Kwimizobo yokupeyinta, i-HydroxyEtheetheetheetheetheethl seluplose (hec) yindawo eqhelekileyo ye-gickener kunye ne-raheology enokuphucula uzinzo, ukuvelisa kunye neepropathi zokwakha. Ukwenzela ukongeza i-hydroxythyl seluplose yokuqinisekisa ukuba isebenza ngokufezekileyo, amanyathelo athile kunye nezilumkiso kufuneka zilandelwe. Inkqubo ethile yile ilandelayo:
1. Iipropathi ze-hydroxyylyl seluplose
I-HydroxyEtheetheetheetheetheetheetheetheetheethl seluplose yi-polymer ye-ionic enganyibilikiyo ye-ionic ene-bicketions egqwesileyo, ukwenza ifilimu, ukugcinwa kwamanzi, ukumiswa kwamanzi, ukunqunyanyiswa kunye nokumiswa kweepropathi. Iqhelekile isetyenziswa kwiipeyinti ezisekwe emanzini, imihlambi, i-ceramics, i-inki kunye nezinye iimveliso. Ifunyanwa ngokutshintsha indawo yenxalenye yamaqela e-hydroxyl kwi-selsulose thein kunye namaqela e-hydrongyteshyl, ngoko ke inomoya ofanelekileyo.
Imisebenzi ephambili ye-hec kwiipeyinti zezi:
Isiphumo sokuqaqamba: Ukunyusa i-viscofity yepeyinti, thintela ipeyinti ekubeni iphinde ibuyele, kwaye ikwenze ibe nepropati efanelekileyo yokwakha.
Iziphumo zokumiswa: Inokusasaza ngokulinganayo kwaye uzinze amasuntswana aqinileyo anjengemigangatho kunye neefilimu ukubathintela ekusombululeni.
Ukugcinwa kwamanzi
Ulawulo lwe-Rheeeelogy: Lungisa ulwelo kunye nokulinganisa kokudibana, kunye nokuphucula ingxaki yegazi ngexesha lolwakhiwo.
2.
Inyathelo laphambi kokuncitshiswa kwenyathelo lokwenyani, i-HydroxyEtheetheetheetheethl seluplose ikhutshiwe kwaye ichithwe ngendlela yokuphambuka kwangaphambili. Ukuqinisekisa ukuba i-sellsese inokudlala ngokupheleleyo indima yayo, ihlala icetyiswa ukunyibilikisa emanzini kuqala, kunokuba ukongeza ngokuthe ngqo kwi-com. Amanyathelo athile alandelayo:
Khetha isolvent efanelekileyo: Ngokwesiqhelo amanzi asetyenziswayo asetyenziswa njengesinyibilikisi. Ukuba kukho ezinye izinyibilikisi zezinto eziphilayo kwinkqubo
Ngokukhanya ngokuthe ngcembe i-hydroxyEtheethyl seluplose: kancinci kwaye ngokulinganayo i-hydroxyyteethyl seluplose powuple ngelixa ivuselela amanzi ukuthintela ukwahlula i-AgeGlomeration. Isantya esitshatileyo kufuneka sicothise ukunqanda ukunciphisa inqanaba lokuchitheka kwe-selsulose okanye ukwenza i-colloids "ngenxa yamandla esheradi.
Ukuchithwana okumileyo: Emva kokutshiza i-hydroxyylyl seluplose, kufuneka ishiywe ukuba ilingane ixesha elithile (ngokufuthi imizuzu engama-30 ukuya kuqinisekisa ukuba i-selsulose idubule kwaye inyibilikisiwe emanzini. Ixesha lokuphelisa lixhomekeke kuhlobo lwesellulose, ubushushu be-solvent kunye neemeko ezinomdla.
Lungisa ubushushu bokuphelisa ubushushu: ukwandisa amaqondo obushushu kunceda ukukhawulezisa inkqubo yokupheliswa kwe-hydroxyythl sellyulose. Ihlala icetyiswa ukulawula ubushushu besisombululo phakathi kwe-20 ℃ -40 ℃. Iqondo lokushisa eliphezulu kakhulu linokubangela ukonakaliswa kweselfowuni okanye ukuwohloka kwesisombululo.
Ukulungelelanisa ixabiso le-pH lesisombululo ukunyibilisela kwe-hydroxythy selliese inxulumene nexabiso le-pH yesisombululo. Ihlala inyibilikisa ngcono phantsi kwemeko engathathi cala okanye kancinci i-alkaline, enexabiso le-pH phakathi kwe-6-8. Ngexesha lenkqubo yokupheliswa, ixabiso le-pH linokulungiswa ngokudibanisa i-ammonia okanye ezinye izinto zeAlkaline njengoko kufuneka.
Ukongeza isisombululo se-hydroxythl seluplose kwinkqubo ehlekisayo emva kokupheliswa, yongeza isisombululo sokudibana. Ngexesha lenkqubo yokongeza, kufuneka kongezwe ngokuthe ngcembe kwaye ivuselele ngokuqhubekayo ukuqinisekisa ukuxuba okwaneleyo kwematrix. Ngexesha lenkqubo yokuxuba, kuyimfuneko ukukhetha isantya esifanelekileyo ngokwenkqubo eyahlukeneyo ukuthintela inkqubo ukusuka ekutyibilikeni okanye ukonakaliswa kweShear.
Ukuhlengahlengisa i-viscofity emva kongeza i-hydroxyythl seluplose, i-viscosity ye-comating inokulawulwa ngokuhlengahlengiswa kwesixa esongeziweyo. Ngokubanzi, inani le-hydroxythyl seluplose isetyenziswe phakathi kwe-0.3% -1.0% (isalathisela ubunzima), kwaye isixa esithile esongezwe kufuneka sihlengahlengiswe ngokweemfuno zokuqulunqwa. Eyona nto iphezulu kakhulu inqobololonga inokubangela ukuba ukhathazekile ukuba ne-viscofity ephezulu kakhulu kunye nokungabi nazilo ezichaphazela ukusebenza; Ngelixa ukongezwa okunganeleyo kusenokungakwazi ukudlala indima yokutyibilika kunye nokumiswa.
Iimvavanyo zokuqhuba kunye neemvavanyo zokuzithandela zokugcina emva kokongeza i-hydroxyteethyl kunye nokulungelelanisa ifomula yokuthintela, i-SAG, i-SOG, i-SOG, uvavanyo lokugcina izityalo lukwafuneka Qaphela i-sedation ye-COORDE emva kokuma ixesha elithile, utshintsho lwe-viscosity, njl njl.
I-3. Izilumkiso
Thintela ukuphazamiseka: Ngexesha lenkqubo yokupheliswa, i-HydroxyEtheetheetheetheetheethl ilula kakhulu ukuba ifumane amanzi kwaye idumbe, ke kufuneka ifakwe kumanzi ngokuthe chu kwaye iqinisekise ukongezwa kweendlela zokuthintela amaqhosha. Esi sikhonkco esiphambili ekusebenzeni, kungenjalo sinokuchaphazela inqanaba lokutshabalalisa kunye nokufana.
Kulumkele ukunyanzelwa kwesheshi ephezulu: Xa uyongeza iSellUlose, isantya esifudumeleyo akufuneki siphephe ukonakalisa i-shearte molecular thein ngenxa yokuncipha kwe-shear. Ukongeza, kwimveliso elandelayo yokuhlakulela, ukusetyenziswa kwezixhobo zehenyukazi ephezulu kufuneka kuthintelwe kangangoko kunokwenzeka.
Lawula iqondo lokushisana: Xa inyibilika i-hydroxytethyl sellise, iqondo lobushushu lamanzi akufuneki liphezulu kakhulu. Kuyacetyiswa ukulawula nge-20 ℃ -40 ℃. Phantsi kweemeko zobushushu obuphezulu, i-sellyuese inokuhlazisa, ikhokelela ekunciphiseni kwefuthe lakhe kunye novimba.
Ukugcinwa kwesisombululo: i-hydroxythyl seluplose yezisombululo ngokubanzi kufuneka ilungiswe kwaye isetyenziswe kwangoko. Ukugcinwa kwexesha elide kuya kuchaphazela u-Viscofity kunye nozinzo. Ihlala icetyiswa ukuba ilungiselele isisombululo esifunekayo ngomhla wemveliso yokupeyinta ukugcina intsebenzo yayo efanelekileyo.
Ukongezwa kwe-hydroxythyl seluplose ukuya kwipeyinti ayisiyo inkqubo yokuxhuzula elula, kodwa kufuneka idityaniswe neemfuno zenkqubo kunye neenkcazo zokusebenza ezisetyenziswayo zisetyenziswa ngokupheleleyo. Ngexesha lenkqubo yokongeza, nikela ingqalelo kwinyathelo lokuphambanisa kwangaphambili, ulawulo lweqondo lokushisa kunye nexabiso le-pH, kunye nomxube opheleleyo emva kokongezwa. Ezi nkcukacha ziya kuchaphazela ngqo umgangatho kunye nokuzinza kwentsebenzo.
Ixesha lasemva: Sep-19 ukuya kwi-2024