CN102504686A - Enhancement technology for properties of paint film on surface of wooden article - Google Patents
Enhancement technology for properties of paint film on surface of wooden article Download PDFInfo
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- CN102504686A CN102504686A CN201110371591XA CN201110371591A CN102504686A CN 102504686 A CN102504686 A CN 102504686A CN 201110371591X A CN201110371591X A CN 201110371591XA CN 201110371591 A CN201110371591 A CN 201110371591A CN 102504686 A CN102504686 A CN 102504686A
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Abstract
The invention discloses an enhancement technology for the properties of a paint film on the surface of a wooden article. A preparation method of nano silica and polyurethane combined wood paint is that nano silica which is subject to surface modification treatment is added in polyurethane wood paint by using a mechanical stirring method, wherein the addition of the nano silica is 2 to 3 percent of the mass of the polyurethane wood paint. Through the adoption of the nano silica and polyurethane combined wood paint in the paint film coated on the wooden article, the adhesive attraction, the rigidity, the wearing resistance and the aging resistance of the paint film are enhanced.
Description
Technical field
The present invention relates to a kind of woodwork paint film property increases technology, and what be specifically related to is the enhanced process of woodwork paint film adhesion, hardness, wear resistance, ageing-resistant performance, i.e. the enhanced process of wood product surface paint film property.
Background technology
At present; Fields such as polyurethane carpentry paint uses on the floor substantially, furniture, cabinet, timber, timber window; Because the performance deficiency of polyurethane carpentry paint own makes paint film adhesion, hardness, wear resistance, ageing-resistant performance be difficult to satisfy the use needs of specific product.Problems such as the peeling off of paint film, cut, show-through, variable color in use often appear in product.Influence the working life and the aesthetics of product greatly.
Summary of the invention
To the deficiency that prior art exists, the object of the invention provides a kind of enhanced process that improves the wood product surface paint film property of polyurethane carpentry paint paint film adhesion, hardness, wear resistance, ageing-resistant performance, and it is simple to operate, and cost is low.
To achieve these goals, the present invention realizes by the following technical solutions:
The preparation method of the compound wood lacquer of nano silicon/urethane of the present invention, its preparation method is:
Nano silicon is joined in the polyurethane carpentry paint thinner, put in the vessel, mechanical stirring was disperseed 30 minutes; In the suspension-s that obtains, add polyurethane carpentry paint host and polyurethane carpentry paint solidifying agent, mechanical stirring 30 minutes again after the mixing makes the compound wood lacquer suspension-s of nano silicon/urethane; Take out the compound wood lacquer suspension-s of described nano silicon/urethane; Use strainer filtering, left standstill 10 minutes, finally obtain the compound wood lacquer of nano silicon/urethane.
Above-mentioned nano silicon is the nano silicon that carries out after the surface modification treatment; Pass through surface modification treatment; Be not easy to reunite, keep between nano silicon and the polyurethane carpentry paint consistency being arranged, said nano silicon portion-wise addition is in the polyurethane carpentry paint thinner.
The addition of above-mentioned nano silicon is the M of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent total amount, wherein, and 0%＜M≤5%.
The addition of above-mentioned nano silicon is the 2-3% of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent total amount, and the proportioning of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent is according to concrete shop instruction.
The enhanced process of wood product surface paint film property of the present invention; The number of selecting priming paint and finish paint according to woodwork specific product demand is (wherein to implementing operations such as Puttying, painted, wiping Ge Lisi in the woodwork base material; Be not included among priming paint and the finish paint number), its covering with paint technology is:
When the total road of the paint film of woodwork number (=priming paint number+finish paint number) when being the 2N-1 road; With the equal any compound wood lacquer of described nano silicon/urethane of brushing claim 1 to 3 of the paint film of odd numbered trace, the paint film in even number road is all brushed pure polyurethane carpentry paint or equal any one compound wood lacquers of nano silicon/urethane of brushing claim 1 to 3;
When the total road of the paint film of woodwork number is the 2N road; Odd numbered trace with the equal any compound wood lacquer of described nano silicon/urethane of brushing claim 1 to 3 of last paint film, is all brushed pure polyurethane carpentry paint or equal any one compound wood lacquers of nano silicon/urethane of brushing claim 1 to 3 with the paint film in all the other roads; Wherein, N is the positive integer more than or equal to 2.
The sand milling of per pass priming paint and finish paint is treated can operate after the paint film completely solidified, and per pass priming paint and finish paint sand milling are selected corresponding sand grains size according to the performance of paint film.
The compound wood lacquer of nano silicon/urethane that the present invention makes through such scheme is applied in woodwork, has strengthened the woodwork paint film property; And through above-mentioned brushing technique; Obviously strengthen woodwork paint film adhesion, hardness, wear resistance, ageing-resistant performance, simple to operate, cost is low.
Description of drawings
Fig. 1 is the compound wood lacquer preparation method of nano silicon/urethane of the present invention figure;
Fig. 2 is the enhanced process schematic flow sheet of wood product surface paint film property of the present invention;
Fig. 3 is to use a wood product structure synoptic diagram of the enhanced process of wood product surface paint film property of the present invention;
Fig. 4 is to use another wood product structure synoptic diagram of the enhanced process of wood product surface paint film property of the present invention.
Each label among the figure: the compound wood lacquer 1 of nano silicon/urethane, pure polyurethane carpentry paint 2, woodwork base material 3, priming paint 4, finish paint 5.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with embodiment, further set forth the present invention.
Referring to Fig. 1, in the present embodiment, certain paint producer polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent be provided as 1: 0.5: 0.5; The nano silicon of KH550 surface modification treatment divided join for three times in the 100g polyurethane carpentry paint thinner; Put in the container, mechanical stirring was disperseed 30 minutes, in the suspension-s that obtains, added 200g polyurethane carpentry paint host and 100g polyurethane carpentry paint solidifying agent; Mechanical stirring 30 minutes again after the mixing; Make the compound wood lacquer suspension-s of nano silicon/urethane, take out the compound wood lacquer suspension-s of nano silicon/urethane, use strainer filtering; Left standstill 10 minutes, and obtained the compound wood lacquer of qualified nano silicon/urethane.
In the present embodiment, nano silicon is the nano silicon after the surface modification treatment, and surface modification treatment is a prior art, exactly in order to prevent that nano material from reuniting, influence dispersion effect in dispersion-s.
The addition of nano silicon is the 2-3% of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent total amount.The compound wood lacquer of the nano silicon/urethane for preparing needs in 4-6 hour, to brush on woodwork base material 3.
In addition; In more existing polyurethane carpentry paints, also adding has that polyurethane carpentry paint is auxiliary uses agent; At this moment, the addition of nano silicon is the auxiliary 2-3% with the agent total amount of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent and polyurethane carpentry paint.
Referring to Fig. 2 and Fig. 3, according to the number of concrete woodwork product demand selection priming paint 4 and finish paint 5, for example; The paint film that certain timber is covered with paint, lacquer, colour wash, etc. is five roads; Wherein be provided with three road priming paint 4 and twice finish paint 5, its brushing technique step is: earlier to woodwork base material 3 usefulness 180# sand paper sanded, the woodwork base material 3 of processing needs in two hours, to cover with paint, lacquer, colour wash, etc.; The first road priming paint uses the good compound wood lacquer 1 of nano silicon/urethane (the first road priming paint) of prepared to be sprayed on woodwork base material 3 surfaces in the covering with paint; After treating the first road priming paint paint film completely solidified, carry out sanded with 180# sand paper, the woodwork base material 3 after the processing dust removal carries out Puttying again to be handled; After treating the putty drying,, handle and to carry out bottom coloring after the dust removal and handle, treat after the background color drying, spray the pure polyurethane carpentry paint 2 in second road (the second road priming paint) after handling dust removal with 180# sand paper sanded with 180# sand paper sanded; After treating the second road priming paint paint film completely solidified, with 240# sand paper sanded, the woodwork base material 3 spraying compound wood lacquers 1 of the 3rd road nano silicon/urethane (the 3rd road priming paint) after the processing dust removal; After treating the 3rd road priming paint paint film completely solidified, carry out sanded with 360# sand paper, the woodwork base material 3 spraying pure polyurethane carpentry paints 2 in first road (the first road finish paint) after the processing dust removal are repaiied look and are handled; After treating the first road finish paint paint film completely solidified, carry out sanded with the 400# sand milling, the woodwork base material 3 spraying compound wood lacquers 1 of second road nano silicon/urethane (the second road finish paint) after the processing dust removal are treated to be the paint finished product after the second road finish paint solidifies.
Referring to Fig. 2 and Fig. 4; Select priming paint 4 and finish paint 5 numbers according to concrete woodwork product demand; For example, the paint film that certain furniture is covered with paint, lacquer, colour wash, etc. is six roads, wherein; It is provided with three road priming paint 4 and three road finish paints 5; Its brushing technique step is: the woodwork base material 3 usefulness 180# sand paper sanded of earlier furniture being covered with paint, lacquer, colour wash, etc., the furniture base material of processing need in two hours, to cover with paint, lacquer, colour wash, etc., and the first road priming paint uses the good compound wood lacquer 1 of nano silicon/urethane (the first road priming paint) of prepared to be sprayed on the furniture substrate surface in the covering with paint; After treating the first road priming paint paint film completely solidified; With 180# sand paper sanded, handle furniture base material after the dust removal and carry out Puttying and handle, treat the putty drying after; With 180# sand paper sanded; Handle and to wipe Ge Lisi after the dust removal and handle, treat after the Ge Lisi drying, spray the pure polyurethane carpentry paint 2 in second road (the second road priming paint) after handling dust removal with 180# sand paper sanded; After treating the second road priming paint paint film completely solidified, with 240# sand paper sanded, the furniture base material after the processing dust removal sprays the compound wood lacquer 1 of the 3rd road nano silicon/urethane (the 3rd road priming paint); After treating the 3rd road priming paint paint film completely solidified, with 360# sand paper sanded, the furniture base material after the processing dust removal sprays the pure polyurethane carpentry paint 2 in first road (the first road finish paint); After treating the first road finish paint paint film completely solidified; With 400# sand paper sanded; Handle furniture base material after the dust removal and spray the compound wood lacquer 1 of second road nano silicon/urethane (the second road finish paint) and repair look and handle, treat the second road finish paint paint film completely solidified after, with 600# sand paper sanded; Furniture base material after the processing dust removal sprays the compound wood lacquer 1 of the 3rd road nano silicon/urethane (the 3rd road finish paint), treats to be the paint finished product behind the 3rd road finish paint film curing.
Experiment test paint film adhesion, hardness, wear resistance, ageing-resistant performance are following:
1 paint film adhesion
Paint film adhesion test reference GB/T 9286-1998 " cross cut test of paint and varnish paint film ".
A base material and the 1st road priming paint ply adhesion
Paint film sample label is XA
a, X represents wad, and A represents the 1st road priming paint, and a represents the nanometer SiO through the KH550 surface modification treatment
2Content in polyurethane carpentry paint (a=0-5%).
Sticking power between table 1 base material and the 1st road priming paint
| Sample | |
| XA | |
| 0 | 2 |
| |
1 |
| |
1 |
| XA 3 | 0 |
| |
2 |
| XA 5 | 3 |
B the 1st road priming paint and the 2nd road priming paint ply adhesion
Paint film sample label is A
aB
b, A represents the 1st road priming paint, and B represents the 2nd road priming paint, and a and b represent the content (a, b=0-5%) of nano silicon in polyurethane carpentry paint through the surface modification treatment of KH550.
Table 2 the 1st road priming paint and the 2nd road priming paint ply adhesion
| Sample | Sticking power |
| A 0B 0 | 2 |
| A 1B 0 | 1 |
| A 2B 0 | 1 |
| A 3B 0 | 0 |
| A 4B 0 | 2 |
| A 5B 0 | 3 |
| A 1B 1 | 1 |
| A 2B 2 | 1 |
| A 3B 3 | 0 |
| A 4B 4 | 1 |
| A
5 |
2 |
C the 3rd road priming paint and the 1st road finish paint ply adhesion
Paint film sample label is C
cD
d, C represents the 3rd road priming paint, and D represents the 1st road finish paint, and c and d represent the content (c, d=0-5%) of nano silicon in polyurethane carpentry paint through the surface modification treatment of KH550.
Table 3 the 3rd road priming paint and the 1st road finish paint ply adhesion
| Sample | Sticking power |
| C 0D 0 | 2 |
| C 1D 0 | 1 |
| C 2D 0 | 0 |
| C 3D 0 | 0 |
| C 4D 0 | 2 |
| C 5D 0 | 3 |
| C 1D 1 | 1 |
| C 2D 2 | 1 |
| C 3D 3 | 0 |
| C 4D 4 | 1 |
| C 5D 5 | 2 |
D the 1st road finish paint and the 2nd road finish paint ply adhesion
Paint film sample label is D
dE
e, D represents the 3rd road priming paint, and E represents the first road finish paint, and d and e represent the content (d, e=0-5%) of nano silicon in polyurethane carpentry paint through the surface modification treatment of KH550.
Table 4 the 1st road finish paint and the 2nd road finish paint ply adhesion
| Sample | Sticking power |
| D 0E 0 | 2 |
| D 1E 0 | 2 |
| D 2E 0 | 0 |
| D 3E 0 | 0 |
| D 4E 0 | 2 |
| D 5E 0 | 3 |
| D 1E 1 | 1 |
| D 2E 2 | 0 |
| D 3E 3 | 0 |
| D 4E 4 | 1 |
| D 5E 5 | 2 |
E paint film overall adhesion
The total road of the paint film of following test data number (=priming paint 3 roads+finish paint 2 roads) is 5 roads, and its label is A
aB
bC
cD
dE
eA represents the first road priming paint; B represents the second road priming paint, and C represents the 3rd road priming paint, and D represents the first road finish paint; E represents the second road finish paint, and a, b, c, d, e represent the content (a, b, c, d, e=0-5%) of nano silicon in polyurethane carpentry paint through the KH550 surface modification treatment.
Different technology and the corresponding paint film adhesions of nanometer titanium dioxide silicone content of covering with paint, lacquer, colour wash, etc. of table 5
| The paint film sample | Paint film adhesion |
| A 0B 0C 0D 0E 0 | 2 |
| A 1B 0C 1D 0E 1 | 1 |
| A 2B 0C 2D 0E 2 | 0 |
| A 3B 0C 3D 0E 3 | 1 |
| A 4B 0C 4D 0E 4 | 2 |
| A 5B 0C 5D 0E 5 | 3 |
| A 1B 1C 1D 1E 1 | 1 |
| A 2B 2C 2D 2E 2 | 0 |
| A 3B 3C 3D 3E 3 | 0 |
| A 4B 4C 4D 4E 4 | 2 |
| A 5B 5C 5D 5E 5 | 3 |
2. hardness of paint film
Hardness of paint film test reference GB6739-96 " hardness of paint film pencil assay method ".
Different technology and the corresponding hardness of paint films of nanometer titanium dioxide silicone content covered with paint, lacquer, colour wash, etc. of table 6
| The paint film sample | Hardness of paint film |
| A 0B 0C 0D 0E 0 | H |
| A 1B 0C 1D 0E 1 | 2H |
| A 2B 0C 2D 0E 2 | 3H |
| A 3B 0C 3D 0E 3 | 3H |
| A 4B 0C 4D 0E 4 | 3H |
| A 5B 0C 5D 0E 5 | 3H |
| A 1B 1C 1D 1E 1 | 2H |
| A 2B 2C 2D 2E 2 | 3H |
| A 3B 3C 3D 3E 3 | 3H |
| A 4B 4C 4D 4E 4 | 3H |
| A 5B 5C 5D 5E 5 | 3H |
3. paint film wear resistance
The paint film wearability test is with reference to GB 4893.8-85 " furniture surface Determination of Abrasion Resistance for Coating Film "
Different technology and the corresponding paint film wear resistancies of nanometer titanium dioxide silicone content of covering with paint, lacquer, colour wash, etc. of table 7
4. paint film stability to aging
Paint film stability to aging test reference GB/T16422.3-1997 " ultraviolet light and aging touchstone " adopts CIE1976 (L
*a
*b
*) colorimetry space colour system, according to GB/T11186.2-1989 and GB/T11186.3-1989 " measuring method of paint film color ", measure with the color that the full-automatic colour examining colour-difference-metre of X-Rite is handled the front and back coating surface to the UV-light accelerated deterioration.And write down every test specimen at the lightness index L that handles front and back
*, red green axle chromaticity index a
*, champac axle chromaticity index b
*, color measurenent value E
*Through following colour system formula, can try to achieve luminosity equation (Δ L respectively
*), poor (the Δ a of chromaticity index
*, Δ b
*) and comprehensive aberration (Δ E
*), judgement criteria is with reference to GB/T1766-1995 " ranking method of paint and varnish coating aging ".
The colorimetry parameter of coating surface before and after the accelerated deterioration of table 8 UV-light is handled
Record through test; Through the hydroxyl of the unsaturated residual attitude of nano-silica surface of KH550 surface modification treatment and different bonding states can with the group generation bonding action in isocyanic ester and the polyurethane carpentry paint; Increase polyurethane carpentry paint tridimensional network intensive and linkage force; Hardness own is high, particle size is little, specific surface area is big and UV-light is had very strong absorptivity; Can find out from above testing data; When addition was 2-3% in polyurethane carpentry paint through the nano silicon of KH550 surface modification treatment, the compound wood lacquer of odd-level brushing nano silicon/urethane of paint film was all brushed pure polyurethane carpentry paint with the paint film in even number road; The ply adhesion of paint film, overall adhesion, hardness, wear resistance and ageing-resistant performance are with all the compound wood lacquer paint film of lacquer brushing nano silicon/urethane test result is identical substantially; The compound wood lacquer of odd-level brushing nano silicon/urethane of paint film is all brushed this technology of pure polyurethane carpentry paint with the paint film in even number road and is significantly reduced to this simultaneously, simplifies technology and paint film adhesion, hardness, wear resistance and ageing-resistant performance and obviously strengthens.
When the total road of the paint film of woodwork number (=priming paint number+finish paint number) when being the 2N-1 road; With the equal any compound wood lacquer of described nano silicon/urethane of brushing claim 1 to 3 of the paint film of odd numbered trace; The paint film in even number road is all brushed pure polyurethane carpentry paint; Make the ply adhesion of paint film strengthen, and then agents enhance overall sticking power, last one finish paint just is odd-level simultaneously; Hardness, wear resistance, ageing-resistant performance to paint film further strengthen, and make whole paint film adhesion, hardness, wear resistance, ageing-resistant performance be enhanced simultaneously.
When the total road of the paint film of woodwork number (=priming paint number+finish paint number) when being the 2N road; With the equal any compound wood lacquer of described nano silicon/urethane of brushing claim 1 to 3 of the paint film of odd numbered trace; The paint film in even number road is all brushed pure polyurethane carpentry paint; Its last road odd-level paint film just is the 2N-1 road; For better hardness of paint film, wear resistance, the ageing-resistant performance of strengthening, guarantee to make whole paint film adhesion, hardness, wear resistance, ageing-resistant performance be enhanced simultaneously at the compound wood lacquer of 2N brushing nano silicon/urethane.
The compound wood lacquer of nano silicon/urethane that method of the present invention is made is applied on the woodwork, and through above-mentioned brushing technique, obviously strengthens woodwork paint film adhesion, hardness, wear resistance, ageing-resistant performance, and simple to operate, cost is low.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification sheets just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (5)
1. the preparation method of the compound wood lacquer of nano silicon/urethane is characterized in that, its preparation method is:
Nano silicon is joined in the polyurethane carpentry paint thinner, put in the vessel, mechanical stirring was disperseed 30 minutes; In the suspension-s that obtains, add polyurethane carpentry paint host and polyurethane carpentry paint solidifying agent, mechanical stirring 30 minutes again after the mixing makes the compound wood lacquer suspension-s of nano silicon/urethane; Take out the compound wood lacquer suspension-s of described nano silicon/urethane; Use strainer filtering, left standstill 10 minutes, finally obtain the compound wood lacquer of nano silicon/urethane.
2. the preparation method of the compound wood lacquer of nano silicon/urethane according to claim 1 is characterized in that,
Said nano silicon is the nano silicon that carries out after the surface modification treatment, and said nano silicon portion-wise addition is in the polyurethane carpentry paint thinner.
3. the preparation method of the compound wood lacquer of nano silicon/urethane according to claim 1 is characterized in that,
The addition of said nano silicon is the M of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent total amount, wherein, and 0%＜M≤5%.
4. the preparation method of the compound wood lacquer of nano silicon/urethane according to claim 3 is characterized in that,
The addition of said nano silicon is the 2-3% of polyurethane carpentry paint host, polyurethane carpentry paint thinner, polyurethane carpentry paint solidifying agent total amount.
5. the enhanced process of wood product surface paint film property is characterized in that, its covering with paint technology is:
When the total road of the paint film of woodwork number is the 2N-1 road; With the equal any compound wood lacquer of described nano silicon/urethane of brushing claim 1 to 3 of the paint film of odd numbered trace, the paint film in even number road is all brushed pure polyurethane carpentry paint or equal any compound wood lacquers of described nano silicon/urethane of brushing claim 1 to 3;
When the total road of the paint film of woodwork number is the 2N road; Odd numbered trace with the equal any compound wood lacquer of described nano silicon/urethane of brushing claim 1 to 3 of last paint film, is all brushed pure polyurethane carpentry paint or equal any compound wood lacquers of described nano silicon/urethane of brushing claim 1 to 3 with the paint film in all the other roads;
Wherein, N is the positive integer more than or equal to 2.
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| US8916639B2 (en) * | 2012-11-26 | 2014-12-23 | Shenzhen Futaihong Precision Industry Co., Ltd. | Paint composition and coated article using the same |
| CN104588286A (en) * | 2015-01-04 | 2015-05-06 | 安徽皇室尊尼木业有限公司 | Wood door painting process |
| CN106272852A (en) * | 2016-08-16 | 2017-01-04 | 崇州市欧帝名家家具有限公司 | A kind of method of modified cabinet-wood case hardness |
| CN110358430A (en) * | 2019-07-23 | 2019-10-22 | 佛山华楠树水性涂料有限公司 | A kind of full dumb light clear finish of double-component aqueous woodenware of high hard, high patience |
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Application publication date: 20120620 |