Hydroxypropyl methylcellulose (HPMC) yog cov khoom siv polymer dav siv hauv cov tshuaj, tshuaj pleev ib ce, khoom noj khoom haus, thiab ntau yam kev siv hauv kev lag luam. Nws qhov kev sib cais tuaj yeem sib txawv nyob ntawm ntau yam xws li kub, pH, concentration, particle loj, thiab qib tshwj xeeb ntawm HPMC siv. Ua...
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