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CHEMICAL SCIENCES
PRODUCTION OF COMPOSITION FOR PROTECTIVE COATINGS ON BASE OF WASTES OF DIAPHRAGM PRODUCTION OF TYRE INDUSTRY Movlayev I.G.1, Ibrahimova S.M.2, Mamedova G.M.3 (Republic of Azerbaijan) Email: [email protected]
1Movlayev Ibrahim Gumbat oglu - Associate Professor; 2Ibrahimova Sinduz Mamed qizi - Senior Teacher, DEPARTMENT TECHNOLOGY OF ORGANIC AND HIGHMOLECULAR COMPOUNDS; 3Mamedova Gulnura Mustafa qizi - Associate Professor, DEPARTMENT OF CHEMISTRY AND INORQANIC SUBSTANCE TECHNOLOGY, FACULTY OF CHEMICAL TECHNOLOGY, AZERBAIJAN STATE UNIVERSITY OF OIL AND TECHNOLOGY, BAKU, REPUBLIC OF AZERBAIJAN
Abstract: the mechanical-chemical modification of the diaphragm rubber, being the waste of diaphragm production of tyre industry, don't answering to state standard with ED-20 epoxy-dean have been conducted and on base of received mixture the emulsion composition have been developed.
Research of properties of received composition shown its high physic mechanical and protective properties. In resents of use the modificated compositions on base of water of diaphragm production of tiger industry for protection of metal constructions, reservoirs, equipment, main road pipe lines used in oil production, oil processing, oil chemistry and another spheres to influence of corrosion, climate conditions warmth and ozone. Keywords: the waste tire industry, diaphragm, rubber mixture based on butyl rubber, epoxy danovy oligomer, modification, protective composition, physico-mechanical and protective properties.
ПОЛУЧЕНИЕ И ИССЛЕДОВАНИЕ КОМПОЗИЦИИ ДЛЯ ЗАЩИТНЫХ ПОКРЫТИЙ НА ОСНОВЕ ОТХОДА ПРОИЗВОДСТВА ДИАФРАГМ ШИННОЙ ПРОМЫШЛЕННОСТИ
1 2 3
Мовлаев И.Г. , Ибрагимова С.М. , Мамедова Г.М. (Азербайджанская Республика)
1Мовлаев Ибрагим Гумбат оглы - кандидат технических наук, доцент;
2Ибрагимова Синдуз Мамед кызы - старший преподаватель, кафедра технологии органических и высокомолекулярных соединений; 3Мамедова Гюльнура Мустафа кызы - кандидат технических наук, доцент, кафедра химии и технологии неорганических веществ, химико-технологический факультет, Азербайджанский государственный университет нефти и промышленности, г. Баку, Азербайджанская Республика
Аннотация: проведена механо-химическая модификация отхода производства диафрагм шинной промышленности, не отвечающей требованиям стандарта диафрагменной резиновой смеси на основе бутилкаучука, эпокси-диановым олигомером и на основе полученной смеси разработана эмульсионная композиция для защитных покрытий. Проведенные исследования показали, что полученная композиция обладает высокими показателями физико-механических и защитных
свойств. Композиция, полученная на основе отхода производства диафрагм шинной промышленности, рекомендована в качестве эффективного покрытия для защиты металлоконструкций, резервуаров, оборудования, используемых в нефтедобывающей, нефтеперерабатывающей, нефтехимической промышленности и других областях, а также магистральных трубопроводов от коррозии и автомобильных шин от воздействия естественных климатических факторов, тепла и озона. Ключевые слова: отход шинной промышленности, диафрагменная резиновая смесь на основе бутилкаучука, эпокси-диановый олигомер, модификация, защитная композиция, физико-механические и защитные свойства.
UDC 678.55:65
The protective coatings on base of polymers are differed by simple method production and reliability of protective influence and therefore are widely used in different spheres.
Because of exploitation of the many products in conditions of cyclic deformation to protective coatings a special demands are presented, including a high stability and elasticity of polymer film. Therefore as a base of protective coatings the elastomers on base of polymer materials are used. But use of expensive and scarce elastomers increase the cost of protective coatings on its base and it is not rational from economical point of view.
At the last year's production of polymer composition materials on base of cheap available raw materials present a special interest.
Taxing this into consideration from literary review it have been determined that in production of diaphragm of tyre industry as a wastes the rubber residues on base on butyl rubber, don't answering to standard are formed [1]. The amount and composition of these wastes give a possibility to use them as protective cover composition instead of expensive deficit elastomers.
The low adhesion, stability to water, aggressive medium and another properties limit the use of protective coatings on base of elastomers. In correction with this, at the last time the research by modification by compounds, in composition of which there are reaction able functional groups are conducted.
It is known that an epoxide resins always present the interest for researchers as component of protective polymer coatings, because these coating only by comparison with coatings on base of thermoplastic polymers materials possess by series of advantage [2-6]. It is connected with high adhesion of epoxide oligomers to different constructions materials, and by its stability to influence of aggressive mediums and waters. The shortage of these compositions conclude in that owing to its high viscosity, for leading of them to protective surface a special equipment and its solification at high temperature are required. It is give the possibility for its use for protection of pipelines, reservoirs and another metal constructions from corrosion in atmosphere climate conditions.
Therefore production of compositions for protective coatings on base of sodificated at the atmospheric climate conditions, available and cheap raw materials is an actual problem.
Take into consideration the above - mentioned, the compositions for protective coatings on base of elastomer - epoxide mixture have been prepared and its properties have been researched.
For production of composition as an elastomer the rubber mixture on base of butyl rubber, being the waste of diaphragm production of tyre industry, no answering to standards demands, having the following composition, mass unit (m.u): BR - 100; PVC - 1,7; OEA - MQF - 9 - 0,2; ambirol resin (ST - 337) - 6,7; zinc oxyde - 5; petrolatum - 7; stearin acid - 2; technical carbon P -5M - 35; P - 234 - 20 (6 pB - 61); epoxy- dian resin ED - 20 and as emulsifying agent -suephanol, gasoline by mark " kalosha " and distillated water have been used.
Production of compositions for protective coatings have been conducted by the following method.
The diaphragm rubber mixture, being the waste of diaphragm production of tyre industry (6p8 - 58) was mixed with epoxy - dian resin (amount of waste was up to 7 mas%) by 110 -1200 C temperature during 15 - 20 minutes.
At the laboratory reactor, supplied by mixer opposite cooler and thermometer the pounded diaphragm production waste, modificated by exoxyde resin and gasoline were added. After the complete dissolving of modificated by epoxyde resin waste of diaphragm production in the system the sulphanol was added and mixture was mixing by 600C temperature during 60 minutes. Then by adding to reaction mixture some amount of water emulsification was continuing during 60 minutes with by mixing with big rate and was cooling up to 200C.
For determination of the optimal content of emulsion composition for protecting coating the influence of introduced components amount on the base properties of composition (dry residue, viscosity, surface tension) have been studied. In results of conducted investigations the optimal content of composition for protective coatings have been determined, mas%: Waster of diaphragm production of tyre production, modificated
by epoxyde resin 5 - 6
Sulphanol 0,4 - 0,48
Correlation of gasolike : water the rest up to 100%
1 : 05
The received composition is untoxical, oving to water in its content, this composition fire stable and dry by atmosphere conditions.
The physic-chemical properties of composition for protective coatings are gives in the table 1 and its physic-mechanical properties - in the table 2.
Table 1. Physic-chemical properties of composition foe protective coatings
Name of indices Indices Standard method of tests
Exterior look Viscous liquid by black color
Dry residue, mas/% 5,42-6,5 State standard 25709-83
Surface tension, mN/m 30-35 State standard 20216-71 (B method)
Viscosity by vz, san 16-22 State standard 8420-74
As it is evident from tables 1, 2 the received composition for preventing coatings is a black color viscous liquid possessing by high physic-mechanical properties, good decorative look and having glitters.
Table 2. Physic-mechanical properties of composition for protective coatings on metal surface
Adhesion by standard 15140-78 Elasticity by Arisen OCT 6-10-411-77, min Glitter by FB-2 Stability of filter, MPa State standard 13522-78
1 >10 26 7-8
For research of protective properties of received protective coatings its stability to water and aggressive medium by state standard 12020 - 72 have been investigated.
In results of conducted research the stability of received coating to water and chemical compounds (20% HCl, 30% H2SO4, 40% NaOH; 3% NaCl) was shown. Some changes on surface of coatings wasn't discovered. Therefore the modificated composition, received on base of waste of diaphragm production of tyre industry have been recommended as an effective anticorrosive coating in metal constructions, reservoirs, equipment, main road pipelines used in oil production, oil processing, oil chemistry and another spheres.
In spite of development of large amount coatings for protection of metals from corrosion, there is not enough works by production of coatings for polymer materials [7, 8, 9].
By exploitation and keeping of tyres its upper rubber layer subjected to influence of oxygen, ozone, sun radiation, high temperature. In result of influence of high mentioned
factors owing to irreversible processes the physic-chemical properties of rubber are worsed and it is decrease the suitability of rubber products.
The most destroying being in atmosphere component for tyre rubber on base of total purpose rubbers are oxygen and ozone. They are a reason of appearance of cracks on upper layer of rubber surface, therefore protection of rubber upper layer and another rubber -technical products from atmosphere conditions is an actual.
Table 3. Stability of protector rubber and protector rubber, covered by protective coating to influence of climate condition by state standard 9006-76 (Baku, 365 days)
Rubbers Stability limit in ductility Relative tension % Coefficient stability to influence of climate conditions Exterior look of sample after 365 days
By stability limit by By relative
Before test of initial rubber 19, 7 450 - - -
Initial rubber without cover 15 360 0, 76 0, 80 By surface
After test cracks
Initial rubber with cover after test 18, 5 450 0, 54 1, 0
Task and one of the ways decision of this problem is put of polymer covers on its surface.
Taxing into consideration the above - mentioned, the tyre rubber compositions, received on base of waster diagram mixture of tyre industry have been used for protection from climate factors, warmth and ozone. For study of protective properties of compositions the stability of protector rubbers and protector rubbers, covered by compositions have been investigated. The received resets are presented in tables 3-5.
In have been determined (Tables 3, 4) that by protector rubber, covered by protective coating the effective protection to influence of climate conditions and warmth is ensured.
As it is evident from table 5, the protector rubber covered by coating is very stable to ozone influence. It is explained by formation of chemical connected structure by modification process of polymer base and owing to impediment of ozone diffusion on surface of rubber.
Table 4. Stability of protector rubber and protector rubber, covered by protective coating to influence of warmth (state standard 241-67,time of tests 36 hours, temperature 100C)
Initial Initial rubbers Initial rubbers with coating after test
Name of indices: rubbers before test without coating after test
Limit of stability by ductility 19, 7 11, 8 15, 3
Relative tension, % 450 290 360
Coefficient resistance to
warmth influence: by limit
of stability in ductility by relative tension 0, 6 0, 64 0, 74 0, 75
Table 5. Stability of protector rubber and protector rubber, covered by protective coatings to influence of ozone (State standard 9026-76) (exposure -12 hours, concentration of ozene-0, 0001)
Name of indices Initial rubber before test Initial rubers without coatings after test Initial rubber with coating after test
Time of cracks formation, hour - The little cracks in large amount The cracks are observed after 10 hour
Limit of stability by ductility, MPa 19, 7 12, 8 18, 8
Relative tension, % 450 315 440
Coefficient resistance to ozone influence: by limit of stability in ductility by relative tension - 0, 65 0, 70 0, 95 0, 97
The conducted tests shown that prepared compositions are the effective protective
coatings for protector rubbers. Therefore these compositions are offered for protection of in
by exploitation of automobile tires and by keeping in granaries.
References in English / Список литературы на английском языке
1. Technological regalement BTP 3267-85.
2. Methods protection of equipment from corrosion. Reference book. After editing of Stroking B.V., Sukhotkin A.M. M.: Chemistry, 1987. 280 p.
3. MuradovA.V. Anticorrosive protection of oil gas pipelines by isolation coating OIL and gas, 2001. № 6. 102 p.
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5. Markov M.A., Korotneva I.S., Mironova N.M., Petukhova E.A. Polymer composition materials and coatings materials of international scientific-technical conference. Issne Yaroslave Makunt Teeh University, 2002. Р. 114.
6. Dkinberg S.F., Kuznetsov V.S., Moskovtsev N.Q. Lacquer-paint materials and its use, 2002. № 1. Р. 10.
7. Bilalov Y.M., Ibrahimova S.M., Shahbazov N.I., Movlayev I.G. Composition for protective coatings for tyre rubbery. Patent of RF 2134278-10.09.99.
8. Bilalov Y.M., Sharts A.G., Ibrahimova S.M., Movlayev I.G. Composition for protective coating of tyre rubbers. Patent of RF 2127743-10.03.99.
9. Bilalov Y.M., Ibrahimova S.M., Movlayev I.N. Composition for protective coatings of tyre rubbers. Patent of AR P 990006.11.01.99.
Список литературы / References
1. Технологический регламент БШЗ № 326ш-85.
2. Способы защиты оборудования от коррозии. Справочник. // Под ред. Строкана Б.В., Сухоткина А.М. М.:Химия, 1987. 280 с.
3. Мурадов А.В. Противокоррозионная защита нефтегазопроводов изоляционными покрытиями. Нефть и газ, 2001. № 6. 102 с.
4. Гасанов Я.Г., Байрамов В.В. Полимерные защитные композиции для нефтяного и нефтехимического оборудования. Баку, 2000. 36 с.
5. Марков М.А., Коротнева И.С., Миронова Н.М., Петухова Е.А. Полимерные композиционные материалы и покрытия // Материалы международной научно-технической конференции. Изд-во: Яросл. Гор. техн. ун-т, 2002. С. 114.
6. Дкинберг С.Ф., Кузнецов В.С., Московцев Н.Г. Лакокрасочные материалы и их применение, 2002. № 1. С. 10.
7. Билалов Я.М., Ибрагимова С.М., Шахбазов Н.И., Мовлаев И.Г. и др. Композиция для защитных покрытий шинных резин. Патент РФ 2134278. 10.09.99.
8. Билалов Я.М., Шварц А.Г., Ибрагимова С.М., Мовлаев И.Г. и др. Композиция для защитных покрытий шинных резин. Патент РФ 2127743.10.03.99.
9. Билалов Я.М., Ибрагимова С.М., Мовлаев И.Г. Композиция для шинных резиновых изделий. Патент АР П 990006.11.01.99.
