CN115090499A - Preparation process of baking varnish solid wood door with excellent adhesion effect - Google Patents
Preparation process of baking varnish solid wood door with excellent adhesion effect Download PDFInfo
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- CN115090499A CN115090499A CN202210728438.6A CN202210728438A CN115090499A CN 115090499 A CN115090499 A CN 115090499A CN 202210728438 A CN202210728438 A CN 202210728438A CN 115090499 A CN115090499 A CN 115090499A
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- 239000002023 wood Substances 0.000 title claims abstract description 54
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 239000002966 varnish Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 title claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 113
- 238000005507 spraying Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005498 polishing Methods 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 9
- 239000003595 mist Substances 0.000 claims abstract description 6
- 238000004018 waxing Methods 0.000 claims abstract description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 13
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 12
- 239000003377 acid catalyst Substances 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000003431 cross linking reagent Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 12
- 239000008096 xylene Substances 0.000 claims description 12
- 244000137852 Petrea volubilis Species 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- LDHQCZJRKDOVOX-UHFFFAOYSA-N 2-butenoic acid Chemical group CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 claims description 6
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 229920000180 alkyd Polymers 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000003915 air pollution Methods 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 3
- 230000001070 adhesive effect Effects 0.000 abstract description 15
- 239000000853 adhesive Substances 0.000 abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 10
- 239000010410 layer Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 3
- 238000004383 yellowing Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 24
- 238000000034 method Methods 0.000 description 6
- 230000037452 priming Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/574—Three layers or more the last layer being a clear coat at least some layers being let to dry at least partially before applying the next 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
- 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
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
-
- 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
- C09D5/002—Priming paints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2518/00—Other type of polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of wood door preparation, and discloses a preparation process of a baking varnish solid wood door with excellent adhesion effect, which comprises the following steps: s1, leveling and polishing by using putty; s2, discharging paint mist particles in the paint spray booth through a fan; s3, repeatedly spraying the primer, and polishing; s4, repeatedly spraying finish paint, and polishing; and S5, waxing and polishing. The solid wood door panel is treated by discharging paint mist particles in a paint spray booth through the putty and a fan, the primer and the finish paint are sprayed repeatedly, and each layer is polished and baked, so that the layers are tightly combined, the prepared baked solid wood door with the paint has excellent adhesive force, recoatability, water resistance, alcohol resistance and high-temperature yellowing resistance, the adhesive effect of the paint film is good under severe environments such as high temperature, water, alcohol and the like, the surface layer is not easy to generate the phenomena of bubbles, falling, bulging and the like, and the surface is easy to refresh after being damaged.
Description
Technical Field
The invention relates to the technical field of wood door preparation, in particular to a preparation process of a baking varnish solid wood door with excellent adhesion effect.
Background
The solid wood varnish-baked door adopts natural log as the door core of the door, the surface is a thick paint film, and the solid wood varnish-baked door is formed by high-temperature baking; the wood door has full appearance and color, various patterns and patterns, and is very deeply popular with people all the time, and the paint baking process can enable the original natural wood door to have the functions of various styles and characteristics, such as antique, modern, simple and the like.
Chinese patent discloses a wooden door paint baking process (publication number CN113210236A), the patent technology is through making grey sticker to panel, and through using spraying PE priming paint, finish paint and clear finish paint many times, in this in-process is baking constantly, and fully polish and level, help carrying out effective cross-linking solidification between priming paint and the finish paint, high impact strength, adopt high temperature and low temperature resistant PE priming paint and organosilicon finish paint, high and low temperature resistance is good, be difficult for receiving the temperature influence and causing the deformation that drops, simple process, but its performance is not good under water, mellow wine environment, the phenomenon that appears the bubble easily, drop, and recoat nature is relatively poor, after the paint film surface takes place to damage, be difficult for repairing.
Disclosure of Invention
The invention aims to provide a preparation process of a baking varnish solid wood door with excellent adhesion effect, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation process of a baking varnish solid wood door with excellent adhesion effect comprises the following steps:
s1, leveling the solid wood door plate by using putty to ensure that the surface is smooth and flat and no orange peel or grain is generated, and after drying, polishing the surface of the putty by using wood sand paper;
s2, filtering and dedusting outdoor air, sending the outdoor air into a paint spray booth through a fan, and enabling the air in the paint spray booth to flow from top to bottom at a speed of 0.3-0.5 m/S; the paint mist particles after paint spraying are directly discharged outdoors from the lower part of the paint spraying room without staying in the indoor air, so that the cleanliness of the indoor air is ensured during paint spraying, and the air pollution is avoided during paint spraying; the filtering and dust removing effect is more than 98 percent;
s3, repeatedly spraying primer for 3-4 times on the surface of the putty in a paint spraying room, sending the putty into a baking room after each primer is sprayed, baking the putty through circulating hot air, and polishing and grinding the putty with water sand paper after each baking;
s4, repeatedly spraying finish paint for 2-3 times on the top primer, baking the top primer paint in a baking room through circulating hot air after spraying the finish paint for each time, and polishing and grinding the top primer paint by using a grinding cloth after baking each time so as to ensure that the top primer paint has a flat and smooth surface, no particles and no abnormal feeling when touching;
and S5, cooling to normal temperature, and waxing and polishing.
As a still further scheme of the invention: the mesh number of the wood sand paper adopted in the step S1 is 120-160 meshes.
As a still further scheme of the invention: and in the step S3, the mesh number of the used water sand paper is 180-220 meshes, the baking temperature is controlled to be 55-60 ℃, the baking time is controlled to be 45-60 min, so that the solvent is partially evaporated, and the wet paint film is smooth.
As a still further scheme of the invention: the mesh number of the abrasive cloth adopted in the step S4 is 240-280 meshes, after the finish paint is sprayed for the last time, the baking temperature is gradually increased to 150-160 ℃, and the baking is continued for 25-30 min to dry the paint; no crack and no paint film falling are ensured after baking.
As a still further scheme of the invention: the primer in the step S3 comprises the following components in parts by weight: 55-60 parts of carboxyl propylene resin, 15-18 parts of a cross-linking agent, 1.2-1.5 parts of a silane coupling agent, 0.3-0.5 part of a flatting agent, 0.3-0.5 part of a defoaming agent, 0.1-0.2 part of an acid catalyst, 2-4 parts of butyl glycol ether, 4-6 parts of n-butanol and 3-5 parts of xylene; the preparation process of the primer comprises the following steps:
s31, adding 55-60 parts of carboxyl propylene resin, 15-18 parts of cross-linking agent and 0.3-0.5 part of defoaming agent into a stirring tank, adding 10-15 parts of deionized water, and stirring at 700-800 r/min to uniformly disperse the deionized water;
s32, sequentially adding 1.2-1.5 parts of silane coupling agent, 0.3-0.5 part of flatting agent, 0.1-0.2 part of acid catalyst, 2-4 parts of butyl cellosolve, 4-6 parts of n-butyl alcohol and 3-5 parts of xylene, and stirring at 1000-1200 r/min to uniformly mix;
and S33, filtering by adopting a filter screen of 180-220 meshes.
As a still further scheme of the invention: the finish paint in the step S4 comprises the following components in parts by weight: 6-8 parts of color paste, 35-40 parts of water-based acrylic modified alkyd resin, 8-10 parts of cross-linking agent, 0.6-0.8 part of silane coupling agent, 0.3-0.5 part of flatting agent, 0.08-0.1 part of acid catalyst, 0.4-0.5 part of defoaming agent, 2-3 parts of propylene glycol methyl ether acetate, 3-5 parts of n-butyl alcohol and 4-6 parts of xylene; the preparation process of the finish paint comprises the following steps:
s41, adding 6-8 parts of color paste, 35-40 parts of water-based acrylic acid modified alkyd resin, 8-10 parts of cross-linking agent and 0.4-0.5 part of defoaming agent into a stirring tank, adding 10-12 parts of deionized water, and stirring at 800-1000 r/min to uniformly disperse the mixture;
s42, sequentially adding 0.6-0.8 part of silane coupling agent, 0.3-0.5 part of flatting agent, 0.08-0.1 part of acid catalyst, 2-3 parts of propylene glycol methyl ether acetate, 3-5 parts of n-butyl alcohol and 4-6 parts of xylene, adding steel balls, and grinding and dispersing at 1200-1500 r/min;
s43, filtering with a filter screen of 240-280 meshes.
Compared with the prior art, the invention has the beneficial effects that:
the solid wood door panel is treated by discharging paint mist particles in a paint spray booth through the putty and a fan, the primer and the finish paint are sprayed repeatedly, and each layer is polished and baked, so that the layers are tightly combined, the prepared baked solid wood door with the paint has excellent adhesive force, recoatability, water resistance, alcohol resistance and high-temperature yellowing resistance, the adhesive effect of the paint film is good under severe environments such as high temperature, water, alcohol and the like, the surface layer is not easy to generate the phenomena of bubbles, falling, bulging and the like, and the surface is easy to refresh after being damaged.
Detailed Description
In the embodiment of the invention, the preparation process of the baking varnish solid wood door with excellent adhesion effect comprises the following steps:
s1, leveling the solid wood door plate by using putty to ensure that the surface is smooth and flat and no orange peel or grain is generated, and after drying, polishing the surface of the putty by using wood sand paper;
s2, filtering and dedusting outdoor air, sending the outdoor air into a paint spray booth through a fan, and enabling the air in the paint spray booth to flow from top to bottom at a speed of 0.3-0.5 m/S; the paint mist particles after paint spraying are directly discharged outdoors from the lower part of the paint spraying room without staying in the indoor air, so that the cleanliness of the indoor air is ensured during paint spraying, and the air pollution is avoided during paint spraying; the filtering and dust removing effect needs to be more than 98 percent;
s3, repeatedly spraying primer for 3-4 times on the surface of the putty in a paint spraying room, sending the putty into a baking room after each primer is sprayed, baking the putty through circulating hot air, and polishing and grinding the putty with water sand paper after each baking;
s4, repeatedly spraying finish paint for 2-3 times on the top primer, baking the top primer paint in a baking room through circulating hot air after spraying the finish paint for each time, and polishing and grinding the top primer paint by using a grinding cloth after baking each time so as to ensure that the top primer paint has a flat and smooth surface, no particles and no abnormal feeling when touching;
and S5, cooling to normal temperature, and waxing and polishing.
Preferably, the mesh number of the wood sand paper used in the step S1 is 120-160 meshes.
Preferably, the mesh number of the water sand paper adopted in the step S3 is 180-220 meshes, the baking temperature is controlled to be 55-60 ℃, the baking time is controlled to be 45-60 min, so that the solvent is partially evaporated, and the wet paint film is flat.
Preferably, the mesh number of the grinding cloth adopted in the step S4 is 240-280 meshes, after the finish paint is sprayed for the last time, the baking temperature is gradually increased to 150-160 ℃, and then the baking is continued for 25-30 min, so that the paint is dried; no crack and no paint film falling are ensured after baking.
Preferably, the primer in the step S3 is composed of the following components in parts by weight: 55-60 parts of carboxyl propylene resin, 15-18 parts of a cross-linking agent, 1.2-1.5 parts of a silane coupling agent, 0.3-0.5 part of a flatting agent, 0.3-0.5 part of a defoaming agent, 0.1-0.2 part of an acid catalyst, 2-4 parts of butyl glycol ether, 4-6 parts of n-butanol and 3-5 parts of xylene; the preparation process of the primer comprises the following steps:
s31, adding 55-60 parts of carboxyl propylene resin, 15-18 parts of cross-linking agent and 0.3-0.5 part of defoaming agent into a stirring tank, adding 10-15 parts of deionized water, and stirring at 700-800 r/min to uniformly disperse the deionized water;
s32, sequentially adding 1.2-1.5 parts of silane coupling agent, 0.3-0.5 part of flatting agent, 0.1-0.2 part of acid catalyst, 2-4 parts of butyl cellosolve, 4-6 parts of n-butyl alcohol and 3-5 parts of xylene, and stirring at 1000-1200 r/min to uniformly mix;
and S33, filtering by adopting a filter screen of 180-220 meshes.
Preferably, the finish paint in the step S4 comprises the following components in parts by weight: 6-8 parts of color paste, 35-40 parts of water-based acrylic modified alkyd resin, 8-10 parts of cross-linking agent, 0.6-0.8 part of silane coupling agent, 0.3-0.5 part of flatting agent, 0.08-0.1 part of acid catalyst, 0.4-0.5 part of defoaming agent, 2-3 parts of propylene glycol methyl ether acetate, 3-5 parts of n-butyl alcohol and 4-6 parts of xylene; the preparation process of the finish paint comprises the following steps:
s41, adding 6-8 parts of color paste, 35-40 parts of water-based acrylic acid modified alkyd resin, 8-10 parts of cross-linking agent and 0.4-0.5 part of defoaming agent into a stirring tank, adding 10-12 parts of deionized water, and stirring at 800-1000 r/min to uniformly disperse the mixture;
s42, sequentially adding 0.6-0.8 part of silane coupling agent, 0.3-0.5 part of flatting agent, 0.08-0.1 part of acid catalyst, 2-3 parts of propylene glycol methyl ether acetate, 3-5 parts of n-butyl alcohol and 4-6 parts of xylene, adding steel balls, and grinding and dispersing at 1200-1500 r/min;
s43, filtering with a filter screen of 240-280 meshes.
To better illustrate the technical effects of the present invention, the following examples are given:
the varnish-baked solid wood door prepared by the invention is taken as an example, the varnish-baked solid wood door prepared by a wood door varnish-baking process (publication number: CN113210236A, published: 2021-08-06) disclosed by a patent net is taken as a comparative example I, and the varnish-baked solid wood door prepared by a wood door varnish-baking process (publication number: CN111530719A, published: 2020-08-14) disclosed by a patent net is taken as a comparative example II;
the baked varnish solid wood doors prepared in the examples, the comparative examples I and the comparative examples II are respectively subjected to performance detection, the appearance, the adhesive force and the recoatability of the baked varnish solid wood doors are detected after the baked varnish solid wood doors are respectively boiled in boiled water for 1h at normal temperature, soaked in an ethanol solution at 25 ℃ for 5h and subjected to high temperature of 200 ℃ for 1h, and the results are recorded in the following table 1, wherein the adhesive force is divided into 6 grades, the adhesive force of the coatings is gradually reduced from 0 grade to 5 grade, the 0 grade is the best, and the 5 grade is the worst.
TABLE 1 analysis of properties of examples, comparative examples I and II
Table 1 thus gives: under the initial state at normal temperature, the baked paint wooden doors prepared in the examples, the comparative examples I and the comparative examples II are smooth and flat in appearance, the adhesive force of a paint film is 0 grade, the adhesive force is strong, and the baked paint wooden doors have excellent recoating performance.
After the wood door is boiled with boiled water for 1 hour, the appearance of the wood door with the baking varnish prepared in the example is basically unchanged, and slight bubbles and a small amount of bubbles appear in the appearance of the wood door with the baking varnish prepared in the comparative example I and the comparative example II respectively; the adhesion force of the paint film of the baked paint wooden door prepared in the embodiment is still 0 grade, and the adhesion force of the paint film of the baked paint wooden door prepared in the comparative example I and the paint film of the baked paint wooden door prepared in the comparative example II are both reduced to 2 grades; the baked wood doors prepared in the examples still had excellent repainting performance, while the repainting performance of the baked wood doors prepared in the comparative examples one and two was reduced to better and general.
After the wood door is soaked in an ethanol solution for 5 hours at 25 ℃, the appearance of the baked paint wood door prepared in the example is basically unchanged, and the appearance of the baked paint wood door prepared in the comparative example I and the baked paint wood door prepared in the comparative example II respectively has more bubbles, bubbles and separation phenomena; the adhesive force of the paint film of the baked paint wooden door prepared in the embodiment is reduced to 1 grade, and the adhesive force of the paint film of the baked paint wooden door prepared in the comparative example I and the paint film of the baked paint wooden door prepared in the comparative example II are respectively reduced to 3 grades and 4 grades; the baked paint door prepared in the example has good recoat performance, and the recoat performance of the baked paint door prepared in the comparative example I and the baked paint door prepared in the comparative example II is reduced to be poorer.
After the wood door is heated at the temperature of 200 ℃ for 1h, the appearance of the baking varnish wood door prepared in the embodiment is basically unchanged, and the appearance of the baking varnish wood door prepared in the comparative example I and the appearance of the baking varnish wood door prepared in the comparative example II are slightly yellowed and much yellowed respectively; the adhesive force of the paint film of the baked paint wooden door prepared in the embodiment is reduced to 1 grade, and the adhesive force of the paint film of the baked paint wooden door prepared in the comparative example I and the paint film of the baked paint wooden door prepared in the comparative example II are respectively reduced to 3 grades and 4 grades; the baked paint door prepared in the example has good recoat performance, and the recoat performance of the baked paint door prepared in the comparative example I and the baked paint door prepared in the comparative example II is reduced to be poorer.
Further, it can be found that: the baked varnish solid wood door prepared by the invention has excellent adhesive force, recoatability, water resistance, alcohol resistance and high-temperature yellowing resistance, the adhesive effect of a paint film is good under severe environments of high temperature, water, alcohol and the like, the surface layer is not easy to generate the phenomena of air bubbles, falling, bulging and the like, and the surface is easy to refresh after being damaged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (6)
1. The preparation process of the baking varnish solid wood door with excellent adhesion effect is characterized by comprising the following steps:
s1, leveling the solid wood door plate by using putty to ensure that the surface is smooth and flat and no orange peel or grain is generated, and after drying, polishing the surface of the putty by using wood sand paper;
s2, filtering and dedusting outdoor air, sending the air into a paint spray booth through a fan, and enabling the air in the paint spray booth to flow from top to bottom at a speed of 0.3-0.5 m/S; the paint mist particles after paint spraying are directly discharged outdoors from the lower part of the paint spraying room without staying in the indoor air, so that the cleanliness of the indoor air is ensured during paint spraying, and the air pollution is avoided during paint spraying; the filtering and dust removing effect is more than 98 percent;
s3, repeatedly spraying primer for 3-4 times on the surface of the putty in a paint spraying room, sending the putty into a baking room after each primer spraying, baking the putty through circulating hot air, and polishing and grinding the putty with water sand paper after each baking;
s4, repeatedly spraying finish paint on the top primer for 2-3 times, baking the top paint in a baking room through circulating hot air after each finish paint spraying, and polishing and grinding the top paint by using a grinding cloth after each baking so as to ensure that the surface of the top paint is flat and smooth, has no particles and has no strange feeling when touched;
and S5, cooling to normal temperature, and waxing and polishing.
2. The process for preparing a baked varnish solid wood door with excellent adhesion effect as claimed in claim 1, wherein the mesh number of the wood sand paper used in the step of S1 is 120-160 mesh.
3. The process for preparing a baked-finish solid wood door with excellent adhesion effect according to claim 1, wherein the mesh number of the waterproof abrasive paper adopted in the step S3 is 180-220 meshes, the baking temperature is controlled to be 55-60 ℃, and the baking time is controlled to be 45-60 min, so that the solvent is partially evaporated, and the wet paint film is smooth.
4. The preparation process of the baked paint solid wood door with excellent adhesion effect according to claim 1, wherein the mesh number of the abrasive cloth adopted in the step S4 is 240-280 meshes, after the final finish paint spraying, the baking temperature is gradually increased to 150-160 ℃, and then the baking is continued for 25-30 min, so that the paint is dried; no crack and no paint film falling are ensured after baking.
5. The process for preparing a baked varnish solid wood door with excellent adhesion effect according to claim 1, wherein the primer in the step S3 comprises the following components in parts by weight: 55-60 parts of carboxyl propylene resin, 15-18 parts of a cross-linking agent, 1.2-1.5 parts of a silane coupling agent, 0.3-0.5 part of a flatting agent, 0.3-0.5 part of a defoaming agent, 0.1-0.2 part of an acid catalyst, 2-4 parts of butyl glycol ether, 4-6 parts of n-butyl alcohol and 3-5 parts of xylene; the preparation process of the primer comprises the following steps:
s31, adding 55-60 parts of carboxyl propylene resin, 15-18 parts of cross-linking agent and 0.3-0.5 part of defoaming agent into a stirring tank, adding 10-15 parts of deionized water, and stirring at 700-800 r/min to uniformly disperse the deionized water;
s32, sequentially adding 1.2-1.5 parts of silane coupling agent, 0.3-0.5 part of flatting agent, 0.1-0.2 part of acid catalyst, 2-4 parts of butyl cellosolve, 4-6 parts of n-butyl alcohol and 3-5 parts of xylene, and stirring at 1000-1200 r/min to uniformly mix;
and S33, filtering by adopting a filter screen of 180-220 meshes.
6. The preparation process of the baking varnish solid wood door with excellent adhesion effect according to claim 1, wherein the finish paint in the step S4 comprises the following components in parts by weight: 6-8 parts of color paste, 35-40 parts of water-based acrylic modified alkyd resin, 8-10 parts of cross-linking agent, 0.6-0.8 part of silane coupling agent, 0.3-0.5 part of flatting agent, 0.08-0.1 part of acid catalyst, 0.4-0.5 part of defoaming agent, 2-3 parts of propylene glycol methyl ether acetate, 3-5 parts of n-butyl alcohol and 4-6 parts of xylene; the preparation process of the finish paint comprises the following steps:
s41, adding 6-8 parts of color paste, 35-40 parts of water-based acrylic acid modified alkyd resin, 8-10 parts of cross-linking agent and 0.4-0.5 part of defoaming agent into a stirring tank, adding 10-12 parts of deionized water, and stirring at 800-1000 r/min to uniformly disperse the mixture;
s42, sequentially adding 0.6-0.8 part of silane coupling agent, 0.3-0.5 part of flatting agent, 0.08-0.1 part of acid catalyst, 2-3 parts of propylene glycol methyl ether acetate, 3-5 parts of n-butyl alcohol and 4-6 parts of xylene, adding steel balls, and grinding and dispersing at 1200-1500 r/min;
s43, filtering with a filter screen of 240-280 meshes.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1176929A (en) * | 1997-09-09 | 1999-03-23 | Nippon Paint Co Ltd | Coating of wood and coated wood |
| CN101831225A (en) * | 2010-04-15 | 2010-09-15 | 林玉财 | Low-carbon environmental-friendly aqueous wood lacquer with double components |
| CN103275577A (en) * | 2013-05-25 | 2013-09-04 | 佛山市顺德区数码彩涂料有限公司 | Environment-friendly water-based wood coating |
| CN104001656A (en) * | 2014-06-10 | 2014-08-27 | 北京环洋经典展柜制造有限公司 | Showcase oil paint orange peel prevention method |
| CN104877514A (en) * | 2014-12-04 | 2015-09-02 | 北京金汇利应用化工制品有限公司 | Amino resin stoving varnish containing water-borne acrylic modified alkyd resin and preparation method thereof |
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2022
- 2022-06-25 CN CN202210728438.6A patent/CN115090499A/en active Pending
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|---|---|---|---|---|
| JPH1176929A (en) * | 1997-09-09 | 1999-03-23 | Nippon Paint Co Ltd | Coating of wood and coated wood |
| CN101831225A (en) * | 2010-04-15 | 2010-09-15 | 林玉财 | Low-carbon environmental-friendly aqueous wood lacquer with double components |
| CN103275577A (en) * | 2013-05-25 | 2013-09-04 | 佛山市顺德区数码彩涂料有限公司 | Environment-friendly water-based wood coating |
| CN104001656A (en) * | 2014-06-10 | 2014-08-27 | 北京环洋经典展柜制造有限公司 | Showcase oil paint orange peel prevention method |
| CN104877514A (en) * | 2014-12-04 | 2015-09-02 | 北京金汇利应用化工制品有限公司 | Amino resin stoving varnish containing water-borne acrylic modified alkyd resin and preparation method thereof |
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Application publication date: 20220923 |