Zinc oxide wakili ne mai aiki da aka saba amfani dashi wajen sarrafa roba. A cikin samar da roba, sharar gida da sake yin amfani da su na iya sakin mahadi na zinc, haifar da lahani ga muhalli, don haka ya kamata a rage adadin zinc oxide a cikin dabarar roba. aiki tutiya oxide yana da karamin barbashi size, babban surface area, high vulcanization aiki, idan aka kwatanta da talakawa tutiya oxide, da adadin aiki tutiya oxide rage, don haka rage cutar da zinc ga muhalli, nuna muhalli da tattalin arziki amfanin.
Ana samar da sinadarin zinc oxide mai aiki ta amfani da tsarin jika, haɗin hazo da gasassu, don samar da zinc oxide mai aiki da zinc oxide na gaskiya, sabanin tsarin calcination na gargajiya na kai tsaye da sauran masu samarwa ke amfani da su. Tsarin rigar yana da matsayi mai girma na daidaito a cikin inganci, tsarin kuma yana haifar da babban yanki na musamman (40m2 / g) da kuma rarraba girman girman nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i 40m2 / g).
Tsarin samar da tsarin jika shine kamar haka: zinc ingot da sulfuric acid dauki don samar da zinc sulfate, sa'an nan kuma halayensa tare da sodium carbonate don samar da zinc carbonate a matsayin albarkatun kasa don zinc oxide. Tare da zinc carbonate a matsayin albarkatun kasa, ana samar da zinc oxide ta hanyar wankewa, bushewa, calcining da murkushewa.
Matsakaicin girman ƙwayar ƙwayar zinc oxide mai aiki shine 50nm, yanki na musamman yana da girma, game da 40m2 / g, kuma lu'ulu'u sune saƙar zuma, sako-sako da porous, don haka watsawa yana da kyau; saurin yaduwa ya fi sauri fiye da zinc oxide na yau da kullun, rarraba ya zama iri ɗaya, a cikin yanayin haɓaka haɓakar haɓakar haɓakar haɓakar haɓakar haɓakawa, ana iya amsawa gabaɗaya; ƙananan ƙarfe Pb2 +, Cu2 +, Cd2 +, Mn2 +, Fe2 + abun ciki yana da ƙasa sosai, daidai da bukatun kare muhalli.
Amfanin Samfur
Zinc oxide a cikin masana'antar roba galibi ana amfani da shi azaman wakili na vulcanization na roba (wakilin gaggawa), aikin wanda shine haɓaka kunna haɓakar vulcanization accelerator da haɓaka tasirin vulcanization na roba. Hanyar amsawa ita ce: zinc oxide da haɓaka sinadarai don samar da gishirin tutiya mai hanzari; gishiri zinc gishiri da kwayoyin polysulfide don samar da gishirin zinc polysulfide; polysulfide tutiya gishiri da roba macromolecule dauki don kammala karshe sinadaran crosslinking, don inganta da vulcanization na roba, kunnawa da kuma ƙarfafa rawar da anti-tsufa, don cimma kwanciyar hankali, aiki aminci, babban mataki na raguwa a cikin m kudi, da kuma inganta roba kayayyakin, hawaye juriya, abrasion juriya, da kuma ƙara da gyarawa da vulcanization na rubbercan rubber. Kuma inganta vulcanized roba stretch danniya, tensile ƙarfi da elongation, rage matsawa m nakasawa, da dai sauransu.
1. Active zinc oxide a cikin Semi-karfe radial taya na ciki aikace-aikace
A daidai wannan adadin, yin amfani da aiki na zinc oxide 2 # dabara roba curing gudun fiye da amfani da talakawa zinc oxide 1 # dabara roba ya karu da kusan sau 1; 3 # dabarar sinadarin zinc oxide na aiki shine kawai 1 # dabarar sinadari na yau da kullun na zinc oxide na kashi 80%, amma 3 # dabarar maganin roba har yanzu yana da sauri fiye da tsarin rubber l. 3 formulations na roba coking Properties, da Menni danko ba yawa bambanci.
Gwajin dabara vulcanized roba taurin, akai tensile danniya, tensile ƙarfi da kuma hawaye ƙarfi fiye da samar da dabara vulcanized roba inganta, gajiya juriya da flexural yi matakin ne kwatankwacin, zafi da iska tsufa yi ya ragu kadan.
aiki tutiya oxide maimakon talakawa tutiya oxide amfani da Semi-karfe radial taya ciki ply roba, curing roba jiki Properties da kuma yin amfani da talakawa tutiya oxide curing roba matakin ne kwatankwacin cewa na roba, roba vulcanization gudun ne accelerated, wanda shi ne conducive don rage vulcanization lokaci. Yin amfani da zinc oxide mai aiki zai iya rage adadin zinc oxide, mafi dacewa da bukatun kare muhalli.
2. Aikace-aikacen zinc oxide mai aiki a cikin radial tire tread roba
Tare da karuwa a cikin adadin zinc oxide mai aiki, TC10 da TC90 gaba ɗaya yanayin girma. ML da MH ba su canza sosai ba. Wannan yana nufin cewa za a iya amfani da zinc oxide mai aiki a cikin adadin da aka rage.
Ƙarfin ƙarfi, 100% elongation, 300% elongation da ƙarfin hawaye na roba bai canza ba tare da karuwa a cikin adadin zinc oxide mai aiki. Lokacin da adadin ya wuce sassa 5, ƙarfin hawaye na roba mai ɓarna yana raguwa inst ead, wanda ke haifar da karuwa mai yawa na giciye. Bayan tsufa a 100 ℃ × 24h, yawan riƙewar aikin roba fili tare da sassan 3 na zinc oxide mai aiki shine mafi kyawun, kuma tare da sassan 2.5 na sashi shine mafi muni. Dalili na iya zama adadin sassan 2.5, tsarin raga na roba mara kyau ba cikakke ba ne, wanda kuma yana nunawa a cikin elongation iri ɗaya a hawaye, nakasar dindindin a hawaye, taurin Shore, da kuma aikin samar da zafi.
Bugu da kari na aiki tutiya oxide roba gauraya, TC10 da TC90 muhimmanci ya fi tsayi, m karfin juyi ML, matsakaicin karfin juyi Mn da bambanci tsakanin biyu MH a ML karuwa, nuna cewa ta aiki aminci, vulcanization gudun a hankali, da mataki na giciye-linking ya karu, ta tensile ƙarfi, 100% gyarawa elongation, 300% da tef da aka gyara, 300% inganta ƙarfi elongation. ℃ × 24h tsufa, samfuran samfurori na ƙimar riƙewa sosai Bayan tsufa a 100 ℃ × 24h, ƙimar riƙewar aikin samfurin yana inganta sosai. Lokacin da aka yi amfani da zinc oxide mai aiki a cikin raguwar adadin, TC90 - TS1 ya rage, ML da MH canje-canje ba su da mahimmanci, kuma kayan aikin injiniya na canje-canje na rubber mai lalacewa ba a bayyane ba; 2.5 sassa na sashi, juriya na tsufa na roba vulcanized ya ragu, don haka za a iya rage adadin zuwa sassa 3 na sashi don amfani.
Amfanin zinc oxide
Ta hanyar bayanan gwaji na samfuran da ke sama, ana iya koyan cewa ana iya amfani da zinc oxide mai aiki sosai a cikin samfuran roba daban-daban.
(1) Yana da kyau watsawa a cikin roba abu, da kuma jiki da kuma inji Properties an inganta;
(2) A cikin tsarin vulcanization. Lokacin coking na kayan roba ya zama ya fi tsayi, ana inganta amincin vulcanization, kuma ana inganta ingantaccen vulcanization;
(3) Saboda babban yanki na musamman da ƙananan ƙananan ƙwayar ƙwayar zinc oxide mai aiki , ana iya amfani da shi a cikin ƙananan adadin a cikin ƙari na wasu kayan roba.
