RU2491244C1 - Filling compound - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to construction materials - filling compounds, used in decoration and facing. The filling compound contains the following, wt %: piperylene-styrene latex 5-15, bischofite 50-70, carboxymethyl cellulose 1-3, disinfectant - a mixture of alkyltrimethylammonium chloride with polyhexamethylene-guanidine chloride in ratio of 1:10-15 1-5 and water - the balance.

EFFECT: high durability, fungicidal and bactericidal activity.

1 ex, 3 tbl

Description

The invention relates to building materials, namely to putties - pasty-like finishing materials used in finishing and facing work to level concrete, brick, plaster, wood and other surfaces before painting, to seal joints of surfaces and to protect wooden, stone, concrete, brick surfaces from biodegradation by their fungus.

Known putty, including polyacrylamide, chalk, plasticizer ShchSPK and water (Pat. RF 2132858, CL C09D 5/34, 1999). However, this putty does not have sufficient adhesion to hot surfaces and weather resistance.

Closest to the proposed invention by technical essence is a putty mass, including piperylene-styrene latex (PSL) as a film-forming substance, chalk or marshalite as a filler, carpentry glue or carboxymethyl cellulose as a thickener. as well as a surface-active substance (surfactant) to facilitate the mixing of components and, in addition, polyethyleneimine as a disinfectant and adhesion promoter (USSR AS No. 626074, class 0404 26/04).

This putty has high water resistance, weather resistance, vitality, adhesion to hot surfaces.

The disadvantage of this mixture is its low biostability and the absence of pronounced fungicidal and antiseptic properties.

The technical problem solved by this invention is to obtain a putty mass with an antiseptic effect, which, along with high vitality, has significant fungicidal and bactericidal properties, providing prolonged antiseptic treatment of treated surfaces, their protection against biodeterioration by fungus and decay.

To solve the technical problem in a putty mass, including a film-forming polymer component — latex piperylene — styrene, filler, thickener — carboxymethyl cellulose, a disinfectant and water, bischofite is used as a filler, and a synergistic mixture of alkyltrimethylammonium chloride with chloride 1 is used as a disinfectant. : (10-15) in the following ratio of components in wt.%:

- latex piperylene - styrene 5-15 - bischofite 50-70 - carboxymethyl cellulose 1-3 - disinfectant (synergistic mixture of alkyltrimethylammonium chloride with polyhexamethylene guanidine chloride) 1-5 water rest.

The alkyl trimethylammonium chloride used in the putty is a quaternary ammonium compound (HOUR) and is used as a fungicidal agent in household chemicals. It is a colorless or light yellow transparent liquid, readily soluble in water.

Use ALKAPAV 1214-35 manufactured by NPP NIIPAV

Volgodonsk city.

Polyhexamethylene guanidine chloride (PHMG) refers to antiseptic thermostable polymer compounds with high prolonged activity. It is a colorless powder, highly soluble in water. Use PGMG chloride according to TU 9392-020-41547288-02.

The presence in the putty mass of a synergistic mixture of polyhexamethylene guanidine chloride (PHMG) in combination with QAS gives it high fungicide and antimicrobial properties, providing not only protection of the processed materials from biodeterioration, but also prolonged antiseptic properties of the treated surfaces, as well as high adhesion to the treated surfaces and on these surfaces with colorful coatings. Moreover, in the synergistic mixture of PGMG-HOUR chloride, a known synergy is observed: an increase in both the antimicrobial ability of the composition inherent in PHMG chloride and the opacity of the adhesive properties provided by HOUR.

A film-forming polymer component, styrene piperylene latex, is introduced to create a durable coating film that provides a bond between the surface to be treated and subsequent painting or other finishing (varnish, wallpaper, etc.).

Piperylene-styrene latex is a water-rubber suspension, which ensures uniform distribution of the film-forming polymer between other components of the composition. Having fulfilled its role as a diluent, water evaporates during the drying process of the composition (PS-70M TU 38-031016-90).

The thickener is a binder component and is introduced to create a working consistency. In this case, carboxymethyl cellulose is used.

Carboxymethyl cellulose is an ether of cellulose and glycolic acid. It is an amorphous colorless substance, readily soluble in water, biologically inactive, and resistant to biodegradation. Used as a thickening agent. Carboxymethyl cellulose from Shin Etsu, KG is used.

The filler is introduced for the density of the composition. Bischofite is used as a filler.

Bischofite is a mineral of the halogenization class, MgCl ₂ : 6HO ₂ . Br impurity (up to 1%). White granular or fibrous aggregates. Hygroscopic. Characterizing a burning-bitter taste, density 1.6 g / cm ³ (GOST 7759-73).

Putty mass is prepared as follows. A film-forming component in the form of an aqueous solution or emulsion is loaded into a mixer with a paddle mixer, a pre-prepared synergistic mixture of HOUR with PHMG chloride and a thickener (carboxymethyl cellulose) pre-soaked in water are added. The resulting mixture was stirred and finely ground filler and the missing amount of water were added in the mixing process in accordance with the recipe. The resulting mass is finally mixed for 15-20 minutes to obtain a film-like product. To improve the hiding power, it is rubbed for 5-10 minutes in a sinew roller paint grater.

Example 1

5% by weight of piperylene-styrene latex in the form of an aqueous solution are loaded into the mixer, a pre-mixed synergistic mixture of HOUR and PHMG chloride is added at a ratio of 1:15 in an amount of 1.5 wt.%, After which carboxymethyl cellulose is added in an amount of 2 wt.%, previously soaked in 5 wt.% water. Bischofite in the amount of 50 wt.% And 36.5 wt.% Water is added to the resulting mixture during stirring in accordance with the recipe. The resulting mass is stirred for 20 minutes to obtain a film-like product. To improve the hiding power, the resulting product is ground for 10 minutes in a three-roll paint sprayer.

Table 1 shows specific examples of the compositions of the antiseptic putty obtained by the described method, table 2 shows their properties, and table 3 shows evidence of the optimality of the ratio of the synergistic mixture HOUR: PHMG chloride.

The number of ingredients selected on the basis of numerous experiments and is the optimal value.

The proposed antiseptic putty in combination with biocidal paints can be used for decorating medical institutions, catering establishments, and children's institutions where long-term antisepticity of surfaces is required in order to reduce bacterial contamination of rooms.

Claims (1)

The filler mass, including the film-forming polymer component — piperylene-styrene latex, filler, thickener — carboxymethyl cellulose, a disinfectant and water, characterized in that bischofite is used as a filler, and a synergistic mixture of alkyltrimethylammonium chloride with chloride chloride 1 is used as a disinfectant: (10-15) in the following ratio of components, wt.%:
styrene-piperylene latex 5-15 bischofite 50-70 carboxymethyl cellulose 1-3 disinfectant (synergistic mixture of alkyltrimethylammonium chloride with polyhexamethylene guanidine chloride) 1-5 water rest