SU975762A1 - Mastic for non-reel roofing - Google Patents

Description

54) MASTICS FOR HAMELESS ROOFING,

The invention is inclined to mastic compositions used for the installation of wallless roofs.

The famous polymer-polymer mastic for the device of non-roll roofing is Elastim mastic 1.

This mastic is used in construction, but has low frost resistance and low weather resistance.

Known mastic, including, in May.%: Butyl rubber 6-9 Bitumen 0.5-3 Cement2-3 Asbestos2-3 b-hinondioxime 0.2-0.5 Manganese oxide 0.2-0.5 Organic solventElastic Mastic has quite good physical and mechanical properties t2. The disadvantage is low adhesion. The closest in tekhy essence and the resulting eff. That invention is mastic of the following composition, wt%:

16.9-29.0

Butyl rubber 0,6-1,4 N-hinondioxime Margan dioxide 2, 6-1,4 t 2,8-9,8

Filler 2,9-15,2 Bitumen

Carboxyl-containing butylka0, 3-1,0

10 uchuk 0.3-0.4

Antiseptic Remaining Solvent This B4 resin is used for the installation and repair of non-roll roofing 3. The disadvantage of the known mastic is the low vulcanization rate, which increases the formation time of the structure and, accordingly, the maximum set of performance properties. This in turn increases the roofing time and puts them in dependence on the weather conditions. The purpose of the invention is to increase the speed of curing mastic and improve its performance properties. The goal is achieved by the fact that the mastic for a non-roll roofing, including butyl rubber, n-quonindiok. sim, manganese dioxide, filler.

Bitumen, carboxyl-containing butyl rubber, antiseptic and solvent, additionally contains polyacetalurethane oligomer in the following ratio, wt.%:

Butyl rubber 16.9-29 / 0 p-hinondioxime 0.6-1.4 Manganese dioxide 0.6-1.4 Filling agent. 2.8-9.8 Bitumen2.9-15.2

Carboxyl-containing butyl rubber 0.3-1.0 Antiseptic 0.3-0.4 Polyacetal-urethane oligomer 1.2-2.0 Solvent Remains The polyacetalurethane oligomer is obtained by reacting at 80 ° C in the presence of an acidic catalyst of urethane-containing glycol, polyether - polyethylene adipate P- 6 and dvinilovogo ether diethylene glycol.

The technology for producing the proposed mastic is as follows.

Mastic is made in a rubber mixer in the form of two compositions at 60-80 ° C and a pressure of 6 MPa, for 15 min.

The compositions, wt.%:

Composition I

Butyl rubber Bitumen / Filling 5-Hinondioxime

Composition P

Carboxyl-containing butyl rubber Polyacetalurethane oligomer

1.4-7.6 1.4-4.9

0.6-1.4 0.3-0.4

The resulting compositions roll on the mixing rollers at a temperature of rolls not higher. Then the compotes are dissolved separately from each other in a solvent in a batch mixer for a period of. . 0.5-1 hour

The dissolved compounds are poured into metal barrels, separately I and I compositions.

Before use for the device of roll-free roofing, composition I is mixed with composition II in a 1: 1 ratio with the help of various mixing devices and immediately applied to the surface being insulated.

The compositions of the proposed and known mastic are given in table. one.

The properties of mastic, which characterize the rate of vulcanization, are given in Table. 2

The data table. 2 show that the rate of wooh (the canization of the proposed compositions is much higher, the formation of the structure of the material ends in 0.5-1 h, while in the known this time reaches 8 hours.

The performance properties of vulcanized mastics are given in table.

As can be seen from the above data, the proposed compositions of mastics in terms of operational properties are superior to the known mastic.

Mastic can be used in the construction of the device for roll-free roofing and repair of roll roofing. Filler: 2.8 2.8 kaolin asbestos Bitumen Carboxyl-containing butyl rubber Antiseptic: 0.3 0.3 peN -chlorophenol creosote oil Poly-acetal urethane radiogomer Solvent: 75.6 74.4 toluene xiol

Table 1

. 8 h 1,02,32,7 Relative udpiniiye,%, through

0.5 h124, 580550

1.0 part 128725704

1.5 ch136 710700

5,0 h. . 404715702

8.0 h680705694

Residual elongation,%, through

0.5 h-14,04,13,8

1.0 h13,62,11,9

1,5h12,82,02,0

5,08,82,01,8

840ch4.42 | i21.8

ok

1 Adhesion to concrete, MPa, Cherezh

0.5 h0.040,800.90

1,0 h0,081,101,10

1.5h0,101,201,12 5,0 h0,301,101,12 8,0 h0,601,151,10

Heat resistance for 5 hours, C12d

Brittleness temperature,

-65

2.3

540 674 670 666 665

3.6 1.7 1.7 1.8 1.8

0.90 1.00 0.95

o; 95

1.05

Table 3

160

160

165 -70

-71 -68

(

0.05

Water absorption,%

Adhesion;, MPa

Claims (3)

1. Krasnovska O.A. and others. Bituminous-polymer roofing and waterproofing materials. Overview information. M., VNIIESM, ser. 6, vt.1, 1980, p.13-14. 2. USSR author's certificate number 42486E, cl. C 08 L 95/00, 1971. 3. USSR author's certificate number 516720, cl. C 08 L 95/00, 1975 (prototype).