Ngwa nke cellulose ether na teknụzụ gbazee na-ekpo ọkụ

Joseph Brama chepụtara usoro a na-eme maka mmepụta nke ndunye ọkpọkọ na ngwụsị narị afọ nke 18. Ọ bụghị ruo mgbe etiti narị afọ nke 19 nke na-ekpo ọkụ na teknụzụ mmiri A gbazere mmiri na-ekpo ọkụ na ụlọ ọrụ plastik. Emere ya na mmepụta nke cocymer comelings maka wires eletrik. Taa, a na-eji teknụzụ Mgbapụta Mgbapụta na-ekpo ọkụ na-ekpo ọkụ ọ bụghị naanị na mmepụta nke ngwaahịa polymer, kamakwa na mmepụta na ịgwakọta nke polymers onwe ha. Ka ọ dị ugbu a, ihe karịrị ọkara nke ngwaahịa rọba, gụnyere akpa plastik, akwa plastic na ọkpọkọ plastik, iji usoro a.

Ka e mesịrị, teknụzụ a jiri nwayọ pụta na mbara ọgwụ na-egbu egbu ma jiri nwayọ ghọrọ teknụzụ dị mkpa. Ugbu a ndị mmadụ na-eji teknụzụ na-ekpo ọkụ na-ekpo ọkụ iji dozie mbadamba ihe, na mbadamba akwụkwọ ozi, transpended na usoro nnyefe ọgwụ na-enweghị mmasị ugbu a? Ihe kpatara ya bụ n'ihi na e jiri ya tụnyere usoro mmepụta ọdịnala n'oge gara aga, teknụzụ Mgbapụta Mgbatị Mgbatị Mgbatị A gbazee na-ekpo ọkụ nwere uru ndị a:

Meziwanye ọnụego mgbasa nke ọgwụ na-adịghị mma

E nwere uru dị na ịkwadebe usoro nnabata

Nkwadebe nke afọ na-edepụta afọ

Meziwanye ihe ngosi

A na-emezu usoro slicking n'otu ụzọ

Mepee ụzọ ọhụrụ maka nkwadebe nke micropels

N'etiti ha, celluse evet na-arụ ọrụ dị mkpa na usoro a, ka anyị leba anya na ntinye nke celluloose anyị!

Ojiji ethyl cellulose

Ethyl Cellulose bụ ụdị nke hydrophobic ether cellulose. N'ime ọgwụ ọgwụ, a na-ejikarị ya na microcienceCasation nke arụ ọrụ, ihe mgbaze na nsụgharị, pọks pịrị apị na dị ka mkpuchi maka mbadamba ohere na bead. Ethlyl Cellulose nwere ike ịbawanye ihe dị iche iche molecular. Okpomoku mmiri nke iko ya bụ 129-133 ogo Celsius, na isi kristal ya dị migs 180 ogo Celsius 180 Celsius. Ethyl Cellulose bụ ezigbo nhọrọ maka iwe n'ihi na ọ na-egosipụta ihe na - eme ihe ọkụkụ dị n'elu ọnọdụ mgbanwe ya na n'okpuru okpomọkụ ya.

Iji belata iko polymers nke polymers, usoro kachasị dị iche iche bụ ịgbakwunye fọdụrụ, yabụ enwere ike ịhazi ya na obere okpomọkụ. Ọgwụ ụfọdụ nwere ike ime ka fọdụrụ onwe ha, yabụ na ọ dịghị mkpa ịghaghachite na rọrọ n'oge ọgwụ usoro ọgwụgwọ. Dịka ọmụmaatụ, achọpụtara ya na ihe nkiri nwere ibuprofen na ethy cellulose nwere obere ntụgharị mmiri karịa fim nwere naanị etyl cellulose. Enwere ike ịme fim ndị a na ụlọ nyocha nwere ihe eji egwuri anya ejima. Ndị na-eme nchọpụta na-emekwa ka ọ ghọọ ntụgwụ ma rụzie nyocha ọkụ. Ọ tụgharịrị na ịba ụba nke Ibuprofen nwere ike belata mmiri ntụgharị.

Nnwale ọzọ bụ ịgbakwunye ihe ndị na-enweghị atụ, hypromellose, na Xanthan gum ka ethylcelllose na ibuprofen micromes. E kwubiri na Micromatriks mepụtara site na usoro nke na-ekpo ọkụ na-ekpo ọkụ nwere ọgwụ ịmịcha ọgwụ karịa ngwaahịa a na-ahụ maka azụmahịa. Ndị nchọpụta ahụ mepụtara micromatriks site na iji ụlọ nyocha ụlọ nyocha na ihe eji eme ihe eji eme ihe eji egwuri egwu na-anwụ. Ejiri aka wepụta ya bụ 2 mm ogologo oge.

Jiri Hypromellose

Hydroxypyl Methylcellose bụ hydrophilic eart na-aza ya na doo anya ma ọ bụ nke nwere ike colloidal ngwọta doro anya na mmiri oyi. Ngwọta osisi nwere ọrụ dị elu, nghọta dị elu na arụmọrụ kwụ ọtọ. Ngụgụ dị iche iche na viscosity. N'okpuru viscosity, ka mkpali ike. Njirimara nke hydropyylthyl methylcelllose na nkọwapụta dị iche iche dị iche, uru nke PH na-emetụtaghị ya.

N'ime ụlọ ọrụ ọgwụ, a na-ejikarị ya na mwepụta matriks, nhazi mbadamba, nke pụtara na ọ bụrụ na ọ dabere na ojiji ndị ọzọ, ọnọdụ okpomọkụ ya karịrị 250 ogo Celsius 250. N'ihi nke ọma ụdị ntụgharị mmiri ya na ọnọdụ okpomọkụ dị ala, ọ naghị eji teknụzụ gbazee afọ ojuju. Iji gbasaa ogo ya, otu usoro bụ naanị ijikọ nnukwu plastizer na usoro nhazi nke usoro nhazi ahụ kwuru, ma jiri mkpụrụ osisi matrik nke ibu nke plastizer bụ opekata mpe 30%.

Enwere ike ijikọ othllcellose na hydroxymmylmethylcellosethylcelllosethylcellose n'ụzọ pụrụ iche na nza nke ọgwụ. Otu n'ime usoro onunu ogwu a bu iji ethllolose dika nmeme, ma dozie nkpuru osisi hypromollose. Isi counguo.

A na-emepụta tube ethylcellose site na iji igwe na-acha uhie uhie na-agbagharị na ụlọ nyocha na-etinye ihe mgbakọ na-etinye ihe na-eme ka mgbakọ ahụ ruo mgbe ọ na-agbaze, na-esochi. A na-eji aka nri abanye na ọkpọkọ. Ebumnuche nke ọmụmụ a bụ iwepụ mmetụta nke ịma mma nke na-eme mgbe ụfọdụ na hydypypyl Methylcellopy Matriks Matriks. Ndị na-eme nchọpụta achọpụtala ọdịiche ahụ maka iwepụta hydroxylthylylthylthyl methypypyl na methylcellose rụpụtara ọnụego ntọhapụ ngwa ngwa.

Udidi

Ọ bụ ezie na iwe ala na-ekpo ọkụ bụ obere teknụzụ ọhụụ dị na ụlọ ọrụ ọgwụ, ọ dọtara uche ma na-eji meziwanye mmepụta nke ọtụtụ ụdị onunu ogwu na sistemu. Teknụzụ Weftey na-ekpo ọkụ abụrụla teknụzụ ndị na-eduga maka ịkwadebe mba ofesi siri ike. N'ihi na ụkpụrụ teknụzụ ya yiri usoro nkwadebe, etinyekwala ya na ọrụ ndị ọzọ ruo ọtụtụ afọ ma chịkọta ọtụtụ ahụmịhe, o nwere atụmanya mmepe. Site na omimi nke nyocha, ekwenye na a ga-esiwanye ike na ntinye ya. N'otu oge ahụ, teknụzụ Mgbatị agbatị na-enweghị atụ na-enwechaghị ọgwụ na akpaaka nke akpaaka. Mgbe mgbanwe ahụ gasịrị nye ụlọ ọrụ ọgwụ, a kwenyere na mgbanwe GMP ya ga-adị ngwa ngwa.