CN111393924B - High polymer material coated on woodware surface and capable of being used under dry-wet alternate condition and preparation method thereof - Google Patents

High polymer material coated on woodware surface and capable of being used under dry-wet alternate condition and preparation method thereof Download PDF

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CN111393924B
CN111393924B CN201910001304.2A CN201910001304A CN111393924B CN 111393924 B CN111393924 B CN 111393924B CN 201910001304 A CN201910001304 A CN 201910001304A CN 111393924 B CN111393924 B CN 111393924B
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dry
woodware
wet
agent
polymer material
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CN111393924A (en
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李颖珺
高建东
周松涛
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Nippon Paint China Co Ltd
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Nippon Paint China Co Ltd
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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
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/42—Gloss-reducing agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

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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)
  • Paints Or Removers (AREA)

Abstract

The invention relates to a high polymer material coated on the surface of woodware under the condition of alternation of dry and wet and a preparation method thereof. The invention has the following technical advantages: 1) the high-polymer material which is an aqueous system and can be coated on the surface of the woodware is selected, the environment-friendly property is required to be good, but the problem that the hydrophilic group of the aqueous product has more water vapor resistance and is relatively poor is required to be solved; 2) the single-component product system is convenient to use; 3) the surface protection function of the woodware can be realized under the dry-wet alternate condition. Aiming at the situation that no commodity is sold and used in the market, the invention fills the market gap.

Description

High polymer material coated on woodware surface and capable of being used under dry-wet alternate condition and preparation method thereof
Technical Field
The invention relates to the field of coatings, in particular to a high polymer material which can be coated on the surface of woodware under the condition of alternate dry and wet conditions and a preparation method thereof.
Background
The main states of the home decoration market in the past are: after field construction and a period of maintenance and ventilation, consumers live in, so the oily wood lacquer product can be used as a main material for protecting and decorating a wood structure. However, with the change of consumption concept and the gradual increase of environmental protection importance, the use of aqueous products is more and more keen, and with the development of the concept of refreshing service, the requirements of aqueous refreshing materials are also more and more high, the environmental protection, the performance is good, the decoration is strong, and the like, and the aqueous refreshing materials become the basic requirements of refreshing matched products. Among these, the areas near kitchens and bathrooms are easy to be exposed to water vapor, and the water vapor is not continuous but is in a dry-wet alternating state, so that a paint film coated on a wood structure is required to be capable of establishing a protective effect under the dry-wet alternating environment in a short time.
The existing market does not find a high polymer material coated on the surface of the woodware for the use under the condition of alternation between dry and wet, and the existing technical scheme mainly aims at the products used in the wet area and in places with high water resistance requirements, including oily two-component polyurethane, water-based two-component polyurethane, industrial zinc-rich coating and the like, and the main problems of the technologies are as follows: 1) the environmental protection property can not meet the requirement, the VOC emission is high, the heavy metal content is high and the like; 2) the use is relatively complex, and the multi-component can be used after being uniformly mixed. On the other hand, the traditional waterborne high polymer material coated on the surface of the wood lacquer cannot play a role in protection in the early or late stage in the dry-wet alternative environment.
Disclosure of Invention
The invention aims to overcome the problems and provide a high polymer material which can be used under the condition of alternate dry and wet and is coated on the surface of woodware and a preparation method thereof. The invention has the following technical advantages:
1) the high-polymer material which is an aqueous system and can be coated on the surface of the woodware is selected, the environment-friendly property is required to be good, but the problem that the hydrophilic group of the aqueous product has more water vapor resistance and is relatively poor is required to be solved;
2) the single-component product system is convenient to use;
3) the surface protection function of the woodware can be realized under the dry-wet alternate condition.
In order to solve the problems, the invention is realized by the following technical scheme:
the high polymer material coated on the surface of the woodware can be used under the condition of alternate dry and wet conditions,
it is prepared from the following components in percentage by weight:
Figure BDA0001933667820000021
Figure BDA0001933667820000031
the sum of the weight percentages of all the components is 100 percent.
The emulsion, the water, the film forming additive, the surface wetting agent, the hand feeling additive, the rheological additive, the defoaming agent, the flatting agent and the in-tank preservative can adopt common corresponding raw materials in the field, and the preparation of the high polymer material coated on the surface of the woodware and capable of being used under the dry-wet alternate condition can be carried out according to a corresponding conventional method or a product operation specification, but the product with better performance can be obtained by using the following optimization scheme.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the emulsion is acrylic acid self-crosslinking emulsion
Figure BDA0001933667820000032
8330. Polyurethane dispersions
Figure BDA0001933667820000033
R-2180 and acrylic modified polyurethane NeoPacTM E-129.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the film-forming assistant is one or a combination of more of dipropylene glycol butyl ether, tripropylene glycol butyl ether, propylene glycol propyl ether, dipropylene glycol dimethyl ether, ethylene glycol butyl ether, dodecyl alcohol ester and dipropylene glycol methyl ether.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the surface wetting agent is
Figure BDA0001933667820000041
AD01、
Figure BDA0001933667820000042
SURFYNOL 104PG-50, DuPont TM
Figure BDA0001933667820000043
FS-61、
Figure BDA0001933667820000044
One or more of WE 3500, AFCONA-3585 and AFCONA-3580And (4) combination.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the hand feeling auxiliary agent is
Figure BDA0001933667820000045
Glide 482、
Figure BDA0001933667820000046
D-816、
Figure BDA0001933667820000047
One or more combinations of Glide 410.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the rheological additive is one or a combination of a plurality of materials selected from Rohm-2020 and AERODISP W7520N, BYK-420.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the defoaming agent is
Figure BDA0001933667820000048
Foamex 845、
Figure BDA0001933667820000049
One or a combination of Airex 902W.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the flatting agent is one or a combination of BYK CERAFLOUR _1000 and flatting slurry.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
wherein the matting paste comprises: 78-82 wt% of water, 1-3 wt% of propylene glycol, 2-4 wt% of extinction pulp dispersing agent, 0.2-0.4 wt% of pH regulator, 13-14 wt% of extinction powder and 0.1-0.3 wt% of extinction pulp defoaming agent, wherein the sum of the mass percentages of all extinction pulp components is 100%.
The high polymer material coated on the surface of the woodware and used under the condition of alternate dry and wet conditions is further optimized as follows:
the preservative in the tank is
Figure BDA0001933667820000051
B 20。
The invention also relates to a preparation method of the high polymer material coated on the surface of the woodware, which can be used under the condition of alternating dry and wet conditions, and comprises the following steps:
firstly, adding emulsion into a dispersion cylinder, starting stirring, and controlling the rotation speed to be in the medium-speed dispersion range of 600-800 r/min;
and adding 25 wt% of water, a film forming aid, a surface wetting agent, a hand feeling aid, a rheological aid and a defoaming agent into a dispersion cylinder to form a mixed solution, dispersing at a high speed of 1000-1500 r/min for 10-15 minutes, slowly adding a delustering agent, dispersing at a high speed of 1000-1500 r/min for 10-15 minutes, adding a preservative and the rest water into the tank, dispersing at a medium speed for 10 minutes, sampling to detect that the fineness of a finished product is within 20-35 mu m and the viscosity is within a KU range, filtering, canning and packaging.
The existing technology for resisting water vapor in a humid environment mostly adopts oil-based polyurethane products or industrial zinc-rich coatings and the like, and the technology generally has the environmental protection hidden dangers of high VOC (volatile organic compounds) emission, high heavy metal content and the like. The traditional coating material for the surface of the single-component woodware cannot meet the use requirement under the condition of alternation of dry and wet, and paint film defects such as foaming, whitening, cracking and the like are easy to occur. The two-component water-based wood paint is relatively not convenient to use compared with a single-component product, and multiple components can be used by firstly blending.
The invention adopts a water-based acrylic emulsion system, and meets the requirements of the technical requirements of HJ 2537-. Meanwhile, the water vapor resistance of the paint film is considered, the requirement of using the paint film under the condition of alternation of dry and wet can be met in a short time, and the paint film is prevented from being damaged by water vapor.
The invention adopts a water-based acrylic acid self-crosslinking emulsion system, the paint film can be solidified at normal temperature, and is matched with film-forming additives with high boiling point and low boiling point, and the paint film is matched with hydrophilicity and hydrophobicity, so that the stability of the main paint is good, the paint film can be quickly formed, and the performance and the surface effect of the paint film are ensured.
Meanwhile, the invention is matched with a hand feeling auxiliary agent
Figure BDA0001933667820000061
Glide 482 and
Figure BDA0001933667820000062
the use of D-816 ensures the hand feeling and the scratch resistance of the paint film, forms better protection on the surface of the woodware, and simultaneously gives consideration to the water vapor resistance under the dry-wet alternating condition, so that the paint film can not generate the problems of whitening, foaming, cracking and the like under the environment.
Since the aqueous paints themselves require water as a solvent, the raw materials are mostly treated in an aqueous manner to ensure good miscibility in aqueous systems. And with the volatilization of water and a film-forming solvent, hydrophilic groups of the substances remained in the paint film still remain, so that the water resistance of the paint film of the water-based paint is a main problem to be solved.
In the selection process of the raw materials, the stability in a water-based system needs to be ensured, and a paint film has certain water resistance after being dried, so that the use under the dry-wet alternative condition can be ensured.
Specifically, the key technical points that the invention can produce beneficial effects are as follows:
1. acrylic acid self-crosslinking emulsion
Figure BDA0001933667820000063
8330 selection of emulsion:
Figure BDA0001933667820000064
8330A self-crosslinking acrylic emulsion has chemical properties that it can be coated on the surface of wood to form a filmHigh polymer with certain crosslinking density is formed in a short period, and after the high polymer is combined with proper auxiliaries, better water resistance under the dry-wet alternation condition can be achieved.
2. Selection of micronized organically modified polymer BYK ceraflor — 1000:
BYK CERAFLOUR _1000 is a micronized organic modified polymer similar to wax, has small particle size, D50 of 5 mu m and D90 of 11 mu m, is a hydrophobic substance, has hydrophilicity after being modified, and realizes the production process. After entering the paint film, the paint film has certain filling property, and the hydrophobic property of the paint film is combined, so that water vapor is prevented from entering the paint film to a certain extent.
3. The film forming auxiliary agent dipropylene glycol butyl ether, dipropylene glycol methyl ether and dodecyl alcohol ester are selected and matched as follows:
dipropylene glycol butyl ether and dodecyl alcohol ester are hydrophobic solvents and have poor compatibility in water; dipropylene glycol methyl ether is a hydrophilic solvent, miscible with water. The addition of the hydrophilic solvent ensures the compatibility of the system, and the addition of the hydrophobic solvent can make the hydrophobic chain segment spread in the system as far as possible. The proper proportion of the two types of solvents is matched for use, and the performance of a paint film and the water vapor resistance of the paint film under the dry-wet alternative condition at the initial stage can be effectively ensured.
In addition, the boiling points of the dipropylene glycol methyl ether and the dipropylene glycol butyl ether are relatively low, the film forming of the paint film is fast, so that the paint film can establish a protection effect on water vapor, the dodecyl alcohol ester is a high-boiling-point solvent, the boiling point of the dodecyl alcohol ester is 255 ℃, a small amount of high-boiling-point film forming auxiliary agent is properly used, and the dodecyl alcohol ester and the low-boiling-point film forming auxiliary agent are compounded for use, so that a synergistic effect can be achieved, the film forming speed is considered, and the performance and the surface effect of the paint film are ensured.
4. Hand feeling auxiliary agent
Figure BDA0001933667820000071
Glide 482 and
Figure BDA0001933667820000072
the matching use of D-816:
Figure BDA0001933667820000073
glide 482 is a high molecular weight polydimethylsiloxane emulsion, the hand feeling of a paint film and the scratch resistance of the paint film are improved by adding the polydimethylsiloxane emulsion, and the action mechanism of the polydimethylsiloxane emulsion is the directional distribution of methyl on the surface of the paint film.
Figure BDA0001933667820000074
D-816 is high-density polyethylene wax, which migrates to the surface of the coating film during the film forming process to form a wax protective film.
Figure BDA0001933667820000081
D-816 can improve the scratch resistance of the paint film, but excessive use can affect the transparency and the gloss of the paint film.
The function mechanism of the hand feeling auxiliary agent is that the hand feeling auxiliary agent migrates to the surface of the coating film to form a protective layer, the molecular weight is generally larger in order to improve the scratch resistance effect of the coating film, and meanwhile, in order to have better compatibility with a water-based system, the auxiliary agent needs to be subjected to water-based modification treatment and contains hydrophilic groups, so that the water vapor resistance of the coating film is influenced to a certain extent while the hand feeling and the scratch resistance are improved.
So will
Figure BDA0001933667820000082
Glide 482 and
Figure BDA0001933667820000083
d-816 is used in a compounding way, so that the influence of the hand feeling auxiliary agent on the initial water vapor resistance of the paint film is minimized, and the purposes of improving hand feeling and scraping resistance are achieved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. The simple improvement of the preparation method of the invention on the premise of the conception of the invention belongs to the protection scope of the invention.
Example 1
The invention relates to a preparation method of a high polymer material coated on the surface of woodware and capable of being used under the condition of alternation of dry and wet, which comprises the following steps:
firstly, adding emulsion into a dispersion cylinder, starting stirring, and controlling the rotation speed to be in the medium-speed dispersion range of 600-800 r/min;
and adding 25 wt% of water, a film forming aid, a surface wetting agent, a hand feeling aid, a rheological aid and a defoaming agent into a dispersion cylinder to form a mixed solution, dispersing at a high speed of 1000-1500 r/min for 10-15 minutes, slowly adding a delustering agent, dispersing at a high speed of 1000-1500 r/min for 10-15 minutes, adding a preservative and the rest water into the tank, dispersing at a medium speed for 10 minutes, sampling to detect that the fineness of a finished product is within 20-35 mu m and the viscosity is within a KU range, filtering, canning and packaging.
Table 1 shows the composition of the high polymer material coated on the surface of woodware, which can be used under the condition of alternating dry and wet conditions.
Table 1 raw material composition table (wt%) of high polymeric material coated on woodware surface that can be used under alternate dry and wet conditions:
component name 1# 2# 3# 4# 5#
Acrylic acid self-crosslinking emulsion 74 78 / / /
Polyurethane dispersions / / 74 / 75
Acrylic acid modified polyurethane / / / 74 /
Water (W) 8.3 8.4 11.3 8.3 9
Film forming aid 5.5 5.5 5.5 6 5.8
Surface wetting agent 1 1 1 1 1
Hand feeling auxiliary agent 0.5 0.5 1.5 0.5 1
Rheology aid 5 4.7 5 4.8 4.9
Defoaming agent 0.6 0.8 0.6 0.6 0.7
Extinction slurry 5 / 1 3 2.5
BYK CERAFLOUR_1000 / 1 / 1.7 /
In-can preservative 0.1 0.1 0.1 0.1 0.1
The emulsion, the water, the film forming additive, the surface wetting agent, the hand feeling additive, the rheological additive, the defoaming agent, the delustering agent and the in-tank preservative can adopt common corresponding raw materials in the field, and the preparation of the high polymer material coated on the surface of the woodware under the condition of alternation of dry and wet can be carried out according to a corresponding conventional method, but a product with better performance can be obtained by using the optimization scheme in the invention.
Wherein the emulsion may preferably be an acrylic self-crosslinking emulsion
Figure BDA0001933667820000091
8330. Polyurethane dispersions
Figure BDA0001933667820000092
R-2180 and acrylic modified polyurethane NeoPacTM E-129.
The film-forming assistant can be one or a combination of more of dipropylene glycol butyl ether, tripropylene glycol butyl ether, propylene glycol propyl ether, dipropylene glycol dimethyl ether, ethylene glycol butyl ether, dodecyl alcohol ester and dipropylene glycol methyl ether.
Wherein the surface wetting agent may preferably be
Figure BDA0001933667820000101
AD01、
Figure BDA0001933667820000102
SURFYNOL 104PG-50, DuPont TM
Figure BDA0001933667820000103
FS-61、
Figure BDA0001933667820000104
WE 3500, AFCONA-3585 and AFCONA-3580.
Wherein the hand feeling auxiliary agent may preferably be
Figure BDA0001933667820000105
Glide 482、
Figure BDA0001933667820000106
D-816、
Figure BDA0001933667820000107
One or more combinations of Glide 410.
The rheological additive can be one or more of Rohm-2020 and AERODISP W7520N, BYK-420.
Wherein the defoaming agent may preferably be
Figure BDA0001933667820000108
Foamex 845、
Figure BDA0001933667820000109
One or a combination of Airex 902W.
The matting agent can be preferably one or a combination of BYK CERAFLOUR _1000 and matting slurry, and the micronized polymer gradually floats to the surface due to the fact that the density of the micronized polymer is lower than that of the polymer material in the drying process of the polymer material, so that a rough interface is formed after the polymer material is dried, and the effect of reducing gloss is achieved through a diffuse reflection effect.
Wherein the matting paste may preferably comprise: 78-82 wt% of water, 1-3 wt% of propylene glycol, 2-4 wt% of extinction pulp dispersing agent, 0.2-0.4 wt% of pH regulator, 13-14 wt% of extinction powder and 0.1-0.3 wt% of extinction pulp defoaming agent, wherein the sum of the mass percentages of all extinction pulp components is 100%.
Wherein said in-can preservative may preferably be
Figure BDA0001933667820000111
B 20。
And (3) performance detection:
(1) preparing a paint film: polishing the surface of the plate coated with the oil-based polyurethane paint film according to the proportion of 100g/m2The coating amount of the paint is that the water-based paint is constructed once, the water-based paint is placed in a baking oven with 25 ℃ and 85% humidity for maintenance for 4 hours, the water-based paint is constructed for the second time after being taken out, then the water-based paint is placed in the baking oven with 25 ℃ and 85% humidity for maintenance for 4 hours, the water-based paint is constructed for the third time after being taken out, and then the water-based paint is placed in the baking oven with 25 ℃ and 85% humidity for maintenance for 17 hours.
(2) Water vapor resistance: the paint film was tested using the apparatus described in patent number ZL201620097113.2 "humidity resistance test apparatus for aqueous wood paints".
(3) And testing the water vapor resistance for 6 hours, taking out, and observing the surface state.
(4) After the observation in the wet state, the paint film was kept at 23. + -. 3 ℃ and 50. + -. 5% humidity for 2 hours, and then the surface state of the dried paint film was observed.
Table 2 shows the results of the dry-wet alternation test of various materials commonly used in the market.
Table 2 test results for various commonly used materials on the market under dry-wet alternation conditions:
environmental simulation test 1# 2# 3# 4#
6h after testing in humid environment Obvious whiting Slight whiting Foaming Whitish and bubbly
2h after conventional environmental test Slight whiting No abnormality Foaming Whitish and bubbly
Table 3 is a table of the test results of the use of the polymeric materials coated on the wood surface that can be used under the alternate dry and wet conditions of the present invention.
Table 3 test results for the use of polymeric materials applied to the surface of wood ware that can be used under alternating dry and wet conditions:
Figure BDA0001933667820000112
Figure BDA0001933667820000121
according to the invention, the test results of various common materials in the market under the dry-wet alternating condition have various problems, but the problems in the test results are solved by using the high polymer material coated on the surface of the woodware and capable of being used under the dry-wet alternating condition, and the high polymer material reaches the relevant standards, has the capability of practical application, and is particularly suitable for application and popularization in the coating and coating of woodware furniture.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art should also realize that such equivalent variations, modifications, and alterations are possible in light of the above teachings without departing from the spirit and scope of the present invention; meanwhile, any equivalent changes, modifications and evolution made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The experimental method of the present invention, in which the specific conditions are not specified, is generally carried out under the conventional conditions or the conditions recommended by the manufacturers.
The various optimized technical schemes in the invention can be combined with each other unless otherwise stated.
Unless otherwise indicated, percentages and parts are percentages and parts by weight.
The experimental procedures described in the specification and examples, which do not specify specific conditions, are generally carried out under the conditions which are customary or recommended by the manufacturers.
The various starting materials, reagents, components used in the present invention are, unless otherwise indicated, the corresponding starting materials commonly used in the art.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention.

Claims (7)

1. A high polymer material coated on the surface of woodware and used under the condition of alternation of dry and wet is characterized in that:
it is prepared from the following components in percentage by weight:
Figure FDA0003226422410000011
the sum of the weight percentages of all the components is 100 percent;
the emulsion is acrylic acid self-crosslinking emulsion
Figure FDA0003226422410000012
8330；
The film-forming assistant is a combination of dipropylene glycol butyl ether and dipropylene glycol methyl ether, or a combination of dodecyl alcohol ester and dipropylene glycol methyl ether;
the hand feeling auxiliary agent is
Figure FDA0003226422410000013
Glide 482 and
Figure FDA0003226422410000014
a combination of D-816;
the flatting agent is one or a combination of BYK CERAFLOUR _1000 and flatting slurry.
2. The polymeric material applied to the surface of wood ware for use under alternating dry and wet conditions of claim 1, wherein:
the surface wetting agent is
Figure FDA0003226422410000015
AD01、
Figure FDA0003226422410000016
SURFYNOL 104PG-50, DuPont TM
Figure FDA0003226422410000017
FS-61、
Figure FDA0003226422410000018
WE 3500, AFCONA-3585 and AFCONA-3580.
3. The polymeric material applied to the surface of wood ware for use under alternating dry and wet conditions of claim 1, wherein:
the rheological additive is one or a combination of a plurality of materials selected from Rohm-2020 and AERODISP W7520N, BYK-420.
4. The polymeric material applied to the surface of wood ware for use under alternating dry and wet conditions of claim 1, wherein:
the defoaming agent is
Figure FDA0003226422410000021
Foamex 845、
Figure FDA0003226422410000022
One or a combination of Airex 902W.
5. The polymeric material applied to the surface of wood ware for use under alternating dry and wet conditions of claim 1, wherein:
the preservative in the tank is
Figure FDA0003226422410000023
B 20。
6. The polymeric material applied to the surface of wood ware for use under alternating dry and wet conditions of claim 1, wherein:
the extinction size comprises: 78-82 wt% of water, 1-3 wt% of propylene glycol, 2-4 wt% of extinction pulp dispersing agent, 0.2-0.4 wt% of pH regulator, 13-14 wt% of extinction powder and 0.1-0.3 wt% of extinction pulp defoaming agent, wherein the sum of the mass percentages of all extinction pulp components is 100%.
7. A method for preparing the high polymer material coated on the surface of the woodware, which can be used under the condition of alternating dry and wet conditions, according to any one of claims 1 to 6, is characterized in that:
which comprises the following steps:
firstly, adding emulsion into a dispersion cylinder, starting stirring, and controlling the rotation speed to be in the medium-speed dispersion range of 600-800 r/min;
and adding 25 wt% of water, a film forming aid, a surface wetting agent, a hand feeling aid, a rheological aid and a defoaming agent into a dispersion cylinder to form a mixed solution, dispersing at a high speed of 1000-1500 r/min for 10-15 minutes, slowly adding a delustering agent, dispersing at a high speed of 1000-1500 r/min for 10-15 minutes, adding a preservative and the rest water into the tank, dispersing at a medium speed for 10 minutes, sampling to detect that the fineness of a finished product is within 20-35 mu m and the viscosity is within a KU range, filtering, canning and packaging.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984005A (en) * 2010-11-03 2011-03-09 广东巴德士化工有限公司 Single-component water-based semi-matt varnish for woodware
CN107312412A (en) * 2017-07-27 2017-11-03 上海展辰涂料有限公司 A kind of aqueous wooden ware Adhesion enhancement one pack system dumb light toning light color topcoat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103614027B (en) * 2013-11-04 2016-08-17 三棵树涂料股份有限公司 A kind of outdoor aqueous woodenware matte clean finishing coat and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101984005A (en) * 2010-11-03 2011-03-09 广东巴德士化工有限公司 Single-component water-based semi-matt varnish for woodware
CN107312412A (en) * 2017-07-27 2017-11-03 上海展辰涂料有限公司 A kind of aqueous wooden ware Adhesion enhancement one pack system dumb light toning light color topcoat

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