Zinc oxide waa wakiil firfircoon oo caadi ahaan loo isticmaalo habaynta caagga. Soo saarista caagga ah, habka qashinka iyo dib-u-warshadaynta ayaa laga yaabaa inay sii daayaan isku dhafka zinc, oo waxyeello u geysta deegaanka, sidaas darteed qadarka zinc oxide ee caanaha caagga ah waa in la yareeyo. Zinc oxide firfircoon wuxuu leeyahay cabbir yar oo qayb yar, dhul ballaaran oo dusha sare ah, dhaqdhaqaaqa sare ee vulcanization, marka la barbar dhigo zinc oxide caadiga ah, qadarka zinc oxide firfircoon ayaa hoos u dhacaya, sidaas darteed hoos u dhigista waxyeelada zinc ee deegaanka, taas oo muujinaysa faa'iidooyinka deegaanka iyo dhaqaalaha.
Zinc oxide firfircoon ayaa la soo saaraa iyadoo la adeegsanayo habka qoyan, isku-darka roobabka iyo dubay, si loo soo saaro zinc oxide firfircoon iyo zinc oxide hufan, oo ka soo horjeeda habka calcination-ka aan tooska ahayn ee dhaqameed ee ay isticmaalaan wax-soo-saarayaal kale oo badan. Habka qoyan wuxuu leeyahay heer sare oo joogto ah oo tayo leh, geeddi-socodku wuxuu sidoo kale keenaa aag ballaaran oo gaar ah (40m2 / g) iyo qaybinta xajmiga qaybta ugu fiican ee codsiyada badan, iyo content hoose ee wasakhda birta culus waa mid ka mid ah dammaanadaha deegaanka ee alaabtan.
Habka wax soo saarka ee habka qoyan waa sida soo socota: zinc ingot iyo falcelinta sulfuric acid si loo dhaliyo zinc sulfate, ka dibna falcelinteeda sodium carbonate si ay u soo saarto zinc carbonate sida alaabta ceeriin ee zinc oxide. Iyadoo zinc carbonate ay tahay walxo ceeriin ah, zinc oxide waxaa lagu soo saaraa dhaqidda, qalajinta, calcining iyo burburin.
Celcelis ahaan cabbirka qayb ka mid ah zinc oxide firfircoon waa 50nm, aagga gaarka ah waa weyn yahay, oo ku saabsan 40m2 / g, iyo kiristaalo waa malab, dabacsan iyo dalool, sidaas darteed kala firidhsan yihiin wanaagsan; Xawaaraha faafintiisa wuu ka dhakhso badan yahay zinc oxide caadiga ah, qaybintu waa lebis, falcelinta si loo hagaajiyo ifafaalaha isku xirka agglomeration, asal ahaan si buuxda ayaa looga falcelin karaa; Biraha culus Pb2 +, Cu2 +, Cd2 +, Mn2 +, Fe2 + ka kooban yahay mid aad u hooseeya, oo waafaqsan shuruudaha ilaalinta deegaanka.
Isticmaalka Alaabta
Zinc oxide ee warshadaha caaga ah ayaa inta badan loo isticmaalaa sida wakiilka firfircoon ee vulcanization caag (dardargelinta wakiilka), shaqada taas oo ah in kor loogu qaado firfircoonida vulcanization dardargelinta iyo hagaajinta saamaynta vulcanization ee caag. Habka falcelintiisu waa: zinc oxide iyo falcelinta kiimikada dardar-geliyaha si loo dhaliyo milixda zinc ee dardargelisa; xawaareeyaha milixda zinc iyo molecules polysulfide si loo dhaliyo milixda zinc polysulfide; polysulfide zinc cusbo iyo falcelinta macromolecule caag si ay u dhamaystiraan crosslinking kiimikada final, si kor loogu qaado vulcanization ee caag ah, firfircoonida iyo xoojinta doorka anti-gabowga, si loo gaaro xasilloonida, ka baaraandegidda ammaanka, heerka weyn ee dhimista heerka cilladaysan, iyo si loo hagaajiyo alaabta caag ah, caabbinta jeexjeexa, caabbinta abrasion, iyo kordhinta saamaynta go'an ee caag ah, iyo kordhinta saamaynta go'an ee caag ah. Oo wanaaji cadaadiska fiditaanka caagga vulcanized, xoogga adkaanta iyo dhererka, la yareeyo isku-duubka qallafsanaanta joogtada ah, iwm.
1. Zinc oxide firfircoon ee codsiga gudaha ee taayirrada shucaaca ee birta ah
Isla qadarka shuruudaha, isticmaalka zinc oxide firfircoon 2 # caag caag ah xawaaraha daaweynta marka loo eego isticmaalka caadiga ah ee zinc oxide 1 # caag ah ayaa kordhay ilaa 1 jeer; 3 # formula ee qiyaasta zinc oxide firfircoon waa kaliya 1 # formula ee qiyaasta zinc oxide ee caadiga ah ee 80%, laakiin 3 # formula ee xawaaraha caagga ah ayaa wali aad uga dheereeya caanaha caagga l. 3 qaab oo ah guryaha coking caag ah, Viscosity Menni ma aha farqi badan.
Tijaabi caanaha caagga ah ee vulcanized, walbahaarka jilicsan ee joogtada ah, xoogga jilicsanaanta iyo xoogga jeexjeexa marka loo eego qaabka wax soo saarka caagga la xumeeyay ayaa fiicnaaday, caabbinta daalka iyo heerka waxqabadka dabacsanaantu waa isbarbardhig, kulaylka iyo waxqabadka gabowga hawada ayaa yara yaraatay.
Zinc oxide firfircoon halkii uu ka ahaan lahaa zinc oxide caadiga ah ee loo isticmaalo caag-xawaalad-xawaaraha hoose ee taayirada gudaha ah, daawaynta guryaha caagga ah iyo isticmaalka heerka caagga ah ee zinc oxide ee caadiga ah ayaa la mid ah midka caagga ah, xawaaraha vulcanization caagga ayaa la dardargeliyay, taas oo ku habboon in la gaabiyo wakhtiga vulcanization. Isticmaalka zinc oxide firfircoon wuxuu yarayn karaa xaddiga zinc oxide, oo aad ula qabsan kara shuruudaha ilaalinta deegaanka.
2. Codsiga zinc oxide firfircoon ee caag ku tumashada taayirrada radial
Iyada oo korodhka xaddiga zinc oxide firfircoon, TC10 iyo TC90 guud ahaan isbeddelka koritaanka. ML iyo MH wax badan iskamay beddelin. Tani waxay ka dhigan tahay in zinc oxide firfircoon loo isticmaali karo qadar yar.
Awoodda xajinta, 100% dhererka, 300% dhererka iyo xoogga jeexjeexa caaggu si weyn uma beddelin kororka xaddiga zinc oxide ee firfircoon. Marka qiyaastu ka badato 5 qaybood, xoogga jeexjeexa caagga vulcanized ah ayaa hoos u dhacaya , kaas oo ay sababto kororka xad dhaafka ah ee cufnaanta isku xirka. Ka dib da'da 100 ℃ × 24h, heerka haynta waxqabadka ee xarunta caaga ah oo leh 3 qaybood oo ah zinc oxide firfircoon ayaa ah kan ugu fiican, iyo in 2.5 qaybood oo qiyaasta ah ay tahay tan ugu xun. Sababtu waxay noqon kartaa qadarka qaybaha 2.5, qaab dhismeedka mesh caag ah ee vulcanized ma aha mid qumman, kaas oo sidoo kale ka muuqda dhererka isku midka ah ee jeexjeexa, qallafsanaanta joogtada ah ee jeexjeexa, adkaanta Shore, iyo waxqabadka kulaylka cadaadiska.
Ku darida isku dhafka ah ee zinc oxide ee firfircoon, TC10 iyo TC90 si aad ah u dheer, xajmiga ugu yar ee ML, xajmiga ugu sarreeya ee Mn iyo farqiga u dhexeeya labada MH ee korodhka ML, taas oo muujinaysa in badbaadada farsamaynta, xawaaraha vulcanization uu hoos u dhaco, heerka isku-tallaabta kor u kaca, xooggiisa jilicsanaanta, 100% xoojinta dhererka go'an, 300% ℃ × 24h da'da, sifooyinka muunada ee heerka haynta si weyn Kadib gabowgu 100 ℃ × 24h, heerka haynta ee waxqabadka muunada si weyn ayaa loo hagaajiyay. Marka zinc oxide firfircoon loo isticmaalo qadar yar, TC90 - TS1 waa soo gaabinaysaa, ML iyo isbeddelada MH ma aha mid muhiim ah, iyo sifooyinka farsamada ee isbeddellada caagga ah ee vulcanized ma muuqdaan; Qaybaha 2.5 ee qiyaasta, caabbinta gabowga ee caagga vulcanized ayaa hoos u dhacaya, markaa qadarka waxaa lagu dhimi karaa qaybaha 3 ee qiyaasta si loo isticmaalo.
Faa'iidooyinka zinc oxide
Iyada oo loo marayo xogta tijaabada ah ee alaabta kor ku xusan, waxaa la baran karaa in zinc oxide firfircoon si weyn loogu isticmaali karo alaabooyin kala duwan oo caag ah.
(1) Waxay leedahay kala firir wanaagsan oo ku jirta walxaha caagga ah, iyo sifooyinka jirka iyo farsamada ayaa la hagaajiyaa;
(2) In habka vulcanization. Waqtiga coking ee walxaha caaggu wuu sii dheeraadaa, badbaadada vulcanization waa la wanaajiyay, iyo waxtarka vulcanization waa la wanaajiyey;
(3) Iyada oo ay ugu wacan tahay aagga dusha sare ee gaarka ah iyo cabbirka qayb yar ee zinc oxide firfircoon , waxaa loo isticmaali karaa qadar yar oo lagu daro walxaha caagga ah qaarkood.
