Hydroxypropylmethylcellulose (HPMC) is a cellulose ether inotorwa kubva kune zvakasikwa sosi pulp uye donje linters.Nekuda kwehunhu hwayo hwakasiyana, hunosanganisira kunyungudika kwemvura, kugona kukora, kugadzira firimu, nezvimwewo, inoshandiswa zvakanyanya mumaindasitiri akasiyana.Chimwe chezvinhu zvakakosha zvekufunga kana uchishandisa HPMC ndeye viscosity yayo, iyo inogona kukanganisa zvakanyanya kuita kwayo munzvimbo dzakasiyana dzekushandisa.Muchinyorwa chino, tinokurukura kuti sei cellulose HPMC ine maviscosities akasiyana ichifanira kusarudzwa kune akasiyana mashandisirwo nharaunda, uye iyo chaiyo viscosity inogona kubatsira kukwirisa HPMC kuita.
Viscosity chiyero chekuramba kwemvura kuyerera uye chinhu chakakosha chekufungisisa paunenge uchigadzira zvigadzirwa zvinoda kuyerera chaiko.Viscosity inokanganisa mashandiro eHPMC nekuti inosarudza kugona kwayo kuumba gels, inokanganisa pH yemushonga, ukobvu hwejasi, uye zvimwe zvinhu zvemuviri.HPMC inowanikwa mune akasiyana viscosity mamakisi, anonyanya kuzivikanwa marudzi ari low viscosity (LV), yepakati viscosity (MV) uye yakakwirira viscosity (HV).Imwe neimwe yemhando idzi ine chinangwa chaicho uye inokodzera imwe nharaunda.
Low Viscosity (LV) HPMC
Low viscosity HPMC ine huremu hushoma hwemamorekuru uye inonyungudika nyore mumvura.Ndiyo mhando yakajairika yeHPMC uye inoshandiswa mumaindasitiri akasiyana siyana anosanganisira chikafu, zvekuzora, kuvaka nemishonga.LV HPMC inonyatsokodzera zvikumbiro zvinoda yakaderera kusvika yepakati viscosity mhinduro senge akajeka gels, emulsion uye pendi.LV HPMC inogona zvakare kushandiswa kuwedzera hupenyu hwesherufu yezvikafu, kuderedza syneresis uye kupa yakatsetseka mameseji.
LV HPMC inowanzo shandiswa muindasitiri yekuvaka kuvandudza kushanda kwesimende-yakavakirwa zvinhu senge madhaka, grouts uye mataira anonamira.Inobatsira kuderedza kurasikirwa kwemvura mumasanganiswa esimende, inodzivirira kuputika, uye inosimbisa chisungo pakati pezvinhu.LV HPMC inoshandiswawo kuwedzera kusimba uye kusimba kwepurasita, stucco uye zvimwe zvine hukama zvinhu.
Medium Viscosity (MV) HPMC
Medium viscosity HPMC ine huremu hwepamusoro kupfuura LV HPMC uye haigone kunyungudika mumvura.Inowanzo shandiswa mumashandisirwo anoda mamwe akaomeswa mhinduro senge machira, mavarnish uye ingi.MV HPMC ine kudzora kuyerera kuri nani uye zvivakwa zvekushandisa pane LV HPMC, zvichikonzera yunifomu uye inowirirana firimu ukobvu.MV HPMC inogona zvakare kushandiswa pamusoro pehupamhi pH renji, ichipa kumwe kuchinjika kune akasiyana maapplication.
MV HPMC inoshandiswawo zvakanyanya muzvigadzirwa zvemishonga, senge mahwendefa anodzorwa ekuburitsa, sezvo ichinonoka kupera uye nekudaro inowedzera kuburitswa kwezvinhu zvinoshanda.
High Viscosity (HV) HPMC
High viscosity HPMC ine huremu hwepamusoro-soro hwemagiredhi ese matatu uye ndiyo ine mvura shoma inonyungudika.Inowanzo shandiswa mumashandisirwo anoda kukora uye kudzikamisa zvivakwa, senge sosi, makirimu uye gels.HV HPMC inobatsira kukwidziridza magadzirirwo uye viscosity yezvigadzirwa, ichipa yakawedzera kunakidza mushandisi ruzivo.Inogonawo kushandiswa kudzikamisa emulsions, kudzivirira kugadzirisa uye kuwedzera hupenyu hwesherufu.Pamusoro pezvo, HV HPMC inowanzo shandiswa muindasitiri yemapepa kuvandudza simba remapepa uye kudhindwa.
mukupedzisa
Iyo chaiyo viscosity yeHPMC yakakosha kukwenenzvera kuita kwayo munzvimbo dzakasiyana dzekushandisa.LV HPMC inonyatsokodzera maapplication anoda yakaderera kusvika yepakati viscosity mhinduro, nepo MV HPMC yakakodzera kune yakakora mhinduro senge pendi, mavhanishi neingi.Chekupedzisira, HV HPMC yakakodzera zvikumbiro zvinoda kukora uye kudzikamisa zvivakwa zvakaita semafuta, gels uye sosi.Kusarudza iyo chaiyo viscosity inogona kubatsira kuvandudza kuita kwese kweHPMC uye kuita kuti ive yakakodzera kune akasiyana maapplication.
Nguva yekutumira: Aug-31-2023