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I-PEG 400 ne-PEG 4000 zingezomndeni ofanayo we-polyethylene glycol, nokho zibukeka zihluke kakhulu endaweni yokugcina izimpahla. I-PEG 400 ivamise ukuphathwa njengoketshezi, kuyilapho i-PEG 4000 ivame ukunikezwa njengama-flakes, ama-granules noma impushana.
Isizathu sitholakala esisindweni samangqamuzana.I-I-Polyethylene Glycol 4000inesilinganiso sesisindo samangqamuzana esicishe sibe ngu-4,000 futhi siqinile esimhlophe endaweni yezinga lokushisa. Ngokuya ngokucaciswa komkhiqizo, ngokuvamile incibilika phakathi kwebanga elingama-53–62°C.
Le nhlanganisela yefomu eliqinile, ukunyibilika kwamanzi kanye nokuguquguquka okuphansi kunikeza i-PEG 4000 izindima ezimbalwa ezisebenzayo ekukhiqizeni.
Ukubamba izimpushana ze-ceramic ndawonye
Izimpushana ze-ceramic ezinhle azisigcini isimo sazo ngokwemvelo. Ngaphambi kokucindezela noma ukwakha, kungase kudingeke i-binder ukuze kugcinwe izinhlayiya ndawonye futhi kuncishiswe umonakalo ngesikhathi sokuphatha.
I-PEG 4000 ingenza le ndima njengesibophezelo esincibilika emanzini noma insiza yokucubungula. Ingangeniswa ngesikhathi sokuxuba okumanzi futhi ihlale ezintweni ngemva kokumisa, isiza umzimba oluhlaza ukugcina amandla anele okudlulisa nokucubungula okuqhubekayo.
Inani elidingekayo lincike ku-powder ceramic, indlela yokwenza kanye namandla aluhlaza afisayo.
Ukusekela ukwakheka kwemikhiqizo yokuhlanza eqinile
Izithasiselo zokuwasha kanye nemikhiqizo yokuwasha izitsha okuzenzakalelayo kuvame ukukhiqizwa njengama-granules, amabhlogo noma amaphilisi. Izimpushana ezixekethile kufanele ziqale zihlanganiswe futhi zigcinwe ngendlela ezinzile.
Kulezi zinhlelo, i-PEG 4000 ingasiza ukubopha izithako eziyimpuphu ngesikhathi sokuhlanganisa noma ukuhlanganisa. Lapho umkhiqizo oqediwe uhlangana namanzi, i-polyethylene glycol ingancibilika kanye nezinye izakhi ezincibilikayo. Lokhu kwenza kube wusizo uma kokubili amandla omkhiqizo oqinile kanye nokuncibilika kwamanzi kudingeka.
Ukunciphisa ukunamathela ngesikhathi sokucubungula irabha
Izinto zenjoloba ne-elastomer zinganamathela kumishini noma endaweni yokubunjwa ngesikhathi sokucubungula. I-PEG 4000 ingafakwa ezinhlelweni ezithile zokuthambisa noma zokukhulula isikhunta ukuze kusizwe ukuphatha lo othintana naye.
Akuyona into eyinhloko yerabha eluhlaza. Indima yayo ukusiza ngokukhulula, ukunyakaza noma ukuphatha ngesikhathi sokukhiqiza. Ngakho-ke ukufaneleka kanye nesilinganiso kufanele kuhlolwe ngokumelene nohlobo lwenjoloba, izinga lokushisa lokucubungula kanye nezimo zemishini.Isebenza njenge-polyether impahla eluhlaza ku-resin synthesisPEG 4000 iqukethe amaqembu e-hydroxyl kuzo zombili iziphetho zeketango layo lamangqamuzana, elivumela ukuthi libambe iqhaza ekuphenduleni okwengeziwe kwamakhemikhali. Ngakho-ke ingasetshenziswa njengendawo ephakathi ekukhiqizeni ama-polyester, ama-polyurethanes nezinye izinhlelo ze-resin.
Kulokhu, i-PEG 4000 yenza okungaphezu kokuhlinzeka ngosekelo lokucubungula lwesikhashana. Iketango layo le-polyether lingase libe yingxenye yesakhiwo se-polymer yokugcina, ngomphumela onqunywa ukwakheka kwe-resin nezimo zokusabela.
Yini okufanele abathengi bayihlole?
Imikhiqizo ye-PEG 4000 ingase yehluke ngobubanzi besisindo samangqamuzana, inani le-hydroxyl, umswakama, isimo somzimba kanye nokupakishwa. Impushana ingaba lula ekuxubeni okufanayo nezinye izinto ezomile, kuyilapho ama-flakes angase afanele izinqubo ezisebenzisa ukuhlanganisa okushisayo noma okuncibilikisiwe.
Abathengi kufanele futhi baqinisekise ukuthi impahla ihloselwe izimboni noma okunye ukusetshenziswa okukhethekile. Indlela yokuhlakaza, izinga lokushisa elingeziwe kanye nokungaguquguquki kwenqwaba kufanele kubuyekezwe kuqhathaniswa nenqubo yokukhiqiza yangempela.
Izimpahla ze-DotachemI-I-Polyethylene Glycol kumabanga ahlukene esisindo samangqamuzana. Xhumana nathingokucaciswa kwe-PEG 4000, imininingwane yokupakisha kanye nolwazi lokunikezela.
