TR201920177A2 - EPDM rubber composition with increased oil resistance - Google Patents
EPDM rubber composition with increased oil resistance Download PDFInfo
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- TR201920177A2 TR201920177A2 TR2019/20177A TR201920177A TR201920177A2 TR 201920177 A2 TR201920177 A2 TR 201920177A2 TR 2019/20177 A TR2019/20177 A TR 2019/20177A TR 201920177 A TR201920177 A TR 201920177A TR 201920177 A2 TR201920177 A2 TR 201920177A2
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- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 40
- 239000003921 oil Substances 0.000 claims abstract description 40
- 229920001971 elastomer Polymers 0.000 claims abstract description 35
- 239000005060 rubber Substances 0.000 claims abstract description 35
- 239000003208 petroleum Substances 0.000 claims abstract description 23
- 239000006229 carbon black Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 16
- 239000011593 sulfur Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000009472 formulation Methods 0.000 claims abstract description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 239000011701 zinc Substances 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 7
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 7
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 6
- 230000036760 body temperature Effects 0.000 claims description 5
- 239000008240 homogeneous mixture Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010411 cooking Methods 0.000 claims 2
- 239000003209 petroleum derivative Substances 0.000 claims 2
- 238000012856 packing Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 241000237537 Ensis Species 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 241000221020 Hevea Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920001030 Polyethylene Glycol 4000 Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 1
- 229920006229 ethylene acrylic elastomer Polymers 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920005559 polyacrylic rubber Polymers 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Diaphragms And Bellows (AREA)
Abstract
Buluş, petrol ve petrol türevi yağlar ile kısmen temas eden otomobil turbo bağlantı körükleri ve motor aksamına yakın bölgelerde konumlu körüklerde kullanılmak üzere, yağ dayanımı arttırılmış EPDM kauçuk kompozisyonu ve bunun üretim yöntemi ile ilgilidir. Buluşun en önemli özelliği, EPDM kauçuk kompozisyonunun yağ dayanımı özelliğini geliştirmek üzere, EPDM kauçuk kompozisyonu üretiminin ara prosesinde kükürt eklenmesiyle formülasyon içerisindeki karbon siyahının kauçuğu yakmasının engellenmesidir.The invention relates to the EPDM rubber composition with increased oil resistance and its production method, to be used in automobile turbo connection bellows and bellows located close to the engine parts, which are partially in contact with petroleum and petroleum-derived oils. The most important feature of the invention is to prevent the carbon black in the formulation from burning the rubber by adding sulfur in the intermediate process of EPDM rubber composition production in order to improve the oil resistance property of the EPDM rubber composition.
Description
TARIFNAME Yag dayanimi arttirilmis EPDM kauçuk kompozisyonu Teknik Alan Bulus, petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde kullanilmak üzere, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu ve bunun üretim yöntemi ile ilgilidir. DESCRIPTION EPDM rubber composition with increased oil resistance Technical Area Automotive turbo coupling bellows in partial contact with petroleum and petroleum-derived oils and oil resistance, to be used in bellows located close to the engine parts It relates to the enhanced EPDM rubber composition and its production method.
Teknigin Bilinen Durumu Hevea brasi'l'i'ensis adi verilen tropikal agaçlardan elde edilen bitkisel bir ürün olan kauçuk, sahip oldugu esneklik, asinma dayanimi, su geçirmezlik gibi özellikleri sayesinde birçok sanayi dalinda önemli bir madde halini almaktadir. Günümüzde tropikal agaçtan üretiminin sinirli ve maliyetinin yüksek olmasi suni kauçuk üretime olan ihtiyaci arttirmaktadir. State of the Art Rubber, a vegetable product obtained from tropical trees called Hevea brasi'l'i'ensis, Thanks to its flexibility, abrasion resistance, and waterproofing properties, many becomes an important item in the industry. Today, the production of tropical wood limited and high cost increases the need for artificial rubber production.
Mevcut teknikte dayanim kapasitesi ve mekanik özellikleri bakimindan otomotiv sektöründe suni kauçuk olarak ACM (poliakrilik kauçuk), AEM ( etilen akrilik kauçuk), FKM (florokarbon kauçuk) ve EPDM (etilen propilen dien monomeri) yaygin sekilde tercih edilmektedir. Özellikle otomotiv sektöründe kullanilacak kauçuk malzemeler seçilirken dikkat edilen en önemli özellik yag dayanimi ve kullanim sicaklik araligidir. In the automotive industry in terms of strength capacity and mechanical properties in the current technique. As artificial rubber, ACM (polyacrylic rubber), AEM (ethylene acrylic rubber), FKM (fluorocarbon rubber) and EPDM (ethylene propylene diene monomer) are widely preferred. The most important consideration when choosing rubber materials to be used especially in the automotive sector. important feature is oil resistance and usage temperature range.
Asil adi etilen propilen kauçugu olan EPDM kauçuk, isi, oksidasyon, ozon ve atmosfer kosullarina olukça dayanikli olup, düsük camsi sicakligina sahiptir. Buna ek olarak fosfat, glikol esasli fren yaglari, su buhari, ozon ve hava kosullarina karsi direnç seviyesi oldukça yüksek bir maddedir. Kullanim sicakligi ise 40-150 °C arasindadir. EPDM kauçuk, bahsedildigi gibi birçok olumlu özelliginin olmasina ragmen özellikle petrol ve petrol bazli yaglara dayanimi maalesef oldukça azdir. Petrol türevi yag ile temasi veya yakitla temasi halinde sisme ve/veya bozulma gösteren bir kauçuk türü oldugu için otomotiv sektöründe petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde tercih edilmemektedir. Bu dezavantajlar dahilinde bilinen teknikte bahsedilen bölgelerde EPDM kauçuk yerine petrol ve petrol türevi yaglara dayanimi yüksek iken, birim fiyati yüksek olmasi nedeniyle ürün maliyetini arttiran bunun yani sira kullanim sirasinda sagliga ve çevreye zararli gaz salinimina neden olan diger alternatif kauçuk çesitleri kullanilmaktadir. EPDM rubber, the noble name of which is ethylene propylene rubber, is resistant to heat, oxidation, ozone and atmosphere. It is very resistant to weather conditions and has a low glassy temperature. In addition, phosphate glycol-based brake oils, water vapor, ozone and weather conditions are highly resistant. It is a high item. The usage temperature is between 40-150 °C. EPDM rubber, As mentioned, although it has many positive features, especially petroleum and petroleum-based Unfortunately, its resistance to oils is very low. Contact with petroleum-derived oil or contact with fuel In the automotive industry, as it is a type of rubber that swells and/or deteriorates if automotive turbocharger bellows partially in contact with petroleum and petroleum-derived oils and It is not preferred in bellows located in areas close to the engine part. This In the regions mentioned in the known art, with disadvantages, instead of EPDM rubber, petroleum and While the resistance to petroleum-derived oils is high, the product has a high unit price. In addition to this, which increases the cost, gas harmful to health and the environment during use Other alternative rubber types are used that cause the release of
Petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde, maliyeti düsük ve elastikiyet özellikleri kuvvetli EPDM kauçugun kullanilabilmesi için EPDM kauçugun yag dayanim özelliginin kismen de olsa gelistirilmesine duyulan ihtiyaç gün geçtikçe artmaktadir. Automotive turbocharger bellows partially in contact with petroleum and petroleum-derived oils and Low cost and elasticity features in bellows located in areas close to the engine part In order to use strong EPDM rubber, the oil resistance feature of EPDM rubber The need for its development, albeit partially, is increasing day by day.
Sonuç olarak yukarida bahsedilen olumsuzluklardan ve eksikliklerden dolayi, ilgili teknik alanda bir yenilik yapma ihtiyaci ortaya çikmistir. As a result, due to the above-mentioned disadvantages and shortcomings, the relevant technical There is a need for innovation in the field.
Bulusun Amaci Mevcut bulus, yukarida bahsedilen gereksinimleri karsilayan, tüm dezavantajlari ortadan kaldiran ve ilave bazi avantajlar getiren, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu ile ilgilidir. Purpose of the Invention The present invention satisfies the above-mentioned requirements, eliminates all disadvantages. EPDM rubber with increased oil resistance that lifts and brings some additional advantages relates to its composition.
Bulusun ana amaci, EPDM kauçuk kompozisyonu yag dayanimi özelligini gelistirmek üzere, EPDM kauçuk kompozisyonu üretiminin ara prosesinde kükürt eklenmesi ile formülasyon içerisindeki karbon siyahinin kauçugu yakmasini engellemektir. The main purpose of the invention is to improve the oil resistance property of EPDM rubber composition, Formulation with the addition of sulfur in the intermediate process of EPDM rubber composition production It is to prevent the carbon black in it from burning the rubber.
Bulusun amaci petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde kullanilmak üzere, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu ortaya koymaktir. The object of the invention is automobile turbo coupling partially in contact with petroleum and petroleum-derived oils. To be used in bellows located close to the bellows and engine parts, oil To reveal an EPDM rubber composition with increased strength.
Bulusun amaci, otomotiv sektöründe kullanilan maliyeti yüksek kauçuklara alternatif hammadde yapisi ortaya koymaktir. The aim of the invention is to provide an alternative to the high cost rubbers used in the automotive industry. to reveal the raw material structure.
Bulusun amaci, otomotiv sektöründe parça üretim maliyetini düsürmektir. The purpose of the invention is to reduce the cost of manufacturing parts in the automotive industry.
Yukarida anlatilan amaçlarin yerine getirilmesi için bulus, petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde kullanilmak üzere, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu olup, özelligi; agirlikça %25-45 oraninda EPDM kauçuk, agirlikça %1-5 oraninda Ievapren kauçuk, agirlikça %30-50 oraninda karbon siyahi, agirlikça %5-15 oraninda beyaz dolgu, oraninda yag, agirlikça %1-10 oraninda yardimci kimyasallar, agirlikça %0,5-2,5 oraninda pisirici ve agirlikça %0,1-1 oraninda kükürt içermektedir. In order to fulfill the above-described purposes, the invention is combined with petroleum and petroleum-derived oils. In areas close to automobile turbocharger bellows and engine parts that come into partial contact EPDM rubber composition with increased oil resistance for use in positioned bellows and its feature is; 25-45% by weight EPDM rubber, 1-5% by weight Ievaprene rubber, 30-50% by weight carbon black, 5-15% by weight white filler, oil, 1-10% by weight auxiliary chemicals, 0.5-2.5% by weight cooker and contains 0.1-1% sulfur by weight.
Yukarida anlatilan amaçlarin yerine getirilmesi için bulus, petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde kullanilmak üzere, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu o EPDM kauçuk ve Ievapren kauçugun gövde sicakligi 35-40 °C olan banbury karistiricisina alinarak parçalanmasi, o formülasyon içerisindeki karbon siyahinin kauçugu yakmasini engellenmek üzere, kullanilacak toplam kükürdün %15'inin kauçuk karisimina ilave edilmesi, - elde edilen karisima sirasiyla beyaz dolgu, toplam karbon siyahinin %25'i, aktif çinko, stearin, yardimci kimyasallar ve yagin eklenmesi, i karbon siyahinin kalan kisminin karisima eklenerek ram basilmasi, i banburyde 120°C sicakliga ulasan hamurun millere indirilerek sekillendirilmesi ve masterbatch olarak ambalajlanmasi, o masterbatch hamuruna kullanilacagi zaman pisiriciler ve kalan kükürt eklenerek homojen bir karisim elde edene dek karistirilmasi, Bulusun yapisal ve karakteristik özellikleri ve tüm avantajlari asagida verilen detayli açiklama sayesinde daha net olarak anlasilacaktir ve bu nedenle degerlendirmenin de bu detayli açiklama göz önüne alinarak yapilmasi gerekmektedir. In order to fulfill the above-described purposes, the invention is combined with petroleum and petroleum-derived oils. In areas close to automobile turbocharger bellows and engine parts that come into partial contact EPDM rubber composition with increased oil resistance for use in positioned bellows o Banbury body temperature of EPDM rubber and Ievaprene rubber is 35-40 °C disintegrating by taking it to the mixer, o To prevent the carbon black in the formulation from burning the rubber, adding 15% of the total sulfur to be used to the rubber mixture, - the resulting mixture, respectively, white filler, 25% of the total carbon black, active zinc, adding stearin, auxiliary chemicals and oil, Pressing ram by adding the remaining part of carbon black to the mixture, i Forming the dough, which reaches a temperature of 120°C in Banbury, by lowering it onto the spindles and packaging as masterbatch, o When it will be used in masterbatch dough, by adding cookers and remaining sulfur mixing until a homogeneous mixture is obtained, The structural and characteristic features of the invention and all its advantages are described in detail below. will be more clearly understood by means of must be made taking into account the description.
Bulusun Detayli Açiklamasi Bu detayli açiklamada, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu, sadece konunun daha iyi anlasilmasina yönelik olarak ve hiçbir sinirlayici etki olusturmayacak sekilde açiklanmaktadir. Detailed Description of the Invention In this detailed description, the oil resistance enhanced EPDM rubber composition is only for a better understanding of the subject and will not have any limiting effect is explained in the following.
Bulus, petrol ve petrol türevi yaglar ile kismen temas eden otomobil turbo baglanti körükleri ve motor aksamina yakin bölgelerde konumlu körüklerde kullanilmak üzere, yag dayanimi arttirilmis EPDM kauçuk kompozisyonu ve bunun üretim yöntemi ile ilgidir. Bulusun en önemli özelligi, EPDM kauçuk kompozisyonunun yag dayanimi özelligini gelistirmek üzere, EPDM kauçuk kompozisyonu üretiminin ara prosesinde kükürt eklenmesiyle formülasyon içerisindeki karbon siyahinin kauçugu yakmasinin engellenmesidir. Automotive turbo coupling bellows in partial contact with petroleum and petroleum-derived oils and oil resistance, to be used in bellows located close to the engine parts It is about the enhanced EPDM rubber composition and its production method. Find the best important feature is to improve the oil resistance property of the EPDM rubber composition, Formulation with the addition of sulfur in the intermediate process of EPDM rubber composition production It is to prevent the carbon black in it from burning the rubber.
Bulus konusu EPDM kauçuk kompozisyonunun formülasyonu; Içerik Agirlikça tercih Agirlikça kullanilabilir edilen miktar (%) miktar (%) EPDlVI kauçuk 37 25-45 Levapren kauçuk 2 1-5 Karbon siyahi 40 30-50 Beyaz dolgu 10 5-15 Aktif çinko 0,5 0,1-1 Stearin 0.2 0,1-0,5 Yardimci kimyasallar 4 1-10 Bulusa konu EPDM kauçuk kompozisyonunda kullanilan beyaz dolgu maddesi ile karbon siyahi kauçugun istenilen kuvvetlendirme derecesine ve islenebilirlik özelligine sahip olmasini saglamaktadir. The formulation of the subject of the invention EPDM rubber composition; Content Weight preferred Can be used by weight amount removed (%) amount (%) EPDlVI rubber 37 25-45 Levaprene rubber 2 1-5 Carbon black 40 30-50 White filler 10 5-15 Active zinc 0.5 0.1-1 Stearin 0.2 0.1-0.5 Auxiliary chemicals 4 1-10 The white filler used in the EPDM rubber composition, which is the subject of the invention, and the carbon Black rubber has the desired degree of strengthening and machinability. makes it happen.
Bulusa konu EPDM kauçuk kompozisyonunda kauçugu kuvvetlendirmek amaciyla kullanilan aktif çinko küçük taneli yapisi ile kauçuk kompozisyonunda iyi disperse olmaktadir. Çinko yerine daha küçük taneli ve daha yogun aktif çinko kullanilmasinin sebebi ise, çevre ve insan sagligina zararsiz ürün üretebilmektir. It is used to strengthen the rubber in the EPDM rubber composition which is the subject of the invention. Active zinc is well dispersed in rubber composition with its small grained structure. Zinc The reason for using smaller grained and denser active zinc instead of is to produce products that are harmless to your health.
Bulusa konu EPDM kauçuk kompozisyonunda prosesi kolaylastirmak üzere stearin kullanilmaktadir. In the EPDM rubber composition which is the subject of the invention, stearin is used to facilitate the process. is used.
Bulusun tercih edilen yapilanmasinda yag olarak parafinik yag kullanilmaktadir. Yag, yumusatici olarak kullanilmakta ve ayni zamanda kauçugun isi direnci kazanmasini saglamaktadir. In the preferred embodiment of the invention, paraffinic oil is used as the oil. Oil, It is used as a softener and also helps the rubber to gain heat resistance. it provides.
Yardimci kimyasallar, hamur üretim prosesini kolaylastirmak, ayni zamanda parça üretim prosesinde parçanin kaliptan kolay deforme olmadan çikmasi, kalibi tam doldurmak, pismenin kusursuz tamamlanmasi gibi parçanin üretilebilirligini kolaylastirmak amaciyla kullanilmaktadir. Bulusun tercih edilen yapilanmasinda kullanilan yardimci kimyasallar, hamurun akisini ayarlamak üzere Struktol® WB 222, pismeyi iyilestirmek üzere PEG 4000 kullanilmaktadir. Auxiliary chemicals, to facilitate the dough production process, at the same time, piece production In the process, the part comes out of the mold without being easily deformed, fills the mold completely, in order to facilitate the manufacturability of the part, such as the perfect completion of the firing. is used. Auxiliary chemicals used in the preferred embodiment of the invention, Struktol® WB 222 to adjust the flow of dough, PEG 4000 to improve baking is used.
Bulusun tercih edilen yapilanmasinda pisirici olarak MBTS veya ZBEC kullanilabilmektedir. In the preferred embodiment of the invention, MBTS or ZBEC can be used as the cooker.
Bulus konusu EPDM kauçuk kompozisyonunun Üretim yöntemi; o EPDM kauçuk ve Ievapren kauçuk gövde sicakligi 35-40 °C olan banbury karistiricisina alinarak parçalanir, o Formülasyon içerisindeki karbon siyahinin kauçugu yakmasini engellenmek üzere, kullanilacak toplam kükürdün %15`i kadar kauçuk karisimina ilave edilir, 0 Elde edilen karisima sirasiyla beyaz dolgu, toplam karbon siyahinin %25”i kadari, aktif çinko, stearin, yardimci kimyasallar ve yag eklenir, - Nihai karisima karbon siyahinin kalan kismi eklenerek ram basilir, - Banburyde 120°C sicakliga ulasan hamur millere indirilerek sekillendirilir ve masterbatch olarak ambalajlanir, - Kullanilacagi zaman masterbatch hamuruna pisiriciler ve kalan kükürt eklenir, . Homojen karisim saglanip, elde edilen yag dayanimi arttirilmis EPDM kauçuk kompozisyonu uygun sekilde ambalajlanir. Production method of the subject of the invention EPDM rubber composition; o Banbury with EPDM rubber and Ievaprene rubber body temperature of 35-40 °C It is taken into the mixer and it is broken up, o To prevent the carbon black in the formulation from burning the rubber, 15% of the total sulfur to be used is added to the rubber mixture, 0 Respectively, white filler, 25% of the total carbon black, active zinc, stearin, auxiliary chemicals and oil are added, - The ram is printed by adding the remaining part of the carbon black to the final mixture, - The dough, which reaches a temperature of 120°C in Banbury, is shaped by being lowered onto the shafts and packaged as masterbatch, - Cookers and remaining sulfur are added to the masterbatch dough when it is to be used, . EPDM rubber with increased oil resistance obtained by providing a homogeneous mixture The composition is packaged appropriately.
Bulus konusu üretim yönteminin bahsedilen karistirma islemlerinin gerçeklestigi banbury gövde sicakligi 35-40 °C”dir. banbury içerisinde karisan tüm hammaddeler birbiri ile bagdasarak kauçuk hamurunu olusturmaktadir. Banbury where the said mixing processes of the production method which is the subject of the invention take place. body temperature is 35-40 °C. All raw materials mixed in banbury are interrelated with each other. it forms the rubber dough by being compatible.
Bulus konusu üretim yönteminde kullanilan ram, banbury mikserinin bir parçasi olup, karisimin olusmasi için gerekli olan basincin olusturulmasini saglamaktadir. Tüm hammaddelerin üzerine ram ile basinç olusturularak sürtünme ile beraber hamurun olusmasi saglanmaktadir. The ram used in the inventive production method is a part of the banbury mixer. It ensures the creation of the pressure necessary for the formation of the mixture. All Formation of dough with friction by creating pressure on raw materials with ram is provided.
Bulusa konu yöntemde, EPDM kauçuk kompozisyonunun üretiminde kullanilacak kükürt miktarinin %151 kauçuk karisima eklenerek formülasyonda yer alan karbon siyahinin kauçugu yakmasinin (black scorch) önüne geçilmektedir. In the method subject to the invention, the sulfur to be used in the production of the EPDM rubber composition the amount of carbon black in the formulation by adding 151% to the rubber mixture. Rubber burning (black scorch) is prevented.
Mevcut uygulamalarda karbon siyahi içerisinde eser oranda bulunan kükürt kauçuk ile direk bag yaparak kauçugun yanmasina neden olmaktadir. Bahsedilen bu problemi bertaraf etmek üzere, kauçuk karisimina belli oranda eklenen kükürt kauçugun baglanmamis olan baglarinin bir kismini baglayarak karbon siyahi ile kauçugun karismasi esnasinda karbon siyahi içerisindeki kükürtün bir anda kauçugu scorch etmesini önlemektedir. Böylelikle yag dayanimi arttirilmis EPDM formülasyonunun black scorch olmadan üretimi saglanmis olmaktadir. In current applications, it is directly used with sulfur rubber, which is found in trace amounts in carbon black. it causes the rubber to burn by making a bond. To eliminate this problem mentioned The unbonded bonds of the sulfur rubber added to the rubber mixture at a certain rate, such as carbon black during the mixing of carbon black and rubber by bonding a part of it It prevents the sulfur in it from scorching the rubber at once. Thus, oil Production of EPDM formulation with increased strength is ensured without black scorch is happening.
Claims (4)
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| TR2019/20177A TR201920177A2 (en) | 2019-12-13 | 2019-12-13 | EPDM rubber composition with increased oil resistance |
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| Application Number | Priority Date | Filing Date | Title |
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| TR2019/20177A TR201920177A2 (en) | 2019-12-13 | 2019-12-13 | EPDM rubber composition with increased oil resistance |
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| TR201920177A2 true TR201920177A2 (en) | 2021-06-21 |
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