Indlela yokulondoloza kunye nokubona i-viscosity ye-hydroxypropyl methylcellulose?

I-viscosity ebonakalayo yisalathisi esibalulekileyo se-hydroxypropyl methylcellulose, iindlela zokulinganisa ezisetyenziswa ngokuqhelekileyo ziquka i-viscometry ejikelezayo, i-capillary viscometry kunye ne-drop viscometry.

IHydroxypropyl methylcellulose ngaphambili yayilinganiswe kusetyenziswa i-capillary viscometry kusetyenziswa i-viscometer ye-Ubbelohde.Ngokuqhelekileyo isisombululo somlinganiselo sisisombululo samanzi se-2, ifomula yile: V = Kdt.I-V imele i-viscosity, i-K yinto engaguqukiyo ye-viscometer, i-d imele ubuninzi kwiqondo lokushisa elingaguqukiyo, t ibhekisela kwixesha ukusuka phezulu ukuya ezantsi kwe-viscometer, iyunithi yesibini, le ndlela inzima ukuyisebenzisa kwaye kulula ukubangela okungalunganga, kwaye kunzima ukwahlula umgangatho we-hydroxypropyl methylcellulose.

Ingxaki ye-delamination yeglue yokwakha yingxaki enkulu edibana nabathengi.Okokuqala, ingxaki yezinto eziluhlaza kufuneka ithathelwe ingqalelo kuluhlu lweglue yokwakha.Isizathu esona sizathu sokwakhiwa kweglue layer kukuba i-polyvinyl alcohol (PVA) kunye ne-hydroxypropyl methylcellulose (HPMC) ayihambelani.Isizathu sesibini kukuba ixesha lokuvuselela alanele, kwaye ukusebenza kokuqina kweglue yokwakha akulungile.

I-hydroxypropyl methylcellulose (HPMC) yokwenziwa kwangoku kufuneka isetyenziswe kwiglue yokwakha, kuba i-hydroxypropyl methylcellulose (HPMC) ihlakazwe emanzini kwaye ayikwazi ukunyibilika ngokwenene, kwaye i-viscosity yolwelo ikhula ngokuthe ngcembe malunga nemizuzu emi-2, yenze i-Transparent viscous colloid. .

Xa iimveliso ezitshisayo ezincibilikayo zixutywe kunye emanzini abandayo, ziya kusasazeka ngokukhawuleza emanzini ashushu kwaye ziphele emanzini ashushu.Xa ubushushu buhla kwiqondo elithile lobushushu, i-viscosity iya kubonakala ngokukhawuleza de i-viscous colloid ecacileyo yenziwe.I-Hydroxypropyl kwi-adhesive yokwakha Idosi ecetyiswayo ye-HPMC yi-2-4kg.

I-Hydroxypropyl methylcellulose (HPMC) ineekhemikhali ezizinzile, ukuxhathisa ukubola kunye nokugcinwa kwamanzi okulungileyo kwi-adhesives yokwakha, kwaye ayichaphazeli utshintsho lwe-pH.Ingasetyenziswa ukusuka kwi-100,000 ukuya kwi-200,000 S, kodwa i-viscosity ephezulu kwimveliso, ingcono, kwaye i-viscosity ihambelana ngokungafaniyo namandla okudibanisa.Ukuphakama kwe-viscosity, amandla aphantsi, ngokubanzi i-viscosity ye-100,000 S ifanelekile.