Hydrophilic plasticine

FIELD: chemistry.

SUBSTANCE: hydrophilic plasticine is a product of comprehensive recycling of concentrated steep water from starch production, having sufficient plastic properties. The hydrophilic plasticine is obtained by heat treatment at 90C, while simultaneously mixing the mixture of dry sieved moss peat with moisture content of not more than 20% and a thickened corn-steep extract, formed during starch production when corn is soaked in warm water at 45-52C, which contains up to 0.35% sulphuric acid with respect to SO2 and less than 2% fatty acids and dry substances boiled down to concentration of not less than 48%. Components of the mixture are taken in ratio of 1:(4-6), respectively. If content of fatty acids in the thickened corn-steep extract is higher than 2%, the components are first heated to different temperatures before mixing.

EFFECT: plasticine is plastic and dissolves in water.

2 tbl

 

The invention relates to the field of deep disposal of waste, to obtain a new, previously unknown polymeric material.

The technical problem is solved by mixing and subsequent heat treatment at 90C, while stirring, a mixture consisting of two components: peat, dried to a moisture content of not more than 20% and sifted through a sieve with a pore diameter of 1 mm and condensed corn extract, formed on starch and syrup production for soaking corn grain in warm, with temperatures 45-52C water containing up to 0,35% sulfurous acid (in terms of SO2), and then boiled under vacuum to a dry substance concentration not lower than 48%. In appearance it is a thick liquid, opaque, or nearly smooth paste with a flocculent suspension, able to settle. During storage it may be split into two heterogeneous layers: the top is dark and the bottom light. Approximate physico-chemical composition of condensed corn extract and its layers, in %, are shown in table (data from the book of Professor N.N. Tregubova "Technology of starch and starch products", M, 1970, str).

Table 1
IndicatorsOriginal ek is a path The top layerThe bottom layer
The concentration of dry substances (SV)52,3351,8054,29
The acidity in terms HCl11,64of $ 11.97to 11.56
Sulphurous acid (H2SO30,2000,1970,209
Fat1,1631,2451,093
Protein by Kjeldahl method40,3641,8534,96
Ash21,7421,9321,07
Total soluble sugaris 3.083,182,84
Lactic acid bulk8,719,705,96
Lactic acid in terms of SV 15,0617,8611,50

The resulting preparation, dosing and mixing a mixture of peat and condensed corn extract in a weight ratio of 1:(4-6) is subjected to heat treatment at a temperature of 90C, exercising, at the same time, continuous stirring to obtain a viscous thick mass of black color, which upon cooling solidifies and becomes plastic properties.

Thus, it turns out the clay, which feature is its solubility in water.

At the same time, it should be noted that the product and form of the resulting clay, after the removal of moisture, get a certain heat resistance and can withstand temperatures when heated in the oven up to 300C without deformation changes.

Example.

Dried to a moisture content of not more than 20%, peat sieved through a sieve with a pore diameter of up to 1 mm Sieved sample of 20 grams is mixed with 100 grams of condensed corn extract, containing not less than 48% of dry substances and to 0.35% sulfur dioxide (SO2). The resulting mixture was subjected to heat treatment at a temperature of 90C. while stirring to obtain a viscous thick mass of black color, which upon cooling solidifies and becomes plastic SV is Ista.

The above method of obtaining a hydrophilic clay can be successfully applied when the content of fatty acids in the condensed corn extract is less than or equal to 2%.

With the increased content of fatty acids, more than 2%, effective method thereof, with separate preliminary heat treatment of components; sifted peat pre-heated to a temperature of 160-250C in a special device, which design, to preclude the ignition, and then it is mixed with condensed corn extract, heated to 95-100C. When this occurs an instantaneous exothermic reaction accompanied by considerable heat and, simultaneously, the formation of a homogeneous viscous plastic mass of black. The resulting clay has a shiny glossy surface and has a higher elastic properties.

Compare the obtained clay with existing analogues.

Known clay-based petroleum butter, a mixture of paraffin and ceresin, rosin, zinc white, as well as pigments and/or dyes - SU authorship 1333678, CL C08L 91/06.

There is a clay containing protective wax, paraffin oil, liquid paraffin, pigments and/or dyes and fillers as talc and chalk - SU authorship 773055, CL C08L 91/06.

Many the m mark clay-based petroleum butter, paraffin, kaolin, industrial oil, rosin, and pigments and/or dyes - SU authorship 594146, CL C08L 91/06.

All of these types of clay, consisting primarily of refined petroleum products - non-renewable raw material source, are complex multicomponent derivatives are expensive at cost, practically does not dissolve in water and are intended solely for modeling and simulation, as proposed, as applications for the invention, the hydrophilic clay will find use not only as a material for modeling in tuning Atelier, in particular, but also, as a filler in the production of hydrophilic rubber, rubber compounds and biodegradable plastics.

Disclosure of the invention.

Below the table the actual signs characterizing the resulting substance.

Table 2
Name of indicatorThe actual signs
1. AppearancePlastic-viscous mass, which can take any form.
2. ColorBlack.
3. Smell Characteristic odor.
4. ConsistencyHomogeneous plastic-viscous mixture.
5. Plastic propertiesDoes not dry out, connects easily, well softened.
6. The content of water-soluble dyesContains water-soluble natural dyes.
7. Solubility in waterA cube of clay from the sides of the faces 1X1X1 cm dissolved in hot water for half an hour
8. Shelf lifeIn a sealed package more than 1 year saves plastic properties.
9. TransportationCan be transported when Packed in airtight containers, weighing 10, 25 and 50 kg

Hydrophilic clay as a product of deep disposal of concentrated steeping water starch production, obtained by the method of heat treatment at 90C. with simultaneous stirring of a mixture of renewable sources of raw materials: dry sifted peat moisture content above 20% and condensed corn was EXT the act, formed on starch production for soaking corn grain in warm, with temperatures 45-52C water containing up to 0,35% sulfurous acid (in terms of SO2), and contains less than 2% fatty acid, and then boiled under vacuum to a dry substance concentration not lower than 48%, taken in a weight ratio of 1:(4-6), or when the content in condensed corn extract fatty acids more than 2% of the mixture of preheated above components: peat - up temperature 160-250C and condensed corn extract to a temperature of 95-100C, taken in a weight ratio of 1:(4-6).



 

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