CN109401629B - Remove aldehyde UV cured coating application timber apron - Google Patents
Remove aldehyde UV cured coating application timber apron Download PDFInfo
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- CN109401629B CN109401629B CN201811375363.8A CN201811375363A CN109401629B CN 109401629 B CN109401629 B CN 109401629B CN 201811375363 A CN201811375363 A CN 201811375363A CN 109401629 B CN109401629 B CN 109401629B
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- 238000000576 coating method Methods 0.000 title claims abstract description 146
- 239000011248 coating agent Substances 0.000 title claims abstract description 138
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 title description 17
- 239000002023 wood Substances 0.000 claims abstract description 52
- 238000003848 UV Light-Curing Methods 0.000 claims abstract description 28
- 239000000084 colloidal system Substances 0.000 claims abstract description 21
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011973 solid acid Substances 0.000 claims abstract description 15
- 239000003094 microcapsule Substances 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 9
- 229920001661 Chitosan Polymers 0.000 claims abstract description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 6
- 229910000077 silane Inorganic materials 0.000 claims abstract description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 4
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 3
- 239000002987 primer (paints) Substances 0.000 claims description 57
- 238000009408 flooring Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000002367 halogens Chemical class 0.000 claims 1
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 68
- 239000000843 powder Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
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- 239000006229 carbon black Substances 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- DAFHKNAQFPVRKR-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)C DAFHKNAQFPVRKR-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
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- 239000002262 Schiff base Substances 0.000 description 1
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- 238000010521 absorption reaction Methods 0.000 description 1
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- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 230000036528 appetite Effects 0.000 description 1
- 235000019789 appetite Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 201000008937 atopic dermatitis Diseases 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
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- 210000004904 fingernail bed Anatomy 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 206010022437 insomnia Diseases 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Classifications
-
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
-
- 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
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- 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
- B05D7/58—No clear coat specified
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a wood floor coated with aldehyde-removing UV curing coating, wherein the surface of the wood floor is coated with twice aldehyde-removing UV curing coating, and the aldehyde-removing UV curing coating contains 3-20% of modified fumed silica and 5-10% of aldehyde-removing auxiliary agent by weight; wherein, the modified gas phase SiO2 is obtained by hydrolyzing and condensing halosilane at high temperature in oxyhydrogen flame and then modifying and grafting silane or siloxane; the aldehyde-removing auxiliary agent is a solid particle formed by embedding and sealing a solid acid colloid in the chitosan microcapsule, wherein the solid acid colloid comprises one or a mixture of two of SiO2-Al2O3 colloid or B2O3-Al2O3 colloid. The formaldehyde-removing UV curing coating coated wood floor can adsorb and decompose formaldehyde, is simple in manufacturing process, can meet the requirements of different glossiness, is strong in product environmental protection performance, and can be suitable for stably improving the home environment for a long time.
Description
Technical Field
The invention relates to an aldehyde-removing wood floor, in particular to a wood floor coated with an aldehyde-removing UV curing coating.
Background
The solid wood composite floor is formed by laminating the boards of different tree species in a staggered manner, overcomes the defect of one-way same property of the solid wood floor, has small dry shrinkage and wet expansion rate and better dimensional stability, keeps the natural wood grains and comfortable foot feel of the solid wood floor, has the advantages of strengthening the stability of the floor and the attractiveness of the solid wood floor, and has environmental protection advantages. However, in the prior art, in the process of manufacturing the solid wood composite floor, the solid wood composite floor contains a large amount of formaldehyde due to the use of some chemical agents such as adhesives. The formaldehyde molecule contains aldehyde group, is an important organic raw material, and is colorless irritant gas with strong odor. Frequent inhalation of a small amount of formaldehyde can cause chronic poisoning, mucosal congestion, skin irritation, allergic dermatitis, nail keratosis and fragility, nail bed toe pain, and the like. The general symptoms comprise headache, hypodynamia, poor appetite, palpitation, insomnia, weight loss, vegetative nerve disturbance and the like. Because of the limits of technology and materials, the use of raw materials containing formaldehyde components cannot be completely forbidden in the process of manufacturing indoor furniture and decoration at present, and the harm of formaldehyde cannot be removed from the source, so that the efficient and environment-friendly indoor formaldehyde removing material has good application prospect. Because the use of formaldehyde cannot be comprehensively limited, the elimination and reduction of formaldehyde hazards are urgent.
Disclosure of Invention
The invention aims to provide a wood floor coated with aldehyde-removing UV curing coating.
According to one aspect of the invention, the invention provides an aldehyde-removing UV curing coating coated wood floor, wherein the surface of the wood floor is coated with the aldehyde-removing UV curing coating twice, and the aldehyde-removing UV curing coating contains 3-20% of modified fumed silica and 5-10% of an aldehyde-removing auxiliary agent by weight;
wherein, the modified gas phase SiO2 is obtained by hydrolyzing and condensing halosilane at high temperature in oxyhydrogen flame and then modifying and grafting silane or siloxane;
the aldehyde-removing auxiliary agent is a solid particle formed by embedding and sealing a solid acid colloid in the chitosan microcapsule, wherein the solid acid colloid comprises one or a mixture of two of SiO2-Al2O3 colloid or B2O3-Al2O3 colloid.
When the chitosan is introduced into the solid acid colloid matrix, no chemical change occurs, and chitosan molecules are redistributed and assembled in the solid acid colloid network through the chemical treatment process to form a more compact network structure and generate a richer void structure, and the surface area and the mesopore volume of the treated microcapsule are very large, so that the microcapsule is very easy to absorb gaseous formaldehyde. The aldehyde-removing auxiliary agent has a uniform microspherical shape. The test of gaseous formaldehyde adsorption shows that the adsorption capacity of the treated microcapsules is very high and is far greater than that of coconut shell activated carbon with the same dosage. Under the catalysis of the solid acid colloid, azomethine and Schiff base are formed between formaldehyde molecules in the microcapsule and primary amine in the chitosan, and formaldehyde is decomposed into water and carbon dioxide under the action of oxygen in the air.
In the preparation process of the formaldehyde-removing UV curing coating, due to the requirements of different glossiness of the product, matte powder such as white carbon black is generally required to be added into the coating. In the actual use process, the influence of the addition of the common matte powder such as white carbon black on the aldehyde removal auxiliary agent is found to be very obvious. The aldehyde removing auxiliary agent has normal aldehyde removing performance in the highlight wood floor with less adding proportion of the matte powder, and the aldehyde removing auxiliary agent has obviously reduced aldehyde removing performance in the matte wood floor with more adding proportion of the matte powder. The reason for this may be that the matte powder destroys the solid acid colloid and the microcapsule shell, resulting in a decrease in the effect of the aldehyde-removing aid.
Modified gas-phase SiO obtained by silane or siloxane modified grafting2The physical and chemical properties and the like are very stable, the solid acid colloid and the microcapsule shell cannot be damaged, and the addition amount of the solid acid colloid has no obvious influence on the aldehyde removal performance of the aldehyde removal auxiliary agent. Therefore, wood floors with different gloss degrees can have very excellent formaldehyde removing effect.
The coating weight of the formaldehyde-removing UV curing coating applied twice is the same and is 3-8 g/square meter.
In some embodiments, when the first aldehyde-removing UV curing coating is coated, the ultraviolet energy is 80-100 mj, and the irradiation time is 1-2 seconds;
when the second time of coating the formaldehyde-removing UV curing coating, the ultraviolet energy is 300-400 mj, and the irradiation time is 3-4 seconds.
Two overlapped UV curing coatings can be formed by two times of coating, the ultraviolet energy is relatively low during the first time of coating, the polymerization core is few during curing, the polymerization chain is long, and a compact curing coating is convenient to form; and the ultraviolet energy is relatively high during the second coating, the polymerization core is more during curing, the polymerization chain is broken, and a porous cured coating is convenient to form.
The compact coating can play a role in sealing, and can block and remove trace formaldehyde volatilized by the wood floor.
The porous coating can greatly improve the absorption efficiency of formaldehyde in the indoor environment, thereby improving the formaldehyde removal effect.
In some embodiments, the wood flooring is subjected to a base treatment before the first application of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) the coating weight of the UV putty coating is 20-30 g/square meter;
(4) sanding the primer coating, wherein the coating weight is 15-25g per square meter;
(5) the coating weight of the UV putty coating is 20-30 g/square meter;
(6) sanding the primer coating, wherein the coating weight is 15-25g per square meter;
(7) hardening the primer coating, wherein the coating weight is 10-15g per square meter;
(8) the coating weight of the wear-resistant primer coating is 10-15g per square meter;
(9) the sanding primer coating has the coating weight of 10-15 g/square meter.
In some embodiments, the wood flooring is subjected to a base treatment before the first application of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(4) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(5) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(6) hardening the primer coating, wherein the coating weight is 10-15g per square meter;
(7) the coating weight of the wear-resistant primer coating is 10-15g per square meter;
(8) the sanding primer coating has the coating weight of 10-20g per square meter.
In some embodiments, the wood flooring is subjected to a base treatment before the first application of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(4) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(5) hardening the primer coating, wherein the coating weight is 10-15g per square meter;
(6) the coating weight of the wear-resistant primer coating is 10-15g per square meter;
(7) the sanding primer coating has the coating weight of 10-15 g/square meter.
In some embodiments, the wood flooring is subjected to a base treatment before the first application of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) the elastic wear-resistant primer coating has the coating weight of 10-15g per square meter;
(4) the elastic wear-resistant primer coating has the coating weight of 10-15g per square meter;
(5) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(6) the coating weight of the matte primer coating is 10-15 g/square meter.
Detailed Description
The present invention is described in further detail below.
The types of bangford and quenford coatings used in the following examples are series of coatings sold by bangford new materials technology ltd, hannan and quenford specialty coatings ltd, respectively. The white carbon black is common gas phase silicon dioxide powder sold in the market. Modified fumed silica and an aldehyde-removing aid are supplied by texanol coating (shanghai) ltd.
Example 1
Wood floor substrates A-D were prepared according to the coating sequence in Table 1.
Example 2
Aldehyde-removing UV-curable coatings were prepared according to the components in Table 2, wherein the 20 ℃ matte resin ratio and the 60 ℃ matte resin model were each Jianfu 651344.
During the preparation, 20-degree matte resin and 60-degree highlight resin are mixed according to the corresponding weight ratio to obtain mixed resin, and then the matte powder and the modified gas-phase SiO in the corresponding proportions are respectively added according to the weight of the mixed resin2And an aldehyde-removing aid.
And (3) taking the substrate C, and respectively coating the surface of the substrate C twice by using the prepared formaldehyde-removing UV curing coating.
Wherein, when the formaldehyde-removing UV curing coating is coated for the first time, the coating weight is 5-6 g/square meter, the ultraviolet energy is 80-100 mj, and the irradiation time is 1-2 seconds;
when the formaldehyde-removing UV curing coating is coated for the second time, the coating weight is 5-6 g/square meter, the ultraviolet energy is 300-400 mj, and the irradiation time is 3-4 seconds.
According to the method, aldehyde-removing wood floors E-L are respectively manufactured.
TABLE 2 Formaldehyde-removing UV-curing coating proportioning table
Example 3
Preparing the aldehyde-removing UV curing coating, wherein the proportion of the 20-degree matte resin and the proportion of the 60-degree matte resin are respectively 64 percent and 36 percent, and the proportion of the modified gas-phase SiO2 and the aldehyde-removing auxiliary agent are respectively 13 percent and 5 percent.
And (3) taking the substrates A, B and D, and respectively coating the substrates twice by using the aldehyde-removing UV curing coating according to the table 3 to prepare aldehyde-removing wood floors M, N and P.
TABLE 2 coating weights and curing conditions for aldehyde-removing UV-curable coatings
Detection and evaluation of aldehyde removal effect
The test steps are as follows:
1. eleven identical seal boxes are taken and respectively marked as seal boxes 1-11.
2. 2ml of a 37% formaldehyde solution was dropped into each sealed box, and the same formaldehyde tester was placed into the sealed boxes at the same time.
3. After the formaldehyde solution in each sealing box is released, the formaldehyde tester in each sealing box can display that the formaldehyde concentration is close to 7mg/m3。
4. Each sealing box:
putting the aldehyde-removing wood floor E prepared in the embodiment 2 in the sealing box 1;
placing the aldehyde-removing wood floor F prepared in the embodiment 2 of the invention into a sealing box 2;
putting the aldehyde-removing wood floor G prepared in the embodiment 2 in the sealing box 3;
putting the aldehyde-removing wood floor H prepared in the embodiment 2 in the sealing box 4;
putting the aldehyde-removing wood floor I prepared in the embodiment 2 in a sealing box 5;
putting the aldehyde-removing wood floor J prepared in the embodiment 2 in the sealing box 6;
putting the aldehyde-removing wood floor K prepared in the embodiment 2 in the sealing box 7;
putting the aldehyde-removing wood floor L prepared in the embodiment 2 of the invention into a sealing box 8;
putting the aldehyde-removing wood floor M prepared in the embodiment 3 in the sealing box 9;
putting the aldehyde-removing wood floor N prepared in the embodiment 3 in the sealing box 10;
the aldehyde-removed wood flooring P prepared in example 3 of the present invention was placed in the sealing box 11.
The detection method refers to the purification performance of the coating material with indoor air purification function JC/T1074-2008.
The evaluation indexes are as follows:
the formaldehyde purification performance is more than or equal to 75 percent;
the durability of the formaldehyde purification effect is more than or equal to 60 percent.
The measurements are shown in Table 3.
TABLE 3 evaluation table for aldehyde-removing effect of aldehyde-removing wood floor
From the above table, it can be seen that:
(1) the influence of the addition of the common matte powder such as white carbon black on the aldehyde removal auxiliary agent is very obvious. The aldehyde removing auxiliary agent has normal aldehyde removing performance in the highlight wood floor with less adding proportion of the matte powder, and the aldehyde removing auxiliary agent has obviously reduced aldehyde removing performance in the matte wood floor with more adding proportion of the matte powder. The reason for this may be that the matte powder destroys the solid acid colloid and the microcapsule shell, resulting in a decrease in the effect of the aldehyde-removing aid.
(2) Modified gas-phase SiO obtained by silane or siloxane modified grafting2The physical and chemical properties and the like are very stable, the solid acid colloid and the microcapsule shell cannot be damaged, and the addition amount of the solid acid colloid has no obvious influence on the aldehyde removal performance of the aldehyde removal auxiliary agent. Therefore, the formaldehyde-removing wood floors with different gloss degrees have excellent formaldehyde-removing effect.
(3) The aldehyde-removing performance of the aldehyde-removing wood floor is related to the blending ratio of matte and highlight, the adding ratio of matte powder (fumed silica), the adding ratio of aldehyde-removing auxiliary agent, the process and coating amount of UV aldehyde-removing resin primer, the coating amount of UV aldehyde-removing resin finish, ultraviolet energy and the like.
(4) The modified gas-phase SiO in the technical scheme is adopted2The formaldehyde-removing effect of the formaldehyde-removing UV curing coating prepared by the formaldehyde-removing auxiliary agent after twice coating and manufacturing is higher than the related standard requirement, and the formaldehyde-removing UV curing coating has the effect of efficiently removing formaldehyde in the indoor environment.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The formaldehyde-removing UV curing coating coated wood floor is characterized in that the surface of the wood floor is coated with two times of formaldehyde-removing UV curing coatings, and the formaldehyde-removing UV curing coatings contain 3-20% of modified fumed silica and 5-10% of formaldehyde-removing auxiliary agent by weight;
wherein the modified gas-phase SiO2The halogen silane is obtained by high-temperature hydrolysis and condensation in oxyhydrogen flame and then modified grafting through silane or siloxane;
the aldehyde-removing auxiliary agent is a solid particle formed by embedding and sealing solid acid colloid in a chitosan microcapsule, wherein the solid acid colloid comprises SiO2-Al2O3Colloids or B2O3-Al2O3One or a mixture of two of the colloids;
the coating weight of the formaldehyde-removing UV curing coating for two times of coating is the same and is 3-8g per square meter;
when the formaldehyde-removing UV curing coating is coated for the first time, the ultraviolet energy is 80-100 mj, and the irradiation time is 1-2 seconds;
when the aldehyde-removing UV curing coating is coated for the second time, the ultraviolet energy is 300-400 mj, and the irradiation time is 3-4 seconds.
2. The aldehyde-removing UV-curable coating-coated wood flooring according to claim 1, wherein the wood flooring is subjected to a base treatment before the first coating of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) the coating weight of the UV putty coating is 20-30 g/square meter;
(4) sanding the primer coating, wherein the coating weight is 15-25g per square meter;
(5) the coating weight of the UV putty coating is 20-30 g/square meter;
(6) sanding the primer coating, wherein the coating weight is 15-25g per square meter;
(7) hardening the primer coating, wherein the coating weight is 10-15g per square meter;
(8) the coating weight of the wear-resistant primer coating is 10-15g per square meter;
(9) the sanding primer coating has the coating weight of 10-15 g/square meter.
3. The aldehyde-removing UV-curable coating-coated wood flooring according to claim 1, wherein the wood flooring is subjected to a base treatment before the first coating of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(4) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(5) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(6) hardening the primer coating, wherein the coating weight is 10-15g per square meter;
(7) the coating weight of the wear-resistant primer coating is 10-15g per square meter;
(8) the sanding primer coating has the coating weight of 10-20g per square meter.
4. The aldehyde-removing UV-curable coating-coated wood flooring according to claim 1, wherein the wood flooring is subjected to a base treatment before the first coating of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(4) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(5) hardening the primer coating, wherein the coating weight is 10-15g per square meter;
(6) the coating weight of the wear-resistant primer coating is 10-15g per square meter;
(7) the sanding primer coating has the coating weight of 10-15 g/square meter.
5. The aldehyde-removing UV-curable coating-coated wood flooring according to claim 1, wherein the wood flooring is subjected to a base treatment before the first coating of the aldehyde-removing UV-curable coating, and the base coating comprises:
(1) the coating weight of the water-based primer coating is 8-15 g/square meter;
(2) adhering a primer coating, wherein the coating weight is 10-20g per square meter;
(3) the elastic wear-resistant primer coating has the coating weight of 10-15g per square meter;
(4) the elastic wear-resistant primer coating has the coating weight of 10-15g per square meter;
(5) sanding the primer coating, wherein the coating weight is 15-20g per square meter;
(6) the coating weight of the matte primer coating is 10-15 g/square meter.
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