I-Diatom yodaka lokuhombisa izinto zodonga yindalo kunye nokusingqongileyo kwezinto zokuhombisa iindonga zangaphakathi, ezisetyenziselwa ukutshintsha iphepha lodonga kunye nepeyinti ye-latex.Inokwakheka okutyebileyo kwaye yenziwe ngesandla ngabasebenzi.Isenokuba mtyibilizi, ithambile, okanye irhabaxa kwaye yendalo.Udaka lwe-Diatom luthambile kwaye lunemingxuma, kwaye ubume bayo obukhethekileyo "kwi-molecular sieve" bumisela intengiso eyomeleleyo kunye nemisebenzi yokutshintshiselana ngemolekyuli.Asinangcoliseko, sisempilweni, sinobuhlobo nokusingqongileyo, kwaye sisixhobo sohlaza.
Inokuphinda ihlakazweipholimaumguboinika amandla okubopha okufanelekileyo, ukuguquguquka, ukuxhathisa ibala, iipropati ezingenamanzi kunye nezokuphefumla kwi-diatom yodaka lokuhombisa izinto zodonga.Kule mihla, udaka oluninzi lwe-diatom lusetyenziselwa ukuhombisa udonga.Nangona udaka lwe-diatom lubiza kakhulu, lunobuhlobo kakhulu nokusingqongileyo.Ngoko ke, xa ukhethaziphinde zisasazweumgubo, kufuneka ukhethe u-high-amandla, i-powder-friendly friendly redispersible powder, enokunyusa amandla kunye nokuxhatshazwa kwe-sag eludongeni.Kuyimfuneko ukongeza i-polymer powder ehlaziywayo kwi-diatom yodaka, enokuthi iphucule kakhulu amandla okudibanisa kunye nokudibanisa kwezinto.
Izinto ezenza ifilimu yeyona nto iphambili echaphazela iipropathi ezibonakalayo kunye nokusebenza kokusingqongileyo kodaka lwediatom.Isetyenziswe njengefilimu yokwenza ifilimu yodaka lwe-diatom, i-coating ifuna ukugqithiswa komoya ophezulu, amandla okudibanisa, ukuchasana kwamanzi, ukuguquguquka kunye nomxholo ophantsi we-VOC.Xa i-polymer idibana namanzi, iimolekyuli zamanzi zenza i-hydrogen bond kunye ne-O-, -S-, -N-, njl njl kwipolymer, ephucula amandla okufunxa ukufuma.Okukhona i-polarity inkulu yepolymer, kokukhona ukomelela komthamo wamanzi wokufunxa, ngelixa amandla okufunxa ukufuma kweepholima ezingezizo iipolima ziphantse zibe zero.Uhlobo kunye nenani lamaqela e-polar kwitsheyini yemolekyuli imisela umthamo wokufunxa ukufuma;amandla okufunxa ukufuma nawo anxulumene nolwakhiwo lwepolymer.Okukhona ziqhelekile iimolekyuli, kokukhona kuncinci ukufunxa ukufuma;Ubuninzi befilimu buya kuchaphazela amandla okufunxa ukufuma kwengubo.Okungcono ukuqhubeka, ifilimu i-denser, ingaphantsi kokunciphisa ukungena komswakama;kokukhona kuqhubeka kubi, kokukhona ukuqina kwesenzo se-capillary, kokukhona kuluncedo ekungeneni kweemolekyuli zamanzi.
Indimasyei-latex powder enokuchithwa kwakhonakudaka lwediatom:
1. I-latex powder ehlaziywayo yenza ifilimu emva kokuba ihlakazekile kwaye isebenze njenge-agent yokuqinisa njenge-adhesive yesibini;
2. I-colloid ekhuselayo ixutywa yinkqubo yodaka (ayiyi kutshatyalaliswa ngamanzi okanye "i-secondary dispersed" emva kokubunjwa kwefilimu;
3. I-polymer eyenza ifilimu isasazwa kuyo yonke inkqubo njengento yokuqinisa, ngaloo ndlela ikhulisa ukubambisana;i-latex powder enokuchithwa kwakhonayiumgubo wokuncamathelisaeyenziwe kwi-emulsion ekhethekileyo (i-polymer) i-spray-dried .Le powder inokusasazwa ngokukhawuleza ukwenza i-emulsion emva kokudibanisa namanzi, kwaye ineempawu ezifanayo njenge-emulsion yokuqala, oko kukuthi, inokwenza ifilimu emva kokuba amanzi aphuke.Le filimu inokuguquguquka okuphezulu, ukuchasana kwemozulu ephezulu kwaye ichasene neentlobo ezahlukeneyohigh ukunamathela kwi-substrate.
4. Njengezinto ze-organic gelling, i-latex powder ekhethekileyo yodaka lwe-diatom inokuphucula ukudibanisa kwe-diatom yodaka lwezixhobo zokuhlobisa udonga, ukwandisa ukuguquguquka, ukunciphisa ukuqhekeka, kunye nokwandisa ukubambisana.
Ikhethekileyo iphinde yahlakazekalatexumgubo wodaka lwe-diatom kufuneka ube nevumba, uphucule amandla okudibanisa phakathi kodaka lwe-diatom kunye nomgangatho wesiseko, uphucule ukuhambelana kwayo, uphucule ubushushu kunye nokumelana nokufuma, kwaye wenze udaka lwe-diatom lube bhetyebhetye oluthile lokuthintela iimilo ezahlukeneyo.ukuqhekeka, ngelixa kungachaphazeli i-adsorption kunye neempawu zokulawula ukufuma kwe-diatom yodaka.
Ixesha lokuposa: Jan-25-2024