CN115386036B - Fluorine-containing acrylic resin for woodware seal primer and preparation method thereof - Google Patents
Fluorine-containing acrylic resin for woodware seal primer and preparation method thereof Download PDFInfo
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- CN115386036B CN115386036B CN202111164904.4A CN202111164904A CN115386036B CN 115386036 B CN115386036 B CN 115386036B CN 202111164904 A CN202111164904 A CN 202111164904A CN 115386036 B CN115386036 B CN 115386036B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/22—Esters containing halogen
- C08F220/24—Esters containing halogen containing perhaloalkyl radicals
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
- C09D133/16—Homopolymers or copolymers of esters containing halogen atoms
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
Abstract
The invention relates to the field of C09/D544, in particular to fluorine-containing acrylic resin for woodenware seal primer and a preparation method thereof, wherein the preparation raw materials comprise, by weight, 1-30 parts of fluorine monomer, 15-40 parts of mixed monomer, 5-40 parts of cosolvent, 0.4-1.2 parts of initiator, 40-60 parts of water and 0.1-1 part of catalyst. Compared with the traditional water-based seal primer, the water-based seal primer has better permeability and sealing performance and anti-swelling effect.
Description
Technical Field
The invention relates to the field of C09/D544, in particular to fluorine-containing acrylic resin for woodenware seal primer and a preparation method thereof.
Background
Along with the gradual enhancement of social environmental awareness, the original wood appliance gradually replaces materials with higher pollution such as plastics, but the problems of extremely easy corrosion, insect growth and aging deformation of the woodware are caused, the special protective primer for the woodware is derived, and the existing primer has some problems according to different woodware types and use environments.
CN107903736a discloses a color-resistant water-based woodware sealing primer, which adopts substances such as aluminum ion modified polyacrylic emulsion, graphene and the like, so that the problem of color bleeding caused by water penetration into woodware is solved, however, for some composite wood boards, particularly for cork such as pine, the phenomenon of rib expansion is easy to occur.
CN108822720a discloses a water-borne wood primer and a preparation method thereof, and the water-borne acrylic ester, polyurethane acrylic ester and other auxiliary agents are adopted to inhibit the problem of rib expansion of cork such as pine, aspen and the like, but the primer is poor in waterproofness and sealing property.
It can be seen that the water-borne wood sealing primer in the prior art is difficult to achieve the effects of good water resistance, sealing performance and anti-swelling performance, so that the invention solves the problems in a targeted manner.
Disclosure of Invention
The first aspect of the invention provides a fluorine-containing acrylic resin for a woodenware seal primer, which comprises, by weight, 1-30 parts of fluorine monomer, 15-40 parts of mixed monomer, 5-40 parts of cosolvent, 0.4-1.2 parts of initiator, 40-60 parts of water and 0.1-1 part of catalyst.
Preferably, the preparation raw materials comprise 20 parts of fluoromonomer, 24 parts of mixed monomer, 10 parts of cosolvent, 1 part of initiator, 45 parts of water and 0.2 part of catalyst in parts by weight.
As a preferred embodiment, the fluoromonomer includes at least one of trifluoroethyl acrylate, hexafluorobutyl methacrylate, 2-trifluoroethyl methacrylate, dodecafluoroheptyl acrylate, dodecafluoroheptyl methacrylate.
In order to improve the waterproof effect on soft woods such as pine, fir and the like, preferably, the fluoromonomer is trifluoroethyl acrylate.
As a preferred embodiment, the mixed monomer includes at least one of styrene, butyl acrylate, acrylic acid, glycidyl methacrylate, methyl methacrylate, butyl methacrylate, isobutyl methacrylate, isooctyl methacrylate, and hydroxyethyl methacrylate.
Preferably, the mixed monomer is butyl acrylate, acrylic acid, glycidyl methacrylate, methyl methacrylate, butyl methacrylate, isobutyl methacrylate, isooctyl methacrylate, hydroxyethyl methacrylate.
Further preferably, the mixed monomers comprise, by weight, 4-9 parts of butyl acrylate, 1-2 parts of acrylic acid, 1-5 parts of glycidyl methacrylate, 1-10 parts of methyl methacrylate, 1-10 parts of butyl methacrylate, 1-10 parts of isobutyl methacrylate, 1-6 parts of isooctyl methacrylate and 1-10 parts of hydroxyethyl methacrylate.
More preferably, the mixed monomers are 4 parts of butyl acrylate, 1 part of acrylic acid, 5 parts of glycidyl methacrylate, 5 parts of methyl methacrylate, 5 parts of butyl methacrylate, 1 part of isobutyl methacrylate, 1 part of isooctyl methacrylate and 2 parts of hydroxyethyl methacrylate in parts by weight.
The applicant found that not all of the monomers for preparing the acrylic resin can prepare the seal primer for the soft wood with high quality, and the combination of the monomers in the prior art generally causes water seepage and swelling of the soft wood and yellowing phenomenon caused by tannic acid. After numerous experiments, the applicant has unexpectedly found that when the above monomers are simultaneously selected and used together with the fluoromonomer to prepare the acrylic resin, the prepared primer has the best anti-swelling property and anti-tannic acid effect, presumably because the thickness of the film layer formed by the above monomers after crosslinking is thicker than that formed by the common monomers, the crosslinking density is higher, and the affinity to the softwood is higher.
Because most of the priming paint in the prior art is water paint, the hydrophilicity is high, and water vapor in the air is easy to enter the wood surface along with the infiltrated priming paint when the priming paint is coated on the surface of the soft wood, and the inside of the priming paint is corroded and swelled. After the mixed monomer and the fluoromonomer are compounded, the drying speed of a paint film is higher than that of the prior art, water vapor can be well isolated after the surface is dried, the water vapor is prevented from entering, the dryness of the inside of cork is ensured, and the corrosion problem is solved.
As a preferred embodiment, the cosolvent includes at least one of ethylene glycol butyl ether, propylene glycol methyl ether, propylene glycol butyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether, dipropylene glycol butyl ether, tripropylene glycol methyl ether, tripropylene glycol butyl ether.
Preferably, the cosolvent is tripropylene glycol methyl ether or tripropylene glycol butyl ether.
Preferably, the weight ratio of the tripropylene glycol methyl ether to the tripropylene glycol butyl ether is (1-5): 1.
further preferably, the weight ratio of the tripropylene glycol methyl ether to the tripropylene glycol butyl etherIs 2:1.
the applicant found that when tripropylene glycol methyl ether and tripropylene glycol butyl ether are present in a weight ratio of (1-5): 1, can show the infiltration degree and the infiltration speed that improve the primer to inside the cork for the primer can penetrate into the cork material deeply, has reduced the area of contact of material and air, from inside to outside has isolated the passageway that steam got into, also from inside to outside's inhibition corruption.
As a preferred embodiment, the initiator comprises at least one of t-butyl peroxybenzoate, di-t-butyl peroxide, dibenzoyl peroxide, di-t-amyl peroxide, dicumyl peroxide, t-butyl peroxy 2-ethylhexanoate.
Preferably, the initiator is tert-butyl peroxy-2-ethylhexanoate.
The present invention is not particularly limited to catalysts, including but not limited to DMEA (N, N-dimethylethanolamine).
As a preferred embodiment, the fluorinated acrylic resin has a viscosity (25 ℃) of 2000 to 5000 Pa.s.
The second aspect of the invention provides a wood sealing primer with an anti-swelling rib, which comprises 40-60 parts by weight of fluorine-containing acrylic resin for the wood sealing primer.
As a preferred embodiment, the preparation raw materials further comprise, by weight, 0.2-2 parts of wetting agent, 0.2-5 parts of defoamer, 0.2-5 parts of thickener, 0.2-10 parts of polishing auxiliary agent, 0.2-10 parts of film forming auxiliary agent, 10-20 parts of water, 10-30 parts of pigment, 0.2-5 parts of dispersing agent, 0.2-5 parts of fluorosilicone leveling agent and 0.1-0.5 part of preservative.
Preferably, the preparation raw materials comprise 50 parts of fluorine-containing acrylic resin for woodenware seal primer, 1.2 parts of wetting agent, 2.5 parts of defoamer, 3 parts of thickener, 5 parts of polishing auxiliary agent, 3 parts of film forming auxiliary agent, 15 parts of water, 15 parts of pigment, 3 parts of dispersing agent, 2.5 parts of fluorosilicone leveling agent and 0.3 part of preservative according to parts by weight.
Wetting agents described herein include, but are not limited to, digao 4100.
Defoamers described herein include, but are not limited to, BYK024.
Thickeners described herein include, but are not limited to, BYK420.
Sanding aids described herein include, but are not limited to, zinc stearate.
The coalescents described herein include, but are not limited to, C12.
Dispersants described herein include, but are not limited to, EFKA4290.
The fluorosilicone leveling agent of the present invention includes, but is not limited to, digao 4100.
Preservatives described herein include, but are not limited to, snooz n-048.
Pigments described herein include, but are not limited to, red iron powder.
As a preferred embodiment, the preparation method of the woodware seal primer comprises the following steps: uniformly mixing the preparation raw materials in water, dispersing at high speed for 10-20 minutes, grinding uniformly by a sand mill, and discharging.
As a preferred embodiment, the fineness of the primer is 1 to 10 μm.
The third aspect of the invention provides a preparation method of fluorine-containing acrylic resin for woodware seal primer, which comprises the following steps: mixing fluoromonomer, mixed monomer and initiator to obtain mixture, dripping the mixture into cosolvent to react, maintaining the temperature, cooling, adding catalyst, maintaining the temperature at low temperature, adding water, and discharging.
As a preferred embodiment, the temperature is kept at 150-170 ℃ for 1-3h after the completion of the dripping.
As a preferred embodiment, the temperature is reduced to 85-95 ℃.
As a preferred embodiment, the low temperature is 75-85 ℃ for 1-3 hours.
As a preferred embodiment, the fluorine-containing acrylic resin has a solid content of 43 to 47% and a pH of 7 to 9.
Compared with the prior art, the invention has the following beneficial effects:
1. compared with the traditional water-based seal primer, the water-based seal primer has better permeability and sealing performance and anti-swelling effect.
2. Through the mixing of a plurality of monomers, the affinity of the primer to the soft wood can be improved, the adhesive force and the film thickness of the primer are improved, and the phenomenon of rib expansion is reduced.
3. By adding the trifluoroethyl acrylate, the waterproof effect on the soft wood is improved by synergistic effect with the mixed monomer.
4. The penetration degree and penetration speed of the primer into the cork are improved by compounding the tripropylene glycol methyl ether and the tripropylene glycol butyl ether in a weight ratio of 2:1, and the anticorrosion effect of the primer is improved.
Detailed Description
Example 1
The first aspect of the embodiment provides a fluorine-containing acrylic resin for a woodenware seal primer, which comprises, by weight, 20 parts of fluorine monomer, 24 parts of mixed monomer, 10 parts of cosolvent, 1 part of initiator, 45 parts of water and 0.2 part of catalyst.
The fluoromonomer is trifluoroethyl acrylate.
The mixed monomers comprise, by weight, 4 parts of butyl acrylate, 1 part of acrylic acid, 5 parts of glycidyl methacrylate, 5 parts of methyl methacrylate, 5 parts of butyl methacrylate, 1 part of isobutyl methacrylate, 1 part of isooctyl methacrylate and 2 parts of hydroxyethyl methacrylate.
The cosolvent is tripropylene glycol methyl ether and tripropylene glycol butyl ether which are compounded according to the weight ratio of 2:1.
The initiator is tert-butyl peroxy-2-ethyl hexanoate.
The catalyst is DMEA (N, N-dimethylethanolamine).
The viscosity (25 ℃) of the fluorine-containing acrylic resin was 3500mpa.s.
The second aspect of the embodiment provides a wood sealing primer with an anti-swelling rib, which comprises, by weight, 50 parts of fluorine-containing acrylic resin for the wood sealing primer, 1.2 parts of wetting agent, 2.5 parts of defoamer, 3 parts of thickener, 5 parts of polishing auxiliary, 3 parts of film forming auxiliary, 15 parts of water, 15 parts of pigment, 3 parts of dispersing agent, 2.5 parts of fluorosilicone leveling agent and 0.3 part of preservative.
The wetting agent was digao 4100, purchased from digao germany.
The defoamer was BYK024, purchased from pick chemistry.
The thickener is BYK420, purchased from Pick chemistry.
The polishing auxiliary agent is zinc stearate.
The film forming aid is C12, purchased from Dow chemical.
The dispersant is EFKA4290, purchased from Basoff.
The fluorosilicone leveling agent was digao 4100, purchased from digao germany.
The preservative is sno SN-048, purchased from shanghai sno chemical technology limited.
The pigment is red iron powder, and is purchased from mineral processing plants of Lingshu county Cheng Fei.
The preparation method of the woodware seal primer comprises the following steps: the preparation raw materials are evenly mixed in water, dispersed for 15 minutes at high speed, and the mixture is discharged after being ground to the fineness of 8 mu m by a sand mill.
The third aspect of the embodiment provides a preparation method of fluorine-containing acrylic resin for woodware seal primer, which comprises the following steps: mixing fluoromonomer, mixed monomer and initiator to obtain a mixture, dripping the mixture into cosolvent to react, maintaining the temperature at 160 ℃ for 2h after dripping, cooling to 90 ℃, adding catalyst, maintaining the temperature at 80 ℃ for 2h, adding water, and discharging.
The solid content of the fluorine-containing acrylic resin is 45%, and the pH value is 8.
Comparative example 1
In a first aspect, the present comparative example provides a fluorine-containing acrylic resin for a woodware primer sealer, the specific embodiment being the same as example 1, except that the fluorine monomer is trifluoroethyl acrylate.
In a second aspect, the comparative example provides a wood sealing primer with anti-swelling ribs, and the specific implementation mode is the same as that of example 1.
In a third aspect of the comparative example, a method for preparing a fluorine-containing acrylic resin for a woodware primer sealer is provided, and the specific embodiment is the same as example 1.
Comparative example 2
The first aspect of the comparative example provides a fluorine-containing acrylic resin for a woodware seal primer, and the specific embodiment is the same as example 1, except that the mixed monomer comprises 4 parts of butyl acrylate, 1 part of acrylic acid, 5 parts of glycidyl methacrylate, 1 part of isobutyl methacrylate, 1 part of isooctyl methacrylate and 2 parts of hydroxyethyl methacrylate according to parts by weight.
In a second aspect, the comparative example provides a wood sealing primer with anti-swelling ribs, and the specific implementation mode is the same as that of example 1.
In a third aspect of the comparative example, a method for preparing a fluorine-containing acrylic resin for a woodware primer sealer is provided, and the specific embodiment is the same as example 1.
Comparative example 3
The first aspect of the comparative example provides a fluorine-containing acrylic resin for a woodware seal primer, and the specific embodiment is the same as example 1, except that the mixed monomer is 5 parts by weight of glycidyl methacrylate, 5 parts by weight of methyl methacrylate, 5 parts by weight of butyl methacrylate, 1 part by weight of isobutyl methacrylate, 1 part by weight of isooctyl methacrylate, 2 parts by weight of hydroxyethyl methacrylate.
In a second aspect, the comparative example provides a wood sealing primer with anti-swelling ribs, and the specific implementation mode is the same as that of example 1.
In a third aspect of the comparative example, a method for preparing a fluorine-containing acrylic resin for a woodware primer sealer is provided, and the specific embodiment is the same as example 1.
Comparative example 4
The first aspect of the comparative example provides a fluorine-containing acrylic resin for a woodware seal primer, and the specific implementation mode is the same as the embodiment 1, wherein the cosolvent is tripropylene glycol methyl ether and tripropylene glycol butyl ether which are compounded in a weight ratio of 1:6.
In a second aspect, the comparative example provides a wood sealing primer with anti-swelling ribs, and the specific implementation mode is the same as that of example 1.
In a third aspect of the comparative example, a method for preparing a fluorine-containing acrylic resin for a woodware primer sealer is provided, and the specific embodiment is the same as example 1.
Performance testing
The examples and comparative examples were applied to the surface of a pine board to a thickness of 1mm, and after drying, the following test was conducted.
Adhesion test standard reference: GB/T9286-1998,3mm spacing, ratings were as follows:
level 0: the cutting edge is completely smooth, and no lattice falls off;
stage 1: a few flakes of the coating separate at the cut intersections, but the cross-cut area cannot be significantly affected by no more than 5%;
2 stages: the coating at the intersection of the incisions is obviously more than 5% and less than 15%;
3 stages: the coating falls off in large fragments along the cutting edge partially or totally or falls on different parts of the grid, and the falling-off area partially or totally is obviously more than 15 percent but not more than 35 percent;
4 stages: the coating falls off along the cutting edge, large fragments or some squares partially or completely fall off, which is obviously more than 35% and cannot be obviously more than 65%;
5 stages: severe flaking of greater than 4.
Pencil hardness test standard reference: GB/T6739-1996, test method.
The water resistance test method comprises the following steps: immersing in water at 60 ℃ for 48 hours, observing the surface change, and testing the adhesive force.
The dryness test method comprises the following steps: reference is made to GB/T1728-2020 for a press filter paper method based on the actual drying time.
The grindability test method comprises the following steps: the test was performed with reference to 6.4.14 in GB/T23999-2009.
The examples and comparative examples were applied to the surface of a pine board to a thickness of 1mm and, after curing, visual inspection was performed for the following index.
The filling property evaluation criteria were: the 5 level is that the pit area of the wood surface is 50-79% and the pit area of the wood surface is 100% filled, the 4 level is that the pit area of the wood surface is 80-99% filled, the 3 level is that the pit area of the wood surface is 50-79% filled, the 2 level is that the pit area of the wood surface is 11-49% filled, and the 1 level is that the pit area of the wood surface is 0-10% filled.
The evaluation criteria of the swelling resistance are as follows: the 5 grade is that the wood surface is smooth, no wood bulges, the 4 grade is that the wood surface has a little bulge, but the appearance is not obvious at 1m, the 3 grade is that the wood surface has obvious bulge, but the appearance is not obvious at 5m, the 2 grade is that the wood surface has obvious bulge, the appearance is still obvious at 5m, the 1 grade is that the wood surface is totally bulged, and the pine board cannot be used.
The tannic acid resistance evaluation criteria were: the seal primer is sprayed on a pine board, the coating thickness is 1mm, then white finish paint (commercially available) with the same thickness is sprayed, the pine board is placed for 7 days at room temperature, a Color difference Meter (model is Color Meter MAX) is used for detection, the grade 5 is that the numerical value is more than or equal to 0.1,4 and less than 0.1 and less than or equal to 0.3,3, the grade 2 is that the numerical value is more than or equal to 0.3 and less than 6, the numerical value is more than or equal to 0.6 and less than 1, and the grade 1 is that the numerical value is more than or equal to 1.
The grease proofing test method comprises the following steps: the seal primer is sprayed on a pine board, the coating thickness is 1mm, white finish paint (commercially available) with the same thickness is sprayed, the surface of the pine board is unchanged after the seal primer is placed for 7 days at room temperature, the grade 5 is visual inspection, the surface of the pine board is 4, trace grease is separated out, but the seal primer is not obvious in 1m appearance, the surface of the pine board is 3, but the seal primer is not obvious in 5m appearance, a large amount of grease is separated out on the surface of the pine board, the seal primer is still obvious in 5m appearance, the grease is completely separated out, and the pine board cannot be used.
| Adhesion force | Hardness of pencil | Water resistance | Drying (min) | |
| Example 1 | Level 0 | H | No foaming or whitening after 24 hours | 30 |
| Comparative example 1 | Level 0 | H | No foaming and whitening after 24 hours | 50 |
| Comparative example 2 | Level 0 | H | No foaming and whitening after 24 hours | 45 |
| Comparative example 3 | Level 0 | H | No foaming and whitening after 24 hours | 50 |
| Comparative example 4 | Level 0 | H | No foaming and whitening after 24 hours | 60 |
| Grindability of the polishing composition | Anti-swelling property | Tannic acid resistance | Grease resistance | |
| Example 1 | Grade 5 | Grade 5 | Grade 5 | Grade 5 |
| Comparative example 1 | Grade 4 | Grade 4 | Grade 5 | Grade 5 |
| Comparative example 2 | Grade 4 | Grade 4 | Grade 4 | Grade 4 |
| Comparative example 3 | 3 grade | 3 grade | Grade 4 | Grade 4 |
| Comparative example 4 | Grade 4 | Grade 4 | Grade 5 | Grade 5 |
Claims (7)
1. The fluorine-containing acrylic resin for the woodenware seal primer is characterized in that the preparation raw materials comprise 20 parts by weight of fluorine monomer, 24 parts by weight of mixed monomer, 10 parts by weight of cosolvent, 1 part by weight of initiator, 45 parts by weight of water and 0.2 part by weight of catalyst;
the fluoromonomer is trifluoroethyl acrylate;
the mixed monomers comprise 4 parts of butyl acrylate, 1 part of acrylic acid, 5 parts of glycidyl methacrylate, 5 parts of methyl methacrylate, 5 parts of butyl methacrylate, 1 part of isobutyl methacrylate, 1 part of isooctyl methacrylate and 2 parts of hydroxyethyl methacrylate;
the cosolvent is tripropylene glycol methyl ether and tripropylene glycol butyl ether which are compounded according to the weight ratio of 2:1.
2. A fluorine-containing acrylic resin for a woodware primer according to claim 1, wherein the initiator comprises at least one of t-butyl peroxybenzoate, di-t-butyl peroxide, dibenzoyl peroxide, di-t-amyl peroxide, dicumyl peroxide, t-butyl peroxy 2-ethylhexanoate.
3. A fluorine-containing acrylic resin for a woodware primer according to claim 1, wherein the viscosity of the fluorine-containing acrylic resin is 2000-5000mpa.s.
4. An anti-swelling wood sealing primer, which is characterized by comprising 40-60 parts by weight of the fluorine-containing acrylic resin for the wood sealing primer according to any one of claims 1-3.
5. The wood seal primer for preventing swelling according to claim 4, wherein the preparation raw materials further comprise, by weight, 0.2-2 parts of wetting agent, 0.2-5 parts of defoamer, 0.2-5 parts of thickener, 0.2-10 parts of polishing auxiliary agent, 0.2-10 parts of film forming auxiliary agent, 10-20 parts of water, 10-30 parts of pigment, 0.2-5 parts of dispersing agent, 0.2-5 parts of fluorine-silicon leveling agent and 0.1-0.5 part of preservative.
6. An anti-swelling wood sealer according to any one of claims 4 to 5 wherein the fineness of the sealer is 1 to 10 μm.
7. A process for the preparation of a fluorine-containing acrylic resin for a woodware primer according to any one of claims 1 to 3, comprising the steps of: mixing fluoromonomer, mixed monomer and initiator to obtain mixture, dripping the mixture into cosolvent to react, maintaining the temperature, cooling, adding catalyst, maintaining the temperature at low temperature, adding water, and discharging.
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