CN114989380B - Hydrolysis-resistant polyester polyurethane court material and preparation method thereof - Google Patents
Hydrolysis-resistant polyester polyurethane court material and preparation method thereof Download PDFInfo
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- 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
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- 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
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
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- 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
- C08G18/4825—Polyethers containing two hydroxy groups
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- 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
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5425—Silicon-containing compounds containing oxygen containing at least one C=C bond
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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Abstract
The invention relates to a hydrolysis-resistant polyester polyurethane court material and a preparation method thereof, belonging to the technical field of polyurethane materials. The hydrolysis-resistant polyester polyurethane court material comprises a component A and a component B, wherein the component A comprises: 25-35% of hydrophobic polyether polyol A, 8-20% of polyester polyol, 15-25% of plasticizer, 20-30% of filler, 3-8% of pigment, 0.5-1% of thickening agent, 2.5-3% of water removing agent, 1-2% of silane coupling agent, 0.5-1% of catalyst and the component B is DP1675-B; the mixing mass ratio of the component A to the component B is (0.7-1.5): 1. The plastic court material prepared by the invention has excellent wear resistance and hydrolysis resistance, reduces the material cost, obviously prolongs the service life of the court, and simultaneously provides a simple and easy preparation method.
Description
Technical Field
The invention relates to a hydrolysis-resistant polyester polyurethane court material and a preparation method thereof, belonging to the technical field of polyurethane materials.
Background
Because of good elasticity and moderate hardness, the polyurethane court is widely applied to paving indoor and outdoor courts, especially outdoor basketball courts, badminton courts and the like in schools, parks, communities and the like.
At present, the polyurethane paving material is mainly a polyether polyurethane material, and the application of the polyester polyurethane court material to outdoor is not reported. The polyester polyurethane court material has excellent wear resistance and high temperature resistance due to the structural characteristics, and the raw material cost is low, but the polyester polyurethane material has the hydrolysis problem in the storage period of the component A, and the court cured by the components A and B has the defect of hydrolysis resistance when being used outdoors, so the application of the court material in outdoor court is greatly limited.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention overcomes the defects in the prior art, provides the hydrolysis-resistant polyester polyurethane court material, and the prepared plastic court material has excellent wear resistance and hydrolysis resistance, reduces the material cost, obviously prolongs the service life of the court, and simultaneously provides a simple and easy preparation method.
The hydrolysis-resistant polyester type polyurethane court material comprises a component A and a component B, wherein the component A comprises the following raw materials in percentage by mass:
25 to 35 percent of hydrophobic polyether polyol A,
8 to 20 percent of polyester polyol,
15 to 25 percent of plasticizer,
20 to 30 percent of filler,
3 to 8 percent of pigment,
0.5 to 1 percent of thickening agent,
2.5 to 3 percent of water removing agent,
1 to 2 percent of silane coupling agent,
0.5 to 1 percent of catalyst;
the component B is DP1675-B (Shandong-Nonwei polyurethane Co., ltd.), is a prepolymer prepared by prepolymerization of polyether polyol B with the number average molecular weight of 3000-6000 and the functionality of 2-3 and 4,4' -dicyclohexylmethane diisocyanate, and the NCO percent is 5-10;
the mixing mass ratio of the component A to the component B is (0.7-1.5): 1.
Preferably, the hydrophobic polyether polyol A is polyether polyol with the number average molecular weight of 1000-6000 and the functionality of 2-3. Further preferably, it is a Dow VORAPEL-functional D3201 (Dow chemical Co., USA).
Preferably, the polyester polyol is an aromatic polyester polyol having a functionality of 2 and a hydroxyl number of 50 to 300mgKOH/g. Further preferred is PE-230B (Shandong-Nowev polyurethane Co., ltd.).
Preferably, the plasticizer is a chlorinated palm oil methyl ester plasticizer. More preferably, methyl chlorinated palm oil RY-104 (Rayun environmental protection technology Co., ltd., dongguan city).
Preferably, the filler is talc powder, and more preferably 400 mesh talc powder (Cixia jin Shi talc Co., ltd.).
Preferably, the pigment is phthalocyanine green or iron oxide green, and more preferably iron oxide green (Tianjin, same color chemical Co., ltd.).
Preferably, the thickener is silica, and more preferably precipitated silica (Jiangxi black cat carbon black, ltd.).
Preferably, the water removal agent is a physical adsorption water removal mechanism type water removal agent. Further preferably 3A molecular sieve (Luoyang Jianlong micro-nano new material Co., ltd.).
Preferably, the silane coupling agent is one of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropylmethyldimethoxysilane, 3-aminopropylmethyldiethoxysilane and KH-171. Further preferably KH-171 (Kyozhou Jessica chemical Co., ltd.).
Preferably, the catalyst is a composite catalyst of organic bismuth and organic zinc with a mixing mass ratio of (4.5-5.5): 1, and more preferably, the composite catalyst of organic bismuth and organic zinc with a mixing mass ratio of 5. Among them, the organic zinc is preferably zinc neodecanoate (Guangzhou Yougun synthetic materials Co., ltd.), and the organic bismuth is preferably DY-20 (Shanghai Desheng-Yin chemical Co., ltd.).
The preparation method of the hydrolysis-resistant polyester polyurethane court material comprises the following steps:
(1) The component A comprises: mixing hydrophobic polyether polyol A, polyester polyol, a plasticizer, a filler, a pigment, a thickening agent and a silane coupling agent, stirring for 30-40min at the temperature of 75-80 ℃, vacuum dehydrating for 2-3h at the temperature of 88-95 ℃ until the water content is less than or equal to 0.5 wt% per mill, cooling to 50-65 ℃, finally adding a water removing agent and a catalyst, and stirring for 30-40min to obtain a component A;
(2) And B component: adding 4,4' -dicyclohexyl methane diisocyanate into polyether polyol B, heating to 80-85 ℃, and reacting for 1.5-2.5h to obtain a component B;
(3) During construction, the component A and the component B are mixed according to the proportion and then are blade-coated or sprayed on a base surface, and the hydrolysis-resistant polyester polyurethane court material is obtained.
The hydrolysis-resistant polyester polyurethane court material is generally used as a reinforcing layer of a court structure layer.
According to the invention, the component A is dehydrated at high temperature in vacuum through a special preparation process, and then the water absorbent is added to remove trace water in the system, so that the hydrolysis problem of the component A during storage is solved; the wear resistance of the material is improved by introducing polyester polyol; the hydrophobicity of the outdoor paving material after the component A and the component B are mixed is improved on two aspects of the material and between the materials by using the hydrophobic polyether polyol, introducing the silane coupling agent and adding a proper amount of the plasticizer, so that the surface of the material is difficult to be wetted by water, and the problem of hydrolysis resistance of outdoor use of the polyester polyurethane plastic court material is solved.
In the practical application of the polyurethane court material, the hardness, viscosity, strength and the like of the product can be influenced according to the variety selection and the dosage change of the polyether polyol, the polyester polyol and the plasticizer in the raw material components. In actual construction, the types and amounts of the polyether polyol, polyester polyol and plasticizer can be properly selected within the ranges disclosed above according to the specific conditions of the court, so as to obtain the best construction effect.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the hydrolysis-resistant polyester type polyurethane plastic court material, no solvent is added, when the component A is prepared, high-temperature vacuum dehydration is performed, and then the water absorbent is added to remove trace water in the system, so that the hydrolysis problem of the component A during storage is solved;
(2) According to the invention, the wear resistance of the material is improved by introducing the polyester polyol, the hydrophobicity of the outdoor paving material after the component A and the component B are mixed is improved by using the hydrophobic polyether polyol, introducing the silane coupling agent and adding a proper amount of the plasticizer in two aspects of the high molecular structure per se and the phase, so that the surface of the material is difficult to be wetted by water, the problem of non-hydrolysis resistance of the outdoor polyester polyurethane plastic court material is solved, and the prepared court is low in cost and has better long-term use.
Detailed Description
The present invention is further illustrated by the following examples, but the scope of the present invention is not limited thereto, and modifications of the technical solutions of the present invention by those skilled in the art should be within the scope of the present invention.
The starting materials used in the examples are, unless otherwise specified, commercially available conventional starting materials; the processes used in the examples are, unless otherwise specified, conventional in the art.
Some of the raw materials used in the examples are as follows:
VORAPEL ™ D3201, dow chemical Co.USA;
PE-230B, norway polyurethane, inc., shandong;
RY-104, environmental protection science and technology Limited, rayun, dongguan;
talc powder of 400 mesh, jinxing talc powder of Qixia city, limited;
phthalocyanine green, iron oxide green, tianjin, same as pigment chemical Co., ltd;
silica, jiangxi black cat carbon black, inc.;
KH-171, jeccard chemical Co., ltd, hangzhou;
3-aminopropyltrimethoxysilane, shanghai Chungsai science and technology Limited;
3A molecular sieve, luoyang Jianlong micro-nano new material, inc.;
zinc neodecanoate, guangzhou Youyun synthetic materials, inc.;
DY-20, shanghai Deyin Chemicals, inc.;
DP1675-B, norwegian polyurethane, inc. of Shandong;
DL-2000D, shandong Lanxingdong chemical Co., ltd.
Example 1
(1) The component A comprises: 25g of hydrophobic polyether polyol A (VORAPEL:. D3201), 20g of polyester polyol (PE-230B), 25g of plasticizer (RY-104), 22.5g of 400-mesh talcum powder, 3g of iron oxide green, 0.5g of silicon dioxide and 1g of silane coupling agent (KH-171) are mixed, stirred for 30min at the temperature of 80 ℃, and vacuum dehydrated for 2h at the temperature of 88 ℃ to ensure that the water content is less than or equal to 0.5 wt%, cooled to 50 ℃, and finally added with 2.5g of water removal agent (3A molecular sieve), 0.5g of catalyst (DY-20: zinc neodecanoate = 5.5).
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 1.3 and then blade-coated or sprayed by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Example 2
(1) The component A comprises: 35g of hydrophobic polyether polyol A (VORAPEL T5001), 8g of polyester polyol (PE-230B), 15g of plasticizer (chlorinated palm oil methyl ester), 30g of 400-mesh talcum powder, 5g of phthalocyanine green, 1g of silicon dioxide and 2g of silane coupling agent (3-aminopropyl trimethoxy silane) are mixed, stirred at the temperature of 75 ℃ for 40min, vacuum dehydrated at the temperature of 95 ℃ for 3h to ensure that the water content is less than or equal to 0.5 weight per thousand, cooled to 65 ℃, finally, 3g of water removing agent (3A molecular sieve), 1g of catalyst (DY-20: zinc neodecanoate = 4.5.
(2) And the component B comprises: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 0.7 and then subjected to blade coating or polyurea spraying by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Example 3
(1) The component A comprises: 30g of hydrophobic polyether polyol A (VORAPEL:. D3201), 16g of polyester polyol (PE-230B), 20g of plasticizer (RY-104), 20g of 400-mesh talcum powder, 8g of iron oxide green, 0.7g of silicon dioxide and 1.7g of silane coupling agent (KH-171) are mixed, stirred at 78 ℃ for 35min, vacuum dehydrated at 92 ℃ for 2h to ensure that the water content is less than or equal to 0.5 wt%, cooled to 60 ℃, finally added with 2.8g of water removal agent (3A molecular sieve), 0.8g of catalyst (DY-20: zinc neodecanoate =5.
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 1.5 and then blade-coated or sprayed by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 1
(1) And (2) component A: 30g of hydrophobic polyether polyol A (VORAPEL:. D3201), 16g of polyester polyol (PE-230B), 20g of plasticizer (RY-104), 20g of 400-mesh talcum powder, 8g of iron oxide green, 0.7g of silicon dioxide, 1.7g of silane coupling agent (KH-171) and 2.8g of water removal agent (3A molecular sieve) are mixed, stirred for 30min at the temperature of 78 +/-2 ℃, and vacuum dehydrated for 2h at the temperature of 92 +/-3 ℃ to ensure that the water content is less than or equal to 0.5 per thousand, cooled to 60 +/-5 ℃, and finally 0.8g of catalyst (DY-20: zinc neodecanoate = 5) is added, and stirred for 30min, thus obtaining the component A.
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 1.5 and then blade-coated or sprayed by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 2
(1) And (2) component A: 30g of hydrophobic polyether polyol (VORAPEL:. D3201), 16g of polyester polyol (PE-230B), 20g of plasticizer (RY-104), 20g of 400-mesh talcum powder, 8g of iron oxide green, 0.7g of silicon dioxide and 1.7g of silane coupling agent (KH-171) are mixed, stirred for 30min at the temperature of 78 +/-2 ℃, vacuum dehydrated for 2h at the temperature of 92 +/-3 ℃ to ensure that the water content is less than or equal to 0.5 wt%, cooled to 60 +/-5 ℃, finally added with 0g of water removing agent (3A molecular sieve), 0.8g of catalyst (DY-20: zinc neodecanoate =5.
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, the material is uniformly mixed according to the mass ratio of A to B of 1.5 and then is subjected to blade coating or is sprayed by polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 3
(1) And (2) component A: mixing 30g of conventional polyether polyol (DL-2000D), 16g of polyester polyol (PE-230B), 20g of 400-mesh talcum powder, 8g of iron oxide green and 0.7g of silicon dioxide, stirring for 30min at 78 +/-2 ℃, and vacuum dehydrating for 2h at 92 +/-3 ℃ until the water content is less than or equal to 0.5 wt%, cooling to 60 +/-5 ℃, finally adding 2.8g of a dehydrator (3A molecular sieve) and 0.8g of a catalyst (DY-20: zinc neodecanoate = 5) and stirring for 30min to obtain a component A.
(2) And the component B comprises: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, the material is uniformly mixed according to the mass ratio of A to B of 1.5 and then is subjected to blade coating or is sprayed by polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 4
(1) The component A comprises: mixing 30g of hydrophobic polyether polyol A (VORAPEL:. D3201), 16g of polyester polyol (PE-230B), 20g of 400-mesh talcum powder, 8g of iron oxide green and 0.7g of silicon dioxide, stirring 30min at 78 +/-2 ℃, vacuum dehydrating for 2h at 92 +/-3 ℃ until the water content is less than or equal to 0.5wt per thousand, cooling to 60 +/-5 ℃, finally adding 2.8g of a water removing agent (3A molecular sieve) and 0.8g of a catalyst (DY-20: zinc neodecanoate = 5), and stirring for 30min to obtain the component A.
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 1.5 and then blade-coated or sprayed by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 5
(1) The component A comprises: 30g of conventional polyether polyol (DL-2000D), 16g of polyester polyol (PE-230B), 20g of plasticizer (RY-104), 20g of 400-mesh talcum powder, 8g of iron oxide green and 0.7g of silicon dioxide are mixed, stirred for 30min at the temperature of 78 +/-2 ℃, vacuum dehydrated for 2h at the temperature of 92 +/-3 ℃ to ensure that the water content is less than or equal to 0.5 weight per thousand, cooled to 60 +/-5 ℃, and finally added with 2.8g of a water removing agent (3A molecular sieve) and 0.8g of a catalyst (DY-20: zinc neodecanoate =5.
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 1.5 and then blade-coated or sprayed by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 6
(1) And (2) component A: 30g of conventional polyether polyol (DL-2000D), 16g of polyester polyol (PE-230B), 20g of 400-mesh talcum powder, 8g of iron oxide green, 0.7g of silicon dioxide and 1.7g of silane coupling agent (KH-171) are mixed, stirred for 30min at the temperature of 78 +/-2 ℃, vacuum dehydrated for 2h at the temperature of 92 +/-3 ℃ until the water content is less than or equal to 0.5wt per thousand, cooled to 60 +/-5 ℃, and finally added with 2.8g of water removing agent (3A molecular sieve) and 0.8g of catalyst (DY-20: zinc neodecanoate = 5).
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 1.5 and then blade-coated or sprayed by using polyurea spraying equipment, and the required thickness (5 mm) can be achieved after 1 construction.
Comparative example 7
(1) The component A comprises: 46g of hydrophobic polyether polyol A (VORAPEL & lt 3201 & gt), 20g of plasticizer (RY-104), 20g of 400-mesh talcum powder, 8g of iron oxide green, 0.7g of silicon dioxide and 1.7g of silane coupling agent (KH-171) are mixed, stirred for 30min at the temperature of 78 +/-2 ℃, vacuum dehydrated for 2h at the temperature of 92 +/-3 ℃ to ensure that the water content is less than or equal to 0.5wt per thousand, cooled to 60 +/-5 ℃, finally added with 2.8g of water removing agent (3A molecular sieve), 0.8g of catalyst (DY-20: zinc neodecanoate = 5).
(2) And B component: DP1675-B is selected.
(3) During construction, the material is used as a reinforcing layer, uniformly mixed according to the mass ratio of A to B of 3.
The product performances of examples 1 to 3 and comparative examples 1 to 7 were tested, in which the tensile strength and elongation at break test equipment used was a servo universal tester WAW-100B from Leichang testing machine, inc. in Jinan, and the abrasion test equipment used was a Taber type abrasion tester from high-speed rail testing instruments, and the test results are shown in tables 1 and 2.
TABLE 1 results of product Performance test of examples 1-3 and comparative examples 1-2
As can be seen from Table 1, the problem of hydrolysis resistance of the A component of the material prepared by the invention during storage is solved under the synergistic effect of the improved preparation process and the added water removal agent compared with the comparative examples 1 and 2.
TABLE 2 product Performance test results of examples 1-3 and comparative examples 3-7
As can be seen from Table 2, compared with comparative examples 3-7, the wear resistance of the material is improved by introducing the polyester polyol, and the problem of non-hydrolysis resistance of the outdoor polyester polyurethane plastic court material is solved by using the hydrophobic polyether polyol, introducing the silane coupling agent and adding a proper amount of the plasticizer, and the effects of the polyester polyol, the silane coupling agent and the plasticizer cannot be replaced.
Claims (7)
1. A hydrolysis-resistant polyester polyurethane court material comprises a component A and a component B, and is characterized in that:
25 to 35 percent of hydrophobic polyether glycol A,
8 to 20 percent of polyester polyol,
15 to 25 percent of plasticizer,
20-30% of filler,
3 to 8 percent of pigment,
0.5 to 1 percent of thickening agent,
2.5 to 3 percent of water removal agent,
1-2% of silane coupling agent,
0.5 to 1 percent of catalyst;
wherein the hydrophobic polyether polyol A is polyether polyol with the number average molecular weight of 1000-6000 and the functionality of 2-3; the polyester polyol is aromatic polyester polyol, the functionality is 2, and the hydroxyl value is 50-300mgKOH/g; the thickening agent is silicon dioxide;
the component B is DP1675-B produced by Shandong-Nonwei polyurethane corporation, which is a prepolymer prepared by prepolymerization of polyether polyol B with the number average molecular weight of 3000-6000 and the functionality of 2-3 and 4,4' -dicyclohexylmethane diisocyanate, and the NCO percent is 5-10;
the mixing mass ratio of the component A to the component B is (0.7-1.5): 1.
2. The hydrolysis-resistant polyester type polyurethane court material as claimed in claim 1, wherein: the plasticizer is chloro palm oil methyl ester plasticizer.
3. The hydrolysis-resistant polyester type polyurethane court material as claimed in claim 1, wherein: the filler is 325-1000 mesh talcum powder; the pigment is phthalocyanine green or iron oxide green.
4. The hydrolysis-resistant polyester type polyurethane court material as claimed in claim 1, wherein: the water removing agent is a 3A molecular sieve.
5. The hydrolysis-resistant polyester type polyurethane court material as claimed in claim 1, wherein: the silane coupling agent is one of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropylmethyldimethoxysilane, 3-aminopropylmethyldiethoxysilane and KH-171.
6. The hydrolysis-resistant polyester type polyurethane court material as claimed in claim 1, wherein: the catalyst is organic bismuth and organic zinc composite catalyst with the mixing mass ratio of (4.5-5.5) to 1.
7. A preparation method of the hydrolysis-resistant polyester type polyurethane court material as claimed in any one of claims 1 to 6, is characterized in that: the method comprises the following steps:
(1) The component A comprises: mixing hydrophobic polyether polyol A, polyester polyol, a plasticizer, a filler, a pigment, a thickening agent and a silane coupling agent, stirring for 30-40min at the temperature of 75-80 ℃, vacuum dehydrating for 2-3h at the temperature of 88-95 ℃ until the water content is less than or equal to 0.5 wt% per mill, cooling to 50-65 ℃, finally adding a water removing agent and a catalyst, and stirring for 30-40min to obtain a component A;
(2) And B component: adding 4,4' -dicyclohexyl methane diisocyanate into polyether polyol B, heating to 80-85 ℃, and reacting for 1.5-2.5h to obtain a component B;
(3) During construction, the component A and the component B are mixed according to the proportion and then are blade-coated or sprayed on a base surface, and the hydrolysis-resistant polyester polyurethane court material is obtained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210924282.9A CN114989380B (en) | 2022-08-03 | 2022-08-03 | Hydrolysis-resistant polyester polyurethane court material and preparation method thereof |
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