Inkcazo:
IHydroxyethylcellulose (HEC) yipolymer eguquguqukayo enoluhlu olubanzi lwezicelo kuwo wonke amashishini ahlukeneyo, enye yosetyenziso lwayo olubalulekileyo kukwenziwa kweepeyinti kunye neengubo.Sihlola ubume bemichiza ye-HEC, iipropathi zayo ze-rheological, kunye nendlela ezi zakhiwo zinika ngayo ukuqulunqwa kwazo iinzuzo ezizodwa.
Yazisa:
I-Hydroxyethylcellulose (HEC) yipolymer enyibilikayo emanzini ephuma kwi-cellulose, i-polymer yendalo efumaneka kwiindonga zeeseli zezityalo.I-HEC ineempawu ezikhethekileyo ngenxa yesakhiwo sayo sekhemikhali, eyenza ibe yinto efanelekileyo kwiintlobo ezahlukeneyo zezicelo zoshishino.Ehlabathini lepeyinti kunye neengubo, i-HEC idlala indima ebalulekileyo ekuphuculeni iimpawu eziphambili ezifana nokulawulwa kwe-viscosity, ukugcinwa kwamanzi, ukubunjwa kwefilimu kunye nokuzinza ngokubanzi.
Ubume bekhemikhali kunye neempawu zerheological zeHEC:
Ukuqonda ukwakheka kweekhemikhali ze-HEC kubalulekile ekuqondeni umsebenzi wayo kwiipende kunye neengubo.I-HEC ithathwa kwi-cellulose ngoluhlu lwee-chemical modifications ezizisa amaqela e-hydroxyethyl.Ubukho bala maqela bunika i-HEC ukunyibilika kwamanzi, okwenza kube luncedo kakhulu kwimiqulu esekwe emanzini.
Iipropathi ze-rheological ze-HEC, ngakumbi amandla ayo okuqina, zibaluleke kakhulu kwiindlela zokwaleka.I-HEC isebenza njenge-rheology modifier, echaphazela ukuziphatha kokuhamba kunye ne-viscosity yengubo.Le propati ibalulekile ukunqanda ukuhlala kwe-pigment, qinisekisa ukuba usetyenziso kunye nokukhuthaza ukhuseleko olufanelekileyo xa isetyenziswe ngebrashi okanye i-roller.
Ukusetyenziswa kwe-HEC kwiingubo ezisekwe emanzini:
Iingubo ezisekelwe emanzini zixabiswa ngenxa yempembelelo yazo ephantsi yokusingqongileyo kunye nomxholo ophantsi we-volatile organic compound (VOC).I-HEC idlala indima ephambili kule miqulu ngokubonelela ngokuzinza, ukuqina kunye nolawulo lwe-rheology.I-polymer inceda ukukhusela i-pigment ngexesha lokugcinwa, iqinisekisa i-viscosity ehambelanayo, kwaye iphucula ukusebenza ngokubanzi kwepeyinti.Ukongezelela, i-HEC inceda ukwandisa ixesha elivulekileyo, ngaloo ndlela yandisa ixesha lesicelo ngaphambi kokuba ipeyinti yome.
Ukusetyenziswa kwe-HEC kwiingubo ezisekwe kwi-solvent:
Nangona iingubo ezisekelwe emanzini zihambelana nokusingqongileyo, i-solvent-based formulations isaxhaphakile kwizicelo ezithile.Ukuhambelana kwe-HEC namanzi kunye ne-solvents kwenza ukuba kube yinto eguquguqukayo yokuzikhethela kwiingubo ezisekelwe kwi-solvent.Kule fomyula, i-HEC isebenza njenge-binder, inceda ekubunjweni kwefilimu kunye nokubambelela.Ikhono layo lokugcina i-viscosity phezu komgangatho wokushisa kubaluleke kakhulu kwiinkqubo ezisekelwe kwi-solvent, ukuqinisekisa ukusebenza okuzinzileyo kunye nokuhambelana kwesicelo.
Ukugquma umgubo kunye neHEC:
Iingubo zomgubo zithandwa ngenxa yokuqina kwazo, ubuhlobo bendalo, kunye nokulula kwesicelo.Ukongeza i-HEC kwiingubo zomgubo ziphucula ukuhamba kwazo kunye neempawu zokulinganisa.I-polymer inceda ukulawula i-rheology ye-powder coatings, iqinisekisa ifilimu egudileyo, efanayo ngexesha lokusetyenziswa.I-solubility yamanzi ye-HEC inenzuzo kwinkqubo yokuvelisa i-powder coatings, inika indlela efanelekileyo yokubandakanya i-polymer ekuqulunqweni.
I-HEC njenge-stabilizer kunye ne-arhente yokugcina amanzi:
Ukongeza kwindima yayo njenge-rheology modifier kunye ne-binder, i-HEC isebenza njenge-stabilizer esebenzayo kwipeyinti kunye ne-coating formulations.I-polymer inceda ukuthintela ukuhlukana kwesigaba kunye nemvula, igalelo ekuzinzeni kwexesha elide lemveliso.Ukongezelela, i-HEC isebenza njenge-arhente yokugcina amanzi, ukunciphisa ukulahleka komswakama ngexesha lokumisa.Oku kubaluleke kakhulu ukuqinisekisa ukubunjwa kwefilimu efanelekileyo, ukubambelela kunye nokuqina kwengubo.
ukuququmbela:
IHydroxyethylcellulose (HEC) sisithako esisebenzayo nesiyimfuneko kwiipeyinti kunye neengubo.Inhlanganisela yayo ekhethekileyo yokunyibilika kwamanzi, ukulawulwa kwe-rheology, iipropati zokwenza ifilimu kunye nokuzinza okuphuculweyo kwenza ukuba ibe yinto exabisekileyo yokudibanisa kwiindlela ezahlukeneyo.Ukususela kwiingubo ezisekelwe emanzini ukuya kwi-solvent-based based based and powder formulations, i-HEC idlala indima eninzi ekuphuculeni ukusebenza kunye nokuqinisekisa umgangatho wokugqibela wemveliso.Njengoko imfuno yokusingqongileyo kunye nokusebenza okuphezulu kweengubo zokugqoka ziqhubeka nokunyuka, ukusetyenziswa kwe-HEC kunokwenzeka ukuba kwandise, kuqinise ngakumbi isikhundla sayo esibalulekileyo kwishishini leengubo.
Ixesha lokuposa: Nov-28-2023