Budada hydroxide ee aluminiumka ah ee Ultrafine waxay leedahay shaqooyin badan sida daawada dabka, baabi'inta qiiqa iyo buuxinta, waxayna soo saari kartaa saameyn isku-dhafan oo ka hortagta dabka iyadoo la adeegsanayo fosfooraska iyo walxaha kale. Waa daawo muhiim u ah ilaalinta deegaanka ee warshadaha elektaroonigga ah, kiimikada, fiilada, balaastikada, caagga iyo kuwa kale.
Aluminium hydroxide waa nooc buuxin ah oo dab-damis ah, si loo gaaro saameyn ka wanaagsan oo dab-damis ah, xaddiga buuxinta wuxuu u baahan yahay inuu ka badan yahay 40% (wadarta guud), qaar xitaa ilaa 60%, laakiin xaddiga buuxinta sare ma aha oo kaliya inuu si xun u saameeyo sifooyinka farsamada ee alaabta, laakiin sidoo kale wuxuu ka dhigayaa wax-qabadka fidinta iyo farsamaynta mid ka sii daran.
Sidaa darteed, si loo sameeyo budada hydroxide aluminium ee aadka u fiican waxaa si ballaaran loogu isticmaali karaa walxaha ka hortagga dabka sida polyolefin, waa inay noqotaa wax ka beddelka dusha sare ee budada hydroxide aluminium, si loo hagaajiyo sifooyinka jirka iyo kiimikada dusha sare, loo xoojiyo budada hydroxide aluminium ee aadka u fiican iyo substrate, iswaafajinta polymer-ka ama resin-ka organic-ga iyo kala-soocidda substrate-ka organic-ga, si loo hagaajiyo xoogga farsamada ee maaddada iyo waxqabadka dhammaystiran.
1. Wax ka beddelka dusha sare ee si caadi ah loogu isticmaalo hydroxide aluminium ah oo ultrafine ah
(1) wakiilka isku xidhka silane
Waxaa jira in ka badan boqol nooc oo ah wakiilada isku xidhka silane, kuwaas oo ka mid ah wakiilka isku xidhka silane ee kooxda hal-lakabka ah uu yahay kan ugu xasilloon. Xasilloonida wakiilka isku xidhka silane ee kooxda-shaqada leh waxay u dhaxaysaa birta iyo birta. Marka laga soo tago kor u qaadista sifooyinka farsamada ee alaabta, wakiilka isku xidhka silane ee kooxda-shaqada leh wuxuu sidoo kale hagaajin karaa sifooyinka korontada iyo iska caabbinta qoyaanka ee alaabta.
(2) wakiilka isku xidhka zirconium
Wakiilka isku xidhka fasalka zirconium oo ka kooban zirconium aluminate cufnaanta molecular ee hoose ee polymer aan organic ahayn ee silsiladda ugu weyn ee molecule-ka oo ku saabsan isku-dhafka laba nooc oo ah ligand organic subunits, dentate oo leh wakiil isku xidhka xasillooni hydroxyl wanaagsan, dentate kale oo ah wakiilka isku xidhka falcelinta organic wanaagsan, budada aluminium hydroxide superfine aluminium hydroxide waxay leedahay saameyn wanaagsan oo wax laga beddelay.
(3) asiidhyada dufanka badan iyo milixdooda
Qaab-dhismeedka molecular-ka ee asiidhyada dufanka badan iyo cusbooyinkooda, hal dhinac waa koox alkyl silsilad dheer leh, dhinaca kalena waa koox carboxyl ah iyo milixdeeda birta ah oo la falgeli karta kooxaha shaqada dusha sare ee aluminium hydroxide. Daaweynta budada ultrafine aluminium hydroxide oo leh asiidh dufan badan iyo milixdeeda waxay hagaajin kartaa xiriirka ka dhexeeya budada ultrafine aluminium hydroxide iyo molecule polymer, waxayna hagaajin kartaa sifooyinka farsamada iyo farsamaynta ee badeecada.
(4) asiidhyada aan buuxin ee dabiiciga ah
Asiidhyada dabiiciga ah ee aan dheregsanayn ee caadiga ah waa: asiidhka acrylic, asiidhka methacrylic, asiidhka cinnamic, iwm. Guud ahaan, asiidhka oo xoog badan, ayaa si fudud loo samayn karaa isku xidhka ionic, markaa dooro wax badan: asiidhka acrylic iyo asiidhka methacrylic.
Noocyo kala duwan oo asiidhyo dabiici ah ayaa keligood la isticmaali karaa, sidoo kale waxaa loo isticmaali karaa isku dhafan, daaweynta ion-yada birta alkali oo ka kooban budada hydroxide aluminium ultrafine, saameyntu way ka fiican tahay.
(5) organosilicon
Macromolecule organosilicon, oo sidoo kale loo yaqaan saliidda silicon, waa nooc ka mid ah polymer kaas oo ku xiran kooxda dabiiciga ah ee atomka silicon iyadoo la adeegsanayo silsiladda isku xidhka oksijiinta ee silicon (si-o-si) sida qalfoofka. Caadiyan waxaa loo isticmaalaa polymethylsiloxane-ka ku jira hydrogen, polydimethylsiloxane-ka la joojiyay hydroxyl, iwm.
2. Habka wax ka beddelka dusha sare ee hydroxide aluminium aad u fiican
Waqtigan xaadirka ah, hababka wax ka beddelka dusha sare ee budada hydroxide aluminium ee ultrafine ayaa inta badan qalalan oo qoyan.
(1) wax ka beddelka qalalan
Habkan, budada hydroxide aluminium ee ultrafine ee wax laga beddelay ayaa la kululeeyaa heerkul gaar ah, wax-ka-beddelkana si tartiib tartiib ah ayaa loogu shubaa budada hydroxide aluminium ee xawaaraha sare leh, badeecadana waa la joojiyaa si loogu xidho ka dib falcelinta waqti cayiman.
Faa'iidooyinka wax-ka-beddelka qalalan waa shuruudaha qalabka oo hooseeya iyo hawlgal fudud. Khasaaraha ayaa ah in xoogga shaqada ee shaqaaluhu uu weyn yahay, heerka dahaarka budada aluminium hydroxide uu hooseeyo.
(2) wax ka beddelka qoyan
Wax-ka-beddelka qoyan wuxuu ku jiraa habka wax-soo-saarka budada hydroxide aluminium ee ultrafine, isku-darka dareeraha hydroxide aluminium ka dib shaandhaynta, dhaqidda, garaacista keegga shaandhaynta, heerkul gaar ah oo garaacista dareeraha ka dib marka lagu daro wax-ka-beddele, walaaqidda muddo ah, shaandhaynta, qalajinta iyo garaacista baakadaha.
Faa'iidooyinka wax-ka-beddelka qoyan waa xoog shaqo oo hooseeya, wasakhowga boodhka la'aan, hufnaanta wax-soo-saarka sare, heerka dahaarka budada aluminium hydroxide oo sarreeya, 20-30%, saameynta wax-ka-beddelka waa mid sare oo deggan. Marka la barbardhigo wax-ka-beddelka qalalan, wax-ka-beddelka qoyan wuxuu leeyahay hab-socod dheer iyo shuruudo sare oo ku saabsan qalabka. Iyada oo ay ugu wacan tahay faa'iidooyinka wax-ka-beddelka qoyan, waxay si tartiib tartiib ah u beddelaysaa habka wax-ka-beddelka qalalan.
3. Habka qiimaynta ee saamaynta wax ka beddelka dusha sare ee hydroxide aluminium ultrafine
(1) tijaabada heerka nuugista saliidda
Heerka nuugista saliidda waxaa inta badan loo isticmaalaa in lagu cabbiro xaddiga saliidda castor ee loo baahan yahay marka xaddi cayiman oo budada Al (OH) 3 ah ay gaarto dhexgalka dheregta, waxaana loo isticmaalaa in lagu qeexo xaddiga resin ee loo baahan yahay marka xaddi cayiman oo budada Al (OH) 3 ah ay gaarto dhexgalka dheregta.
Habka ogaanshaha waa sidan soo socota: budada alumina hydroxide ee superfine waa la miisaamaa muunaddana waa la qalajiyaa qiyaastii 10g, waxaa lagu ridaa weel, saliidda castor-ka waxaa lagu shubaa burette, ka dibna si tartiib ah loogu qaso ul galaas ah si loo sameeyo saliidda castor-ka iyo muunadda si siman loogu dhex geliyo kubbad. Qadarka saliidda castor-ka ee lagu nuugay 100g oo ah hydroxide aluminium ah ayaa la xisaabiyay, taas oo ah, heerka nuugista saliidda ee budada hydroxide aluminium ee ultrafine.
Ka dib marka wax laga beddelo dusha sare ee budada hydroxide ee aluminium, heerka nuugista saliiddu wuu isbeddeli doonaa ilaa xad gaar ah. Haddii budada hydroxide ee aluminiumka ah ee ultrafine lagu beddelo wakiilka isku xidhka silane, heerka nuugista saliiddu wuu yaraan doonaa qiyaastii 10%.
(2) Imtixaanka SEM
Qaab-dhismeedka budada hydroxide aluminium ee ultrafine ka hor iyo ka dib wax ka beddelka waxaa lagu ogaaday mikroskoobka elektarooniga ah. Kala firdhinta budada wax laga beddelay ee ku jirta shaxda ayaa ka fiicnayd tan badeecada aan wax laga beddelin.
(3) Imtixaanka FTIR
Sawirka Fourier infrared spectroscopy (ftir) ayaa loo isticmaalay in lagu falanqeeyo kooxaha dusha sare ee badeecada. Tusaale ahaan, waxa ku jira vinyl - Vi iyo - Si waxaa lagu go'aamin karaa iyadoo la adeegsanayo ir spectra ee budada aluminium hydroxide oo leh wax ka beddelka dusha sare ee methyl vinyl silane.
(4) go'aaminta sifooyinka badeecada
Budada hydroxide aluminium ee ultrafine-ka ah ee wax laga beddelay iyo kuwa aan wax laga beddelin ayaa loo isticmaalay in lagu tijaabiyo tusmooyinka fiilooyinka sida tusmada oksijiinta, xoogga jiidista iyo dhererka marka la nasto. Iyada oo la barbar dhigayo, waxaa la ogaan karaa in sifooyinka dab-damiska iyo farsamooyinka ee alaabada wax laga beddelay la hagaajiyay.
(5) tusmada kicinta
Tusmada dhaqdhaqaaqa waa tusmada lagu qiimeeyo saameynta wax ka beddelka dusha sare iyadoo la cabbirayo boqolkiiba xaddiga aluminium hydroxide ee dul sabeynaya biyaha ilaa wadarta guud ee aluminium hydroxide ka dib wax ka beddelka. Sababtoo ah noocyada kala duwan ee wax ka beddelka dusha sare iyo hababka daaweynta ee kala duwan ee budada hydroxide aluminium ultrafine, qaar ka mid ah budada wax laga beddelay ayaa dul sabeyn doona biyaha dushooda qaarna way quusi doonaan.
Sida sodium stearate, wax-ka-beddelka qoyan ee titanate, wax-ka-beddelka qalalan ee hydrophobic silane ka dib budada hydroxide aluminium ee ultrafine, tusmada dhaqdhaqaaqa waxaa loo isticmaali karaa in lagu qiimeeyo saameynta wax-ka-beddelka; Si kastaba ha ahaatee, silane hydrophilic waxaa wax laga beddelay habka qalalan, budada hydroxide aluminium ee ultrafine-ka ah ee wax laga beddelay habka silane qoyan waxay ku degi doontaa biyaha, sidaa darteed saameynta wax-ka-beddelka laguma qiimeyn karo tusmada dhaqdhaqaaqa, habka qiimeynta saxda ahna wuxuu ahaa spectroscopy-ga infrared.
Waqtiga boostada: Abriil-24-2020