RU1835393C - Polymer solution - Google Patents

Abstract

Usage: in the building materials industry for the installation of an anti-corrosion protective coating for building structures. The inventive polymer solution to protect building structures from corrosion, including, wt%: epoxy Dianova resin 14-20, polyethylene-polyamine 1.4-2.0, nitrile butadiene rubber with a content of units of nitrile-acrylic acid 17-20 wt3%: 0.32-1.9, bromonaphthalene 0.14-2.0, filler - magnesium fluoride 74.1-86.64. Shear adhesion is up to 347 kg / cm2, shear adhesion after water saturation is up to 331 kg / cm2, impact resistance is up to 161 J / cm3. 2 tab.

Description

The invention relates to building polymer mastics, solutions based on epoxy resins used in the manufacture of anticorrosive coatings resistant to hydrofluoric acid.

Known polymer solution, including, in May.%: Epoxy Dianova resin, 8; polyethylene polyamine 5.9; Di-butyl phthalate 5.9; acetone 8.7; cement 20.5.

The closest to the claimed technical essence is a polymer solution, including, May.%: Epoxy Dian resin butadiene nitrile rubber with a content of nitrile acrylic acid units 17-20 wtD 1-12; hardener polyethylene polyamine 2-10; tetraethoxysilane 7-14; placeholder 40-70

The described polymer solution has significant drawbacks: low adhesion, low impact strength and low water resistance. The aim of the invention is to increase adhesion, impact strength and water resistance.

This is achieved by the fact that the polymer solution, including epoxy diane resin, polyethylene polyamine, nitrile butadiene rubber containing nitrile acrylic acid units on May 17-20. and the filler, additionally contains bromonaphthalene, and as a filler, magnesium fluoride in the following ratio of components, May D:

Epoxy Dianova

resin 14-20

Polyethylene polyamine 1.4-2.0,

oo s

SL

about

CA

Said rubber 0.32 - 1.9 Bromonaphthalene 0.1k - 2.0 Magnesium fluoride 7.1 - 86.6 The polymer solution is prepared as follows. With constant mixing into the epoxy resin, rubber SNK-18-1, bromonaphthalene, hardener and filler are introduced. The mixture is thoroughly mixed for 4-6 minutes, after which the prepared composition is placed in the prepared forms. The total mixing time is 6-8 minutes. Tests were carried out after 28 days of air hardening.

The following materials were used for testing:

a binder - epoxy Dianova resin ED-20 with a density of 1.25 g / cm3, according to GOST 10587-81,

hardener - polyethylene polyamine with a density of 1 g / smz tu 6.02059 -75,

s, bromonaphthalene of the chemical formula H, 0H, Br according to TU 6.09.186 75 with changes No. 1,2 and rubber SKN-18-1 — butadiene nitrile with a content of nitrile acrylic acid units of 17–20 wtD were used as additives;

Magnesium fluoride was added as a filler.

For testing, the formulations shown in Table 1 were prepared. 1.

The obtained samples were tested according to standard methods at the age of 28 days of air hardening. The test results are given in table. 2

10

fifteen

25

thirty

twenty

Claims (1)

The claims A polymer solution to protect building structures from corrosion, including epoxy diane resin, polyethylene polyamine, nitrile butadiene rubber. Containing nitriacrylic acid units md and j filler, characterized in that, in order to increase adhesion, impact strength and water resistance, it additionally contains bromonaphthalene, and as filler - magnesium fluoride in the following ratio of components, Epoxy Dianova resin Polyethylenepolyamine Butadiene-nitrile rubber with a content of nitrile acrylic acid units May 17 - 20,% Bromonaphthalene Filler - magnesium fluoride Table 1 Moso b eleven, 20 2.0 , 0.32-1.9 0.1 - 2.0 7.1 - 86, table 2 Famous (prototype) 7 255 240