CN114181606B - High-moisture-resistance environment-friendly multi-element composite floor and production process thereof - Google Patents
High-moisture-resistance environment-friendly multi-element composite floor and production process thereof Download PDFInfo
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- CN114181606B CN114181606B CN202111445001.3A CN202111445001A CN114181606B CN 114181606 B CN114181606 B CN 114181606B CN 202111445001 A CN202111445001 A CN 202111445001A CN 114181606 B CN114181606 B CN 114181606B
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- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000002023 wood Substances 0.000 claims abstract description 39
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000003973 paint Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 230000007613 environmental effect Effects 0.000 claims abstract description 11
- 241000219000 Populus Species 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- 239000002159 nanocrystal Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 32
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 27
- 229920002678 cellulose Polymers 0.000 claims description 24
- 239000001913 cellulose Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 22
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 21
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 21
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 19
- 229920000728 polyester Polymers 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 17
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- JVYDLYGCSIHCMR-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)butanoic acid Chemical compound CCC(CO)(CO)C(O)=O JVYDLYGCSIHCMR-UHFFFAOYSA-N 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229920002201 Oxidized cellulose Polymers 0.000 claims description 10
- 229940107304 oxidized cellulose Drugs 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 150000002009 diols Chemical class 0.000 claims description 8
- 239000004922 lacquer Substances 0.000 claims description 7
- 238000009408 flooring Methods 0.000 claims description 6
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- LGZDNJBUAAXEMN-UHFFFAOYSA-N 1,2,2,3-tetramethyl-1-oxidopiperidin-1-ium Chemical compound CC1CCC[N+](C)([O-])C1(C)C LGZDNJBUAAXEMN-UHFFFAOYSA-N 0.000 claims description 2
- 238000003760 magnetic stirring Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 238000004018 waxing Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000001165 hydrophobic group Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Floor Finish (AREA)
Abstract
The invention relates to a high-moisture-resistance environment-friendly multi-element composite floor and a production process thereof, and the high-moisture-resistance environment-friendly multi-element composite floor comprises a substrate layer, a decorative layer and a bottom plate layer, wherein the decorative layer is a wood paint layer and is waterproof wood paint coated on the surface of the substrate layer, and the bottom plate layer and the substrate layer are both poplar veneers; coating waterproof wood paint on the surface of one side of the base material layer to form a decorative layer, gluing the bottom plate layer on the surface of the other side of the base material layer by adopting environment-friendly MDI glue, and then coating wax on a notch formed by the base material layer and the bottom plate layer for sealing to prepare the moisture-proof environment-friendly multi-element composite floor; the wood paint can not release formaldehyde, meets the environmental protection requirement, and is finally sealed by waxing at the notch formed by the substrate layer and the bottom plate layer, a denser waterproof oil film is formed at the notch, and the waterproof performance of the notch is further improved.
Description
Technical Field
The invention belongs to the technical field of environment-friendly boards, and particularly relates to a high-moisture-resistance environment-friendly multi-element composite floor and a production process thereof.
Background
The laminate flooring is a green, environment-friendly, fashionable and changeable decorative floor material with a high-density wood fiber board as a base material, has the characteristics of warm, moist and comfortable wood board and touch feeling, and has excellent wear resistance, burning resistance, skid resistance, stain resistance, impact resistance and other performances.
The wood material is composed of cellulose, hemicellulose, lignin and the like, is rich in hydrophilic groups such as hydroxyl groups and the like, has extremely strong moisture absorption and absorption capacity, and thus, the board made of wood fiber as a raw material is easy to absorb water and deform. Moreover, when the external environment (temperature, humidity and the like) changes, the moisture content of the wood can be changed, so that the wood is dried, shrunk, swollen, warped and deformed, and the wood cannot be repaired after being damaged by water, the comfort level of the foot feel is reduced, the comfort and the attractive effect of the floor are seriously influenced, and the moisture and water resistance are always extremely difficult in the field of research and application of the wood floor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-moisture-resistance environment-friendly multi-element composite floor and a production process thereof.
The purpose of the invention can be realized by the following technical scheme:
the high-moisture-resistance environment-friendly multi-element composite floor comprises a substrate layer, a decorative layer and a bottom plate layer, wherein the decorative layer is a wood paint layer and is waterproof wood paint coated on the surface of the substrate layer, and the bottom plate layer and the substrate layer are both poplar veneers;
the wood paint layer is prepared by the following steps:
step S1, adding 4, 4' -diphenylmethane diisocyanate and dehydrated polyester diol into a reaction bottle, heating to 65 ℃, stirring at a constant speed and reacting for 20min, then adding dimethylolbutyric acid and dibutyltin dilaurate, heating to 85 ℃, carrying out heat preservation and reaction for 3h to obtain a prepolymer, then cooling to room temperature, adding triethylamine to adjust the pH value until the system is neutral, adding deionized water, stirring at a high speed for 1h to obtain an aqueous emulsion, and controlling the molar ratio of 4, 4 ' -diphenylmethane diisocyanate to polyester diol to be 2: 1, the weight sum of dimethylolbutyric acid 4, 4 ' -diphenylmethane diisocyanate and polyester diol to be 4.5-6%, and the weight sum of dibutyltin dilaurate to be 0.15-0.3% of the weight of 4, 4 ' -diphenylmethane diisocyanate;
in the step S1, 4, 4 '-diphenylmethane diisocyanate reacts with polyester dihydric alcohol, the 4, 4' -diphenylmethane diisocyanate is connected to two ends of the polyester dihydric alcohol, dibutyltin dilaurate is added to be used as an organic catalyst, dimethylolbutyric acid is used as a chain extender to prepare a prepolymer, the dimethylolbutyric acid is used as a hard segment and is connected into the prepolymer, and in order to prevent the content of the dimethylolbutyric acid from being too high and reduce the water resistance of the prepolymer, the content of the dimethylolbutyric acid is controlled to be 4.5-6%;
and step S2, adding the modified particles into the water-based emulsion, performing magnetic stirring for 5 hours, performing ultrasonic treatment for 2 hours, then coating the modified particles on the surface of the base material layer, leveling for 3 days at room temperature, and then performing vacuum drying for 24 hours at 75 ℃ to form a wood paint layer, wherein the amount of the modified particles is 10-12% of the weight of the water-based emulsion.
In the step S2, the modified particles are added, so that a strong hydrogen bond effect can be formed between the modified particles and the prepolymer, the crosslinking of the coating film is promoted, a three-dimensional network structure is formed, the penetration and diffusion of water can be effectively prevented, the acting force between the hydrophobic groups grafted on the modified particles and water is further weakened, the decorative layer is endowed with excellent waterproof performance, and the color of the decorative layer can be modified by adding pigments.
Further: the modified particle comprises the following steps:
step S11, dispersing the cellulose nanocrystals in deionized water to prepare a suspension, then adding a treatment solution, stirring at a high speed, dropwise adding a sodium hydroxide solution with the mass fraction of 10% to adjust the pH until the pH is 10, then slowly dropwise adding a sodium hypochlorite aqueous solution with the mass fraction of 15% to adjust the pH until the pH is 6.5-7, then adding ethanol to terminate the reaction, washing and centrifuging after the reaction is finished to prepare oxidized cellulose nanocrystals, and controlling the dosage ratio of the cellulose nanocrystals to the treatment solution to be 10 g: 40-50 mL;
and step S12, adding the oxidized cellulose nanocrystals into N, N-dimethylformamide, introducing nitrogen, adding dodecyl alcohol, adding dibutyltin dilaurate, heating to 65 ℃, uniformly stirring, reacting for 24 hours, washing, centrifuging after the reaction is finished, and drying in vacuum to obtain modified particles, wherein the weight ratio of the treated cellulose nanocrystals to the dodecyl alcohol is controlled to be 1: 2-3, and the using amount of dibutyltin dilaurate is 0.3-0.5% of the weight of the treated cellulose nanocrystals.
In the step S11, the cellulose nanocrystals are dispersed and then modified by the treatment solution, and after being oxidized by the treatment solution, the hydroxyl groups on the surface of the cellulose nanocrystals are oxidized into carboxyl groups, and then the carboxyl groups react with the added dodecyl alcohol to prepare modified particles, wherein the modified particles are the cellulose nanocrystals grafted with dodecyl alcohol, and the hydrophobicity of the surface of the modified particles is improved by the grafting of long-chain alkyl groups.
Further: the treatment liquid is prepared by mixing tetramethylpiperidine oxide, sodium bromide and deionized water according to the dosage ratio of 30.2 mg: 300-330 mg: 10 mL.
A production process of a high-moisture-resistance environment-friendly multi-element composite floor comprises the following steps:
waterproof wood lacquer of coating on substrate layer one side surface forms the decorative layer, later adopts environmental protection level MDI glue veneer bottom plate layer on substrate layer opposite side surface, later scribbles wax at the notch that substrate layer and bottom plate layer formed and seals, prepares out the polybasic laminate flooring of dampproofing environmental protection.
The invention has the beneficial effects that:
the multi-element composite floor comprises a substrate layer, a decorative layer and a bottom plate layer, wherein the decorative layer is a wood paint layer formed by waterproof wood paint, modified particles are added in the preparation process, strong hydrogen bond action can be formed between the modified particles and a prepolymer, the cross-linking of a coating film is promoted, a three-dimensional reticular structure is formed, the moisture permeation and diffusion can be effectively prevented, the acting force between hydrophobic groups grafted on the modified particles and water is further weakened, the decorative layer is endowed with excellent waterproof performance, pigment can be added to modify the color of the decorative layer, the wood paint cannot release formaldehyde, the environmental protection requirement is met, finally, a groove opening formed by the substrate layer and the bottom plate layer is coated with wax for sealing, a more compact waterproof oil film is formed at the groove opening, and the waterproof performance of the groove opening is further improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The high-moisture-resistance environment-friendly multi-element composite floor comprises a substrate layer, a decorative layer and a bottom plate layer, wherein the decorative layer is a wood paint layer and is waterproof wood paint coated on the surface of the substrate layer, and the bottom plate layer and the substrate layer are both poplar veneers;
waterproof wood lacquer of coating on substrate layer one side surface forms the decorative layer, later adopts environmental protection level MDI glue veneer bottom plate layer on substrate layer opposite side surface, later scribbles wax at the notch that substrate layer and bottom plate layer formed and seals, prepares out the polybasic laminate flooring of dampproofing environmental protection.
The wood paint layer is prepared by the following steps:
adding 4, 4 '-diphenylmethane diisocyanate and dehydrated polyester diol into a reaction bottle, heating to 65 ℃, uniformly stirring and reacting for 20min, then adding dimethylolbutyric acid and dibutyltin dilaurate, heating to 85 ℃, preserving heat and reacting for 3h to obtain a prepolymer, then cooling to room temperature, adding triethylamine to adjust the pH until the system is neutral, adding deionized water, and stirring at high speed for 1h to obtain an aqueous emulsion, wherein the molar ratio of 4, 4' -diphenylmethane diisocyanate to polyester diol is controlled to be 2: 1, the sum of the weights of 4, 4 '-diphenylmethane diisocyanate and polyester diol is 4.5%, and the amount of dibutyltin dilaurate is 0.15% of the weight of 4, 4' -diphenylmethane diisocyanate;
dispersing cellulose nanocrystals in deionized water to prepare a suspension, adding a treatment solution, stirring at a high speed, dropwise adding a sodium hydroxide solution with the mass fraction of 10% to adjust the pH until the pH is 10, slowly dropwise adding a sodium hypochlorite aqueous solution with the mass fraction of 15% to adjust the pH until the pH is 6.5-7, adding ethanol to terminate the reaction, washing and centrifuging after the reaction is finished to prepare oxidized cellulose nanocrystals, and controlling the dosage ratio of the cellulose nanocrystals to the treatment solution to be 10 g: 40 mL;
adding the oxidized cellulose nanocrystal into N, N-dimethylformamide, introducing nitrogen, adding dodecyl alcohol, adding dibutyltin dilaurate, heating to 65 ℃, uniformly stirring, reacting for 24 hours, washing, centrifuging after the reaction is finished, and drying in vacuum to obtain modified particles, wherein the weight ratio of the treated cellulose nanocrystal to the dodecyl alcohol is controlled to be 1: 2, and the using amount of dibutyltin dilaurate is 0.3% of the weight of the treated cellulose nanocrystal.
Adding the modified particles into the aqueous emulsion, magnetically stirring for 5h, performing ultrasonic treatment for 2h, coating the modified particles on the surface of the substrate layer, leveling for 3 days at room temperature, and performing vacuum drying at 75 ℃ for 24h to form a wood paint layer, wherein the amount of the modified particles is 10% of the weight of the aqueous emulsion.
Example 2
The high-moisture-resistance environment-friendly multi-element composite floor comprises a substrate layer, a decorative layer and a bottom plate layer, wherein the decorative layer is a wood paint layer and is waterproof wood paint coated on the surface of the substrate layer, and the bottom plate layer and the substrate layer are both poplar veneers;
waterproof wood paint is coated on the surface of one side of the base material layer to form a decorative layer, then the surface of the other side of the base material layer is glued with the environment-friendly MDI glue bottom plate layer, and then the notches formed by the base material layer and the bottom plate layer are waxed and sealed to prepare the moisture-proof environment-friendly multi-element composite floor.
The wood paint layer is prepared by the following steps:
adding 4, 4 '-diphenylmethane diisocyanate and dehydrated polyester dihydric alcohol into a reaction bottle, heating to 65 ℃, uniformly stirring and reacting for 20min, then adding dimethylolbutyric acid and dibutyltin dilaurate, heating to 85 ℃, preserving heat and reacting for 3h to obtain a prepolymer, then cooling to room temperature, adding triethylamine to adjust the pH until the system is neutral, adding deionized water, stirring at high speed for 1h to obtain an aqueous emulsion, controlling the molar ratio of 4, 4' -diphenylmethane diisocyanate to polyester dihydric alcohol to be 2: 1, controlling the weight sum of 4, 4 '-diphenylmethane diisocyanate and polyester dihydric alcohol to be 5%, and controlling the weight sum of dibutyltin dilaurate to be 0.2% of the weight of 4, 4' -diphenylmethane diisocyanate;
dispersing cellulose nanocrystals in deionized water to prepare a suspension, adding a treatment solution, stirring at a high speed, dropwise adding a sodium hydroxide solution with the mass fraction of 10% to adjust the pH until the pH is 10, slowly dropwise adding a sodium hypochlorite aqueous solution with the mass fraction of 15% to adjust the pH until the pH is 6.5-7, adding ethanol to terminate the reaction, washing and centrifuging after the reaction is finished to prepare oxidized cellulose nanocrystals, and controlling the dosage ratio of the cellulose nanocrystals to the treatment solution to be 10 g: 45 mL;
adding the oxidized cellulose nanocrystal into N, N-dimethylformamide, introducing nitrogen, adding dodecyl alcohol, adding dibutyltin dilaurate, heating to 65 ℃, uniformly stirring, reacting for 24 hours, washing, centrifuging after the reaction is finished, and drying in vacuum to obtain modified particles, wherein the weight ratio of the treated cellulose nanocrystal to the dodecyl alcohol is controlled to be 1: 2.5, and the using amount of dibutyltin dilaurate is 0.4% of the weight of the treated cellulose nanocrystal.
Adding the modified particles into the aqueous emulsion, magnetically stirring for 5h, performing ultrasonic treatment for 2h, coating the modified particles on the surface of the substrate layer, leveling for 3 days at room temperature, and performing vacuum drying at 75 ℃ for 24h to form a wood paint layer, wherein the amount of the modified particles is 11% of the weight of the aqueous emulsion.
Example 3
The high-moisture-resistance environment-friendly multi-element composite floor comprises a base material layer, a decorative layer and a base plate layer, wherein the decorative layer is a wood paint layer and is waterproof wood paint coated on the surface of the base material layer, and the base plate layer and the base material layer are both poplar veneers;
waterproof wood lacquer of coating on substrate layer one side surface forms the decorative layer, later adopts environmental protection level MDI glue veneer bottom plate layer on substrate layer opposite side surface, later scribbles wax at the notch that substrate layer and bottom plate layer formed and seals, prepares out the polybasic laminate flooring of dampproofing environmental protection.
The wood paint layer is prepared by the following steps:
adding 4, 4 '-diphenylmethane diisocyanate and dehydrated polyester dihydric alcohol into a reaction bottle, heating to 65 ℃, uniformly stirring and reacting for 20min, then adding dimethylolbutyric acid and dibutyltin dilaurate, heating to 85 ℃, carrying out heat preservation reaction for 3h to obtain a prepolymer, then cooling to room temperature, adding triethylamine to adjust the pH until the system is neutral, adding deionized water, and carrying out high-speed stirring for 1h to obtain an aqueous emulsion, wherein the molar ratio of the 4, 4' -diphenylmethane diisocyanate to the polyester dihydric alcohol is controlled to be 2: 1, the sum of the weights of the 4, 4 '-diphenylmethane diisocyanate and the polyester dihydric alcohol is 6%, and the sum of the weights of the dibutyltin dilaurate is 0.3% of the weight of the 4, 4' -diphenylmethane diisocyanate;
dispersing cellulose nanocrystals in deionized water to prepare a suspension, adding a treatment solution, stirring at a high speed, dropwise adding a sodium hydroxide solution with the mass fraction of 10% to adjust the pH until the pH is 10, slowly dropwise adding a sodium hypochlorite aqueous solution with the mass fraction of 15% to adjust the pH until the pH is 6.5-7, adding ethanol to terminate the reaction, washing and centrifuging after the reaction is finished to prepare oxidized cellulose nanocrystals, and controlling the dosage ratio of the cellulose nanocrystals to the treatment solution to be 10 g: 50 mL;
adding the oxidized cellulose nanocrystal into N, N-dimethylformamide, introducing nitrogen, adding lauryl alcohol, adding dibutyltin dilaurate, heating to 65 ℃, uniformly stirring, reacting for 24 hours, washing, centrifuging after the reaction is finished, and drying in vacuum to obtain modified particles, wherein the weight ratio of the treated cellulose nanocrystal to the lauryl alcohol is controlled to be 1: 3, and the using amount of dibutyltin dilaurate is 0.5% of the weight of the treated cellulose nanocrystal.
Adding the modified particles into the aqueous emulsion, magnetically stirring for 5h, performing ultrasonic treatment for 2h, coating the modified particles on the surface of the substrate layer, leveling for 3 days at room temperature, and performing vacuum drying at 75 ℃ for 24h to form a wood paint layer, wherein the amount of the modified particles is 12% of the weight of the aqueous emulsion.
Comparative example 1
This comparative example compares to example 1 without the addition of modified particles.
Comparative example 2
This comparative example is a highly moisture resistant floor produced by a commercially available company.
The moisture-proof floors prepared in examples 1 to 3 and comparative examples 1 to 2 were tested according to the GB/T11718-2009 standard, and the results are shown in the following table:
it can be seen from the above table that examples 1-3 have excellent moisture resistance.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (5)
1. The utility model provides a many first laminate flooring of high moisture resistance environmental protection which characterized in that: the waterproof wood lacquer decorative board comprises a base material layer, a decorative layer and a bottom board layer, wherein the decorative layer is a wood lacquer layer formed by waterproof wood lacquer coated on the surface of the base material layer, and the bottom board layer and the base material layer are both poplar veneers;
the wood paint layer is prepared by the following steps:
step S1, adding 4, 4' -diphenylmethane diisocyanate and dehydrated polyester dihydric alcohol into a reaction bottle, heating to 65 ℃, uniformly stirring and reacting for 20min, then adding dimethylolbutyric acid and dibutyltin dilaurate, heating to 85 ℃, preserving heat and reacting for 3h to obtain a prepolymer, then cooling to room temperature, adding triethylamine to adjust the pH until the system is neutral, adding deionized water, and stirring at high speed for 1h to obtain an aqueous emulsion;
step S2, adding the modified particles into the water-based emulsion, performing magnetic stirring for 5 hours, performing ultrasonic treatment for 2 hours, then coating the modified particles on the surface of the base material layer, leveling for 3 days at room temperature, and then performing vacuum drying for 24 hours at 75 ℃ to form a wood paint layer, wherein the amount of the modified particles is 10-12% of the weight of the water-based emulsion;
the modified particle comprises the following steps:
step S11, dispersing the cellulose nanocrystals in deionized water to prepare a suspension, then adding a treatment solution, stirring at a high speed, dropwise adding a sodium hydroxide solution with the mass fraction of 10% to adjust the pH until the pH is 10, then slowly dropwise adding a sodium hypochlorite aqueous solution with the mass fraction of 15% to adjust the pH until the pH is 6.5-7, then adding ethanol to terminate the reaction, and after the reaction is finished, washing and centrifuging to prepare oxidized cellulose nanocrystals;
and step S12, adding the oxidized cellulose nanocrystals into N, N-dimethylformamide, introducing nitrogen, adding dodecyl alcohol, adding dibutyltin dilaurate, heating to 65 ℃, uniformly stirring, reacting for 24 hours, washing after the reaction is finished, centrifuging, and drying in vacuum to obtain the modified particles.
2. The environment-friendly multi-element composite floor with high moisture resistance as claimed in claim 1, wherein: in step S1, the molar ratio of 4, 4 ' -diphenylmethane diisocyanate to polyester diol is controlled to be 2: 1, the amount of dimethylolbutyric acid is 4.5-6% of the sum of the weight of 4, 4 ' -diphenylmethane diisocyanate and polyester diol, and the amount of dibutyltin dilaurate is 0.15-0.3% of the weight of 4, 4 ' -diphenylmethane diisocyanate.
3. The environment-friendly multi-element composite floor with high moisture resistance as claimed in claim 1, wherein: the treatment liquid is prepared by mixing tetramethylpiperidine oxide, sodium bromide and deionized water according to the dosage ratio of 30.2 mg: 300-330 mg: 10 mL.
4. The environment-friendly multi-element composite floor with high moisture resistance as claimed in claim 1, wherein: in the step S11, the dosage ratio of the cellulose nanocrystal to the treatment liquid is controlled to be 10 g: 40-50mL, the weight ratio of the treated cellulose nanocrystal to the lauryl alcohol is controlled to be 1: 2-3 in the step S12, and the dosage of the dibutyltin dilaurate is 0.3-0.5% of the weight of the treated cellulose nanocrystal.
5. The production process of the environment-friendly multi-element composite floor with high moisture resistance as claimed in claim 1, wherein the production process comprises the following steps: the method comprises the following steps:
waterproof wood lacquer of coating on substrate layer one side surface forms the decorative layer, later adopts environmental protection level MDI glue veneer bottom plate layer on substrate layer opposite side surface, later scribbles wax at the notch that substrate layer and bottom plate layer formed and seals, prepares out the polybasic laminate flooring of dampproofing environmental protection.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111445001.3A CN114181606B (en) | 2021-11-30 | 2021-11-30 | High-moisture-resistance environment-friendly multi-element composite floor and production process thereof |
| PCT/CN2022/134376 WO2023098591A1 (en) | 2021-11-30 | 2022-11-25 | High-moisture-resistance environment-friendly multi-component composite floor and production process thereof |
| ZA2023/01379A ZA202301379B (en) | 2021-11-30 | 2023-02-02 | A highly moisture-proof environment-friendly multi-element composite floor and its production process |
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| CN202111445001.3A CN114181606B (en) | 2021-11-30 | 2021-11-30 | High-moisture-resistance environment-friendly multi-element composite floor and production process thereof |
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| CN114181606A CN114181606A (en) | 2022-03-15 |
| CN114181606B true CN114181606B (en) | 2022-07-19 |
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| CN (1) | CN114181606B (en) |
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| CN116854496B (en) * | 2023-07-06 | 2024-06-25 | 广西中玻新材料科技集团有限公司 | Preparation method of fly ash porous heat-insulating material |
| CN117124668B (en) * | 2023-08-30 | 2024-10-01 | 美新科技股份有限公司 | Wear-resistant corrosion-resistant composite floor material and preparation method thereof |
| CN119119855A (en) * | 2024-09-19 | 2024-12-13 | 江苏美标家居科技有限公司 | A wear-resistant floor heating floor and preparation method thereof |
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| EP1197530A1 (en) * | 2000-10-13 | 2002-04-17 | Kissel & Wolf GmbH | Screen printable dispersion coating material |
| CN101709198B (en) * | 2009-12-07 | 2012-09-19 | 上海乘鹰新材料有限公司 | Waterborne polyurethane emulsion coating and method for preparing same |
| CN104039945B (en) * | 2012-01-04 | 2017-03-15 | 宝洁公司 | There is the fibre structure containing active substance in multiple regions of different densities |
| CN105670514B (en) * | 2016-03-01 | 2017-11-14 | 山东农业大学 | The method of the nanometer particle-modified water-borne wood coating of nano-cellulose hybrid inorganic |
| CN206091194U (en) * | 2016-04-29 | 2017-04-12 | 湖南邦弗特新材料技术有限公司 | Double -deck solid wood floor of environment -friendly |
| CN107254002A (en) * | 2017-08-01 | 2017-10-17 | 张振 | Nano-cellulose containing cinnamyl functional groups and its preparation method and application |
| CN111333917A (en) * | 2020-04-26 | 2020-06-26 | 林杨志 | Hydrophobic cellulose-chitosan high-barrier composite film and preparation method thereof |
| CN112210225B (en) * | 2020-10-26 | 2023-05-02 | 内蒙古农业大学 | Preparation method of nano-cellulose-based oxygen-barrier composite film |
| CN114181606B (en) * | 2021-11-30 | 2022-07-19 | 安徽扬子地板股份有限公司 | High-moisture-resistance environment-friendly multi-element composite floor and production process thereof |
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- 2022-11-25 WO PCT/CN2022/134376 patent/WO2023098591A1/en active Application Filing
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| CN114181606A (en) | 2022-03-15 |
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Effective date of registration: 20231218 Address after: 239000 No. 98 Garden Road West, Anhui, Chuzhou Patentee after: ANHUI YANGZI FLOORING Inc.,Co. Patentee after: Laian Yangtze Floor Co.,Ltd. Address before: 239000 No. 98 Garden Road West, Anhui, Chuzhou Patentee before: ANHUI YANGZI FLOORING Inc.,Co. |
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Address after: No. 10 Jingyi Road, Economic Development Zone, Xin'an Town, Lai'an County, Chuzhou City, Anhui Province, 239299 Patentee after: Laian Yangtze Floor Co.,Ltd. Country or region after: China Patentee after: ANHUI YANGZI FLOORING Inc.,Co. Address before: 239000 No. 98 Garden Road West, Anhui, Chuzhou Patentee before: ANHUI YANGZI FLOORING Inc.,Co. Country or region before: China Patentee before: Laian Yangtze Floor Co.,Ltd. |