CN115216215A - Environment-friendly polyurethane surface layer for court and preparation method thereof - Google Patents
Environment-friendly polyurethane surface layer for court and preparation method thereof Download PDFInfo
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- CN115216215A CN115216215A CN202210852760.XA CN202210852760A CN115216215A CN 115216215 A CN115216215 A CN 115216215A CN 202210852760 A CN202210852760 A CN 202210852760A CN 115216215 A CN115216215 A CN 115216215A
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 52
- 239000004814 polyurethane Substances 0.000 title claims abstract description 52
- 239000002344 surface layer Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 69
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000012188 paraffin wax Substances 0.000 claims abstract description 19
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 16
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 16
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 claims abstract description 14
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000005543 nano-size silicon particle Substances 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000003085 diluting agent Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- YXRKNIZYMIXSAD-UHFFFAOYSA-N 1,6-diisocyanatohexane Chemical compound O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O.O=C=NCCCCCCN=C=O YXRKNIZYMIXSAD-UHFFFAOYSA-N 0.000 claims description 5
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 5
- 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 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 150000002009 diols Chemical class 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000004417 polycarbonate Substances 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 31
- 239000000377 silicon dioxide Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 7
- 239000013530 defoamer Substances 0.000 description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000051 modifying effect Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical group COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000001291 vacuum drying 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of sports materials, and particularly discloses an environment-friendly polyurethane surface layer for a court and a preparation method thereof. The environment-friendly polyurethane surface layer for the court comprises a component A, a component B and a defoaming agent, wherein the defoaming agent comprises the following components in parts by weight: 40-60 parts of polydimethylsiloxane, 5-10 parts of modified silicon dioxide, 60-80 parts of isooctane and 20-40 parts of chlorinated paraffin. A preparation method of an environment-friendly polyurethane surface layer for a court comprises the following steps: preparing a component A; preparing a component B; preparing a defoaming agent: sequentially adding polydimethylsiloxane oil, modified silicon dioxide and chlorinated paraffin into isooctane, and uniformly stirring to obtain a defoaming agent; preparing a polyurethane surface layer: and uniformly mixing the component A and the component B, then adding a defoaming agent, uniformly mixing to obtain a comprehensive material, then pouring the comprehensive material into a casting model, and cooling to obtain a polyurethane surface layer.
Description
Technical Field
The application relates to the technical field of sports materials, in particular to an environment-friendly polyurethane surface layer for a court and a preparation method thereof.
Background
Polyurethane materials are generally used for preparing a surface layer of a court due to excellent mechanical properties, the raw material of the surface layer generally consists of an A component and a B component, the A component and the B component are mixed on site during construction and then spread, and the A component and the B component are subjected to polymerization reaction during spreading to generate bubbles. Because the surface layer of the court requires smooth surface, matte and no bubble, the defoaming is usually carried out by adopting a solvent spraying method, but the defoaming construction of the solvent spraying method is complicated, the construction efficiency is influenced, and the environment is polluted by volatile toxic gas.
Disclosure of Invention
In order to improve the construction efficiency, the application provides an environment-friendly polyurethane surface layer for a court and a preparation method thereof.
In a first aspect, the application provides an environment-friendly polyurethane surface layer for a court, which adopts the following technical scheme:
the environment-friendly polyurethane surface layer for the court comprises a component A, a component B and a defoaming agent, wherein the defoaming agent comprises the following components in parts by weight: 40-60 parts of polydimethylsiloxane, 5-10 parts of modified silicon dioxide, 60-80 parts of isooctane and 20-40 parts of chlorinated paraffin.
By adopting the technical scheme, the polydimethylsiloxane, the chlorinated paraffin and the modified silicon dioxide are uniformly dispersed in the isooctane, and the surface tension of the polydimethylsiloxane and the chlorinated paraffin is low, so that a bubble wall film forming bubbles is damaged, and a defoaming effect is achieved; the modified silicon dioxide has a certain adsorption effect, so that the defoaming effect is further improved; in addition, the chlorinated paraffin enables the defoaming agent to be distributed on the surface of the polyurethane surface layer, so that the defoaming agent can conveniently defoam the surface of the polyurethane surface layer; when the polyurethane surface course is under construction in this application, directly add the defoaming agent in the raw materials can, follow-up need not to carry out the defoaming to the surface of polyurethane surface course and handles to improve the efficiency of construction, and less to the pollution of environment.
In a specific embodiment, the method for preparing the modified silica comprises the following steps: uniformly mixing nano silicon dioxide, ethanol and water to obtain a mixed solution A; adding vinyltriethoxysilane into ethanol to obtain a mixed solution B; and under the condition of heating, adding the mixed solution B into the mixed solution A, reacting for 10-20min to obtain modified sol, centrifugally drying, washing and drying to obtain the modified silicon dioxide.
By adopting the technical scheme, firstly, the nano silicon dioxide is dispersed in the ethanol to prepare the mixed solution A, then the vinyltriethoxysilane is added into the ethanol to prepare the mixed solution B, then the mixed solution B is added into the mixed solution A under the heating condition, the mixed solution A and the mixed solution B react, and the modified silicon dioxide is obtained by centrifugal drying, washing and drying, so that the modification of the silicon dioxide is completed.
In a specific possible embodiment, the weight percentage of the nano-silica in the mixed solution a is 2% -8%.
By adopting the technical scheme, the weight percentage of the nano silicon dioxide in the mixed liquid A is further limited in the application, so that the nano silicon dioxide is fully dispersed in the mixed liquid A, and the modification effect of the silicon dioxide is improved.
In a specific embodiment, the weight percentage of the vinyltriethoxysilane in the mixed solution B is 5% -15%.
By adopting the technical scheme, the weight percentage of the vinyl triethoxysilane in the mixed liquid B is further limited in the application, so that the vinyl triethoxysilane fully reacts with the nano silicon dioxide, and the modification effect of the silicon dioxide is improved.
In a specific possible embodiment, the raw materials of the component A comprise the following components in parts by weight: 10-20 parts of polyether polyol, 10-20 parts of diluent and 60-70 parts of HDI trimer.
In a specific possible embodiment, the raw materials of the component B comprise the following components in parts by weight: 20 to 30 portions of polycarbonate diol, 5 to 10 portions of dimethylolpropionic acid, 20 to 30 portions of diphenylmethane diisocyanate, 2 to 10 portions of triethylamine, 5 to 10 portions of pigment, 20 to 30 portions of filler and 0.1 to 1 portion of auxiliary agent.
In a particular embodiment, the filler comprises a mixture of carbon fibers and talc.
By adopting the technical scheme, the carbon fiber improves the strength of forming the polyurethane surface layer; the talcum powder has a certain dispersing effect, so that all the raw materials in the component B are uniformly mixed.
In a specific embodiment, the weight ratio of the defoamer, the a-component and the B-component is 1: (100-130): (150-190).
By adopting the technical scheme, when the using amount of the defoaming agent is low, the defoaming effect is difficult to fully play; when the using amount of the defoaming agent is large, the viscosity of a reaction system is too high, so that the defoaming effect of the defoaming agent is also influenced; the proportion of the defoaming agent, the component A and the component B is further limited in the application, so that the defoaming agent has a better defoaming effect.
In a second aspect, the application provides a preparation method of an environment-friendly polyurethane surface layer for a court, which adopts the following technical scheme:
a preparation method of an environment-friendly polyurethane surface layer for a court comprises the following steps:
preparing a component A: stirring and mixing polyether polyol and a diluent uniformly at the temperature of 100-130 ℃ to obtain a mixture A, adding HDI trimer into the mixture A after the mixture A is dehydrated, and carrying out heat preservation reaction at the temperature of 50-60 ℃ to obtain a component A;
preparing a component B; stirring and mixing polycarbonate diol and dimethylolpropionic acid uniformly at 100-120 ℃ to obtain a mixture B, adding diphenylmethane diisocyanate into the mixture B after the mixture B is dehydrated, carrying out heat preservation reaction at 60-90 ℃, then cooling to 40-50 ℃, adding triethylamine for neutralization reaction, then cooling to 30-40 ℃, adding pigment, filler and auxiliary agent, dispersing and emulsifying, and filtering to obtain a component B;
preparing a defoaming agent: sequentially adding polydimethylsiloxane oil, modified silicon dioxide and chlorinated paraffin into isooctane, and uniformly stirring to obtain a defoaming agent;
preparing a polyurethane surface layer: and uniformly mixing the component A and the component B, then adding a defoaming agent, uniformly mixing to obtain a comprehensive material, then pouring the comprehensive material into a casting model, and cooling to obtain a polyurethane surface layer.
By adopting the technical scheme, the component A, the component B and the defoaming agent are prepared firstly, then the component A and the component B are uniformly mixed, then the defoaming agent is added and uniformly mixed to obtain a comprehensive material, and finally the comprehensive material is poured into a casting model and cooled to obtain the polyurethane surface layer with a smooth surface.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the application, the polydimethylsiloxane, the chlorinated paraffin and the modified silicon dioxide are uniformly dispersed in the isooctane, and the surface tension of the polydimethylsiloxane and the chlorinated paraffin is low, so that a bubble wall film for forming bubbles is damaged, and a defoaming effect is achieved; the modified silicon dioxide has a certain adsorption effect, so that the defoaming effect is further improved; in addition, the chlorinated paraffin enables the defoaming agent to be distributed on the surface of the polyurethane surface layer, so that the defoaming agent can conveniently defoam the surface of the polyurethane surface layer; according to the application, during the construction of the polyurethane surface layer, the defoaming agent is directly added into the raw materials, and the surface of the polyurethane surface layer is not required to be subjected to defoaming treatment subsequently, so that the construction efficiency is improved, and the pollution to the environment is small;
2. when the usage amount of the defoaming agent is low, the defoaming effect is difficult to fully play; when the using amount of the defoaming agent is large, the viscosity of a reaction system is too high, so that the defoaming effect of the defoaming agent is also influenced; the proportion of the defoaming agent, the component A and the component B is further limited, so that the defoaming agent has a good defoaming effect;
3. the method comprises the steps of preparing a component A, a component B and a defoaming agent, uniformly mixing the component A and the component B, adding the defoaming agent, uniformly mixing to obtain a comprehensive material, pouring the comprehensive material into a casting model, and cooling to obtain a polyurethane surface layer with a smooth surface.
Detailed Description
The present application will be described in further detail with reference to examples.
All the starting materials in the examples are commercially available.
Preparation example
Preparation example 1
Uniformly stirring and mixing nano silicon dioxide, ethanol and water to obtain a mixed solution A; adding vinyltriethoxysilane into ethanol, and stirring and mixing uniformly to obtain a mixed solution B; dropwise adding the mixed solution B into the mixed solution A at 65 ℃, reacting for 15min to obtain modified sol, centrifugally drying, washing, and then carrying out vacuum drying at 180 ℃ for 24h to obtain modified silicon dioxide; wherein the weight percentage of the nano silicon dioxide in the mixed solution A is 2%, the weight percentage of the ethanol is 60%, and the weight percentage of the vinyl triethoxysilane in the mixed solution B is 5%; and the volume ratio of the mixed solution B to the mixed solution A is 1:3.
preparation example 2
The difference between preparation example 2 and preparation example 1 is that the weight percentage of nano silica in the mixed solution a is 5%, and the rest steps are the same as those of preparation example 1.
Preparation example 3
The difference between preparation example 3 and preparation example 1 is that the weight percentage of nano-silica in the mixed solution a is 8%, and the rest steps are the same as those in preparation example 1.
Preparation example 4
Preparation example 4 differs from preparation example 2 in that the weight percentage of vinyltriethoxysilane in mixed liquid B is 10%, and the rest of the procedure is the same as preparation example 2.
Preparation example 5
Preparation example 5 differs from preparation example 2 in that the weight percentage of vinyltriethoxysilane in mixed liquid B is 15%, and the rest of the procedure is the same as preparation example 2.
Examples
Example 1
Embodiment 1 provides a preparation method of an environment-friendly polyurethane surface layer for a court, which comprises the following steps:
preparing a component A: adding 15kg of polyether polyol and 15kg of diluent into a reaction kettle, stirring and heating to 115 ℃ to obtain a mixture A, after the mixture A is dehydrated, adding 65kg of HDI trimer into the mixture A, cooling to 55 ℃, and carrying out heat preservation reaction for 2 hours at 55 ℃ to obtain a component A; wherein the diluent is propylene glycol methyl ether acetate;
preparing a component B; adding 25kg of polycarbonate diol and 8kg of dimethylolpropionic acid into a dehydration kettle, heating to 110 ℃, stirring and mixing uniformly to obtain a mixture B, adding the mixture B into the reaction kettle after the mixture B is dehydrated, adding 25kg of diphenylmethane diisocyanate into the mixture B at 50 ℃, carrying out heat preservation reaction for 3 hours at 70 ℃, then cooling to 45 ℃, adding 6kg of triethylamine for neutralization reaction for 30 minutes to obtain a mixture C, then cooling to 35 ℃, adding the mixture C into a dispersion cylinder, carrying out dispersion and emulsification, then adding 8kg of pigment, 25kg of filler and 0.5kg of auxiliary agent, carrying out dispersion and emulsification for 1 hour, and filtering to obtain a component B; wherein the pigment is selected according to the required color; the filler comprises a mixture of carbon fibers and talcum powder, and the weight ratio of the carbon fibers to the talcum powder is 1:1; the auxiliary agent comprises coconut oil diethanolamide;
preparing a defoaming agent: adding 40kg of polydimethylsiloxane oil, 5kg of modified silicon dioxide in preparation example 1 and 20kg of chlorinated paraffin into 60kg of isooctane in sequence, and uniformly stirring to obtain a defoaming agent;
preparing a polyurethane surface layer: uniformly mixing the component A and the component B, then adding a defoaming agent, uniformly mixing to obtain a comprehensive material, then pouring the comprehensive material into a casting model, and cooling to obtain a polyurethane surface layer; wherein the weight ratio of the defoaming agent to the component A to the component B is 1:85:130.
as shown in Table 1, examples 1 to 5 are different from each other mainly in the selection of the modified silica.
TABLE 1 selection of modified silicas from examples 1 to 5
| Sample (I) | Modified silica |
| Example 1 | Preparation example 1 |
| Practice ofExample 2 | Preparation example 2 |
| Example 3 | Preparation example 3 |
| Example 4 | Preparation example 4 |
| Example 5 | Preparation example 5 |
Example 6
Example 6 differs from example 4 in that the filler comprises carbon fibres and the remaining steps correspond to example 4.
Example 7
Example 7 is different from example 4 in that 50kg of polydimethylsiloxane oil, 8kg of the modified silica of preparation example 4 and 30kg of chlorinated paraffin were added to 70kg of isooctane in this order and stirred uniformly to obtain a defoaming agent, and the remaining steps were identical to example 4.
Example 8
Example 8 is different from example 4 in that 60kg of polydimethylsiloxane oil, 10kg of modified silica in production example 4 and 40kg of chlorinated paraffin were added to 80kg of isooctane in this order and stirred uniformly to obtain an antifoaming agent, and the remaining steps were identical to example 4.
Example 9
Example 9 differs from example 7 in that the weight ratio of defoamer, a component a, B component was 1:100:150, the remaining steps correspond to example 7.
Example 10
Example 10 differs from example 7 in that the weight ratio of defoamer, a component a, B component was 1:115:170, the remaining steps correspond to example 7.
Example 11
Example 11 differs from example 7 in that the weight ratio of defoamer, a component a, B component was 1:130:190, the remaining steps correspond to example 7.
Example 12
Example 12 differs from example 7 in that the weight ratio of defoamer, a component a, B component was 1:145:210, the remaining steps correspond to example 7.
Comparative example
Comparative example 1
Comparative example 1 is different from example 1 in that 45kg of polydimethylsiloxane oil and 20kg of chlorinated paraffin are sequentially added to 60kg of isooctane and uniformly stirred to obtain an antifoaming agent, and the rest of the procedure is the same as example 1.
Comparative example 2
Comparative example 2 is different from example 1 in that 60kg of polydimethylsiloxane oil and 5kg of the modified silica of preparation example 1 were sequentially added to 60kg of isooctane and stirred to obtain a defoaming agent, and the remaining steps were identical to example 1.
Comparative example 3
The difference between the comparative example 3 and the example 1 is that 40kg of polydimethylsiloxane oil, 5kg of nano-silica and 20kg of chlorinated paraffin are sequentially added into 60kg of isooctane and are uniformly stirred to obtain the defoaming agent, and the rest steps are consistent with the example 1.
Performance test
And (3) appearance detection: three samples of the polyurethane surface layer obtained in each example were taken at different positions, and the area of each sample was 16dm 2 And calculating the average value of the number of the bubbles on the three samples, and recording the average value as a bubble residual amount a, wherein the smaller the bubble residual amount a is, the better the defoaming effect of the defoaming agent is.
Combining example 1, comparative example 1 and comparative example 2, the residual amount of bubbles in the polyurethane surface layer in example 1 is the lowest, so that the defoaming effect of the defoaming agent in example 1 is the best, and it can be seen that when the defoaming agent is prepared, modified silica and chlorinated paraffin are added, the modified silica has a certain adsorption effect, and the chlorinated paraffin enables the defoaming agent to be distributed on the surface of the polyurethane surface layer, so that the defoaming agent can be used for defoaming the surface of the polyurethane surface layer, and the defoaming effect of the defoaming agent is improved.
By combining the example 1 and the comparative example 3, the foam residue amount of the polyurethane surface layer in the example 1 is low, so that the defoaming effect of the defoaming agent in the example 1 is good, and it can be seen that when the defoaming agent is prepared, the nano silica is modified by using the vinyltriethoxysilane, so that the nano silica is conveniently and fully dispersed in the defoaming agent, and the defoaming effect of the defoaming agent is improved.
With reference to examples 1 to 3, the residual amount of bubbles in the polyurethane surface layer in example 2 is the lowest, and thus the defoaming effect of the defoaming agent in example 2 is the best, and it can be seen that when the weight percentage of the nanosilicon dioxide in the mixed solution a is 2% to 8% in modifying the silica, the weight percentage of the nanosilicon dioxide in the mixed solution a is increased, and the modifying effect of the silica tends to increase first and decrease later.
With reference to examples 2, 4 and 5, the residual amount of bubbles in the polyurethane surface layer was the lowest in example 4, and the defoaming effect of the defoaming agent was the best in example 4, and it can be seen that when the weight percentage of vinyltriethoxysilane in the mixed solution B was 5% to 15% when silica was modified, the weight percentage of vinyltriethoxysilane in the mixed solution B increased, and the modifying effect of silica tended to increase first and then decrease.
Combine embodiment 4 and embodiment 6, the bubble of polyurethane surface course is remained lowly in embodiment 4 to the defoaming effect of defoaming agent is better in embodiment 4, and it can be seen that when preparing B component, the mixture of carbon fiber and talcum powder is chooseed for use to the filler, and the talcum powder has certain dispersion, makes each raw materials misce bene in the B component, thereby is convenient for the defoaming agent to carry out the defoaming, has consequently improved the defoaming effect of defoaming agent.
In the case of combining examples 4, 7 and 8, the difference in the residual amounts of bubbles in the polyurethane top layers in examples 4, 7 and 8 was small, and it was found that the amount of the raw material for the defoaming agent was increased and the defoaming effect of the defoaming agent was not greatly affected when the defoaming agent was prepared.
By combining example 7 and examples 9-12, the residual amount of foam in the polyurethane top layer in examples 9-11 was low, and thus the defoaming effect of the defoaming agent in examples 9-11 was good, and it can be seen that when the amount of the defoaming agent used was low, it was difficult to sufficiently exert the defoaming effect in the preparation of the composite material, and when the amount of the defoaming agent used was large, the viscosity of the reaction system was too high, and the defoaming effect of the defoaming agent was also affected, and therefore, when the composite material was prepared, the weight ratio of the defoaming agent, the a component, and the B component was preferably 1: (100-130): (150-190), the defoaming effect of the defoaming agent is better.
The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The utility model provides an environment-friendly polyurethane surface course for court which characterized in that: the polyurethane surface layer comprises a component A, a component B and a defoaming agent, wherein the defoaming agent comprises the following components in parts by weight: 40-60 parts of polydimethylsiloxane, 5-10 parts of modified silicon dioxide, 60-80 parts of isooctane and 20-40 parts of chlorinated paraffin.
2. The environment-friendly polyurethane surface course for the court as recited in claim 1, wherein: the preparation method of the modified silicon dioxide comprises the following steps: uniformly mixing nano silicon dioxide, ethanol and water to obtain a mixed solution A; adding vinyltriethoxysilane into ethanol to obtain a mixed solution B; and under the condition of heating, adding the mixed solution B into the mixed solution A, reacting for 10-20min to obtain modified sol, centrifugally drying, washing and drying to obtain the modified silicon dioxide.
3. The environment-friendly polyurethane surface course for the court as recited in claim 2, wherein: the weight percentage of the nano silicon dioxide in the mixed solution A is 2-8%.
4. The environment-friendly polyurethane surface course for the court as recited in claim 3, wherein: the weight percentage of the vinyl triethoxysilane in the mixed liquid B is 5-15%.
5. The environment-friendly polyurethane surface course for the court as recited in claim 1, wherein: the component A comprises the following raw materials in parts by weight: 10-20 parts of polyether polyol, 10-20 parts of diluent and 60-70 parts of HDI trimer.
6. The environment-friendly polyurethane surface course for the court as recited in claim 1, wherein: the component B comprises the following raw materials in parts by weight: 20-30 parts of polycarbonate diol, 5-10 parts of dimethylolpropionic acid, 20-30 parts of diphenylmethane diisocyanate, 2-10 parts of triethylamine, 5-10 parts of pigment, 20-30 parts of filler and 0.1-1 part of auxiliary agent.
7. The environment-friendly polyurethane surface course for the court as recited in claim 6, wherein: the filler comprises a mixture of carbon fibers and talc.
8. The environment-friendly polyurethane surface course for the court as recited in claim 1, wherein: the weight ratio of the defoaming agent to the component A to the component B is 1: (100-130): (150-190).
9. A preparation method of an environment-friendly polyurethane surface layer for a court is characterized by comprising the following steps: the method comprises the following steps:
preparing a component A: stirring and mixing polyether polyol and a diluent uniformly at 100-130 ℃ to obtain a mixture A, adding HDI trimer into the mixture A after the mixture A is dehydrated, and carrying out heat preservation reaction at 50-60 ℃ to obtain a component A;
preparing a component B; stirring and mixing polycarbonate diol and dimethylolpropionic acid uniformly at 100-120 ℃ to obtain a mixture B, adding diphenylmethane diisocyanate into the mixture B after the mixture B is dehydrated, carrying out heat preservation reaction at 60-90 ℃, then cooling to 40-50 ℃, adding triethylamine for neutralization reaction, then cooling to 30-40 ℃, adding pigment, filler and auxiliary agent, dispersing and emulsifying, and filtering to obtain a component B;
preparing a defoaming agent: sequentially adding polydimethylsiloxane oil, modified silicon dioxide and chlorinated paraffin into isooctane, and uniformly stirring to obtain a defoaming agent;
preparing a polyurethane surface layer: and uniformly mixing the component A and the component B, then adding a defoaming agent, uniformly mixing to obtain a comprehensive material, then pouring the comprehensive material into a casting model, and cooling to obtain a polyurethane surface layer.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661496A (en) * | 2014-06-03 | 2017-05-10 | 国际壳牌研究有限公司 | Defoaming agent and associated methods of use |
| CN109370409A (en) * | 2018-10-25 | 2019-02-22 | 江门市长河化工实业集团有限公司 | A kind of aqueous polyurethane floor material and preparation method thereof |
| CN110960893A (en) * | 2019-11-29 | 2020-04-07 | 湖北新四海化工股份有限公司 | Mineral oil defoaming agent |
-
2022
- 2022-07-09 CN CN202210852760.XA patent/CN115216215A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661496A (en) * | 2014-06-03 | 2017-05-10 | 国际壳牌研究有限公司 | Defoaming agent and associated methods of use |
| CN109370409A (en) * | 2018-10-25 | 2019-02-22 | 江门市长河化工实业集团有限公司 | A kind of aqueous polyurethane floor material and preparation method thereof |
| CN110960893A (en) * | 2019-11-29 | 2020-04-07 | 湖北新四海化工股份有限公司 | Mineral oil defoaming agent |
Non-Patent Citations (1)
| Title |
|---|
| 汪多仁 * |
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