1. Dhismaha Molecular iyo Aasaaska Colloidal ee Ultrafine Zinc Stearate Emulsions
1.1 Samaynta Kiimikada iyo Tallaabooyinka Surfactant ee Zinc Stearate
(Ultrafine Zinc Stearate Emulsions)
Zinc stearate, kiimiko ahaan lagu qeexay sida zinc bis(octadecanoate) [Zn(C ₁₇ H ₃₅ COO)₂], waa unug organometallic ah oo loo aqoonsaday saabuun bir ah, ay soo saartay jawaabta stearic acid– baruur silsilad dheer ah oo cufan– oo leh zinc oxide ama cusbada zinc.
In ay nooca xooggan, waxay u shaqeysaa sidii dheecaanka hydrophobic iyo wakiilka sii deynta, Si kastaba ha ahaatee marka si sax ah loo sifeeyo emulsion ultrafine ah, Tamarteedu aad bay u korodhaa iyadoo ay ugu wacan tahay kala firdhinta iyo shaqada wejiyada oo kordhay.
Qurubku waxa uu leeyahay dacal, ionic zinc-ka kooban madaxa kooxda iyo 2 dabo alkyl hydrophobic dheer, Bixinta tayada amphiphilic taas oo u oggolaanaysa inay u shaqeyso sidii walax dufan gudaha ah, biyo celin, iyo wax ka beddelka aagga dusha ee habab walxo kala duwan.
In xalal dareere ah, zinc stearate ma milaan si kastaba ha ahaatee waxay abuurtaa kala firidhsan kolloidal sugan halkaas oo walxaha submicron ay dejiyaan surfactants ama kala firdhiyo polymeric oo ka soo horjeeda isu imaatinka.
The “ultrafine” qeexiddu waxay sharraxaysaa cabbirrada dhibcaha ama jajabka sida caadiga ah hoos ku taxan 200 nanometer, inta badan waxay ku kala duwan yihiin 50– 150 nm, kaas oo si weyn kor ugu qaadaya aagga tafaasiisha iyo dareenka heerka faafitaanka.
Kala firdhintan nanoscale waxay muhiim u tahay gaaritaanka qaybinta isku midka ah ee maaddooyinka qallafsan sida dhalaalka polymer, lakabyo, iyo nidaamyada sibidhka, halkaas oo macroscopic agglomerates ay hubaal khatar gelinayso waxtarka.
1.2 Samaynta Xalka iyo Nidaamyada Xasilinta
Diyaarinta ultrafine zinc stearate emulsions waxay ku lug leedahay xeeladaha kala firdhinta tamarta sare sida isku-dhafka cadaadiska sare., ultrasonication, ama microfluidization, kaas oo si toos ah u jebiya qaybo aan fiicneyn oo nanoscale magacyo domain ah gudaha weji biyo leh oo joogto ah.
Si loo joojiyo isbahaysiga iyo bislaanshaha Ostwald– hababka qallafsan colloid– surfactants nonionic ama anionic (tusaale., khamriga ethoxylated, cusbo dodecyl sulfate) waxaa loo shaqeeyaa si loo yareeyo xiisadda wejiyada dhexdooda iyo in la siiyo korantada ama xasilinta steric.
Doorashada emulsifier waa muhiim: waa in ay la shaqeyso goobta codsiga loogu talagalay, ka fogaanshaha qaska hababka hoose sida bogsashada polymer ama goob la taaban karo.
Intaa waxaa dheer, Isku-dheellitiriyeyaasha ama kiciyayaasha ayaa laga yaabaa in la soo bandhigo si loo hagaajiyo dheelitirka hydrophilic-lipophilic (HLB) ee nidaamka, hubinta amniga kolloidalka ee waara ee pH kala duwan, heerkulka, iyo dhibaatooyinka adag ee ionic.
Emulsion-ka ka dhashay caadi ahaan waa caano cad, viscosity hoose, oo si ku habboon loogu qasi karo qaabab biyo ku salaysan, awood u yeelashada is dhexgalka siman ee saxda ah ee khadadka wax soo saarka ganacsiga iyada oo aan qalab loo habeynin.
( Ultrafine Zinc Stearate Emulsions)
Xalalka ultrafine ee sida saxda ah loo sameeyay waxay sii taagnaan karaan bilo, iska caabinta wejiga kala goynta, sedementation, ama gelation, taas oo muhiim u ah hufnaanta joogtada ah ee wax soo saarka ballaaran.
2. Xakamaynta Tiknoolajiyada iyo Xakamaynta Cabbirka Yar
2.1 Tamarta Tamarta Saraysa iyo Xeeladaha Nanoemulsification
Xaqiijinta iyo ilaalinta cabbirka walxaha ultrafine waxay u baahan tahay in si sax ah loo xakameeyo gelinta awoodda iyo qeexida nidaamka inta lagu jiro emulsification.
Homogenizer-yada cadaadiska sarreeya waxay ku shaqeeyaan walaac ka sarreeya 1000 baar, ku qasbida pre-emulsion-ka iyada oo loo marayo meelo caato ah oo xiirid daran, cavitation, iyo qaybo qaska ah oo isla toos ah u gelaya array nanometer.
Soo-saareyaasha Ultrasonic waxay soo saaraan cavitation acoustic ee aaladda dareeraha ah, soo saarida mowjado shoog maxalli ah kuwaas oo wada xumaaday isku-darka oo xayeysiiya wareegga dhibicda isku midka ah.
Dareeraha yar yar, horumar cusub oo dheeraad ah, Wuxuu isticmaalaa joomatari-gaaban si uu u horumariyo meelaha dhogorta leh ee joogtada ah, taas oo suurtogal ka dhigaysa dhimista cabbirka yar ee dib loo soo saari karo iyada oo la adeegsanayo tusmooyinka kala duwanaanshaha cidhiidhiga ah (PDI < 0.2).
Tignoolajiyadaasi maaha oo kaliya cabbirka walxaha hoose laakiin waxay sidoo kale kor u qaadaan crystallinity iyo lebbiska dusha sare ee walxaha stearate zinc., kaas oo saameeya habdhaqankooda dhalaalida iyo isdhexgalka alaabta martida loo yahay.
Tallaabooyinka habaynta ka dib sida nadiifinta ayaa laga yaabaa in la isticmaalo si loo baabi'iyo nooc kasta oo hadhaaga qashin-qubka, samaynta shay gaar ah isku mid ah iyo ka fogaanshaha dhibaatooyinka codsiyada jilicsan sida daboolka khafiifka ah ama qaabeynta duritaanka.
2.2 Tilmaamaha iyo Halbeegyada Hubinta Tayada
Waxtarka ultrafine zinc stearate emulsions wuxuu si toos ah ugu xidhan yahay dhismayaashooda jireed iyo kuwa kolloidhka ah., baahida loo qabo sifo gorfayn adag.
Kala firdhinta iftiinka firfircoon (DLS) waxaa si joogto ah loo isticmaalaa in lagu cabbiro dhexroorka hydrodynamic iyo qaybinta cabbirka, halka falanqaynta awoodda zeta ay falanqeyso xasilloonida kolloidalka– qiimayaal ka baxsan ± 30 mV guud ahaan waxay muujisaa xasilinta korantada ee wanaagsan.
Gudbinta mikroskoobyada elektarooniga ah (TEM) ama microscopy cadaadiska atomigga (AFM) waxay ku siinaysaa muuqaal toos ah oo ah qaab-dhismeedka jajabka iyo tayada faafinta.
Farsamooyinka qiimaynta kulaylka sida calorimetry iskaanka kala duwan (DSC) go'aami qodobka dhalaalinaya (~ 120– 130 ° C) iyo xisaabaadka sii xumaanaya kulaylka, kuwaas oo muhiim u ah codsiyada ku lug leh habaynta heerkulka sare.
Intaa waxaa dheer, Tijaabada amniga ee dhibaatooyinka sii kordhaya (heerkulka sare, wareegyada dhalaalida) dammaanad qaadaya nolosha shelf iyo adkaanta inta lagu jiro gaadiidka iyo goobta kaydinta.
Alaab-qeybiyeyaashu waxay sidoo kale ku baadhaan waxtarka waxtarka leh ee imtixaannada gaarka ah ee codsiga, sida cabbirka xagal simbiriirixidda ee saliidda, xagal xidhiidhka biyaha ee hydrophobicity, ama isku midnimada faafinta ee isku-dhafka polymer.
3. Waajibaadka waxtarka leh iyo Aaladaha waxtarka leh ee Qalabka Warshadaha
3.1 Sifeynta Gudaha iyo Dibadda ee Qabashada Polymer-ka
In caagadaha iyo wax soo saarka caag ah, ultrafine zinc stearate emulsions waxay u dhaqmaan sida saliidaha gudaha iyo dibadda aad u hufan.
Marka lagu daro polymer dhalaalaysa (tusaale., PVC, polyolefins, polystyrene), nanoparticles waxay u guuraan is-dhexyaal, yaraynta viscosity dhalaalka iyo khilaafka u dhexeeya silsiladaha polymer iyo qalabka wax ka qabashada.
Tani waxay yaraynaysaa isticmaalka tamarta inta lagu jiro extrusion iyo qaabeynta toogashada, waxay yaraynaysaa Dhimashada, waxayna xoojisaa dhamaystirka dusha sare ee qaybaha la qaabeeyey.
Sababtoo ah cabbirkooda oo yar, Qaybaha ultrafine waxay u qaybiyaan si ka siman marka loo eego budada zinc stearate, ka ilaalinta aagagga dufanka leh ee deegaanka ee dhaawici kara guryaha farsamada.
Waxay sidoo kale u shaqeeyaan sidii wakiillo siideyn dibadda ah, abuurista khafiif ah, filim aan dheg lahayn oo ku yaal caaryada iyo caariyaysyada oogooyinka ka caawiya qayb ka saarista iyada oo aan la ururin kaydka.
Awooddan labanlaabantay waxay kor u qaadaysaa waxtarka wax soo saarka iyo tayada shayga ee jawiga wax soo saarka ee xawaaraha sare leh.
3.2 Biyo Celinta, Anti-Caking, iyo Natiijooyinka Beddelka Goobta Dusha
Saliid hore, xalalkani waxay siinayaan hydrophobicity budada, dhammayn, iyo qalabka dhismaha.
Marka sibidh la saaro, midabada, ama budada dawooyinka, Stearate zinc waxay abuurtaa nano-dahaar ka saara qoyaanka, ka hortagga caking iyo kor u qaadida socodka inta lagu jiro kaydinta iyo maaraynta.
Dhisidda daboolka iyo wax-soo-saarka, Isku darka emulsion-ku wuxuu hagaajiyaa caabbinta biyaha, hoos u dhigista nuugista biyaha iyo hagaajinta adkeysigeeda marka loo eego cimilada iyo waxyeelada dhalaalaysa.
Nidaamku wuxuu ku lug leeyahay meelaynta walxaha stearate at interfaces, oo leh dabo hydrophobic ah oo soo bandhigay goobta, soo saarida dusha tamar yar oo u taagan qoynta.
Intaa waxaa dheer, ee alaabta isku dhafan, zinc stearate waxay bedeli kartaa isgaadhsiinta filler-matrix, hagaajinta kala firdhisanaanta maaddooyinka aan noolaha ahayn sida kaalshiyam carbonate ama talc ee matries polymer.
Waafaqsanaanta wejigan waxay yaraynaysaa jumlada waxayna hagaajisaa waxtarka farsamada, gaar ahaan aakhiro adkeysi iyo dheerayn nasashada.
4. Codsiga Domains iyo Xudduudaha Farsamo ee Soo baxaya
4.1 Qalabka Dhismaha iyo Qalabka Sibidhka ku salaysan
Suuqa dhismaha, Xalalka ultrafine zinc stearate ayaa si tartiib tartiib ah loogu isticmaalaa isku-darka hydrophobic ee shubka ah, hoobiye, iyo malaastaan.
Waxay yareeyaan nuugista biyaha xididdada iyaga oo aan khatar gelinayn xoogga cadaadiska, sidaas darteed hagaajinta iska caabbinta soo galitaanka chloride, weerar sulfate, iyo miridhku kaarboon-ku keeno ee birta kor u qaada.
Si ka duwan isku darka dhaqameed ee laga yaabo inay saameeyaan samaynta wakhtiga ama hawo qaadashada, Xalalka zinc stearate waa kiimiko ahaan aan firfircoonayn ee goobaha alkalineka mana farageliyaan fuuq-celinta sibidhka.
Kala firdhintooda nanoscale waxay dammaanad qaadaysaa nabadgelyo isku mid ah dhammaan shaxanka, xitaa qiyaaso la dhimay (sida caadiga ah 0.5– 2% miisaanka shubka).
Tani waxay ka dhigeysaa kuwa ugu fiican mashaariicda kaabayaasha ee xeebaha badda ama qoyaanka sare halkaasoo adagaanta waarta ay muhiim u tahay.
4.2 Wax-soo-saar horumarsan, Waxyaabaha la isku qurxiyo, iyo Nanocomposites
In wax soo saarka cusub, xalalkan waxaa loo isticmaalaa budada daabacaadda 3D si loo hagaajiyo wareegga loona yareeyo heerka qoyaanka dareenka.
In alaabta la isku qurxiyo iyo daawaynta shakhsi ahaaneed, Waxay u shaqeeyaan sidii wax-ka-beddelayaasha muuqaalka iyo wakiilada biyaha-ilaalinta ee aasaaska, lipsticks, iyo muraayadaha qorraxda, bixinta dareen aan dufan lahayn iyo faafitaanka kor u kaca.
Codsiyada soo ifbaxaya waxaa ka mid ah isticmaalkooda nidaamyada ololaya, Halka zinc stearate uu u dhaqmo sidii isku-duwaha isagoo kor u qaadaya horumarka char ee matries-ka polymer, iyo meelaha dusha sare ee is-nadiifinta oo isku daraya hydrophobicity iyo hawsha sawir-qaadista.
Daraasadda cilmi-baadhistu waxay sidoo kale sahamisaa isku-darkooda dhammaystirka xariifnimada ah ee ka fal-celisa kicinta deegaanka, sida qoyaanka ama walwalka farsamada.
Marka la soo koobo, Xalalka ultrafine zinc stearate xalalka ayaa muujinaya sida naqshadeynta kolloidal ay u beddesho wax-ku-darka caadiga ah saxda ah badeecad waxtar leh oo waxtar leh..
Iyada oo la yareynayo cabbirka jajabka ee nanoscale oo lagu taageerayo faafinta aqueous, Nidaamyadani waxay helayaan isku midnimo heer sare ah, dareen, iyo waafaqsanaanta dhammaan noocyada kala duwan ee codsiyada ganacsiga.
Sida baahida hufnaan, adkeysi, iyo sii jiritaanku way koraan, Xalalka ultrafine zinc stearate ayaa sii wadi doona inay ciyaaraan waajibaad muhiim ah si ay ugu suurtagasho qalabka iyo hababka jiilka soo socda.
5. Qaybiyaha
RBOSCHCO waa alaab-qeybiye kiimiko ah oo caalami ah oo la aamini karo & soo saaraha leh wax ka badan 12 waayo-aragnimo sannado ah bixinta kiimikooyinka tayada sare leh iyo Nanomaterials. Shirkaddu waxay u dhoofisaa dalal badan, sida USA, Kanada, Yurub, UAE, Koonfur Afrika, Tanzania, Kenya, Masar, Nigeria, Cameroon, Uganda, Turkiga, Mexico, Asarbayjan, Belgium, Qubrus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Kuuriya, Vietnam, Thailand, Malaysia, Indonesia, Australia,Jarmalka, Faransiiska, Talyaaniga, Portugal iwm. Sida hormuudka soo saaraha horumarinta nanotechnology, RBOSCHCO ayaa gacanta ku haysa suuqa. Kooxdayada shaqada xirfadlayaasha ahi waxay bixiyaan xalal kaamil ah si ay u caawiyaan hagaajinta hufnaanta warshadaha kala duwan, qiimo abuur, oo si fudud ula qabsadaan caqabadaha kala duwan. Haddii aad raadinayso zinc stearate, fadlan iimayl u soo dir: [email protected]
Tags: Ultrafine zinc stearate, zinc stearate, zinc stearate emulsion
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