Nga ekika kya kapiira akatali ka polar nga kaliko olujegere olukulu olujjudde, ethylene propylene rubber erina omulimu omulungi ennyo mu kuziyiza embeera y’obudde, okuziyiza emikutu gy’enjuba, okuziyiza okukaddiwa, okuziyiza ozone, n’ebirala Kyokka, waliwo ebika bingi ebya ethylene propylene rubber. However, there are many grades of ethylene propylene rubber, different grades of ethylene propylene rubber with different ethylene content, third monomer type and content, mooney viscosity, etc. In order to facilitate the technicians to choose the appropriate grade of ethylene propylene rubber, this paper selects a few typical types of the ENB type ethylene propylene rubber which is the most widely used in the industry, and makes a certain study Ku bikolwa by’ebirimu ethylene, ebirimu monomer eby’okusatu n’obuzito bwa Mooney ku nkola y’ekintu. Okunoonyereza okumu kukoleddwa, nga kino kirina amakulu agamu agalungamya.
Olw’okukulaakulanya tekinologiya n’embeera z’abantu, obwetaavu bw’abantu ku bintu ebya langi enzirugavu nabwo bweyongera, ebintu ebya langi enzirugavu n’ebya langi bigenda biyingira mpolampola mu bulamu bw’abantu, silika ng’ekirungo ekikulu ekinyweza ebintu ebya langi enzirugavu kyeyongera okukola omulimu omukulu.
Nga ekirungo ekinyweza okusinga ekikozesebwa mu bintu ebya langi enzirugavu, silika agenda yeeyongera okukola omulimu omukulu.
Ebivuddemu n'okukubaganya ebirowoozo .
1 vulcanization omulimu gwa ethylene propylene rubber .
Enkola y’ebirimu ethylene ku budde obw’okwokya (TC10) n’enkola ennungi eya ethylene propylene rubber.
（The effect of ethylene content on the curing time of ethylene propylene rubber (tc10) and process vulcanization time (tc90) is large, with the increase of ethylene content, the tc10 and tc90 of the material are shortened gradually, the content of the third monomer also has a certain effect on the tc10 and tc90, when the material is close to the same content of ethylene or the Kye kimu, ebirimu mu monomera eyokusatu gye bikoma okuba wansi, TC10 ne TC90 gye bikoma okuba ebimpi; Torque esinga obutono (ml) ey’ekintu, gyekoma okuba wansi mu monomera eyokusatu.
The minimum torque (ML) of the material is mainly affected by the ethylene content, the higher the ethylene content, the greater the ML of the material, the worse the mobility at the beginning of vulcanization, because the maximum torque (MH) can reflect the modulus of the rubber, it can be seen that with the increase of ethylene content, the modulus of the rubber also increases gradually, the third monomer content on the modulus of the material is positively Ekigerageranyo n’omugabo gw’ebirimu monomera eyokusatu gye bikoma okuba waggulu ebiri mu kintu, modulo y’ekintu gyekoma okuba ennene, modulo y’ekintu gy’ekoma okuba ennene, modulo y’ekintu gy’ekoma okuba ennene. Ku content ya ethylene y’emu oba efaanagana, monomera eyokusatu gyekoma okuba waggulu, modulo gyekoma okuba waggulu. The difference between the highest torque and the lowest torque (MH -ML) is used to characterize the cross-linking degree of the rubber material, and it can be seen that the ethylene content and the third monomer content have the same effect on the cross-linking degree, the higher the ethylene content the greater the cross-linking degree, and the higher the content of the third monomer, the higher the cross-linking degree of the material is also higher.
2 Eby’obutonde eby’ebyuma eby’okunoonyereza okw’enjawulo okwa ethylene propylene .
Obukakanyavu bwa kapiira businga kukosebwa ekirungo kya ethylene, n’ebirimu ethylene, obugumu bwa kapiira gye bukoma okuba waggulu, ekirungo kya monomera eky’okusatu kye kikola kitono ku bukaluba; material tensile strength and tear strength by ethylene is more obvious, with the increase of ethylene content, the material tensile strength and tear strength are gradually increased, when the ethylene content is similar or the same, the higher the third monomer content, the higher the material tensile strength and tear strength, indicating that ethylene content is the same, the higher the material tensile strength, the higher the material tensile strength, the higher the material tensile strength, the higher the material Amaanyi g’okusika, amaanyi g’okusika kw’ebintu gye gakoma okuba waggulu, amaanyi g’okusika kw’ebintu gye gakoma okuba waggulu n’amaanyi g’okukutula. Mu ngeri y’emu, ekirungo kya monomera eky’okusatu gye kikoma okuba waggulu, amaanyi g’okusika n’amaanyi g’okukutuka kw’ekintu gye bikoma okuba waggulu, ekiraga nti ebirimu ethylene n’ebirimu bya monomera eby’okusatu ku maanyi g’ekikolwa ky’ekikolwa eky’okukwatagana; Ethylene content ne third monomer content of the material stretching stress bifaanagana n’enkosa ku maanyi g’ekintu, ethylene gyekoma okuba waggulu mu kintu, gyekoma okuba waggulu monomer ey’okusatu ey’okusika kw’ekintu ekikwatagana gye zikoma okuba ennene; Ethylene content of the tensile elongation of a small effect, mu bbanga erimu ery’okuwanvuwa okuwanvuwa kw’ekintu n’okweyongera kw’ebirimu ethylene, okutuuka ku kifo ekimu, amaanyi g’okusika n’amaanyi g’okukutula kw’ekintu byeyongera mpolampola, okutuuka ku kifo ekimu, ekitundu eky’okusatu gye kikoma okuba waggulu. Mu bbanga erimu, okuwanvuwa mu kumenya kweyongera mpolampola n’okweyongera kw’ebirimu ebisinziira ku ethylene, n’oluvannyuma ne kutandika okukendeera mpolampola oluvannyuma lw’eddaala erigere, ebirimu bya monomera eby’okusatu biba bigeraageranye mu ngeri ey’ekifuulannenge n’enkyukakyuka y’okuwanvuwa mu kumenya, olw’ebirimu ebisinziira ku ethylene bye bimu oba ebifaanagana, n’ebirimu ebya wansi ebya monomera ey’okusatu, n’okuwanvuwa okunene oba okufaanagana kw’ekintu; Enkola y’okusika (abrasion performance) y’ekintu erina enkolagana ennene n’obukaluba n’amaanyi gaakyo, okutwalira awamu, obugumu n’amaanyi gye bikoma okuba waggulu, obuzito bw’okusika bujja kuba butono okusinziira ku ekyo, era omulimu gw’okusika gujja kuba bulungi; Nga ebirimu ebisinziira ku ethylene bwe byeyongera, waliwo enkolagana ezimu wakati w’obukaluba n’amaanyi n’enkola y’okusika kw’ekintu. Obukaluba bw’ebintu n’amaanyi birina ekigero ekimu eky’okweyongera, obuzito bw’okusiiga bwakendeera mpolampola, enjuyi zombi ez’ebirimu monomer ez’okusatu nazo zijja kukosa eby’obugagga by’ekintu eky’okusiiga, ebyeyoleka mu kweyongera kw’ebirimu ebya monomera eby’okusatu, bijja kukendeeza ku bunene bw’ekintu ekisika eky’ebintu, naye okugeraageranya ku bikolwa by’ebirimu ebya ethylene, ebirimu eby’okusatu ebya monomer tebirina kinene kye bikosa ku birungo bya Abrasive.
3 Enjawulo ya ethylene propylene omupiira gugumira ebbugumu okukaddiwa
Kiyinza okulabibwa nti, oluvannyuma lw’okukaddiwa ku 160 °C okumala 24h, obukaluba bw’ekintu bukyuka kitono nnyo, situleesi y’okusika buli kiseera yeeyongera katono, naye okutwalira awamu omuwendo gw’okusigala gubeera waggulu, amaanyi g’okusika gakendeera katono, omuwendo gw’okusigala okutwalira awamu gusigala waggulu, era omuwendo gw’okuwanvuwa ogw’okusika gulongooseddwa katono; Kino kiri bwe kityo kubanga omupiira gwa ethylene-propylene guba gwa kapiira nga guliko olujegere olukulu olujjudde, nga luno lulina obuziyiza obw’okukaddiwa okw’amaanyi n’empewo. Olw’okuziyiza okukaddiwa okw’empewo okw’ebbugumu okulungi ennyo okwa ethylene propylene rubber, kizibu okulaga ekikolwa kya ethylene ebirimu n’ebirimu monomer eby’okusatu ku kukaddiwa kw’ekintu mu kiseera ekitono eky’okukaddiwa kw’empewo eyokya.
4 Ethylene propylene rubber low temperature resistance .
Olw’okweyongera kw’ekirungo kya ethylene, obuziyiza bw’ebbugumu obutono obw’ekintu bugenda bweyongera mpolampola.
Olw’okweyongera kw’ebirimu ethylene, obuziyiza bw’ebbugumu obutono obw’ekintu bugenda bweyongera mpolampola, n’ebirimu ethylene y’emu oba efaanagana, n’ebirimu ebya monomera ey’okusatu gye bikoma okuba wansi, obuziyiza bw’ebbugumu obutono obw’ekintu, kino kiri bwe kityo kubanga ekirungo kya ethylene ekya ethylene propylene rubber okweyongera, diguli yaakyo n’okulinnya kw’obuziba bw’obutonde bw’ebintu (etherlies) n’okulinnya kw’obuziba bwayo ( Okweyongera kw’obusobozi bw’okufuuka ekiristaayo kijja kuleeta okweyongera kw’obugumu n’amaanyi g’ekintu, naye era kikendeeze ku bugonvu bw’olujegere lwa molekyu okutwaliza awamu, olwo okuziyiza ebbugumu eri wansi kw’ekintu ne kwonooneka. Ebirimu mu kibinja kya ethylene bwe biba nga biri kumpi ne munne, ebirimu ebya wansi ebya monomera ey’okusatu bijja kuleeta ddiguli eya wansi ey’okusalasala kw’ekintu, ekijja okwongera ku bugonvu bwa molekyu okutwaliza awamu, n’okulongoosa obuziyiza bw’ebbugumu obutono obw’ekintu.
Mu bufunzi
(1) Ebika eby’enjawulo ebya ethylene propylene rubber, ethylene ebirimu bye bisinga okukwata ku nsonga zonna ez’omulimu, nga bigobererwa ebirimu byayo eby’okusatu ebya monomer, Mooney Viscosity erina kinene ky’ekola ku nkola yaayo ey’okukola, era erina enkizo entono ku bintu ebirala.
(2) Ku kika kya monomera eky’okusatu kye kimu n’ebirimu ebya ethylene propylene rubber, ethylene gyekoma okuba waggulu, amaanyi g’ebyuma gye gakoma okuba amanene, okuziyiza okukaddiwa kw’ebbugumu n’empewo, naye okuziyiza kwayo ku bbugumu eri wansi kuba kwa bubi.
(3) Ku kirungo kya ethylene kye kimu ekya ethylene propylene rubber, gye kikoma okubeera ekinene mu monomera eyokusatu, amaanyi g’ebyuma gye gakoma okuba amanene, n’obuziyiza bw’ebbugumu n’empewo okukaddiwa gye bikoma okuba ebirungi, naye n’obuziyiza bw’ebbugumu obutono.
