Zinc oxide kirungo ekikola ennyo ekikozesebwa mu kukola emipiira. Mu kukola kapiira, kasasiro n’okuddamu okukola kapiira biyinza okufulumya ebirungo bya zinki, ne kireeta obulabe ku butonde bw’ensi, n’olwekyo obungi bwa zinki okisayidi mu nkola ya kapiira bulina okukendeezebwa. active zinc oxide erina obutundutundu obutono, ekitundu ekinene eky’okungulu, omulimu gwa vulcanization ogw’amaanyi, bw’ogeraageranya ne zinc oxide eya bulijjo, obungi bwa active zinc oxide bukendeera, bwe kityo ne kikendeeza ku bulabe bwa zinc eri obutonde, ekiraga emigaso gy’obutonde n’ebyenfuna.
Zinc oxide active , ekolebwa nga tukozesa enkola ennyogovu, okugatta okutonnya n’okwokya, okuvaamu active zinc oxide ne transparent zinc oxide okwawukana ku nkola ey’ennono ey’okufumbisa etali butereevu ekozesebwa abakola abalala bangi. Enkola ennyogovu erina eddaala erya waggulu ery’obutakyukakyuka mu mutindo, enkola eno era evaamu ekitundu ekinene eky’enjawulo (40m2/g) n’okusaasaana okulungi okw’obunene bw’obutundutundu ku mirimu mingi, era obucaafu obutono obw’ebyuma ebizito kye kimu ku bikakasa obutonde bw’ensi eby’ekintu kino.
Enkola y’okukola enkola ennyogovu eri bweti: okukwatagana kwa zinki ingot ne sulphuric acid okukola zinc sulfate, n’oluvannyuma okukwatagana kwayo ne sodium carbonate okukola zinc carbonate nga ekigimusa okukola zinc oxide. Nga zinc carbonate y’ekigimusa, zinc oxide ekolebwa nga enaaba, okukala, okugisiiga n’okubetenta.
Obunene bw’obutundutundu bwa zinki okisayidi akola buba 50nm, obuwanvu obw’enjawulo obw’okungulu bunene, nga 40m2/g, era obuwundo buba bwa njuki, buyitiridde era nga bulimu obutuli, kale okusaasaana kulungi; sipiidi yaayo ey’okusaasaana ya mangu okusinga zinki okisayidi eya bulijjo, okusaasaana kwa kimu, mu nsengekera okulongoosa ekintu eky’okugatta omukutu, okusinga esobola okukolagana ddala; ebyuma ebizito Pb2 +, Cu2 +, Cd2 +, Mn2 +, Fe2 + ebirimu bitono nnyo, nga bikwatagana n’ebyetaago by’okukuuma obutonde.
Okukozesa Ebintu
Zinc oxide mu makolero ga kapiira asinga kukozesebwa nga rubber vulcanization active agent (accelerating agent), omulimu gwayo kwe kwongera ku activation ya vulcanization accelerator n’okulongoosa vulcanization effect ya rubber. Enkola yaayo ey’ensengekera ye: zinki okisayidi n’ensengekera y’eddagala erya accelerator okukola omunnyo gwa zinki ogw’amangu; omunnyo gwa zinki ogwa accelerator ne molekyo za polysulfide okukola omunnyo gwa zinki ogwa polysulfide; polysulfide zinc omunnyo ne kapiira macromolecule reaction okumaliriza eddagala erisembayo crosslinking, bwe kityo okutumbula vulcanization ya kapiira, activation n’okunyweza omulimu gw’okulwanyisa okukaddiwa, okutuuka ku kutebenkera, obukuumi mu kukola, eddaala eddene ery’okukendeeza ku kigero ekikyamu, n’okulongoosa ebiva mu kapiira, okuziyiza okukutuka, okuziyiza abrasion, n’okwongera fixed elongation ya vulcanized kapiira, n’okwongera ku bikolwa bya kapiira vulcanization. Era okulongoosa vulcanized rubber okugolola stress, tensile amaanyi n'okuwanvuwa, okukendeeza compression permanent deformation, n'ebirala.
1. Zinc oxide ekola mu nkola ya semi-steel radial tire innerliner
Mu mbeera ze zimu, okukozesa active zinc oxide 2 # formula rubber curing speed okusinga okukozesa zinc oxide 1 # formula rubber eya bulijjo kweyongera emirundi nga 1; 3 # formula ya active zinc oxide dosage eri 1 yokka # formula ya ordinary zinc oxide dosage ya 80%, naye 3 # formula rubber curing speed ekyali ya mangu nnyo okusinga formula ya rubber l. 3 formulations of rubber coking properties, obuzito bwa Menni si njawulo nnene.
Test formula vulcanized rubber hardness, constant tensile stress, tensile strength and tear strength okusinga production formula vulcanized rubber erongooseddwa, okuziyiza obukoowu n’omutindo gw’okukola flexural gugeraageranyizibwa, ebbugumu n’empewo okukaddiwa performance yakendeera katono.
active zinc oxide mu kifo kya zinc oxide eya bulijjo ekozesebwa mu semi-steel radial tire inner ply rubber, curing rubber physical properties n’okukozesa ordinary zinc oxide curing rubber level egeraageranyizibwa ku ya rubber, rubber vulcanization speed eyanguwa, ekiyamba okukendeeza ku vulcanization time. Okukozesa active zinc oxide kiyinza okukendeeza ku bungi bwa zinc oxide, okutuukagana n’ebyetaago by’okukuuma obutonde.
2. Okukozesa active zinc oxide mu radial tire tread rubber
Olw’okweyongera kw’obungi bwa active zinc oxide, TC10 ne TC90 okutwalira awamu enkola y’okukula. ML ne MH tebakyuse nnyo. Kino kitegeeza nti active zinc oxide asobola okukozesebwa mu bungi obukendedde.
Amaanyi g’okusika, okuwanvuwa 100%, okuwanvuwa 300% n’amaanyi g’okukutuka ga kapiira tebyakyuka nnyo ng’omuwendo gwa zinc oxide akola gweyongera. Omuwendo bwe gusukka ebitundu 5, amaanyi g’okukutuka ga kapiira aka vulcanized gakendeera inst ead, ekiva ku kweyongera okuyitiridde kwa crosslink density. Oluvannyuma lw’okukaddiwa ku 100 °C× 24h, omutindo gw’okukuuma omulimu gw’ekirungo kya kapiira ekirimu ebitundu 3 ebya zinc oxide ekola gwe gusinga, ate ogwo nga gulina ebitundu 2.5 eby’omuwendo gwe gusinga obubi. Ensonga eyinza okuba obungi bw’ebitundu 2.5, ensengekera y’akatimba ka kapiira aka vulcanized si ntuukiridde, nga kino nakyo kyeyolekera mu kuwanvuwa kwe kumu ku kukutuka, okukyukakyuka okw’olubeerera ku kukutuka, Shore hardness, n’omutindo gw’okukola ebbugumu ery’okunyigirizibwa.
Okwongerako active zinc oxide rubber blend, TC10 ne TC90 kiwanvu nnyo, torque entono ML, torque esinga obunene Mn n’enjawulo wakati wa MH zombi a ML byeyongera, ekiraga nti obukuumi bwayo obw’okulongoosa, sipiidi ya vulcanization egenda mpola, diguli y’okusalasala yeeyongera, amaanyi gaayo ag’okusika, 100% fixed elongation, 300% fixed elongation ne amaanyi g’amaziga galongooseddwa, 100 °C × 24h okukaddiwa, eby’obugagga by’ekyokulabirako eby’omutindo gw’okukuuma nnyo Oluvannyuma lw’okukaddiwa ku 100 °C × 24h, omutindo gw’okusigala ogw’omutindo gw’ekyokulabirako gulongooseddwa nnyo. Zinc oxide ekola bw’ekozesebwa mu bungi obukendedde, TC90 - TS1 ekendeera, enkyukakyuka za ML ne MH teziba za maanyi, era eby’ebyuma eby’enkyukakyuka za kapiira ezifuuse vulcanized tebyeyoleka; Ebitundu 2.5 ku ddoozi, okuziyiza okukaddiwa kwa kapiira aka vulcanized kukendeera, kale omuwendo gusobola okukendeezebwa okutuuka ku bitundu 3 ku ddoozi egenda okukozesebwa.
Ebirungi ebiri mu zinc oxide
Okuyita mu biwandiiko eby’okugezesa eby’ebintu ebyo waggulu, kiyinza okuyigibwa nti active zinc oxide asobola okukozesebwa ennyo mu bintu eby’enjawulo ebya kapiira.
(1) Kirina okusaasaana okulungi mu kintu kya kapiira, era eby’obutonde n’ebyuma bilongoosebwa;
(2) Mu nkola ya vulcanization. Obudde bw’okukola coking (coking) ekintu kya kapiira buba buwanvu, obukuumi bw’okukola vulcanization bulongooka, era n’obulungi bw’okukola vulcanization bulongooka;
(3) Olw’obuwanvu obw’enjawulo obw’okungulu n’obutundutundu obutono obwa zinki okisayidi ekola , esobola okukozesebwa mu bungi obukendedde mu kwongerako ebintu ebimu ebya kapiira.
