I-HydroxyEtheetheetheetheetheethl seluplose (hec) yi-polymer engeyiyo i-ionic, i-poly-allmer esuswe kwi-sellulose. Isetyenziswa ngokubanzi kumashishini ahlukeneyo, kubandakanya imihlambi, apho ikhonza njengearhente yokuthambisa, i-geology modifier, kunye nokuzinzisa. Ukukwazi kukaHec ukukhulisa i-vickosity yezicelo ezibaluleke kakhulu kwizicelo ezininzi, ukuqinisekisa isicelo esifanelekileyo, intsebenzo, kunye nokuhlala ixesha elide kwimveliso yokunamathela.
Iipropathi ze-hydroxyythl seluplose
I-HEC iveliswa ngokuphendula ngokusabela kwi-sellylene oxide phantsi kweemeko ze-Alkaline, ezikhokelela kwi-polymer enamaqela e-hydroxytethyl eqhotyoshelwe kwi-selsebone. Inqanaba lokufakwa endaweni (DS) kunye ne-molar I-DS ibhekisa kwinani le-hydroxyl kwimolekyuli esellulose enabantu abaphantsi kwe-hydroxyyl, ngelixa i-MS ibonisa inani le-mole le-ithoydroglucose esele.
I-hec iphawuleka ngokuhlabayo ngamanzi, esenza izisombululo ezicacileyo nezibonakalayo ngokubonisa okuphezulu. I-viscosity yayo iphenjelelwa zizinto ezininzi, kubandakanya ubunzima bemolekyuli, uxinzelelo, ubushushu, kunye ne-pH yesisombululo. Ubunzima bemolekyuli ye-hec bunokusukela ukusuka ezantsi ukuya phezulu ukuya phezulu, ukuvumela ukwenziwa kwee-cohecheves kunye neemfuno ezahlukeneyo zokwakha.
Iindlela zokuphucula i-viscofity
Hydration kunye nokudumba:
I-HEC iphucula i-viscofity yobumbeko ngokuyintloko ngokusebenzisa amandla ayo okuhlamba kwaye idumbe emanzini. Xa i-HC yongezwa kwi-Ackeeting Acketion, amaqela e-hydroxyyl atsalela iimolekyuli zamanzi, ekhokelela ekumsuleni amakhonkco ePolymer. Oku kukudumba konyusa ukunganyangeki kwesicombululo ekuhambeni, ngaloo ndlela kunyusa ukubonwa kwayo. Ubungakanani bokudumba kunye nokubonisa umphumo kukhwaliswe yi-Polymer kunye nobunzima be-hec.
I-Molecroulation:
Kwisisombululo, i-hec polymers ye-Polymenty yentsana ngenxa yesakhiwo sabo sexesha elide. Eli sithandwa sidala inethiwekhi ethintelayo intshukumo yeemolekyuli ngaphakathi komlinganiso, ngaloo ndlela yandisa i-viscofity. I-hele ephezulu yemolekyuli ikhokelela kwi-intengament ebaluleke kakhulu kunye ne-viscofity ephezulu. Inqanaba lokufakwa linokulawulwa ngokuhlengahlengisa uxinzelelo lwe-polymer kunye nobunzima bemoya ye-hec esetyenzisiweyo.
I-hydrogen bound:
I-hec inokwenza iibhondi ze-hydrogen ngeemolekyuli zamanzi kunye nezinye izinto ekuqulunqweni kwembeko. Ezi bondle ze-hydrogen zinegalelo kwi-viscofity ngokudala inethiwekhi eyakhiwe ngaphezulu kwesisombululo. Amaqela e-hydroxyyl kwi-selselose i-selsulone aphucule amandla okwenza iibhondi ze-hydrogen, ngakumbi ukwandisa i-viscofity.
I-Shear-Deling Pring:
I-HEC ibonisa indlela yokuziphatha etyhutyha, kuthetha ukugqabhuka kwayo kuncipha uxinzelelo lwe-Shear. Le ndawo iluncedo kwizicelo ezinamathela kuba ivumela ukuba kusetyenziswe lula phantsi koShear (njengokusasazeka okanye ukuxubha) ngelixa igcina i-viscofity ephezulu kunye nozinzo. Ukuziphatha kwe-shear-ting ye-hec ye-hec yenziwa kulungelelwaniso lwee-polymer kwikhomputha yamandla asetyenzisiweyo, ukunciphisa ukungaxhasi ngaphakathi.
Izicelo zikwimilo yokuthengisa
Ababukeli basezantsi:
I-Hec isetyenziswa kakhulu kwimihlathana esekwe emanzini, njengaleyo yephepha, ii-tics, kunye neenkuni. Isakhono sayo sikuthambile kwaye sizinze lula ukuqulunqwa okunamathela kuqinisekisa ukuba ixutywe ngokufanayo kwaye kulula ukuyisebenzisa. Ephepheni kwaye ukupakisha izibhengezo, i-HEC ibonelela nge-viscofity eyimfuneko yokufumana isicelo esifanelekileyo kunye namandla okudinga.
Amanye amabhethile:
Kumaqela okwakha, njengabasetyenziselwa ufakelo lwethayile okanye izigqubuthelo zodonga, i-HCC iphucula i-viscofity, ukuphucula ukusebenza kwembeko kunye nokuchaswa kwe-SEG. Isenzo sokuthambisa i-HEC iqinisekisa ukuba ukuhlala okunamathela kwindawo ngexesha lokufaka kwaye kuseta ngokufanelekileyo, ukubonelela ngobuchule obuqinileyo noqinileyo.
I-Cosmetic kunye neKhathalelo loMntu
I-hec ikwasetyenziswa kwi-cosmetic kunye neemveliso zononophelo zobuqu ezifuna iipropathi ezinobuhle, ezinjengeebhotile zeenwele kunye nemaski yobuso. Kwezi zicelo, i-HEC ibonelela ngongqingqwa ogudileyo kwaye efana nokusebenza kwenkqubo yemveliso kunye namava abasebenzisi.
Amadlala amayeza:
Kumzi-mveliso wamayeza, i-HEC isetyenziswa kwiziqwengana eziguqukayo kunye nezinye iinkqubo zokuhambisa iziyobisi apho i-viscofity elawulwa yinto ebaluleke kakhulu kwintsebenzo yokuhlambela. I-HEC iqinisekisa ukuba umaleko onamathela yiyunifomu, ekunikezeleni iziyobisi ngokungaguqukiyo kunye nokubambelela kulusu.
Izinto ezichaphazela ukuphuculwa kwe-viscofity
Uxinzelelo:
Ukuxinezeleka kwe-hec ekuqulunqeni okunamathela ngokuthe ngqo kwi-vickosity. Ukugxininiswa okuphezulu kwe-HEC kunyuswe i-viscofity enyukayo ngenxa yokuphathwa kwe-polymer ebalulekileyo kunye ne-ackengetions. Nangona kunjalo, uxinzelelo oluphezulu lunokukhokelela kumda kunye nobunzima ekuqhubekweni.
Ubunzima bemolekyuli:
Ubunzima bemolekyuli ye-hec yinto ebalulekileyo ekuqinisekiseni ukubambelela. I-hec ephezulu yemolekyuli ibonelela nge-viscofity ephezulu kwiindawo ezisezantsi xa ithelekiswa ne-molecrounts yemolekyuli. Ukukhetha ubunzima bobunzima kuxhomekeke kwi-viscofity oyifunayo kunye neemfuno zesicelo.
Iqondo lokushisa:
Ubushushu buchaphazela uVenkile weZisombululo zeHec. Njengoko ubushushu buyanda, i-viscosity idla ngokuncipha ngenxa yokuncitshiswa kwe-hydrogen ye-hydrogen kwaye yanda ukuhamba ngemolekyuli. Ukuqonda ubudlelwane be-viscosity viscosity kubalulekile kwizicelo ezivezwe ngamaqondo obushushu ahlukeneyo.
Ph:
I-PH yokuqulunqa okunamathela zinokuphembelela ukubonakala kwe-hec. I-hec ixelwe ngaphezulu kwinqanaba le-pH, kodwa iimeko ze-pH zinokukhokelela kutshintsho kwisakhiwo sePolymer kunye noVikyusity. Ukuqulunqwa kwemihlambi ngaphakathi kuluhlu lwe-PH luqinisekisa ukusebenza okungaguqukiyo.
IINGOZI ZOKUSETYENZISWA KOKUSETYENZISWA KOHDROXYTYL
Imeko engeyiyo i-ionic:
Uhlobo lwe-ionic olungelulo lwe-HEC luyenza ihambelane noluhlu olubanzi lwezinye izinto zokwenza izinto, kubandakanya ezinye iipolymers, i-surfcantints, kunye nee-electronelytes. Oku kuvumela ukulungelelaniswa kokunamathela ngokuguquguqukayo.
Ukungasebenzi:
I-hec isuselwa kwisellumse, isibonelelo sendalo nesivuselelekileyo. I-biodegrades, iyenza ukhetho olunobuhlobo kwindalo yokumiswa. Ukusetyenziswa kwayo kusetyenziswa kunye nemfuno ekhulayo yeemveliso ezizinzileyo nenobubele.
Uzinzo:
UHec unikezela uzinzo oluhle kakhulu ekwenzeni ukubambelela, ukuthintela ukwahlukana kwesigaba kunye nokuzinza kwamacandelo aqinileyo. Olu gama luqinisekisa ukuba ukunamathela kuhlala kusebenza kubo bonke ubomi bayo kwaye ngexesha lokufaka isicelo.
Iipropathi zokwenza ifilimu:
I-HEC ichaza iifilimu eziguquguqukayo nezingabonakaliyo zomisa, eziluncedo kwizicelo ezinamathela ezifuna umgca ocacileyo weqhinga. Le ndawo iluncedo ikakhulu kwizicelo ezifana neelebheli kunye neetayile.
I-HydroxyEtheetheetheethy idlala indima ebalulekileyo ekomelezeni i-viscofives efana neendlela ezifana nokuhamba-qokelelo kunye nokudumba, i-hidrogen, kunye nokuziphatha okuhlafunayo. Iipropathi zayo, kubandakanya ukubenzela indalo, i-ionic yendalo, i-biodegradiance, kunye nezakhono zokwenza ifilimu, zenza ukuba kuthathe ukhetho olufanelekileyo kwizicelo ezahlukeneyo. Ukuqonda izinto ezichaphazela ukuphucula i-HEC Viscofity, ezinjengokuxinana, ubunzima bemolekyuli, ubushushu, kunye ne-PH, ivumela iifomu ukuba zinxibelelane neemfuno ezithile zomsebenzi. Njengoko amashishini aqhubeka nokufuna izixhobo zokusebenza ezizinzileyo neziphezulu, i-HEC ihlala ixabisekile ekuqulunqweni kweemveliso ezenziweyo.
Ixesha leposi: NgoMeyi-29 ukuya ku-4024