Zinc oxide yitirhisiwa ngopfu tani hi vulcanizing active agent eka switirhisiwa swa rhaba, leswinga hatlisisa rivilo ra vulcanization naku antswisa degree ya vulcanization, naswona i xiphemu xa nkoka xa vulcanization system eka ti formulations ta rhaba. Loko ku pimanyisiwa na zinc oxide leyi tolovelekeke, ultrafine active zinc oxide yina vukulu bya ti particle letintsongo, ndzhawu leyikulu yokarhi yale henhla, ntirho wokarhi ehenhla, permeability, ku hangalaka kahle na swin’wana swa physicochemical. Hikokwalaho, ku cinca zinc oxide leyi tolovelekeke eka swivumbeko swa rhaba swinga hunguta mpimo wa yona handle ko khumba swihlawulekisi swa vulcanization swa rhaba na swivumbeko swa physical na mechanical swa rhaba leyi vulcanized.
Swikambelo swa le laboratori .
Loko mpimo wa active zinc oxide wu tlakusiwile kusuka eka 50% kuya eka 90%, nkarhi wa vulcanization induction (T10) na nkarhi wa positive vulcanization (T90) wa rhaba wu tlakukile na mpimo wa active zinc oxide.
Nkarhi wa nkarhi wa vulcanization induction (T10) na nkarhi wa positive vulcanization (T90) wu lehisiwile hi ku tlakuka ka mpimo, naswona swivumbeko swo leha na swa tensile swa rhaba swi tlakukile hi ku tlakuka ka mpimo wa zinc oxide leyi tirhaka , naswona matirhelo ya kahle swinene ya fikeleriwile loko mpimo wu fika eka 70%. Ku tiya ka swilo swa rhaba aswi cinci ngopfu hiku tlakuka ka active zinc oxide dosage.
Ku tiyisisiwa ka ntlawa .
Loko mpimo wa active zinc oxide wuri 70% wa orinc oxide leyi tolovelekeke, swivumbeko swa physical na mechanical swa nchumu wa rhaba swiringanisiwa na swa orinc oxide leyi tolovelekeke. Ku hlawuriwile mpimo, hi ku tirhisa xihlantswi xo tsindziyela, ku endla xikambelo xa ku pimanisa lexikulu xa ku ringanela, mimbuyelo yi kombisiwile eka Tafula ra 3. Mimbuyelo ya xikambelo yi kombisa leswaku mpimo wa zinc oxide leyi tirhaka .
Is 70% wa matimba ya ntolovelo ya zinc oxide rubber tensile ya le henhla ku tlula rhaba ya zinc oxide leyi tolovelekeke, swikombiso leswin’wana hinkwaswo swa matirhelo swi le kusuhi na matirhelo ya ku hisa ka ku hisa ka leswi swa khale ya antswa ku tlula ya le ndzhaku.
Ku hlanganisa .
Ultrafine active zinc oxide ya olova ku haha loko yi hlanganisiwa hikokwalaho ka vukulu bya ti particle letintsongo xikan’we na ntiko wo vevuka. Ku hlanganisiwa na mubaleki swinga teka ndlela yo tlhelela endzhaku ya ndlela yo hlanganisa, zinc oxide yosungula leyi tirhaka eka kamara ro basisa, kutani u hoxa switirhisiwa swin’wana swa ntirho .
Extrusion .
T10 ya active zinc oxide yi lehe ku tlula ya ntolovelo ya zinc oxide, leswi pfunaka eka extrusion ya hose naswona swihunguta xiphiqo xaku hisa hikokwalaho ka ku tlakuka ka mahiselo hinkarhi wa extrusion. Vuhumelerisi lebyi tirhaka byi kombisile leswaku xivumbeko xa rhaba hiku tirhisa active zinc oxide, matirhelo ya maendlelo ya extrusion i ya kahle. Extrusion .
Ku lawula mahiselo ya muchini: Ku hisa ka nhloko 70 ± 5 L , Ku hisa ka miri 50 ± 5 L , Ku hisa ka xikurufu 40 ± 5 L.
Vulcanization .
Ku tirhisiwa ka active zinc oxide T90 na ordinary zinc oxide swile kusuhi naku ringana na mahiselo ya vulcanization naswona nkarhi wunga tirhisiwa eka endlelo rosungula.
Hakelo
Ntsengo wa active zinc oxide wule henhla kutlula zinc oxide leyi tolovelekeke, kambe mpimo wunga hungutiwa, kuya hi xikambelo, formula ya ti hose yinga tirhisiwa 70% wa mpimo. Ntsengo lowu heleleke wu ta va ehansi.
Mahetelelo
(1) Eka fomula ya hose yinga tirhisiwa 70% wa active zinc oxide ematshan’wini ya orinc oxide leyi tolovelekeke, swivumbeko swa physical na mechanical swa vulcanized rubber hi xisekelo switshama swinga cinci kumbe ku antswisiwa.
(2) Ultrafine active zinc oxide yi tirhisiwa eka hose, endlelo ra ntirho i ra ntolovelo. Hikwalaho ka nkarhi woleha wa T10, matirhelo ya anti-scorch ya kahle, ya pfuneta eka extrusion.
(3) Ku tirhisiwa ka ultrafine active zinc oxide swi nga hunguta ntsengo wa rhaba.
