Disclosure of Invention
The invention aims to overcome the defects in the prior art, provide the high-performance polyurethane court material, solve the problems of wear resistance and low service life of the conventional polyurethane court, and the prepared product has excellent mechanical property and good wear resistance, is fast to cure, has strong operability and does not need to use a catalyst; secondly, the invention also provides a preparation method of the preparation method, which has simple process and convenient operation.
The high-performance polyurethane court material provided by the invention consists of a component A and a component B according to the mass ratio of (4.5-5.5): 1, wherein the component A comprises the following raw materials in percentage by mass: 20-25% of modified castor oil polyol, 5-10% of amine-terminated polyether, 0.5-0.7% of chain extender, 60-65% of filler, 1.5-3% of pigment, 0.7-2% of anti-settling agent, 2-3.5% of water absorbent, 0.2-0.4% of dispersing agent, 0.3-0.5% of antioxidant and 0.3-0.5% of ultraviolet absorbent;
the component B comprises the following raw materials in percentage by mass: 70-80% of isocyanate and 20-30% of polyether polyol.
The modified castor oil polyol is aromatic polyol, has a number average molecular weight of 500-1200, a functionality of 2-3.5, and preferably SY798, and is purchased from Shanghai Crinula chemical industry Co.
The polyether polyol is polyoxypropylene polyol, the number average molecular weight is 1000-3000, the functionality is 2, preferably INOVOLC-220, and the polyether polyol is purchased from Shandong Yinuowei New Material Co.
The amine-terminated polyether is a primary amine-terminated polypropylene oxide compound, preferably LHD-1200, available from Shandong Long Hua New Material Co., ltd.
The isocyanate is a mixture of polymeric MDI and diphenylmethane diisocyanate in a mass ratio of (1-2): 1, the polymeric MDI is preferably PM-200, the diphenylmethane diisocyanate is preferably MDI-50, and both PM-200 and MDI-50 are purchased from the company of Van Chemie group Co., ltd.
The chain extender is one of ethylene glycol or 1, 4-butanediol, the ethylene glycol is purchased from Shandong Baihua chemical industry Co., ltd, and the 1, 4-butanediol is purchased from Wuhan Jixin Yibang biotechnology Co., ltd.
The filler is heavy calcium carbonate with the mesh number of 400 and is purchased from Jiangxi Guangdong chemical industry Limited liability company.
The pigment is ferric oxide green, which is purchased from Shanghai first-grade pigment Co.
The anti-settling agent is precipitated silica, preferably ZB-3000, and is purchased from North and south China fine chemical industry Co.
The water absorbing agent is a 3A molecular sieve, and is purchased from Duckweed urban and immediately available as new material.
The dispersant is a nonionic neutral dispersant, preferably YRFC-03, available from Guangzhou Yourun synthetic materials Co.
The antioxidant is a hindered phenol antioxidant, preferably Irganox 1135, available from Basoff Inc.
The ultraviolet absorber is benzotriazole ultraviolet absorber, preferably Tinuvin 329, available from Basiff Co.
The preparation method of the high-performance polyurethane court material comprises the following steps:
(1) And (3) a component A: adding modified castor oil polyol, amine-terminated polyether and a chain extender into a reaction kettle, stirring and heating to 60-70 ℃, then adding a filler, a pigment, an anti-settling agent, an ultraviolet absorber and an antioxidant, heating to 90-100 ℃, dehydrating for 2-3 hours under the vacuum degree of-0.1 MPa, adding a water absorbent and a dispersing agent, and stirring for 1-2 hours to obtain the component A.
(2) And the component B comprises the following components: and (3) adding isocyanate into a reaction kettle, uniformly stirring, adding polyether polyol, heating to 80-85 ℃, reacting for 1-2h under heat preservation, and cooling to obtain the component B.
(3) When in use, A, B components are mixed and paved on a field according to the mass ratio, and the high-performance polyurethane court material is prepared after normal-temperature curing.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the high-performance polyurethane court material, from the design of a molecular structure, the modified castor oil polyalcohol is introduced, so that the material has an aromatic structure and a long-fat chain structure of vegetable oil, the polarity of a molecular chain is reduced, and the material has good mechanical properties; on the other hand, primary amino groups are introduced by matching with amine-terminated polyether, and the curing speed of the material is greatly improved by cooperating with a small molecular chain extender, so that the self-catalysis characteristic of the material is realized, the effect that the material can be cured at normal temperature is achieved, a catalyst is not required to be added, the construction efficiency is improved, and the prepared product is high in hardness and good in wear resistance.
(2) According to the high-performance polyurethane court material, the modified castor oil polyalcohol, the amino-terminated polyether and the chain extender are introduced, and the reasonable compounding of the isocyanate in the component B is adopted to cooperate with the low oil absorption value filler and the nonionic neutral dispersing agent, so that the viscosity of feed liquid is effectively reduced, the material maintains high activity and high strength, meanwhile, the material has good operation leveling property, and the construction difficulty is reduced.
(3) The preparation method of the high-performance polyurethane court material has the advantages of simple process, no need of a catalyst in use, convenient operation and suitability for industrial production.
Detailed Description
The invention is further illustrated below with reference to examples, which are not intended to limit the practice of the invention.
The raw materials used in examples and comparative examples are conventional commercial raw materials unless otherwise specified, and the process methods used in examples and comparative examples are conventional in the art unless otherwise specified.
Some of the raw materials used in the examples and comparative examples are described below:
SY798: shanghai Crinum chemical industry Co., ltd;
LHD-1200: shandong Long Hua New Material Co., ltd;
PM-200: smoke counter Wanhua chemical group Co., ltd;
MDI-50: smoke counter Wanhua chemical group Co., ltd;
INOVOLC220,220: new Material Co., ltd;
Ethylene glycol: shandong Baihua chemical Co., ltd;
1, 4-butanediol: wuhan Ji Xinyi, inc. of Biotechnology;
heavy calcium carbonate: jiangxi Guangdong chemical industry Limited liability company;
iron oxide green: shanghai first pigment Co., ltd;
ZB-3000: the fine chemical industry Co.Ltd;
3A molecular sieves: duckweed City New Material Co., ltd;
YRFC-03: guangzhou excellent synthetic materials Co., ltd;
irganox 1135: basiff stock Co.Ltd;
Tinuvin 329: basiff stock Co.Ltd;
castor oil: jinan sea Source chemical Co., ltd.
The high-performance polyurethane court material disclosed by the invention comprises the following components in percentage by weight: the composite material consists of a component A and a component B according to the mass ratio of (4.5-5.5): 1, wherein the component A comprises the following raw materials in percentage by mass: 20-25% of modified castor oil polyol, 5-10% of amine-terminated polyether, 0.5-0.7% of chain extender, 60-65% of filler, 1.5-3% of pigment, 0.7-2% of anti-settling agent, 2-3.5% of water absorbent, 0.2-0.4% of dispersing agent, 0.3-0.5% of antioxidant and 0.3-0.5% of ultraviolet absorbent;
the component B comprises the following raw materials in percentage by mass: 70-80% of isocyanate and 20-30% of polyether polyol.
The preparation method of the high-performance polyurethane court material comprises the following steps:
(1) And (3) a component A: adding modified castor oil polyol, amine-terminated polyether and a chain extender into a reaction kettle, stirring and heating to 60-70 ℃, then adding a filler, a pigment, an anti-settling agent, an ultraviolet absorber and an antioxidant, heating to 90-100 ℃, dehydrating for 2-3 hours under the vacuum degree of-0.1 MPa, adding a water absorbent and a dispersing agent, and stirring for 1-2 hours to obtain the component A.
(2) And the component B comprises the following components: and (3) adding isocyanate into a reaction kettle, uniformly stirring, adding polyether polyol, heating to 80-85 ℃, reacting for 1-2h under heat preservation, and cooling to 60 ℃ for discharging to obtain the component B.
(3) When in use, A, B components are mixed and paved on a field according to the mass ratio, and the high-performance polyurethane court material is prepared after normal-temperature curing.
Example 1
The high-performance polyurethane court material consists of a component A and a component B according to a mass ratio of 5:1, wherein the component A comprises the following raw materials in percentage by mass: 20% SY798, 10% LHD-1200, 0.5% ethylene glycol, 60% ground calcium carbonate, 3% ferric oxide green, 2% ZB-3000, 3.5%3A molecular sieve, 0.2% YRFC-03, 0.5% Irganox 1135, 0.3% Tinuvin 329;
The component B comprises the following raw materials in percentage by mass: 70% isocyanate (PM-200: mdi-50=1:1), 30% inovolc220.
The preparation method of the high-performance polyurethane court material comprises the following steps:
(1) And (3) a component A: putting SY798, LHD-1200 and ethylene glycol into a kettle, stirring and heating to 60 ℃, then putting heavy calcium carbonate, ferric oxide green, ZB-3000, tinuvin 329 and Irganox 1135, heating to 100 ℃, dehydrating for 2 hours under the vacuum degree of-0.1 MPa, putting 3A molecular sieve and YRFC-03, and stirring for 1 hour to obtain the component A.
(2) And the component B comprises the following components: and (3) putting PM-200 and MDI-50 with the mass ratio of 1:1 into a reaction kettle, uniformly stirring, then putting INOVOLC220,220, heating to 85 ℃, carrying out heat preservation reaction for 2 hours, and cooling to 60 ℃ for discharging to obtain the component B.
(3) When in use, A, B components are mixed and paved on a field according to the mass ratio of 5:1, and the high-performance polyurethane court material is prepared after curing at normal temperature.
Example 2
The high-performance polyurethane court material consists of a component A and a component B according to a mass ratio of 4.5:1, wherein the component A comprises the following raw materials in percentage by mass: 25% SY798, 5% LHD-1200, 0.7% ethylene glycol, 62% ground calcium carbonate, 2% ferric oxide green, 1.2% ZB-3000, 3%3A molecular sieve, 0.3% YRFC-03, 0.4% Irganox 1135, 0.4% Tinuvin 329;
the component B comprises the following raw materials in percentage by mass: 80% isocyanate (PM-200: mdi-50=2:1), 20% inovolc220.
The preparation method of the high-performance polyurethane court material comprises the following steps:
(1) And (3) a component A: putting SY798, LHD-1200 and ethylene glycol into a kettle, stirring and heating to 70 ℃, then putting heavy calcium carbonate, ferric oxide green, ZB-3000, tinuvin 329 and Irganox 1135, heating to 90 ℃, dehydrating for 3 hours under the vacuum degree of-0.1 MPa, putting 3A molecular sieve and YRFC-03, and stirring for 1.5 hours to obtain the component A.
(2) And the component B comprises the following components: and (3) putting PM-200 and MDI-50 with the mass ratio of 2:1 into a reaction kettle, uniformly stirring, then putting INOVOLC and 220, heating to 80 ℃, carrying out heat preservation reaction for 1h, and cooling to 60 ℃ for discharging to obtain the component B.
(3) When in use, A, B components are mixed and paved on a field according to the mass ratio of 4.5:1, and the high-performance polyurethane court material is prepared after normal-temperature curing.
Example 3
The high-performance polyurethane court material consists of a component A and a component B according to a mass ratio of 5.5:1, wherein the component A comprises the following raw materials in percentage by mass: 22% SY798, 7% LHD-1200, 0.6%1, 4-butanediol, 65% heavy calcium carbonate, 1.5% iron oxide green, 0.7% ZB-3000, 2%3A molecular sieve, 0.4% YRFC-03, 0.3% Irganox 1135, 0.5% Tinuvin 329;
the component B comprises the following raw materials in percentage by mass: 75% isocyanate (PM-200:MDI-50=1.5:1), 25% INOVOLC220.
The preparation method of the high-performance polyurethane court material comprises the following steps:
(1) And (3) a component A: putting SY798, LHD-1200 and 1, 4-butanediol into a kettle, stirring and heating to 65 ℃, then putting heavy calcium carbonate, ferric oxide green, ZB-3000, tinuvin 329 and Irganox 1135, heating to 95 ℃, dehydrating for 2.5 hours under the vacuum degree of-0.1 MPa, putting 3A molecular sieve and YRFC-03, and stirring for 1 hour to obtain the component A.
(2) And the component B comprises the following components: and (3) putting PM-200 and MDI-50 with the mass ratio of 1.5:1 into a reaction kettle, uniformly stirring, then putting INOVOLC220,220, heating to 83 ℃, carrying out heat preservation reaction for 1.5 hours, and cooling to 60 ℃ for discharging to obtain the component B.
(3) When in use, A, B components are mixed and paved on a field according to the mass ratio of 5.5:1, and the high-performance polyurethane court material is prepared after normal-temperature solidification.
Comparative example 1
This comparative example is identical to example 1, except that SY798 in component A is replaced with castor oil, and component A in comparative example 1 comprises the following raw materials in mass percent: 24% castor oil, 10% LHD-1200, 0.5% ethylene glycol, 56% heavy calcium carbonate, 3% ferric oxide green, 2% ZB-3000, 3.5%3A molecular sieve, 0.2% YRFC-03, 0.5% Irganox 1135, 0.3% Tinuvin 329; the raw materials of the component B and the mass percentage and the preparation method of the high-performance polyurethane court material are the same as those of the example 1.
Comparative example 2
This comparative example is identical to example 1, except that the amino-terminated polyether LHD-1200 in the A-component is replaced with INOVOL C220,220, an equivalent mass percent, the A-component in comparative example 2 comprising the following raw materials in mass percent: 20% SY798, 10% INOVOLC220, 0.5% ethylene glycol, 60% ground calcium carbonate, 3% ferric oxide green, 2% ZB-3000, 3.5%3A molecular sieve, 0.2% YRFC-03, 0.5% Irganox 1135, 0.3% Tinuvin 329; the raw materials of the component B and the mass percentage and the preparation method of the high-performance polyurethane court material are the same as those of the example 1.
Comparative example 3
This comparative example is identical to example 1, except that the SY798 in the A component is replaced with castor oil, the amine terminated polyether LHD-1200 is removed, and the A component in comparative example 3 comprises the following raw materials in mass percent: 24% castor oil, 10% inovolc220, 0.5% ethylene glycol, 56% ground calcium carbonate, 3% iron oxide green, 2% zb-3000, 3.5%3a molecular sieve, 0.2% yfc-03, 0.5% irganox 1135, 0.3% tinuvin 329; the raw materials of the component B and the mass percentage and the preparation method of the high-performance polyurethane court material are the same as those of the example 1.
Comparative example 4
This comparative example is identical to example 1 except that the isocyanate (PM-200: mdi-50=1:1) mixture in the B component is replaced with an equivalent mass percent PM-200, and the remaining raw material proportions and preparation methods are identical to example 1.
Comparative example 5
The difference from example 1 is that the water-absorbing agent 3A molecular sieve is put into process in the production method.
Wherein the raw materials of the component A and the component B have the same composition and mass percent as those in the embodiment 1.
The preparation method of the high-performance polyurethane court material comprises the following steps:
(1) And (3) a component A: putting SY798, LHD-1200 and ethylene glycol into a reaction kettle, stirring and heating to 60 ℃, then putting heavy calcium carbonate, a 3A molecular sieve, iron oxide green, ZB-3000, tinuvin 329 and Irganox 1135, heating to 100 ℃, dehydrating for 2 hours under the vacuum degree of-0.1 MPa, putting YRFC-03, and stirring for 1 hour to obtain the component A.
(2) And the component B comprises the following components: and (3) putting PM-200 and MDI-50 with the mass ratio of 1:1 into a reaction kettle, uniformly stirring, then putting INOVOLC220,220, heating to 85 ℃, carrying out heat preservation reaction for 2 hours, and cooling to 60 ℃ for discharging to obtain the component B.
(3) When in use, A, B components are mixed and paved on a field according to the mass ratio of 5:1, and the high-performance polyurethane court material is prepared after curing at normal temperature.
The polyurethane court materials prepared in examples 1-3 and comparative examples 1-5 were subjected to performance testing. Wherein, the operable time is tested according to GB/T7123.1-2015, the tensile strength and the breaking elongation are tested according to GB/T528-2009, the hardness is tested according to GB/T2411-2008, and the wear resistance is tested according to GB/T1768-2006 (test conditions: rubber grinding wheel model CS-10F, load 500g and revolution 1000 r). The test results are shown in Table 1.
TABLE 1 detection results
As can be seen from Table 1, the high performance polyurethane court materials prepared in examples 1-3 have significant performance advantages over the comparative examples. The mechanical property and the wear resistance of the polyurethane court material prepared in the comparative example 1 are reduced, because the castor oil molecular chain segment has no aromatic structure, so that the activity of the product is reduced, and the mechanical property and the wear resistance are poor; the activity strength is correspondingly reduced after the amino-terminated polyether is replaced in the comparative example 2; the polyurethane court material prepared in the comparative example 3 has long operation time and worst performance, because castor oil and polyether polyol are adopted, the product has low activity under the condition of no catalyst, self-catalysis cannot be realized, the curing is slower, the crosslinking strength of the product is poor, and the field use requirement cannot be met; comparative example 4, the isocyanate is replaced by PM-200 single substance from the mixture, the product activity is high, the operation time is shortened, and the paving construction cannot be performed on site; comparative example 5 the adjustment of the process changes the order of addition of the water absorbing agent 3A molecular sieve, and as a result, the mechanical properties of the product are remarkably reduced, because the water absorbing agent is put in before dehydration, a large amount of water is absorbed, the water absorbing property of itself is reduced, and the product is foamed and the physical properties are reduced. The comparison of comparative examples 1-5 shows that the modified castor oil polyol, the amine-terminated polyether and the chain extender are introduced, and the reasonable compounding of the isocyanate in the component B, the low oil absorption filler, the nonionic neutral dispersant and the water absorbent are cooperated, so that the operation leveling property is effectively improved, the self-catalysis can be realized without a catalyst, and the prepared product has excellent mechanical property, better wear resistance, strong operability and quick curing time.