Xalka

Barium sulfate waa walax kiimiko oo aan dabiici ahayn oo muhiim ah oo laga soo saaro macdanta cayriin ee barite. Ma aha oo kaliya inay leedahay waxqabad muuqaal oo wanaagsan iyo xasillooni kiimiko, laakiin sidoo kale waxay leedahay astaamo gaar ah sida mugga, cabbirka kuntum iyo saameynta is-dhexgalka. Sidaa darteed, si weyn ayaa loogu isticmaalaa dahaarka, balaastikada, warqadda, cinjirka, khad iyo midabaynta iyo meelaha kale. Nanometer barium sulfate wuxuu leeyahay faa'iidooyinka bedka dusha sare ee gaarka ah, firfircoonida sare, kala firdhinta wanaagsan, iwm. Waxay muujin kartaa waxqabad aad u wanaagsan marka lagu dabaqo walxaha isku dhafan. HCMilling (Guilin Hongcheng) waa soo-saare xirfadle ahbaritewarshad shiidimashiinnadayada.bariteRullaluistem toosanwarshad Mashiinku wuxuu shiidi karaa budada barite ee 80-3000 mesh. Kuwa soo socdaa waa hordhac ku saabsan meelaha loo isticmaalo nano barium sulfate.

1. Warshadaha balaastikada — ka dib marka la farsameeyo baritewarshad shiidimashiin

Ku darista nano barium sulfate oo ay farsameysay mashiinka shiididda barite una adeegsatay polymer si loo helo agab isku dhafan oo leh xoog iyo adkeysi sare ayaa soo jiidatay dareen badan. Tusaale ahaan, barium sulfate waxaa lagu dari karaa polyethylene (PE), polypropylene (PP), polylactic acid (PLA), polytetrafluoroethylene (PTFE) iyo agab kale. Gaar ahaan, sifooyinka farsamada ee barium sulfate si weyn ayaa loo hagaajiyay ka dib markii wax laga beddelay dusha sare.

Inta badan isku-dhafka polymer-ka, marka la kordhiyo xaddiga wax-ka-beddelka, xoogga iyo adkaanta walxaha isku-dhafka ah ayaa marka hore kordha ka dibna hoos u dhaca. Tani waa sababta oo ah xaddiga xad-dhaafka ah ee wax-ka-beddelka ayaa horseedi doona nuugid jireed oo lakabyo badan leh oo ku taal dusha sare ee nano barium sulfate, taasoo keenta isku-darka daran ee polymer-ka, taasoo saameynaysa sifooyinka farsamada ee walxaha isku-dhafka ah, waxayna adkeyneysaa in la ciyaaro sifooyinka wanaagsan ee buuxinta aan dabiiciga ahayn; Qadar yar oo wax-ka-beddele ayaa kordhin doona cilladaha is-dhexgalka ee u dhexeeya nano barium sulfate iyo polymer-ka, taasoo keenta hoos u dhac ku yimaada sifooyinka farsamada ee isku-dhafka ah.

Marka laga soo tago xaddiga kor ku xusan ee wax ka beddelka dusha sare wuxuu saameyn weyn ku leeyahay sifooyinka farsamada ee isku-dhafka, xaddiga barium sulfate sidoo kale waa arrin muhiim ah. Tani waa sababta oo ah xoogga nano barium sulfate aad ayuu u weyn yahay, kaas oo door ka ciyaari kara qaadista marka lagu daro isku-dhafka, sidaas darteedna soo saaraya saameyn xoojin gaar ah. Si kastaba ha ahaatee, marka maadada nano barium sulfate ay aad u sarreyso (in ka badan 4%), sababtoo ah isku-darka isku-dhafka iyo ku darista walxaha aan dabiiciga ahayn, cilladaha matrix-ku way kordhaan, taas oo ka dhigaysa isku-dhafka mid u nugul jabka, sidaas darteedna ka dhigaysa sifooyinka farsamada ee isku-dhafka mid ka sii daran. Sidaa darteed, qaddarka lagu daro barium sulfate waa inuu ku jiraa sifooyinka farsamada ee ku habboon.

2. Warshadaha dahaarka — ka dib marka la farsameeyobaritewarshad shiidimashiin

Nooc ka mid ah midabka, barium sulfate waxaa si weyn loogu isticmaalaa dahaarka waxayna door muhiim ah ka ciyaartaa hagaajinta dhumucda, iska caabbinta xoqidda, iska caabbinta biyaha, iska caabbinta kulaylka, adkaanta dusha sare iyo iska caabbinta saameynta dahaarka. Intaa waxaa dheer, sababtoo ah nuugista saliidda oo hooseysa iyo awoodda buuxinta oo sareysa, waxaa loo isticmaali karaa dahaarka biyaha ku salaysan, kuwa bilowga ah, dahaarka dhexdhexaadka ah iyo dahaarka saliidda leh si loo yareeyo kharashka dahaarka. Waxay beddeli kartaa 10% ~ 25% titanium dioxide ee dahaarka biyaha ku salaysan. Natiijooyinka waxay muujinayaan in caddaanka la hagaajiyay oo awoodda qarintu aan la dhimin.

Astaamaha superfine barium sulfate ee dahaarka waa: 1) cabbirka walxaha aadka u khafiifka ah iyo qaybinta cabbirka walxaha cidhiidhiga ah; 2) Waa mid hufan marka lagu kala firdhiyo xalka resin; 3) Kala firdhis wanaagsan oo ku jirta walxaha salka dahaarka; 4) Waxaa loo isticmaali karaa sidii wakiil kala firdhiya iyadoo lagu darayo midabka dabiiciga ah; 5) Waxay hagaajin kartaa sifooyinka jireed.

3. Warshadaha Warqadaha — ka dib marka la farsameeyo bariteRullaluistem toosanwarshad mashiin

Barium sulfate waxaa badanaa loo isticmaalaa warshadaha sameynta waraaqaha sababtoo ah xasilloonideeda jireed iyo midda kiimikada oo wanaagsan, adkaanteeda dhexdhexaadka ah, cadaanteeda weyn, iyo nuugista fallaaraha waxyeelada leh.

Tusaale ahaan, warqadda kaarboonku waa wax caadi ah oo lagu barto iyo agabka xafiiska, laakiin dusha sare ee warqadda way fududahay in la beddelo, sidaa darteed barium sulfate waxaa looga baahan yahay inay yeelato qiime nuugis saliid oo sarreeya, taas oo hagaajin karta nuugista khadka warqadda; Cabbirka walxaha waa yar yahay oo isku mid ah, taas oo ka dhigi karta warqadda mid siman oo sababi karta in mashiinka uu yaraado.

4. Warshadaha faybarka kiimikada — ka dib marka la farsameeyo bariteRullaluistem toosanwarshad mashiin

Faybarka Viscose, oo sidoo kale loo yaqaan "cudbi macmal ah", wuxuu la mid yahay fiilada suufka dabiiciga ah ee dabiiciga ah, sida ka hortagga-istaagga, nuugista qoyaanka wanaagsan, midabaynta fudud, iyo habaynta dharka fudud. Faybarka nano barium sulfate wuxuu leeyahay saameyn nano oo wanaagsan. Faybarka isku-darka cellulose-ka ee nano barium sulfate/dib loo soo nooleeyay ee laga sameeyay labada walxo cayriin waa nooc cusub oo fiilooyin isku-dhafan ah, kaas oo ilaalin kara sifooyinka gaarka ah ee qayb kasta. Intaa waxaa dheer, iyada oo loo marayo "isku-dhafka" dhexdooda, waxay kaabi kartaa cilladaha hal walxood waxayna muujin kartaa sifooyinka cusub ee walxaha isku-dhafan.