IHydroxyethylcellulose (HEC) yindawo esetyenziswa ngokuqhelekileyo yepolymer enyibilikayo emanzini esetyenziswa kakhulu kwiimveliso zokhathalelo lomntu ezifana nejeli yeshawa kunye nesepha engamanzi. Umsebenzi wayo oyintloko kukusebenza njenge-thickener, stabilizer kunye ne-emulsifier ukuphucula iimpawu zomzimba kunye namava omsebenzisi wemveliso.
(1). Ukusetyenziswa kwe-HEC kwijeli yeshawa
Ijeli yeshawa yimveliso yokhathalelo lomntu esetyenziswa ngokubanzi umsebenzi wayo ophambili kukucoca ulusu. I-HEC idlala indima ephambili kwijeli yeshawa, kwaye izicelo zayo ezithile zezi zilandelayo:
1.1 Ukuqina kwesiphumo
I-HEC inokunyusa ngokufanelekileyo i-viscosity ye-gel yeshawa, inike ukuhambelana kakuhle kunye nolwelo. Oku akuncedi kuphela ekuphuculeni ukuthungwa kwemveliso, kodwa kwakhona kuthintela imveliso ukuba i-stratifying okanye ihlale kwibhotile. Ngokulawula ubungakanani be-HEC eyongeziweyo, i-viscosity ye-gel yokuhlamba ingalungiswa ukuze ihlangabezane neemfuno zabathengi abahlukeneyo.
1.2 Isiphumo sokuzinzisa
Njenge-stabilizer, i-HEC inokuthintela izithako ezisebenzayo kwi-gel yokuhlamba ukuba zihlukane okanye zibeke. Inokwenza umxube ofanayo phakathi kwesigaba samanzi kunye nesigaba seoli, ukuqinisekisa ukuba umkhiqizo uhlala uzinzile ngexesha lokugcinwa kunye nokusetyenziswa. Ubukho be-HEC bubaluleke kakhulu kwiijeli zeshawa eziqulethe ioyile ezibalulekileyo okanye ezinye izithako ezinganyibilikiyo.
1.3 Isiphumo sokuthambisa
I-HEC ineempawu ezintle zokuthambisa kwaye inokwenza ifilimu ecocekileyo kwindawo yesikhumba ukukhusela ukulahleka kwamanzi. Oku kunceda ukugcina ulusu lufumile kwaye kwenza abasebenzisi bazive bekhululekile kwaye befumile emva kokusebenzisa ijeli yeshawa. Xa isetyenziswe ngokudibeneyo nezinye izinto zokuthambisa, i-HEC inokuphucula ngakumbi umphumo wokuthambisa wemveliso.
(2). Ukusetyenziswa kwe-HEC kwisepha engamanzi
Isepha yolwelo yenye imveliso eqhelekileyo yokhathalelo lomntu, ikakhulu esetyenziselwa ukucoca izandla nomzimba. Ukusetyenziswa kwe-HEC kwisepha engamanzi kuyafana naleyo yejeli yeshawari, kodwa ikwaneempawu zayo ezizodwa:
2.1 Ukuphucula ukuthungwa kwegwebu
I-HEC inokuphucula ukuthungwa kwe-foam yesepha engamanzi, iyenze ibe-ethe-ethe kwaye ihlale ixesha elide. Nangona i-HEC ngokwayo ayiyona i-ejenti enegwebu, inokunceda ukugcina ukuzinza kwe-foam ngokunyusa i-viscosity kunye nokuzinza kolwelo. Oku kwenza isepha elulwelo ityebe kugwebu kwaye kulula ukuyipusha xa isetyenziswa.
2.2 Ukulawula ubumanzi
Isepha yolwelo idla ngokupakishwa kwiibhotile zempompo, kwaye ubumanzi yenye yeempawu zayo eziphambili. Isiphumo sokuqina se-HEC sinokunceda ukulungelelanisa ukuguquguquka kwesepha yolwelo, iyenze ingabi bhityi kakhulu okanye ingabi ngqindilili kakhulu xa ikhutshwe, iyenze kube lula kubasebenzisi ukuyisebenzisa. Ulwelo olufanelekileyo lunokuthintela inkunkuma egqithisileyo kwaye luqinisekise ukuba idosi esetyenziswayo ixesha ngalinye iphakathi.
2.3 Ukubonelela ngemvakalelo yokuthambisa
Ngethuba lenkqubo yokuhlamba izandla, i-HEC inokubonelela ngengqiqo ethile yokuthambisa kunye nokunciphisa ukukhuhlana kwesikhumba. Oku kubaluleke ngakumbi kubasebenzisi abasoloko besebenzisa isepha engamanzi, njengoko inokunciphisa umngcipheko wolusu olomileyo nolurhabaxa. Ngokukodwa kwiisepha zolwelo ezinezithako zokulwa ne-antibacterial, isiphumo sokuthambisa se-HEC sinokunciphisa ukungonwabi kwesikhumba okubangelwa zizithako zokucoca ezigqithisileyo.
(3). Imiqathango yokusetyenziswa
Nangona i-HEC ineengenelo ezininzi kwiimveliso zokhathalelo lomntu, kukwakho ezinye izinto ekufuneka uziqwalasele xa uyisebenzisa:
3.1 Ulawulo lwesixa esongezelelweyo
Isixa se-HEC esongeziweyo kufuneka sihlengahlengiswe ngokweemfuno ezithile zemveliso. I-HEC eninzi kakhulu inokwenza imveliso ibonakale kakhulu kwaye ichaphazele amava omsebenzisi; I-HEC encinci kakhulu ayinakufikeleli kwisiphumo esifanelekileyo sokuqina. Ngokuqhelekileyo, isixa se-HEC esisetyenzisiweyo siphakathi kwe-0.5% kunye ne-2%, kwaye kufuneka ilungiswe ngokwefomula ethile kunye nesiphumo esilindelekileyo.
3.2 Imiba yonyibiliko
I-HEC kufuneka inyibilikiswe ngokupheleleyo emanzini ukuze isebenze. Ngexesha lenkqubo yokuvelisa, i-HEC idla ngokuxutywa kunye nezinye izithako ngaphambi kokongeza amanzi ngokuthe ngcembe ukukhusela i-caking okanye i-agglomeration. Ngexesha elifanayo, ukuvuselela okwaneleyo kuyadingeka ngexesha lokuchithwa ukuqinisekisa ukuba i-HEC ihlakazeke ngokulinganayo kwisisombululo.
3.3 Ukuhambelana nezinye izithako
I-HEC inozinzo olwahlukeneyo kumaxabiso ahlukeneyo e-pH, ngoko ke ukuhambelana nezinye izithako kufuneka kuqwalaselwe xa kuyilwa ifomula. Ezinye i-surfactants okanye i-solvents zinokuchaphazela ukusebenza kwe-HEC kwaye zibangele ukusilela kwemveliso. Ngoko ke, xa uzisa izithako ezitsha kwifomula, uvavanyo olwaneleyo lokuzinza kufuneka lwenziwe.
Ukusetyenziswa kwe-hydroxyethyl cellulose kwijeli yeshawa kunye nesepha engamanzi kuneenzuzo ezinkulu. Ayiphuculi kuphela iipropathi ezibonakalayo zemveliso, kodwa iphucula amava omsebenzisi. Nangona kunjalo, xa usebenzisa i-HEC, ingqalelo kufuneka ihlawulwe ekulawuleni inani lokongezwa, imiba ye-solubility, kunye nokuhambelana nezinye izithako zokuqinisekisa ukhuseleko kunye nokusebenza kwemveliso. Ngokuqhubela phambili okuqhubekayo kwethekhnoloji, ithemba lesicelo se-HEC kwiimveliso zokunyamekela komntu ziya kuba zibanzi.
Ixesha lokuposa: Aug-06-2024