Igama lekhemikhali | Hydroxypropyl Methyl Cellulose |
Isithethantonye | Iselulosi ether;I-Hypromelose;I-Cellulose, i-2-hydroxypropyl methyl ether;I-Hydroxypropyl methyl cellulose;HPMC;MHPC |
Inombolo yeCAS | 9004-65-3 |
Inombolo yeEC | 618-389-6 |
Uphawu | EipponCell |
IBanga leMveliso | HPMC YB 510M |
Ukunyibilika | I-Etere yeSelulosi eNyibilikayo ngamanzi |
Ubume bomzimba | Umgubo we-cellulose omhlophe ukuya kumhlophe |
Indlela | 19.0-24.0% |
I-Hydroxypropoxy | 4.0-12.0% |
Ukufuma | Ubuninzi.6% |
PH | 4.0-8.0 |
Viscosity Brookfield 2% isisombululo | 8000-12000 mPa.s |
I-Viscosity NDJ 2% isisombululo | 8000-12000 mPa.S |
Umxholo wothuthu | Ubukhulu be-5.0% |
Ubungakanani beMesh | I-99% iphumelele i-100 mesh |
I-EipponCell HPMC YB 510M ingasetyenziswa kwipeyinti esekwe emanzini kunye nezisusi zepeyinti.Izisusi zepeyinti zizinto, mhlawumbi izinyibilikisi okanye intlama, ezenzelwe ukunyibilikisa okanye ukudumba iifilimu zokugquma.Ziquka ikakhulu izinyibilikisi ezomeleleyo, iparafini, i-cellulose ether, phakathi kwezinye izithako.
Ekwakhiweni kweenqanawa, iindlela ezahlukeneyo zoomatshini ezifana nokuhlatywa kwesandla, ukudutyulwa kokudubula, ukuqhushumba kwesanti, amanzi anoxinzelelo oluphezulu, kunye neejethi ezirhabaxa zidla ngokusetyenziswa ukususa iingubo ezindala.Nangona kunjalo, xa usebenzisana ne-aluminium hulls, ezi ndlela zoomatshini zinokukrwela umphezulu we-aluminium.Ngenxa yoko, i-sandpaper polishing kunye ne-remover remover zihlala zisetyenziswa njengeyona ndlela iphambili yokususa ifilimu yepeyinti endala.
Iinzuzo zokusebenzisa i-remover remover ziquka ukusebenza kakuhle okuphezulu, ukusetyenziswa kweqondo lokushisa kwegumbi, ukubola okuncinci kwisinyithi, ukusetyenziswa okulula, kwaye akukho mfuneko yezixhobo ezongezelelweyo. Ukuphuhliswa kweemveliso ezintsha zokususa ipeyinti, kubandakanywa ezinye iindlela ezisekelwe emanzini, ziye zakhula kwiminyaka yamuva nje.. Ezi nkqubela phambili zibe nesiphumo esiphuculweyo sokususa ipeyinti kunye nokusebenza okuphuculweyo kokusingqongileyo. iimveliso ezinokutsha ziye ngokuthe ngcembe zixhaphake ngakumbi kwimarike yokususa ipeyinti.
Eyona ndlela iphambili yokususa ipeyinti ixhomekeke ekusetyenzisweni kwezinyibilikisi zendalo ukunyibilikisa kunye nokudumba iindidi ngeendidi zeefilim zokugquma, ngaloo ndlela kuququzelela ukususwa kweeleya zepeyinti ezindala kumphezulu we-substrate.Xa umcimi wepeyinti ungena kwizithuba phakathi kwamakhonkco e-polymer ngaphakathi kwengubo, iqalisa ukudumba kwepolymer.Ngenxa yoko, umthamo wefilimu edibeneyo uyanda, okukhokelela ekunciphiseni uxinzelelo lwangaphakathi oluveliswa yipolymer ekhulayo.Ekugqibeleni, oku kuncipha koxinzelelo lwangaphakathi kuphazamisa ukubambelela phakathi kwefilimu edibeneyo kunye ne-substrate.
Njengoko isisusi sepeyinti siqhubeka sisebenza kwifilimu egqunyiweyo, iqhubela phambili ukusuka ekudumbeni kwendawo ukuya ekudumbeni kwamaphepha abanzi.Oku kubangela ukubunjwa kwemibimbi ngaphakathi kwefilimu egqunyiweyo kwaye ekugqibeleni kuphazamisa ngokupheleleyo ukunamathela kwayo kwi-substrate.
Ngale nkqubo, i-solvent ye-organic kwi-remover remover iphula ngokufanelekileyo iibhondi zeekhemikhali ngaphakathi kwefilimu yokugubungela, iyancipha ingqibelelo yayo yesakhiwo kunye nokudala iimeko zokususwa kwayo. ukupeyinta kwakhona okanye ezinye izicelo.
Iipeyinti zepeyinti zingahlelwa zibe zimbini iintlobo eziphambili ngokusekelwe kuhlobo lwefilimu yokwenza ifilimu abayisusayo.Udidi lokuqala lusebenzisa izinyibilikisi eziphilayo ezifana neeketones, benzenes, kunye neparafini ye-volatilization retarder (eyaziwa ngokuba yi-lotion emhlophe).Ezi zisusi zepeyinti zisetyenziselwa ukususa iifilimu zepeyinti ezindala ezenziwe ngeoli, i-alkyd-based, okanye i-nitro-based based paints.Ngokuqhelekileyo zenziwe ngee-solvents eziphilayo eziguquguqukayo, ezinokubonisa ukutsha kunye nemiba yetyhefu.Noko ke, azibizi kangako.
Uhlobo lwesibini lokususwa kwepeyinti luyi-chlorinated hydrocarbon formulation, equkethe ngokukodwa i-dichloromethane, iparafini, kunye ne-cellulose ether.Olu hlobo ludla ngokubizwa ngokuba sisisusi sepeyinti egungxulwayo ubuthi obuphantsi, kunye noluhlu olubanzi lwezicelo.
Izisusi zepeyinti ezinedichloromethane njengesinyibilikisi esiphambili zinokuphinda zihlelwe ngokusekwe kumaxabiso e-pH. Sahlulwe ngokwezisusi zepeyinti ezingathathi hlangothi ezinexabiso le-pH elimalunga ne-7±1, izisusi zepeyinti zealkaline ezinexabiso le-pH elingaphezulu kwe-7, kunye nezisusi zepeyinti ezineasidi. ngexabiso eliphantsi le-pH.
Ezi ntlobo zahlukeneyo zokususa ipeyinti zibonelela ngeendlela zokususa ngokufanelekileyo iintlobo ezithile zeefilimu zepeyinti, ezinikezela ngamanqanaba ahlukeneyo etyhefu, ukusebenza kakuhle, kunye nokufaneleka kokusetyenziswa. iimfuno ezifunekayo zokhuseleko kunye nokusebenza.
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