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INVENTION
Russian Federation Patent RU2223291
Coverslip WEIGHT FOR MANUFACTURING WATERPROOFING
AND ROOFING MATERIALS AND PROCESS FOR ITS PREPARATION
Name of the inventor: Shigapov GF .; Valiev, MA .; Mulyukov MF .; Kosorenkov DI .; Lebedev, IN
The name of the patentee: OOO "Roof-Service"
Address for correspondence: 423570, Republic of Tatarstan, Nizhnekamsk, GO №6, p / 62, OAO "Nizhnekamsk-Roofing, M.A.Valievu
Starting date of the patent: 2001.05.15
The invention relates to the production of polymer waterproofing construction materials used in the manufacture of roofing, sealants hydroprotective and repair materials used for the protection of various structures, underground pipelines, roads and storage of moisture and condensation. Coating mass for the manufacture of rolled waterproofing and roofing materials include plasticized bituminous binder and a filler. As bituminous plasticized binder it contains a partially vulcanized technical sulfur and organic sulfur-containing vulcanization accelerator - sulfenamide - jointly oxidized mixture of bitumen and premixed solution of ethylene-propylene rubber EPDM of gas oil and kerosene or fuel oil with nephras the polymer concentration in solution 15% and ratio (parts by weight) of bitumen: the above rubber solution 65-75: 20-30, and the amount of fuel oil in the fuel oil mixed with kerosene or fuel oil nephras equal parts 18-25 when amounts of sulfur vulcanizing agents, parts by weight sulfur .: Technical milled 0.5-1.5, 0.5-1.5 sulfenamide. As the covering filler mass contains 5-30 parts by weight Technical powdered sulfur in the total mixture components. The invention includes a method of producing a coating weight, characterized by the steps of temperature conditions in the range 100-190 o C.
DESCRIPTION OF THE INVENTION
The invention relates to the production of polymeric waterproofing construction materials used in the production of roofing, sealing and repair materials used for protection of various structures, underground pipelines, storage facilities and the routes from moisture and condensation.
For the production of waterproof roofing felts are used as impregnating layer bituminous mass, perform basic waterproofing function. In many ways, the quality of the impregnation layer dependent properties of roofing materials and the duration of their service. In most cases, for the production of roll waterproofing materials used for roofing bitumen with GOST 9548-74, which is the basis of the impregnation layer. The main indicators characterizing its properties are penetration, t. E. The depth of needle penetration and softening temperature. To improve the properties of bitumen roofing, increasing the duration of maintaining stable rates apply various modifiers, fillers, plasticizers and other additives. In the manufacture of roofing material is often added crumb rubber, rubber waste production, and / or various polymers, as well as further and fillers used dolomite mineral powder.
The closest to the claimed invention is a composition, are produced by the process of vulcanization of a roofing material, including crumb rubber, bitumen, filler - crushed waste the cord fibers used tires, wherein the binder - reclaimed recycling of used tires (SU 1525177, 1989).
The resulting composition of the specified uncured material has disadvantages for the physical and mechanical characteristics: a lack of high tensile strength, low elongation and flexibility.
An object of the present invention is to provide a coating mass for the production of waterproofing and roofing materials with high physical-chemical properties, resistance to weathering, aging and the effects of hydrostatic, tech in production and low cost.
The task is achieved by obtaining a coating mass for the production of roll waterproofing and roofing materials, including plasticized bituminous binder and a filler, as a plasticized bituminous binder it contains a partially cured technical sulfur and sulfur-containing organic vulcanization accelerator - sulfenamide - together mixture of oxidized bitumen and premixed solution of ethylene propylene rubber EPDM in fuel oil or kerosene with nephras heating the polymer solution concentration of 15% and a ratio (parts by weight) of bitumen: said rubber solution to 65-75: 20-30, and the amount of fuel oil in the fuel oil or kerosene with a mixture of nephras oil with equal parts by weight of 18-25 when amounts of sulfur vulcanizing agents, parts by weight .:
Technical sulfur Hammer - 0.5-1.5
Sulfenamide - 0.5-1.5
as a filler in the covering material contains 5-30 parts by weight Technical powdered sulfur in the total mixture components.
and technical problem is solved by a method of producing the coating mass for the manufacture of rolled waterproofing and roofing materials, when pre-prepared solution of an ethylene-propylene rubber EPDM in a mixture of fuel oil and paraffin or a mixture of fuel oil from nephras mixed with bitumen, together oxidize the resulting mixture was blown at 180 -190 o C, followed by sulfur vulcanizing agents, vulcanization at 150 o C with stirring, ensuring uniform distribution of the curing agents for 60 minutes to form a partially cured bituminous plasticized binder, then at 100-125 o C administered filler - technical milled sulfur - and mixed until uniform. Technological process of coating weight are as follows,
Previously, a solution of ethylene-propylene rubber EPDM in fuel oil and kerosene or Nefras. To do this, crushed into crumbs rubber is mixed with fuel oil and kerosene or nephras at a temperature of 100 o C (+/- 10 o) C and dissolved homogeneously. Further, the heated to a temperature of 150 o C was added bitumen EPDM rubber solution with a solution of bitumen ratios equal to (h w..) Of 65-75: 20-30, and oxidation is carried out by blowing air at a temperature of 180-190 o C to obtain the necessary parameters softening temperature. Then introduced sulfur technical milled in an amount of 0.5-1.5 wt. h. and the organic vulcanization accelerator such as sulfenamide M mark A in an amount of 0.5-1.5 parts by weight and within 60 min, maintaining the temperature at 150 o C, and stirred vulcanized avoid unevenness in the rubber vulcanization plasticizing bituminous binder. After vulcanization the resulting, partially cured plasticized bituminous binder at a temperature of 100-125 o C is added as a filler milled technical sulfur in an amount of 5-30 parts by weight and stir until smooth.
The oxidation bitumen and EPDM rubber solution occurs distilled light oil fractions and increased softening temperature. By controlling the degree of oxidation, the time reference of the vulcanization, the added amount of the filler is prepared a coating mass with the required technical parameters.
Recommended components for the preparation of the coating weight: EPDM rubber 30-60 - TU 2294-022-05766801-02; mazut M-40, M-100 - GOST 10585-75; Nefras C130 / 150 - GOST 10214-78; kerosene TC-1 - GOST 10227-80; heavy gasoline (naphtha), K-6 - TU 0250-001-04855329-94; Powdered sulfur is technical - GOST 127-76; Bitumen 60/90, 90/130 - GOST 22245-90; sulfenamide M, grade A - TU 6-14-756-78.
Embodiments of the preparation coating mass for the production of waterproofing and roofing materials
example 1
Pre-prepared solution of EPDM in a kerosene fuel oil, this particulate EPDM rubber in crumb-40 mixed with fuel oil and kerosene at a temperature of 100 o C to complete dissolution.
Then, the resulting solution is mixed with bitumen and the resulting mixture together oxidized at a temperature of 185 o C by blowing air over 2-2.5 hours. Next, at 150 o C combined with sulfur and sulfenamide and cured for 60 minutes while stirring. Stirring should be uniform throughout the volume to ensure homogeneity. After the partial curing process at 120 o C plasticized bituminous binder is mixed with a filler - powdered sulfur technical and stirred until homogeneity.
The ratio of input components, parts by weight .:
Bitumen BND 90/130 - 70
Rubber EPDM-40 - 3
Fuel oil M-100 - 17
Curing agents:
Technical sulfur Hammer - 1.0
Sulfenamide M, Grade A - 1.0
Filler:
Technical sulfur Hammer - 25
example 2
The composition of the input components in the preparation of the coating mass, mass parts .:
Bitumen BND 90/130 - 75
15% EPDM solution - 20
Curing agents:
Technical sulfur Hammer - 1.5
Sulfenamide M, Grade A - 1.5
Filler:
Technical sulfur Hammer - 30
The hot bitumen is mixed with a previously made solution of the EPDM rubber in fuel oil and kerosene in the proportions. At a temperature of 150 o C was added a vulcanizing agents - sulfur and sulfenamide - and within 60 minutes while maintaining the temperature vulcanized. The vulcanization was carried out at agitation. The resulting plasticized bituminous binder at a temperature of 120-125 o C was added a specified amount of powdered sulfur and thoroughly stirred until homogeneous.
Technical characteristics of the materials produced in Examples presented are listed in Table 1.
Specifications roofing materials made using a coating weight of Examples are shown in Table 2.
CLAIM
1. Coating weight for the manufacture of rolled waterproofing and roofing materials, including plasticized bituminous binder and a filler, characterized in that as plasticized bituminous binder it contains technical partially vulcanized with sulfur and organic sulfur-containing vulcanization accelerator - sulfenamide together oxidized bitumen and a mixture of previously prepared solution EPDM is ethylene-propylene rubber in fuel oil or kerosene with nephras heating the polymer solution concentration of 15% and a ratio, in parts by weight bitumen .:: said rubber solution to 65-75: 20-30, and the amount of fuel oil in the fuel oil or kerosene with a mixture of nephras oil with equal parts by weight of 18-25 When the number of sulfur-containing vulcanizing agents, parts by weight .:
Technical sulfur milled 0.5-1.5
sulfenamide 0.5-1.5
as a filler in the covering material contains 5-30 parts by weight Technical powdered sulfur in the total mixture components.
2. A process for preparing the coating mass for the production of roll, waterproofing and roofing according to claim 1, comprising the steps that a pre-prepared ethylene-propylene rubber EPDM oil solution in a mixture of kerosene and fuel oil or in a mixture with nephras mixed with bitumen, the resulting mixture together oxidized blowing air at a temperature of 180-190 ° C, followed by sulfur vulcanizing agents, vulcanization at 150 ° C with stirring, ensuring uniform distribution of the curing agents for 60 minutes to form a partially cured bituminous plasticized binder, then at 100-125 administered filler ° C - sulfur technical milled and mixed until uniform.
print version
Publication date 18.01.2007gg
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