Hydroxypropylmethylsellose (HPMC) ndeye cellulose ether inotorwa kubva kune zvakasikwa masosi akadai sehuni yehuni uye machira ekotoni. Nekuda kwezvivakwa zvaro zvakasarudzika, kusanganisira kusanganisa kwemvura solubility, kukoshesa kugona, mafirimu-ekuumba midziyo, etc., inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana. Chimwe chezvinhu zvakakosha kufunga kana uchishandisa HPMC iwisikopa yayo, iyo inogona kukanganisa zvakanyanya kuita kwayo munzvimbo dzakasiyana siyana. Munyaya ino, tinokurukura kuti nei cellulose hpmc ine vema viscoves inofanirwa kusarudzwa kune dzakasiyana nzvimbo yekushandisa, uye kuti viscosity yakakwana sei inogona kubatsira kugadzirisa hpmc.
Viscosity chiyero chekuramba kwemvura kuyerera uye kukosha kwakakosha kana uchigadzira zvigadzirwa izvo zvinoda zvigadzirwa zvinoda kuyerera maitiro. Viscosity inobata basa reHPMC nekuti inozivisa kugona kwayo kuumba geli, inokanganisa iyo pH yemhinduro, iko ukobvu hwekutora, uye zvimwe zvivakwa zvemuviri. HPMC inowanikwa mune dzakasiyana siyana viscosity mamakisi, iyo yakajairika mhando kuve yakaderera viscosity (Lv), pakati peviscoity (mv) uye yakakwira viscosity (HV) (HV) (HV). Imwe yeiyi mhando ine chinangwa chaicho uye chakakodzera kune yakatarwa nharaunda.
Yakadzika viscosity (LV) HPMC
Yakadzika viscosity HPMC ine yakaderera shoma molecular uremu uye inokatyamadza mumvura. Ndiwo mhando yakajairika yeHPMC uye inoshandiswa mumhando dzakasiyana-siyana dzeindasitiri kusanganisira chikafu, cosmetics, kuvaka uye mishonga mishonga. LV HPMC yakanakira kunyorera inoda kuderera kusvika pakati pekuvonekwa kwemukati kwakadaro masheji akajeka, emulsions uye pendi. LV HPMC inogona zvakare kushandiswa kuwedzera hupenyu hwesherufu hwekudya, kuderedza synesa uye kupa chimiro chakanyatsojeka.
LV HPMC inowanzoshandiswawo mune yekuvaka indasitiri yekuvandudza basa rekushanda kwezvinhu zvimende zvakadai semumba, ma grires uye matombo anomhara. Inobatsira kuderedza kurasikirwa kwemvura mumidziyo yemasimendi, inodzivirira kupaza, uye inosimbisa kubatana pakati pezvinhu. LV HPMC inoshandiswawo kuwedzera simba uye kujaira kweplaster, stucco uye zvimwe zvinhu zvakabatana.
Medium Viscosity (MV) HPMC
Pakati peva viscosity HPMC ine yakakwira mamelecular uremu kupfuura LV HPMC uye haina kunyanyoka mumvura. Izvo zvinowanzo shandiswa mune zvekushandisa zvinoda mhinduro dzinosungirwa zvakanyanya senge marara, varnish uye inks. MV HPMC ine zvirinani kuyerera kudzora uye zvigadzirwa zvekushandisa kupfuura LV HPMC, zvichikonzera kuyunifomu uye kusarongeka firimu. MV HPMC inogona zvakare kushandiswa pamusoro penzvimbo yakafara pH, ichipa kuwedzera kuwedzera kune dzakasiyana siyana dzekushandisa.
MV HPMC zvakare inoshandiswa zvakanyanya mune zvigadzirwa zveMishonga, sekudzorwa kwematafura ekusimudzira, sezvo kunonoka kushungurudzika uye nekudaro kusunungurwa kusunungurwa kwezvinhu zvinoshanda.
Yakakwira viscosity (HV) HPMC
Yakakwira viscosity HPMC ine yakakwira mamexcular uremu hwemakiredhiro matatu uye ndiyo diki yemvura inonyura. Izvo zvinowanzo shandiswa mune zvekushandisa zvinoda kureruka uye kusimbisa zvivakwa, senge sosi, mafuta uye gels. HV HPMC inobatsira kusimudzira iyo tumbozha uye viscosity yezvigadzirwa, ichipa chiitiko chinonakidza chemushandisi. Inogona zvakare kushandiswa kudzikisira emulsions, kudzivirira kugadzirisa uye kuwedzera hupenyu hwesherufu. Pamusoro pezvo, HV HPMC inowanzoshandiswa muindasitiri yepepa kuti uvandudze pepa uye kudhinda.
mumhedziso
Iyo chaiyo viscosity yeHPMC yakanyanya kutsoropodza maitiro ayo munzvimbo dzakasiyana siyana dzekushandisa. LV HPMC yakanakira kunyorera inoda kuderera kune yakadzika mvoncosses mhinduro, nepo mv HPMC yakakodzera mhinduro dzakarukwa dzakadai sekupenda, zvirongo. Pakupedzisira, HV HPMC yakakodzera kuti application inoda kureruka uye inosimbisa zvinhu zvakadai semakiromita, gerle uye sosi. Kusarudza iyo yakakwana viscosity inogona kubatsira kuvandudza mashandiro eHPMC uye ita kuti ive yakakodzera kune yakasiyana zvekushandisa.
Kutumira Nguva: Aug-31-2023