SU883114A1 - Floor coating composition - Google Patents

Description

(54) COMPOSITION FOR FLOORING

I

The invention relates to polymeric compositions for coating industrial building floors.

A known flooring composition is based on a mixture of polychloroprene and polyisobutylene latexes 1 |.

However, the low water resistance of this flooring compound precludes its use for chemically resistant floors.

Closest to the proposed technical essence and the achieved result is a composition for flooring, including a water dispersion of synthetic rubber, epoxy oligomer and marshalite.

However, the known composition has an increased acid permeability, which leads to a significant increase in wear during operation of the floor under the action of aqueous solutions of acids and alkalis.

The aim of the invention is to increase the wear resistance of the coating under conditions of constant exposure to acids and alkalis.

The goal is achieved by the fact that a floor coating composition comprising an aqueous dispersion of synthetic rubber, an epoxy oligomer and a marshalite, contains as a water dispersion of synthetic rubber a 4556% epoxidized butadiene rubber latex with an epoxy content of 3.2-4.1%, as an epoxy oligomer, an epo-sidimethylhydantoic resin and additionally an aminophenol hardener in the following ratio of components, more than:

45-56% epoxidized butadiene rubber latex100

Epoxymethylhydantoin resin, 40-65

Aminophenol hardener ..19-28 Marshalite 70-90

The epoxydimethylhydantoin resin is completely dissolved in water and its mixtures with epoxybutadiene latex are stable when stored for at least 6 May.

The formulation is prepared in a mortar mixer, mixing time after the introduction of all components 10-12 minutes. Compositions for facial layers containing additional pigment, fray on krasoterke.

Due to its low viscosity, the composition was applied to the stand by a mechanized method using a pneumatic fan. Usually 3 layers are applied: 2 basic thick

Epoxybutadiene latex of mark ED-3 (content of epoxy groups 3.8%; conc. 50%; pH 9.5; Defrostnity 2500 g) 100: 100

Epoxybutadiene

latex (content

epoxy 4.1%;

cond, 56%; pH 9.0;

Defoe hardness

2900 g) - Epoxybutadiene. latex (content of epoxy groups 3.2%; conc. 45%; pH 9.0; Defo-hardness 2200 g) - Dimethylhydroanteic epoxy resin5247

Aminophenol UP-58328

Aminophenol AF-2-22

Aminophenol UP 606/2

Marshalit80 90

83-114. four

1.2-1.4 mm each and face layer 1.0-1.2 mm thick.

The content of the components in the proposed coating compositions are presented in Table. one .

The data of comparative tests of known and proposed compositions are given in table. 2

The proposed composition allows the field to be coated with high wear resistance under the conditions of constant acid and alkali exposure, high water resistance and good physical and mechanical properties, which increases their service life.

Table 1

100

100

65

40

24 75

19 70

Strength at stretching, MPa

Elongation at break,

Resistance coefficient after 90 days in environments:

Abrasion on the Schopper device

after 20 days

storage, micron

after 180 days stays: in water, micron

3% N25a, micron 5% NaOH, micron

10%

860 microns

Claims (1)

1. Kuznetsova L. G., Komissarova R. S. Latex seamless coatings, USSR Copyright Certificate. Sat Design experience, s 306237, cl. E 04 F, 1968 device and exploitation of floors - (prototype).