Composition for sports coatings

FIELD: chemistry.

SUBSTANCE: composition for sports coatings contains oligobutadiene diol, a plasticiser, mineral filler, trifunctional low-molecular alcohol, polymethylene polyphenylene polyisocyanate with 29.5-31.0% content of isocyanate groups, an organotin catalyst, 2,4,6-tri-tertbutylphenol, polysulphide oligomer, isocynate prepolymer, aromatic diamine which is a mixture of 2,4- and 2,6-isomers of 3,5-dimethylthiotoluylenediamine in ratio of 80:20 and diatomite.

EFFECT: improved dynamic and physical-mechanical properties of coatings.

2 tbl

 

The invention relates to compositions for sports surfaces based on liquid hydrocarbon rubbers for the production of coatings of treadmills, roofing, waterproofing coatings pools, floor coverings and sports fields.

Known composition for the manufacture of elastic coatings, including low-molecular butadienestyrene rubber, calcium oxide, chalk, glycerin, catalyst retinoblastoma, the polyisocyanate and triethylmethylammonium [RF patent 2211850 C1, CL C09D 109/00, epubl].

Wide distribution by type of functionality butadienestyrene oligomer causes defects of the three-dimensional grid formed by curing polyisocyanate, which is a consequence of low levels of dynamic and physical-mechanical performance of the coating.

Known composition for coating playgrounds and waterproofing coatings, including hydroxyl-containing oligodontia copolymer of isoprene and butadiene, a plasticizer, mineral filler, trifunctionally low molecular weight alcohol, catalyst retinoblastoma, 2,4,6-tri-tertbutylphenol, the curing agent is a polyisocyanate, and optionally ethyl silicate [RF patent 2186812, 09D 109/00. Publ. 10.08.2002].

The disadvantage of these compositions is the low level of dynamic and physical-mechanical properties overiden the x elastomeric coatings.

Known composition for coatings, including oligomerization, plasticizer, mineral filler, trifunctionally low molecular weight alcohol, ORGANOTIN catalyst retinoblastoma, 2,4,6-tri-tertbutylphenol, the polyisocyanate and ethyl silicate [RF patent 2190002, CL 09D 109/00. Publ. 2002].

The disadvantage of these compositions is a low level of dynamic and physical-mechanical properties.

The closest solution of the present invention (the prototype) is the composition described in the method of obtaining a composition for coating [RF patent 2325418, 09D 175/08. Publ. 27.05.2008, bull. No. 15], including oligomerization, plasticizer, mineral filler, trifunctionally low molecular weight alcohol, ORGANOTIN catalyst retinoblastoma, 2,4,6-tri-tertbutylphenol, polymethylenepolyphenylisocyanate with the content of isocyanate groups of 29.5-31.0% and polysulfide oligomer with a ratio of components, parts by weight:

Oligopolization100
The plasticizer5-30
Mineral filler90-150
Trifunctionally low molecular weight alcohol 1-5
The specified polyisocyanate14-24
ORGANOTIN catalyst0,01-1,10
2,4,6-tri-tertbutylphenol0.5 to 1.5
Polysulfide oligomer5-15

Coatings of this composition are characterized by a lack of dynamic and physical-mechanical properties.

The technical result is to increase the dynamic and physical-mechanical properties of the compositions.

The technical result is achieved in that the composition for sports surfaces, including oligomerization, plasticizer, mineral filler, trifunctionally alcohol, polymethylenepolyphenylisocyanate with the content of isocyanate groups of 29.5-31.0%of, ORGANOTIN catalyst, 2,4,6-tri-tertbutylphenol, polysulfide oligomer, further comprises the isocyanate prepolymer, an aromatic diamine which is a mixture of 2,4 - and 2,6-isomers of 3,5-diethyltoluenediamine in the ratio of 80:20 and diatomite in the following ratio of components, parts by weight:

Oligopolization100
The plasticizer5-30
Mineral filler80-100
Trifunctionally low molecular weight alcohol1-5
The specified polyisocyanate14-24
ORGANOTIN catalyst0,01-1,10
2,4,6-tri-tertbutylphenol0.5 to 1.5
Polysulfide oligomer5-15
The isocyanate prepolymer10-30
Specified aromatic diamine3-6
Diatomite10-30

Introduction to the composition of the additional binder - isocyanate prepolymer having a large number of kinetically moving ester linkages, provides effective dissipation of stresses in the polymer matrix under dynamic loading. Using the specified aromatic diamine contributes to increasing the degree of transformation of functional groups of the isocyanate prepolymer. The stated number of isocyanate prepolymer and the aroma of the economic diamine determines the optimal ratio of crosslinked and linear chains in the polyurethane, consequently the obtained materials have superior dynamic and physico-mechanical properties. The presence of diatomite leads to structural formations that contribute to maintaining a given level of properties in the process of operation sports coverage.

As oligonucleotide in the composition is a copolymer of butadiene and isoprene SOPS-1K (TU 38.103342-88) with the ratio of monomers to 70:30; molecular weight 4000-5000; the content of hydroxyl groups, wt.%, of 0.75 to 0.89, and oligodactyly with a molecular weight of 2000-5000; index polydispersity of 1.20 and 1.35; viscosity Brookfield, PA/s (25°C), 8,5-22; content of terminal hydroxyl groups, %, 0,7-1,7; microstructure, %, 1,4-CIS 10-15, 1,4-TRANS 20-25, 1,2-(vinyl) 60-70; the distribution of HE-groups (RTF), %, misfunctional 2, monofunctional 6, bifunctional 92; density, kg/m3, 900-910 (oligodactyly Krasol LBH manufactured by Sartomer).

As the plasticizer composition comprises the compounds used in the production of elastomeric materials based on diene rubbers: alkyl(aryl)new esters of phthalic or phosphoric acid, chlorinated paraffin wax.

Fillers for rubber bases are mineral powders of average particle size, such as chalk, lime-dropout, calcium oxide, kaolin, talc.

2,4,6-tri-trimethylphenol represents a crystal of the static powder with green-yellow tint, soluble in hydrocarbons, and has the following characteristics: a melting point of 129-131°C, the mass fraction of ash not more than 0.05%. Obtained by alkylation of phenol with isobutylene in the presence of a catalyst. Trade name - the antioxidant P-23 (TU 6-14-26-77).

As polysulfide oligomer (JI) used liquid teocoli grades I, II and UXO-2, characterized srednekamennogo molecular weight 1700-5500; srednekamennogo functionality 2,22 of 2.68; content of SH-groups of 1,6-4,3; viscosity PA/s (25°C) 7.5 to 50 (GOST 12812-80, THE 38.50309-93).

Diatomite (TU 5761-001-25310144-99) is a light, porous rocks from white to yellowish-gray with medium density, varying from 0.15 to 0.6 g/cm3. Diatomite 96% consists of water silica (opal) General formula SiO2·mo2O.

As trifunctional low molecular weight alcohol in the composition used glycerin, triethanolamine or trimethylolpropane.

As MDI in the composition used polymethylenepolyphenylisocyanate received by postironium condensation products of aniline with formaldehyde (TU 2224-152-04691277-96). The content of isocyanate groups of 29.5-31%.

As the ORGANOTIN catalyst is used octoate tin, dibutylthiourea tin (TU 6-02-818-78)may be used and other roworganized is their connection, used for the synthesis of polyurethanes.

As the isocyanate prepolymer is used, the prepolymer brand "Tripol-M", SKU-PFL-100, SKU-PPT-4503, ADV-17.

As the aromatic diamine in the composition of a mixture of 2,4 - and 2,6-isomers of 3,5-diethyltoluenediamine in the ratio of 80:20, mark Etacure 300.

In the composition can be introduced additives, imparting to the coating material other benefits. As a component for reducing consumption of the composition for the manufacture of a unit area, is used crumb rubber, to improve the appearance of the composition can be introduced pigments. For the manufacture of a composition for sports surfaces using mixing equipment to ensure homogenization with the degree of milling of solid particles not more than 100 μm. The polyisocyanate and the catalyst retinoblastoma supplied complete with song and add it on the spot paving. Rubber crumb vmeshivat in the composition prior to administration of the compound.

The invention is illustrated by the following example 1 (composition 1, table 1).

Example 1. In a mixer with anchor stirrer displacement of 0.05 l load 15 g polysulfide oligomer, 5 g trifunctional low molecular weight alcohol and stirred for 10 minutes the resulting mixture is discharged into a glass and incubated for 30 minutes at the same time the mixer with anchor stirrer 1 liter load of 100 g oligonucleotide SOPS-IK, 70 g of chalk, 10 g of lime-dropout, 5 g of dibutyltindilaurate, 0.1 g of octoate tin, 0.5 g of 2,4,6-tri-tertbutylphenol, 10 g of isocyanate prepolymer brand "Tripol-M, 3 g of an aromatic diamine, 30 g of diatomite. Mixing of the components should be performed within 30 min, and then add a perfect mixture of polysulfide oligomer and trifunctional low molecular weight alcohol and stirred for 10 minutes the resulting mixture was added 10 g of crumb rubber, 24 g of MDI and again stirred for 8 minutes the mixture is poured into molds and incubated for 20-25 days at a temperature of 18-25°C.

Similarly prepared composition composition 2-10 in example 1.

The composition of all investigated compositions are given in table 1. Properties of samples of the coatings of the compositions are shown in table 2.

Samples of the coating were tested according to GOST 263-75, GOST-275-75, GOST 6950-73, GOST-2678-88 and methods (Kusinski E.V., E.A. Sidorovich Pendulum elastomer KS. Journal of theoretical physics, 1957, T. 26, s-886. Sidorovich. E.A., Kusinski E.V. Study of shock compression of rubber. // Physics of the solid body. 1961, T, s-3494) and (Medvedev, V.P. Development of elastomeric coatings for sports facilities on the basis of the analysis of the interaction of elements in the system musculoskeletal system sportsman-coating". Discard. technology. Sciences. Volgograd, 1989).

From table 2 it is visible, Casablanca composition provides coatings with a higher dynamic and complex physical-mechanical characteristics. The increase of the complex mechanical properties is achieved through the use of isocyanate prepolymer in combination with an aromatic diamine and diatomite.

Table 2
Properties of compositions for sports surfaces
IndicesValuesA prototype RF patent 2325418
12345678910
Hardness shore a, usled6763546359403250565856
Conditional tensile strength, kgf/cm2 3,63,43,53,43,41,20,572,03,12,83,3
Elongation, %23020021020021013034755210200220
Ball rebound resilience, %5849504740302040474549
Dynamic modulus of elasticity, MPa6,56,26,46,06,22,42,7 5,65,8of 5.45,9
The tangent of mechanical loss0,110is 0.1020.104 gto 0.1080,1200,3180,3020,3510,1190,114to 0.108
The decrement of damping of the oscillating system "sample-head", with-1137142134151134237243234243254220
The ratio of relaxation time to time, τ/T0,970,991,251,051,991,451,511,54of 1.571,481,39

As can be seen from tables 1 and 2, when the isocyanate content of the prepolymer is less than 10 parts by weight of the coating has a lower level of the complex properties due to the significant deviation of the ratio of NCO:OH of equimolecular and reduce the density of the stitching. When large amounts of prepolymer properties are also reduced due to an excess of isocyanate groups, the tendency to foaming and increase the rigidity of the cured product.

The amount of aromatic diamine (Etacure 300), as well as the number of isocyanate prepolymer has a significant impact on the properties of the coatings. When the content Etacure 300 less than 3 parts by weight decreases the degree of crosslinking, is not achieved the effect of increasing the dynamic and physical-mechanical properties.

The decrease and increase in the degree of filling of diatomite from the stated limits leads to lower level properties of sports surfaces due to the insufficient number of structural units obtained during curing.

Thus, the advantage of using the proposed composition is the increase in dynamic and physico-mechanical properties of sports surfaces.

Composition for sports surfaces, including oligomerization, plasticizer, mineral filler, trifunctionally low molecular weight alcohol, polymethylenepolyphenylisocyanate with the holding isocyanate groups of 29.5-31.0%of, ORGANOTIN catalyst, 2,4,6-tri-tertbutylphenol, polysulfide oligomer, characterized in that it further comprises the isocyanate prepolymer, an aromatic diamine, which is a mixture of 2,4 - and 2,6-isomers of 3,5-diethyltoluenediamine in the ratio of 80:20 and diatomite in the following ratio of components, parts by weight:

Oligopolization100
The plasticizer5-30
Mineral filler80-100
Trifunctionally low molecular weight alcohol1-5
The specified polyisocyanate14-24
ORGANOTIN catalyst0,01-1,10
2,4,6-tri-tertbutylphenol0.5 to 1.5
Polysulfide oligomer5-15
The isocyanate prepolymer10-30
Specified aromatic diamine3-6
Diatomite10-30



 

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1 ex, 2 tbl

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2 tbl

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2 tbl, 2 ex

FIELD: chemistry.

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2 tbl

Coating composition // 2331661

FIELD: chemistry.

SUBSTANCE: composition for coating race tracks, sports halls, roofs and waterproof coating contains oligobutadienediol, glycerine, mineral filler, polyisocyanate, organo-tin catalyst, 2,4,6-tri-tretbutylphenol, ethylsilicate, polysulfide oligomer - liquid thiocols with average molecular weight of 1700-5500 and viscosity of 7.5-50 Pa·s at 25°C, zinc oxide, diatomite, surface active substance.

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2 tbl, 2 ex

FIELD: inorganic chemistry.

SUBSTANCE: method is applied for production of coating compositions for run tracks, gyms, roof and hydraulic insulating coatings. Mixture of oligodienediol, mineral filler, plasticizer, urethane catalyst-organotin catalyst and 2,4,6-tri-tret-butyl phenol are added to premixed composition of trifunctional low-molecular alcohol and polysulphide oligomer with further after-mixture addition of polymethylenepolyphenylenepolypolyisocyanate with isocyanate groups content 29.5-31.0%. Technical result is improved dynamic parameters and physical-mechanical properties of coating.

EFFECT: improvement of dynamic parameters and physical-mechanical properties of coating.

2 tbl

FIELD: chemistry of polymers.

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EFFECT: valuable technical properties of system.

14 cl, 7 tbl

FIELD: chemistry of polymers, covers.

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EFFECT: improved and valuable technical properties of composition.

1 tbl, 29 ex

FIELD: chemistry.

SUBSTANCE: invention relates to coating compositions, particularly coating compositions with a decorative effect, which enable to obtain multi-colour and/or different-tone surfaces when applied once. Initially, the single-colour coating composition contains a first dye, a thickener, a surfactant or a mixture of surfactants with hydrophilic-lipophilic balance (HLB) less than 9 or greater than 11 and binder. All components are dispersed or dissolved in an organic solvent and water. After deposition of the said composition in form of a film onto a substrate surface which is a wall or ceiling panel, the first dye becomes incompatible with the said composition, as a result of which a portion of the first dye migrates towards the outer face of the panel while the coating composition is still in liquid state. Additional decorative effects are achieved by sliding the surface using a putty spittle or some other instrument while the coating composition is still in liquid or quasi-liquid state. The set for applying the decorative coating onto the surface contains the said composition and a label.

EFFECT: obtaining a ready coating having two differently-coloured zones, colour contrast (ΔE) between which is greater than 0,25.

23 cl, 5 tbl, 5 ex

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