CN103980458B - Sports field wearing layer material prepared by polyurethane elastomer and preparation method thereof - Google Patents
Sports field wearing layer material prepared by polyurethane elastomer and preparation method thereof Download PDFInfo
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- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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- C08G18/40—High-molecular-weight compounds
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention discloses a kind of sports field wearing layer material prepared by polyurethane elastomer and preparation method thereof, comprise 1) polyether Glycols is vacuumized, add diphenylmethanediisocyanate reaction preparation component A; 2) high activity polyether trivalent alcohol, pigment and thixotropic agents, thixotropic agent are obtained B component after mix and blend, grinding evenly under normal temperature; 3) by component A and B component after 1:2 ~ 1:3 stirring and evenly mixing, be sprayed in polyurethane elastomer basic unit equably, under normal temperature spontaneous curing shaping after can obtain wearing layer material of the present invention.The present invention is by adopting thixotropic effect ambient cure method, do not use any particulate component affecting wearing layer material lifetime, the mechanical property of stadium wearing layer material is greatly strengthened, tensile strength amplification can reach more than 20%, elongation rate of tensile failure can amplification 30-40%, thus significantly improve the wear resisting property of sports field, and extend the work-ing life of sports field.
Description
Technical field
The present invention relates to a kind of polyurethane material and preparation method thereof, be specifically related to a kind of sports field wearing layer material prepared by polyurethane elastomer and preparation method thereof, belong to field of polymer composite material.
Background technology
Polyurethane material has high-strength wearable, high resilience because of it, is the optimal selection of domestic and international sports field (as: track and field runway) pavement material.The polyurethane material that the existing sports field of China uses is made up of two component usually, and wherein, component A is the performed polymer that polyethers and isocyanic ester are mixed; B component is made up of polyethers, chainextender and filler, at the construction field (site), carry out after A, B component are mixed by a certain percentage scene pave make polyurethane elastomer basic unit (bottom), and a kind of preparation method of wearing layer (surface layer) is the pure glue of 1 ~ 2mm that paves on basic unit, and above before it is cured antiskid particles EPDM or polyurethane particles (particle diameter is generally 3 ~ 5mm) being sprinkling upon, by clean for the cleaning of unnecessary particle after its solidification, by glue, particle bond is formed wearing layer together.Adopt the granule type wearing layer that this kind of preparation method obtains, no-reflection point, good springiness, easy cleaning, but there is the easy threshing of antiskid particles, the defect that not wear-resisting, work-ing life is short.Also have a kind of method to be pure glue and antiskid particles EPDM or polyurethane particles (particle diameter is generally 1 ~ 3mm) are mixed, it is sprayed on equably in the polyurethane elastomer basic unit made with spraying machine.Adopt the spary coating type wearing layer that this kind of method is obtained, antiskid particles not easily threshing, comparatively wear-resisting, but there is reflective spot, poor flexibility, work-ing life shorter and defect that is not easy cleaning.No matter adopt which kind of method above-mentioned to prepare wearing layer, granular mass directly affects the work-ing life of wearing layer.In addition, adopt the wearing layer that above-mentioned two kinds of methods are obtained, also there is the defect of many other sides, as: Mechanical Properties of Polyurethane Elastomers is low, especially manufacturing firm is in order to reduce costs, the filler content in elastomerics B component can be rolled up, result in that Mechanical Properties of Polyurethane Elastomers declines, wear resisting property difference and the consequence such as cohesive force is bad.Its result must aggravate the threshing, not wear-resisting of polyurethane elastomer material nature, causes wearing layer to come off gradually, substantially reduces the work-ing life in place.Moreover, adopt aforesaid method, all need to use a large amount of solvent and heavy metal catalyst in paving process, be unfavorable for the physical and mental health of constructor, also can affect the ecotope around place, and the daily maintenance cost in place is higher.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of environment-friendly type sports field wearing layer material prepared by polyurethane elastomer is provided, there is wear resisting property good, the feature of long service life.Present invention also offers a kind of preparation method of this wearing layer material.
For achieving the above object, the present invention is by the following technical solutions:
The sports field wearing layer material prepared by polyurethane elastomer, described wearing layer material is made up of by weight 1:2 ~ 1:3 elastomerics component A and B component, wherein,
By weight percentage, the composition of described component A and weight percent are:
Diphenylmethanediisocyanate 25 ~ 45%;
Polyether Glycols 55 ~ 75%;
By weight percentage, the composition of described B component and weight percent are:
Preferably: described diphenylmethanediisocyanate is 4,4 '-diphenylmethanediisocyanate and/or 2,4 '-diphenylmethanediisocyanate.
Preferably: described polyether Glycols is propanediol polyoxypropylene ether.
Preferably: described high activity polyether trivalent alcohol is glycerol polyethenoxy ether.
Preferably: described thixotropic agent is one or more in gas-phase silica, fibrous talc, hydrated aluminium silicate, calcium carbonate, Shawinigan black.
Preferably: described thixotropic agents is one or more in the mixture of thanomin, trolamine, dimethyl sulfoxide (DMSO), dimethyl sulfoxide (DMSO) and diethanolamine, ammoniacal liquor, morpholine.
Preferably: described pigment is iron oxide red or lemon yellow-phthalocyanine green mixture.
Another object of the present invention, a kind of preparation method of sports field wearing layer material as above, comprises following preparation process:
1) component A preparation: polyether Glycols is stirred at 70 ~ 90 DEG C, carry out vacuumizing the degassed process of dehydration after 1 ~ 3 hour, be cooled to 40 ~ 60 DEG C, slowly add diphenylmethanediisocyanate, and react 1 ~ 3 hour at 70 ~ 90 DEG C, be cooled to room temperature for subsequent use;
2) B component preparation: high activity polyether trivalent alcohol, pigment and thixotropic agents are stirred under normal temperature, grinds evenly, add thixotropic agent, for subsequent use after stirring, grinding evenly;
3) preparation of polyurethane elastomer wearing layer material: by above-mentioned steps 1) and 2) in component A obtained respectively and B component, by weight being 1:2 ~ 1:3 mixing and stirring formation sizing material under normal temperature, then be sprayed in shaping polyurethane elastomer basic unit equably, under normal temperature spontaneous curing shaping after.
Preferably: described sizing material is sprayed in polyurethane elastomer basic unit equably with droplet shape, make its surface presentation regular concavo-convex surface layer, and sizing material is without mobility.
Preferably: described thixotropic agent is one or more in gas-phase silica, fibrous talc, hydrated aluminium silicate, calcium carbonate, Shawinigan black; Described thixotropic agents is one or more in the mixture of thanomin, trolamine, dimethyl sulfoxide (DMSO), dimethyl sulfoxide (DMSO) and diethanolamine, ammoniacal liquor, morpholine.
Beneficial effect of the present invention is, sports field wearing layer material of the present invention is by adopting thixotropic effect ambient cure method, do not use any particulate component affecting wearing layer material lifetime, the mechanical property of stadium wearing layer material is greatly strengthened, tensile strength amplification can reach more than 20%, elongation rate of tensile failure can amplification 30-40%, thus substantially increases the wear resisting property of sports field, and extends the work-ing life of sports field.In addition, sports field wearing layer material of the present invention not only meets International Track and Field Association's proposal and does not use these two kinds of chemical substances of TDI-MOCA to produce paving material for sports field, and all do not add any solvent and heavy metal catalyst from producing to whole process of mating formation, improve the construction environment of working-yard, not only can solve the inconvenience that place routine maintenance is brought, reduce place routine maintenance expense, return sportsmen and bring more comfortable satisfied limbs sensation, be conducive to sportsmen and create more excellent achievement.
Embodiment
Below in conjunction with specific embodiment, the specific embodiment of the present invention is described further.But the present invention is not limited in following embodiment.Unless otherwise noted, each raw material adopted in the present invention is all bought can obtain by market.
The sports field wearing layer material prepared by polyurethane elastomer of the present invention, be made up of for 1:2 ~ 1:3 by weight elastomerics component A and B component, wherein, the composition of component A and weight percent are:
Diphenylmethanediisocyanate 25 ~ 45%;
Polyether Glycols 55 ~ 75%;
The composition of B component and weight percent are:
Further, described diphenylmethanediisocyanate is 4,4 '-diphenylmethanediisocyanate and/or 2,4 '-diphenylmethanediisocyanate; Described polyether Glycols to be molecular weight be 1000 ~ 4000 propanediol polyoxypropylene ether; Described high activity polyether trivalent alcohol is glycerol polyethenoxy ether, and molecular weight is 4800; Described thixotropic agent is one or more in gas-phase silica, fibrous talc, hydrated aluminium silicate, calcium carbonate, Shawinigan black; Described thixotropic agents is one or more in the mixture of thanomin, trolamine, dimethyl sulfoxide (DMSO), dimethyl sulfoxide (DMSO) and diethanolamine, ammoniacal liquor, morpholine; Described pigment is iron oxide red or lemon yellow-phthalocyanine green mixture.
The preparation method of sports field wearing layer material of the present invention, comprises following preparation process:
1) component A preparation: polyether Glycols is stirred at 70 ~ 90 DEG C, carry out vacuumizing the degassed process of dehydration after 1 ~ 3 hour, be cooled to 40 ~ 60 DEG C, slowly add diphenylmethanediisocyanate, and react 1 ~ 3 hour at 70 ~ 90 DEG C, be cooled to room temperature for subsequent use;
2) B component preparation: high activity polyether trivalent alcohol, pigment and thixotropic agents are stirred under normal temperature, grinds evenly, add thixotropic agent, stir, material does shearing motion under external force, make material that good thixotropic effect occur, and for subsequent use after grinding evenly;
3) preparation of polyurethane elastomer wearing layer material: by above-mentioned steps 1) and 2) in component A obtained respectively and B component, by weight being 1:2 ~ 1:3 mixing and stirring formation sizing material under normal temperature, to produce good thixotropic effect, then be sprayed in shaping polyurethane elastomer basic unit equably by spray gun, under normal temperature spontaneous curing shaping after can form the wearing layer of polyurethane plastic runway of the present invention.Further, for promoting the performance of wearing layer, in spraying process, sizing material in polyurethane elastomer basic unit, make its surface presentation go out regular concavo-convex surface layer, and sizing material is without mobility with droplet shape even application.
Embodiment 1
A kind of track and field runway is mated formation and is used wearing layer surfacing material, and its preparation process comprises:
1) component A preparation: the propanediol polyoxypropylene ether (molecular weight 2000) and propanediol polyoxypropylene ether (molecular weight 4000) that are respectively 59% and 9% based on component A total amount are joined in reactor, stir at 90 DEG C, 50 DEG C are cooled to after vacuumizing the degassed process 2h of dehydration, then 4 based on component A total amount 32% are slowly added, 4 '-diphenylmethanediisocyanate, and react 2h at 80 DEG C after, be cooled to room temperature for subsequent use;
2) B component preparation: the glycerol polyethenoxy ether (molecular weight 4800), iron oxide red or lemon yellow-phthalocyanine green mixture, the dimethyl sulfoxide (DMSO) that are respectively 80%, 8% and 4% based on B component total amount are joined in reactor, stir under normal temperature, grind evenly, the gas-phase silica based on B component total amount 8% is added in reactor, and for subsequent use after mix and blend, grinding evenly under normal temperature;
3) preparation of polyurethane elastomer wearing layer material: by above-mentioned steps 1) and 2) in component A obtained respectively and B component, by weight being 1:2 abundant mixing and stirring formation sizing material under normal temperature, to produce good thixotropic effect, then by spray gun, sizing material is sprayed in shaping polyurethane elastomer basic unit with droplet shape equably, its surface presentation is made to go out regular concavo-convex surface layer, and sizing material is without mobility, then under normal temperature spontaneous curing shaping after can form the wearing layer of described polyurethane plastic runway.
Embodiment 2
A kind of track and field runway is mated formation and is used wearing layer surfacing material, and its preparation process comprises:
1) component A preparation: the propanediol polyoxypropylene ether (molecular weight 2000) and propanediol polyoxypropylene ether (molecular weight 1000) that are respectively 42.7% and 20% based on component A total amount are joined in reactor, stir at 80 DEG C, 50 DEG C are cooled to after vacuumizing the degassed process 2h of dehydration, then 4 based on component A total amount 37.3% are slowly added, 4 '-diphenylmethanediisocyanate and 2, 4 '-mixtures of diisocyanates and diphenylmethane (wherein, 4, 4 '-diphenylmethanediisocyanate and 2, the mass ratio of 4 '-diphenylmethanediisocyanate is 1:1), and react 2h at 80 DEG C after, be cooled to room temperature for subsequent use,
2) B component preparation: the glycerol polyethenoxy ether (molecular weight 4800), iron oxide red or lemon yellow-phthalocyanine green mixture, the trolamine that are respectively 85%, 8% and 3% based on B component total amount are joined in reactor, under normal temperature after mix and blend, grinding evenly, in reactor, add the gas-phase silica and the calcium carbonate that to be respectively 3% and 1% based on B component total amount, and be uniformly mixed under normal temperature, grind evenly for subsequent use;
3) preparation of polyurethane elastomer wearing layer material: by above-mentioned steps 1) and 2) in component A obtained respectively and B component, by weight being 1:3 abundant mixing and stirring formation sizing material under normal temperature, to produce good thixotropic effect, then by spray gun, sizing material is sprayed in shaping polyurethane elastomer basic unit with droplet shape equably, its surface presentation is made to go out regular concavo-convex surface layer, and sizing material is without mobility, then under normal temperature spontaneous curing shaping after can form the wearing layer of described polyurethane plastic runway.
By wearing layer material obtained in embodiment 1 and embodiment 2, carry out Performance Detection by GB/T14833-2011, its detected result is as shown in table 1:
Table 1 wearing layer material property detected result
| Interventions Requested | Unit | National standard | Granule type | Spary coating type | Embodiment 1 | Embodiment 2 |
| Shock absorption | ％ | 35-50 | 36 | 37 | 39 | 39 |
| Vertical deformation | mm | 0.6-2.5 | 1.6 | 1.5 | 1.7 | 1.6 |
| Antiskid value | BPN20℃ | ≥47 | 49 | 50 | 59 | 60 |
| Tensile strength | MPa | ≥0.5 | 0.9 | 0.8 | 1.0 | 1.0 |
| Elongation rate of tensile failure | ％ | ≥40 | 77 | 81 | 110 | 140 |
| Flame retardant resistance | Level | I | I | I | I | I |
From the detected result of table 1, the antiskid value of the wearing layer surfacing material that the present invention obtains, tensile strength and elongation rate of tensile failure are all considerably beyond the numerical value of national Specification, and have also exceeded the numerical value of granule type and spary coating type wearing layer material, substantially increase the wear resisting property of sports field, the work-ing life of place 3-5 can be extended.
Wearing layer surfacing material of the present invention is by adopting thixotropic effect ambient cure method, particle diameter is little, specific surface area is large to utilize thixotropic agent to have, oh group forms the characteristic that hydrogen bond presents " three-dimensional netted " structure, improving material apparent viscosity easily and in polyethers, make material when there being external force to do shearing motion, material apparent property reduces, good flowing properties, along with shearing rate increases, compound viscosity reduces; And when static, sizing material apparent viscosity improves rapidly, the thixotropic effect of generation is also just obvious gradually.And, in order to strengthen the thixotropic property of thixotropic agent, the present invention is solved by a small amount of thixotropic agents of interpolation and makes production operation mixing difficulty, mixing of materials uneven because thixotropic agent consumption is excessive, and then the difficult problem causing product mechanical property and cementability to decline, sizing material can be reached mechanical property and cementability that best thixotropic property can significantly improve again product.Simultaneously, because thixotropic agent specific surface area is large, the adsorbable large quantity of moisture in surface, oh group active in moisture in large quantity of air and polyethers can be carried secretly when stirring, and there is complicated chemical reaction in component A prepolymer between unnecessary-NCO component, material is when spraying on polyurethane substrate, under external force, after fully contacting with substrate surface, cohesive force between remarkable enhancing and basic unit, the apparent viscosity of material improves rapidly, and without mobility, material generation thixotropic effect reaches optimum regime, until solidification gathering is formed concavo-convex completely.
Specific embodiment described in the invention is only for the detailed description of the specific implementation process of the sports field wearing layer material prepared by polyurethane elastomer to the present invention, instead of the restriction to its preparation method.Any modification of carrying out this product and improvement, the substituting and using of similar or close material in the scope of the claims or category, all belongs to scope of patent protection of the present invention.
Claims (6)
1. the sports field wearing layer material prepared by polyurethane elastomer, is characterized in that: described wearing layer material is made up of by weight 1:2 ~ 1:3 elastomerics component A and B component, wherein,
By weight percentage, the composition of described component A and weight percent are:
Diphenylmethanediisocyanate 25 ~ 45%;
Polyether Glycols 55 ~ 75%;
By weight percentage, the composition of described B component and weight percent are:
Wherein: described high activity polyether trivalent alcohol is glycerol polyethenoxy ether, molecular weight is 4800;
Described thixotropic agent is one or more in gas-phase silica, fibrous talc, hydrated aluminium silicate, calcium carbonate, Shawinigan black;
Described thixotropic agents is one or more in the mixture of thanomin, trolamine, dimethyl sulfoxide (DMSO), dimethyl sulfoxide (DMSO) and diethanolamine, ammoniacal liquor, morpholine.
2. wearing layer material according to claim 1, is characterized in that: described diphenylmethanediisocyanate is 4,4 '-diphenylmethanediisocyanate and/or 2,4 '-diphenylmethanediisocyanate.
3. wearing layer material according to claim 1, is characterized in that: described polyether Glycols is propanediol polyoxypropylene ether.
4. wearing layer material according to claim 1, is characterized in that: described pigment is iron oxide red or lemon yellow-phthalocyanine green mixture.
5. a preparation method for sports field wearing layer material as claimed in claim 1, is characterized in that: comprise following preparation process:
1) component A preparation: polyether Glycols is stirred at 70 ~ 90 DEG C, carry out vacuumizing the degassed process of dehydration after 1 ~ 3 hour, be cooled to 40 ~ 60 DEG C, slowly add diphenylmethanediisocyanate, and react 1 ~ 3 hour at 70 ~ 90 DEG C, be cooled to room temperature for subsequent use;
2) B component preparation: high activity polyether trivalent alcohol, pigment and thixotropic agents are stirred under normal temperature, grinds evenly, add thixotropic agent, for subsequent use after stirring, grinding evenly;
3) preparation of polyurethane elastomer wearing layer material: by above-mentioned steps 1) and 2) in component A obtained respectively and B component, by weight being 1:2 ~ 1:3 mixing and stirring formation sizing material under normal temperature, then even application is in polyurethane elastomer basic unit, under normal temperature spontaneous curing shaping after;
Wherein: described sizing material in polyurethane elastomer basic unit, make its surface presentation regular concavo-convex surface layer, and sizing material is without mobility with droplet shape even application.
6. preparation method according to claim 5, is characterized in that: described thixotropic agent is one or more in gas-phase silica, fibrous talc, hydrated aluminium silicate, calcium carbonate, Shawinigan black; Described thixotropic agents is one or more in the mixture of thanomin, trolamine, dimethyl sulfoxide (DMSO), dimethyl sulfoxide (DMSO) and diethanolamine, ammoniacal liquor, morpholine.
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| CN104403079B (en) * | 2014-11-28 | 2017-04-05 | 北京艾施姆科技有限公司 | A kind of polymeric material of quick reparation asphalt pavement crack and preparation method thereof |
| CN105885667A (en) * | 2016-05-03 | 2016-08-24 | 厦门冠力塑胶科技有限公司 | Environment-friendly wear-resistant plastic stadium surface material and manufacturing method thereof |
| WO2018035702A1 (en) * | 2016-08-23 | 2018-03-01 | 江门市长河化工实业集团有限公司 | In-situ sprayed-up beaded mesh running track surface and preparation method therefor |
| CN108299621A (en) * | 2018-02-09 | 2018-07-20 | 山东赢方体育产业有限公司 | A kind of environment-friendly type plastic rubber runway and preparation method thereof |
| CN110643015A (en) * | 2019-09-27 | 2020-01-03 | 山东一诺威聚氨酯股份有限公司 | High-wear-resistance high-strength polyurethane court material and preparation method and use method thereof |
| CN111995729B (en) * | 2020-08-31 | 2022-04-19 | 山东一诺威聚氨酯股份有限公司 | Soft-segment crosslinked thermoplastic polyurethane elastomer and preparation method thereof |
| CN115011101B (en) * | 2022-07-14 | 2023-11-21 | 江苏长诺运动场地新材料有限公司 | High-suspension-property double-component polyurethane slurry and preparation method thereof |
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