SU958455A1 - Coating composition - Google Patents

Description

The invention relates to coatings for automobiles and airfields, in particular, to mastics for filling the seams of concrete surfaces. .

Known mastic including bitumen, rubber crumb, organic solvent and mineral fillers 11.

However, coatings based on a known composition are not characterized by a high level of physical and mechanical properties.

The closest in technical essence and the achieved result to the proposed is a composition for coatings, including bitumen, a modifier — coal oil, rubber crumb, and mineral fillers — asbestos crumb and limestone to 23. The disadvantage of this mastic is that it has a relatively small adhesion, and coal oil, which is carcinogenic, is used as an organic solvent modifier.

The aim of the invention is to increase the coating of concrete coatings.

This goal is achieved by the fact that a composition for coatings, including bitumen, a modifier, rubber crumb, asbestos and lime powder, contains as a modifier waste of drying oil Oksol, including, wt.%; fats 70-80, phosphatides 5-7, proteins 7-11, water the rest, with the following ratio of components, wt.%:

Bitumen .58-60 Modifier 7 -9 Rubber crumb12-14

15 Asbestos 8-10 Lime Powder 10-12

20 The composition is prepared using crumb rubber (grinding fraction 1.25 mm) of the product of crushing waste from the rubber goods plant from molded rubber goods

25 synthetic nitrile rubbers iCKH-40M IKN-40MS.

For the pre-swelling of the rubber crumb, a fuse was used for the production of drying oil Oksol,

thirty

inclusive, wt.%: fats 70-8P, pho-fatides 5-7, proteins 7-11 n water the rest with a flash point of 107-113С. The fats that make up the fuzz include 5.7-12% by weight of unsaturated fatty acids (linoleic, linolenic | oleic, palmitic-oleic) and 6.7-11.4% by weight of unsaturated fatty 5 acids (arachine, behenic , lignocerol, palmitic, stearic terebinova). In tab. 1 per ft; examples of a specific embodiment of the composition according to the invention are traced. Table 1

Bitumen VIEW 60/90

Fuea - waste of production of drying oil Oksol

Crumb rubber waste rubber based on nitrile rubbers

Asbestos

Lime powder

In tab. Table 2 presents the data on the properties of coatings based on crissa

The composition of the invention according to

Indicators

riizi

The softening temperature in Kish, ° С, not lower

freshly prepared sample

after 30 h of warming up at 100 ° С

after two days of heating at 160 ° C

Number of spreadability, not more

The temperature of fragility, ®C not higher:

freshly prepared sample-43

58

60

60

59

12 10 10

14 8

12

9

12

eleven

according to the invention and limeTable 2

Known to Comparative Zits

70

60

66

68 to 65 to 75

69 to 65 to 75

3.0

3.0 3.5

-45

-40

-thirty

-47

after 30 hours, preheat-37 -41 roar at 90 ° С

after 2 days of heating at

Adhesion strength, mastic to concrete, kgf / cm

freshly prepared sample at

water samples for a month

Continued table. 2

-38

-35

-39

-25

-36 -35

-25

-38

6.0

11.6 12.6, 4.0

Claims (1)

Claim Composition for coatings, including bitumen, modifier, rubber crumb, asbestos and limestone powder, characterized in that, in order to increase the adhesion of coatings to concrete, it contains, as a modifier, production waste of Oksol drying oil, including May.%: Fats 70-80 Phosphatides 5-7 Squirrels 7-11 Rest Water in the following ratio, May.%: VNIIIPI Order 6976/34 --------— N -—---.——— 40 Bitumen 58-60 Waste arbitrariness. ARISING varnish Oksol7 -9 ⁴⁵ Rubber crumb 12-14 Asbestos8-10 Limestone 50 powder 10-12