RU2572098C1 - Raw composition for manufacturing of floor rubber-polymer boards - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: raw composition for manufacturing of floor rubber-polymer boards, containing, wt %: polyurethane binder 10-12, solution of pine resin in gum spirit (in terms of resin) 0.1-0.5, crushed rubber mechanically activated by grinding in a planetary mill with the particle size (1-3) mm - balance.

EFFECT: increased bactericide properties.

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Description

The invention relates to construction, livestock, to the rubber industry, to the field of waste recycling of rubber products, such as car tires, and can be used in the manufacture of floor rubber-polymer plates with a natural bactericidal component, in particular for livestock buildings.

The purpose of the invention is to impart bactericidal properties to the composition for the manufacture of rubber-polymer plates and, indirectly, rubber-polymer plates.

The composition for the manufacture of floor-mounted rubber-polymer plates contains crushed rubber, mechanically activated when grinding on a planetary mill, (10 ÷ 12)% of one-component polyurethane binder, for example WANNATE 6112, polyurethane binder TU 2224-001-40314300-2015 or any similar, forming with rubber crumb elastic, wear-resistant coating, (0.1 ÷ 0.5)% resin of pine or other conifers with bactericidal properties, dissolved in gum turpentine (GOST 1571-82) in a concentration of 20-50%, which ensures the viscosity of the solution, facilitates moiety uniform distribution of resin in the composition.

The floors of livestock buildings, covered with plates made from the proposed raw material composition, contribute to the improvement of sanitary conditions in livestock buildings, while reducing the cost of caring for animals.

Known thermo-waterproofing mass for the preparation of plates (Kornetskiy A.E .; Vorotnikov B.Yu .; Kornetskiy Yu.A .; Pochechura V.N., patent 2138459, 1997), including a thermoplastic polymer, plasticizer and bitumen, but it is not suitable for the manufacture of floors of livestock buildings, as their physical and mechanical indicators do not meet the hygiene requirements for floors of animals.

A known composition for the manufacture of floor slabs in livestock buildings containing bitumen, cement, a fibrous additive (polypropylene fiber), a mineral filler (staurolite), and a water repellent (water emulsion of an alloy of paraffin and petrolatum) (M.I. Gusev, V.A. Podrezov and VV Nesterov, Raw material mixture for the manufacture of floor plates of livestock buildings, Patent SU 685680. 1977). Also known is a composition for the manufacture of floor slabs in livestock buildings, containing shungizite, limestone, bitumen and paraforms to give the slabs bactericidal properties (Bortnikov AM, Dunin I.M., Drelyush M.G. Production of floor slabs for livestock buildings. RF patent №2101250 ) However, bitumen during long-term contact is far from harmless (Walter D. Untersuchungen zum Gehalt von arbeitsmedizinisch-toxikologisch relevanten Inhaltsstoffen in Bitumen und Bitumen-Emissionen sowie human-experimented Versuche zu deren dermalen Resorption - Inauguraldissuation.Germans, Dücken, Göbersen, Gösen, .; Emmel, C .; Rühl, R .; Kleine, H. Expositionsbeschreibungen für Dämpfe und Aerosole aus Bitumen. Gefahrstoffe - Reinhalt. Luft 70, 2010, No. 7/8, S. 291-295), and the paraform constantly emits a small the amount of formaldehyde, with prolonged contact causing systemic disorders in the work of all organs, including the brain, liver and heart, and possibly having carcinogenic properties (J.T. Yates Jr., T.E. Madey, M.J. Dresse r “Adsorption and decomposition of formaldehyde on tungsten (100) and (111) crystal planes.” Journal of Catalysis, 30, 2, P. 260-275, M .: Big Russian Encyclopedia, 1973, Chemical Encyclopedia. 115-116. 1998).

Known composition closest to the claimed invention, used for the manufacture of pavement coatings, playgrounds and sports grounds. The composition contains a rubber crumb filler and a binder based on polyurethane (KN Bastuev. Method of coating manufacture. Patent RU No. 2465294, 2011). However, these products, suitable even for covering playgrounds and very suitable in physical and chemical properties for comfortable keeping animals, cannot be used as floor coverings in livestock buildings, because they do not provide the necessary sanitary and hygienic conditions for keeping small and large S.- x animals (Davydov V.U., Evdokimov P.D., Kiselev A.I., Kononov G.A., Kuznetsov A.K., Kuznetsov A.F., Semenov B.S., Smirnov A.M., Sokolova M.A., Fedorov V.V., Khokhrin S.N., Scherbakov G.G. A textbook on non-communicable diseases for an animal veterinary operator. M., Kolos, 1982, 544 pp.).

The problem to which the invention is directed is the creation of a composition for the manufacture of rubber-polymer plates with bactericidal properties.

The solution to this problem is ensured by the fact that the inventive raw material composition for the manufacture of floor rubber-polymer plates contains (10 ÷ 12)% of a one-component polyurethane binder, for example WANNATE 6112, which forms an elastic, wear-resistant coating with rubber crumb; (0.1 ÷ 0.5)% resin of pine, dissolved in gum turpentine at a concentration of 20-50%, crushed mechanically activated when grinding on a planetary mill rubber with particle sizes (1 ÷ 3) mm - the rest.

The technical result provided by the given set of features is:

- the creation of a composition for producing elastic, heat-saving both water-permeable and waterproof wear-resistant rubber-polymer plates with antibacterial properties, suitable, including, for use in livestock buildings;

- expanding the scope of the product for the utilization of tires, rubber products, as well as waste rubber products, i.e. along the way, the problem of recycling industrial waste is solved;

- an increase in the variety of properties of floor rubber-polymer coatings that facilitate the optimization of the process of their choice for use in specific production conditions.

The mechanical activation of rubber crumb in the inventive mixture, ensuring its reactivity and, as a result, higher mechanochemical properties of products made from it, is due to the use of a planetary mill, for example, OZOD 2006 (Balabekov M., Balabekov S., Jovanovic D. Comminution of granulated material Patent Application WO / 2002/005963, Device for and method of reducing rubber, European Patent Application EP 1172148), in which grinding tools are two opposed rotating discs with steel fingers, the surface of which is coated with an abrasion resistant material.

The effect of mechanical activation was identified by the speed of impregnation of the crushed product (Akopyan VB, Stupin A.Yu., Pashinin A.E., Zorov I.N., Sinitsyn A.P., RF Patent No. 2468354, 2011).

The antibacterial properties of the claimed mixture and the products made from it are due to synergism (Bero R., Kasslio Zh.D., Geneole L. The problem of antibiotic resistance. "Veterinarian", No. 2. 2008. S. 28-34) the action of pine resin (0.1 ÷ 0.5)%

 (Akopyan VB, Bambura MV, Rukhman AA, Stupin A.Yu., Filatova VB Ultrasound in the formation of aqueous suspensions of refractory biologically active substances. Proceedings of the XXII session of the Russian Acoustic Society and the session of the scientific Acoustics Council of the Russian Academy of Sciences, Moscow, 2010) and, most likely, traces of tiuram used in the manufacture of car tires (0.1 to 0.75% by weight of rubber), as well as used in dry seed dressing preparations.

The antimicrobial activity of the samples of the claimed mixture with different pine resin contents was evaluated by the disk diffusion method (DDM) according to the size of the delay zones (Dmitrieva VS, Semenov SM, Microbiological control of the activity of antibiotic drugs. Practical guide. M: Medicine, 1965, 364 p.), In a dense nutrient agar medium using test microbes Candida albicans, Bacillus subtilis, Bacillus thuringiensis. The evaluation results are given in table. one.

Comparative fungicidal activity was evaluated by the degree of development of molds in accordance with GOST 9.049-91 (Table 2):

From the data presented in tables 1 and 2, it follows that the antimicrobial activity of mixtures containing pine resin is quite high, at least in relation to the studied strains.

It is obvious that rubber-polymer plates made of the proposed composition containing not more than 0.5% pine resin, in terms of physical and mechanical properties, are practically the same as the composition closest to the claimed invention used for the manufacture of pavement, playgrounds and sports grounds, but in contrast to this composition, they meet zoohygienic requirements and have bactericidal properties.

Thus, the set of distinctive features of the described composition ensures the achievement of this goal.

As a result of the analysis of the prior art, a source characterized by features identical to all the essential features of the claimed invention was not found, therefore, the claimed invention meets the condition of "novelty."

An additional search for known solutions showed that the claimed invention does not follow explicitly from the prior art for a specialist, since a composition is selected that provides microbiological protection of animal-friendly floors from rubber-polymer plates created from the claimed composition. Therefore, the claimed invention meets the condition of "inventive step".

For the claimed composition, in the form as described in the claims, there are no obstacles to its implementation in practice. Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (1)

Raw composition for the manufacture of floor rubber-polymer plates, containing, wt.%:
polyurethane binder 10-12,
a solution of pine resin in gum turpentine (in terms of resin) 0.1-0.5,
mechanically activated crushed rubber during grinding in a planetary
a mill with particle sizes (1 ÷ 3) mm - the rest.
.