CN117445122A - High-brightness wood floor and production process thereof - Google Patents
High-brightness wood floor and production process thereof Download PDFInfo
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- CN117445122A CN117445122A CN202311420385.2A CN202311420385A CN117445122A CN 117445122 A CN117445122 A CN 117445122A CN 202311420385 A CN202311420385 A CN 202311420385A CN 117445122 A CN117445122 A CN 117445122A
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- wood floor
- curing agent
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- paper
- gloss
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- 239000002023 wood Substances 0.000 title claims abstract description 79
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 62
- 239000000123 paper Substances 0.000 claims abstract description 54
- 239000013638 trimer Substances 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000002966 varnish Substances 0.000 claims abstract description 22
- 238000007731 hot pressing Methods 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 238000005829 trimerization reaction Methods 0.000 claims abstract description 13
- 239000012024 dehydrating agents Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 9
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 6
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 6
- 229920000180 alkyd Polymers 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 31
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 17
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 229920000877 Melamine resin Polymers 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 10
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 10
- 238000007598 dipping method Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 10
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 5
- 239000013530 defoamer Substances 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 238000009408 flooring Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- ONMKQWPCMAOKQN-UHFFFAOYSA-N phthalic acid;urea Chemical compound NC(N)=O.OC(=O)C1=CC=CC=C1C(O)=O ONMKQWPCMAOKQN-UHFFFAOYSA-N 0.000 claims description 5
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 239000011094 fiberboard Substances 0.000 claims description 4
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 4
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011120 plywood Substances 0.000 claims description 2
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims 1
- 239000002518 antifoaming agent Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 abstract 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000003085 diluting agent Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 5
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 239000011527 polyurethane coating Substances 0.000 description 4
- 238000006683 Mannich reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000002243 cyclohexanonyl group Chemical group *C1(*)C(=O)C(*)(*)C(*)(*)C(*)(*)C1(*)* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
- E04F15/045—Layered panels only of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/12—Coating on the layer surface on paper layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/028—Paper layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/406—Bright, glossy, shiny surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a high-brightness wood floor and a production process thereof, belonging to the technical field of wood floor production, wherein the high-brightness wood floor is produced by coating high-brightness varnish on the surface of the wood floor, the wood floor is formed by laminating wood grain decorative paper, a substrate and balance paper in a hot-pressing way from top to bottom, and the high-brightness varnish is prepared from a component A and a component B, wherein the component A comprises alkyd resin, acrylic resin, a flatting agent, a defoaming agent, a drier and a solvent; the component B comprises the following components: TD I trimer curing agent, bright trimer curing agent, solvent and dehydrating agent. According to the invention, the trimerization reaction of TD I in TD I-80 is promoted by using a Mannich base catalyst, so that the TD I trimer curing agent with low free TDI monomer is finally prepared, and meanwhile, the compatibility of the TD I trimer curing agent and resin is improved by using n-decanol to modify the TD I trimer curing agent, so that the environment-friendly high-brightness wood floor is finally prepared, and the high-brightness effect is excellent.
Description
Technical Field
The invention belongs to the technical field of wood floor production, and particularly relates to a high-brightness wood floor and a production process thereof.
Background
Conventional wood flooring generally comprises a four-layer structure, i.e., a balance layer, a base material layer, a decorative layer, and a surface wear layer, and the surface brightness of such flooring is poor, and it is difficult to achieve a high-brightness effect like paint, so that aesthetic demands of some consumers cannot be satisfied. The three-layer structure wood floor, namely the balance layer, the base material layer and the decorative layer with the surface containing abrasive materials, has the advantage that the surface glossiness is improved, but the high-strength wear-resisting effect is difficult to achieve. In the prior art, a layer of wood paint is usually sprayed on the surface of the three-layer reinforced wood floor, wherein the two-component polyurethane paint is one of the most main wood paint varieties in the market in China at present.
After the two-component polyurethane coating is arranged on the surface of a wood substrate, the two-component polyurethane coating has good decorative performance, and a formed paint film has good transparency, fullness and brightness effects, but free isocyanate monomers in the polyurethane coating have the risk of cancerogenic to human bodies, influence the physical health of constructors to a certain extent, and pollute the coating environment.
Disclosure of Invention
The invention aims to provide a high-brightness wood floor and a production process thereof, wherein the type, the proportion and the preparation method of a curing agent in a double-component polyurethane coating are improved, the content of free TDI monomer in the coating is reduced, and finally the environment-friendly high-brightness wood floor is produced.
The aim of the invention can be achieved by the following technical scheme:
a high-gloss wood floor is produced by coating high-gloss varnish on the surface of the wood floor;
the wood floor is formed by laminating wood grain decorative paper, a base plate and balance paper from top to bottom in a hot pressing mode;
the highlight varnish consists of a component A and a component B according to the mass ratio of 1:0.7, uniformly mixing, and diluting to prepare the compound;
the component A comprises the following raw materials in parts by weight: 60-80 parts of alkyd resin, 20-30 parts of acrylic resin, 0.5 part of flatting agent, 0.3 part of defoamer, 0.2 part of drier and 9 parts of solvent;
the component B comprises the following raw materials in parts by weight: 45 parts of TDI trimer curing agent, 10 parts of light trimer curing agent, 45 parts of solvent and 0.2 part of dehydrating agent.
Further, the solvent in the component A is one or more of cyclohexanone, n-butyl acetate and propylene glycol methyl ether acetate which are mixed according to any proportion; the solvent in the component B is dimethylbenzene and n-butyl acetate which are mixed according to any proportion.
Further, the preparation process of the TDI trimer curing agent comprises the following steps:
firstly adding TDI-80 into n-sunflower alcohol, heating to 40 ℃, stirring and reacting for 30min, adding a Mannich base catalyst into the mixture for trimerization reaction, wherein the trimerization reaction temperature is 55 ℃, detecting the NC0 content in the material after the reaction is carried out for 10h, adding phosphoric acid into the material to terminate the reaction when the NC0 content is reduced to 16%, evaporating and removing residual TDI monomer under the condition of 180 ℃ and 10mbar after the reaction is terminated, and dissolving the residual material into ethyl acetate to obtain the TDI trimer curing agent.
Further, the weight ratio of the n-sunflower alcohol, the TDI-80, the Mannich base catalyst and the phosphoric acid is 55-57:2.5-3.0:0.1-0.15:0.015-0.02.
Further, the Mannich base catalyst is prepared from phenol, formaldehyde and dimethylamine through Mannich reaction, and the structure of the Mannich base catalyst is as follows:
further, the TDI trimer curing agent has the solid content of 51% -53%, the NCO content of 7.2% -7.6%, the viscosity of 250cp-260cp at the temperature of 23 ℃ and the free TDI content of less than 0.3%.
Further, the production process of the wood floor comprises the following steps:
a1, adding a curing agent into melamine formaldehyde resin, uniformly stirring to obtain a glue solution, uniformly immersing wood grain paper twice, controlling the glue dipping amount to be 160% -180%, and immediately placing the wood grain paper in an oven at 85 ℃ for drying for 240 seconds after no glue dripping, so as to obtain wood grain decorative paper;
a2, immersing the balance base paper into the glue solution in the step A1, controlling the glue dipping amount to be 100% -120%, and immediately placing the balance base paper in an oven at 85 ℃ for drying for 240 seconds after glue dripping is avoided to obtain the balance paper;
a3, fixing the hot-pressing template on an upper pressing table of a hot press, fixing the balance paper hot-pressing template on a lower pressing table of the hot press, placing a substrate on the balance paper, sending the substrate to the hot press with the hot-pressing temperature of 180-200 ℃, closing the hot press, releasing pressure after pressure maintaining for 3-5 seconds, laying wood grain decorative paper on a blank surface of a substrate, controlling the temperature of 180-200 ℃ and the pressure to 3-8MPa, releasing pressure after pressure maintaining for 25-40 seconds, discharging the board, and cutting and grooving to obtain the wood floor.
Further, the substrate is one of a high-density fiberboard, a shaving board, a plywood, a solid wood veneer, a glass fiber board, a resin board and an inorganic board.
Further, in the step A1, the mass ratio of the melamine formaldehyde resin to the curing agent is 100:5-6, wherein the solid content of the melamine formaldehyde resin is 52-55%.
Further, the curing agent in the step A1 is one or more of urea phthalic acid, triethanolamine and hexamethylenetetramine, which are mixed according to any proportion.
The invention has the beneficial effects that:
in the preparation of the TDI trimer curing agent, the Li Yongman Nishi base catalyst promotes the trimerization reaction of TDI in TDI-80, the TDI trimer curing agent with low free TDI monomer is finally prepared by strictly controlling the temperature and the reaction process (controlling the reaction termination time) of the trimerization reaction, meanwhile, the TDI trimer curing agent has higher polarity and can only be dissolved in some strong polar solvents.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Mannich base catalyst:
the Mannich base catalyst is prepared from phenol, formaldehyde and dimethylamine through Mannich reaction, and the structure of the Mannich base catalyst is as follows:
example 2
Preparing a TDI trimer curing agent:
firstly adding TDI-80 into n-sunflower alcohol, heating to 40 ℃, stirring and reacting for 30min, adding the Mannich base catalyst in the embodiment 1 into the n-sunflower alcohol to perform trimerization reaction, wherein the trimerization reaction temperature is 55 ℃, detecting NC0 content in the material after the reaction for 10h, adding phosphoric acid into the material to stop the reaction when the NC0 content is reduced to 16%, evaporating to remove residual TDI monomer under the condition of 180 ℃ and 10mbar after the reaction is ended, dissolving the residual material into ethyl acetate to obtain TDI trimer curing agent, wherein the solid content of the TDI trimer curing agent is 53%, the NCO content is 7.6%, the viscosity is 260cp at the temperature of 23 ℃, and the free TDI content is 0.28%; wherein, the weight ratio of the n-sunflower alcohol, the TDI-80, the Mannich base catalyst and the phosphoric acid is 55:2.5:0.1:0.015.
example 3
Preparing a TDI trimer curing agent:
firstly adding TDI-80 into n-sunflower alcohol, heating to 40 ℃, stirring and reacting for 30min, adding the Mannich base catalyst in the embodiment 1 into the n-sunflower alcohol to perform trimerization reaction, wherein the trimerization reaction temperature is 55 ℃, detecting NC0 content in the material after the reaction for 10h, adding phosphoric acid into the material to stop the reaction when the NC0 content is reduced to 16%, evaporating to remove residual TDI monomer under the condition of 180 ℃ and 10mbar after the reaction is ended, dissolving the residual material into ethyl acetate to obtain TDI trimer curing agent, wherein the solid content of the TDI trimer curing agent is 52%, the NCO content is 7.5%, the viscosity is 250cp at the temperature of 23 ℃, and the free TDI content is 0.22%; wherein, the weight ratio of the n-sunflower alcohol, the TDI-80, the Mannich base catalyst and the phosphoric acid is 56:2.8:0.12:0.018.
example 4
Preparing a TDI trimer curing agent:
firstly adding TDI-80 into n-sunflower alcohol, heating to 40 ℃, stirring and reacting for 30min, adding the Mannich base catalyst in the embodiment 1 into the n-sunflower alcohol to perform trimerization reaction, wherein the trimerization reaction temperature is 55 ℃, detecting NC0 content in the material after the reaction for 10h, adding phosphoric acid into the material to stop the reaction when the NC0 content is reduced to 16%, evaporating to remove residual TDI monomer under the condition of 180 ℃ and 10mbar after the reaction is ended, dissolving the residual material into ethyl acetate to obtain TDI trimer curing agent, wherein the solid content of the TDI trimer curing agent is 51%, the NCO content is 7.2%, the viscosity is 255cp at the temperature of 23 ℃, and the free TDI content is 0.23%; wherein, the weight ratio of the n-sunflower alcohol, the TDI-80, the Mannich base catalyst and the phosphoric acid is 57:3.0:0.15:0.02.
example 5
Preparing a highlight varnish:
the highlight varnish consists of a component A and a component B according to the mass ratio of 1:0.7, and then diluting to obtain the product, wherein the diluent is commercially available NY-200 diluent, and the viscosity is 12s (measured by coating-2 cups);
wherein the component A comprises the following raw materials in parts by weight: 60 parts of alkyd resin, 20 parts of acrylic resin, 0.5 part of flatting agent, 0.3 part of defoamer, 0.2 part of drier and 9 parts of solvent, wherein the solvent is cyclohexanone and n-butyl acetate according to the following ratio of 1:1, and mixing.
Wherein the component B comprises the following raw materials in parts by weight: 45 parts of TDI trimer curing agent prepared in example 2, 10 parts of gloss trimer curing agent, 45 parts of solvent, 0.2 part of dehydrating agent.
Leveling agents are purchased from Hangzhou, inc. of chemical industry and trade;
the defoaming agent is GP-330 type defoaming agent;
the drier is WCAT-WP01 drier;
the gloss trimer curing agent was from guangdian bus chemical company;
the model of the dehydrating agent is GHKY-1001 type dehydrating agent.
Example 6
Preparing a highlight varnish:
the highlight varnish consists of a component A and a component B according to the mass ratio of 1:0.7, and then diluting to obtain the product, wherein the diluent is commercially available NY-200 diluent, and the viscosity is 12s (measured by coating-2 cups);
wherein the component A comprises the following raw materials in parts by weight: 70 parts of alkyd resin, 25 parts of acrylic resin, 0.5 part of flatting agent, 0.3 part of defoamer, 0.2 part of drier and 9 parts of solvent;
wherein the component B comprises the following raw materials in parts by weight: 45 parts of TDI trimer curing agent prepared in example 3, 10 parts of gloss trimer curing agent, 45 parts of solvent, 0.2 part of dehydrating agent.
Leveling agents are purchased from Hangzhou, inc. of chemical industry and trade;
the defoaming agent is GP-330 type defoaming agent;
the drier is WCAT-WP01 drier;
the gloss trimer curing agent was from guangdian bus chemical company;
the model of the dehydrating agent is GHKY-1001 type dehydrating agent.
Example 7
Preparing a highlight varnish:
the highlight varnish consists of a component A and a component B according to the mass ratio of 1:0.7, and then diluting to obtain the product, wherein the diluent is commercially available NY-200 diluent, and the viscosity is 12s (measured by coating-2 cups);
wherein the component A comprises the following raw materials in parts by weight: 80 parts of alkyd resin, 30 parts of acrylic resin, 0.5 part of flatting agent, 0.3 part of defoamer, 0.2 part of drier and 9 parts of solvent;
wherein the component B comprises the following raw materials in parts by weight: 45 parts of TDI trimer curing agent prepared in example 4, 10 parts of gloss trimer curing agent, 45 parts of solvent, 0.2 part of dehydrating agent.
Leveling agents are purchased from Hangzhou, inc. of chemical industry and trade;
the defoaming agent is GP-330 type defoaming agent;
the drier is WCAT-WP01 drier;
the gloss trimer curing agent was from guangdian bus chemical company;
the model of the dehydrating agent is GHKY-1001 type dehydrating agent.
Example 8
Production of high-brightness wooden floor
The high-gloss wood floor is produced by coating high-gloss varnish on the surface of the wood floor;
the wood floor is formed by laminating wood grain decorative paper, a base plate and balance paper from top to bottom in a hot pressing way;
the highlighting varnish was the highlighting varnish prepared in example 5.
The substrate is a high-density fiberboard;
the production process of the wood floor comprises the following steps:
a1, adding a curing agent into melamine formaldehyde resin, wherein the mass ratio of the melamine formaldehyde resin to the curing agent is 100:5, uniformly stirring to obtain glue solution, uniformly immersing wood grain paper twice, controlling the glue dipping amount to 160%, and immediately drying in an oven at 85 ℃ for 240s after no glue dripping to obtain wood grain decorative paper; wherein the curing agent is urea phthalic acid, triethanolamine and hexamethylenetetramine according to the mass ratio of 1:1:1, and mixing.
A2, immersing the balance base paper into the glue solution in the step A1, controlling the glue dipping amount to 100%, and immediately placing the glue in an oven at 85 ℃ for drying for 240s after the glue is not dropped, so as to obtain the balance paper;
a3, fixing the hot-pressing template on an upper pressing table of a hot press, fixing the balance paper hot-pressing template on a lower pressing table of the hot press, placing a substrate on the balance paper, sending the substrate to the hot press with the hot-pressing temperature of 180 ℃, closing the hot press, pressing for 3MPs, releasing pressure after pressure maintaining for 3s, laying wood grain decorative paper on a blank face of the substrate, controlling the temperature of 180 ℃, releasing pressure after pressure maintaining for 25s, discharging the board, and cutting and grooving to obtain the wood floor.
Example 9
Production of high-brightness wooden floor
The high-gloss wood floor is produced by coating high-gloss varnish on the surface of the wood floor;
the wood floor is formed by laminating wood grain decorative paper, a base plate and balance paper from top to bottom in a hot pressing way;
the highlighting varnish was the highlighting varnish prepared in example 6.
The substrate is a shaving board;
the production process of the wood floor comprises the following steps:
a1, adding a curing agent into melamine formaldehyde resin, wherein the mass ratio of the melamine formaldehyde resin to the curing agent is 100:5.5, uniformly stirring to obtain glue solution, uniformly immersing wood grain paper twice, controlling the glue dipping amount to 170%, and immediately drying in an oven at 85 ℃ for 240s after no glue dripping to obtain wood grain decorative paper; wherein the curing agent is urea phthalic acid and hexamethylenetetramine according to the mass ratio of 1:1, and mixing.
A2, immersing the balance base paper into the glue solution in the step A1, controlling the glue dipping amount to be 110%, and immediately placing the balance base paper in an oven at 85 ℃ for drying for 240s after the glue is not dropped, so as to obtain the balance paper;
a3, fixing the hot-pressing template on an upper pressing table of a hot press, fixing the balance paper hot-pressing template on a lower pressing table of the hot press, placing a substrate on the balance paper, sending the substrate to the hot press with the hot-pressing temperature of 190 ℃, closing the hot press, pressure-releasing after pressure-maintaining for 4 seconds, laying wood grain decorative paper on a blank face of the substrate, controlling the temperature of 190 ℃, pressure-releasing after pressure-maintaining for 35 seconds, discharging the board, and cutting and grooving to obtain the wood floor.
Example 10
Production of high-brightness wooden floor
The high-gloss wood floor is produced by coating high-gloss varnish on the surface of the wood floor;
the wood floor is formed by laminating wood grain decorative paper, a base plate and balance paper from top to bottom in a hot pressing way;
the highlighting varnish was the highlighting varnish prepared in example 7.
The substrate is a high-density fiberboard;
the production process of the wood floor comprises the following steps:
a1, adding a curing agent into melamine formaldehyde resin, wherein the mass ratio of the melamine formaldehyde resin to the curing agent is 100:6, uniformly stirring to obtain glue solution, uniformly immersing wood grain paper twice, controlling the glue dipping amount to 180%, and immediately placing the wood grain paper in an oven at 85 ℃ for drying for 240s after no glue dripping, so as to obtain wood grain decorative paper; wherein the curing agent is urea phthalic acid and triethanolamine according to the mass ratio of 1:1, and mixing.
A2, immersing the balance base paper into the glue solution in the step A1, controlling the glue dipping amount to be 120%, and immediately placing the balance base paper in an oven at 85 ℃ for drying for 240s after the glue is not dropped, so as to obtain the balance paper;
a3, fixing the hot-pressing template on an upper pressing table of a hot press, fixing the balance paper hot-pressing template on a lower pressing table of the hot press, placing the substrate on the balance paper, sending the substrate into the hot press with the hot-pressing temperature of 200 ℃, closing the hot press, pressing for 8MPs, releasing pressure after pressure maintaining for 5 seconds, laying wood grain decorative paper on a blank face of the substrate, controlling the temperature of 200 ℃, controlling the pressure for 8MPa, releasing pressure after pressure maintaining for 40 seconds, discharging the board, and cutting and grooving to obtain the wood floor.
The performance test was performed on the high gloss varnish of the Gao Liangmu floor produced in example 8-example 10, and the test procedure was as follows, and the test results are shown in table 1:
viscosity: measuring the viscosity of the resin by using a rotational viscometer, and measuring the construction viscosity by using a coating 4 cup;
gloss level: measured as GBT 9754-2007;
adhesion force: measured according to GB/T1720-1979;
pencil hardness: measured as GBT 6739-2006;
impact strength: measured according to GBT 1732-1993.
TABLE 1
As can be seen from Table 1, the highlight coating film prepared by the invention has excellent workability, usability and glossiness, meanwhile, the TDI trimer curing agent prepared by the invention has the solid content of 51% -53%, the NCO content of 7.2% -7.6%, the viscosity of 250cp-260cp at 23 ℃, the free TDI content of less than 0.3% and the free TDI content of extremely low, and the prepared Gao Liangmu floor has the advantage of environmental friendliness.
It should be noted that in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The production process of the high-gloss wood floor is characterized in that the high-gloss wood floor is produced by coating high-gloss varnish on the surface of the wood floor;
the wood floor is formed by laminating wood grain decorative paper, a base plate and balance paper from top to bottom in a hot pressing mode;
the highlight varnish consists of a component A and a component B according to the mass ratio of 1:0.7, uniformly mixing, and diluting to prepare the compound;
the component A comprises the following raw materials in parts by weight: 60-80 parts of alkyd resin, 20-30 parts of acrylic resin, 0.5 part of flatting agent, 0.3 part of defoamer, 0.2 part of drier and 9 parts of solvent;
the component B comprises the following raw materials in parts by weight: 45 parts of TD I trimer curing agent, 10 parts of light trimer curing agent, 45 parts of solvent and 0.2 part of dehydrating agent.
2. The production process of the high-brightness wood floor according to claim 1, wherein the solvent in the component A is one or more of cyclohexanone, n-butyl acetate and propylene glycol methyl ether acetate mixed according to any proportion; the solvent in the component B is dimethylbenzene and n-butyl acetate which are mixed according to any proportion.
3. The process for producing a high-gloss wood floor according to claim 1, wherein the preparation process of the TD I trimer curing agent comprises the following steps:
firstly adding TDI-80 into n-sunflower alcohol, heating to 40 ℃, stirring and reacting for 30min, adding a Mannich base catalyst into the mixture for trimerization reaction, wherein the trimerization reaction temperature is 55 ℃, detecting the NC0 content in the material after the reaction is carried out for 10h, adding phosphoric acid into the material to terminate the reaction when the NC0 content is reduced to 16%, evaporating and removing residual TD I monomers under the condition of 180 ℃ and 10mbar after the reaction is terminated, and dissolving the residual material into ethyl acetate to obtain the TD I trimer curing agent.
4. The process for producing a high-gloss wood floor according to claim 3, wherein the weight ratio of n-sunflower alcohol, TD I-80, mannich base catalyst and phosphoric acid is 55-57:2.5-3.0:0.1-0.15:0.015-0.02.
5. The process for producing a high-gloss wood floor according to claim 3, wherein the solid content of the TD I trimer curing agent is 51% -53%, the NCO content is 7.2% -7.6%, the viscosity at 23 ℃ is 250cp-260cp, and the free TD I content is lower than 0.3%.
6. The process for producing a high-gloss wood flooring according to claim 1, wherein the process for producing a wood flooring comprises the steps of:
a1, adding a curing agent into melamine formaldehyde resin, uniformly stirring to obtain a glue solution, uniformly immersing wood grain paper twice, controlling the glue dipping amount to be 160% -180%, and immediately placing the wood grain paper in an oven at 85 ℃ for drying for 240 seconds after no glue dripping, so as to obtain wood grain decorative paper;
a2, immersing the balance base paper into the glue solution in the step A1, controlling the glue dipping amount to be 100% -120%, and immediately placing the balance base paper in an oven at 85 ℃ for drying for 240 seconds after glue dripping is avoided to obtain the balance paper;
a3, fixing the hot-pressing template on an upper pressing table of a hot press, fixing the balance paper hot-pressing template on a lower pressing table of the hot press, placing a substrate on the balance paper, sending the substrate to the hot press with the hot-pressing temperature of 180-200 ℃, closing the hot press, releasing pressure after pressure maintaining for 3-5 seconds, laying wood grain decorative paper on a blank surface of a substrate, controlling the temperature of 180-200 ℃ and the pressure to 3-8MPa, releasing pressure after pressure maintaining for 25-40 seconds, discharging the board, and cutting and grooving to obtain the wood floor.
7. The process for producing a high-gloss wood floor according to claim 1, wherein the substrate is one of a high-density fiberboard, a particle board, a plywood, a solid wood veneer, a glass fiber board, a resin board, and an inorganic board.
8. The process for producing a high-gloss wood floor according to claim 6, wherein the mass ratio of the melamine formaldehyde resin to the curing agent in the step A1 is 100:5-6, wherein the solid content of the melamine formaldehyde resin is 52-55%.
9. The process for producing a high-gloss wood floor according to claim 6, wherein the curing agent in the step A1 is one or more of urea phthalic acid, triethanolamine and hexamethylenetetramine mixed in an arbitrary ratio.
10. A high gloss wood flooring produced by the production process of any one of claims 1 to 9.
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| CN202311420385.2A CN117445122A (en) | 2023-10-30 | 2023-10-30 | High-brightness wood floor and production process thereof |
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| CN202311420385.2A CN117445122A (en) | 2023-10-30 | 2023-10-30 | High-brightness wood floor and production process thereof |
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