HPMC maka ihe nkiri mkpuchi

Hpmc makaIyi mkpuchi bụ usoro nke ịkpụ ihe nkiri dị mkpa nke polymer n'elu nkwadebe siri ike. Dịka ọmụmaatụ, oyi akwa na-efesa otu mpempe akwụkwọ mpempe akwụkwọ dị larịị site na iji usoro ihe nkiri plastik ọtụtụ ndị toro eto, iji rụpụta mmetụta achọrọ. E guzobere ihe nkiri a na mpụga mbadamba ihe ahụ bụ na mbadamba ụrọ na-agbaso ihe plymer na-agbaso ihe ndị na-eme polymer ka ọ gafere, wee nweta akụkụ ọzọ nke ihe na-ekpuchi ihe. Mgbe emechara ndọghachi azụ na ihicha, a na-ehicha mkpuchi ruo mgbe elu nke nkwadebe ahụ kpamkpam. Fim mkpuchi bụ ihe nkiri na-aga n'ihu, ọkpụrụkpụ dị n'etiti 8 na 100 na 100 ruo 100 ruo 100 micron, ogo ụfọdụ na-agbanwe agbanwe na ngbanwe, jidesie ike na elu nke isi.

Na 1954, abbott mepụtara akwụkwọ onyonyo mbụ, kemgbe ahụ, a tọhapụla ihe nkiri na teknụzụ, nke a na-emepụta teknụzụ na-ebu ihe nkiri ngwa ngwa. Ọ bụghị naanị na ndị ọrụ na-ejikarị mkpuchi na-agba agba agba agba agba agba agba agba agba agba agba agbawo ngwa ngwa, kamakwa ụdị, ụdị na njirimara nke ihe nkiri na-ekpuchi ihe nkiri na mkpuchi nke ọgwụ TCM nke ukwuu. Ya mere, ntinye nke teknụzụ ị na-eme ihe nkiri abụrụla mkpa na mmepe nke ụlọ ọrụ ọgwụ iji melite ogo ngwaahịa.

Oge eji eme ihe nkiri na-eme ihe nkiri na-akpụ akpụ ihe, a ka nwere ọnụọgụ dị ukwuu site na iji HPMChydroxypylthththththylcelllosedị ka ihe mmeme. Ọ bụ ọchaHpmcCelllose site na akwa ma ọ bụ osisi pulp, na sodium hydroxide ga-egosipụta ọgbụgba nke alkali cellulose, wee jiri chloromy ethylypypylHpmc, ngwaahịa a iji wepu adịghị ọcha mgbe ihicha, ịkụ mmiri, nkwakọ. Ohaneze, viscosity HPMC na-eji dịkafiimA na-eji ihe mkpuchi, na 2% ~ 10% na-eji usoro mkpuchi. Ọdịmma ndị ahụ bụ na mgbasawanye buru oke ibu na mgbasawanye siri ike.

Ọgbọ nke abụọ nke ihe nkiri na-akpụ akpụ bụ mmanya (PVA). Mmanya polyvinyl na-egbu egbu site na mmanya nke polyvinylll acetate. Enweghi ike iji Vinyl na-anyụgharị ihe dị ka onye na-arụsi ọrụ ike n'ihi na ha anaghị ezute oke na ịdị ọcha nke chọrọ maka polymerization. Na Methanol, ethanol ma ọ bụ ethanol na methy acetate agwakọta na alkali metal ma ọ bụ inoorganic acid dị ka ihe na-eme ngwa ngwa.

A na-ejikarị PVA n'ọtụtụ ihe. N'ihi na ọ bụ innoluble na mmiri n'ụlọ okpomọkụ, a na-eji ihe dị ka ihe dị ka afọ 20%. Mmiri vepo na oxygen nke PPMC dị ala karịa HPMC na EC, yabụ ike nke mmiri vepo na oxygen siri ike, nke nwere ike ichebe ihe mgbawa isi.

Plakuzer na-ezo aka na ihe nwere ike iwelie plastity ụdị ihe nkiri. Fọdị ihe nkiri na-etolite ihe ndị na-agbanwe ngwa nke anụ ahụ mgbe obere ọnọdụ belata, na ikegharị nke hacromolecules dị obere, na-eme ka ọ dị mkpa adịghị ike, ma na-adị mfe ịgbaji. A gbakwụnye plastizer iji belata mmiri ntụgharị (TG) ma nwekwuo ike mgbanwe mkpuchi. A na-ejikarị fọdụ na kpụrụ akpụ osisi dị iche iche bụ ihe amorphous nwere nnukwu molecular ibu na mmekọrịta siri ike na ihe ndị na-akpụ akpụ. Onensighter na-enyere aka belata ike nke mkpuchi, si otú a na-abawanye nkwụsi ike nke nkwadebe.

A na-ekwere na usoro plastizer bụ na a na-agbakwu na ụmụ irighiri polizer ka etinyere na polymer yinye, nke na-egbochi mmekọrịta dị n'etiti ọtụtụ ụmụ irighiri polymer ruo n'ogologo. Mkpakọrịta ahụ dị mfe mgbe mmekọrịta polymer-fọdụrụsi ike karịa mmekọrịta polymer-fọdụrụ. Ya mere, ohere maka otu polymer ngalaba ka ọ na-abawanye.

Ọgbọ nke atọ nke fim na-akpụ ihe bụ fọdụrụ plastizer site na usoro kemịkal anyadokwa na ihe nkiri na-akpụzi polmer

Iji maa atụ, ihe nkiri vidio mepụtara Kolloceash® nke Basf bụ ọgwụ nke polymer na-enweghị ịgbakwunye plastik, ya mere, ọ nwere ike zere ịkwaga ọdọ mmiri mgbe ị na-eme mkpọtụ