RU2291776C2 - Hardenable kluchnikovs' plasticine - Google Patents

Abstract

FIELD: domestic rubber goods.

SUBSTANCE: invention relates to plastic material such as hardenable plasticine suitable for modeling, molding, and manufacturing of decorative and applied or artistic articles, which plasticine is capable of acquiring elastic and deformation properties and heat resistance after heating or microwave irradiation. Material comprises 5-80% unsaturated rubber or mixture of unsaturated rubbers; 0.1-10.0% curing agent, namely spatially hindered phenol-quinonedioxyme condensation product of general formula:

, wherein R₁ and R₂ represent hydrogen atom or R₁ is methyl, R₂ isopropyl, and R₃ t-butyl or methoxy; 3-15% plasticizer; 0-5% dye; and filler - the balance.

EFFECT: enabled modeling and molding of flat and three-dimensional articles.

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Description

The invention relates to the development of a plastic material that can be used as plasticine or molding composition in the field of arts and crafts for sculptural and artwork, sculpting, modeling.

Known plastic materials and molding compositions for creating decorative products, sculptural works and moldings based on a binder - flour, starch, plasticizer - emulsion of polyvinyl acetate and fillers - paper, sawdust (A.S. RU No. 2206461, IPC ⁷ V 44 C 3/04 , dated 01.02.2001), as well as plastic material for sculptural work consisting of a plasticizer - petrolatum and petroleum paraffin, as well as filler - sculpted clay (ed. certificate No. SU 1707095, MKI ⁵ V 44 S 3/04), the disadvantages of which there is a limitation in such decorative and consumer products their properties after molding, such as lack of elasticity, uprugodeformatsionnyh properties. This drawback does not allow the product to restore its original shape after mechanical action from the outside, for example, when any or part of it is deformed.

Other plastic materials are known, for example plasticine, consisting of target additives bearing the functions of a binder, plasticizer, dye and filler.

As analogues of the claimed invention, we considered A. with. USSR No. 594146 of 1976, No. 773055 of 1979, No. 148205 of 1961, No. 1006457 of 1981, No. 1333678 of 1984, all cl. C 08 L 91/06.

A.S. SU No. 1416497, MKI ⁴ C 08 L 91/06 from 08/07/86, selected as a prototype, has a composition, wt.%: Petrolatum 34.0-40.0; ceresin 0.5-3.4, paraffin - 2-14.2, lanolin - 0.5-2.5, dibutyl phthalate or dioctyl phthalate 2.0-5.0; rosin glycerol ether 0.3-0.6; ricinoleic acid 0.5-5.3; sodium salt of propane chlorohydrinsulfonic acid 0.5-7.0; pigment and / or dye 0.1-8.0; filler - the rest.

Common disadvantages of existing grades of plasticine in the inventions analogs and in the prototype is their lack of thermal stability and elasticity, which leads to irreversible deformation and destruction of products due to melting and spreading with slight heating to + 35 + 40 ° C. A significant drawback is the lack of elastic-deformation properties of plasticine products, for example, tensile strength, which does not allow the molded product to maintain its original shape even after a slight mechanical impact from the outside, the finished product is easily scratched, wrinkled, deformed.

The purpose of the invention is the development of a new type of plastic material with the properties of plasticine for molding and modeling, capable of curing after molding a flat or bulk product, while acquiring elasticity, elastic deformation properties and thermal stability.

This goal is achieved in that the new plastic material - curable plasticine contains one or more unsaturated rubbers (from 5 to 80 parts by weight) and the condensation product of spatially hindered phenol and a quinondioxime derivative, referred to in the scientific literature as quinol ether (from 0, 1 to 10 parts by weight) synthesized according to one of the methods (Dobronravova Z.A. et al., Journal of Organic Chemistry. 1980. V.16. No. 5. P.1034-1039; Dobronravova Z.A., Ardatova L. .G., Rudnev E.V., author of certificate of the USSR No. 558907, method for producing O, O'-bis- (1,3,5-three-tert-buty lcyclohexadiene-2,5-one-4-yl) -n-benzoquinondioxime, BI 1977, No. 19), with the general formula:

where the quinoid fragment with R ₁ , R ₂ may be a combination of substituents from among: H; methyl, isopropyl; cyclohexadienone ring substituents may be R ₃ = tert-butyl, alkoxy.

So, according to the general formula, the following conventional names are used in the technical literature: quinol ether EX-1 contains R ₁ , R ₂ = H, R ₃ = tert-butyl; EC-2 quinol ether contains R ₁ , R ₂ = H, R ₃ = methoxy; EC-10 quinol ether contains R ₁ = methyl, R ₂ = isopropyl, R ₃ = tert-butyl.

Plastic material - curable plasticine - additionally contains:

a) plasticizers - liquid and solid hydrocarbons or products of their processing, such as mineral, synthetic, semi-synthetic, vegetable oils, liquid rubbers, etc .;

b) fillers - inorganic natural or synthetic compounds, for example: kaolin, chalk, talc, silica, cement, gypsum, asbestos, etc., organic natural fibrous materials, for example cellulose-containing products, such as paper, sawdust, plant fibers, etc .;

c) if necessary, dyes or pigments, natural or synthetic, inorganic or organic, for example titanium dioxide, zinc white, carbon black or carbon black, iron oxide or phthalocyanine pigments, etc.

According to the proposed invention, curable plasticine is prepared by mixing the components of unsaturated rubber, quinol ether, plasticizer, filler and dye.

For the manufacture of a number of compositions not intended for decorative, artistic and stucco work, there is no need to use additives - dyes or pigments.

The invention is illustrated by the following examples:

Example 1. Plastic gray material, wt.%:

Synthetic isoprene rubber SKI-3 25.0 Vaseline oil 3.0 Condensation product of 2,4,6-tri-tert.-butylphenol with n-benzoquinondioxyme (quinol ether EX-1) 0.5 Kaolin Rest

Example 2. Plastic yellow material, wt.%:

Synthetic divinyl rubber, SKD 30,0 Petrolatum 10.0 Industrial oil 5,0 Condensate of 2,4,6-tri-tert-butylphenol with 2-methyl-5-isopropyl-n-benzoquinone dioxime (quinol ether EH-10) 0.5 Ocher 0.2 a piece of chalk Rest

Example 3. Plastic material of red color, wt.%:

Triple ethylene propylene rubber (SKEPT) twenty Industrial oil 5,0 Condensation product of 2,6-di-tert.-butyl-4-methoxyphenol with n-benzoquinondioxyme (quinol ether EX-2) 0.5 Pigment red iron oxide 1,0 Talc Rest

Example 4. Plastic material in black, wt.%:

Synthetic sodium butadiene rubber, SKB 50,0 Transformer oil 10.0 Quinol ether EC-1 1,0 Carbon black 5,0 a piece of chalk Rest

The obtained plastic materials in examples 1 ÷ 4 have the property of plasticine, are suitable for molding, molding, modeling, molded products and shapes from them are able to acquire highly elastic, elastic deformation properties after heating or exposure to microwave radiation.

Physico-mechanical characteristics of the compositions according to examples 1 ÷ 4 after they were cured in a household microwave oven with a power of 500 W for 15 ÷ 20 minutes or when heated in an air thermostat at 90 ÷ 110 ° C for 20 ÷ 60 minutes amounted to: cohesive strength σ = 6 ÷ 10 MPa, elongation ε = 300 ÷ 700%.

Cured products have high thermal stability, do not deform and do not collapse when heated to 170 ° C for 12 hours.

Claims (1)

A plastic material, such as an approved plasticine for molding, molding and manufacturing of decorative-applied or artistic products, capable of acquiring elastic, elastic deformation properties and thermal stability after heating or exposure to microwave radiation, including unsaturated rubber or a mixture of unsaturated rubbers, the curing agent is a spatial condensation product hindered phenol and quinondioxime derivative with the general formula

where the substituents R ₁ , R ₂ - H or R ₁ - methyl, R ₂ - isopropyl, R ₃ - tert-butyl, methoxy, plasticizer, filler and, if necessary, a dye in the following ratio of components, wt.%: Unsaturated rubber or a mixture of unsaturated rubbers 5-80 Specified curing agent 0.1-10.0 Plasticizer 3-15 Dye 0-5 Filler Rest