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I-PEG 400 kunye ne-PEG 4000 zezosapho olufanayo lwe-polyethylene glycol, kodwa zikhangeleka zahluke kakhulu kwindawo yokugcina impahla. I-PEG 400 idla ngokuphathwa njengolwelo, ngelixa i-PEG 4000 iqhele ukubonelelwa njengeeflakes, iigranules okanye umgubo.
Isizathu sikubunzima bemolekyuli.Polyethylene Glycol 4000inobunzima bemolekyuli obumalunga nama-4,000 kwaye buqinile obumhlophe kubushushu begumbi. Ngokuxhomekeke kuluhlu lwemveliso, iqhele ukunyibilika phakathi koluhlu olumalunga ne-53–62°C.
Le ndibaniselwano yefom eqinileyo, ukunyibilika kwamanzi kunye nokuguquguquka okuphantsi kunika i-PEG 4000 iindima ezininzi ezibonakalayo kwimveliso.
Ukubamba umgubo weceramic kunye
Iipowder zeceramic ezintle azigcini ngokwemvelo imilo yazo. Ngaphambi kokuba ucinezele okanye wenze, i-binder ingafuneka ukugcina amaqhekeza kunye nokunciphisa umonakalo ngexesha lokuphatha.
I-PEG 4000 inokwenza le ndima njenge-binder enyibilikayo yamanzi okanye i-processing aid. Inokuthi ifakwe ngexesha lokuxuba okumanzi kwaye ihlale kwizinto eziphathekayo emva kokumisa, inceda umzimba oluhlaza ugcine amandla okwaneleyo okudluliselwa kunye nokuqhubela phambili.
Isixa esifunekayo sixhomekeke kwipowder ceramic, indlela yokwenza kunye namandla aluhlaza afunwayo.
Ukuxhasa ukubunjwa kweemveliso eziqinileyo zokucoca
Izongezo zokuhlamba kunye neemveliso zokuhlambela izitya zihlala ziveliswa njengeegranules, iibhloko okanye iipilisi. Iipowder ezikhululekile kufuneka zihlanganiswe kuqala kwaye zigcinwe kwifom ezinzileyo.
Kwezi nkqubo, i-PEG 4000 inokunceda ukubopha izithako ezinomgubo ngexesha le-granulation okanye i-compaction. Xa imveliso egqityiweyo idibana namanzi, i-polyethylene glycol inokunyibilika kunye nezinye izinto ezinyibilikayo. Oku kwenza kube luncedo xa zombini amandla emveliso eqinileyo kunye nokunyibilika kwamanzi kufuneka.
Ukunciphisa ukunamathela ngexesha lokucubungula irabha
Irubha kunye nezixhobo ze-elastomer zinokubambelela kwisixhobo okanye kwindawo yokubumba ngexesha lokucubungula. I-PEG 4000 inokufakwa kwiinkqubo ezithile ze-lubricant okanye ukukhutshwa kokungunda ukunceda ukulawula olu qhagamshelwano.
Ayiyiyo eyona nto iphambili yerabha. Indima yayo kukuncedisa ngokukhulula, ukunyakaza okanye ukuphatha ngexesha lemveliso. Ngoko ke, ukufaneleka kunye ne-dosage kufuneka kuhlolwe ngokuchasene nohlobo lwerabha, ubushushu bokusebenza kunye neemeko zezixhobo.Ukusebenza njenge-polyether ekrwada kwi-resin synthesisPEG 4000 iqulethe amaqela e-hydroxyl kuzo zombini iziphelo zetsheyini ye-molecular, evumela ukuba ithathe inxaxheba ekuphenduleni okuqhubekayo kweekhemikhali. Ngoko ke ingasetyenziselwa njengendawo ephakathi kwimveliso yeepolyester, i-polyurethanes kunye nezinye iinkqubo ze-resin.
Kule meko, i-PEG 4000 yenza okungaphezulu kokubonelela ngenkxaso yokulungiswa kwexeshana. Ikhonkco layo le-polyether linokuba yinxalenye yesakhiwo sokugqibela sepolymer, kunye nesiphumo esibangelwa yi-resin design kunye neemeko zokusabela.
Kufuneka bajonge ntoni abathengi?
Iimveliso ze-PEG 4000 zinokwahluka kuluhlu lwe-molecular-weight, ixabiso le-hydroxyl, ukufuma, ifom yomzimba kunye nokupakishwa. I-powder inokuba lula ukuxubana okufanayo kunye nezinye izinto ezomileyo, ngelixa iiflakes zinokufanelana neenkqubo ezisebenzisa ukongeza okushushu okanye okunyibilikayo.
Abathengi kufuneka kwakhona baqinisekise ukuba imathiriyeli yenzelwe ushishino okanye olunye usetyenziso olukhethekileyo. Indlela yokuchithwa, ubushushu bokongeza kunye nokuhambelana kwebhetshi zonke kufuneka ziqwalaselwe ngokuchasene neyona nkqubo yemveliso.
Izixhobo zeDotachemPolyethylene Glycol kwiindidi ezahlukeneyo zobunzima bemolekyuli. Qhagamshelana nathikwiinkcukacha ze-PEG 4000, iinkcukacha zokupakisha kunye nolwazi lokubonelela.
