Hydroxypylthyl Methyl Cellulose (HPMC), nke amara aha ya hypromellose, bụ polymer sịntetik sitere na cellulose. Isi mmalite nke Celluse maka mmepụta nke Hpmc a osisi pulp ma ọ bụ owu. Usoro na-arụpụta ihe na-agụnye cellulose site na celdification site na ogo, ewebata hydropyyl na Methyl dị iche iche sellone.

Mmepụta HPMC gụnyere ọtụtụ usoro:

1. Mkpụrụ osisi cellulose:
   • A na - enweta cellose site na isi ihe ubi, nke bụ isi osisi purp ma ọ bụ owu. A na-amịpụta sellose ma dị ọcha iji mepụta pulp pulp.
2. Alkalization:
   • A na-emeso pulp na ngwọta alkaline, na-abụkarị sodium hydroxide (NaOh), iji mee ka otu Hydropose yie.
3. Ether:
   • Etalification bụ isi ihe na mmepụta nke HPMC. Mkpụrụ osisi alkalad na-emeghachi omume na proslene oxide (maka hydropopyyyylylyl) na otu methyth conloride (maka otu methy) iji webata òtù ahụ ndị a na Cellulose Backbone.
4. Nnọpụ ya na ịsacha:
   • Ihe mgbakwunye agbanweela, nke a bụ ugbu a hydroxypylthyl methyl methyl cellulose, na-agapụta usoro na-anọpụ iche iji wepu alkali ọ bụla fọdụrụ. A na-asacha ya nke ọma iji kpochapụ adịghị ọcha na ngwaahịa.
5. Ihicha na Millling:
   • Mkpụrụ cellulose a na-akpọnwụ na iwepu oke mmiri ma mee ka ọ bụrụ ntụ ntụ. Enwere ike ịchịkwa nha uru sitere na ngwa achọrọ.

Ihe si na HPMC ngwaahịa dị ọcha ma ọ bụ nke na-acha ọcha na-acha ọcha nke nwere ogo dịgasị iche iche nke hydropyyl na methy nbanye. Njirimara nke HPMC, dị ka ọ dị mkpa, viscosity, na njirimara arụmọrụ ndị ọzọ, dabere ogo nbanye na usoro nrụpụta.

Ọ dị mkpa ịmara na HPMC bụ polymer polymer, mgbe ọ na-enweta ya site na ọnọdụ ikuku dị iche iche n'oge nrụpụta iji nweta ihe ọ chọrọ maka ngwa ọrụ.