IHydroxyethyl methylcellulose (HEMC) iyi-polymer esetshenziswa kakhulu ezimbonini ezahlukahlukene, kufaka phakathi ezemithi, ukudla, izimonyo, nezokwakha. Yaziswa kakhulu ngokujiya kwayo, i-emulsifying, ukwenza amafilimu, kanye nezakhiwo zayo zokuzinzisa. Naphezu kokusetshenziswa kwayo okubanzi, ukuqinisekisa ukuphepha phakathi nokuphathwa nokusetshenziswa kwayo kubalulekile. Nazi izinyathelo zokuphepha eziphelele zokusebenzisa i-hydroxyethyl methylcellulose:
1. Ukuqonda Indaba
I-HEMC i-non-ionic cellulose ether, okuphuma ku-cellulose lapho amaqembu e-hydroxyl ashintshwe kancane ngamaqembu e-hydroxyethyl kanye ne-methyl. Lokhu kuguqulwa kuthuthukisa ukunyibilika nokusebenza kwayo. Ukwazi izici zayo zamakhemikhali nezomzimba, njengokuncibilika, i-viscosity, nokuzinza, kuyasiza ekuyiphatheni ngokuphepha.
2. Izinto Zokuzivikela Zomuntu Siqu (PPE)
Amagilavu nezingubo zokuzivikela:
Gqoka amagilavu amelana namakhemikhali ukuze uvimbele ukuthintana kwesikhumba.
Sebenzisa izingubo zokuzivikela, okuhlanganisa amahembe anemikhono emide namabhulukwe, ukuze ugweme ukuvezwa kwesikhumba.
Ukuvikelwa Kwamehlo:
Sebenzisa izibuko zokuphepha noma izivikelo zobuso ukuze uvikele othulini noma ekuchaphazeni.
Ukuvikela Ukuphefumula:
Uma uphatha i-HEMC ngendlela eyimpushana, sebenzisa izifihla-buso zothuli noma izinsimbi zokuphefumula ukuze ugweme ukuhogela izinhlayiya ezinhle.
3. Ukuphatha kanye Nesitoreji
Ukungenisa umoya:
Qinisekisa ukuthi kungena umoya owanele endaweni yokusebenza ukuze unciphise ukunqwabelana kothuli.
Sebenzisa umoya wendawo yokukhipha umoya noma ezinye izilawuli zobunjiniyela ukuze ugcine amaleveli ahamba emoyeni ngaphansi kwemikhawulo yokuchayeka enconyiwe.
Isitoreji:
Gcina i-HEMC endaweni epholile, eyomile ngaphandle komswakama kanye nokukhanya kwelanga okuqondile.
Gcina iziqukathi zivaliwe ngokuqinile ukuze uvimbele ukungcola nokumuncwa komswakama.
Gcina kude nezinto ezingahambelani njengama-oxidizer aqinile.
Izinyathelo Zokuphatha:
Gwema ukudala uthuli; phatha ngobumnene.
Sebenzisa amasu afanelekile njengokumanzisa noma ukusebenzisa inqola uthuli ukuze unciphise izinhlayiya ezihamba emoyeni.
Sebenzisa izinqubo ezinhle zokunakekela indlu ukuze uvimbele ukunqwabelana kothuli ezindaweni ezingaphezulu.
4. Izinqubo zokuchitheka nokuvuza
Ukuchitheka Okuncane:
Shanela noma u cleane okokusebenza bese uyibeka esitsheni sokulahla esifanelekile.
Gwema ukushanela okomile ukuze uvimbele ukuhlakazeka kothuli; sebenzisa izindlela ezimanzi noma izihlanzi ezihlungiwe ze-HEPA.
Ukuchitheka Okukhulu:
Susa indawo futhi ukhiphe umoya.
Gqoka i-PPE efanele futhi uqukathe ukuchitheka ukuze ukunqande ukuthi kungasakazeki.
Sebenzisa izinto ezingenasici njengesihlabathi noma i-vermiculite ukuze umunce into.
Lahla izinto eziqoqiwe ngokuhambisana nemithetho yendawo.
5. Izilawuli Zokuchayeka kanye Nenhlanzeko yomuntu siqu
Imikhawulo Yokuchayeka:
Landela imihlahlandlela ye-Occupational Safety and Health Administration (OSHA) noma imithetho yendawo efanele mayelana nemikhawulo yokuchayeka.
Ukuhlanzeka komuntu siqu:
Geza izandla kahle ngemva kokuphatha i-HEMC, ikakhulukazi ngaphambi kokudla, ukuphuza, noma ukubhema.
Gwema ukuthinta ubuso bakho ngamagilavu angcolile noma izandla.
6. Izingozi Zezempilo kanye Nezinyathelo Zosizo Lokuqala
Ukuhogela:
Ukuchayeka isikhathi eside othulini lwe-HEMC kungase kubangele ukucasuka kokuphefumula.
Hambisa umuntu othintekile emoyeni omusha futhi afune usizo lwezempilo uma izimpawu ziqhubeka.
Othintana Nesikhumba:
Geza indawo ethintekile ngensipho namanzi.
Funa iseluleko sezokwelapha uma kuvela ukucasuka.
Othintana Namehlo:
Hlanza amehlo kahle ngamanzi okungenani imizuzu eyi-15.
Susa amalensi oxhumana naye uma ekhona futhi kulula ukuwenza.
Thola usizo lwezokwelapha uma ukucasuka kuqhubeka.
Ukungenisa:
Hlanza umlomo ngamanzi.
Ungabangeli ukuhlanza ngaphandle uma uqondiswa abasebenzi bezokwelapha.
Thola usizo lwezempilo uma udliwe kaningi.
7. Izingozi Zomlilo Neziqhumane
I-HEMC ayivuthi kakhulu kodwa ingasha uma ichayeke emlilweni.
Izinyathelo Zokulwa Nomlilo:
Sebenzisa isifutho samanzi, igwebu, ikhemikhali eyomile, noma isikhutha ukuze ucime umlilo.
Gqoka amagiya okuvikela agcwele, okuhlanganisa nezinto eziziphefumulelayo (SCBA), lapho ulwa nemililo ehlanganisa i-HEMC.
Gwema ukusebenzisa imifudlana yamanzi enengcindezi ephezulu, engasakaza umlilo.
8. Izinyathelo Zokuvikela Imvelo
Gwema Ukukhishwa Kwemvelo:
Vimbela ukukhululwa kwe-HEMC endaweni ezungezile, ikakhulukazi emanzini, njengoba kungase kuthinte ukuphila kwasemanzini.
Ukulahlwa:
Lahla i-HEMC ngokuya ngemithetho yendawo, yesifunda, neyenhlangano.
Ungachithi emanzini ngaphandle kokwelashwa okufanele.
9. Ulwazi Lokulawula
Ukulebula nokuhlukanisa:
Qinisekisa ukuthi iziqukathi ze-HEMC zilebulwe ngokufanelekile ngokuya ngamazinga okulawula.
Zijwayeze Ishidi Ledatha Yezokuphepha (SDS) futhi uthobele imihlahlandlela yalo.
Ezokuthutha:
Landela imithethonqubo yokuthutha i-HEMC, uqinisekise ukuthi iziqukathi zivaliwe futhi zivikelekile.
10. Ukuqeqeshwa Nemfundo
Ukuqeqeshwa Kwabasebenzi:
Nikeza ukuqeqeshwa ekuphatheni kahle, ukugcinwa, kanye nokulahlwa kwe-HEMC.
Qinisekisa ukuthi abasebenzi bayazi ngezingozi ezingase zibe khona kanye nezinyathelo zokuphepha ezifanele.
Izinqubo Eziphuthumayo:
Yakha futhi uxhumane nezinqubo eziphuthumayo zokuchitheka, ukuvuza, nokuchayeka.
Yenza ukuzivocavoca njalo ukuqinisekisa ukulungela.
11. Izixwayiso eziqondene nomkhiqizo
Izingozi eziqondene nokwakhiwa:
Kuye ngokwakhiwa nokugxila kwe-HEMC, izinyathelo ezengeziwe zokuphepha zingadingeka.
Bheka imihlahlandlela eqondene nomkhiqizo kanye nezincomo zomkhiqizi.
Imihlahlandlela eqondene nohlelo lokusebenza:
Kwezemithi, qinisekisa ukuthi i-HEMC ingeyebanga elifanele lokumunca noma lokujova.
Ekwakhiweni, qaphela uthuli olukhiqizwa ngesikhathi sokuxuba nokufaka isicelo.
Ngokunamathela kulezi zinyathelo zokuphepha, ubungozi obuhlobene nokusetshenziswa kwe-hydroxyethyl methylcellulose bungancishiswa kakhulu. Ukuqinisekisa indawo yokusebenza ephephile akugcini nje ngokuvikela abasebenzi kodwa futhi kugcina ubuqotho bomkhiqizo nendawo ezungezile.
Isikhathi sokuthumela: May-31-2024