SU1222659A1 - Compound for producing facing slabs - Google Patents

Description

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The invention relates to building materials, namely, liquid glass based compositions used for the manufacture of cladding plates.

The purpose of the invention is to increase the resistance and heat resistance, as well as decrease the bulk density.

The compositions of the proposed composition are given in table. 1.

As ground tuff, stone processing waste with a specific surface of 1500-2500 is used.

As liquid glass using sodium liquid glass with cream neemistmm module 2.8, density 1.4 g / cm

Oligomeric zinc carboxylate was prepared as follows.

12.4 g (0.2 mol) of ethylene glycol and 39.2 g (0.4 mol) of maleic anhydride are loaded into the reactor and the temperature of the reaction medium is brought to 75-85 ° C with stirring, the reaction is carried out within 1-1.5 h. Then, 27.2 g (0.2 mol) of ZrCl is gradually added and, without stopping stirring, the temperature is raised to 95-98 ° C. During the reaction, HC1 is gradually released. The termination of the reaction is judged by cessation of the release of HC1. The synthesis time of the oligomeric zinc carboxylate is 3 hours. After completion of the reaction, the product is repeatedly washed with chloroform, dried at 75-80 ° C for 6-8 hours until constant weight.

Found,%: C 41.95; H 3, l; Zr

11,3.Л

Calculated,%: C 42,10; H 2.98; Zr 11.4.

Mol. Mass 1100 (calculated 1140).

-

222659

The structural formula of the resulting product.

1 OSSN CH - - OSSN

QC

OO

II Oh

CH - C - O - zn - O - s; - CH - II (I

oo

CH - with - CH. - CH - about - sen k1. ,,

oo

sns he

The technology for obtaining the proposed raw material mixture and the manufacture of facing slabs based on it are as follows,

The dry compounded components were mixed in a forced-action mixer for 3–5 minutes, liquid glass was sprayed in, previously dissolved in it. Zinc oligomeric carboxylate, then mixing was continued until the pulp was homogeneous in moisture content. The lumps formed in the mixture are triturated in order to evenly distribute the liquid glass in the mass. The resulting mass is subjected to crushing under a specific pressure of 40120 kgf / cm and heat treated at 140-200 h:

Comparative indices of prvs prepared from known and proposed compositions are given in table 3.

Ground tuff

Liquid glass (in terms of dry substance)

Calcium Stearate

Oligomeric zinc carboxylate based on diethylene glycol maleate

Sodium fluoride

86.0 91.0 87.6 89.0 92.0 85.0

9.0 O,

0.2 4.7

5.0 8.0 0.4 0.2

1.6 1.2 2.0 3.0

6.3 4.0

0.3 0.5

0.7 2.0

3.7 1.5

10.0

0.05

0.1

4.85

Note. Compositions 5 and 6 are given to substantiate this.

in the formula for the ratio of components

Content

components

wt.% 64.62-63.43 3.86-5.55 0-0.79

Content

components

wt.% 0,78-1,27

Table 1

6.3 4.0

10.0

0.3 0.5

0.05

0.7 2.0

0.1

3.7 1.5

4.85

T and b l and II, and 2

1.15-1.89 3.11-3.56

16.93-17.50 6.62-8.04 Else

Famous 2100-2300 500-700

15.0-18.0 25-35

Table 3

10-15

2-4

8-10

Claims (1)

COMPOSITION FOR MANUFACTURE OF FACING PLATES, including water glass, calcium stearate and mineral filler, characterized in that, in order to increase frost resistance, heat resistance, and also reduce bulk density, it contains tuff with a specific surface area of 15002500 cm ¹ / g as a mineral filler and additionally, zinc oligomeric carboxylate based on diethyl glycol maleate with a molar mass of 1100 and sodium silicofluoride in the following ratio of components, May.%: Liquid glass (dry society) 5-9 Calcium stearate nation 0.1-0.4 Tuff with specific surface 1500-2500 cm ² / g 86-91 Oligomeric carboxylate zinc based ve diethylene glycolmale- nata with mol.masg- soi 1100 0.2-1.6 Kremneft porous nat ri 2.0-4.7 The structural formula of the resulting product.