SU621714A1 - Sealing wax - Google Patents

Description

(54) FURNISHING MASTEMS

The invention relates to hermetic compositions based on unvulcanized synthetic rubber and can be used for the sealing, joints and joints of building constructions made of glass, concrete, metal.

Sealing paste mastic, carbonate, wt.% 1O, O-17, O ethylene-propane rubber is known; 1.9-5.0 buti to chuka I0.0-25.0j mineral oil and 56.07 5.0 filler flj ,.

Due to its low adhesive properties, this mastic is not suitable for high-quality sealing.

According to the technical essence and the obtained effect of the invention, the most basic is the mastic, comprising, in wt%: 5.0-4 O, O synthetic rubber; 10, O25, 0 mineral oil; 0.5-5.0 modifier (epoxy resin and water glass); filler - the rest 2.

During sealing, the gap of the tested compounds always occurs according to the heat of the mastic; however, the mastic has a water absorption up to O, 25 wt.% After 24 hours.

(GOST 14791-69), which adversely affects the adhesive properties with respect to materials of construction.

The purpose of the invention is to reduce water absorption.

The chain is achieved by the fact that the sealing mastic containing synthetic rubber, plasticizer, modifier and filler contains as a modifier 45-55% chloroparaffin dispersion in synthetic fatty acids or tappovoy oil in the following ratio of components wt.% Synthetic rubber 5, O- 4O, O

Plasticizer (mineral oil) 1O, O-25.0 45-55% dispersed chloroparaffin in synthetic fatty cispyuts — or tapal oil; 0.1-15.0 Nalopenephilus (chalk, ac, beats, oxides of heavy metals, etc. A) the rest

Mastic is prepared as follows; first, a 45-55% dispersion of chloroparaffin is obtained in synthetic fatty acids or taile oil under normal conditions in any mixer,

. The resulting dispersion is introduced into the rubber on a roller or re-inosmitepe, then the remaining components are introduced.

The compositions of the proposed mastic are given in table. 1, and physicomechanical characteristics in tebl, 2,

Thus, the introduction of the 45-55 dispersion of chloroparaffin in synthetic fatty acids or in tall oil into the composition of the sealing mastic leads to a decrease in the first viscosity (an increase in the consistency index by a factor of 2-3, while maintaining the tensile strength indicator at break O, 3 kgf / cm according to TU 21-29 -44-7b) and improvement of workability. Ethylene propylene rubber Popyisobutylene Divinipst “Roller rubber” Plasticizer industrial 20, 0 45% oil of chloroparaffin dispersion in synthetic fatty acids 55% of chloroform- dispersion. paraffin in tall oil 0.1 Filler (chalk) 74.9

The proposed non-hardening mastic based on synthetic rubbers is designed to seal the joints of various structures made of metal, concrete glass and for a long service life, retains the stability of properties, has a low water absorption, which allows it to be used in conditions of high humidity. Mastic is technological in production: its izgo-1X) is applied on rollers or

for 15-30 min with a minimum labor cost, the blender is easily packaged in a plastic film in the form of briquettes, which ensures a high culture of its production and use.

Applying mastic to the seams is carried out in a mechanized manner using electro- or pneumo-hermetic; which allow for high quality sealing of the abutting elements.

T a b l and c a 1 2O, 0 10.0 6.0

Water preparation,% in 24 hours (GOST 14791-69)

Relative extension, %

Heat resistance

Claims (1)

Invention Formula Sealing mastic for joints of building structures containing synthetic rubber, a modifier, a plasticizer and a filler material, which, in order to reduce water absorption, it contains as a modifier 45-55% dispersion of chloroparaffin in synthetic fatty acids or tallow oil in the following ratio of components, weight. %: Tabpitsa2 0.003 0, OOZ 0.002 0, O02 0.002 0, OO1 28 30 30 30 25 thirty Synthetic rubber 5, O-Yu, O Plasticizer10,0-25,0 45-55% dispersion: chloroparaffin in synthetic fatty acids or tall oil0,1-15,0 FillingEverything Sources I1v}) of the formation, taken into account during the examination: 1, USSR Author's Certificate 324259, cl. From 09 to 3/10, 1970. 2, Copyright Certificate CCCf 482487, cl. From 09 to 3/10, 1974.