ʻO ka hydroxyprooppropyl millll celflouse (hpmc), iʻikeʻia e ka inoa o ka inoa kālepa he hypromellose,ʻo ia kahi polymer i loaʻa mai nā cellulose kūlohelohe. ʻO ke kumu kumu nui o ka cellouse no ka hanaʻana o ka hpmc maʻamau i ka lāʻau lāʻau lāʻau a iʻole ka cotton. ʻO ka hana hana e pili ana i ke hoʻololiʻana i ka chemically e hoʻololi ana i ka cellouse ma ka hoʻopioʻana, e hōʻike ana i nā hui hydroypopyl a me nā miyyl hui ma ke kua.

ʻO ka hanaʻana o ka hpmc e pili i kekahi mauʻokoʻa:

1. ʻO ka extration cellouse:
   • Loaʻaʻia ka cellouse mai nā kumu kanu lāʻau,ʻo ka ulu lāʻau mua a iʻole ka cotton. ʻO ka cellouse ka mea i laweʻia a hoʻomaʻemaʻeʻia e hana i ka pulu cellouse.
2. ALkalization:
   • Hanaʻia ka pulu pulupulu me kahi hopena alkaline, maʻamau sodium hydroxide (Naoh), e hoʻoulu i nā hui hydroxyl ma ke kaulahao hydroxyl.
3. ʻO Othertification:
   • ʻO ka eterification ke kī nui loa i ka hana o ka hpmc. Ua hanaʻia ka cellunuzed cellouse me ka prostlene propide (no nā hui hydroxyproopyl) a me ka mityl chloride) e hoʻolauna i kēia mau hui.
4. Nahelehele a me ka holoiʻana:
   • ʻO keʻano o ka cellufied celliese,ʻo ia kēia manawaʻo hydroxyproopsl milllulse, i lalo i keʻano o ka alkali. A laila e holoiʻia ia e hoʻopau i nā haumia a me nā huahana.
5. Ka maloʻo a me ka milling:
   • Hoʻoliloʻia ka cellouse e wehe i ka nui o ka wai nui a laila e hoʻopiliʻia i loko o kahi powder maikaʻi. Hiki ke mālamaʻia ka nui o ka'āpana ma luna o ka noi i manaʻoʻia.

ʻO ka huahana HPMC manaʻo he keʻokeʻo a iʻole nā ​​keʻokeʻo keʻokeʻo a iʻole paha i ke kiʻekiʻe o nā kiʻekiʻe o ka hydroxyprooppoppopsh. ʻO nā waiwai kiko'ī o HPMC, e like me kāna solibility, Viscosity, a me nā hiʻohiʻona hana'ē aʻe, e pili ana i keʻano o keʻano o keʻano a me nā kaʻina hana hana.

He mea nui ia e hoʻomaopopo i ka hpmc he polymer semi-synthetic i loaʻa i nā hoʻololi kūlohelohe no nāʻano hana likeʻole e hoʻokō ai i nāʻano hana maʻamau.