating.This method will solve traditional fiberboard and easily go mouldy, and the method for using mould inhibitor and adhesive to be blended easily causes gluing Quality Down, and conventional mould inhibitor not environmentally the problem of.Manufacture method involved in the present invention comprises the following steps：Acidified chitosan solution is configured, acidified chitosan solution is brushed in fibreboard surface, heating makes acidified chitosan solution film-forming, and hot pressing makes to form fungus resistant coating.Prepared fungus resistant coating can make the anti-mold effect of fiberboard meet national standard (GB/T 18,261 2013) and infected rear 1 grade of index of discoloration by stain fungus with sample by 1 grade of index of mould and stain fungus surface infection value on sample to be provided.Product can be used for the fields such as furniture, finishing and building decoration.Such a method technique is simple, with low cost, environmental protection, is adapted to industrialization promotion.
Description
Technical field
The present invention relates to a kind of manufacture method of environment protecting fiber board fungus resistant coating, and in particular to one kind is with fiberboard table
Acidified chitosan solution Cheng Yanliu films are brushed as the method for environment protecting fiber board fungus resistant coating in face.
Background technology
In the world, today of forest tree resource increasingly scarcity, fiber board industry is developed rapidly, but general fibre plate is put
Can make moist deformation in wet environment, and be also easy to produce and go mouldy, and not only influence sheet material service life, and mould easily produces to human body
Raw adverse effect, therefore it is hot issue that fiber board industry is badly in need of solving that fiberboard is mould proof.
Mould inhibitor species on sale is many on Vehicles Collected from Market, and due to the process characteristic of fiberboard, many mould inhibitors are all in fibre
Added during the mixed glue for tieing up plate preparation technology, but mould inhibitor and adhesive are blended to the gluing effect for easily causing adhesive
Fruit declines, and influences the quality of adhesive；Meanwhile, many kinds of mould inhibitors are in itself to processor and user's body and surrounding environment
There is detrimental effect, the feature of environmental protection is poor.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention solves the problems that fiberboard easily goes mouldy, and use will be mould proof
The method that agent and adhesive are blended easily causes gluing Quality Down, and conventional mould inhibitor not environmentally the problem of, so as to carry
For a kind of to brush acidified chitosan solution Cheng Yanliu films as the method for environment protecting fiber board fungus resistant coating in fibreboard surface.
It is a kind of using fibreboard surface brush acidified chitosan solution Cheng Yanliu films as fiberboard fungus resistant coating method,
Specifically follow the steps below：
First, acidified chitosan solution is configured：60 parts~65 parts of water is weighed by mass fraction, by this 60 parts~65 parts of water
Pour into 1 part~6 parts of the chitosan newly weighed, mix to chitosan and be uniformly dispersed in water；1 part~4 are weighed again
Part glacial acetic acid, this 1 part~4 parts of glacial acetic acid is poured into 30 parts~35 parts water newly weighed, stirring is to forming homogeneous ice
Acetum；Obtained glacial acetic acid solution is poured into the water for filling chitosan again, stirring is to forming uniform acidified chitosan
Solution；
2nd, acidified chitosan is brushed：A fiberboard is chosen, the acidifying shell configured in a certain amount of step one is dipped with brush
Glycan solution is uniform in fibreboard surface brushing, and brushing amount is 300g/m2~900g/m2；
3rd, film-forming：The fiberboard for scribbling chitosan obtained in step 2 is put into baking oven, 40 DEG C~100
DEG C temperature in heating 10h~30h to chitosan film-forming；
4th, it is hot pressed into fungus resistant coating：The fiberboard rich in chitosan film of gained in step 3 is positioned in hot press
Hot pressing, hot pressing pressure is 2Mpa~5MPa, and temperature is 40 DEG C~100 DEG C, and the time is 5min~10min, and hot pressing is taken out after terminating,
Obtained product is the fibreboard product with fungus resistant coating.
The beneficial effects of the invention are as follows：First, the problem of traditional fibre plate easily goes mouldy is solved, is prepared in this way
Fibreboard surface has one layer of firm fungus resistant coating, effectively fiberboard can be avoided to go mouldy；2nd, present invention, avoiding traditional
Mould inhibitor and adhesive are blended, then the process with wood-fibred batch mixing hot pressing, but acidifying shell is brushed on stock for fibreboard
Glycan solution, all technical process are carried out on stock for fibreboard surface, and adhesive is not influenceed relatively glues effect and fiberboard
Mechanical property；3rd, the present invention makees mildew resistant paint using acidified chitosan solution, what chitosan was widely present from nature
Chitin, with excellent biological degradability and bioaffinity, therefore green pollution-free of the present invention；4th, the present invention is adopted
Environment-friendly novel fiberboard fungus resistant coating is prepared with the mode for brushing chitosan solution resolidification hot pressing, technique is simple and convenient, production
Cost is low.
Embodiment
Technical solution of the present invention be not limited to it is set forth below lift to obtain embodiment, in addition to each embodiment it
Between any combination.
Embodiment one：A kind of preparation method for environment protecting fiber board fungus resistant coating that present embodiment is described,
Specifically follow the steps below：
First, acidified chitosan solution is configured：60 parts~65 parts of water is weighed by mass fraction, by this 60 parts~65 parts of water
Pour into 1 part~6 parts of the chitosan newly weighed, mix to chitosan and be uniformly dispersed in water；1 part~4 are weighed again
Part glacial acetic acid, this 1 part~4 parts of glacial acetic acid is poured into 30 parts~35 parts water newly weighed, stirring is to forming homogeneous ice
Acetum；Obtained glacial acetic acid solution is poured into the water for filling chitosan again, stirring is to forming uniform acidified chitosan
Solution；
2nd, acidified chitosan is brushed：A fiberboard is chosen, the acidifying shell configured in a certain amount of step one is dipped with brush
Glycan solution is uniform in fibreboard surface brushing, and brushing amount is 300g/m2~900g/m2；
3rd, film-forming：The fiberboard for scribbling chitosan obtained in step 2 is put into baking oven, 40 DEG C~100
DEG C temperature in heating 10h~30h to chitosan film-forming；
4th, it is hot pressed into fungus resistant coating：The fiberboard rich in chitosan film of gained in step 3 is positioned in hot press
Hot pressing, hot pressing pressure is 2Mpa~5MPa, and temperature is 40 DEG C~100 DEG C, and the time is 5min~10min, and hot pressing is taken out after terminating,
Obtained product is the fibreboard product with fungus resistant coating.
Chitosan described in present embodiment step one, its deacetylated degree is more than or equal to 65%.Chitosan is derived from
The chitin being widely present in nature, and chitin be primarily present in arthropod, it is mollusk, annelid, primary dynamic
In thing, coelenterate, fungi, marine alga etc., if this part resource can be sufficiently used, the mankind will obtain one kind
Abundance, reproducible, environmentally friendly living resources.
The possible mould proof mechanism of this environment protecting fiber board fungus resistant coating in the present invention is：One is due to many of chitosan
Polycation, it is easy to the negatively charged group effect in fungal cell surface, so as to change the mobility of fungal cell film and penetrating
Property, make intracellular protease and other compositions leakage so that reach it is mould proof, kill mould effect；Two be to disturb answering for mould DNA
System and transcription；Three be to block the metabolism of mould bacterium.
The possibility mechanism that this environment protecting fiber board fungus resistant coating in the present invention is combined with fiberboard is：The ice of chitosan
Aqueous acetic acid viscosity is very high, and this high viscosity that chitosan solution has in itself is that it can form and is firmly tied between fiberboard
The prerequisite of conjunction；The molecular structure of chitosan is the N-ACETYL-D-GLUCOSAMINE and D- grapes connected by β (l, 4) glycosidic bond
The repetition of the dimer of osamine, therefore it is rich in hydroxyl and amino, and fibreboard surface is also enriched in hydroxyl, so in hot pressing condition
The lower mould proof layer of chitosan is easily shown in form stable Hydrogenbond with fiberboard；Free amine group is carried in chitosan molecule, in acidity
Easily into salt in solution, in cationic property, therefore under hot pressing condition, it easily forms Electrostatic Absorption with fibreboard surface.Based on this
Three kinds of possible bonding mechanisms, chitosan fungus resistant coating can be firmly combined together with fiberboard.
Embodiment two：Present embodiment from unlike embodiment one：Mass fraction is pressed in step one
First weigh 62 parts~65 parts of water, 1 part~4 parts of chitosan, then weigh 31 parts~33 parts of water and 1 part~3 parts of glacial acetic acid,
Water, chitosan and the water of this quality proportioning, glacial acetic acid and configuration sequence, can both ensure that chitosan can sufficiently be dispersed in water
In, homogeneous turbid liquid is formed, Chitosan powder is not reunited when can ensure that the glacial acetic acid solution of configuration chitosan again, easily uniform point
It is dispersed in glacial acetic acid solution, so as to ensure the excellent paint film effect of the glacial acetic acid solution of chitosan.This quality proportioning can root
It is finely adjusted according to actual conditions, so as to reach best film-formation result when brushing.Other steps and the phase of embodiment one
Together.
Embodiment three：Present embodiment from unlike embodiment one or two：Shell is acidified in step 2
The brushing amount of glycan solution is 450g/m2~750g/m2, this brushing amount can both ensure the quality of final fungus resistant coating and mould proof
Effect, can ensure that chitosan solution is not wasted again, so that it is guaranteed that the anti-mold effect being optimal with minimum chitosan solution.
Other steps are identical with embodiment one or two.
Embodiment four：Unlike one of present embodiment and embodiment one to three：Dried in step 3
The temperature of case is 60 DEG C~80 DEG C, and the heat time is 15h~25h, and this heating-up temperature can both ensure chitosan with the heat time
Glacial acetic acid solution in moisture paint film moisture content needed for step 4 heat pressing process is evaporated within the shortest time, can keep away again
Exempt from fiberboard and thermal degradation occurs for chitosan film, so as to reduce the quality of final products.Other steps and embodiment one
It is identical to one of three.
Embodiment five：Unlike one of present embodiment and embodiment one to four：In step 4
Hot pressing pressure is 3MPa~4MPa, and hot pressing temperature is 60 DEG C~80 DEG C, and hot pressing time is 7min~9min, and this hot compression parameters both may be used
To ensure to be in close contact between chitosan film and fiberboard, fully react, form powerful adhesion, can make again in chitosan film
Moisture evaporation is fallen, and finished product fungus resistant coating is maintained the moisture content similar to environment, at the same in turn ensure that fiberboard not by conquassation, no
Generation thermal degradation, it is ensured that fiberboard maintains original mechanical strength.Other steps are identical with one of embodiment one to four.
The environment protecting fiber board fungus resistant coating environmental protection prepared using the present invention, preparation technology is simple and convenient, while root
Determined according to national standard (GB/T 18261-2013) and scribble the anti-of the fiberboard of environment-friendly type fungus resistant coating made in accordance with the present invention
Mould effect, obtained result is with national standard (GB/T 18261-2013) on sample by mould and stain fungus surface infection value
It is classified and is contrasted with sample by the regulation that stain fungus infects rear discoloration classification, as shown in table 1.
Table 1：Scribble the anti-mold effect comparing result of the fiberboard of environment-friendly type fungus resistant coating
Through comparing, the anti-mold effect for scribbling the fiberboard of environment-friendly type fungus resistant coating made in accordance with the present invention meets country's mark
Accurate (GB/T 18261-2013) is infected by 1 grade of index of mould and stain fungus surface infection value on sample with sample by stain fungus
The regulation of 1 grade of index of discoloration afterwards；And the environment protecting fiber board prepared with the hot repressing of acidified chitosan solution Cheng Yanliu films
Fungus resistant coating green and healthy environmental protection, technique is simple and convenient, and preparation time is short, and production cost is also low.
Claims (5)
1. a kind of preparation method of environment protecting fiber board fungus resistant coating, it is characterised in that methods described is through the following steps that realize
's：
(1) configuration of acidified chitosan solution：60 parts~65 parts of water is weighed by mass fraction, by this 60 parts~65 parts of water
Pour into 1 part~6 parts of the chitosan newly weighed, mix to chitosan and be uniformly dispersed in water；1 part~4 are weighed again
Part glacial acetic acid, this 1 part~4 parts of glacial acetic acid is poured into 30 parts~35 parts water newly weighed, stirring is to forming homogeneous ice
Acetum；Obtained glacial acetic acid solution is poured into the water for filling chitosan again, stirring is to forming uniform acidified chitosan
Solution；
(2) brushing of acidified chitosan solution：A fiberboard is chosen, the acid of configuration in a certain amount of step (1) is dipped with brush
Change chitosan solution uniform in fibreboard surface brushing, brushing amount is 300g/m2~900g/m2；
(3) curing molding of film：The fiberboard for scribbling chitosan obtained in step (2) is put into baking oven, 40 DEG C~100
DEG C temperature in heating 10h~30h to chitosan film-forming.
(4) fungus resistant coating is hot-forming：The fiberboard rich in chitosan film of gained in step (3) is positioned in hot press
Hot pressing, hot pressing pressure is 2Mpa~5MPa, and temperature is 40 DEG C~100 DEG C, and the time is 5min~10min, and hot pressing is taken out after terminating,
Obtained product is the fibreboard product with fungus resistant coating.
2. a kind of preparation method of environment protecting fiber board fungus resistant coating according to claim 1, it is characterised in that in step (1)
62 parts~65 parts of water, 1 part~4 parts of chitosan are first weighed by mass fraction, then weighs 31 parts~33 parts of water and 1 part~3
The glacial acetic acid of part.
3. a kind of preparation method of environment protecting fiber board fungus resistant coating according to claim 1, it is characterised in that in step (2)
The brushing amount of described acidified chitosan solution is 450g/m2~750g/m2。
4. a kind of preparation method of environment protecting fiber board fungus resistant coating according to claim 1, it is characterised in that in step (3)
The temperature of described baking oven is 60 DEG C~80 DEG C, and the heat time is 15h~25h.
5. a kind of preparation method of environment protecting fiber board fungus resistant coating according to claim 1, it is characterised in that in step (4)
Described hot pressing pressure is 3MPa~4MPa, and hot pressing temperature is 60 DEG C~80 DEG C, and hot pressing time is 7min~9min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428721.6A CN107030848A (en) | 2017-06-08 | 2017-06-08 | A kind of preparation method of environment protecting fiber board fungus resistant coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428721.6A CN107030848A (en) | 2017-06-08 | 2017-06-08 | A kind of preparation method of environment protecting fiber board fungus resistant coating |
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| Publication Number | Publication Date |
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| CN107030848A true CN107030848A (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710428721.6A Pending CN107030848A (en) | 2017-06-08 | 2017-06-08 | A kind of preparation method of environment protecting fiber board fungus resistant coating |
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| CN (1) | CN107030848A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895213A (en) * | 2019-03-28 | 2019-06-18 | 江苏海美新材料有限公司 | A kind of denseness sheet material and preparation method thereof of anti-mildew attached decorating film |
| CN114474267A (en) * | 2022-02-26 | 2022-05-13 | 漳州市桥头木业有限公司 | Corrosion-resistant plywood and preparation method thereof |
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| CN103802194A (en) * | 2014-01-20 | 2014-05-21 | 老虎粉末涂料制造（太仓）有限公司 | Shaving board |
| WO2016100264A1 (en) * | 2014-12-16 | 2016-06-23 | Eastman Chemical Company | Extrusion-coated articles with end-caps |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895213A (en) * | 2019-03-28 | 2019-06-18 | 江苏海美新材料有限公司 | A kind of denseness sheet material and preparation method thereof of anti-mildew attached decorating film |
| CN109895213B (en) * | 2019-03-28 | 2020-12-04 | 江苏海美新材料有限公司 | Anti-mildew density board with decorative film and preparation method thereof |
| CN114474267A (en) * | 2022-02-26 | 2022-05-13 | 漳州市桥头木业有限公司 | Corrosion-resistant plywood and preparation method thereof |
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Application publication date: 20170811 |