Hydroxypropyl methylcellulose (HPMC) yog ib qho khoom siv polymer uas siv dav hauv kev lag luam xws li tshuaj, khoom noj, thiab kev tsim kho. Nws qhov kev ua tau zoo sib txawv raws nws cov qib, uas txawv ntawm qhov tsis xws li viscosity, qib kev hloov pauv, qhov loj me, thiab purity. Nkag siab li cas cov ...
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