SU939420A1 - Polymineral mix - Google Patents

Description

(54) POLYMERMINERAL MIXTURE

FIELD: builder. materials, namely, compositions of polymer-mineral mixtures intended for the installation of chemically resistant coatings of building structures.

The polymer mineral mixture I is known, including May. %:

Epoxy resin12-16

Polyethylaminopolyamine 2,88-3,64 Mineral filler80-85 Alkyl dimethylamine oxide 0.12-0.36

Closest to the proposed technical essence and the achieved result is a polymer-mineral mixture 2, including:

Epoxy resin plasticizer -100

The solution of rubber SKN-26-1. In the monomer FAM 3: 8. 10-60 Amine hardener 7.5-27 Quartz sand480-720

Mineral powder 200-370 Penazolin2-11

The disadvantages of these mixtures -. low mobility of mixtures and high

permeability of the obtained coatings in aggressive media.

The purpose of the invention is to increase the mobility of the mixture and reduce the permeability of the coating in acid solutions.

This goal is achieved by the fact that a polymer-mineral mixture, predominantly for the coating device, including epoxy resin, amine hardener, rubber-based plasticizer and mineral filler, contains 20-70% as a plasticizer as a plasticizer. a solution in an organic solvent and additionally a quaternary ammonium base of the general formula

R (CH) oNC H5CH5 Ce,

where R t is an aliphatic radical with a content of -C d in the following ratio of components, wt.h.: Epoxy resin100

Amine Hardener 9-20 Plasticizer8-30

Quaternary ammonium base 0,2,2 .1,5

The mineral filler 150-400 The by-product of the production of isoprene rubber has a molecular weight of 100,000-200,000 and is (good viscous mass readily soluble in organic solvents. The chemical composition of the by-product of the production of isoprene rubber is as follows: May.%: Stearic acid 0, 15-0.8 Antioxidants 0.0002 0.006 Iron 0.1 0.5 Ash Ash Isoprene rubber SKI-3 Else Quaternary ammonium base of the general formula R (CH3 / iiNC, H5CH, 2.df where R is the radical containing corresponds to TU-6 -01-816-75. Polymer Technology A further eralnoy mixture. Dissolve byproduct isoprene rubber production op ganic solvent, e.g., acetone., rubber waste solution and the four-particle ammonium base sovmeschaKomponenty

ED-20 epoxy resin

Polyethylenepolyamine Amine Hardener

Plasticizer

Quaternary ammonium base

Sand molding

Note e. As a plasticizer, 20% for example 1, 50% for example i, and 70% by-product solution of isoprene rubber for example 3 are used.

Indicator

Mobility of polymer-mineral mixture (ultimate shear stress) after 15 min, ka

The composition according to the examples, may.

100

100

20 30

12 15

0.2. 0.81.5

150350400

Table 2

The composition of the mixture

4.7

2.2

2.5 are sprinkled with epoxy resin. An amine hardener, for example polyethylene polyamine, and then a mineral filler (quartz sand, marshalite, etc.) are gradually introduced into the mixture with stirring. Specific compositions of the mineral mixture are presented in table 1. The properties of the mixtures and coatings according to the examples and the prototype are given in table 2. As follows from the test results, the proposed polymer-mineral mixture is characterized by greater mobility than is known. Coating strengths are about the same. The coefficient of diffusion permeability in solutions of acid coatings based on the proposed mixture is lower than that of the prototype. The economic effect of using the proposed polymer-mineral mixture is achieved by increasing the durability of the resulting coatings and reducing the energy consumption for compaction of the mixture. Table Compressive strength, MPa Specific impact viscosity, kJ / m Diffusion permeability coefficients, cMVc, in media: 2.1-, 10 10% HCI 1.9-10 10%

Claims (2)

1. USSR author's certificate №535244, cl. From 04 To 25/02, 1975. 2. Authors certificate of the USSR 697449, cl. C 04 B 25/02, 1977. 1.9-10 2.2-10 2.9-10 2, 5-108 1.7.10® 1.8-10.