SU812808A1 - Composition for rolled hydroinsulating material - Google Patents

Description

I The invention relates to high-molecular compounds, in particular to waterproofed roll materials, and can be used in the industry of building materials, for example, in the construction of canals, dams, oil and gas pipelines, in rubber products factories. The known composition consists of rubber bitumen, asbestos, coumarone resin, abietic acid C. Material deficiency is the use of expensive and scarce components: rubber, abietic acid, and also insufficiently high physical co-mechanical properties. H1 more closely to the invention is a composition for a roll-roll valet, including bitumen, rubber crumb, arbest 2}. The disadvantages of this composition are low properties of the obtained materials tensile strength at break (7.8 kgf / cm) and low flexibility (+ lc). The purpose of the invention is to reduce the cost of waterproofing materials, expanding the resource base. To achieve the goal of composition up to. Completely contains a gas stove with a specific surface area 33, with the following component ratio,%: Bitum47.0-54jO Rubber crumb 134.0-3.9.0 Asbestos, 0-13, bG Soot1.0-6.0 Characteristic of materials. BN-U oil bitumen, a scientist from Romashki oil, with ico-chemical indicators is used for experiments: Needle penetration depth at (100 g, 5 68 Solubility at, Ohm5.6 Softening temperature, € 96 Flash point in open crucible, hail 325 Solubility in benzene, wt.% 99.6 Content of water-soluble compounds, wt.% 0.24 Water content Traces Weight loss at 160 ° C, 5 hours, wt.% - 1.25 Depth of needle penetration into residue after determination of loss mass,% of initial value 95 Group chemical composition, weight. Paraffin-naphthenic hydrocarbons, 10.95 Monocycloaromatic hydrocarbons16,20 Bqcycloaromatic hydrocarbons16, 90 Polycycloaromatic8 hydrocarbons1.45 Resins 35.00 Asphaltenes 20.50 Rubber crumb obtained from waste tires with a particle size of 1.5 mm and meets the requirements of TU 38-10436-76. meeting the requirements of GOST 12871-67. Soot PGM-33 used in composition has the following characteristics: Average particle diameter, mm 85-100 Specific surface, geometric 32-38 adsorption 32-38 Oil number, ml / 100 g60-80 Content, wt.%: in orod0,4-0,6 kislorod0,3-0,5 rE7-9 Soot - a highly dispersed carbon tional filler. It is also an active structurant. The structural characteristic and physical structure of the surface of the soot have similar performance with asphaltenes. which causes their high activity in the resinous hydrocarbon environment. The surface structure of mineral structure-forming agents has a greater effect on the strength properties of bitumen. Soot PGM-33 has a semi-active specific surface, therefore, the use of soot with an active specific surface gives better results. Example. In a preheated bit in an amount of 47% by weight with ib d 1% by weight of soot, 39% by weight of crumb rubber and mixed in a mixer for 30 minutes, then 13% by weight of asbestos are added and the mass is mixed for an additional 30 minutes. The resulting mixture is rolled at 3040 ° C for 6-8 minutes, calendered, and the finished fabric is tested according to GOST 17176-71. To brisol. About p and m e p 2. The technique is similar to example 1, the content of the components: wt.%: Bitumen 48, rubber crumb 38, soot 2, asbestos 12. Tardum. The technique is similar to examples 1 and 2, the content of components, wt.% Bitumen 50, rubber crumb 37, soot 3, asbestos 1 €. PRI me R 4. The technique is similar to examples 1-3, the content of components, wt.%: Bitumen 52, rubber crumb 36, soot 4, asbestos 8. PRI me R 5. The method is similar to examples 1-4, content of components, wt.%: bitumen 53, rubber crumb 35, soot 6, asbestos 7. PRI me R 6. The technique is similar to examples 1-5, the content of components, wt.%: bitumen 54, rubber crumb 34, soot 6, asbestos 6. Formulation, preparation technologies and physical and mechanical parameters are given in Table 1. As can be seen from the results presented in Table 2, the introduction of carbon black into the composition significantly improves the surface conditions, increases the softening temperature, needle penetration depth, extensibility, tensile strength at break, and flexibility (frost resistance). In table 1-3 presents comparative data showing the advantage of the proposed composition over the known. Thus, the use of the proposed composition will make it possible to obtain materials with improved properties, by reducing the quantities of expensive scarce components, by obtaining cheaper materials. Table 1

47 Rubber crumb 39 Soot PSh-33 1 13 Asbestos Temperature, with 150-160 displacements Formulation, wt.% 48 50. 5253 54 38 37 3635 34 2 3 446 12 10 876 technology for preparing the composition 150-160 150-160 150-160 150-1GO 150-160-175 160-175 Composition and property 30-40 30-40 rollers 30-40 30- 40 calendering Duration, min 60 60. Displacements 6-8 6-8 vstevane Preparations mix-66-68 66-68 66-68 66-68 Physico-mechanical Tensile strength. . at break, kgf / cm 10.2 12.5 16.9 17 Relative elongation,% 80.3 86.0 102.0: 11 Residual elongation,% 28 Water per 24 hours, wt.% 0.36 Elasticity , number of double folds18 Flexibility on a rod with a diameter of 10 lm at a temperature, s

The temperature softening in Kish, ° C

Needle penetration depth at 25 ° C, hail

Extensibility at 25 ° С, cm

Continued table. 1 30-40 30-40 30-40 30-40 33 0

13013313412

122

606050 74

67

5.24.94.7 5.3

Claims (1)

. 5.0 Indicators by examples: EIlZ Z II: j rizol, issued by I GOST Brizol, produced by VPO | aemyh on VPO | 17176-71 (Belorusrez-Br-S attendant j 30-40 30-40 30-40 30-40 30-40 30-40 60 60 6-8 6-8 66-68 66-68 Indicators 18.2 11.5 2 11271 82.5. 115 Not less than 35 2834 0 0.34 0.38 0.2 18 18 -15 -15 -5 81280 Claims of the invention Composition for roll waterproofing material, including bi .tum, crumb rubber and asbestos, in order that, in order to increase the material properties to reduce the cost of the composition, the latter additionally contains furnace gas soot with a specific surface 33 in the following ratio of components, wt.%: 88 Bitumen 47.0-54.0 Rezinova crumb 34.0-39.0 Asbestos6.0-13.0 Soot1.0-6.0 Sources of information rin Tide into account in the examination of USSR Author's Certificate 284,674, Cl, C 04 B 13/30, 1968. GOST 17176-71 (prototype).